/*

 * Copyright (c) 1997, 2008, 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.

 */

/*

 * The Original Code is HAT. The Initial Developer of the

 * Original Code is Bill Foote, with contributions from others

 * at JavaSoft/Sun.

 */

package com.sun.tools.hat.internal.server;

import com.sun.tools.hat.internal.model.*;

import java.util.Enumeration;

/**

 *

 * @author      Bill Foote

 */

class InstancesQuery extends QueryHandler {

    private boolean includeSubclasses;

    private boolean newObjects;

    public InstancesQuery(boolean includeSubclasses) {

        this.includeSubclasses = includeSubclasses;

    }

    public InstancesQuery(boolean includeSubclasses, boolean newObjects) {

        this.includeSubclasses = includeSubclasses;

        this.newObjects = newObjects;

    }

    public void run() {

        JavaClass clazz = snapshot.findClass(query);

        String instancesOf;

        if (newObjects)

            instancesOf = "New instances of ";

        else

            instancesOf = "Instances of ";

        if (includeSubclasses) {

            startHtml(instancesOf + query + " (including subclasses)");

        } else {

            startHtml(instancesOf + query);

        }

        if (clazz == null) {

            error("Class not found");

        } else {

            out.print("<strong>");

            printClass(clazz);

            out.print("</strong><br><br>");

            Enumeration objects = clazz.getInstances(includeSubclasses);

            long totalSize = 0;

            long instances = 0;

            while (objects.hasMoreElements()) {

                JavaHeapObject obj = (JavaHeapObject) objects.nextElement();

                if (newObjects && !obj.isNew())

                    continue;

                printThing(obj);

                out.println("<br>");

                totalSize += obj.getSize();

                instances++;

            }

            out.println("<h2>Total of " + instances + " instances occupying " + totalSize + " bytes.</h2>");

        }

        endHtml();

    }

}