| /******************************************************************************* |
| * 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.text.MessageFormat; |
| import java.util.List; |
| |
| import org.apache.ofbiz.base.util.collections.FlexibleMapAccessor; |
| import org.apache.ofbiz.base.util.string.FlexibleStringExpander; |
| 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.MethodContext; |
| import org.apache.ofbiz.minilang.method.MethodOperation; |
| import org.w3c.dom.Element; |
| |
| /** |
| * Implements the <string-append> element. |
| * |
| * @see <a href="https://cwiki.apache.org/confluence/display/OFBADMIN/Mini+Language+-+minilang+-+simple-method+-+Reference">Mini-language Referenc</a> |
| */ |
| public final class StringAppend extends MethodOperation { |
| |
| private final FlexibleMapAccessor<List<? extends Object>> argListFma; |
| private final FlexibleMapAccessor<String> fieldFma; |
| private final FlexibleStringExpander prefixFse; |
| private final FlexibleStringExpander stringFse; |
| private final FlexibleStringExpander suffixFse; |
| |
| public StringAppend(Element element, SimpleMethod simpleMethod) throws MiniLangException { |
| super(element, simpleMethod); |
| if (MiniLangValidate.validationOn()) { |
| MiniLangValidate.attributeNames(simpleMethod, element, "field", "arg-list", "prefix", "string", "suffix"); |
| MiniLangValidate.requiredAttributes(simpleMethod, element, "field", "string"); |
| MiniLangValidate.expressionAttributes(simpleMethod, element, "field", "arg-list"); |
| MiniLangValidate.noChildElements(simpleMethod, element); |
| } |
| argListFma = FlexibleMapAccessor.getInstance(element.getAttribute("arg-list")); |
| fieldFma = FlexibleMapAccessor.getInstance(element.getAttribute("field")); |
| prefixFse = FlexibleStringExpander.getInstance(element.getAttribute("prefix")); |
| stringFse = FlexibleStringExpander.getInstance(element.getAttribute("string")); |
| suffixFse = FlexibleStringExpander.getInstance(element.getAttribute("suffix")); |
| } |
| |
| @Override |
| public boolean exec(MethodContext methodContext) throws MiniLangException { |
| String value = stringFse.expandString(methodContext.getEnvMap()); |
| List<? extends Object> argList = argListFma.get(methodContext.getEnvMap()); |
| if (argList != null) { |
| try { |
| value = MessageFormat.format(value, argList.toArray()); |
| } catch (IllegalArgumentException e) { |
| throw new MiniLangRuntimeException("Exception thrown while formatting the string attribute: " + e.getMessage(), this); |
| } |
| } |
| if (!value.isEmpty()) { |
| String prefixValue = prefixFse.expandString(methodContext.getEnvMap()); |
| String suffixValue = suffixFse.expandString(methodContext.getEnvMap()); |
| StringBuilder newValue = new StringBuilder(); |
| String oldValue = fieldFma.get(methodContext.getEnvMap()); |
| if (oldValue != null) { |
| newValue.append(oldValue); |
| } |
| newValue.append(prefixValue).append(value).append(suffixValue); |
| fieldFma.put(methodContext.getEnvMap(), newValue.toString()); |
| } |
| return true; |
| } |
| |
| @Override |
| public String toString() { |
| StringBuilder sb = new StringBuilder("<string-append "); |
| sb.append("field=\"").append(this.fieldFma).append("\" "); |
| sb.append("string=\"").append(this.stringFse).append("\" "); |
| if (!this.argListFma.isEmpty()) { |
| sb.append("arg-list=\"").append(this.argListFma).append("\" "); |
| } |
| if (!this.prefixFse.isEmpty()) { |
| sb.append("prefix=\"").append(this.prefixFse).append("\" "); |
| } |
| if (!this.suffixFse.isEmpty()) { |
| sb.append("suffix=\"").append(this.suffixFse).append("\" "); |
| } |
| sb.append("/>"); |
| return sb.toString(); |
| } |
| |
| /** |
| * A factory for the <string-append> element. |
| */ |
| public static final class StringAppendFactory implements Factory<StringAppend> { |
| @Override |
| public StringAppend createMethodOperation(Element element, SimpleMethod simpleMethod) throws MiniLangException { |
| return new StringAppend(element, simpleMethod); |
| } |
| |
| @Override |
| public String getName() { |
| return "string-append"; |
| } |
| } |
| } |