Source code: org/objectstyle/cayenne/project/validator/DataMapValidator.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.map.DataMap;
63 import org.objectstyle.cayenne.project.ProjectPath;
64 import org.objectstyle.cayenne.util.Util;
65
66 /**
67 * Validator for DataMaps.
68 *
69 * @author Andrei Adamchik
70 */
71 public class DataMapValidator extends TreeNodeValidator {
72
73 /**
74 * Constructor for DataMapValidator.
75 */
76 public DataMapValidator() {
77 super();
78 }
79
80 public void validateObject(ProjectPath path, Validator validator) {
81 DataMap map = (DataMap) path.getObject();
82 validateName(map, path, validator);
83
84 // check if data map is not attached to any nodes
85 validateNodeLinks(map, path, validator);
86 }
87
88 protected void validateNodeLinks(DataMap map, ProjectPath path, Validator validator) {
89 DataDomain domain = (DataDomain) path.getObjectParent();
90 if (domain == null) {
91 return;
92 }
93
94 boolean unlinked = true;
95 int nodeCount = 0;
96 Iterator it = domain.getDataNodes().iterator();
97 while(it.hasNext()) {
98 DataNode node = (DataNode)it.next();
99 nodeCount++;
100 if(node.getDataMaps().contains(map)) {
101 unlinked = false;
102 break;
103 }
104 }
105
106 if(unlinked && nodeCount > 0) {
107 validator.registerWarning("DataMap is not linked to any DataNodes.", path);
108 }
109 }
110
111 protected void validateName(DataMap map, ProjectPath path, Validator validator) {
112 String name = map.getName();
113
114 if (Util.isEmptyString(name)) {
115 validator.registerError("Unnamed DataMap.", path);
116 return;
117 }
118
119 DataDomain domain = (DataDomain) path.getObjectParent();
120 if (domain == null) {
121 return;
122 }
123
124 // check for duplicate names in the parent context
125 Iterator it = domain.getDataMaps().iterator();
126 while (it.hasNext()) {
127 DataMap otherMap = (DataMap) it.next();
128 if (otherMap == map) {
129 continue;
130 }
131
132 if (name.equals(otherMap.getName())) {
133 validator.registerError("Duplicate DataMap name: " + name + ".", path);
134 return;
135 }
136 }
137 }
138 }