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17 package org.apache.logging.log4j.core.appender.rolling.helper;
18
19 import java.io.File;
20 import java.io.FileInputStream;
21 import java.io.FileOutputStream;
22 import java.io.IOException;
23
24 import java.util.zip.ZipEntry;
25 import java.util.zip.ZipOutputStream;
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31 public final class ZipCompressAction extends AbstractAction {
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33 private static final int BUF_SIZE = 8102;
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38 private final File source;
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43 private final File destination;
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48 private final boolean deleteSource;
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58 public ZipCompressAction(final File source, final File destination, final boolean deleteSource) {
59 if (source == null) {
60 throw new NullPointerException("source");
61 }
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63 if (destination == null) {
64 throw new NullPointerException("destination");
65 }
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67 this.source = source;
68 this.destination = destination;
69 this.deleteSource = deleteSource;
70 }
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78 @Override
79 public boolean execute() throws IOException {
80 return execute(source, destination, deleteSource);
81 }
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93 public static boolean execute(final File source, final File destination, final boolean deleteSource)
94 throws IOException {
95 if (source.exists()) {
96 FileInputStream fis = new FileInputStream(source);
97 FileOutputStream fos = new FileOutputStream(destination);
98 ZipOutputStream zos = new ZipOutputStream(fos);
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100 ZipEntry zipEntry = new ZipEntry(source.getName());
101 zos.putNextEntry(zipEntry);
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103 byte[] inbuf = new byte[BUF_SIZE];
104 int n;
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106 while ((n = fis.read(inbuf)) != -1) {
107 zos.write(inbuf, 0, n);
108 }
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110 zos.close();
111 fis.close();
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113 if (deleteSource && !source.delete()) {
114 LOGGER.warn("Unable to delete " + source.toString() + '.');
115 }
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117 return true;
118 }
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120 return false;
121 }
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128 @Override
129 protected void reportException(final Exception ex) {
130 LOGGER.warn("Exception during compression of '" + source.toString() + "'.", ex);
131 }
132 }