1 package org.drools.jsr94.rules;
2
3 /*
4 $Id: StatelessRuleSessionTestCase.java,v 1.2 2003/06/18 17:04:36 tdiesler Exp $
5
6 Copyright 2002 (C) The Werken Company. All Rights Reserved.
7
8 Redistribution and use of this software and associated documentation
9 ("Software"), with or without modification, are permitted provided
10 that the following conditions are met:
11
12 1. Redistributions of source code must retain copyright
13 statements and notices. Redistributions must also contain a
14 copy of this document.
15
16 2. Redistributions in binary form must reproduce the
17 above copyright notice, this list of conditions and the
18 following disclaimer in the documentation and/or other
19 materials provided with the distribution.
20
21 3. The name "drools" must not be used to endorse or promote
22 products derived from this Software without prior written
23 permission of The Werken Company. For written permission,
24 please contact bob@werken.com.
25
26 4. Products derived from this Software may not be called "drools"
27 nor may "drools" appear in their names without prior written
28 permission of The Werken Company. "drools" is a registered
29 trademark of The Werken Company.
30
31 5. Due credit should be given to The Werken Company.
32 (http://drools.werken.com/).
33
34 THIS SOFTWARE IS PROVIDED BY THE WERKEN COMPANY AND CONTRIBUTORS
35 ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT
36 NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
37 FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
38 THE WERKEN COMPANY OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
39 INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
40 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
41 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
42 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
43 STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
44 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
45 OF THE POSSIBILITY OF SUCH DAMAGE.
46
47 */
48
49 import javax.rules.ObjectFilter;
50 import javax.rules.RuleRuntime;
51 import javax.rules.StatelessRuleSession;
52 import javax.rules.admin.LocalRuleExecutionSetProvider;
53 import javax.rules.admin.RuleAdministrator;
54 import javax.rules.admin.RuleExecutionSet;
55 import java.io.InputStreamReader;
56 import java.io.Reader;
57 import java.util.ArrayList;
58 import java.util.List;
59
60 /***
61 * Test the <code>StatelessRuleSession</code> implementation.
62 *
63 * @see StatelessRuleSession
64 *
65 * @author <a href="mailto:thomas.diesler@softcon-itec.de">thomas diesler</a>
66 */
67 public class StatelessRuleSessionTestCase extends JSR94TestBase {
68
69 private StatelessRuleSession statelessSession;
70
71 /***
72 * Setup the test case.
73 */
74 protected void setUp() throws Exception {
75 super.setUp();
76 RuleAdministrator ruleAdministrator = ruleServiceProvider.getRuleAdministrator();
77 LocalRuleExecutionSetProvider ruleSetProvider = ruleAdministrator.getLocalRuleExecutionSetProvider(null);
78 RuleRuntime ruleRuntime = ruleServiceProvider.getRuleRuntime();
79
80 // read rules and register with administrator
81 Reader ruleReader = new InputStreamReader(getResourceAsStream(RULES_RESOURCE));
82 RuleExecutionSet ruleSet = ruleSetProvider.createRuleExecutionSet(ruleReader, null);
83 ruleAdministrator.registerRuleExecutionSet(RULES_RESOURCE, ruleSet, null);
84
85 // obtain the stateless rule session
86 statelessSession = (StatelessRuleSession)ruleRuntime.createRuleSession(RULES_RESOURCE, null, RuleRuntime.STATELESS_SESSION_TYPE);
87 }
88
89 /***
90 * Test executeRules.
91 */
92 public void testExecuteRules() throws Exception {
93
94 List inObjects = new ArrayList();
95
96 Person bob = new Person("bob");
97 inObjects.add(bob);
98
99 Person rebecca = new Person("rebecca");
100 rebecca.addSister("jeannie");
101 inObjects.add(rebecca);
102
103 Person jeannie = new Person("jeannie");
104 jeannie.addSister("rebecca");
105 inObjects.add(jeannie);
106
107 // execute the rules
108 List outList = statelessSession.executeRules(inObjects);
109 assertEquals("incorrect size", 7, outList.size());
110
111 assertTrue("where is bob", outList.contains(bob));
112 assertTrue("where is rebecca", outList.contains(rebecca));
113 assertTrue("where is jeannie", outList.contains(jeannie));
114
115 assertTrue(outList.contains("bob says: rebecca and jeannie are sisters"));
116 assertTrue(outList.contains("bob says: jeannie and rebecca are sisters"));
117
118 assertTrue(outList.contains("rebecca: I like cheese"));
119 assertTrue(outList.contains("jeannie: I like cheese"));
120
121 statelessSession.release();
122 }
123
124 /***
125 * Test executeRules with ObjectFilter.
126 */
127 public void testExecuteRulesWithFilter() throws Exception {
128 List inObjects = new ArrayList();
129
130 Person bob = new Person("bob");
131 inObjects.add(bob);
132
133 Person rebecca = new Person("rebecca");
134 rebecca.addSister("jeannie");
135 inObjects.add(rebecca);
136
137 Person jeannie = new Person("jeannie");
138 jeannie.addSister("rebecca");
139 inObjects.add(jeannie);
140
141 // execute the rules
142 List outList = statelessSession.executeRules(inObjects, new PersonFilter());
143 assertEquals("incorrect size", 3, outList.size());
144
145 assertTrue("where is bob", outList.contains(bob));
146 assertTrue("where is rebecca", outList.contains(rebecca));
147 assertTrue("where is jeannie", outList.contains(jeannie));
148 }
149
150 /***
151 * Filter accepts only objects of type Person.
152 */
153 static class PersonFilter implements ObjectFilter {
154
155 public Object filter(Object object) {
156 return (object instanceof Person ? object : null);
157 }
158
159 public void reset() {
160 }
161 }
162 }
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