AntXmlPlexusConfigurationWriter.java

package com.orctom.mojo.was.utils;

/*
 * 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 org.codehaus.plexus.configuration.PlexusConfiguration;
import org.codehaus.plexus.util.xml.PrettyPrintXMLWriter;
import org.codehaus.plexus.util.xml.XMLWriter;

import java.io.IOException;
import java.io.Writer;

/**
 * Write a plexus configuration to a stream Note: This class was originally
 * copied from plexus-container-default. It is duplicated here to maintain
 * compatibility with both Maven 2.x and Maven 3.x.
 */
public class AntXmlPlexusConfigurationWriter {

  public void write(PlexusConfiguration configuration, Writer writer) throws IOException {
    int depth = 0;

    PrettyPrintXMLWriter xmlWriter = new PrettyPrintXMLWriter(writer);
    write(configuration, xmlWriter, depth);
  }

  private void write(PlexusConfiguration c, XMLWriter w, int depth) throws IOException {
    int count = c.getChildCount();

    if (count == 0) {
      writeTag(c, w, depth);
    } else {
      w.startElement(c.getName());
      writeAttributes(c, w);

      for (int i = 0; i < count; i++) {
        PlexusConfiguration child = c.getChild(i);

        write(child, w, depth + 1);
      }

      w.endElement();
    }
  }

  private void writeTag(PlexusConfiguration c, XMLWriter w, int depth) throws IOException {
    w.startElement(c.getName());

    writeAttributes(c, w);

    String value = c.getValue(null);
    if (value != null) {
      w.writeText(value);
    }

    w.endElement();
  }

  private void writeAttributes(PlexusConfiguration c, XMLWriter w) throws IOException {
    String[] names = c.getAttributeNames();

    for (int i = 0; i < names.length; i++) {
      w.addAttribute(names[i], c.getAttribute(names[i], null));
    }
  }

}