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/**
* Copyright 2016 [ZTE] and others.
*
* Licensed 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 org.openo.commontosca.catalog.common;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.BufferedInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.util.zip.CRC32;
import java.util.zip.CheckedOutputStream;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;
public class ZipCompressor {
public static final Logger LOG = LoggerFactory.getLogger(ZipCompressor.class);
static final int BUFFER = 8192;
private File zipFile;
public ZipCompressor(String pathName) {
zipFile = new File(pathName);
}
/**
* compress file according several path.
* @param pathName file path name
*/
public void compress(String... pathName) {
ZipOutputStream out = null;
try {
FileOutputStream fileOutputStream = new FileOutputStream(zipFile);
CheckedOutputStream cos = new CheckedOutputStream(fileOutputStream, new CRC32());
out = new ZipOutputStream(cos);
String basedir = "";
for (int i = 0; i < pathName.length; i++) {
compress(new File(pathName[i]), out, basedir);
}
out.close();
} catch (Exception e1) {
throw new RuntimeException(e1);
}
}
/**
* compress file according file path.
* @param srcPathName file path name
*/
public void compress(String srcPathName) {
File file = new File(srcPathName);
if (!file.exists()) {
throw new RuntimeException(srcPathName + "not exist！");
}
try {
FileOutputStream fileOutputStream = new FileOutputStream(zipFile);
CheckedOutputStream cos = new CheckedOutputStream(fileOutputStream, new CRC32());
ZipOutputStream out = new ZipOutputStream(cos);
String basedir = "";
compress(file, out, basedir);
out.close();
} catch (Exception e1) {
throw new RuntimeException(e1);
}
}
private void compress(File file, ZipOutputStream out, String basedir) {
if (file.isDirectory()) {
System.out.println("compress：" + basedir + file.getName());
this.compressDirectory(file, out, basedir);
} else {
System.out.println("compress：" + basedir + file.getName());
this.compressFile(file, out, basedir);
}
}
private void compressDirectory(File dir, ZipOutputStream out, String basedir) {
if (!dir.exists()) {
return;
}
File[] files = dir.listFiles();
for (int i = 0; i < files.length; i++) {
compress(files[i], out, basedir + dir.getName() + "/");
}
}
private void compressFile(File file, ZipOutputStream out, String basedir) {
if (!file.exists()) {
return;
}
try {
byte data[] = new byte[BUFFER];
BufferedInputStream bis = new BufferedInputStream(new FileInputStream(file));
ZipEntry entry = new ZipEntry(basedir + file.getName());
out.putNextEntry(entry);
int count;
while ((count = bis.read(data, 0, BUFFER)) != -1) {
out.write(data, 0, count);
}
bis.close();
} catch (Exception e1) {
throw new RuntimeException(e1);
}
}
}
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