Hibernate example source code file (QueryStats.java)

This example Hibernate source code file (QueryStats.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

composite_type, compositedata, io, item_names, item_names, long, long, query, querystats, querystats, runtimeexception, statistics, string, string, tabular_type, util

The Hibernate QueryStats.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.QueryStatistics;


/**
 * @author gkeim
 * @author Alex Snaps
 */
public class QueryStats implements Serializable {
	private static final String COMPOSITE_TYPE_NAME = "QueryStats";
	private static final String COMPOSITE_TYPE_DESCRIPTION = "Statistics per Query";
	private static final String[] ITEM_NAMES = new String[] {
			"query", "cacheHitCount",
			"cacheMissCount",
			"cachePutCount",
			"executionCount",
			"executionRowCount",
			"executionAvgTime",
			"executionMaxTime",
			"executionMinTime",
	};
	private static final String[] ITEM_DESCRIPTIONS = new String[] {
			"query", "cacheHitCount",
			"cacheMissCount",
			"cachePutCount",
			"executionCount",
			"executionRowCount",
			"executionAvgTime",
			"executionMaxTime",
			"executionMinTime",
	};
	private static final OpenType[] ITEM_TYPES = new OpenType[] {
			SimpleType.STRING, SimpleType.LONG,
			SimpleType.LONG, SimpleType.LONG, 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 Query";
	private static final String TABULAR_TYPE_DESCRIPTION = "All Query Statistics";
	private static final String[] INDEX_NAMES = new String[] { "query", };
	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 );
		}
	}

	/**
	 * query
	 */
	protected final String query;

	/**
	 * cacheHitCount
	 */
	protected long cacheHitCount;

	/**
	 * cacheMissCount
	 */
	protected long cacheMissCount;

	/**
	 * cachePutCount
	 */
	protected long cachePutCount;

	/**
	 * executionCount
	 */
	protected long executionCount;

	/**
	 * executionRowCount
	 */
	protected long executionRowCount;

	/**
	 * executionAvgTime
	 */
	protected long executionAvgTime;

	/**
	 * executionMaxTime
	 */
	protected long executionMaxTime;

	/**
	 * executionMinTime
	 */
	protected long executionMinTime;

	/**
	 * @param name
	 */
	public QueryStats(String name) {
		this.query = name;
	}

	/**
	 * @param name
	 * @param src
	 */
	public QueryStats(String name, QueryStatistics src) {
		this( name );

		try {
			this.cacheHitCount = BeanUtils.getLongBeanProperty( src, "cacheHitCount" );
			this.cacheMissCount = BeanUtils.getLongBeanProperty( src, "cacheMissCount" );
			this.cachePutCount = BeanUtils.getLongBeanProperty( src, "cachePutCount" );
			this.executionCount = BeanUtils.getLongBeanProperty( src, "executionCount" );
			this.executionRowCount = BeanUtils.getLongBeanProperty( src, "executionRowCount" );
			this.executionAvgTime = BeanUtils.getLongBeanProperty( src, "executionAvgTime" );
			this.executionMaxTime = BeanUtils.getLongBeanProperty( src, "executionMaxTime" );
			this.executionMinTime =
					BeanUtils.getLongBeanProperty( src, "executionMinTime" );
		}
		catch ( Exception e ) {
			e.printStackTrace();
			throw new RuntimeException( "Exception retrieving statistics", e );
		}
	}

	/**
	 * @param cData
	 */
	public QueryStats(final CompositeData cData) {
		int i = 0;
		query = (String) cData.get( ITEM_NAMES[i++] );
		cacheHitCount = (Long) cData.get( ITEM_NAMES[i++] );
		cacheMissCount = (Long) cData.get( ITEM_NAMES[i++] );
		cachePutCount = (Long) cData.get( ITEM_NAMES[i++] );
		executionCount = (Long) cData.get( ITEM_NAMES[i++] );
		executionRowCount = (Long) cData.get( ITEM_NAMES[i++] );
		executionAvgTime = (Long) cData.get( ITEM_NAMES[i++] );
		executionMaxTime = (Long) cData.get( ITEM_NAMES[i++] );
		executionMinTime = (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(QueryStats stats) {
		cacheHitCount += stats.getCacheHitCount();
		cacheMissCount += stats.getCacheMissCount();
		cachePutCount += stats.getCachePutCount();
		executionCount += stats.getExecutionCount();
		executionRowCount += stats.getExecutionRowCount();
		executionAvgTime += stats.getExecutionAvgTime();
		executionMaxTime += stats.getExecutionMaxTime();
		executionMinTime += stats.getExecutionMinTime();
	}

	/**
	 * toString
	 */
	@Override
	public String toString() {
		return "query=" + query + ", cacheHitCount=" + cacheHitCount + ", cacheMissCount=" + cacheMissCount
				+ ", cachePutCount=" + cachePutCount + ", executionCount=" + executionCount + ", executionRowCount="
				+ executionRowCount + ", executionAvgTime=" + executionAvgTime + ", executionMaxTime=" + executionMaxTime
				+ ", executionMinTime=" + executionMinTime;
	}

	/**
	 * getQuery
	 */
	public String getQuery() {
		return query;
	}

	/**
	 * getCacheHitCount
	 */
	public long getCacheHitCount() {
		return cacheHitCount;
	}

	/**
	 * getCacheMissCount
	 */
	public long getCacheMissCount() {
		return cacheMissCount;
	}

	/**
	 * getCachePutCount
	 */
	public long getCachePutCount() {
		return cachePutCount;
	}

	/**
	 * getExecutionCount
	 */
	public long getExecutionCount() {
		return executionCount;
	}

	/**
	 * getExecutionRowCount
	 */
	public long getExecutionRowCount() {
		return executionRowCount;
	}

	/**
	 * getExecutionAvgTime
	 */
	public long getExecutionAvgTime() {
		return executionAvgTime;
	}

	/**
	 * getExecutionMaxTime
	 */
	public long getExecutionMaxTime() {
		return executionMaxTime;
	}

	/**
	 * getExecutionMinTime
	 */
	public long getExecutionMinTime() {
		return executionMinTime;
	}

	/**
	 * toCompositeData
	 */
	public CompositeData toCompositeData() {
		try {
			return new CompositeDataSupport(
					COMPOSITE_TYPE, ITEM_NAMES, new Object[] {
					query, cacheHitCount, cacheMissCount,
					cachePutCount,
					executionCount,
					executionRowCount,
					executionAvgTime,
					executionMaxTime,
					executionMinTime,
			}
			);
		}
		catch ( OpenDataException e ) {
			throw new RuntimeException( e );
		}
	}

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

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