wfexecutionobjectimpl.java

Sequoia ERP是一个真正的企业级开源ERP解决方案。它提供的模块包括：电子商务应用(e-commerce), POS系统(point of sales),知识管理,存货与仓库管理

/*
 * $Id: WfExecutionObjectImpl.java 5462 2005-08-05 18:35:48Z jonesde $
 *
 * Copyright (c) 2001, 2002 The Open For Business Project - www.ofbiz.org
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included
 * in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
 * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
 * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT
 * OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR
 * THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 *
 */
package org.ofbiz.workflow.impl;

import java.io.FileNotFoundException;
import java.io.IOException;
import java.sql.Timestamp;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Date;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;

import org.ofbiz.base.util.BshUtil;
import org.ofbiz.base.util.Debug;
import org.ofbiz.base.util.ObjectType;
import org.ofbiz.base.util.UtilMisc;
import org.ofbiz.base.util.string.FlexibleStringExpander;
import org.ofbiz.entity.GenericDelegator;
import org.ofbiz.entity.GenericEntityException;
import org.ofbiz.entity.GenericValue;
import org.ofbiz.entity.serialize.SerializeException;
import org.ofbiz.entity.serialize.XmlSerializer;
import org.ofbiz.service.DispatchContext;
import org.ofbiz.service.GenericDispatcher;
import org.ofbiz.service.GenericServiceException;
import org.ofbiz.service.LocalDispatcher;
import org.ofbiz.workflow.AlreadySuspended;
import org.ofbiz.workflow.CannotResume;
import org.ofbiz.workflow.CannotStop;
import org.ofbiz.workflow.CannotSuspend;
import org.ofbiz.workflow.EvaluationException;
import org.ofbiz.workflow.HistoryNotAvailable;
import org.ofbiz.workflow.InvalidData;
import org.ofbiz.workflow.InvalidState;
import org.ofbiz.workflow.NotRunning;
import org.ofbiz.workflow.NotSuspended;
import org.ofbiz.workflow.TransitionCondition;
import org.ofbiz.workflow.TransitionNotAllowed;
import org.ofbiz.workflow.UpdateNotAllowed;
import org.ofbiz.workflow.WfException;
import org.ofbiz.workflow.WfExecutionObject;
import org.ofbiz.workflow.WfUtil;

/**
 * WfExecutionObjectImpl - Workflow Execution Object implementation
 *
 * @author     <a href="mailto:[e-mail]">Andy Zeneski</a>
 * @author     David Ostrovsky ([e-mail]) 
 * @version    $Rev: 5462 $
 * @since      2.0
 */
public abstract class WfExecutionObjectImpl implements WfExecutionObject {

    public static final String module = WfExecutionObjectImpl.class.getName();
    public static final String dispatcherName = "WFDispatcher";    

    protected String packageId = null;
    protected String packageVersion = null;
    protected String processId = null;
    protected String processVersion = null;
    protected String activityId = null;
    protected String workEffortId = null;
    protected GenericDelegator delegator = null;
    protected List history = null;

    public WfExecutionObjectImpl(GenericValue valueObject, String parentId) throws WfException {
        this.packageId = valueObject.getString("packageId");
        this.packageVersion = valueObject.getString("packageVersion");
        this.processId = valueObject.getString("processId");
        this.processVersion = valueObject.getString("processVersion");
        if (valueObject.getEntityName().equals("WorkflowActivity")) {
            this.activityId = valueObject.getString("activityId");
        } else {
            this.activityId = null;
        }
        this.delegator = valueObject.getDelegator();
        createRuntime(parentId);
    }

    public WfExecutionObjectImpl(GenericDelegator delegator, String workEffortId) throws WfException {
        this.delegator = delegator;
        this.workEffortId = workEffortId;
        this.packageId = getRuntimeObject().getString("workflowPackageId");
        this.packageVersion = getRuntimeObject().getString("workflowPackageVersion");
        this.processId = getRuntimeObject().getString("workflowProcessId");
        this.processVersion = getRuntimeObject().getString("workflowProcessVersion");
        this.activityId = getRuntimeObject().getString("workflowActivityId");
        this.history = null;
        if (Debug.verboseOn()) Debug.logVerbose(" Package ID: " + packageId + " V: " + packageVersion, module);
        if (Debug.verboseOn()) Debug.logVerbose(" Process ID: " + processId + " V: " + processVersion, module);
        if (Debug.verboseOn()) Debug.logVerbose("Activity ID: " + activityId, module);
    }
    
    // creates the stored runtime workeffort data.
    private void createRuntime(String parentId) throws WfException {
        GenericValue valueObject = getDefinitionObject();
        GenericValue dataObject = null;

        workEffortId = getDelegator().getNextSeqId("WorkEffort").toString();
        Map dataMap = new HashMap();
        String weType = activityId != null ? "ACTIVITY" : "WORK_FLOW";

        dataMap.put("workEffortId", workEffortId);
        dataMap.put("workEffortTypeId", weType);
        dataMap.put("workEffortParentId", parentId);
        dataMap.put("workflowPackageId", packageId);
        dataMap.put("workflowPackageVersion", packageVersion);
        dataMap.put("workflowProcessId", processId);
        dataMap.put("workflowProcessVersion", processVersion);
        dataMap.put("workEffortName", valueObject.getString("objectName"));
        dataMap.put("description", valueObject.getString("description"));
        dataMap.put("createdDate", new Timestamp((new Date()).getTime()));
        dataMap.put("estimatedStartDate", dataMap.get("createdDate"));
        dataMap.put("lastModifiedDate", dataMap.get("createdDate"));
        dataMap.put("priority", valueObject.getLong("objectPriority"));
        dataMap.put("currentStatusId", WfUtil.getOFBStatus("open.not_running.not_started"));
        if (activityId != null)
            dataMap.put("workflowActivityId", activityId);
        if (activityId != null && parentId != null) {
            GenericValue parentWorkEffort = getWorkEffort(parentId);
            if (parentWorkEffort != null && parentWorkEffort.get("sourceReferenceId") != null)
                dataMap.put("sourceReferenceId", parentWorkEffort.getString("sourceReferenceId"));
        }

        try {            
            dataObject = getDelegator().makeValue("WorkEffort", dataMap);            
            getDelegator().create(dataObject);
            
            String objectId = activityId != null ? activityId : processId;
            if (Debug.verboseOn()) Debug.logVerbose("Created new runtime object [" + objectId + "] (Workeffort: " + runtimeKey() + ")", module);
        } catch (GenericEntityException e) {
            throw new WfException(e.getMessage(), e);
        }
    }
    
    protected void parseDescriptions(Map parseContext) throws WfException {
        GenericValue runtime = getRuntimeObject();
        String name = runtime.getString("workEffortName");
        String desc = runtime.getString("description");
        String nameExp = FlexibleStringExpander.expandString(name, parseContext);
        String descExp = FlexibleStringExpander.expandString(desc, parseContext);
        
        boolean changed = false;
        if (nameExp != null && !nameExp.equals(name)) {
            changed = true;
            runtime.set("workEffortName", nameExp);
        }
        if (descExp != null && !descExp.equals(desc)) {
            changed = true;
            runtime.set("description", descExp);
        }
        
        if (changed) {
            try {
                runtime.store();
            } catch (GenericEntityException e) {
                throw new WfException(e.getMessage(), e);
            }
        }
    }

    /**
     * @see org.ofbiz.workflow.WfExecutionObject#name()
     */   
    public String name() throws WfException {
        return getRuntimeObject().getString("workEffortName");
    }
   
    /**
     * @see org.ofbiz.workflow.WfExecutionObject#setName(java.lang.String)
     */
    public void setName(String newValue) throws WfException {
        GenericValue dataObject = getRuntimeObject();

        try {
            dataObject.set("workEffortName", newValue);
            dataObject.store();
        } catch (GenericEntityException e) {
            throw new WfException(e.getMessage(), e);
        }
    }
   
    /**
     * @see org.ofbiz.workflow.WfExecutionObject#setPriority(long)
     */
    public void setPriority(long newValue) throws WfException {
        GenericValue dataObject = getRuntimeObject();

        try {
            dataObject.set("priority", new Long(newValue));
            dataObject.store();
        } catch (GenericEntityException e) {
            throw new WfException(e.getMessage(), e);
        }
    }

    /**
     * @see org.ofbiz.workflow.WfExecutionObject#priority()
     */
    public long priority() throws WfException {
        if (getRuntimeObject().get("priority") != null)
            return getRuntimeObject().getLong("priority").longValue();
        return 0; // change to default priority value
    }

    /**
     * @see org.ofbiz.workflow.WfExecutionObject#state()
     */
    public String state() throws WfException {
        GenericValue statusObj = null;
        String stateStr = null;

        try {
            statusObj = getRuntimeObject().getRelatedOne("CurrentStatusItem");
        } catch (GenericEntityException e) {
            throw new WfException(e.getMessage(), e);
        }
        if (statusObj != null)
            stateStr = statusObj.getString("statusCode");

        if (stateStr == null)
            throw new WfException("Stored state is not a valid type.");
            
        if (Debug.verboseOn()) Debug.logVerbose("Current state: " + stateStr, module);            
        return stateStr;
    }

    /**
     * @see org.ofbiz.workflow.WfExecutionObject#validStates()
     */
    public List validStates() throws WfException {
        String statesArr[] = {"open.running", "open.not_running.not_started", "open.not_running.suspended",
                "closed.completed", "closed.terminated", "closed.aborted"};
        ArrayList possibleStates = new ArrayList(Arrays.asList(statesArr));
        String currentState = state();

        if (currentState.startsWith("closed"))
            return new ArrayList();
        if (!currentState.startsWith("open"))
            throw new WfException("Currently in an unknown state.");
        if (currentState.equals("open.running")) {
            possibleStates.remove("open.running");
            possibleStates.remove("open.not_running.not_started");
            return possibleStates;
        }
        if (currentState.equals("open.not_running.not_started")) {
            possibleStates.remove("open.not_running.not_started");
            possibleStates.remove("open.not_running.suspended");
            possibleStates.remove("closed.completed");
            possibleStates.remove("closed.terminated");            
            return possibleStates;
        }
        if (currentState.equals("open.not_running.suspended")) {
            possibleStates.remove("open.not_running.suspended");
            possibleStates.remove("open.not_running.not_started");
            possibleStates.remove("closed.complete");
            possibleStates.remove("closed.terminated");            
            return possibleStates;
        }
        return new ArrayList();
    }

    /**
     * @see org.ofbiz.workflow.WfExecutionObject#howManyHistory()
     */
    public int howManyHistory() throws WfException, HistoryNotAvailable {
        if (history.size() < 1)
            throw new HistoryNotAvailable();
        return history.size();
    }

    /**
     * @see org.ofbiz.workflow.WfExecutionObject#abort()
     */
    public void abort() throws WfException, CannotStop, NotRunning {
        Debug.logInfo("Aborting current state : " + state(), module);
        String stateStr = "closed.aborted";
        
        if (!state().startsWith("open")) {
            throw new NotRunning();
        }
        
        if (!validStates().contains(stateStr)) {
            throw new CannotStop();
        }
                
        changeState(stateStr);
    }

    /**
     * @see org.ofbiz.workflow.WfExecutionObject#whileOpenType()
     */
    public List whileOpenType() throws WfException {
        String[] list = {"running", "not_running"};

        return Arrays.asList(list);
    }

    /**
     * @see org.ofbiz.workflow.WfExecutionObject#whyNotRunningType()
     */
    public List whyNotRunningType() throws WfException {
        String[] list = {"not_started", "suspended"};

        return Arrays.asList(list);
    }

    /**
     * @see org.ofbiz.workflow.WfExecutionObject#runtimeKey()
     */
    public String runtimeKey() throws WfException {
        return getRuntimeObject().getString("workEffortId");
    }

    /**
     * @see org.ofbiz.workflow.WfExecutionObject#key()
     */
    public String key() throws WfException {
        if (activityId != null)
            return activityId;
        else
            return processId;
    }

    /**
     * @see org.ofbiz.workflow.WfExecutionObject#isMemberOfHistory(org.ofbiz.workflow.WfExecutionObject)
     */
    public boolean isMemberOfHistory(WfExecutionObject member) throws WfException {
        return false;
    }

    /**
     * @see org.ofbiz.workflow.WfExecutionObject#setProcessContext(java.util.Map)
     */
    public void setProcessContext(Map newValue) throws WfException, InvalidData, UpdateNotAllowed {            
        setSerializedData(newValue);
    }

    /**
     * @see org.ofbiz.workflow.WfExecutionObject#setProcessContext(java.lang.String)
     */