/*
    * 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.apache.commons.weaver.ant;
  
  import java.util.Properties;
  
  import org.apache.commons.lang3.StringUtils;
  import org.apache.tools.ant.DynamicElementNS;
  
  /**
   * <p>Structure to allow inline specification of properties.</p>
   * <p>Example:
   * {pre}&lt;foo&gt;foo-value&lt;/foo&gt;
   * &lt;bar&gt;bar-value&lt;/bar&gt;
   * &lt;baz&gt;baz
   * -nextline-value&lt;/baz&gt;
   * {/pre}
   * </p>
   */
  public class InlineProperties implements DynamicElementNS {
      /**
       * Represents a single inline property.
       */
      public final class InlineProperty {
          private final String name;
  
          private InlineProperty(final String name) {
              this.name = name;
          }
  
          /**
           * Add text to this property.
           * @param text to add
           */
          public void addText(final String text) {
              final String value;
              if (properties.containsKey(name)) {
                  value = StringUtils.join(properties.getProperty(name), text);
              } else {
                  value = text;
              }
              properties.setProperty(name, value);
          }
      }
  
      /**
       * {@link Properties} object maintained by the {@link InlineProperties}.
       */
      final Properties properties = new Properties();
  
      /**
       * Handle the specified nested element.
       * @param uri String URI
       * @param localName local element name
       * @param qName qualified name
       * @return InlineProperty
       */
      @Override
      public InlineProperty createDynamicElement(final String uri, final String localName, final String qName) {
          return new InlineProperty(localName);
      }
  }