/*
* 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.wso2.carbon.rulecep.commons.descriptions.rule.mediator;
import org.apache.axiom.om.OMElement;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.wso2.carbon.rulecep.commons.CommonsConstants;
import org.wso2.carbon.rulecep.commons.LoggedRuntimeException;
import org.wso2.carbon.rulecep.commons.descriptions.QNameFactory;
import org.wso2.carbon.rulecep.commons.descriptions.XPathFactory;
import org.wso2.carbon.rulecep.commons.descriptions.rule.RuleSetDescription;
import org.wso2.carbon.rulecep.commons.descriptions.service.ExtensibleConfiguration;
import org.wso2.carbon.rulecep.commons.descriptions.service.ExtensionBuilder;
import javax.xml.namespace.QName;
/**
* ConfigurationExtensionBuilder for building extensions in the rule set configuration used in the Mediator
*/
public class MediatorRuleSetExtensionBuilder implements ExtensionBuilder {
private static Log log = LogFactory.getLog(MediatorRuleSetExtensionBuilder.class);
public void build(ExtensibleConfiguration extensibleConfiguration,
OMElement ruleSet, XPathFactory xPathFactory) {
if (!(extensibleConfiguration instanceof RuleSetDescription)) {
throw new LoggedRuntimeException("Invalid rule configuration," +
"expect RuleSetDescription.", log);
}
RuleSetDescription description = (RuleSetDescription) extensibleConfiguration;
QName parentQName = ruleSet.getQName();
QNameFactory qNameFactory = QNameFactory.getInstance();
QName sourceQName = qNameFactory.createQName(CommonsConstants.ELE_SOURCE,
parentQName);
OMElement sourceElement = ruleSet.getFirstChildWithName(sourceQName);
if (sourceElement == null) {
throw new LoggedRuntimeException("Invalid configuration. " +
"The rule set source cannot be found.", log);
}
String ruleKey = sourceElement.getAttributeValue(CommonsConstants.ATT_KEY_Q);
if (ruleKey != null && !"".equals(ruleKey)) {
description.setKey(ruleKey.trim());
} else {
OMElement inLinedSource = sourceElement.getFirstElement();
if (inLinedSource == null) {
String inLinedText = sourceElement.getText();
if (inLinedText == null || "".equals(inLinedText.trim())) {
throw new LoggedRuntimeException("The rule set source cannot be found " +
"from either in-lined or key. It is required.", log);
} else {
description.setRuleSource(inLinedText.trim());
}
} else {
description.setRuleSource(inLinedSource);
}
}
}
}