/**
* 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.camel.model.language;
import java.util.Map;
import javax.xml.bind.annotation.XmlAccessType;
import javax.xml.bind.annotation.XmlAccessorType;
import javax.xml.bind.annotation.XmlTransient;
import org.apache.camel.Expression;
import org.apache.camel.Predicate;
import org.apache.camel.spi.NamespaceAware;
import org.apache.camel.spi.RouteContext;
/**
* A useful base class for any expression which may be namespace or XML content aware
* such as {@link XPathExpression} or {@link XQueryExpression}
*
* @version $Revision: 659007 $
*/
@XmlAccessorType(XmlAccessType.FIELD)
public abstract class NamespaceAwareExpression extends ExpressionType implements NamespaceAware {
@XmlTransient
private Map<String, String> namespaces;
public NamespaceAwareExpression() {
}
public NamespaceAwareExpression(String expression) {
super(expression);
}
public Map<String, String> getNamespaces() {
return namespaces;
}
/**
* Injects the XML Namespaces of prefix -> uri mappings
*
* @param namespaces the XML namespaces with the key of prefixes and the value the URIs
*/
public void setNamespaces(Map<String, String> namespaces) {
this.namespaces = namespaces;
}
@Override
protected void configureExpression(RouteContext routeContext, Expression expression) {
configureNamespaceAware(expression);
}
@Override
protected void configurePredicate(RouteContext routeContext, Predicate predicate) {
configureNamespaceAware(predicate);
}
protected void configureNamespaceAware(Object builder) {
if (namespaces != null && builder instanceof NamespaceAware) {
NamespaceAware namespaceAware = (NamespaceAware) builder;
namespaceAware.setNamespaces(namespaces);
}
}
}