modelscreenaction.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: ModelScreenAction.java 6082 2005-11-06 06:32:16Z jonesde $
 *
 * Copyright (c) 2004-2005 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.widget.screen;

import java.io.Serializable;
import java.text.MessageFormat;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import java.util.Locale;
import java.util.Map;
import java.util.regex.PatternSyntaxException;

import javax.servlet.ServletContext;
import javax.servlet.http.HttpSession;

import javolution.util.FastList;
import javolution.util.FastMap;

import org.ofbiz.base.util.BshUtil;
import org.ofbiz.base.util.Debug;
import org.ofbiz.base.util.GeneralException;
import org.ofbiz.base.util.ObjectType;
import org.ofbiz.base.util.StringUtil;
import org.ofbiz.base.util.UtilProperties;
import org.ofbiz.base.util.UtilValidate;
import org.ofbiz.base.util.UtilXml;
import org.ofbiz.base.util.collections.FlexibleMapAccessor;
import org.ofbiz.base.util.collections.ResourceBundleMapWrapper;
import org.ofbiz.base.util.string.FlexibleStringExpander;
import org.ofbiz.entity.GenericValue;
import org.ofbiz.entity.GenericEntityException;
import org.ofbiz.entity.finder.ByAndFinder;
import org.ofbiz.entity.finder.ByConditionFinder;
import org.ofbiz.entity.finder.EntityFinderUtil;
import org.ofbiz.entity.finder.PrimaryKeyFinder;
import org.ofbiz.service.GenericServiceException;
import org.ofbiz.service.ModelService;
import org.w3c.dom.Element;


/**
 * Widget Library - Screen model class
 *
 * @author     <a href="mailto:[e-mail]">David E. Jones</a>
 * @version    $Rev: 6082 $
 * @since      3.1
 */
public abstract class ModelScreenAction implements Serializable {
    public static final String module = ModelScreenAction.class.getName();

    protected ModelScreen modelScreen;

    public ModelScreenAction(ModelScreen modelScreen, Element actionElement) {
        this.modelScreen = modelScreen;
        if (Debug.verboseOn()) Debug.logVerbose("Reading Screen action with name: " + actionElement.getNodeName(), module);
    }
    
    public abstract void runAction(Map context) throws GeneralException;
    
    public static List readSubActions(ModelScreen modelScreen, Element parentElement) {
        List actions = FastList.newInstance();
        
        List actionElementList = UtilXml.childElementList(parentElement);
        Iterator actionElementIter = actionElementList.iterator();
        while (actionElementIter.hasNext()) {
            Element actionElement = (Element) actionElementIter.next();
            if ("set".equals(actionElement.getNodeName())) {
                actions.add(new SetField(modelScreen, actionElement));
            } else if ("property-map".equals(actionElement.getNodeName())) {
                actions.add(new PropertyMap(modelScreen, actionElement));
            } else if ("property-to-field".equals(actionElement.getNodeName())) {
                actions.add(new PropertyToField(modelScreen, actionElement));
            } else if ("script".equals(actionElement.getNodeName())) {
                actions.add(new Script(modelScreen, actionElement));
            } else if ("service".equals(actionElement.getNodeName())) {
                actions.add(new Service(modelScreen, actionElement));
            } else if ("entity-one".equals(actionElement.getNodeName())) {
                actions.add(new EntityOne(modelScreen, actionElement));
            } else if ("entity-and".equals(actionElement.getNodeName())) {
                actions.add(new EntityAnd(modelScreen, actionElement));
            } else if ("entity-condition".equals(actionElement.getNodeName())) {
                actions.add(new EntityCondition(modelScreen, actionElement));
            } else if ("get-related-one".equals(actionElement.getNodeName())) {
                actions.add(new GetRelatedOne(modelScreen, actionElement));
            } else if ("get-related".equals(actionElement.getNodeName())) {
                actions.add(new GetRelated(modelScreen, actionElement));
            } else {
                throw new IllegalArgumentException("Action element not supported with name: " + actionElement.getNodeName());
            }
        }
        
        return actions;
    }
    
    public static void runSubActions(List actions, Map context) throws GeneralException {
        if (actions == null) return;
        
        Iterator actionIter = actions.iterator();
        while (actionIter.hasNext()) {
            ModelScreenAction action = (ModelScreenAction) actionIter.next();
            if (Debug.verboseOn()) Debug.logVerbose("Running screen action " + action.getClass().getName(), module);
            action.runAction(context);
        }
    }
    
    public static class SetField extends ModelScreenAction {
        protected FlexibleMapAccessor field;
        protected FlexibleMapAccessor fromField;
        protected FlexibleStringExpander valueExdr;
        protected FlexibleStringExpander defaultExdr;
        protected FlexibleStringExpander globalExdr;
        protected String type;
        protected String toScope;
        protected String fromScope;
        
        public SetField(ModelScreen modelScreen, Element setElement) {
            super (modelScreen, setElement);
            this.field = new FlexibleMapAccessor(setElement.getAttribute("field"));
            this.fromField = new FlexibleMapAccessor(setElement.getAttribute("from-field"));
            this.valueExdr = new FlexibleStringExpander(setElement.getAttribute("value"));
            this.defaultExdr = new FlexibleStringExpander(setElement.getAttribute("default-value"));
            this.globalExdr = new FlexibleStringExpander(setElement.getAttribute("global"));
            this.type = setElement.getAttribute("type");
            this.toScope = setElement.getAttribute("to-scope");
            this.fromScope = setElement.getAttribute("from-scope");
            if (!this.fromField.isEmpty() && !this.valueExdr.isEmpty()) {
                throw new IllegalArgumentException("Cannot specify a from-field [" + setElement.getAttribute("from-field") + "] and a value [" + setElement.getAttribute("value") + "] on the set action in a screen widget");
            }
        }
        
        public void runAction(Map context) {
            String globalStr = this.globalExdr.expandString(context);
            // default to false
            boolean global = "true".equals(globalStr);
            
            Object newValue = null;
            if (this.fromScope != null && this.fromScope.equals("user")) {
                if (!this.fromField.isEmpty()) {
                    HttpSession session = (HttpSession) context.get("session");
                    newValue = getInMemoryPersistedFromField(session, context);
                    if (Debug.verboseOn()) Debug.logVerbose("In user getting value for field from [" + this.fromField.getOriginalName() + "]: " + newValue, module);
                } else if (!this.valueExdr.isEmpty()) {
                    newValue = this.valueExdr.expandString(context);
                }
            } else if (this.fromScope != null && this.fromScope.equals("application")) {
                if (!this.fromField.isEmpty()) {
                    ServletContext servletContext = (ServletContext) context.get("application");
                    newValue = getInMemoryPersistedFromField(servletContext, context);
                    if (Debug.verboseOn()) Debug.logVerbose("In application getting value for field from [" + this.fromField.getOriginalName() + "]: " + newValue, module);
                } else if (!this.valueExdr.isEmpty()) {
                    newValue = this.valueExdr.expandString(context);
                }
            } else {
                if (!this.fromField.isEmpty()) {
                    newValue = this.fromField.get(context);
                    if (Debug.verboseOn()) Debug.logVerbose("In screen getting value for field from [" + this.fromField.getOriginalName() + "]: " + newValue, module);
                } else if (!this.valueExdr.isEmpty()) {
                    newValue = this.valueExdr.expandString(context);
                }
            }

            // If newValue is still empty, use the default value
            if (ObjectType.isEmpty(newValue) && !this.defaultExdr.isEmpty()) {
                newValue = this.defaultExdr.expandString(context);
            }
            
            if (UtilValidate.isNotEmpty(this.type)) {
                try {
                    newValue = ObjectType.simpleTypeConvert(newValue, this.type, null, null);
                } catch (GeneralException e) {
                    String errMsg = "Could not convert field value for the field: [" + this.field.getOriginalName() + "] to the [" + this.type + "] type for the value [" + newValue + "]: " + e.toString();
                    Debug.logError(e, errMsg, module);
                    throw new IllegalArgumentException(errMsg);
                }
            }
            
            if (this.toScope != null && this.toScope.equals("user")) {
                    String originalName = this.field.getOriginalName();
                    List currentWidgetTrail = (List)context.get("_WIDGETTRAIL_");
                    String newKey = "";
                    if (currentWidgetTrail != null) {
                        newKey = StringUtil.join(currentWidgetTrail, "|");
                    }
                    if (UtilValidate.isNotEmpty(newKey)) {
                        newKey += "|";
                    }