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/*
* ============LICENSE_START===================================================
* Copyright (c) 2017 Cloudify.co. 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.mso.aria;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.io.PrintStream;
import java.util.Map;
import java.util.List;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;
import org.openecomp.mso.adapters.vdu.VduModelInfo;
import org.openecomp.mso.adapters.vdu.VduArtifact;
import org.openecomp.mso.adapters.vdu.VduArtifact.ArtifactType;
import com.google.common.io.Files;
/**
* The purpose of this class is to create a CSAR byte array from Vdu inputs for the purpose
* of forwarding to a TOSCA orchestrator.
*
* @author DeWayne
*
*/
public class CSAR {
private static final String MANIFEST_FILENAME = "MANIFEST.MF";
private VduModelInfo vduModel;
public CSAR(VduModelInfo model){
this.vduModel = model;
}
/**
* Creates a byte array representation of a CSAR corresponding to the VduBlueprint arg in the
* constructor.
*
* @return
*/
public byte[] create() {
File dir = Files.createTempDir();
/**
* Create subdir
*/
File metadir = new File(dir.getAbsolutePath() + "/" + "TOSCA-Metadata");
if (!metadir.mkdir()) {
throw new RuntimeException("CSAR TOSCA-Metadata directory create failed");
}
/**
* Organize model info for consumption
*/
VduArtifact mainTemplate = null;
List<VduArtifact> extraFiles = null;
for(VduArtifact artifact: vduModel.getArtifacts()){
if( artifact.getType() == ArtifactType.MAIN_TEMPLATE ){
mainTemplate = artifact;
}
else{
extraFiles.add(artifact);
}
}
/**
* Write template files
*/
OutputStream ofs = null;
try {
ofs = new FileOutputStream(new File(dir, mainTemplate.getName()));
ofs.write(mainTemplate.getContent());
ofs.close();
/**
* Write other files
*/
if (extraFiles != null) {
for (VduArtifact artifact: extraFiles){
ofs = new FileOutputStream(new File(dir, artifact.getName()));
ofs.write(artifact.getContent());
ofs.close();
}
}
/**
* Create manifest
*/
PrintStream mfstream = new PrintStream(new File(metadir.getAbsolutePath() + "/" + MANIFEST_FILENAME));
mfstream.println("TOSCA-Meta-File-Version: 1.0");
mfstream.println("CSAR-Version: 1.1");
mfstream.println("Created-by: ONAP");
mfstream.println("Entry-Definitions: " + mainTemplate.getName());
mfstream.close();
/**
* ZIP it up
*/
ByteArrayOutputStream zipbytes = new ByteArrayOutputStream();
ZipOutputStream zos = new ZipOutputStream(zipbytes);
compressTree(zos, "", dir, dir);
zos.close();
return zipbytes.toByteArray();
} catch (Exception e) {
throw new RuntimeException("Failed to create CSAR: " + e.getMessage());
} finally {
/**
* Clean up tmpdir
*/
deleteDirectory(dir);
}
}
/**
* Private methods
*/
/**
* Compresses (ZIPs) a directory tree
*
* @param dir
* @throws IOException
*/
private void compressTree(ZipOutputStream zos, String path, File basedir, File dir) throws IOException {
if (!dir.isDirectory())
return;
for (File f : dir.listFiles()) {
if (f.isDirectory()) {
String newpath = path + f.getName() + "/";
ZipEntry entry = new ZipEntry(newpath);
zos.putNextEntry(entry);
zos.closeEntry();
compressTree(zos, newpath, basedir, f);
} else {
ZipEntry ze = new ZipEntry(
f.getAbsolutePath().substring(basedir.getAbsolutePath().length() + 1).replaceAll("\\\\", "/"));
zos.putNextEntry(ze);
// read the file and write to ZipOutputStream
FileInputStream fis = new FileInputStream(f);
byte[] buffer = new byte[1024];
int len;
while ((len = fis.read(buffer)) > 0) {
zos.write(buffer, 0, len);
}
zos.closeEntry();
fis.close();
}
}
}
private boolean deleteDirectory(File directory) {
if (directory.exists()) {
File[] files = directory.listFiles();
if (null != files) {
for (int i = 0; i < files.length; i++) {
if (files[i].isDirectory()) {
deleteDirectory(files[i]);
} else {
files[i].delete();
}
}
}
}
return (directory.delete());
}
}
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