org.smartloli.kafka.eagle.plugin.util.DomUtils.java Source code

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Here is the source code for org.smartloli.kafka.eagle.plugin.util.DomUtils.java

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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.smartloli.kafka.eagle.plugin.util;

import java.io.File;
import java.io.FileWriter;
import java.util.List;

import org.dom4j.Document;
import org.dom4j.Element;
import org.dom4j.io.SAXReader;
import org.dom4j.io.XMLWriter;

/**
 * Analysis xml task.
 *
 * @author smartloli
 *
 *         Created by Nov 17, 2015
 */
public class DomUtils {

    public static void getTomcatServerXML(String xml, String modifyPort) throws Exception {
        SAXReader reader = new SAXReader();
        Document document = reader.read(new File(xml));
        Element node = document.getRootElement();
        List<?> tasks = node.elements();
        for (Object task : tasks) {
            Element taskNode = (Element) task;
            String name = taskNode.attributeValue("name");
            if ("Catalina".equals(name)) {
                String protocol = taskNode.element("Connector").attributeValue("protocol");
                if ("HTTP/1.1".equals(protocol)) {
                    taskNode.element("Connector").addAttribute("port", modifyPort);
                }
            }
        }

        XMLWriter writer = new XMLWriter(new FileWriter(xml));
        writer.write(document);
        writer.close();
    }

}