Main.java Source code

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Here is the source code for Main.java

Source

//package com.java2s;
/*
 * Copyright 2006-2010 the original author or authors.
 *
 * Licensed 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 java.util.*;
import java.util.Map.Entry;

public class Main {
    /** Dynamic namespace prefix suffix */
    public static final String DYNAMIC_NS_START = "{";
    public static final String DYNAMIC_NS_END = "}";

    /**
     * Replaces all dynamic namespaces in a XPath expression with respective prefixes 
     * in namespace map.
     * 
     * XPath: <code>/{http://sample.org/foo}foo/{http://sample.org/bar}bar</code> 
     * results in <code>/ns1:foo/ns2:bar</code> where the namespace map contains ns1 and ns2.
     * 
     * @param expression
     * @param namespaces
     * @return
     */
    public static String replaceDynamicNamespaces(String expression, Map<String, String> namespaces) {
        String expressionResult = expression;

        for (Entry<String, String> namespaceEntry : namespaces.entrySet()) {
            if (expressionResult.contains(DYNAMIC_NS_START + namespaceEntry.getValue() + DYNAMIC_NS_END)) {
                expressionResult = expressionResult.replaceAll("\\" + DYNAMIC_NS_START
                        + namespaceEntry.getValue().replace(".", "\\.") + "\\" + DYNAMIC_NS_END,
                        namespaceEntry.getKey() + ":");
            }
        }

        return expressionResult;
    }
}