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add: file sorting

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This commit is contained in:
hyb1996
2017-09-30 19:12:07 +08:00
parent c114148502
commit be022f1c94
15 changed files with 532 additions and 212 deletions
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79
common/src/main/java/com/stardust/util/FileSorter.java
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@@ -1,9 +1,14 @@
package com.stardust.util;
import com.stardust.pio.PFile;
import java.io.File;
import java.text.Collator;
import java.util.Arrays;
import java.util.Collection;
import java.util.Collections;
import java.util.Comparator;
import java.util.List;
import java.util.Locale;
/**
@@ -12,16 +17,72 @@ import java.util.Locale;
public class FileSorter {
public static void sort(File[] files) {
public static final Comparator<File> NAME = new Comparator<File>() {
final Collator collator = Collator.getInstance();
Arrays.sort(files, new Comparator<File>() {
@Override
public int compare(File o1, File o2) {
if (o1.isDirectory() != o2.isDirectory())
return o1.isDirectory() ? Integer.MIN_VALUE : Integer.MAX_VALUE;
return collator.compare(o1.getName(), o2.getName());
}
});
@Override
public int compare(File o1, File o2) {
if (o1.isDirectory() != o2.isDirectory())
return o1.isDirectory() ? Integer.MIN_VALUE : Integer.MAX_VALUE;
return -collator.compare(o1.getName(), o2.getName());
}
};
public static final Comparator<File> DATE = new Comparator<File>() {
@Override
public int compare(File o1, File o2) {
return o1.lastModified() == o2.lastModified() ? 0 :
o1.lastModified() > o2.lastModified() ? 1 : -1;
}
};
public static final Comparator<File> TYPE = new Comparator<File>() {
@Override
public int compare(File o1, File o2) {
return -PFile.getExtension(o1.getName()).compareTo(PFile.getExtension(o2.getName()));
}
};
public static final Comparator<File> SIZE = new Comparator<File>() {
@Override
public int compare(File o1, File o2) {
return o1.length() == o2.length() ? 0 :
o1.length() < o2.length() ? 1 : -1;
}
};
public static void sort(File[] files, final Comparator<File> comparator, boolean ascending) {
if (ascending) {
Arrays.sort(files, comparator);
} else {
Arrays.sort(files, new Comparator<File>() {
@Override
public int compare(File o1, File o2) {
return comparator.compare(o2, o1);
}
});
}
}
public static void sort(File[] files, Comparator<File> comparator) {
sort(files, comparator, true);
}
public static void sort(List<? extends File> files, final Comparator<File> comparator, boolean ascending) {
if (ascending) {
Collections.sort(files, comparator);
} else {
Collections.sort(files, new Comparator<File>() {
@Override
public int compare(File o1, File o2) {
return comparator.compare(o2, o1);
}
});
}
}
public static void sort(List<? extends File> files, Comparator<File> comparator) {
sort(files, comparator, true);
}
}