Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
/*
 *  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.
 */

import javax.xml.namespace.QName;
import java.util.*;

public class Main {
    /**
     * returns the matching Extension provider for a given QName/namespaceURI+prefix+localName
     * combination
     *
     * @param extensionMap registered extension Map for the corresponding extension provider
     * @param namespaceURI binding namespace in xpath expression
     * @param prefix       binding prefix string in xpath expression
     * @param localName    binding localname string in xpath expression
     * @param <T>          Variable/Function Context Provider Type
     * @return matching Extension provider. returns null if no extension is found for the given
     *         combination
     */
    private static <T> T getMatchingExtensionProvider(Map<QName, T> extensionMap, String namespaceURI,
            String prefix, String localName) {
        QName subject;
        if (localName != null && prefix != null) {
            subject = new QName(namespaceURI, localName, prefix);
        } else if (localName != null) {
            subject = new QName(namespaceURI, localName);
        } else {
            //can't resolve xpath extensions - invalid combination
            return null;
        }

        Set<QName> qNames = extensionMap.keySet();
        for (QName qName : qNames) {
            //check for a match for the given combination for QName registered
            if (subject.equals(qName)) {
                return extensionMap.get(qName);
            }
        }
        //no match found
        return null;

    }
}