/*
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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.cmd;
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import java.util.HashMap;
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import java.util.Map;
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import org.jbpm.api.JbpmException;
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import org.jbpm.api.cmd.Environment;
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import org.jbpm.pvm.internal.client.ClientExecution;
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import org.jbpm.pvm.internal.session.DbSession;
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/**
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* @author Tom Baeyens
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*/
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public abstract class VariablesCmd<T> extends AbstractCommand<T> {
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private static final long serialVersionUID = 1L;
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protected Map<String, ?> variables;
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private Map<String, Object> internalMap;
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public void addVariable(String key, Object variable) {
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if (internalMap == null) {
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if (variables != null) {
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throw new JbpmException("variables were set externally");
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}
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variables = internalMap = new HashMap<String, Object>();
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}
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internalMap.put(key, variable);
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}
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public Map<String, ?> getVariables() {
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return variables;
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}
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public void setVariables(Map<String, ?> variables) {
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this.variables = variables;
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}
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protected ClientExecution getExecution(Environment environment, String executionId) {
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DbSession dbSession = environment.get(DbSession.class);
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ClientExecution execution = dbSession.findExecutionById(executionId);
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if (execution == null) {
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throw new JbpmException("execution " + executionId + " doesn't exist");
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}
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return execution;
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}
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}
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