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.Exchange; 023import org.apache.camel.StreamCache; 024import org.apache.camel.StringSource; 025import org.apache.camel.util.IOHelper; 026 027/** 028 * {@link org.apache.camel.StreamCache} implementation for {@link org.apache.camel.StringSource}s 029 */ 030public final class SourceCache extends StringSource implements StreamCache { 031 032 private static final long serialVersionUID = 1L; 033 private final int length; 034 035 public SourceCache(String data) { 036 super(data); 037 this.length = data.length(); 038 } 039 040 public void reset() { 041 // do nothing here 042 } 043 044 public void writeTo(OutputStream os) throws IOException { 045 IOHelper.copy(getInputStream(), os); 046 } 047 048 public StreamCache copy(Exchange exchange) throws IOException { 049 return new SourceCache(getText()); 050 } 051 052 public boolean inMemory() { 053 return true; 054 } 055 056 public long length() { 057 return length; 058 } 059}