nokiav2/driver/src/main/java/org/onap/vfc/nfvo/driver/vnfm/svnfm/nokia/packagetransformer/OnapVnfPackageBuilder.java

   1 /*
   2  * Copyright 2016-2017, Nokia Corporation
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  *     http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16
  17 package org.onap.vfc.nfvo.driver.vnfm.svnfm.nokia.packagetransformer;
  18
  19 import com.google.common.io.ByteStreams;
  20 import java.io.ByteArrayInputStream;
  21 import java.io.ByteArrayOutputStream;
  22 import java.io.IOException;
  23 import java.io.InputStream;
  24 import java.nio.charset.StandardCharsets;
  25 import java.util.Map;
  26 import java.util.zip.ZipEntry;
  27 import java.util.zip.ZipOutputStream;
  28
  29 import static org.onap.vfc.nfvo.driver.vnfm.svnfm.nokia.util.SystemFunctions.systemFunctions;
  30 import static org.onap.vfc.nfvo.driver.vnfm.svnfm.nokia.vnfm.CatalogManager.getFileInZip;
  31 import static org.onap.vfc.nfvo.driver.vnfm.svnfm.nokia.vnfm.CatalogManager.getVnfdLocation;
  32
  33 /**
  34  * Transforms a CBAM package into an ONAP package
  35  */
  36
  37 public class OnapVnfPackageBuilder {
  38
  39     /**
  40      * Entry point for the command line package transformer
  41      *
  42      * @param args not used (required due to signature)
  43      */
  44     public static void main(String[] args) throws Exception {
  45         byte[] covert = new OnapVnfPackageBuilder().covert(systemFunctions().in(), SupportedOnapPackageVersions.V1TOSCA);
  46         systemFunctions().out().write(covert);
  47     }
  48
  49     /**
  50      * @param zip     the original CBAM package
  51      * @param version
  52      * @return the converted ONAP package
  53      */
  54     public byte[] covert(InputStream zip, SupportedOnapPackageVersions version) throws IOException {
  55         byte[] cbamVnfPackage = ByteStreams.toByteArray(zip);
  56         String vnfdLocation = getVnfdLocation(new ByteArrayInputStream(cbamVnfPackage));
  57         ByteArrayOutputStream vnfdContent = getFileInZip(new ByteArrayInputStream(cbamVnfPackage), vnfdLocation);
  58         byte[] cbamVnfdContent = vnfdContent.toByteArray();
  59         byte[] modifiedCbamPackage = new CbamVnfPackageBuilder().toModifiedCbamVnfPackage(cbamVnfPackage, vnfdLocation, new CbamVnfdBuilder().build(new String(cbamVnfdContent)));
  60         switch (version){
  61             case V1TOSCA:
  62             case V2TOSCA:
  63                 String onapVnfd = SupportedOnapPackageVersions.V2TOSCA == version ?
  64                         new OnapR2VnfdBuilder().toOnapVnfd(new String(cbamVnfdContent, StandardCharsets.UTF_8)) :
  65                         new OnapR1VnfdBuilder().toOnapVnfd(new String(cbamVnfdContent, StandardCharsets.UTF_8));
  66                 return buildNewOnapPackage(modifiedCbamPackage, onapVnfd);
  67             case V2HEAT:
  68             default:
  69                 Map<String, String> files = new OnapR2HeatPackageBuilder().processVnfd(new String(cbamVnfdContent));
  70                 return buildHeatOnapPackage(modifiedCbamPackage, files);
  71         }
  72
  73     }
  74
  75     private byte [] buildHeatOnapPackage(byte [] modifiedCbamPackage, Map<String, String> heatFiles) throws IOException {
  76         ByteArrayOutputStream result = new ByteArrayOutputStream();
  77         ZipOutputStream out = new ZipOutputStream(result);
  78         out.putNextEntry(new ZipEntry("Artifacts/Deployment/OTHER/cbam.package.zip"));
  79         out.write(modifiedCbamPackage);
  80         out.closeEntry();
  81         for (Map.Entry<String, String> file : heatFiles.entrySet()) {
  82             out.putNextEntry(new ZipEntry(file.getKey()));
  83             out.write(file.getValue().getBytes());
  84             out.closeEntry();
  85         }
  86         out.close();
  87         return result.toByteArray();
  88     }
  89
  90     private byte[] buildNewOnapPackage(byte[] modifiedCbamPackage, String onapVnfd) throws IOException {
  91         ByteArrayOutputStream result = new ByteArrayOutputStream();
  92         ZipOutputStream out = new ZipOutputStream(result);
  93         out.putNextEntry(new ZipEntry("Artifacts/Deployment/OTHER/cbam.package.zip"));
  94         out.write(modifiedCbamPackage);
  95         out.closeEntry();
  96         out.putNextEntry(new ZipEntry("TOSCA-Metadata/TOSCA.meta"));
  97         out.write(systemFunctions().loadFile("TOSCA.meta"));
  98         out.closeEntry();
  99         out.putNextEntry(new ZipEntry("MainServiceTemplate.yaml"));
 100         out.write(onapVnfd.getBytes());
 101         out.closeEntry();
 102         out.closeEntry();
 103         out.putNextEntry(new ZipEntry("MainServiceTemplate.mf"));
 104         out.write(systemFunctions().loadFile("MainServiceTemplate.mf"));
 105         out.closeEntry();
 106         out.close();
 107         return result.toByteArray();
 108     }
 109 }