MonitoredObjectImpl.java

/*
 * Copyright (c) 2003, 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.
 */

package org.jboss.com.sun.corba.se.impl.monitoring;

import java.util.Collection;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;

import org.jboss.com.sun.corba.se.spi.monitoring.MonitoredAttribute;
import org.jboss.com.sun.corba.se.spi.monitoring.MonitoredObject;

public class MonitoredObjectImpl implements MonitoredObject
{
    private final String name;

    private final String description;

    // List of all child Monitored Objects
    private Map<String, MonitoredObject> children = new HashMap<String, MonitoredObject>();

    // All the Attributes of this Monitored Object instance
    private Map<String, MonitoredAttribute> monitoredAttributes = new HashMap<String, MonitoredAttribute>();

    private MonitoredObject parent = null;

    // Constructor
    MonitoredObjectImpl(String name, String description)
    {
        this.name = name;
        this.description = description;
    }

    public MonitoredObject getChild(String name)
    {
        synchronized (this)
        {
            return children.get(name);
        }
    }

    public Collection<MonitoredObject> getChildren()
    {
        synchronized (this)
        {
            return children.values();
        }
    }

    public void addChild(MonitoredObject m)
    {
        if (m != null)
        {
            synchronized (this)
            {
                children.put(m.getName(), m);
                m.setParent(this);
            }
        }
    }

    public void removeChild(String name)
    {
        if (name != null)
        {
            synchronized (this)
            {
                children.remove(name);
            }
        }
    }

    public synchronized MonitoredObject getParent()
    {
        return parent;
    }

    public synchronized void setParent(MonitoredObject p)
    {
        parent = p;
    }

    public MonitoredAttribute getAttribute(String name)
    {
        synchronized (this)
        {
            return monitoredAttributes.get(name);
        }
    }

    public Collection<MonitoredAttribute> getAttributes()
    {
        synchronized (this)
        {
            return monitoredAttributes.values();
        }
    }

    public void addAttribute(MonitoredAttribute value)
    {
        if (value != null)
        {
            synchronized (this)
            {
                monitoredAttributes.put(value.getName(), value);
            }
        }
    }

    public void removeAttribute(String name)
    {
        if (name != null)
        {
            synchronized (this)
            {
                monitoredAttributes.remove(name);
            }
        }
    }

    /**
     * calls clearState() on all the registered children MonitoredObjects and MonitoredAttributes.
     */
    public void clearState()
    {
        synchronized (this)
        {
            Iterator<MonitoredAttribute> i = monitoredAttributes.values().iterator();
            // First call clearState on all the local attributes
            while (i.hasNext())
            {
                i.next().clearState();
            }
            Iterator<MonitoredObject> i2 = children.values().iterator();
            // next call clearState on all the children MonitoredObjects
            while (i2.hasNext())
            {
                ((MonitoredObject) i.next()).clearState();
            }
        }
    }

    public String getName()
    {
        return name;
    }

    public String getDescription()
    {
        return description;
    }
}