Clover coverage report - Drools - 2.0-rc2
Coverage timestamp: Wed May 11 2005 07:12:26 BST
file stats: LOC: 117   Methods: 2
NCLOC: 42   Classes: 1
 
 Source file Conditionals Statements Methods TOTAL
GroovyExprAnalyzer.java 100% 100% 100% 100%
coverage
 1    package org.drools.semantics.groovy;
 2   
 3    /*
 4    * $Id: GroovyExprAnalyzer.java,v 1.2 2005/02/04 02:13:38 mproctor 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 that the
 10    * following conditions are met:
 11    *
 12    * 1. Redistributions of source code must retain copyright statements and
 13    * notices. Redistributions must also contain a copy of this document.
 14    *
 15    * 2. Redistributions in binary form must reproduce the above copyright notice,
 16    * this list of conditions and the following disclaimer in the documentation
 17    * and/or other materials provided with the distribution.
 18    *
 19    * 3. The name "drools" must not be used to endorse or promote products derived
 20    * from this Software without prior written permission of The Werken Company.
 21    * For written permission, please contact bob@werken.com.
 22    *
 23    * 4. Products derived from this Software may not be called "drools" nor may
 24    * "drools" appear in their names without prior written permission of The Werken
 25    * Company. "drools" is a registered trademark of The Werken Company.
 26    *
 27    * 5. Due credit should be given to The Werken Company.
 28    * (http://drools.werken.com/).
 29    *
 30    * THIS SOFTWARE IS PROVIDED BY THE WERKEN COMPANY AND CONTRIBUTORS ``AS IS''
 31    * AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 32    * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 33    * ARE DISCLAIMED. IN NO EVENT SHALL THE WERKEN COMPANY OR ITS CONTRIBUTORS BE
 34    * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 35    * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 36    * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 37    * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 38    * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 39    * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 40    * POSSIBILITY OF SUCH DAMAGE.
 41    *
 42    */
 43   
 44    import java.util.Iterator;
 45    import java.util.LinkedList;
 46    import java.util.List;
 47    import java.util.Set;
 48   
 49    import org.codehaus.groovy.ast.ASTNode;
 50    import org.codehaus.groovy.ast.ClassNode;
 51    import org.codehaus.groovy.ast.MethodNode;
 52    import org.codehaus.groovy.ast.ModuleNode;
 53    import org.codehaus.groovy.control.SourceUnit;
 54    import org.drools.rule.Declaration;
 55   
 56    /**
 57    * Analyzes python expressions for all mentioned variables.
 58    *
 59    * @author <a href="mailto:bob@eng.werken.com">bob mcwhirter </a>
 60    * @author <a href="mailto:ckl@dacelo.nl">Christiaan ten Klooster </a>
 61    *
 62    * @version $Id: GroovyExprAnalyzer.java,v 1.2 2005/02/04 02:13:38 mproctor Exp $
 63    */
 64    public class GroovyExprAnalyzer
 65    {
 66   
 67  21 public GroovyExprAnalyzer()
 68    {
 69    }
 70   
 71    // ------------------------------------------------------------
 72    // Instance methods
 73    // ------------------------------------------------------------
 74   
 75    /**
 76    * Analyze an expression.
 77    *
 78    * @param text The expression to analyze.
 79    * @param availDecls Total set of declarations available.
 80    *
 81    * @return The array of declarations used by the expression.
 82    *
 83    * @throws Exception If an error occurs while attempting to analyze the
 84    * expression.
 85    */
 86  21 public Declaration[] analyze( String text,
 87    List availDecls ) throws Exception
 88    {
 89  21 SourceUnit unit = SourceUnit.create( "groovy.script", text );
 90  21 unit.parse( );
 91  21 unit.convert( );
 92  21 ModuleNode module = unit.getAST( );
 93   
 94  21 ClassNode classNode = ( ClassNode ) module.getClasses( ).get( 0 );
 95  21 List methods = classNode.getDeclaredMethods( "run" );
 96  21 MethodNode method = ( MethodNode ) methods.get( 0 );
 97  21 ASTNode expr = method.getCode( );
 98   
 99  21 GroovyExprVisitor visitor = new GroovyExprVisitor( );
 100  21 expr.visit( visitor );
 101  21 Set refs = visitor.getVariables( );
 102   
 103  21 List decls = new LinkedList( );
 104  21 for ( Iterator declIter = availDecls.iterator( ); declIter.hasNext( ); )
 105    {
 106  37 Declaration eachDecl = ( Declaration ) declIter.next( );
 107   
 108  37 if ( refs.contains( eachDecl.getIdentifier( ) ) )
 109    {
 110  19 decls.add( eachDecl );
 111  19 refs.remove( eachDecl.getIdentifier( ) );
 112    }
 113    }
 114   
 115  21 return ( Declaration[] ) decls.toArray( new Declaration[ decls.size( ) ] );
 116    }
 117    }