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/*
* Copyright 2017 BOCO Corporation. CMCC Technologies Co., Ltd
*
* 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.onap.vfc.nfvo.emsdriver.commons.utils;
import org.apache.tools.zip.ZipEntry;
import org.apache.tools.zip.ZipFile;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.Enumeration;
public class UnZip {
protected String deCompressPath = null;
protected String zipFilePath = null;
/**
*
*/
public UnZip(String zipFilePath, String toPath) throws IOException {
File zipFile = new File(
new File(zipFilePath).getAbsolutePath());
if (!zipFile.isFile())
throw new IOException("not found file '" + zipFilePath + "'");
this.deCompressPath = toPath;
this.zipFilePath = zipFile.getAbsolutePath();
if (deCompressPath == null)
deCompressPath = zipFile.getParent() + File.separator;
else if (deCompressPath.charAt(deCompressPath.length() - 1) != '/')
deCompressPath = deCompressPath + File.separator;
}
/**
*
*/
public void deCompress() throws IOException {
ZipFile zipFile = new ZipFile(zipFilePath);
try {
Enumeration<ZipEntry> e = zipFile.getEntries();
for (ZipEntry entry; e.hasMoreElements(); ) {
entry = e.nextElement();
if (!entry.isDirectory()) {
String toPath = new StringBuffer(
deCompressPath).append(entry.getName()).toString();
toPath = toPath.replace("\\", File.separator);
deCompressFile(zipFile.getInputStream(entry), toPath);
}
}
} catch (IOException e) {
throw e;
} finally {
zipFile.close();
}
}
/**
*
*/
protected void deCompressFile(InputStream input, String toPath)
throws IOException {
byte byteBuf[] = new byte[2048];
String path = new File(toPath).getParent();
if (!new File(path).exists()) {
new File(path).mkdirs();
}
FileOutputStream output = new FileOutputStream(toPath, false);
try {
for (int count = 0; (count = input.read(byteBuf, 0, byteBuf.length)) != -1; )
output.write(byteBuf, 0, count);
} catch (IOException e) {
throw e;
} finally {
output.close();
input.close();
}
}
}
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