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/*
* JBoss, Home of Professional Open Source
* Copyright 2015, Red Hat, Inc., and individual contributors as indicated
* by the @authors tag.
*
* Licensed 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.jboss.util.stream;
import java.io.IOException;
import java.io.PrintWriter;
import java.io.OutputStream;
import java.io.InterruptedIOException;
import java.io.Writer;
/**
* A PrintWriter that ends lines with a carriage return-line feed
* (CRLF).
*
* Concurrency
* This class is as synchronized as PrintWriter.
*
* @version $Revision$
* @author Jason Dillon
*/
public class CRLFPrintWriter
extends PrintWriter
{
protected boolean autoFlush = false;
public CRLFPrintWriter(final Writer out) {
super(out);
}
public CRLFPrintWriter(final Writer out, final boolean autoFlush) {
super(out, autoFlush);
this.autoFlush = autoFlush;
}
public CRLFPrintWriter(final OutputStream out) {
super(out);
}
public CRLFPrintWriter(final OutputStream out, final boolean autoFlush) {
super(out, autoFlush);
this.autoFlush = autoFlush;
}
protected void ensureOpen() throws IOException {
if (out == null)
throw new IOException("Stream closed");
}
public void println() {
try {
synchronized (lock) {
ensureOpen();
out.write("\r\n");
if (autoFlush) {
out.flush();
}
}
}
catch (InterruptedIOException e) {
Thread.currentThread().interrupt();
}
catch (IOException e) {
setError();
}
}
}