1 package org.apache.torque.generator.configuration.mergepoint;
2
3 /*
4 * Licensed to the Apache Software Foundation (ASF) under one
5 * or more contributor license agreements. See the NOTICE file
6 * distributed with this work for additional information
7 * regarding copyright ownership. The ASF licenses this file
8 * to you under the Apache License, Version 2.0 (the
9 * "License"); you may not use this file except in compliance
10 * with the License. You may obtain a copy of the License at
11 *
12 * http://www.apache.org/licenses/LICENSE-2.0
13 *
14 * Unless required by applicable law or agreed to in writing,
15 * software distributed under the License is distributed on an
16 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
17 * KIND, either express or implied. See the License for the
18 * specific language governing permissions and limitations
19 * under the License.
20 */
21
22 import static org.apache.torque.generator.configuration.mergepoint.MergepointConfigurationTags.ACTION_ACCEPT_NOT_SET_ATTRIBUTE;
23 import static org.apache.torque.generator.configuration.mergepoint.MergepointConfigurationTags.ACTION_ATTRIBUTE_ATTRIBUTE;
24 import static org.apache.torque.generator.configuration.mergepoint.MergepointConfigurationTags.ACTION_ELEMENT_ATTRIBUTE;
25
26 import org.apache.torque.generator.configuration.ConfigurationProvider;
27 import org.apache.torque.generator.configuration.SaxHelper;
28 import org.apache.torque.generator.configuration.paths.ProjectPaths;
29 import org.apache.torque.generator.control.action.SourceElementAttributeAction;
30 import org.xml.sax.Attributes;
31 import org.xml.sax.SAXException;
32
33 /**
34 * A SAX handler which reads the configuration for a
35 * SourceElementAttributeAction and creates and configures the Action
36 * according to the values in the configuration XML.
37 */
38 public class SourceElementAttributeActionSaxHandler extends ActionSaxHandler
39 {
40 /**
41 * Creates a OptionActionSaxHandler for reading the configuration
42 * of a SourceElementAttributeAction.
43 * @param uri The namespace URI of the action element,
44 * or the empty string if the element has no namespace URI
45 * or if namespace processing is not being performed.
46 * @param localName The local name (without prefix), or
47 * the empty string if Namespace processing is not being performed.
48 * @param qName - The qualified name (with prefix, if present),
49 * or the empty string if qualified names are not available.
50 * @param attributes The attributes attached to the element.
51 * @param configurationProvider for accessing the configuratiopn files,
52 * not null.
53 * @param projectPaths The organization of the surrounding project,
54 * not null.
55 *
56 * @throws NullPointerException if an argument is null.
57 * @throws SAXException if the element cannot be processed correctly.
58 */
59 public SourceElementAttributeActionSaxHandler(
60 String uri,
61 String localName,
62 String qName,
63 Attributes attributes,
64 ConfigurationProvider configurationProvider,
65 ProjectPaths projectPaths)
66 throws SAXException
67 {
68 super(createAction(attributes), configurationProvider, projectPaths);
69 }
70
71 /**
72 * Creates the action from the attributes of the action element.
73 *
74 * @param attributes the attributes of the action element.
75 *
76 * @return the action filled with the attribute values, not null.
77 *
78 * @throws SAXException if the creation of the action fails.
79 */
80 private static SourceElementAttributeAction createAction(
81 Attributes attributes)
82 throws SAXException
83 {
84 String element = attributes.getValue(ACTION_ELEMENT_ATTRIBUTE);
85 String attribute = attributes.getValue(ACTION_ATTRIBUTE_ATTRIBUTE);
86 Boolean acceptNotSet = SaxHelper.getBooleanAttribute(
87 ACTION_ACCEPT_NOT_SET_ATTRIBUTE,
88 attributes,
89 "the SourceElementAttributeAction " + element);
90 SourceElementAttributeAction action
91 = new SourceElementAttributeAction(
92 element,
93 attribute,
94 acceptNotSet);
95 return action;
96 }
97
98 /**
99 * {@inheritDoc}
100 */
101 @Override
102 public void startElement(
103 String uri,
104 String localName,
105 String rawName,
106 Attributes attributes)
107 throws SAXException
108 {
109 throw new SAXException("Unknown tag " + rawName);
110 }
111 }