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/*
* Copyright 2016-2017, Nokia Corporation
*
* 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.driver.vnfm.svnfm.nokia.packagetransformer;
import com.google.common.io.ByteStreams;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.nio.charset.StandardCharsets;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;
import static org.onap.vfc.nfvo.driver.vnfm.svnfm.nokia.util.SystemFunctions.systemFunctions;
import static org.onap.vfc.nfvo.driver.vnfm.svnfm.nokia.vnfm.CatalogManager.getFileInZip;
import static org.onap.vfc.nfvo.driver.vnfm.svnfm.nokia.vnfm.CatalogManager.getVnfdLocation;
/**
* Transforms a CBAM package into an ONAP package
*/
public class OnapVnfPackageBuilder {
/**
* Entry point for the command line package transformer
*
* @param args not used (required due to signature)
*/
public static void main(String[] args) throws Exception {
byte[] covert = new OnapVnfPackageBuilder().covert(systemFunctions().in(), SupportedOnapPackageVersions.V1);
systemFunctions().out().write(covert);
}
/**
* @param zip the original CBAM package
* @param version
* @return the converted ONAP package
*/
public byte[] covert(InputStream zip, SupportedOnapPackageVersions version) throws IOException {
byte[] cbamVnfPackage = ByteStreams.toByteArray(zip);
String vnfdLocation = getVnfdLocation(new ByteArrayInputStream(cbamVnfPackage));
ByteArrayOutputStream vnfdContent = getFileInZip(new ByteArrayInputStream(cbamVnfPackage), vnfdLocation);
byte[] cbamVnfdContent = vnfdContent.toByteArray();
String onapVnfd = SupportedOnapPackageVersions.V2 == version ?
new OnapR2VnfdBuilder().toOnapVnfd(new String(cbamVnfdContent, StandardCharsets.UTF_8)) :
new OnapR1VnfdBuilder().toOnapVnfd(new String(cbamVnfdContent, StandardCharsets.UTF_8));
byte[] modifiedCbamPackage = new CbamVnfPackageBuilder().toModifiedCbamVnfPackage(cbamVnfPackage, vnfdLocation, new CbamVnfdBuilder().build(new String(cbamVnfdContent)));
return buildNewOnapPackage(modifiedCbamPackage, onapVnfd);
}
private byte[] buildNewOnapPackage(byte[] modifiedCbamPackage, String onapVnfd) throws IOException {
ByteArrayOutputStream result = new ByteArrayOutputStream();
ZipOutputStream out = new ZipOutputStream(result);
out.putNextEntry(new ZipEntry("Artifacts/Deployment/OTHER/cbam.package.zip"));
out.write(modifiedCbamPackage);
out.closeEntry();
out.putNextEntry(new ZipEntry("TOSCA-Metadata/TOSCA.meta"));
out.write(systemFunctions().loadFile("TOSCA.meta"));
out.closeEntry();
out.putNextEntry(new ZipEntry("MainServiceTemplate.yaml"));
out.write(onapVnfd.getBytes());
out.closeEntry();
out.closeEntry();
out.putNextEntry(new ZipEntry("MainServiceTemplate.mf"));
out.write(systemFunctions().loadFile("MainServiceTemplate.mf"));
out.closeEntry();
out.close();
return result.toByteArray();
}
}
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