Clover coverage report - groovy - 1.0-beta-6
Coverage timestamp: Thu Jul 15 2004 13:18:22 BST
file stats: LOC: 184   Methods: 12
NCLOC: 74   Classes: 1
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 Source file Conditionals Statements Methods TOTAL
Script.java 0% 0% 0% 0%
coverage
 1   
 /*
 2   
  $Id: Script.java,v 1.13 2004/05/15 04:48:29 bran Exp $
 3   
 
 4   
  Copyright 2003 (C) James Strachan and Bob Mcwhirter. All Rights Reserved.
 5   
 
 6   
  Redistribution and use of this software and associated documentation
 7   
  ("Software"), with or without modification, are permitted provided
 8   
  that the following conditions are met:
 9   
 
 10   
  1. Redistributions of source code must retain copyright
 11   
     statements and notices.  Redistributions must also contain a
 12   
     copy of this document.
 13   
 
 14   
  2. Redistributions in binary form must reproduce the
 15   
     above copyright notice, this list of conditions and the
 16   
     following disclaimer in the documentation and/or other
 17   
     materials provided with the distribution.
 18   
 
 19   
  3. The name "groovy" must not be used to endorse or promote
 20   
     products derived from this Software without prior written
 21   
     permission of The Codehaus.  For written permission,
 22   
     please contact info@codehaus.org.
 23   
 
 24   
  4. Products derived from this Software may not be called "groovy"
 25   
     nor may "groovy" appear in their names without prior written
 26   
     permission of The Codehaus. "groovy" is a registered
 27   
     trademark of The Codehaus.
 28   
 
 29   
  5. Due credit should be given to The Codehaus -
 30   
     http://groovy.codehaus.org/
 31   
 
 32   
  THIS SOFTWARE IS PROVIDED BY THE CODEHAUS AND CONTRIBUTORS
 33   
  ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT
 34   
  NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
 35   
  FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
 36   
  THE CODEHAUS OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
 37   
  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 38   
  (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 39   
  SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 40   
  HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 41   
  STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 42   
  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 43   
  OF THE POSSIBILITY OF SUCH DAMAGE.
 44   
 
 45   
  */
 46   
 package groovy.lang;
 47   
 
 48   
 import java.io.File;
 49   
 import java.io.IOException;
 50   
 
 51   
 import org.codehaus.groovy.ast.expr.ArgumentListExpression;
 52   
 import org.codehaus.groovy.control.CompilationFailedException;
 53   
 import org.codehaus.groovy.runtime.InvokerHelper;
 54   
 
 55   
 /**
 56   
  * This object represents a Groovy script
 57   
  * 
 58   
  * @author <a href="mailto:james@coredevelopers.net">James Strachan</a>
 59   
  * @version $Revision: 1.13 $
 60   
  */
 61   
 public abstract class Script extends GroovyObjectSupport {
 62   
     private Binding binding = new Binding();
 63   
 
 64  0
     protected Script() {
 65   
     }
 66   
 
 67  0
     protected Script(Binding binding) {
 68  0
         this.binding = binding;
 69   
     }
 70   
 
 71  0
     public Binding getBinding() {
 72  0
         return binding;
 73   
     }
 74   
 
 75  0
     public void setBinding(Binding binding) {
 76  0
         this.binding = binding;
 77   
     }
 78   
 
 79  0
     public Object getProperty(String property) {
 80   
         //System.out.println("Script.getProperty for: " + property + " with binding: " + binding.getVariables());
 81  0
         Object answer = binding.getVariable(property);
 82  0
         if (answer == null) {
 83  0
             try {
 84  0
                 return super.getProperty(property);
 85   
             }
 86   
             catch (MissingPropertyException e) {
 87   
                 // ignore errors inside scripts
 88   
             }
 89   
         }
 90  0
         return answer;
 91   
     }
 92   
 
 93  0
     public void setProperty(String property, Object newValue) {
 94   
         //System.out.println("Script.setProperty for: " + property + " with newValue: " + newValue);
 95  0
         binding.setVariable(property, newValue);
 96   
         //System.out.println("binding are now: " + binding.getVariables());
 97   
     }
 98   
 
 99   
     /**
 100   
      * The main instance method of a script which has variables in scope
 101   
      * as defined by the current {@link Binding} instance.
 102   
      * 
 103   
      * @return
 104   
      */
 105   
     public abstract Object run();
 106   
 
 107   
     // println helper methods
 108   
 
 109   
     /**
 110   
      * Prints a newline to the current 'out' variable which should be a PrintWriter
 111   
      * or at least have a println() method defined on it.
 112   
      * If there is no 'out' property then print to standard out.
 113   
      */
 114  0
     public void println() {
 115  0
         Object object = getProperty("out");
 116  0
         if (object != null) {
 117  0
             InvokerHelper.invokeMethod(object, "println", ArgumentListExpression.EMPTY_ARRAY);
 118   
         }
 119   
         else {
 120  0
             System.out.println();
 121   
         }
 122   
     }
 123   
 
 124   
     /**
 125   
      * Prints the value to the current 'out' variable which should be a PrintWriter
 126   
      * or at least have a print() method defined on it. 
 127   
      * If there is no 'out' property then print to standard out.
 128   
      */
 129  0
     public void print(Object value) {
 130  0
         Object object = getProperty("out");
 131  0
         if (object != null) {
 132  0
             InvokerHelper.invokeMethod(object, "print", new Object[] { value });
 133   
         }
 134   
         else {
 135  0
             System.out.print(value);
 136   
         }
 137   
     }
 138   
 
 139   
     /**
 140   
      * Prints the value and a newline to the current 'out' variable which should be a PrintWriter
 141   
      * or at least have a println() method defined on it. 
 142   
      * If there is no 'out' property then print to standard out.
 143   
      */
 144  0
     public void println(Object value) {
 145  0
         Object object = getProperty("out");
 146  0
         if (object != null) {
 147  0
             InvokerHelper.invokeMethod(object, "println", new Object[] { value });
 148   
         }
 149   
         else {
 150  0
             System.out.println(value);
 151   
         }
 152   
     }
 153   
     
 154   
     /**
 155   
      * A helper method to allow the dynamic evaluation of groovy expressions using this
 156   
      * scripts binding as the variable scope
 157   
      * 
 158   
      * @param expression is the Groovy script expression to evaluate
 159   
      */
 160  0
     public Object evaluate(String expression) throws CompilationFailedException, IOException {
 161  0
         GroovyShell shell = new GroovyShell(binding);
 162  0
         return shell.evaluate(expression);
 163   
     }
 164   
     
 165   
     /**
 166   
      * A helper method to allow the dynamic evaluation of groovy expressions using this
 167   
      * scripts binding as the variable scope
 168   
      * 
 169   
      * @param file is the Groovy script to evaluate
 170   
      */
 171  0
     public Object evaluate(File file) throws CompilationFailedException, IOException {
 172  0
         GroovyShell shell = new GroovyShell(binding);
 173  0
         return shell.evaluate(file);
 174   
     }
 175   
     
 176   
     /**
 177   
      * A helper method to allow scripts to be run taking command line arguments
 178   
      */
 179  0
     public void run(File file, String[] arguments) throws CompilationFailedException, IOException {
 180  0
         GroovyShell shell = new GroovyShell(binding);
 181  0
         shell.run(file, arguments);
 182   
     }
 183   
 }
 184