com.rapiddweller.common.converter.XMLNode2StringConverter Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of rd-lib-common Show documentation

'rapiddweller Common' is an open source Java library forked from Databene Commons by Volker Bergmann. It provides extensions to the Java core library by utility classes, abstract concepts and concrete implementations.

There is a newer version: 2.0.1-jdk-11

Show newest version

/*
 * Copyright (C) 2004-2015 Volker Bergmann ([email protected]).
 * All rights reserved.
 *
 * 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.
 */

package com.rapiddweller.common.converter;

import com.rapiddweller.common.ConversionException;
import com.rapiddweller.common.SystemInfo;
import com.rapiddweller.common.xml.XMLUtil;
import org.w3c.dom.CDATASection;
import org.w3c.dom.CharacterData;
import org.w3c.dom.Comment;
import org.w3c.dom.Document;
import org.w3c.dom.Element;

/**
 * Converts content elements of org.w3c.Document to strings.
 * Created: 20.11.2015 18:00:16
 *
 * @author Volker Bergmann
 * @since 1.0.6
 */
public class XMLNode2StringConverter extends UnsafeConverter {

  private static final String LF = SystemInfo.getLineSeparator();
  private static final XMLNode2StringConverter DEFAULT_INSTANCE = new XMLNode2StringConverter();

  /**
   * Instantiates a new Xml node 2 string converter.
   */
  public XMLNode2StringConverter() {
    super(Object.class, String.class);
  }

  @Override
  public String convert(Object node) throws ConversionException {
    if (node instanceof CDATASection) {
      return "";
    } else if (node instanceof CharacterData) {
      return "'" + ((CharacterData) node).getTextContent() + "'";
    } else if (node instanceof Element) {
      return LF + XMLUtil.format((Element) node).trim() + LF;
    } else if (node instanceof Comment) {
      return LF + ((Comment) node).getData() + LF;
    } else if (node instanceof Document) {
      return XMLUtil.format((Document) node);
    } else if (node instanceof String) {
      return "'" + node + "'";
    } else {
      return ToStringConverter.convert(node, "");
    }
  }

  /**
   * Format string.
   *
   * @param node the node
   * @return the string
   * @throws ConversionException the conversion exception
   */
  public static String format(Object node) throws ConversionException {
    return DEFAULT_INSTANCE.convert(node);
  }

}