gettasklistcommand.java

workflow first jbpm

package org.jbpm.command;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.Iterator;
import java.util.List;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.jbpm.JbpmContext;
import org.jbpm.taskmgmt.exe.TaskInstance;

/**
 * return a {@link java.util.List} of {@link org.jbpm.taskmgmt.exe.TaskInstance}s
 * for the given actor(s).
 * 
 * if no actor is used, the current authenticated user is taken as actor.
 * 
 * for all actors it is checked, if they are pooled or assigned actor!
 * 
 * @author Bernd Ruecker ([e-mail])
 */
public class GetTaskListCommand extends AbstractGetObjectBaseCommand implements Command {

    private static final long serialVersionUID = -1627380259541998349L;

    static final Log log = LogFactory.getLog(GetTaskListCommand.class);

    private String[] actor;

    public GetTaskListCommand(String[] actor) {
        setActor(actor);
    }

    public GetTaskListCommand(String actor, boolean includeVariables) {
        super(includeVariables, false);
        setActor(actor);
    }

    public GetTaskListCommand(String actor, String[] variablesToInclude) {
        super(variablesToInclude);
        setActor(actor);
    }

    public Object execute(JbpmContext jbpmContext) throws Exception {
        setJbpmContext(jbpmContext);
        List result = null;
        if (actor == null || actor.length == 0)
            result = jbpmContext.getTaskList();
        else {
            result = new ArrayList();
            for (int i = 0; i < actor.length; i++) {
                result.addAll(jbpmContext.getTaskList(actor[i]));                
            }
            result.addAll(jbpmContext.getGroupTaskList(Arrays.asList(actor)));
        }

        return retrieveTaskInstanceDetails(result);
    }

    /**
     * access everything on all TaskInstance objects, which is not in the
     * default fetch group from hibernate, but needs to be accesible from the
     * client
     * 
     * overwrite this, if you need more details in your client
     */
    public List retrieveTaskInstanceDetails(List taskInstanceList) {
        for (Iterator iter = taskInstanceList.iterator(); iter.hasNext();) {
            retrieveTaskInstanceDetails((TaskInstance) iter.next());
        }
        return taskInstanceList;
    }

    public String[] getActor() {
        return actor;
    }

    public void setActor(String actor) {
        this.actor = new String[] { actor };
    }

    public void setActor(String[] actor) {
        this.actor = actor;
    }
}