2 * ============LICENSE_START========================================================================
3 * ONAP : ccsdk feature sdnr wt
4 * =================================================================================================
5 * Copyright (C) 2019 highstreet technologies GmbH Intellectual Property. All rights reserved.
6 * =================================================================================================
7 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
8 * in compliance with the License. You may obtain a copy of the License at
10 * http://www.apache.org/licenses/LICENSE-2.0
12 * Unless required by applicable law or agreed to in writing, software distributed under the License
13 * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
14 * or implied. See the License for the specific language governing permissions and limitations under
16 * ============LICENSE_END==========================================================================
18 package org.onap.ccsdk.features.sdnr.wt.helpserver.data;
21 import java.io.FileOutputStream;
22 import java.io.IOException;
23 import java.io.InputStream;
24 import java.io.OutputStream;
25 import java.util.Enumeration;
26 import org.osgi.framework.Bundle;
29 * Extract subtree with resources from Opendaylight/Karaf/OSGi bundle into Karaf directory<br>
31 * Reference: Eclipsezone @see
32 * <a href="https://www.eclipsezone.com/eclipse/forums/t101557.html">https://www.eclipszone.com</a> <br>
34 * Example for resource and directory path from karaf log. write resource: help/FAQ/0.4.0/README.md Create directories
35 * for: data/cache/com.highstreet.technologies.help/help/FAQ/0.4.0/README.md Open the file:
36 * data/cache/com.highstreet.technologies.help/help/FAQ/0.4.0/README.md Problem: Binary, JPG files => do not use buffer
39 * Hint: Verify with file manager the content of the bundle.jar file to see the location of the resources. There is no
40 * need to mark them via the classpath.
43 public class ExtactBundleResource {
46 * Extract resources from Karaf/OSGi bundle into karaf directory structure.
48 * @param bundle Karaf/OSGi bundle with resources
49 * @param filePrefix prefix in karaf file system for destination e.g. "data/cache/com.highstreet.technologies."
50 * @param ressoureRoot root name of ressources, with leading "/". e.g. "/help"
51 * @throws IOException In case of problems.
53 public static void copyBundleResoucesRecursively(Bundle bundle, String filePrefix, String ressoureRoot)
55 copyResourceTreeRecurse(bundle, filePrefix, bundle.getEntryPaths(ressoureRoot));
59 * Delete a file or a directory and its children.
61 * @param file The directory to delete.
62 * @throws IOException Exception when problem occurs during deleting the directory.
64 public static void deleteRecursively(File file) throws IOException {
66 if (file.isDirectory()) {
67 for (File childFile : file.listFiles()) {
68 deleteRecursively(childFile);
73 throw new IOException("No file " + file.getName());
78 // ------------- Private functions
81 * Recurse function to steps through the resource element tree
83 * @param b Bundle index for bundle with resourcs
88 private static void copyResourceTreeRecurse(Bundle b, String filePrefix, Enumeration<String> resource)
90 while (resource.hasMoreElements()) {
91 String name = resource.nextElement();
92 Enumeration<String> list = b.getEntryPaths(name);
94 copyResourceTreeRecurse(b, filePrefix, list);
97 File targetFile = new File(filePrefix + name);
98 targetFile.getParentFile().mkdirs();
100 try (InputStream in = b.getEntry(name).openStream();
101 OutputStream outStream = new FileOutputStream(targetFile);) {
104 while ((theInt = in.read()) >= 0) {
105 outStream.write(theInt);