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.slf4j.Logger; 025 import org.slf4j.LoggerFactory; 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 Logger LOG = LoggerFactory.getLogger(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 }