SetupWriter.java revision 8af80418ba1ec431c8027fa9668e5678658d3611
/**
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright (c) 2008 Sun Microsystems Inc. All Rights Reserved
*
* The contents of this file are subject to the terms
* of the Common Development and Distribution License
* (the License). You may not use this file except in
* compliance with the License.
*
* You can obtain a copy of the License at
* https://opensso.dev.java.net/public/CDDLv1.0.html or
* opensso/legal/CDDLv1.0.txt
* See the License for the specific language governing
* permission and limitations under the License.
*
* When distributing Covered Code, include this CDDL
* Header Notice in each file and include the License file
* at opensso/legal/CDDLv1.0.txt.
* If applicable, add the following below the CDDL Header,
* with the fields enclosed by brackets [] replaced by
* your own identifying information:
* "Portions Copyrighted [year] [name of copyright owner]"
*
* $Id: SetupWriter.java,v 1.2 2008/06/25 05:42:32 qcheng Exp $
*
*/
/**
* Portions Copyrighted 2011 ForgeRock AS
*/
package com.sun.identity.config;
import java.io.CharArrayWriter;
import java.io.Writer;
import java.io.IOException;
/**
* <code>java.io.Writer</code> implementation to allow a thread to dump messages
* in a http response writer owned by another thread.
* Currently used by AJAX spun threads to send progress log to be displayed
* on the page tha invoked the AJAX calls.
*/
public class SetupWriter extends Writer {
private Writer realWriter = null;
private CharArrayWriter buf = new CharArrayWriter();
private boolean flushflag = false;
private volatile boolean closeflag = false;
public SetupWriter(Writer wt) {
realWriter = wt;
}
synchronized public void write(char[] b, int off, int len) throws IOException {
buf.write(b, off, len);
notify();
}
synchronized public void flush() throws IOException {
flushflag = true;
notify();
}
synchronized public void close() throws IOException {
closeflag = true;
notify();
}
synchronized public void realFlush() {
try {
while (true && !closeflag) {
wait(600000);
buf.writeTo(realWriter);
buf.reset();
if (flushflag) {
realWriter.flush();
}
}
} catch(Exception ex) {
System.out.println("SetupWriter:"+ex);
}
}
}