Mega Code Archive
A PrintWriter that ends lines with a carriage return-line feed (CRLF)
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/*
* JBoss, Home of Professional Open Source
* Copyright 2005, JBoss Inc., and individual contributors as indicated
* by the @authors tag. See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
import java.io.IOException;
import java.io.InterruptedIOException;
import java.io.OutputStream;
import java.io.PrintWriter;
import java.io.Writer;
/**
* A <tt>PrintWriter</tt> that ends lines with a carriage return-line feed (<tt>CRLF</tt>).
*
* <h3>Concurrency</h3>
* This class is <b>as</b> synchronized as <tt>PrintWriter</tt>.
*
* @version <tt>$Revision: 1958 $</tt>
* @author <a href="mailto:jason@planet57.com">Jason Dillon</a>
*/
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();
}
}
}
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