package org.drools.jsr94.rules.admin;
/*
* $Id: RuleExecutionSetProviderTestCase.java,v 1.12 2004/11/17 03:09:57 dbarnett Exp $
*
* Copyright 2002-2004 (C) The Werken Company. All Rights Reserved.
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* ("Software"), with or without modification, are permitted provided that the
* following conditions are met:
*
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import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.Reader;
import java.util.ArrayList;
import javax.rules.admin.RuleAdministrator;
import javax.rules.admin.RuleExecutionSet;
import javax.rules.admin.RuleExecutionSetProvider;
import org.apache.xerces.parsers.DOMParser;
import org.drools.io.RuleSetReader;
import org.drools.jsr94.rules.RuleEngineTestBase;
import org.drools.rule.RuleSet;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;
/**
* Test the RuleExecutionSetProvider implementation.
*
* @author N. Alex Rupp (n_alex <at>codehaus.org)
*/
public class RuleExecutionSetProviderTestCase extends RuleEngineTestBase
{
private RuleAdministrator ruleAdministrator;
private RuleExecutionSetProvider ruleSetProvider;
private RuleSet ruleSet;
/**
* Setup the test case.
*/
protected void setUp( ) throws Exception
{
super.setUp( );
ruleAdministrator = ruleServiceProvider.getRuleAdministrator( );
ruleSetProvider = ruleAdministrator.getRuleExecutionSetProvider( null );
initRuleSet( );
}
private void initRuleSet( )
{
InputStream resourceAsStream = null;
try
{
resourceAsStream =
RuleEngineTestBase.class.getResourceAsStream( bindUri );
Reader reader = new InputStreamReader( resourceAsStream );
RuleSetReader ruleSetReader = new RuleSetReader( );
this.ruleSet = ruleSetReader.read( reader );
}
catch ( IOException e )
{
throw new ExceptionInInitializerError(
"setUp() could not init the " +
"RuleSet due to an IOException in the InputStream: " + e );
}
catch ( Exception e )
{
throw new ExceptionInInitializerError(
"setUp() could not init the RuleSet, " + e );
}
finally
{
if ( resourceAsStream != null )
{
try
{
resourceAsStream.close( );
}
catch ( IOException e )
{
e.printStackTrace( );
}
}
}
}
protected void tearDown( )
{
ruleSet = null;
}
/**
* Test createRuleExecutionSet from DOM.
*/
public void testCreateFromElement( ) throws Exception
{
DOMParser parser = new DOMParser( );
Document doc = null;
try
{
parser.parse( new InputSource(
RuleEngineTestBase.class.getResourceAsStream( bindUri ) ) );
doc = parser.getDocument( );
}
catch ( SAXException e )
{
fail( "could not parse incoming data stream: " + e );
}
catch ( IOException e )
{
fail( "could not open incoming data stream: " + e );
}
Element element = null;
NodeList children = doc.getChildNodes( );
if ( children != null )
{
for ( int i = 0; i < children.getLength( ); i++ )
{
Node child = children.item( i );
if ( Node.ELEMENT_NODE == child.getNodeType( ) )
{
element = ( Element ) child;
}
}
}
if ( element != null )
{
RuleExecutionSet testRuleSet =
ruleSetProvider.createRuleExecutionSet( element, null );
assertEquals(
"rule set name", "Sisters Rules", testRuleSet.getName( ) );
assertEquals(
"number of rules", 1, testRuleSet.getRules( ).size( ) );
}
else
{
fail( "could not build an org.w3c.dom.Element" );
}
}
/**
* Test createRuleExecutionSet from Serializable.
*/
public void testCreateFromSerializable( ) throws Exception
{
RuleExecutionSet ruleExecutionSet =
ruleSetProvider.createRuleExecutionSet( this.ruleSet, null );
assertEquals( "rule set name", "Sisters Rules",
ruleExecutionSet.getName( ) );
assertEquals(
"number of rules", 1, ruleExecutionSet.getRules( ).size( ) );
}
/**
* Test createRuleExecutionSet from URI.
*/
public void testCreateFromURI( ) throws Exception
{
String rulesUri =
RuleEngineTestBase.class.getResource( bindUri ).toExternalForm( );
RuleExecutionSet testRuleSet =
ruleSetProvider.createRuleExecutionSet( rulesUri, null );
assertEquals(
"rule set name", "Sisters Rules", testRuleSet.getName( ) );
assertEquals( "number of rules", 1, testRuleSet.getRules( ).size( ) );
}
public void testIncompatibleSerializableCreation( ) throws Exception
{
try
{
RuleExecutionSet testRuleSet =
ruleSetProvider.createRuleExecutionSet( new ArrayList( ), null );
fail( "Should have thrown an IllegalArgumentException. ArrayList " +
"objects are not valid AST representations. " + testRuleSet );
}
catch ( IllegalArgumentException e )
{
/*
* this is supposed to happen if you pass in a serializable object
* that isn't a supported AST representation.
*/
}
}
}