/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.cxf.transport.jms;
import java.io.IOException;
import java.io.OutputStream;
import java.io.Reader;
import java.io.StringWriter;
import java.io.Writer;
import org.apache.cxf.io.CachedOutputStream;
import org.apache.cxf.message.Exchange;
import org.apache.cxf.message.Message;
final class MessageStreamUtil {
private MessageStreamUtil() {
}
/**
* Set Writer or OutputStream in message that calls the sender on close with
* the content of the stream
*
* @param message where to set the content
* @param isTextPayload decides about stream type true:Writer, false: OutputStream
* @param sender will be called on close
*/
public static void prepareStream(final Message message, boolean isTextPayload,
final JMSExchangeSender sender) {
if (isTextPayload) {
message.setContent(Writer.class, new SendingWriter(sender, message.getExchange()));
} else {
SendingOutputStream out = new SendingOutputStream(sender, message.getExchange());
message.setContent(OutputStream.class, out);
}
}
private static final class SendingWriter extends StringWriter {
private final JMSExchangeSender sender;
private Exchange exchange;
private SendingWriter(JMSExchangeSender sender, Exchange exchange) {
this.sender = sender;
this.exchange = exchange;
}
@Override
public void close() throws IOException {
super.close();
sender.sendExchange(exchange, toString());
}
}
private static final class SendingOutputStream extends CachedOutputStream {
private final JMSExchangeSender sender;
private Exchange exchange;
SendingOutputStream(JMSExchangeSender sender, Exchange exchange) {
this.sender = sender;
this.exchange = exchange;
}
@Override
protected void doClose() throws IOException {
this.sender.sendExchange(exchange, getBytes());
}
}
public static void closeStreams(Message msg) throws IOException {
Writer writer = msg.getContent(Writer.class);
if (writer != null) {
writer.close();
}
Reader reader = msg.getContent(Reader.class);
if (reader != null) {
reader.close();
}
}
}