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 package org.apache.camel.converter.stream;
018
019 import java.io.IOException;
020 import java.io.OutputStream;
021 import java.io.StringReader;
022
023 import org.apache.camel.StreamCache;
024 import org.apache.commons.logging.Log;
025 import org.apache.commons.logging.LogFactory;
026
027 /**
028 * {@link org.apache.camel.StreamCache} implementation for Cache the Reader {@link java.io.Reader}s
029 */
030 public class ReaderCache extends StringReader implements StreamCache {
031
032 private static final transient Log LOG = LogFactory.getLog(ReaderCache.class);
033
034 private String data;
035
036 public ReaderCache(String data) {
037 super(data);
038 this.data = data;
039 }
040
041 public void close() {
042 // Do not release the string for caching
043 }
044
045 @Override
046 public void reset() {
047 try {
048 super.reset();
049 } catch (IOException e) {
050 LOG.warn("Cannot reset cache", e);
051 }
052 }
053
054 public void writeTo(OutputStream os) throws IOException {
055 os.write(data.getBytes());
056 }
057
058 String getData() {
059 return data;
060 }
061
062 }