/*
* Copyright 2010 Red Hat, Inc. and/or its affiliates.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.jbpm.process.instance.command;
import org.drools.core.command.impl.ExecutableCommand;
import org.drools.core.command.impl.RegistryContext;
import org.kie.api.runtime.Context;
import org.kie.api.runtime.KieSession;
import org.kie.api.runtime.process.ProcessInstance;
import org.kie.api.runtime.process.WorkflowProcessInstance;
import org.kie.internal.command.ProcessInstanceIdCommand;
import javax.xml.bind.annotation.XmlAccessType;
import javax.xml.bind.annotation.XmlAccessorType;
import javax.xml.bind.annotation.XmlAttribute;
import javax.xml.bind.annotation.XmlSchemaType;
@XmlAccessorType(XmlAccessType.NONE)
public class GetProcessInstanceVariableCommand implements ExecutableCommand<Object>, ProcessInstanceIdCommand {
private static final long serialVersionUID = 6L;
@XmlAttribute(required=true)
@XmlSchemaType(name="long")
private Long processInstanceId;
@XmlAttribute(required=true)
@XmlSchemaType(name="string")
private String variableId;
@Override
public Long getProcessInstanceId() {
return processInstanceId;
}
@Override
public void setProcessInstanceId(Long processInstanceId) {
this.processInstanceId = processInstanceId;
}
public String getVariableId() {
return variableId;
}
public void setVariableId(String variableId) {
this.variableId = variableId;
}
public Object execute(Context context ) {
KieSession ksession = ((RegistryContext) context).lookup( KieSession.class );
if (processInstanceId == null) {
return null;
}
ProcessInstance processInstance = ksession.getProcessInstance(processInstanceId);
if ( processInstance == null ) {
throw new IllegalArgumentException( "Could not find process instance for id " + processInstanceId );
}
if ( processInstance instanceof WorkflowProcessInstance ) {
return ((WorkflowProcessInstance) processInstance).getVariable(variableId);
} else {
throw new IllegalStateException("Could not retrieve variable " + variableId
+ " because process instance " + processInstanceId + " was inaccessible!");
}
}
public String toString() {
return "session.getProcessInstanceVariable(" + processInstanceId + ", " + variableId +");";
}
}