/*
* 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.config.xml;
import org.apache.axiom.om.OMAttribute;
import org.apache.axiom.om.OMElement;
import org.apache.synapse.Mediator;
import org.apache.synapse.SynapseException;
import org.apache.synapse.mediators.base.SequenceMediator;
import javax.xml.namespace.QName;
import java.util.Properties;
/**
* Factory for {@link SequenceMediator} instances.
* <p>
* It follows the following configuration:
*
* <pre>
* <sequence name="string" [onError="string"] [trace="enable|disable"]>
* mediator+
* </sequence>
* </pre>
*
* OR
*
* <pre>
* <sequence key="name"/>
* </pre>
*/
public class SequenceMediatorFactory extends AbstractListMediatorFactory {
private static final QName SEQUENCE_Q
= new QName(XMLConfigConstants.SYNAPSE_NAMESPACE, "sequence");
public QName getTagQName() {
return SEQUENCE_Q;
}
public SequenceMediator createAnonymousSequence(OMElement elem, Properties properties) {
SequenceMediator seqMediator = new SequenceMediator();
OMAttribute e = elem.getAttribute(ATT_ONERROR);
if (e != null) {
seqMediator.setErrorHandler(e.getAttributeValue());
}
processAuditStatus(seqMediator, elem);
OMElement descElem = elem.getFirstChildWithName(DESCRIPTION_Q);
if (descElem != null) {
seqMediator.setDescription(descElem.getText());
}
addChildren(elem, seqMediator, properties);
return seqMediator;
}
protected Mediator createSpecificMediator(OMElement elem, Properties properties) {
SequenceMediator seqMediator = new SequenceMediator();
OMAttribute n = elem.getAttribute(ATT_NAME);
OMAttribute e = elem.getAttribute(ATT_ONERROR);
if (n != null) {
seqMediator.setName(n.getAttributeValue());
if (e != null) {
seqMediator.setErrorHandler(e.getAttributeValue());
}
processAuditStatus(seqMediator, elem);
addChildren(elem, seqMediator, properties);
} else {
n = elem.getAttribute(ATT_KEY);
if (n != null) {
seqMediator.setKey(n.getAttributeValue());
if (e != null) {
String msg = "A sequence mediator with a reference to another " +
"sequence can not have 'ErrorHandler'";
log.error(msg);
throw new SynapseException(msg);
}
} else {
String msg = "A sequence mediator should be a named sequence or a reference " +
"to another sequence (i.e. a name attribute or key attribute is required)";
log.error(msg);
throw new SynapseException(msg);
}
}
return seqMediator;
}
}