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1   /*
2    * Copyright 2013 smartics, Kronseder & Reiner GmbH
3    *
4    * Licensed under the Apache License, Version 2.0 (the "License");
5    * you may not use this file except in compliance with the License.
6    * You may obtain a copy of the License at
7    *
8    *     http://www.apache.org/licenses/LICENSE-2.0
9    *
10   * Unless required by applicable law or agreed to in writing, software
11   * distributed under the License is distributed on an "AS IS" BASIS,
12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13   * See the License for the specific language governing permissions and
14   * limitations under the License.
15   */
16  package de.smartics.properties.config.transfer.templatestream;
17  
18  import org.apache.commons.lang.StringEscapeUtils;
19  
20  /**
21   * Creates instances of {@link StreamPropertySink} by providing a template to
22   * generate an XML document.
23   */
24  public class XmlFactory extends Factory
25  {
26    // ********************************* Fields *********************************
27  
28    // --- constants ------------------------------------------------------------
29  
30    // --- members --------------------------------------------------------------
31  
32    // ****************************** Initializer *******************************
33  
34    // ****************************** Constructors ******************************
35  
36    /**
37     * Default constructor.
38     */
39    public XmlFactory()
40    {
41      setLineIntro("  <properties from=\"${location}\">${newline}");
42      setLineExtro("  </properties>${newline}");
43      setEscaper(new ValueEscaper()
44      {
45        @Override
46        public String escape(final String value)
47        {
48          return StringEscapeUtils.escapeXml(value);
49        }
50      });
51  
52      final String template =
53          "    <property config=\"${configKey}\" name=\"${name}\">${value}</property>${newline}";
54      setTemplate(template);
55    }
56  
57    // ****************************** Inner Classes *****************************
58  
59    // ********************************* Methods ********************************
60  
61    // --- init -----------------------------------------------------------------
62  
63    // --- get&set --------------------------------------------------------------
64  
65    // --- business -------------------------------------------------------------
66  
67    /**
68     * {@inheritDoc}
69     *
70     * @throws IllegalStateException on any problem opening the stream.
71     */
72    @Override
73    public StreamPropertySink create() throws IllegalStateException
74    {
75      setDocumentIntro("<?xml version=\"1.0\" encoding=\"" + getEncoding()
76                       + "\"?>${newline}${newline}" + "<config>${newline}");
77      setDocumentExtro("</config>${newline}");
78  
79      return super.create();
80    }
81  
82    // --- object basics --------------------------------------------------------
83  
84  }