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1 package org.drools.semantics.python; 2 3 /* 4 $Id: Exec.java,v 1.5 2003/03/25 19:47:32 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 org.drools.rule.Declaration; 50 import org.drools.smf.ConfigurationException; 51 import org.drools.spi.Tuple; 52 import org.python.core.Py; 53 import org.python.core.PyDictionary; 54 55 import java.util.Hashtable; 56 57 /*** Base class for Jython statement-based Python semantic components. 58 * 59 * @see BlockConsequence 60 * 61 * @author <a href="mailto:bob@eng.werken.com">bob mcwhirter</a> 62 * @author <a href="mailto:christiaan@dacelo.nl">Christiaan ten Klooster</a> 63 * 64 * @version $Id: Exec.java,v 1.5 2003/03/25 19:47:32 tdiesler Exp $ 65 */ 66 public class Exec extends Interp 67 { 68 // ------------------------------------------------------------ 69 // Instance members 70 // ------------------------------------------------------------ 71 72 // ------------------------------------------------------------ 73 // Constructors 74 // ------------------------------------------------------------ 75 76 /*** Construct. 77 */ 78 protected Exec() 79 { 80 } 81 82 // ------------------------------------------------------------ 83 // Instance methods 84 // ------------------------------------------------------------ 85 86 /*** Execute. 87 * 88 * @param tuple Tuple containing variable bindings. 89 */ 90 public void execute(Tuple tuple) 91 { 92 PyDictionary dict = setUpDictionary( tuple ); 93 94 execute( dict ); 95 } 96 97 /*** Execute. 98 * 99 * @param locals The evaluation dictionary. 100 */ 101 protected void execute(PyDictionary locals) 102 { 103 PyDictionary globals = new PyDictionary( new Hashtable() ); 104 105 Py.runCode( getCode(), 106 locals, 107 globals ); 108 109 } 110 111 /*** Execute. 112 */ 113 protected void execute() 114 { 115 PyDictionary locals = new PyDictionary( new Hashtable() ); 116 117 execute( locals ); 118 } 119 120 /*** Set the text to execute. 121 * 122 * @param text The text. 123 */ 124 protected void setText(String text) 125 { 126 setText( text, 127 "exec" ); 128 } 129 130 /*** Configure. 131 * 132 * @param text Configuration text. 133 * @param availDecls Available declarations. 134 * 135 * @throws ConfigurationException If an error occurs while 136 * attempting to perform configuration. 137 */ 138 public void configure(String text, 139 Declaration[] availDecls) throws ConfigurationException 140 { 141 setText( text ); 142 } 143 }

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