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* 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.serviceops;
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.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 <field-to-result> element.
*
* @see <a href="https://cwiki.apache.org/confluence/display/OFBADMIN/Mini+Language+-+minilang+-+simple-method+-+Reference">Mini-language Reference</a>
*/
public final class FieldToResult extends MethodOperation {
public static final String module = FieldToResult.class.getName();
private final FlexibleMapAccessor<Object> fieldFma;
private final FlexibleMapAccessor<Object> resultFma;
public FieldToResult(Element element, SimpleMethod simpleMethod) throws MiniLangException {
super(element, simpleMethod);
if (MiniLangValidate.validationOn()) {
MiniLangValidate.attributeNames(simpleMethod, element, "field", "result-name");
MiniLangValidate.requiredAttributes(simpleMethod, element, "field");
MiniLangValidate.expressionAttributes(simpleMethod, element, "field", "result-name");
MiniLangValidate.noChildElements(simpleMethod, element);
}
this.fieldFma = FlexibleMapAccessor.getInstance(element.getAttribute("field"));
String resultNameAttribute = element.getAttribute("result-name");
if (resultNameAttribute.length() == 0) {
this.resultFma = this.fieldFma;
} else {
this.resultFma = FlexibleMapAccessor.getInstance(resultNameAttribute);
}
}
@Override
public boolean exec(MethodContext methodContext) throws MiniLangException {
Object fieldVal = this.fieldFma.get(methodContext.getEnvMap());
if (fieldVal != null) {
if (this.resultFma.containsNestedExpression()) {
/*
* Replace FMA nested expression functionality with our own.
* The nested expression must be evaluated once using the
* method context, [methodContext.getEnvMap()] then again to
* place the value in the result Map [methodContext.getResults()].
*/
FlexibleStringExpander fse = FlexibleStringExpander.getInstance(this.resultFma.getOriginalName());
String expression = fse.expandString(methodContext.getEnvMap());
FlexibleMapAccessor<Object> resultFma = FlexibleMapAccessor.getInstance(expression);
resultFma.put(methodContext.getResults(), fieldVal);
} else {
this.resultFma.put(methodContext.getResults(), fieldVal);
}
}
return true;
}
@Override
public String toString() {
StringBuilder sb = new StringBuilder("<field-to-result ");
if (!this.fieldFma.isEmpty()) {
sb.append("field=\"").append(this.fieldFma).append("\" ");
}
if (!this.resultFma.isEmpty()) {
sb.append("result-name=\"").append(this.resultFma).append("\" ");
}
sb.append("/>");
return sb.toString();
}
/**
* A factory for the &lt;field-to-request&gt; element.
*/
public static final class FieldToResultFactory implements Factory<FieldToResult> {
@Override
public FieldToResult createMethodOperation(Element element, SimpleMethod simpleMethod) throws MiniLangException {
return new FieldToResult(element, simpleMethod);
}
@Override
public String getName() {
return "field-to-result";
}
}
}