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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.tuscany.sca.contribution.processor;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Iterator;
import java.util.List;
import java.util.Stack;
import javax.xml.namespace.NamespaceContext;
public class TuscanyNamespaceContext implements NamespaceContext {
private Stack<List<String>[]> context = null;
public TuscanyNamespaceContext(Stack<List<String>[]> context) {
this.context = context;
}
public String getNamespaceURI(String prefix) {
if (prefix == null) {
throw new IllegalArgumentException();
}
return (String)getResult("getNSUri", prefix);
}
public String getPrefix(String namespaceURI) {
if (namespaceURI == null) {
throw new IllegalArgumentException();
}
return (String)getResult("getPrefix", namespaceURI);
}
@SuppressWarnings("unchecked")
public Iterator<String> getPrefixes(String namespaceURI) {
if (namespaceURI == null) {
throw new IllegalArgumentException();
}
Iterator<String> iterator = (Iterator<String>)getResult("getPrefixes", namespaceURI);
return iterator;
}
/*
* Generic method to Iterate through the Stack and return required result(s)
*/
private Object getResult(String operation, String arg) {
List<String>[] contextList = null;
Iterator<String> prefItr = null;
Iterator<String> uriItr = null;
List<String> list = new ArrayList<String>();
String toCompare = null;
String tempPrefix = null;
String tempUri = null;
for (int i = context.size() - 1; i >= 0; i--) {
contextList = context.get(i);
prefItr = contextList[0].iterator();
uriItr = contextList[1].iterator();
while (uriItr.hasNext()) {
tempPrefix = prefItr.next();
tempUri = uriItr.next();
if (operation.equalsIgnoreCase("getNSUri")) {
toCompare = tempPrefix;
} else if (operation.equalsIgnoreCase("getPrefix")) {
toCompare = tempUri;
} else if (operation.equalsIgnoreCase("getPrefixes")) {
toCompare = tempUri;
}
if (toCompare != null && arg.equalsIgnoreCase(toCompare)) {
if (operation.equalsIgnoreCase("getNSUri")) {
return tempUri;
} else if (operation.equalsIgnoreCase("getPrefix")) {
return tempPrefix;
} else if (operation.equalsIgnoreCase("getPrefixes")) {
list.add(tempPrefix);
}
}
}
}
if (operation.equalsIgnoreCase("getPrefixes")) {
return Collections.unmodifiableList(list).iterator();
}
return null;
}
} //end of Class
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