sunlabs.brazil.sunlabs.DelayHandler Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of sunlabs.brazil Show documentation
Extremely small footprint Java HTTP stack.
The newest version!
/*
 * DelayHandler.java
 *
 * Brazil project web application toolkit,
 * export version: 2.3 
 * Copyright (c) 2003-2006 Sun Microsystems, Inc.
 *
 * Sun Public License Notice
 *
 * The contents of this file are subject to the Sun Public License Version 
 * 1.0 (the "License"). You may not use this file except in compliance with 
 * the License. A copy of the License is included as the file "license.terms",
 * and also available at http://www.sun.com/
 * 
 * The Original Code is from:
 *    Brazil project web application toolkit release 2.3.
 * The Initial Developer of the Original Code is: suhler.
 * Portions created by suhler are Copyright (C) Sun Microsystems, Inc.
 * All Rights Reserved.
 * 
 * Contributor(s): suhler.
 *
 * Version:  1.5
 * Created by suhler on 03/08/28
 * Last modified by suhler on 06/11/13 15:05:34
 *
 * Version Histories:
 *
 * 1.5 06/11/13-15:05:34 (suhler)
 *   move MatchString to package "util" from "handler"
 *
 * 1.4 06/08/07-16:36:48 (suhler)
 *   change delay parameters to "ms" and "sec" and fix the docs.
 *
 * 1.3 04/05/24-15:24:09 (suhler)
 *   doc fixes
 *
 * 1.2 04/04/28-14:52:38 (suhler)
 *   ??
 *
 * 1.2 03/08/28-14:16:08 (Codemgr)
 *   SunPro Code Manager data about conflicts, renames, etc...
 *   Name history : 1 0 sunlabs/DelayHandler.java
 *
 * 1.1 03/08/28-14:16:07 (suhler)
 *   date and time created 03/08/28 14:16:07 by suhler
 *
 */

package sunlabs.brazil.sunlabs;

import java.io.IOException;
import sunlabs.brazil.server.Handler;
import sunlabs.brazil.server.Request;
import sunlabs.brazil.server.Server;
import sunlabs.brazil.util.MatchString;

import sunlabs.brazil.template.RewriteContext;
import sunlabs.brazil.template.Template;

/**
 * Handler or template for adding a delay into a response.
 * 
 * Properties:
 * 

 * prefix, suffix, match, glob
Specify which url's to process.
 * 
delay
The delay, in ms (defaults to 1000).
 * 
 * Template:
 * <delay sec=nnn ms=nnn />
 * 
 * Delay the specified amount of seconds plus msec - either or both
 * may be specified.
 */

public class DelayHandler extends Template implements Handler {
    MatchString isMine;            // check for matching url

    public boolean
    init(Server server, String prefix) {
	isMine = new MatchString(prefix, server.props);
	return true;
    }

    /**
     * Delay before servicing this request.
     * 
<delay sec=nnn ms=nnn>
     */

    public boolean
    respond(Request request) throws IOException {
	if (isMine.match(request.url)) {
	    String sec=request.props.getProperty(isMine.prefix() + "sec", "0");
	    String ms=request.props.getProperty(isMine.prefix() + "ms", "0");
	    delay(sec, ms);
        }
	return false;
    }

    /**
     * Pause for "ms" ms and/or "sec" seconds.
     */

    public void
    tag_delay(RewriteContext hr) {
	debug(hr);
	int delay;
	String ms = hr.get("ms", "0");
	String sec = hr.get("sec", "0");
	delay(hr.get("sec", "0"), hr.get("ms", "0"));
    }

    void delay(String sec, String ms) {
	try {
	    int delay = Integer.decode(ms).intValue() +
		    1000 * Integer.decode(sec).intValue();
	    Thread.sleep(delay);
	} catch (Exception e) {
	}
    }
}