001 /*
002 * Licensed to the Apache Software Foundation (ASF) under one or more
003 * contributor license agreements. See the NOTICE file distributed with
004 * this work for additional information regarding copyright ownership.
005 * The ASF licenses this file to You under the Apache License, Version 2.0
006 * (the "License"); you may not use this file except in compliance with
007 * the License. You may obtain a copy of the License at
008 *
009 * http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the License for the specific language governing permissions and
015 * limitations under the License.
016 */
017
018 package org.apache.commons.jci.stores;
019
020 import java.util.ArrayList;
021 import java.util.HashMap;
022 import java.util.List;
023 import java.util.Map;
024 import org.apache.commons.logging.Log;
025 import org.apache.commons.logging.LogFactory;
026
027
028 /**
029 * Store just in memory
030 *
031 * @author tcurdt
032 */
033 public final class MemoryResourceStore implements ResourceStore {
034
035 private final Log log = LogFactory.getLog(MemoryResourceStore.class);
036
037 private final Map<String, byte[]> store = new HashMap<String, byte[]>();
038
039 public byte[] read( final String pResourceName ) {
040 log.debug("reading resource " + pResourceName);
041 return store.get(pResourceName);
042 }
043
044 public void write( final String pResourceName, final byte[] pData ) {
045 log.debug("writing resource " + pResourceName + "(" + pData.length + ")");
046 store.put(pResourceName, pData);
047 }
048
049 public void remove( final String pResourceName ) {
050 log.debug("removing resource " + pResourceName);
051 store.remove(pResourceName);
052 }
053
054 /**
055 * @deprecated
056 */
057 @Deprecated
058 public String[] list() {
059 if (store == null) {
060 return new String[0];
061 }
062 final List<String> names = new ArrayList<String>();
063
064 for (String name : store.keySet()) {
065 names.add(name);
066 }
067
068 return names.toArray(new String[store.size()]);
069 }
070
071 @Override
072 public String toString() {
073 return this.getClass().getName() + store.toString();
074 }
075 }