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Java > Open Source Codes > org > objectstyle > cayenne > project > validator > TreeNodeValidator


1 /* ====================================================================
2  *
3  * The ObjectStyle Group Software License, version 1.1
4  * ObjectStyle Group - http://objectstyle.org/
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6  * Copyright (c) 2002-2005, Andrei (Andrus) Adamchik and individual authors
7  * of the software. All rights reserved.
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24  * and hosted on ObjectStyle Group web site (http://objectstyle.org/)."
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26  * if and wherever such third-party acknowlegements normally appear.
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56 package org.objectstyle.cayenne.project.validator;
57
58 import org.apache.log4j.Logger;
59 import org.objectstyle.cayenne.access.DataDomain;
60 import org.objectstyle.cayenne.access.DataNode;
61 import org.objectstyle.cayenne.map.DataMap;
62 import org.objectstyle.cayenne.map.DbAttribute;
63 import org.objectstyle.cayenne.map.DbEntity;
64 import org.objectstyle.cayenne.map.DbRelationship;
65 import org.objectstyle.cayenne.map.ObjAttribute;
66 import org.objectstyle.cayenne.map.ObjEntity;
67 import org.objectstyle.cayenne.map.ObjRelationship;
68 import org.objectstyle.cayenne.map.Procedure;
69 import org.objectstyle.cayenne.map.ProcedureParameter;
70 import org.objectstyle.cayenne.project.ProjectPath;
71 import org.objectstyle.cayenne.query.ProcedureQuery;
72 import org.objectstyle.cayenne.query.SQLTemplate;
73 import org.objectstyle.cayenne.query.SelectQuery;
74
75 /**
76  * Validator of a single node in a project object tree. <i>Do not confuse with
77  * org.objectstyle.cayenne.access.DataNode. </i>
78  *
79  * @author Andrei Adamchik
80  */
81 public abstract class TreeNodeValidator {
82
83     private static Logger logObj = Logger.getLogger(TreeNodeValidator.class);
84
85     // initialize singleton validators
86 protected static final DomainValidator domainValidator = new DomainValidator();
87     protected static final DataNodeValidator nodeValidator = new DataNodeValidator();
88     protected static final DataMapValidator mapValidator = new DataMapValidator();
89     protected static final ObjEntityValidator objEntityValidator = new ObjEntityValidator();
90     protected static final ObjAttributeValidator objAttrValidator = new ObjAttributeValidator();
91     protected static final ObjRelationshipValidator objRelValidator = new ObjRelationshipValidator();
92     protected static final DbEntityValidator dbEntityValidator = new DbEntityValidator();
93     protected static final DbAttributeValidator dbAttrValidator = new DbAttributeValidator();
94     protected static final DbRelationshipValidator dbRelValidator = new DbRelationshipValidator();
95
96     protected static final ProcedureValidator procedureValidator = new ProcedureValidator();
97
98     protected static final ProcedureParameterValidator procedureParameterValidator = new ProcedureParameterValidator();
99     protected static final SelectQueryValidator selectQueryValidator = new SelectQueryValidator();
100
101     protected static final ProcedureQueryValidator procedureQueryValidator = new ProcedureQueryValidator();
102
103     protected static final SQLTemplateValidator sqlTemplateValidator = new SQLTemplateValidator();
104
105     /**
106      * Validates an object, appending any validation messages to the validator provided.
107      */
108     public static void validate(ProjectPath path, Validator validator) {
109         Object JavaDoc validatedObj = path.getObject();
110         TreeNodeValidator validatorObj = null;
111         if (validatedObj instanceof ObjAttribute) {
112             validatorObj = objAttrValidator;
113         }
114         else if (validatedObj instanceof ObjRelationship) {
115             validatorObj = objRelValidator;
116         }
117         else if (validatedObj instanceof ObjEntity) {
118             validatorObj = objEntityValidator;
119         }
120         else if (validatedObj instanceof DbAttribute) {
121             validatorObj = dbAttrValidator;
122         }
123         else if (validatedObj instanceof DbRelationship) {
124             validatorObj = dbRelValidator;
125         }
126         else if (validatedObj instanceof DbEntity) {
127             validatorObj = dbEntityValidator;
128         }
129         else if (validatedObj instanceof DataNode) {
130             validatorObj = nodeValidator;
131         }
132         else if (validatedObj instanceof DataMap) {
133             validatorObj = mapValidator;
134         }
135         else if (validatedObj instanceof DataDomain) {
136             validatorObj = domainValidator;
137         }
138         else if (validatedObj instanceof Procedure) {
139             validatorObj = procedureValidator;
140         }
141         else if (validatedObj instanceof ProcedureParameter) {
142             validatorObj = procedureParameterValidator;
143         }
144         else if (validatedObj instanceof SelectQuery) {
145             validatorObj = selectQueryValidator;
146         }
147         else if (validatedObj instanceof SQLTemplate) {
148             validatorObj = sqlTemplateValidator;
149         }
150         else if (validatedObj instanceof ProcedureQuery) {
151             validatorObj = procedureQueryValidator;
152         }
153         else {
154             // ignore unknown nodes
155 String JavaDoc className = (validatedObj != null)
156                     ? validatedObj.getClass().getName()
157                     : "(null object)";
158             logObj.info("Validation not supported for object of class: " + className);
159             return;
160         }
161
162         validatorObj.validateObject(path, validator);
163     }
164
165     /**
166      * Constructor for TreeNodeValidator.
167      */
168     public TreeNodeValidator() {
169         super();
170     }
171
172     /**
173      * Validates an object, appending any warnings or errors to the validator. Object to
174      * be validated is the last object in a <code>treeNodePath</code> array argument.
175      * Concrete implementations would expect an object of a specific type. Otherwise,
176      * ClassCastException will be thrown.
177      */
178     public abstract void validateObject(ProjectPath treeNodePath, Validator validator);
179 }
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