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_ELEMENT_ATTRIBUTE;
24 import static org.apache.torque.generator.configuration.mergepoint.MergepointConfigurationTags.ACTION_OUTLET_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.ApplyAction;
30 import org.apache.torque.generator.control.action.MergepointAction;
31 import org.xml.sax.Attributes;
32 import org.xml.sax.SAXException;
33
34 /**
35 * A SAX handler which reads the configuration for a ApplyAction
36 * and creates and configures the Action according to the values in the
37 * configuration XML.
38 */
39 public class ApplyActionSaxHandler extends ActionSaxHandler
40 {
41 /**
42 * Creates a ApplyActionSaxHandler for reading the configuration
43 * of a ApplyAction.
44 *
45 * @param uri The namespace URI of the action element,
46 * or the empty string if the element has no namespace URI
47 * or if namespace processing is not being performed.
48 * @param localName The local name (without prefix), or
49 * the empty string if Namespace processing is not being performed.
50 * @param qName The qualified name (with prefix, if present),
51 * or the empty string if qualified names are not available.
52 * @param attributes The attributes attached to the element.
53 * @param configurationProvider for accessing the configuratiopn files,
54 * not null.
55 * @param projectPaths The organization of the surrounding project,
56 * not null.
57 *
58 * @throws NullPointerException if an argument is null.
59 * @throws SAXException if the element cannot be processed correctly.
60 */
61 public ApplyActionSaxHandler(
62 String uri,
63 String localName,
64 String qName,
65 Attributes attributes,
66 ConfigurationProvider configurationProvider,
67 ProjectPaths projectPaths)
68 throws SAXException
69 {
70 super(createAction(attributes), configurationProvider, projectPaths);
71 }
72
73 /**
74 * Creates the action from the attributes of the action element.
75 *
76 * @param attributes the attributes of the action element.
77 *
78 * @return the action filled with the attribute values, not null.
79 *
80 * @throws SAXException if the creation of the action fails.
81 */
82 private static MergepointAction createAction(Attributes attributes)
83 throws SAXException
84 {
85 String outlet = attributes.getValue(ACTION_OUTLET_ATTRIBUTE);
86 String element = attributes.getValue(ACTION_ELEMENT_ATTRIBUTE);
87 Boolean acceptNotSet = SaxHelper.getBooleanAttribute(
88 ACTION_ACCEPT_NOT_SET_ATTRIBUTE,
89 attributes,
90 "the element " + element);
91 ApplyAction action = new ApplyAction(element, outlet, acceptNotSet);
92 return action;
93 }
94
95 /**
96 * {@inheritDoc}
97 */
98 @Override
99 public void startElement(
100 String uri,
101 String localName,
102 String rawName,
103 Attributes attributes)
104 throws SAXException
105 {
106 throw new SAXException("Unknown tag " + rawName);
107 }
108 }