MonitoringValuePM.java

/*******************************************************************************
 * Copyright (c) 2004, 2010 BREDEX GmbH.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     BREDEX GmbH - initial API and implementation and/or initial documentation
 *******************************************************************************/
package org.eclipse.jubula.client.core.persistence;

import java.util.Collections;
import java.util.Map;

import javax.persistence.EntityManager;

import org.eclipse.jubula.client.core.model.ITestResultSummaryPO;
import org.eclipse.jubula.client.core.model.PoMaker;
import org.eclipse.jubula.tools.internal.objects.IMonitoringValue;

/**
 * Loads monitoring values from the database
 * 
 * @author BREDEX GmbH
 * @created 10.10.2010
 */
public class MonitoringValuePM {

    /** to prevent instantiation */
    private MonitoringValuePM() {
        // DO NOTHING
    }

    /**
     * 
     * @param summaryID
     *            The current selected summaryID
     * @return The monitored values
     */
    public static final Map<String, IMonitoringValue> loadMonitoringValues(
            Object summaryID) {
        if (Persistor.instance() == null) {
            return Collections.emptyMap();
        }
        EntityManager session = Persistor.instance().openSession();
        ITestResultSummaryPO summary;
        try {
            Persistor.instance().getTransaction(session);
            summary = session.find(PoMaker.getTestResultSummaryClass(),
                    summaryID);
            if (summary == null) {
                return Collections.emptyMap();
            }
        } finally {
            Persistor.instance().dropSession(session);
        }
        return summary.getMonitoringValues();
    }

}