Hibernate example source code file (CollectionStats.java)

This example Hibernate source code file (CollectionStats.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Hibernate tags/keywords

collectionstats, collectionstats, composite_type, compositedata, exception, io, item_names, item_names, long, long, runtimeexception, statistics, string, string, tabular_type, util

The Hibernate CollectionStats.java source code

/*
 * Hibernate, Relational Persistence for Idiomatic Java
 *
 * Copyright (c) 2011, Red Hat Inc. or third-party contributors as
 * indicated by the @author tags or express copyright attribution
 * statements applied by the authors.  All third-party contributions are
 * distributed under license by Red Hat Inc.
 *
 * This copyrighted material is made available to anyone wishing to use, modify,
 * copy, or redistribute it subject to the terms and conditions of the GNU
 * Lesser General Public License, 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 Lesser General Public License
 * for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this distribution; if not, write to:
 * Free Software Foundation, Inc.
 * 51 Franklin Street, Fifth Floor
 * Boston, MA  02110-1301  USA
 */
package org.hibernate.cache.ehcache.management.impl;

import java.io.Serializable;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import javax.management.openmbean.CompositeData;
import javax.management.openmbean.CompositeDataSupport;
import javax.management.openmbean.CompositeType;
import javax.management.openmbean.OpenDataException;
import javax.management.openmbean.OpenType;
import javax.management.openmbean.SimpleType;
import javax.management.openmbean.TabularData;
import javax.management.openmbean.TabularDataSupport;
import javax.management.openmbean.TabularType;

import org.hibernate.stat.CollectionStatistics;

/**
 * CollectionStats
 *
 * @author gkeim
 */
public class CollectionStats implements Serializable {
	private static final String COMPOSITE_TYPE_NAME = "CollectionsStats";
	private static final String COMPOSITE_TYPE_DESCRIPTION = "Statistics per Collections";
	private static final String[] ITEM_NAMES = new String[] {
			"roleName", "shortName", "loadCount",
			"fetchCount", "updateCount", "removeCount", "recreateCount",
	};
	private static final String[] ITEM_DESCRIPTIONS = new String[] {
			"roleName", "shortName", "loadCount",
			"fetchCount", "updateCount", "removeCount", "recreateCount",
	};
	private static final OpenType[] ITEM_TYPES = new OpenType[] {
			SimpleType.STRING,
			SimpleType.STRING, SimpleType.LONG, SimpleType.LONG, SimpleType.LONG, SimpleType.LONG, SimpleType.LONG,
	};
	private static final CompositeType COMPOSITE_TYPE;
	private static final String TABULAR_TYPE_NAME = "Statistics by Collection";
	private static final String TABULAR_TYPE_DESCRIPTION = "All Collection Statistics";
	private static final String[] INDEX_NAMES = new String[] { "roleName", };
	private static final TabularType TABULAR_TYPE;

	static {
		try {
			COMPOSITE_TYPE = new CompositeType(
					COMPOSITE_TYPE_NAME, COMPOSITE_TYPE_DESCRIPTION, ITEM_NAMES,
					ITEM_DESCRIPTIONS, ITEM_TYPES
			);
			TABULAR_TYPE = new TabularType( TABULAR_TYPE_NAME, TABULAR_TYPE_DESCRIPTION, COMPOSITE_TYPE, INDEX_NAMES );
		}
		catch ( OpenDataException e ) {
			throw new RuntimeException( e );
		}
	}

	/**
	 * roleName
	 */
	protected final String roleName;

	/**
	 * shortName
	 */
	protected final String shortName;

	/**
	 * loadCount
	 */
	protected long loadCount;

	/**
	 * fetchCount
	 */
	protected long fetchCount;

	/**
	 * updateCount
	 */
	protected long updateCount;

	/**
	 * removeCount
	 */
	protected long removeCount;

	/**
	 * recreateCount
	 */
	protected long recreateCount;


	/**
	 * @param roleName
	 */
	public CollectionStats(String roleName) {
		this.roleName = roleName;
		this.shortName = CacheRegionUtils.determineShortName( roleName );
	}

	/**
	 * @param name
	 * @param src
	 */
	public CollectionStats(String name, CollectionStatistics src) {
		this( name );

		try {
			this.loadCount = BeanUtils.getLongBeanProperty( src, "loadCount" );
			this.fetchCount = BeanUtils.getLongBeanProperty( src, "fetchCount" );
			this.updateCount = BeanUtils.getLongBeanProperty( src, "updateCount" );
			this.removeCount = BeanUtils.getLongBeanProperty( src, "removeCount" );
			this.recreateCount = BeanUtils.getLongBeanProperty( src, "recreateCount" );
		}
		catch ( Exception e ) {
			e.printStackTrace();
			throw new RuntimeException( "Exception retrieving statistics", e );
		}
	}

	/**
	 * @param cData
	 */
	public CollectionStats(final CompositeData cData) {
		int i = 0;
		roleName = (String) cData.get( ITEM_NAMES[i++] );
		shortName = (String) cData.get( ITEM_NAMES[i++] );
		loadCount = (Long) cData.get( ITEM_NAMES[i++] );
		fetchCount = (Long) cData.get( ITEM_NAMES[i++] );
		updateCount = (Long) cData.get( ITEM_NAMES[i++] );
		removeCount = (Long) cData.get( ITEM_NAMES[i++] );
		recreateCount = (Long) cData.get( ITEM_NAMES[i++] );
	}

	private static int safeParseInt(String s) {
		try {
			return Integer.parseInt( s );
		}
		catch ( Exception e ) {
			return -1;
		}
	}

	/**
	 * @param stats
	 */
	public void add(CollectionStats stats) {
		loadCount += stats.getLoadCount();
		fetchCount += stats.getFetchCount();
		updateCount += stats.getUpdateCount();
		removeCount += stats.getRemoveCount();
		recreateCount += stats.getRecreateCount();
	}

	/**
	 * toString
	 */
	@Override
	public String toString() {
		return "roleName=" + roleName + "shortName=" + shortName + ", loadCount=" + loadCount + ", fetchCount="
				+ fetchCount + ", updateCount=" + updateCount + ", removeCount=" + removeCount + ", recreateCount"
				+ recreateCount;
	}

	/**
	 * getRoleName
	 */
	public String getRoleName() {
		return roleName;
	}

	/**
	 * getShortName
	 */
	public String getShortName() {
		return shortName;
	}

	/**
	 * getLoadCount
	 */
	public long getLoadCount() {
		return loadCount;
	}

	/**
	 * getFetchCount
	 */
	public long getFetchCount() {
		return fetchCount;
	}

	/**
	 * getUpdateCount
	 */
	public long getUpdateCount() {
		return updateCount;
	}

	/**
	 * getRemoveCount
	 */
	public long getRemoveCount() {
		return removeCount;
	}

	/**
	 * getRecreateCount
	 */
	public long getRecreateCount() {
		return recreateCount;
	}

	/**
	 * toCompositeData
	 */
	public CompositeData toCompositeData() {
		try {
			return new CompositeDataSupport(
					COMPOSITE_TYPE, ITEM_NAMES, new Object[] {
					roleName, shortName, loadCount,
					fetchCount, updateCount, removeCount, recreateCount,
			}
			);
		}
		catch ( OpenDataException e ) {
			throw new RuntimeException( e );
		}
	}

	/**
	 * newTabularDataInstance
	 */
	public static TabularData newTabularDataInstance() {
		return new TabularDataSupport( TABULAR_TYPE );
	}

	/**
	 * fromTabularData
	 */
	public static CollectionStats[] fromTabularData(final TabularData tabularData) {
		final List<CollectionStats> countList = new ArrayList( tabularData.size() );
		for ( final Iterator pos = tabularData.values().iterator(); pos.hasNext(); ) {
			countList.add( new CollectionStats( (CompositeData) pos.next() ) );
		}
		return countList.toArray( new CollectionStats[countList.size()] );
	}

}