/*

 * 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.ReferenceType;

import com.sun.jdi.request.*;

class ExceptionSpec extends EventRequestSpec {

    private boolean notifyCaught;

    private boolean notifyUncaught;

    private ExceptionSpec(ReferenceTypeSpec refSpec) {

        this(refSpec, true, true);

    }

    ExceptionSpec(ReferenceTypeSpec refSpec,

                  boolean notifyCaught,

                  boolean notifyUncaught) {

        super(refSpec);

        this.notifyCaught = notifyCaught;

        this.notifyUncaught = notifyUncaught;

    }

    /**

     * The 'refType' is known to match, return the EventRequest.

     */

    @Override

    EventRequest resolveEventRequest(ReferenceType refType) {

        EventRequestManager em = refType.virtualMachine().eventRequestManager();

        ExceptionRequest excReq = em.createExceptionRequest(refType,

                                                            notifyCaught,

                                                            notifyUncaught);

        excReq.enable();

        return excReq;

    }

    public boolean notifyCaught() {

        return notifyCaught;

    }

    public boolean notifyUncaught() {

        return notifyUncaught;

    }

    @Override

    public int hashCode() {

        //Reference: Effective Java[tm] (Bloch, 2001), Item 8

        int result = 17;

        result = (37 * result) + (notifyCaught() ? 0: 1);

        result = (37 * result) + (notifyUncaught() ? 0: 1);

        result = (37 * result) + refSpec.hashCode();

        return result;

    }

    @Override

    public boolean equals(Object obj) {

        if (obj instanceof ExceptionSpec) {

            ExceptionSpec es = (ExceptionSpec)obj;

            if (refSpec.equals(es.refSpec) &&

                (this.notifyCaught() == es.notifyCaught()) &&

                (this.notifyUncaught() == es.notifyUncaught())) {

                return true;

            }

        }

        return false;

    }

    @Override

    public String toString() {

        String s;

        if (notifyCaught && !notifyUncaught) {

            s = MessageOutput.format("exceptionSpec caught",

                                     refSpec.toString());

        } else if (notifyUncaught && !notifyCaught) {

            s = MessageOutput.format("exceptionSpec uncaught",

                                     refSpec.toString());

        } else {

            s = MessageOutput.format("exceptionSpec all",

                                     refSpec.toString());

        }

        return s;

    }

}