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 */
017package org.apache.camel.converter.stream;
018
019import java.io.IOException;
020import java.io.OutputStream;
021import java.io.StringReader;
022
023import org.apache.camel.StreamCache;
024
025/**
026 * A {@link org.apache.camel.StreamCache} for String {@link java.io.Reader}s
027 */
028public class ReaderCache extends StringReader implements StreamCache {
029
030    private final String data;
031
032    public ReaderCache(String data) {
033        super(data);
034        this.data = data;
035    }
036
037    public void close() {
038        // Do not release the string for caching
039    }
040
041    @Override
042    public void reset() {
043        try {
044            super.reset();
045        } catch (IOException e) {
046            // ignore
047        }
048    }
049
050    public void writeTo(OutputStream os) throws IOException {
051        os.write(data.getBytes());
052    }
053
054    public boolean inMemory() {
055        return true;
056    }
057
058    public long length() {
059        return data.length();
060    }
061
062    String getData() {
063        return data;
064    }
065
066}