/*
*
*
* Copyright 1990-2007 Sun Microsystems, Inc. All Rights Reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License version
* 2 only, as published by the Free Software Foundation.
*
* This program 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
* General Public License version 2 for more details (a copy is
* included at /legal/license.txt).
*
* You should have received a copy of the GNU General Public License
* version 2 along with this work; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA
*
* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
* Clara, CA 95054 or visit www.sun.com if you need additional
* information or have any questions.
*/
package com.sun.midp.events;
import java.util.Vector;
/**
* An implementation of an EventListener that records the events passed to its
* process() and preprocess() methods.
*/
class InstrumentedEventListener implements EventListener {
/** The value preprocess() should return. */
boolean preprocess;
/** Accumulates events passed to process(). */
Vector processedEvents;
/** Accumulates events passed to preprocess(). */
Vector preprocessedEvents;
/** Accumulates the waitingEvents passed to preprocess(). */
Vector preprocessedWaitingEvents;
/**
* Creates a new InstrumentedEventListener, setting
* the return value of its preprocess() method to be
* newPreprocess.
*/
public InstrumentedEventListener(boolean newPreprocess) {
processedEvents = new Vector();
preprocessedEvents = new Vector();
preprocessedWaitingEvents = new Vector();
preprocess = newPreprocess;
}
/**
* Creates a new InstrumentedEventListener whose preprocess()
* method returns true.
*/
public InstrumentedEventListener() {
this(true);
}
/**
* The preprocess() method of EventListener. Records the event and
* the waitingEvent in the corresponding vectors. Returns the current
* value of preprocess.
*/
public boolean preprocess(Event event, Event waitingEvent) {
preprocessedEvents.addElement(event);
preprocessedWaitingEvents.addElement(waitingEvent);
return preprocess;
}
/**
* Sets the return value of the preprocess() method.
*/
public void setPreprocess(boolean p) {
preprocess = p;
}
/**
* The process() method of EventListener. Simply records the given event
* in the processedEvents vector.
*/
public void process(Event event) {
processedEvents.addElement(event);
}
/**
* Returns an array of events recorded by the process() method.
*/
public Event[] getProcessedEvents() {
return getArray(processedEvents);
}
/**
* Returns an array of events recorded by the preprocess() method.
*/
public Event[] getPreprocessedEvents() {
return getArray(preprocessedEvents);
}
/**
* Returns an array of waiting events recorded by the preprocess() method.
* Note that there will likely be null elements within this array.
*/
public Event[] getWaitingEvents() {
return getArray(preprocessedWaitingEvents);
}
/**
* Returns an array of events, given a vector of events.
*/
Event[] getArray(Vector v) {
Event eva[] = new Event[v.size()];
v.copyInto(eva);
return eva;
}
}
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