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/*-
* ============LICENSE_START=======================================================
* SDC
* ================================================================================
* Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
* ================================================================================
* 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.
* ============LICENSE_END=========================================================
*/
package org.openecomp.sdc.common.util;
import org.apache.commons.io.output.ByteArrayOutputStream;
import org.openecomp.sdc.common.log.wrappers.Logger;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.HashMap;
import java.util.Map;
import java.util.zip.ZipEntry;
import java.util.zip.ZipInputStream;
import java.util.zip.ZipOutputStream;
public class ZipUtil {
private static Logger log = Logger.getLogger(ZipUtil.class.getName());
private ZipUtil() {
}
public static Map<String, byte[]> readZip(byte[] zipAsBytes) {
ZipInputStream zis = null;
zis = new ZipInputStream(new ByteArrayInputStream(zipAsBytes));
return readZip(zis);
}
public static Map<String, byte[]> readZip(ZipInputStream zis) {
Map<String, byte[]> fileNameToByteArray = new HashMap<>();
byte[] buffer = new byte[1024];
try {
// get the zipped file list entry
ZipEntry ze = zis.getNextEntry();
while (ze != null) {
String fileName = ze.getName();
if (!ze.isDirectory()) {
ByteArrayOutputStream os = new ByteArrayOutputStream();
try {
int len;
while ((len = zis.read(buffer)) > 0) {
os.write(buffer, 0, len);
}
fileNameToByteArray.put(fileName, os.toByteArray());
} finally {
if (os != null) {
os.close();
}
}
}
ze = zis.getNextEntry();
}
zis.closeEntry();
zis.close();
} catch (IOException ex) {
log.info("close Byte stream failed - {}" , ex);
return null;
} finally {
if (zis != null) {
try {
zis.closeEntry();
zis.close();
} catch (IOException e) {
// TODO: add log
}
}
}
return fileNameToByteArray;
}
public static void main(String[] args) {
String zipFileName = "/src/test/resources/config/config.zip";
zipFileName = "C:\\Git_work\\D2-SDnC\\catalog-be\\src\\test\\resources\\config\\config.zip";
Path path = Paths.get(zipFileName);
try {
byte[] zipAsBytes = Files.readAllBytes(path);
// encode to base
ZipUtil.readZip(zipAsBytes);
} catch (IOException e) {
log.info("close Byte stream failed - {}" , e);
}
}
public static byte[] zipBytes(byte[] input) throws IOException {
ByteArrayOutputStream baos = new ByteArrayOutputStream();
ZipOutputStream zos = new ZipOutputStream(baos);
ZipEntry entry = new ZipEntry("zip");
entry.setSize(input.length);
zos.putNextEntry(entry);
zos.write(input);
zos.closeEntry();
zos.close();
return baos.toByteArray();
}
public static byte[] unzip(byte[] zipped) {
ZipInputStream zipinputstream = null;
ByteArrayOutputStream outputStream = null;
try {
byte[] buf = new byte[1024];
zipinputstream = new ZipInputStream(new ByteArrayInputStream(zipped));
ZipEntry zipentry = zipinputstream.getNextEntry();
outputStream = new ByteArrayOutputStream();
int n;
while ((n = zipinputstream.read(buf, 0, 1024)) > -1) {
outputStream.write(buf, 0, n);
}
return outputStream.toByteArray();
} catch (Exception e) {
throw new IllegalStateException("Can't unzip input stream", e);
} finally {
if (outputStream != null) {
try {
outputStream.close();
} catch (IOException e) {
log.debug("Failed to close output stream", e);
}
}
if (zipinputstream != null) {
try {
zipinputstream.closeEntry();
zipinputstream.close();
} catch (IOException e) {
log.debug("Failed to close zip input stream", e);
}
}
}
}
}
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