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fix bug https://github.com/AriaLyy/Aria/issues/322

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This commit is contained in:
laoyuyu
2018-11-08 19:50:16 +08:00
parent 66b36b355a
commit e22e2dc840
83 changed files with 248 additions and 241 deletions
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75
AriaFtpPlug/src/main/java/aria/apache/commons/net/io/CRLFLineReader.java Normal file
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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package aria.apache.commons.net.io;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.Reader;
/**
* CRLFLineReader implements a readLine() method that requires
* exactly CRLF to terminate an input line.
* This is required for IMAP, which allows bare CR and LF.
*
* @since 3.0
*/
public final class CRLFLineReader extends BufferedReader {
private static final char LF = '\n';
private static final char CR = '\r';
/**
* Creates a CRLFLineReader that wraps an existing Reader
* input source.
*
* @param reader The Reader input source.
*/
public CRLFLineReader(Reader reader) {
super(reader);
}
/**
* Read a line of text.
* A line is considered to be terminated by carriage return followed immediately by a linefeed.
* This contrasts with BufferedReader which also allows other combinations.
*
* @since 3.0
*/
@Override public String readLine() throws IOException {
StringBuilder sb = new StringBuilder();
int intch;
boolean prevWasCR = false;
synchronized (lock) { // make thread-safe (hopefully!)
while ((intch = read()) != -1) {
if (prevWasCR && intch == LF) {
return sb.substring(0, sb.length() - 1);
}
if (intch == CR) {
prevWasCR = true;
} else {
prevWasCR = false;
}
sb.append((char) intch);
}
}
String string = sb.toString();
if (string.length() == 0) { // immediate EOF
return null;
}
return string;
}
}

111
AriaFtpPlug/src/main/java/aria/apache/commons/net/io/CopyStreamAdapter.java Normal file
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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package aria.apache.commons.net.io;
import java.util.EventListener;
import aria.apache.commons.net.util.ListenerList;
/**
* The CopyStreamAdapter will relay CopyStreamEvents to a list of listeners
* when either of its bytesTransferred() methods are called. Its purpose
* is to facilitate the notification of the progress of a copy operation
* performed by one of the static copyStream() methods in
* org.apache.commons.io.Util to multiple listeners. The static
* copyStream() methods invoke the
* bytesTransfered(long, int) of a CopyStreamListener for performance
* reasons and also because multiple listeners cannot be registered given
* that the methods are static.
*
* @version $Id: CopyStreamAdapter.java 1741829 2016-05-01 00:24:44Z sebb $
* @see CopyStreamEvent
* @see CopyStreamListener
* @see Util
*/
public class CopyStreamAdapter implements CopyStreamListener {
private final ListenerList internalListeners;
/**
* Creates a new copyStreamAdapter.
*/
public CopyStreamAdapter() {
internalListeners = new ListenerList();
}
/**
* This method is invoked by a CopyStreamEvent source after copying
* a block of bytes from a stream. The CopyStreamEvent will contain
* the total number of bytes transferred so far and the number of bytes
* transferred in the last write. The CopyStreamAdapater will relay
* the event to all of its registered listeners, listing itself as the
* source of the event.
*
* @param event The CopyStreamEvent fired by the copying of a block of
* bytes.
*/
@Override public void bytesTransferred(CopyStreamEvent event) {
for (EventListener listener : internalListeners) {
((CopyStreamListener) (listener)).bytesTransferred(event);
}
}
/**
* This method is not part of the JavaBeans model and is used by the
* static methods in the org.apache.commons.io.Util class for efficiency.
* It is invoked after a block of bytes to inform the listener of the
* transfer. The CopyStreamAdapater will create a CopyStreamEvent
* from the arguments and relay the event to all of its registered
* listeners, listing itself as the source of the event.
*
* @param totalBytesTransferred The total number of bytes transferred
* so far by the copy operation.
* @param bytesTransferred The number of bytes copied by the most recent
* write.
* @param streamSize The number of bytes in the stream being copied.
* This may be equal to CopyStreamEvent.UNKNOWN_STREAM_SIZE if
* the size is unknown.
*/
@Override public void bytesTransferred(long totalBytesTransferred, int bytesTransferred,
long streamSize) {
for (EventListener listener : internalListeners) {
((CopyStreamListener) (listener)).bytesTransferred(totalBytesTransferred, bytesTransferred,
streamSize);
}
}
/**
* Registers a CopyStreamListener to receive CopyStreamEvents.
* Although this method is not declared to be synchronized, it is
* implemented in a thread safe manner.
*
* @param listener The CopyStreamlistener to register.
*/
public void addCopyStreamListener(CopyStreamListener listener) {
internalListeners.addListener(listener);
}
/**
* Unregisters a CopyStreamListener. Although this method is not
* synchronized, it is implemented in a thread safe manner.
*
* @param listener The CopyStreamlistener to unregister.
*/
public void removeCopyStreamListener(CopyStreamListener listener) {
internalListeners.removeListener(listener);
}
}

113
AriaFtpPlug/src/main/java/aria/apache/commons/net/io/CopyStreamEvent.java Normal file
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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package aria.apache.commons.net.io;
import java.util.EventObject;
/**
* A CopyStreamEvent is triggered after every write performed by a
* stream copying operation. The event stores the number of bytes
* transferred by the write triggering the event as well as the total
* number of bytes transferred so far by the copy operation.
*
* @version $Id: CopyStreamEvent.java 1652801 2015-01-18 17:10:05Z sebb $
* @see CopyStreamListener
* @see CopyStreamAdapter
* @see Util
*/
public class CopyStreamEvent extends EventObject {
private static final long serialVersionUID = -964927635655051867L;
/**
* Constant used to indicate the stream size is unknown.
*/
public static final long UNKNOWN_STREAM_SIZE = -1;
private final int bytesTransferred;
private final long totalBytesTransferred;
private final long streamSize;
/**
* Creates a new CopyStreamEvent instance.
*
* @param source The source of the event.
* @param totalBytesTransferred The total number of bytes transferred so
* far during a copy operation.
* @param bytesTransferred The number of bytes transferred during the
* write that triggered the CopyStreamEvent.
* @param streamSize The number of bytes in the stream being copied.
* This may be set to <code>UNKNOWN_STREAM_SIZE</code> if the
* size is unknown.
*/
public CopyStreamEvent(Object source, long totalBytesTransferred, int bytesTransferred,
long streamSize) {
super(source);
this.bytesTransferred = bytesTransferred;
this.totalBytesTransferred = totalBytesTransferred;
this.streamSize = streamSize;
}
/**
* Returns the number of bytes transferred by the write that triggered
* the event.
*
* @return The number of bytes transferred by the write that triggered
* the vent.
*/
public int getBytesTransferred() {
return bytesTransferred;
}
/**
* Returns the total number of bytes transferred so far by the copy
* operation.
*
* @return The total number of bytes transferred so far by the copy
* operation.
*/
public long getTotalBytesTransferred() {
return totalBytesTransferred;
}
/**
* Returns the size of the stream being copied.
* This may be set to <code>UNKNOWN_STREAM_SIZE</code> if the
* size is unknown.
*
* @return The size of the stream being copied.
*/
public long getStreamSize() {
return streamSize;
}
/**
* @since 3.0
*/
@Override public String toString() {
return getClass().getName()
+ "[source="
+ source
+ ", total="
+ totalBytesTransferred
+ ", bytes="
+ bytesTransferred
+ ", size="
+ streamSize
+ "]";
}
}

69
AriaFtpPlug/src/main/java/aria/apache/commons/net/io/CopyStreamException.java Normal file
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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package aria.apache.commons.net.io;
import java.io.IOException;
/**
* The CopyStreamException class is thrown by the org.apache.commons.io.Util
* copyStream() methods. It stores the number of bytes confirmed to
* have been transferred before an I/O error as well as the IOException
* responsible for the failure of a copy operation.
*
* @version $Id: CopyStreamException.java 1299238 2012-03-10 17:12:28Z sebb $
* @see Util
*/
public class CopyStreamException extends IOException {
private static final long serialVersionUID = -2602899129433221532L;
private final long totalBytesTransferred;
/**
* Creates a new CopyStreamException instance.
*
* @param message A message describing the error.
* @param bytesTransferred The total number of bytes transferred before
* an exception was thrown in a copy operation.
* @param exception The IOException thrown during a copy operation.
*/
public CopyStreamException(String message, long bytesTransferred, IOException exception) {
super(message);
initCause(exception); // merge this into super() call once we need 1.6+
totalBytesTransferred = bytesTransferred;
}
/**
* Returns the total number of bytes confirmed to have
* been transferred by a failed copy operation.
*
* @return The total number of bytes confirmed to have
* been transferred by a failed copy operation.
*/
public long getTotalBytesTransferred() {
return totalBytesTransferred;
}
/**
* Returns the IOException responsible for the failure of a copy operation.
*
* @return The IOException responsible for the failure of a copy operation.
*/
public IOException getIOException() {
return (IOException) getCause(); // cast is OK because it was initialised with an IOException
}
}

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AriaFtpPlug/src/main/java/aria/apache/commons/net/io/CopyStreamListener.java Normal file
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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package aria.apache.commons.net.io;
import java.util.EventListener;
/**
* The CopyStreamListener class can accept CopyStreamEvents to keep track
* of the progress of a stream copying operation. However, it is currently
* not used that way within NetComponents for performance reasons. Rather
* the bytesTransferred(long, int) method is called directly rather than
* passing an event to bytesTransferred(CopyStreamEvent), saving the creation
* of a CopyStreamEvent instance. Also, the only place where
* CopyStreamListener is currently used within NetComponents is in the
* static methods of the uninstantiable org.apache.commons.io.Util class, which
* would preclude the use of addCopyStreamListener and
* removeCopyStreamListener methods. However, future additions may use the
* JavaBean event model, which is why the hooks have been included from the
* beginning.
*
* @version $Id: CopyStreamListener.java 1652801 2015-01-18 17:10:05Z sebb $
* @see CopyStreamEvent
* @see CopyStreamAdapter
* @see Util
*/
public interface CopyStreamListener extends EventListener {
/**
* This method is invoked by a CopyStreamEvent source after copying
* a block of bytes from a stream. The CopyStreamEvent will contain
* the total number of bytes transferred so far and the number of bytes
* transferred in the last write.
*
* @param event The CopyStreamEvent fired by the copying of a block of
* bytes.
*/
public void bytesTransferred(CopyStreamEvent event);
/**
* This method is not part of the JavaBeans model and is used by the
* static methods in the org.apache.commons.io.Util class for efficiency.
* It is invoked after a block of bytes to inform the listener of the
* transfer.
*
* @param totalBytesTransferred The total number of bytes transferred
* so far by the copy operation.
* @param bytesTransferred The number of bytes copied by the most recent
* write.
* @param streamSize The number of bytes in the stream being copied.
* This may be equal to CopyStreamEvent.UNKNOWN_STREAM_SIZE if
* the size is unknown.
*/
public void bytesTransferred(long totalBytesTransferred, int bytesTransferred, long streamSize);
}

238
AriaFtpPlug/src/main/java/aria/apache/commons/net/io/DotTerminatedMessageReader.java Normal file
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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package aria.apache.commons.net.io;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.Reader;
/**
* DotTerminatedMessageReader is a class used to read messages from a
* server that are terminated by a single dot followed by a
* &lt;CR&gt;&lt;LF&gt;
* sequence and with double dots appearing at the begining of lines which
* do not signal end of message yet start with a dot. Various Internet
* protocols such as NNTP and POP3 produce messages of this type.
* <p>
* This class handles stripping of the duplicate period at the beginning
* of lines starting with a period, and ensures you cannot read past the end of the message.
* <p>
* Note: versions since 3.0 extend BufferedReader rather than Reader,
* and no longer change the CRLF into the local EOL. Also only DOT CR LF
* acts as EOF.
*
* @version $Id: DotTerminatedMessageReader.java 1747119 2016-06-07 02:22:24Z ggregory $
*/
public final class DotTerminatedMessageReader extends BufferedReader {
private static final char LF = '\n';
private static final char CR = '\r';
private static final int DOT = '.';
private boolean atBeginning;
private boolean eof;
private boolean seenCR; // was last character CR?
/**
* Creates a DotTerminatedMessageReader that wraps an existing Reader
* input source.
*
* @param reader The Reader input source containing the message.
*/
public DotTerminatedMessageReader(Reader reader) {
super(reader);
// Assumes input is at start of message
atBeginning = true;
eof = false;
}
/**
* Reads and returns the next character in the message. If the end of the
* message has been reached, returns -1. Note that a call to this method
* may result in multiple reads from the underlying input stream to decode
* the message properly (removing doubled dots and so on). All of
* this is transparent to the programmer and is only mentioned for
* completeness.
*
* @return The next character in the message. Returns -1 if the end of the
* message has been reached.
* @throws IOException If an error occurs while reading the underlying
* stream.
*/
@Override public int read() throws IOException {
synchronized (lock) {
if (eof) {
return -1; // Don't allow read past EOF
}
int chint = super.read();
if (chint == -1) { // True EOF
eof = true;
return -1;
}
if (atBeginning) {
atBeginning = false;
if (chint == DOT) { // Have DOT
mark(2); // need to check for CR LF or DOT
chint = super.read();
if (chint == -1) { // Should not happen
// new Throwable("Trailing DOT").printStackTrace();
eof = true;
return DOT; // return the trailing DOT
}
if (chint == DOT) { // Have DOT DOT
// no need to reset as we want to lose the first DOT
return chint; // i.e. DOT
}
if (chint == CR) { // Have DOT CR
chint = super.read();
if (chint == -1) { // Still only DOT CR - should not happen
//new Throwable("Trailing DOT CR").printStackTrace();
reset(); // So CR is picked up next time
return DOT; // return the trailing DOT
}
if (chint == LF) { // DOT CR LF
atBeginning = true;
eof = true;
// Do we need to clear the mark somehow?
return -1;
}
}
// Should not happen - lone DOT at beginning
//new Throwable("Lone DOT followed by "+(char)chint).printStackTrace();
reset();
return DOT;
} // have DOT
} // atBeginning
// Handle CRLF in normal flow
if (seenCR) {
seenCR = false;
if (chint == LF) {
atBeginning = true;
}
}
if (chint == CR) {
seenCR = true;
}
return chint;
}
}
/**
* Reads the next characters from the message into an array and
* returns the number of characters read. Returns -1 if the end of the
* message has been reached.
*
* @param buffer The character array in which to store the characters.
* @return The number of characters read. Returns -1 if the
* end of the message has been reached.
* @throws IOException If an error occurs in reading the underlying
* stream.
*/
@Override public int read(char[] buffer) throws IOException {
return read(buffer, 0, buffer.length);
}
/**
* Reads the next characters from the message into an array and
* returns the number of characters read. Returns -1 if the end of the
* message has been reached. The characters are stored in the array
* starting from the given offset and up to the length specified.
*
* @param buffer The character array in which to store the characters.
* @param offset The offset into the array at which to start storing
* characters.
* @param length The number of characters to read.
* @return The number of characters read. Returns -1 if the
* end of the message has been reached.
* @throws IOException If an error occurs in reading the underlying
* stream.
*/
@Override public int read(char[] buffer, int offset, int length) throws IOException {
if (length < 1) {
return 0;
}
int ch;
synchronized (lock) {
if ((ch = read()) == -1) {
return -1;
}
int off = offset;
do {
buffer[offset++] = (char) ch;
} while (--length > 0 && (ch = read()) != -1);
return (offset - off);
}
}
/**
* Closes the message for reading. This doesn't actually close the
* underlying stream. The underlying stream may still be used for
* communicating with the server and therefore is not closed.
* <p>
* If the end of the message has not yet been reached, this method
* will read the remainder of the message until it reaches the end,
* so that the underlying stream may continue to be used properly
* for communicating with the server. If you do not fully read
* a message, you MUST close it, otherwise your program will likely
* hang or behave improperly.
*
* @throws IOException If an error occurs while reading the
* underlying stream.
*/
@Override public void close() throws IOException {
synchronized (lock) {
if (!eof) {
while (read() != -1) {
// read to EOF
}
}
eof = true;
atBeginning = false;
}
}
/**
* Read a line of text.
* A line is considered to be terminated by carriage return followed immediately by a linefeed.
* This contrasts with BufferedReader which also allows other combinations.
*
* @since 3.0
*/
@Override public String readLine() throws IOException {
StringBuilder sb = new StringBuilder();
int intch;
synchronized (lock) { // make thread-safe (hopefully!)
while ((intch = read()) != -1) {
if (intch == LF && atBeginning) {
return sb.substring(0, sb.length() - 1);
}
sb.append((char) intch);
}
}
String string = sb.toString();
if (string.length() == 0) { // immediate EOF
return null;
}
// Should not happen - EOF without CRLF
//new Throwable(string).printStackTrace();
return string;
}
}

189
AriaFtpPlug/src/main/java/aria/apache/commons/net/io/DotTerminatedMessageWriter.java Normal file
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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package aria.apache.commons.net.io;
import java.io.IOException;
import java.io.Writer;
/***
* DotTerminatedMessageWriter is a class used to write messages to a
* server that are terminated by a single dot followed by a
* &lt;CR&gt;&lt;LF&gt;
* sequence and with double dots appearing at the begining of lines which
* do not signal end of message yet start with a dot. Various Internet
* protocols such as NNTP and POP3 produce messages of this type.
* <p>
* This class handles the doubling of line-starting periods,
* converts single linefeeds to NETASCII newlines, and on closing
* will send the final message terminator dot and NETASCII newline
* sequence.
*
*
***/
public final class DotTerminatedMessageWriter extends Writer {
private static final int __NOTHING_SPECIAL_STATE = 0;
private static final int __LAST_WAS_CR_STATE = 1;
private static final int __LAST_WAS_NL_STATE = 2;
private int __state;
private Writer __output;
/***
* Creates a DotTerminatedMessageWriter that wraps an existing Writer
* output destination.
*
* @param output The Writer output destination to write the message.
***/
public DotTerminatedMessageWriter(Writer output) {
super(output);
__output = output;
__state = __NOTHING_SPECIAL_STATE;
}
/***
* Writes a character to the output. Note that a call to this method
* may result in multiple writes to the underling Writer in order to
* convert naked linefeeds to NETASCII line separators and to double
* line-leading periods. This is transparent to the programmer and
* is only mentioned for completeness.
*
* @param ch The character to write.
* @throws IOException If an error occurs while writing to the
* underlying output.
***/
@Override public void write(int ch) throws IOException {
synchronized (lock) {
switch (ch) {
case '\r':
__state = __LAST_WAS_CR_STATE;
__output.write('\r');
return;
case '\n':
if (__state != __LAST_WAS_CR_STATE) {
__output.write('\r');
}
__output.write('\n');
__state = __LAST_WAS_NL_STATE;
return;
case '.':
// Double the dot at the beginning of a line
if (__state == __LAST_WAS_NL_STATE) {
__output.write('.');
}
//$FALL-THROUGH$
default:
__state = __NOTHING_SPECIAL_STATE;
__output.write(ch);
return;
}
}
}
/***
* Writes a number of characters from a character array to the output
* starting from a given offset.
*
* @param buffer The character array to write.
* @param offset The offset into the array at which to start copying data.
* @param length The number of characters to write.
* @throws IOException If an error occurs while writing to the underlying
* output.
***/
@Override public void write(char[] buffer, int offset, int length) throws IOException {
synchronized (lock) {
while (length-- > 0) {
write(buffer[offset++]);
}
}
}
/***
* Writes a character array to the output.
*
* @param buffer The character array to write.
* @throws IOException If an error occurs while writing to the underlying
* output.
***/
@Override public void write(char[] buffer) throws IOException {
write(buffer, 0, buffer.length);
}
/***
* Writes a String to the output.
*
* @param string The String to write.
* @throws IOException If an error occurs while writing to the underlying
* output.
***/
@Override public void write(String string) throws IOException {
write(string.toCharArray());
}
/***
* Writes part of a String to the output starting from a given offset.
*
* @param string The String to write.
* @param offset The offset into the String at which to start copying data.
* @param length The number of characters to write.
* @throws IOException If an error occurs while writing to the underlying
* output.
***/
@Override public void write(String string, int offset, int length) throws IOException {
write(string.toCharArray(), offset, length);
}
/***
* Flushes the underlying output, writing all buffered output.
*
* @throws IOException If an error occurs while writing to the underlying
* output.
***/
@Override public void flush() throws IOException {
synchronized (lock) {
__output.flush();
}
}
/***
* Flushes the underlying output, writing all buffered output, but doesn't
* actually close the underlying stream. The underlying stream may still
* be used for communicating with the server and therefore is not closed.
*
* @throws IOException If an error occurs while writing to the underlying
* output or closing the Writer.
***/
@Override public void close() throws IOException {
synchronized (lock) {
if (__output == null) {
return;
}
if (__state == __LAST_WAS_CR_STATE) {
__output.write('\n');
} else if (__state != __LAST_WAS_NL_STATE) {
__output.write("\r\n");
}
__output.write(".\r\n");
__output.flush();
__output = null;
}
}
}

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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package aria.apache.commons.net.io;
import java.io.IOException;
import java.io.InputStream;
import java.io.PushbackInputStream;
import java.io.UnsupportedEncodingException;
/***
* This class wraps an input stream, replacing all occurrences
* of &lt;CR&gt;&lt;LF&gt; (carriage return followed by a linefeed),
* which is the NETASCII standard for representing a newline, with the
* local line separator representation. You would use this class to
* implement ASCII file transfers requiring conversion from NETASCII.
*
*
***/
public final class FromNetASCIIInputStream extends PushbackInputStream {
static final boolean _noConversionRequired;
static final String _lineSeparator;
static final byte[] _lineSeparatorBytes;
static {
_lineSeparator = System.getProperty("line.separator");
_noConversionRequired = _lineSeparator.equals("\r\n");
try {
_lineSeparatorBytes = _lineSeparator.getBytes("US-ASCII");
} catch (UnsupportedEncodingException e) {
throw new RuntimeException("Broken JVM - cannot find US-ASCII charset!", e);
}
}
private int __length = 0;
/***
* Returns true if the NetASCII line separator differs from the system
* line separator, false if they are the same. This method is useful
* to determine whether or not you need to instantiate a
* FromNetASCIIInputStream object.
*
* @return True if the NETASCII line separator differs from the local
* system line separator, false if they are the same.
***/
public static final boolean isConversionRequired() {
return !_noConversionRequired;
}
/***
* Creates a FromNetASCIIInputStream instance that wraps an existing
* InputStream.
* @param input the stream to wrap
***/
public FromNetASCIIInputStream(InputStream input) {
super(input, _lineSeparatorBytes.length + 1);
}
private int __read() throws IOException {
int ch;
ch = super.read();
if (ch == '\r') {
ch = super.read();
if (ch == '\n') {
unread(_lineSeparatorBytes);
ch = super.read();
// This is a kluge for read(byte[], ...) to read the right amount
--__length;
} else {
if (ch != -1) {
unread(ch);
}
return '\r';
}
}
return ch;
}
/***
* Reads and returns the next byte in the stream. If the end of the
* message has been reached, returns -1. Note that a call to this method
* may result in multiple reads from the underlying input stream in order
* to convert NETASCII line separators to the local line separator format.
* This is transparent to the programmer and is only mentioned for
* completeness.
*
* @return The next character in the stream. Returns -1 if the end of the
* stream has been reached.
* @throws IOException If an error occurs while reading the underlying
* stream.
***/
@Override public int read() throws IOException {
if (_noConversionRequired) {
return super.read();
}
return __read();
}
/***
* Reads the next number of bytes from the stream into an array and
* returns the number of bytes read. Returns -1 if the end of the
* stream has been reached.
*
* @param buffer The byte array in which to store the data.
* @return The number of bytes read. Returns -1 if the
* end of the message has been reached.
* @throws IOException If an error occurs in reading the underlying
* stream.
***/
@Override public int read(byte buffer[]) throws IOException {
return read(buffer, 0, buffer.length);
}
/***
* Reads the next number of bytes from the stream into an array and returns
* the number of bytes read. Returns -1 if the end of the
* message has been reached. The characters are stored in the array
* starting from the given offset and up to the length specified.
*
* @param buffer The byte array in which to store the data.
* @param offset The offset into the array at which to start storing data.
* @param length The number of bytes to read.
* @return The number of bytes read. Returns -1 if the
* end of the stream has been reached.
* @throws IOException If an error occurs while reading the underlying
* stream.
***/
@Override public int read(byte buffer[], int offset, int length) throws IOException {
if (_noConversionRequired) {
return super.read(buffer, offset, length);
}
if (length < 1) {
return 0;
}
int ch, off;
ch = available();
__length = (length > ch ? ch : length);
// If nothing is available, block to read only one character
if (__length < 1) {
__length = 1;
}
if ((ch = __read()) == -1) {
return -1;
}
off = offset;
do {
buffer[offset++] = (byte) ch;
} while (--__length > 0 && (ch = __read()) != -1);
return (offset - off);
}
// PushbackInputStream in JDK 1.1.3 returns the wrong thing
// TODO - can we delete this override now?
/***
* Returns the number of bytes that can be read without blocking EXCEPT
* when newline conversions have to be made somewhere within the
* available block of bytes. In other words, you really should not
* rely on the value returned by this method if you are trying to avoid
* blocking.
***/
@Override public int available() throws IOException {
if (in == null) {
throw new IOException("Stream closed");
}
return (buf.length - pos) + in.available();
}
}

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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package aria.apache.commons.net.io;
import java.io.FilterOutputStream;
import java.io.IOException;
import java.io.OutputStream;
/***
* This class wraps an output stream, replacing all occurrences
* of &lt;CR&gt;&lt;LF&gt; (carriage return followed by a linefeed),
* which is the NETASCII standard for representing a newline, with the
* local line separator representation. You would use this class to
* implement ASCII file transfers requiring conversion from NETASCII.
* <p>
* Because of the translation process, a call to <code>flush()</code> will
* not flush the last byte written if that byte was a carriage
* return. A call to {@link #close close() }, however, will
* flush the carriage return.
*
*
***/
public final class FromNetASCIIOutputStream extends FilterOutputStream {
private boolean __lastWasCR;
/***
* Creates a FromNetASCIIOutputStream instance that wraps an existing
* OutputStream.
*
* @param output The OutputStream to wrap.
***/
public FromNetASCIIOutputStream(OutputStream output) {
super(output);
__lastWasCR = false;
}
private void __write(int ch) throws IOException {
switch (ch) {
case '\r':
__lastWasCR = true;
// Don't write anything. We need to see if next one is linefeed
break;
case '\n':
if (__lastWasCR) {
out.write(FromNetASCIIInputStream._lineSeparatorBytes);
__lastWasCR = false;
break;
}
__lastWasCR = false;
out.write('\n');
break;
default:
if (__lastWasCR) {
out.write('\r');
__lastWasCR = false;
}
out.write(ch);
break;
}
}
/***
* Writes a byte to the stream. Note that a call to this method
* might not actually write a byte to the underlying stream until a
* subsequent character is written, from which it can be determined if
* a NETASCII line separator was encountered.
* This is transparent to the programmer and is only mentioned for
* completeness.
*
* @param ch The byte to write.
* @throws IOException If an error occurs while writing to the underlying
* stream.
***/
@Override public synchronized void write(int ch) throws IOException {
if (FromNetASCIIInputStream._noConversionRequired) {
out.write(ch);
return;
}
__write(ch);
}
/***
* Writes a byte array to the stream.
*
* @param buffer The byte array to write.
* @throws IOException If an error occurs while writing to the underlying
* stream.
***/
@Override public synchronized void write(byte buffer[]) throws IOException {
write(buffer, 0, buffer.length);
}
/***
* Writes a number of bytes from a byte array to the stream starting from
* a given offset.
*
* @param buffer The byte array to write.
* @param offset The offset into the array at which to start copying data.
* @param length The number of bytes to write.
* @throws IOException If an error occurs while writing to the underlying
* stream.
***/
@Override public synchronized void write(byte buffer[], int offset, int length)
throws IOException {
if (FromNetASCIIInputStream._noConversionRequired) {
// FilterOutputStream method is very slow.
//super.write(buffer, offset, length);
out.write(buffer, offset, length);
return;
}
while (length-- > 0) {
__write(buffer[offset++]);
}
}
/***
* Closes the stream, writing all pending data.
*
* @throws IOException If an error occurs while closing the stream.
***/
@Override public synchronized void close() throws IOException {
if (FromNetASCIIInputStream._noConversionRequired) {
super.close();
return;
}
if (__lastWasCR) {
out.write('\r');
}
super.close();
}
}

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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package aria.apache.commons.net.io;
import java.io.FilterInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.Socket;
/***
* This class wraps an input stream, storing a reference to its originating
* socket. When the stream is closed, it will also close the socket
* immediately afterward. This class is useful for situations where you
* are dealing with a stream originating from a socket, but do not have
* a reference to the socket, and want to make sure it closes when the
* stream closes.
*
*
* @see SocketOutputStream
***/
public class SocketInputStream extends FilterInputStream {
private final Socket __socket;
/***
* Creates a SocketInputStream instance wrapping an input stream and
* storing a reference to a socket that should be closed on closing
* the stream.
*
* @param socket The socket to close on closing the stream.
* @param stream The input stream to wrap.
***/
public SocketInputStream(Socket socket, InputStream stream) {
super(stream);
__socket = socket;
}
/***
* Closes the stream and immediately afterward closes the referenced
* socket.
*
* @throws IOException If there is an error in closing the stream
* or socket.
***/
@Override public void close() throws IOException {
super.close();
__socket.close();
}
}

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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package aria.apache.commons.net.io;
import java.io.FilterOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.net.Socket;
/***
* This class wraps an output stream, storing a reference to its originating
* socket. When the stream is closed, it will also close the socket
* immediately afterward. This class is useful for situations where you
* are dealing with a stream originating from a socket, but do not have
* a reference to the socket, and want to make sure it closes when the
* stream closes.
*
*
* @see SocketInputStream
***/
public class SocketOutputStream extends FilterOutputStream {
private final Socket __socket;
/***
* Creates a SocketOutputStream instance wrapping an output stream and
* storing a reference to a socket that should be closed on closing
* the stream.
*
* @param socket The socket to close on closing the stream.
* @param stream The input stream to wrap.
***/
public SocketOutputStream(Socket socket, OutputStream stream) {
super(stream);
__socket = socket;
}
/***
* Writes a number of bytes from a byte array to the stream starting from
* a given offset. This method bypasses the equivalent method in
* FilterOutputStream because the FilterOutputStream implementation is
* very inefficient.
*
* @param buffer The byte array to write.
* @param offset The offset into the array at which to start copying data.
* @param length The number of bytes to write.
* @throws IOException If an error occurs while writing to the underlying
* stream.
***/
@Override public void write(byte buffer[], int offset, int length) throws IOException {
out.write(buffer, offset, length);
}
/***
* Closes the stream and immediately afterward closes the referenced
* socket.
*
* @throws IOException If there is an error in closing the stream
* or socket.
***/
@Override public void close() throws IOException {
super.close();
__socket.close();
}
}

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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package aria.apache.commons.net.io;
import java.io.FilterInputStream;
import java.io.IOException;
import java.io.InputStream;
/***
* This class wraps an input stream, replacing all singly occurring
* &lt;LF&gt; (linefeed) characters with &lt;CR&gt;&lt;LF&gt; (carriage return
* followed by linefeed), which is the NETASCII standard for representing
* a newline.
* You would use this class to implement ASCII file transfers requiring
* conversion to NETASCII.
*
*
***/
public final class ToNetASCIIInputStream extends FilterInputStream {
private static final int __NOTHING_SPECIAL = 0;
private static final int __LAST_WAS_CR = 1;
private static final int __LAST_WAS_NL = 2;
private int __status;
/***
* Creates a ToNetASCIIInputStream instance that wraps an existing
* InputStream.
*
* @param input The InputStream to wrap.
***/
public ToNetASCIIInputStream(InputStream input) {
super(input);
__status = __NOTHING_SPECIAL;
}
/***
* Reads and returns the next byte in the stream. If the end of the
* message has been reached, returns -1.
*
* @return The next character in the stream. Returns -1 if the end of the
* stream has been reached.
* @throws IOException If an error occurs while reading the underlying
* stream.
***/
@Override public int read() throws IOException {
int ch;
if (__status == __LAST_WAS_NL) {
__status = __NOTHING_SPECIAL;
return '\n';
}
ch = in.read();
switch (ch) {
case '\r':
__status = __LAST_WAS_CR;
return '\r';
case '\n':
if (__status != __LAST_WAS_CR) {
__status = __LAST_WAS_NL;
return '\r';
}
//$FALL-THROUGH$
default:
__status = __NOTHING_SPECIAL;
return ch;
}
// statement not reached
//return ch;
}
/***
* Reads the next number of bytes from the stream into an array and
* returns the number of bytes read. Returns -1 if the end of the
* stream has been reached.
*
* @param buffer The byte array in which to store the data.
* @return The number of bytes read. Returns -1 if the
* end of the message has been reached.
* @throws IOException If an error occurs in reading the underlying
* stream.
***/
@Override public int read(byte buffer[]) throws IOException {
return read(buffer, 0, buffer.length);
}
/***
* Reads the next number of bytes from the stream into an array and returns
* the number of bytes read. Returns -1 if the end of the
* message has been reached. The characters are stored in the array
* starting from the given offset and up to the length specified.
*
* @param buffer The byte array in which to store the data.
* @param offset The offset into the array at which to start storing data.
* @param length The number of bytes to read.
* @return The number of bytes read. Returns -1 if the
* end of the stream has been reached.
* @throws IOException If an error occurs while reading the underlying
* stream.
***/
@Override public int read(byte buffer[], int offset, int length) throws IOException {
int ch, off;
if (length < 1) {
return 0;
}
ch = available();
if (length > ch) {
length = ch;
}
// If nothing is available, block to read only one character
if (length < 1) {
length = 1;
}
if ((ch = read()) == -1) {
return -1;
}
off = offset;
do {
buffer[offset++] = (byte) ch;
} while (--length > 0 && (ch = read()) != -1);
return (offset - off);
}
/*** Returns false. Mark is not supported. ***/
@Override public boolean markSupported() {
return false;
}
@Override public int available() throws IOException {
int result;
result = in.available();
if (__status == __LAST_WAS_NL) {
return (result + 1);
}
return result;
}
}

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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package aria.apache.commons.net.io;
import java.io.FilterOutputStream;
import java.io.IOException;
import java.io.OutputStream;
/***
* This class wraps an output stream, replacing all singly occurring
* &lt;LF&gt; (linefeed) characters with &lt;CR&gt;&lt;LF&gt; (carriage return
* followed by linefeed), which is the NETASCII standard for representing
* a newline.
* You would use this class to implement ASCII file transfers requiring
* conversion to NETASCII.
*
*
***/
public final class ToNetASCIIOutputStream extends FilterOutputStream {
private boolean __lastWasCR;
/***
* Creates a ToNetASCIIOutputStream instance that wraps an existing
* OutputStream.
*
* @param output The OutputStream to wrap.
***/
public ToNetASCIIOutputStream(OutputStream output) {
super(output);
__lastWasCR = false;
}
/***
* Writes a byte to the stream. Note that a call to this method
* may result in multiple writes to the underlying input stream in order
* to convert naked newlines to NETASCII line separators.
* This is transparent to the programmer and is only mentioned for
* completeness.
*
* @param ch The byte to write.
* @throws IOException If an error occurs while writing to the underlying
* stream.
***/
@Override public synchronized void write(int ch) throws IOException {
switch (ch) {
case '\r':
__lastWasCR = true;
out.write('\r');
return;
case '\n':
if (!__lastWasCR) {
out.write('\r');
}
//$FALL-THROUGH$
default:
__lastWasCR = false;
out.write(ch);
return;
}
}
/***
* Writes a byte array to the stream.
*
* @param buffer The byte array to write.
* @throws IOException If an error occurs while writing to the underlying
* stream.
***/
@Override public synchronized void write(byte buffer[]) throws IOException {
write(buffer, 0, buffer.length);
}
/***
* Writes a number of bytes from a byte array to the stream starting from
* a given offset.
*
* @param buffer The byte array to write.
* @param offset The offset into the array at which to start copying data.
* @param length The number of bytes to write.
* @throws IOException If an error occurs while writing to the underlying
* stream.
***/
@Override public synchronized void write(byte buffer[], int offset, int length)
throws IOException {
while (length-- > 0) {
write(buffer[offset++]);
}
}
}

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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package aria.apache.commons.net.io;
import java.io.Closeable;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.Reader;
import java.io.Writer;
import java.net.Socket;
/***
* The Util class cannot be instantiated and stores short static convenience
* methods that are often quite useful.
*
*
* @see CopyStreamException
* @see CopyStreamListener
* @see CopyStreamAdapter
***/
public final class Util {
/**
* The default buffer size ({@value}) used by
* {@link #copyStream copyStream } and {@link #copyReader copyReader}
* and by the copyReader/copyStream methods if a zero or negative buffer size is supplied.
*/
public static final int DEFAULT_COPY_BUFFER_SIZE = 1024;
// Cannot be instantiated
private Util() {
}
/***
* Copies the contents of an InputStream to an OutputStream using a
* copy buffer of a given size and notifies the provided
* CopyStreamListener of the progress of the copy operation by calling
* its bytesTransferred(long, int) method after each write to the
* destination. If you wish to notify more than one listener you should
* use a CopyStreamAdapter as the listener and register the additional
* listeners with the CopyStreamAdapter.
* <p>
* The contents of the InputStream are
* read until the end of the stream is reached, but neither the
* source nor the destination are closed. You must do this yourself
* outside of the method call. The number of bytes read/written is
* returned.
*
* @param source The source InputStream.
* @param dest The destination OutputStream.
* @param bufferSize The number of bytes to buffer during the copy.
* A zero or negative value means to use {@link #DEFAULT_COPY_BUFFER_SIZE}.
* @param streamSize The number of bytes in the stream being copied.
* Should be set to CopyStreamEvent.UNKNOWN_STREAM_SIZE if unknown.
* Not currently used (though it is passed to {@link CopyStreamListener#bytesTransferred(long, int, long)}
* @param listener The CopyStreamListener to notify of progress. If
* this parameter is null, notification is not attempted.
* @param flush Whether to flush the output stream after every
* write. This is necessary for interactive sessions that rely on
* buffered streams. If you don't flush, the data will stay in
* the stream buffer.
* @return number of bytes read/written
* @throws CopyStreamException If an error occurs while reading from the
* source or writing to the destination. The CopyStreamException
* will contain the number of bytes confirmed to have been
* transferred before an
* IOException occurred, and it will also contain the IOException
* that caused the error. These values can be retrieved with
* the CopyStreamException getTotalBytesTransferred() and
* getIOException() methods.
***/
public static final long copyStream(InputStream source, OutputStream dest, int bufferSize,
long streamSize, CopyStreamListener listener, boolean flush) throws CopyStreamException {
int numBytes;
long total = 0;
byte[] buffer = new byte[bufferSize > 0 ? bufferSize : DEFAULT_COPY_BUFFER_SIZE];
try {
while (!Thread.currentThread().isInterrupted() && (numBytes = source.read(buffer)) != -1) {
// Technically, some read(byte[]) methods may return 0 and we cannot
// accept that as an indication of EOF.
if (numBytes == 0) {
int singleByte = source.read();
if (singleByte < 0) {
break;
}
dest.write(singleByte);
if (flush) {
dest.flush();
}
++total;
if (listener != null) {
listener.bytesTransferred(total, 1, streamSize);
}
continue;
}
dest.write(buffer, 0, numBytes);
if (flush) {
dest.flush();
}
total += numBytes;
if (listener != null) {
listener.bytesTransferred(total, numBytes, streamSize);
}
}
} catch (IOException e) {
throw new CopyStreamException("IOException caught while copying.", total, e);
}
return total;
}
/***
* Copies the contents of an InputStream to an OutputStream using a
* copy buffer of a given size and notifies the provided
* CopyStreamListener of the progress of the copy operation by calling
* its bytesTransferred(long, int) method after each write to the
* destination. If you wish to notify more than one listener you should
* use a CopyStreamAdapter as the listener and register the additional
* listeners with the CopyStreamAdapter.
* <p>
* The contents of the InputStream are
* read until the end of the stream is reached, but neither the
* source nor the destination are closed. You must do this yourself
* outside of the method call. The number of bytes read/written is
* returned.
*
* @param source The source InputStream.
* @param dest The destination OutputStream.
* @param bufferSize The number of bytes to buffer during the copy.
* A zero or negative value means to use {@link #DEFAULT_COPY_BUFFER_SIZE}.
* @param streamSize The number of bytes in the stream being copied.
* Should be set to CopyStreamEvent.UNKNOWN_STREAM_SIZE if unknown.
* Not currently used (though it is passed to {@link CopyStreamListener#bytesTransferred(long, int, long)}
* @param listener The CopyStreamListener to notify of progress. If
* this parameter is null, notification is not attempted.
* @return number of bytes read/written
* @throws CopyStreamException If an error occurs while reading from the
* source or writing to the destination. The CopyStreamException
* will contain the number of bytes confirmed to have been
* transferred before an
* IOException occurred, and it will also contain the IOException
* that caused the error. These values can be retrieved with
* the CopyStreamException getTotalBytesTransferred() and
* getIOException() methods.
***/
public static final long copyStream(InputStream source, OutputStream dest, int bufferSize,
long streamSize, CopyStreamListener listener) throws CopyStreamException {
return copyStream(source, dest, bufferSize, streamSize, listener, true);
}
/***
* Copies the contents of an InputStream to an OutputStream using a
* copy buffer of a given size. The contents of the InputStream are
* read until the end of the stream is reached, but neither the
* source nor the destination are closed. You must do this yourself
* outside of the method call. The number of bytes read/written is
* returned.
*
* @param source The source InputStream.
* @param dest The destination OutputStream.
* @param bufferSize The number of bytes to buffer during the copy.
* A zero or negative value means to use {@link #DEFAULT_COPY_BUFFER_SIZE}.
* @return The number of bytes read/written in the copy operation.
* @throws CopyStreamException If an error occurs while reading from the
* source or writing to the destination. The CopyStreamException
* will contain the number of bytes confirmed to have been
* transferred before an
* IOException occurred, and it will also contain the IOException
* that caused the error. These values can be retrieved with
* the CopyStreamException getTotalBytesTransferred() and
* getIOException() methods.
***/
public static final long copyStream(InputStream source, OutputStream dest, int bufferSize)
throws CopyStreamException {
return copyStream(source, dest, bufferSize, CopyStreamEvent.UNKNOWN_STREAM_SIZE, null);
}
/***
* Same as <code> copyStream(source, dest, DEFAULT_COPY_BUFFER_SIZE); </code>
* @param source where to copy from
* @param dest where to copy to
* @return number of bytes copied
* @throws CopyStreamException on error
***/
public static final long copyStream(InputStream source, OutputStream dest)
throws CopyStreamException {
return copyStream(source, dest, DEFAULT_COPY_BUFFER_SIZE);
}
/***
* Copies the contents of a Reader to a Writer using a
* copy buffer of a given size and notifies the provided
* CopyStreamListener of the progress of the copy operation by calling
* its bytesTransferred(long, int) method after each write to the
* destination. If you wish to notify more than one listener you should
* use a CopyStreamAdapter as the listener and register the additional
* listeners with the CopyStreamAdapter.
* <p>
* The contents of the Reader are
* read until its end is reached, but neither the source nor the
* destination are closed. You must do this yourself outside of the
* method call. The number of characters read/written is returned.
*
* @param source The source Reader.
* @param dest The destination writer.
* @param bufferSize The number of characters to buffer during the copy.
* A zero or negative value means to use {@link #DEFAULT_COPY_BUFFER_SIZE}.
* @param streamSize The number of characters in the stream being copied.
* Should be set to CopyStreamEvent.UNKNOWN_STREAM_SIZE if unknown.
* Not currently used (though it is passed to {@link CopyStreamListener#bytesTransferred(long, int, long)}
* @param listener The CopyStreamListener to notify of progress. If
* this parameter is null, notification is not attempted.
* @return The number of characters read/written in the copy operation.
* @throws CopyStreamException If an error occurs while reading from the
* source or writing to the destination. The CopyStreamException
* will contain the number of bytes confirmed to have been
* transferred before an
* IOException occurred, and it will also contain the IOException
* that caused the error. These values can be retrieved with
* the CopyStreamException getTotalBytesTransferred() and
* getIOException() methods.
***/
public static final long copyReader(Reader source, Writer dest, int bufferSize, long streamSize,
CopyStreamListener listener) throws CopyStreamException {
int numChars;
long total = 0;
char[] buffer = new char[bufferSize > 0 ? bufferSize : DEFAULT_COPY_BUFFER_SIZE];
try {
while ((numChars = source.read(buffer)) != -1) {
// Technically, some read(char[]) methods may return 0 and we cannot
// accept that as an indication of EOF.
if (numChars == 0) {
int singleChar = source.read();
if (singleChar < 0) {
break;
}
dest.write(singleChar);
dest.flush();
++total;
if (listener != null) {
listener.bytesTransferred(total, 1, streamSize);
}
continue;
}
dest.write(buffer, 0, numChars);
dest.flush();
total += numChars;
if (listener != null) {
listener.bytesTransferred(total, numChars, streamSize);
}
}
} catch (IOException e) {
throw new CopyStreamException("IOException caught while copying.", total, e);
}
return total;
}
/***
* Copies the contents of a Reader to a Writer using a
* copy buffer of a given size. The contents of the Reader are
* read until its end is reached, but neither the source nor the
* destination are closed. You must do this yourself outside of the
* method call. The number of characters read/written is returned.
*
* @param source The source Reader.
* @param dest The destination writer.
* @param bufferSize The number of characters to buffer during the copy.
* A zero or negative value means to use {@link #DEFAULT_COPY_BUFFER_SIZE}.
* @return The number of characters read/written in the copy operation.
* @throws CopyStreamException If an error occurs while reading from the
* source or writing to the destination. The CopyStreamException
* will contain the number of bytes confirmed to have been
* transferred before an
* IOException occurred, and it will also contain the IOException
* that caused the error. These values can be retrieved with
* the CopyStreamException getTotalBytesTransferred() and
* getIOException() methods.
***/
public static final long copyReader(Reader source, Writer dest, int bufferSize)
throws CopyStreamException {
return copyReader(source, dest, bufferSize, CopyStreamEvent.UNKNOWN_STREAM_SIZE, null);
}
/***
* Same as <code> copyReader(source, dest, DEFAULT_COPY_BUFFER_SIZE); </code>
* @param source where to copy from
* @param dest where to copy to
* @return number of bytes copied
* @throws CopyStreamException on error
***/
public static final long copyReader(Reader source, Writer dest) throws CopyStreamException {
return copyReader(source, dest, DEFAULT_COPY_BUFFER_SIZE);
}
/**
* Closes the object quietly, catching rather than throwing IOException.
* Intended for use from finally blocks.
*
* @param closeable the object to close, may be {@code null}
* @since 3.0
*/
public static void closeQuietly(Closeable closeable) {
if (closeable != null) {
try {
closeable.close();
} catch (IOException e) {
// Ignored
}
}
}
/**
* Closes the socket quietly, catching rather than throwing IOException.
* Intended for use from finally blocks.
*
* @param socket the socket to close, may be {@code null}
* @since 3.0
*/
public static void closeQuietly(Socket socket) {
if (socket != null) {
try {
socket.close();
} catch (IOException e) {
// Ignored
}
}
}
}

21
AriaFtpPlug/src/main/java/aria/apache/commons/net/io/package-info.java Normal file
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@@ -0,0 +1,21 @@
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
* Utility classes for IO support.
*/
package aria.apache.commons.net.io;