| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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.apache.sling.installer.core.impl; |
| |
| import java.io.File; |
| import java.io.FileInputStream; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.util.Dictionary; |
| import java.util.Enumeration; |
| import java.util.Hashtable; |
| |
| /** |
| * ResourceData just contains the data of a resource |
| * - input stream |
| * - dictionary |
| * |
| */ |
| public class ResourceData { |
| |
| /** |
| * Create an internal resource. |
| * @throws IOException if something is wrong |
| */ |
| public static ResourceData create( |
| final InputStream stream, |
| final Dictionary<String, Object> props) |
| throws IOException { |
| if ( stream == null ) { |
| final Dictionary<String, Object> result = new Hashtable<String, Object>(); |
| final Enumeration<String> e = props.keys(); |
| while (e.hasMoreElements()) { |
| final String key = e.nextElement(); |
| result.put(key, props.get(key)); |
| } |
| return new ResourceData(result, null); |
| |
| } |
| final File dataFile = FileDataStore.SHARED.createNewDataFile(stream, |
| null, null, null); |
| return new ResourceData(null, dataFile); |
| } |
| |
| private final Dictionary<String, Object> dictionary; |
| |
| /** The data file (if copied) */ |
| private final File dataFile; |
| |
| private ResourceData(final Dictionary<String, Object> dict, |
| final File dataFile) { |
| this.dictionary = dict; |
| this.dataFile = dataFile; |
| } |
| |
| /** |
| * Copy given Dictionary |
| */ |
| public Dictionary<String, Object> getDictionary() { |
| return this.dictionary; |
| } |
| |
| /** |
| * Return the file |
| */ |
| public InputStream getInputStream() throws IOException { |
| if ( this.dataFile != null ) { |
| return new FileInputStream(this.dataFile); |
| } |
| return null; |
| } |
| |
| public String getDigest(final String url, String digest) throws IOException { |
| if ( this.dictionary != null ) { |
| return digest != null ? digest : FileDataStore.computeDigest(this.dictionary); |
| } |
| if ( digest == null ) { |
| digest = FileDataStore.computeDigest(this.dataFile); |
| } |
| FileDataStore.SHARED.updateDigestCache(url, digest); |
| return digest; |
| |
| } |
| |
| public File getDataFile() { |
| return this.dataFile; |
| } |
| } |