| /******************************************************************************* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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.apache.ofbiz.minilang.method.envops; |
| |
| import java.lang.reflect.Constructor; |
| import java.util.ArrayList; |
| import java.util.Collections; |
| import java.util.List; |
| |
| import org.apache.ofbiz.base.util.Debug; |
| import org.apache.ofbiz.base.util.ObjectType; |
| import org.apache.ofbiz.base.util.UtilXml; |
| import org.apache.ofbiz.base.util.collections.FlexibleMapAccessor; |
| import org.apache.ofbiz.minilang.MiniLangException; |
| import org.apache.ofbiz.minilang.MiniLangRuntimeException; |
| import org.apache.ofbiz.minilang.MiniLangValidate; |
| import org.apache.ofbiz.minilang.SimpleMethod; |
| import org.apache.ofbiz.minilang.method.FieldObject; |
| import org.apache.ofbiz.minilang.method.MethodContext; |
| import org.apache.ofbiz.minilang.method.MethodObject; |
| import org.apache.ofbiz.minilang.method.MethodOperation; |
| import org.apache.ofbiz.minilang.method.StringObject; |
| import org.w3c.dom.Element; |
| |
| /** |
| * Implements the <create-object> element. |
| * |
| * @see <a href="https://cwiki.apache.org/confluence/display/OFBADMIN/Mini+Language+-+minilang+-+simple-method+-+Reference">Mini-language Referenc</a> |
| */ |
| public final class CreateObject extends MethodOperation { |
| |
| public static final String module = CreateObject.class.getName(); |
| |
| private final String className; |
| private final Class<?> targetClass; |
| private final FlexibleMapAccessor<Object> fieldFma; |
| private final List<MethodObject<?>> parameters; |
| |
| public CreateObject(Element element, SimpleMethod simpleMethod) throws MiniLangException { |
| super(element, simpleMethod); |
| if (MiniLangValidate.validationOn()) { |
| MiniLangValidate.handleError("<create-object> element is deprecated (use <script>)", simpleMethod, element); |
| MiniLangValidate.attributeNames(simpleMethod, element, "class-name", "field"); |
| MiniLangValidate.expressionAttributes(simpleMethod, element, "field"); |
| MiniLangValidate.requiredAttributes(simpleMethod, element, "class-name", "field"); |
| MiniLangValidate.childElements(simpleMethod, element, "string", "field"); |
| } |
| className = element.getAttribute("class-name"); |
| Class<?> targetClass = null; |
| try { |
| targetClass = ObjectType.loadClass(this.className); |
| } catch (ClassNotFoundException e) { |
| MiniLangValidate.handleError("Class not found with name " + this.className, simpleMethod, element); |
| } |
| this.targetClass = targetClass; |
| fieldFma = FlexibleMapAccessor.getInstance(element.getAttribute("field")); |
| List<? extends Element> parameterElements = UtilXml.childElementList(element); |
| if (parameterElements.size() > 0) { |
| ArrayList<MethodObject<?>> parameterList = new ArrayList<MethodObject<?>>(parameterElements.size()); |
| for (Element parameterElement : parameterElements) { |
| if ("string".equals(parameterElement.getNodeName())) { |
| parameterList.add(new StringObject(parameterElement, simpleMethod)); |
| } else if ("field".equals(parameterElement.getNodeName())) { |
| parameterList.add(new FieldObject<Object>(parameterElement, simpleMethod)); |
| } |
| } |
| parameterList.trimToSize(); |
| this.parameters = Collections.unmodifiableList(parameterList); |
| } else { |
| this.parameters = null; |
| } |
| } |
| |
| @Override |
| public boolean exec(MethodContext methodContext) throws MiniLangException { |
| Object[] args = null; |
| Class<?>[] parameterTypes = null; |
| if (parameters != null) { |
| args = new Object[parameters.size()]; |
| parameterTypes = new Class<?>[parameters.size()]; |
| int i = 0; |
| for (MethodObject<?> methodObjectDef : parameters) { |
| args[i] = methodObjectDef.getObject(methodContext); |
| Class<?> typeClass = null; |
| try { |
| typeClass = methodObjectDef.getTypeClass(methodContext); |
| } catch (ClassNotFoundException e) { |
| String errMsg = "ERROR: Could not complete the " + simpleMethod.getShortDescription() + " process [Parameter type not found with name " + methodObjectDef.getTypeName() + "]"; |
| Debug.logWarning(e, errMsg, module); |
| simpleMethod.addErrorMessage(methodContext, errMsg); |
| return false; |
| } |
| parameterTypes[i] = typeClass; |
| i++; |
| } |
| } |
| try { |
| Constructor<?> constructor = targetClass.getConstructor(parameterTypes); |
| fieldFma.put(methodContext.getEnvMap(),constructor.newInstance(args)); |
| } catch (Exception e) { |
| throw new MiniLangRuntimeException(e, this); |
| } |
| return true; |
| } |
| |
| @Override |
| public String toString() { |
| StringBuilder sb = new StringBuilder("<create-object "); |
| sb.append("class-name=\"").append(this.className).append("\" "); |
| sb.append("field=\"").append(this.fieldFma).append("\" />"); |
| return sb.toString(); |
| } |
| |
| /** |
| * A factory for the <create-object> element. |
| */ |
| public static final class CreateObjectFactory implements Factory<CreateObject> { |
| @Override |
| public CreateObject createMethodOperation(Element element, SimpleMethod simpleMethod) throws MiniLangException { |
| return new CreateObject(element, simpleMethod); |
| } |
| |
| @Override |
| public String getName() { |
| return "create-object"; |
| } |
| } |
| } |