/*
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* JBoss, Home of Professional Open Source
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* Copyright 2005, JBoss Inc., and individual contributors as indicated
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* by the @authors tag. See the copyright.txt in the distribution for a
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* full listing of individual contributors.
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*
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* This is free software; you can redistribute it and/or modify it
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* under the terms of the GNU Lesser General Public License as
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* published by the Free Software Foundation; either version 2.1 of
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* the License, or (at your option) any later version.
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*
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* This software is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this software; if not, write to the Free
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* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
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* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
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*/
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package org.jbpm.pvm.internal.query;
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import java.util.HashMap;
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import java.util.List;
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import java.util.Map;
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import org.hibernate.Query;
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import org.hibernate.Session;
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import org.jbpm.api.cmd.Command;
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import org.jbpm.api.cmd.Environment;
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import org.jbpm.pvm.internal.history.model.HistoryActivityInstanceImpl;
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/**
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* @author Tom Baeyens
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*/
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public class ChoiceDistributionQueryCmd implements Command<Object> {
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private static final long serialVersionUID = 1L;
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protected String processDefinitionId;
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protected String activityName;
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public ChoiceDistributionQueryCmd(String processDefinitionId, String activityName) {
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this.processDefinitionId = processDefinitionId;
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this.activityName = activityName;
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}
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public Object execute(Environment environment) {
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Session session = environment.get(Session.class);
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Query query = session.createQuery(
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"select hai.transitionName, count(hai) " +
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"from "+HistoryActivityInstanceImpl.class.getName()+" as hai " +
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"where hai.historyProcessInstance.processDefinitionId = :processDefinitionId " +
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" and hai.activityName = :activityName " +
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"group by hai.transitionName "
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);
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query.setString("processDefinitionId", processDefinitionId);
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query.setString("activityName", activityName);
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List<Object[]> transitionCounts = query.list();
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Map<String, Integer> choiceDistributionCounts = new HashMap<String, Integer>();
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for (Object[] pair: transitionCounts) {
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String transitionName = (String) pair[0];
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Number number = (Number) pair[1];
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choiceDistributionCounts.put(transitionName, new Integer(number.intValue()));
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}
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return choiceDistributionCounts;
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}
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}
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