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	/*
	* Copyright (c) 1998, 2011, Oracle and/or its affiliates. All rights reserved.
	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
	*
	* This code 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. Oracle designates this
	* particular file as subject to the "Classpath" exception as provided
	* by Oracle in the LICENSE file that accompanied this code.
	*
	* This code 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 in the LICENSE file that
	* accompanied this code).
	*
	* 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
	* or visit www.oracle.com if you need additional information or have any
	* questions.
	*/

	/*
	* This source code is provided to illustrate the usage of a given feature
	* or technique and has been deliberately simplified. Additional steps
	* required for a production-quality application, such as security checks,
	* input validation and proper error handling, might not be present in
	* this sample code.
	*/


	package com.sun.tools.example.debug.tty;

	import com.sun.jdi.request.EventRequest;
	import com.sun.jdi.event.ClassPrepareEvent;

	import java.util.ArrayList;
	import java.util.Collections;
	import java.util.List;

	class EventRequestSpecList {

	private static final int statusResolved = 1;
	private static final int statusUnresolved = 2;
	private static final int statusError = 3;

	// all specs
	private List<EventRequestSpec> eventRequestSpecs = Collections.synchronizedList(
	new ArrayList<EventRequestSpec>());

	EventRequestSpecList() {
	}

	/**
	* Resolve all deferred eventRequests waiting for 'refType'.
	* @return true if it completes successfully, false on error.
	*/
	boolean resolve(ClassPrepareEvent event) {
	boolean failure = false;
	synchronized(eventRequestSpecs) {
	for (EventRequestSpec spec : eventRequestSpecs) {
	if (!spec.isResolved()) {
	try {
	EventRequest eventRequest = spec.resolve(event);
	if (eventRequest != null) {
	MessageOutput.println("Set deferred", spec.toString());
	}
	} catch (Exception e) {
	MessageOutput.println("Unable to set deferred",
	new Object [] {spec.toString(),
	spec.errorMessageFor(e)});
	failure = true;
	}
	}
	}
	}
	return !failure;
	}

	void resolveAll() {
	for (EventRequestSpec spec : eventRequestSpecs) {
	try {
	EventRequest eventRequest = spec.resolveEagerly();
	if (eventRequest != null) {
	MessageOutput.println("Set deferred", spec.toString());
	}
	} catch (Exception e) {
	}
	}
	}

	boolean addEagerlyResolve(EventRequestSpec spec) {
	try {
	eventRequestSpecs.add(spec);
	EventRequest eventRequest = spec.resolveEagerly();
	if (eventRequest != null) {
	MessageOutput.println("Set", spec.toString());
	}
	return true;
	} catch (Exception exc) {
	MessageOutput.println("Unable to set",
	new Object [] {spec.toString(),
	spec.errorMessageFor(exc)});
	return false;
	}
	}

	BreakpointSpec createBreakpoint(String classPattern, int line)
	throws ClassNotFoundException {
	ReferenceTypeSpec refSpec =
	new PatternReferenceTypeSpec(classPattern);
	return new BreakpointSpec(refSpec, line);
	}

	BreakpointSpec createBreakpoint(String classPattern,
	String methodId,
	List<String> methodArgs)
	throws MalformedMemberNameException,
	ClassNotFoundException {
	ReferenceTypeSpec refSpec =
	new PatternReferenceTypeSpec(classPattern);
	return new BreakpointSpec(refSpec, methodId, methodArgs);
	}

	EventRequestSpec createExceptionCatch(String classPattern,
	boolean notifyCaught,
	boolean notifyUncaught)
	throws ClassNotFoundException {
	ReferenceTypeSpec refSpec =
	new PatternReferenceTypeSpec(classPattern);
	return new ExceptionSpec(refSpec, notifyCaught, notifyUncaught);
	}

	WatchpointSpec createAccessWatchpoint(String classPattern,
	String fieldId)
	throws MalformedMemberNameException,
	ClassNotFoundException {
	ReferenceTypeSpec refSpec =
	new PatternReferenceTypeSpec(classPattern);
	return new AccessWatchpointSpec(refSpec, fieldId);
	}

	WatchpointSpec createModificationWatchpoint(String classPattern,
	String fieldId)
	throws MalformedMemberNameException,
	ClassNotFoundException {
	ReferenceTypeSpec refSpec =
	new PatternReferenceTypeSpec(classPattern);
	return new ModificationWatchpointSpec(refSpec, fieldId);
	}

	boolean delete(EventRequestSpec proto) {
	synchronized (eventRequestSpecs) {
	int inx = eventRequestSpecs.indexOf(proto);
	if (inx != -1) {
	EventRequestSpec spec = eventRequestSpecs.get(inx);
	spec.remove();
	eventRequestSpecs.remove(inx);
	return true;
	} else {
	return false;
	}
	}
	}

	List<EventRequestSpec> eventRequestSpecs() {
	// We need to make a copy to avoid synchronization problems
	synchronized (eventRequestSpecs) {
	return new ArrayList<EventRequestSpec>(eventRequestSpecs);
	}
	}
	}

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