ruleruntimetest.java

jboss规则引擎

package org.drools.jsr94.rules;

/*
 * $Id: RuleRuntimeTestCase.java,v 1.7 2005/02/04 02:13:38 mproctor Exp $
 *
 * Copyright 2002-2004 (C) The Werken Company. All Rights Reserved.
 *
 * Redistribution and use of this software and associated documentation
 * ("Software"), with or without modification, are permitted provided that the
 * following conditions are met:
 *
 * 1. Redistributions of source code must retain copyright statements and
 * notices. Redistributions must also contain a copy of this document.
 *
 * 2. Redistributions in binary form must reproduce the above copyright notice,
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 * from this Software without prior written permission of The Werken Company.
 * For written permission, please contact [e-mail].
 *
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 * "drools" appear in their names without prior written permission of The Werken
 * Company. "drools" is a registered trademark of The Werken Company.
 *
 * 5. Due credit should be given to The Werken Company.
 * (http://drools.werken.com/).
 *
 * THIS SOFTWARE IS PROVIDED BY THE WERKEN COMPANY AND CONTRIBUTORS ``AS IS''
 * AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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 * ARE DISCLAIMED. IN NO EVENT SHALL THE WERKEN COMPANY OR ITS CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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import java.io.InputStreamReader;
import java.io.Reader;
import java.util.List;

import javax.rules.RuleExecutionSetNotFoundException;
import javax.rules.RuleRuntime;
import javax.rules.StatefulRuleSession;
import javax.rules.StatelessRuleSession;
import javax.rules.admin.LocalRuleExecutionSetProvider;
import javax.rules.admin.RuleAdministrator;
import javax.rules.admin.RuleExecutionSet;

/**
 * Test the RuleRuntime implementation.
 *
 * @author N. Alex Rupp (n_alex <at>codehaus.org)
 * @author <a href="mailto:[e-mail]">thomas diesler </a>
 */
public class RuleRuntimeTest extends RuleEngineTestBase {
    private LocalRuleExecutionSetProvider ruleSetProvider;

    private RuleAdministrator             ruleAdministrator;

    private String                        RULES_RESOURCE;

    /**
     * Setup the test case.
     */
    protected void setUp() throws Exception {
        super.setUp();
        this.RULES_RESOURCE = this.bindUri;
        this.ruleAdministrator = this.ruleServiceProvider.getRuleAdministrator();
        this.ruleSetProvider = this.ruleAdministrator.getLocalRuleExecutionSetProvider( null );
    }

    /**
     * Test createRuleSession.
     */
    public void testCreateRuleStatelessRuleSession() throws Exception {
        final RuleRuntime ruleRuntime = this.ruleServiceProvider.getRuleRuntime();
        assertNotNull( "cannot obtain RuleRuntime",
                       ruleRuntime );

        // expect RuleExecutionSetNotFoundException
        try {
            ruleRuntime.createRuleSession( "someUri",
                                           null,
                                           RuleRuntime.STATELESS_SESSION_TYPE );
            fail( "RuleExecutionSetNotFoundException expected" );
        } catch ( final RuleExecutionSetNotFoundException ex ) {
            // ignore exception
        }

        // read rules and register with administrator
        final Reader ruleReader = new InputStreamReader( RuleRuntimeTest.class.getResourceAsStream( this.RULES_RESOURCE ) );
        final RuleExecutionSet ruleSet = this.ruleSetProvider.createRuleExecutionSet( ruleReader,
                                                                                      null );
        this.ruleAdministrator.registerRuleExecutionSet( this.RULES_RESOURCE,
                                                         ruleSet,
                                                         null );

        final StatelessRuleSession statelessRuleSession = (StatelessRuleSession) ruleRuntime.createRuleSession( this.RULES_RESOURCE,
                                                                                                                null,
                                                                                                                RuleRuntime.STATELESS_SESSION_TYPE );
        assertNotNull( "cannot obtain StatelessRuleSession",
                       statelessRuleSession );

        this.ruleAdministrator.deregisterRuleExecutionSet( this.RULES_RESOURCE,
                                                           null );
    }

    /**
     * Test createRuleSession.
     */
    public void testCreateRuleStatefulRuleSession() throws Exception {
        final RuleRuntime ruleRuntime = this.ruleServiceProvider.getRuleRuntime();
        assertNotNull( "cannot obtain RuleRuntime",
                       ruleRuntime );

        // expect RuleExecutionSetNotFoundException
        try {
            ruleRuntime.createRuleSession( "someUri",
                                           null,
                                           RuleRuntime.STATEFUL_SESSION_TYPE );
            fail( "RuleExecutionSetNotFoundException expected" );
        } catch ( final RuleExecutionSetNotFoundException ex ) {
            // ignore exception
        }

        // read rules and register with administrator
        final Reader ruleReader = new InputStreamReader( RuleRuntimeTest.class.getResourceAsStream( this.RULES_RESOURCE ) );
        final RuleExecutionSet ruleSet = this.ruleSetProvider.createRuleExecutionSet( ruleReader,
                                                                                      null );
        this.ruleAdministrator.registerRuleExecutionSet( this.RULES_RESOURCE,
                                                         ruleSet,
                                                         null );

        final StatefulRuleSession statefulRuleSession = (StatefulRuleSession) ruleRuntime.createRuleSession( this.RULES_RESOURCE,
                                                                                                             null,
                                                                                                             RuleRuntime.STATEFUL_SESSION_TYPE );
        assertNotNull( "cannot obtain StatefulRuleSession",
                       statefulRuleSession );

        this.ruleAdministrator.deregisterRuleExecutionSet( this.RULES_RESOURCE,
                                                           null );
    }

    /**
     * Test getRegistrations.
     */
    public void testGetRegistrations() throws Exception {
        final RuleRuntime ruleRuntime = this.ruleServiceProvider.getRuleRuntime();
        assertNotNull( "cannot obtain RuleRuntime",
                       ruleRuntime );

        // read rules and register with administrator
        final Reader ruleReader = new InputStreamReader( RuleRuntimeTest.class.getResourceAsStream( this.RULES_RESOURCE ) );
        final RuleExecutionSet ruleSet = this.ruleSetProvider.createRuleExecutionSet( ruleReader,
                                                                                      null );
        this.ruleAdministrator.registerRuleExecutionSet( this.RULES_RESOURCE,
                                                         ruleSet,
                                                         null );

        final List list = ruleRuntime.getRegistrations();
        assertTrue( "no registrations found",
                    list.size() > 0 );

        this.ruleAdministrator.deregisterRuleExecutionSet( this.RULES_RESOURCE,
                                                           null );
    }
}