    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    }