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;
021
022import org.apache.camel.StreamCache;
023import org.apache.camel.StringSource;
024import org.apache.camel.util.IOHelper;
025
026/**
027 * {@link org.apache.camel.StreamCache} implementation for {@link org.apache.camel.StringSource}s
028 */
029public final class SourceCache extends StringSource implements StreamCache {
030
031    private static final long serialVersionUID = 1L;
032    private final int length;
033
034    public SourceCache(String data) {
035        super(data);
036        this.length = data.length();
037    }
038
039    public void reset() {
040        // do nothing here
041    }
042
043    public void writeTo(OutputStream os) throws IOException {
044        IOHelper.copy(getInputStream(), os);
045    }
046
047    public boolean inMemory() {
048        return true;
049    }
050
051    @Override
052    public long length() {
053        return length;
054    }
055}