/*
* 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.synapse.commons.evaluators.config;
import org.apache.synapse.commons.evaluators.Evaluator;
import org.apache.synapse.commons.evaluators.EvaluatorException;
import org.apache.synapse.commons.evaluators.EqualEvaluator;
import org.apache.synapse.commons.evaluators.EvaluatorConstants;
import org.apache.synapse.commons.evaluators.source.SourceTextRetriever;
import org.apache.axiom.om.OMElement;
import org.apache.axiom.om.OMAttribute;
import javax.xml.namespace.QName;
/**
* <p> This factory creates a {@link EqualEvaluator}. This factory expects the
* following XML configuration.</p>
* <pre>
* <equal type="header | param | url" source="" value=""/>
* </pre>
*/
public class EqualFactory extends TextProcessingEvaluatorFactory {
public Evaluator create(OMElement e) throws EvaluatorException {
EqualEvaluator equal = new EqualEvaluator();
SourceTextRetriever textRetriever = getSourceTextRetriever(e);
equal.setTextRetriever(textRetriever);
OMAttribute valueAttr = e.getAttribute(new QName(EvaluatorConstants.VALUE));
if (valueAttr == null) {
handleException(EvaluatorConstants.VALUE + " attribute is required");
return null;
}
equal.setValue(valueAttr.getAttributeValue());
return equal;
}
}