Source code: org/objectstyle/cayenne/project/validator/DataNodeValidator.java
1 /* ====================================================================
2 *
3 * The ObjectStyle Group Software License, Version 1.0
4 *
5 * Copyright (c) 2002-2003 The ObjectStyle Group
6 * and individual authors of the software. All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 *
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 *
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in
17 * the documentation and/or other materials provided with the
18 * distribution.
19 *
20 * 3. The end-user documentation included with the redistribution, if
21 * any, must include the following acknowlegement:
22 * "This product includes software developed by the
23 * ObjectStyle Group (http://objectstyle.org/)."
24 * Alternately, this acknowlegement may appear in the software itself,
25 * if and wherever such third-party acknowlegements normally appear.
26 *
27 * 4. The names "ObjectStyle Group" and "Cayenne"
28 * must not be used to endorse or promote products derived
29 * from this software without prior written permission. For written
30 * permission, please contact andrus@objectstyle.org.
31 *
32 * 5. Products derived from this software may not be called "ObjectStyle"
33 * nor may "ObjectStyle" appear in their names without prior written
34 * permission of the ObjectStyle Group.
35 *
36 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
37 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
38 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
39 * DISCLAIMED. IN NO EVENT SHALL THE OBJECTSTYLE GROUP OR
40 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
41 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
42 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
43 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
44 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
45 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
46 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
47 * SUCH DAMAGE.
48 * ====================================================================
49 *
50 * This software consists of voluntary contributions made by many
51 * individuals on behalf of the ObjectStyle Group. For more
52 * information on the ObjectStyle Group, please see
53 * <http://objectstyle.org/>.
54 *
55 */
56 package org.objectstyle.cayenne.project.validator;
57
58 import java.util.Iterator;
59
60 import org.objectstyle.cayenne.access.DataDomain;
61 import org.objectstyle.cayenne.access.DataNode;
62 import org.objectstyle.cayenne.conf.DriverDataSourceFactory;
63 import org.objectstyle.cayenne.project.ProjectPath;
64 import org.objectstyle.cayenne.util.Util;
65
66 /**
67 * @author Andrei Adamchik
68 */
69 public class DataNodeValidator extends TreeNodeValidator {
70
71 /**
72 * Constructor for DataNodeValidator.
73 */
74 public DataNodeValidator() {
75 super();
76 }
77
78 public void validateObject(ProjectPath path, Validator validator) {
79 DataNode node = (DataNode) path.getObject();
80 validateName(node, path, validator);
81 validateConnection(node, path, validator);
82 }
83
84 protected void validateConnection(
85 DataNode node,
86 ProjectPath path,
87 Validator validator) {
88 String factory = node.getDataSourceFactory();
89
90 // If direct factory, make sure the location is a valid file name.
91 if (Util.isEmptyString(factory)) {
92 validator.registerError("No DataSource factory.", path);
93 } else if(!DriverDataSourceFactory.class.getName().equals(factory)) {
94 String location = node.getDataSourceLocation();
95 if (Util.isEmptyString(location)) {
96 validator.registerError("DataNode has no location parameter.", path);
97 }
98 }
99
100 if (node.getAdapter() == null) {
101 validator.registerWarning("DataNode has no DBAdapter.", path);
102 }
103 }
104
105 protected void validateName(DataNode node, ProjectPath path, Validator validator) {
106 String name = node.getName();
107
108 if (Util.isEmptyString(name)) {
109 validator.registerError("Unnamed DataNode.", path);
110 return;
111 }
112
113 DataDomain domain = (DataDomain) path.getObjectParent();
114 if (domain == null) {
115 return;
116 }
117
118 // check for duplicate names in the parent context
119 Iterator it = domain.getDataNodes().iterator();
120 while (it.hasNext()) {
121 DataNode otherNode = (DataNode) it.next();
122 if (otherNode == node) {
123 continue;
124 }
125
126 if (name.equals(otherNode.getName())) {
127 validator.registerError("Duplicate DataNode name: " + name + ".", path);
128 break;
129 }
130 }
131 }
132 }