Clover coverage report - groovy - 1.0-beta-7
Coverage timestamp: Wed Sep 29 2004 16:55:52 BST
file stats: LOC: 192   Methods: 12
NCLOC: 77   Classes: 1
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 Source file Conditionals Statements Methods TOTAL
Script.java - 0% 0% 0%
coverage
 1   
 /*
 2   
  $Id: Script.java,v 1.14 2004/07/18 12:46:09 tug 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: 1.14 $
 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
             try {
 82  0
                 return binding.getVariable(property);
 83   
             }
 84   
         catch (MissingPropertyException e) {
 85  0
               return super.getProperty(property);
 86   
          }
 87   
     }
 88   
 
 89  0
     public void setProperty(String property, Object newValue) {
 90   
         //System.out.println("Script.setProperty for: " + property + " with newValue: " + newValue);
 91  0
         binding.setVariable(property, newValue);
 92   
         //System.out.println("binding are now: " + binding.getVariables());
 93   
     }
 94   
 
 95   
     /**
 96   
      * The main instance method of a script which has variables in scope
 97   
      * as defined by the current {@link Binding} instance.
 98   
      * 
 99   
      * @return
 100   
      */
 101   
     public abstract Object run();
 102   
 
 103   
     // println helper methods
 104   
 
 105   
     /**
 106   
      * Prints a newline to the current 'out' variable which should be a PrintWriter
 107   
      * or at least have a println() method defined on it.
 108   
      * If there is no 'out' property then print to standard out.
 109   
      */
 110  0
     public void println() {
 111  0
             Object object;
 112   
             
 113  0
             try {
 114  0
                 object = getProperty("out");
 115   
             }
 116   
          catch (MissingPropertyException e) {
 117  0
             System.out.println();
 118  0
             return;
 119   
         }
 120   
          
 121  0
          InvokerHelper.invokeMethod(object, "println", ArgumentListExpression.EMPTY_ARRAY);
 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;
 131   
         
 132  0
         try {
 133  0
             object = getProperty("out");
 134   
         }
 135   
          catch (MissingPropertyException e) {
 136  0
             System.out.print(value);
 137  0
             return;
 138   
         }
 139   
          
 140  0
          InvokerHelper.invokeMethod(object, "print", new Object[] { value });
 141   
     }
 142   
 
 143   
     /**
 144   
      * Prints the value and a newline to the current 'out' variable which should be a PrintWriter
 145   
      * or at least have a println() method defined on it. 
 146   
      * If there is no 'out' property then print to standard out.
 147   
      */
 148  0
     public void println(Object value) {
 149  0
         Object object;
 150   
         
 151  0
         try {
 152  0
             object = getProperty("out");
 153   
         }
 154   
          catch (MissingPropertyException e) {
 155  0
             System.out.println(value);
 156  0
             return;
 157   
         }
 158   
          
 159  0
          InvokerHelper.invokeMethod(object, "println", new Object[] { value });
 160   
     }
 161   
     
 162   
     /**
 163   
      * A helper method to allow the dynamic evaluation of groovy expressions using this
 164   
      * scripts binding as the variable scope
 165   
      * 
 166   
      * @param expression is the Groovy script expression to evaluate
 167   
      */
 168  0
     public Object evaluate(String expression) throws CompilationFailedException, IOException {
 169  0
         GroovyShell shell = new GroovyShell(binding);
 170  0
         return shell.evaluate(expression);
 171   
     }
 172   
     
 173   
     /**
 174   
      * A helper method to allow the dynamic evaluation of groovy expressions using this
 175   
      * scripts binding as the variable scope
 176   
      * 
 177   
      * @param file is the Groovy script to evaluate
 178   
      */
 179  0
     public Object evaluate(File file) throws CompilationFailedException, IOException {
 180  0
         GroovyShell shell = new GroovyShell(binding);
 181  0
         return shell.evaluate(file);
 182   
     }
 183   
     
 184   
     /**
 185   
      * A helper method to allow scripts to be run taking command line arguments
 186   
      */
 187  0
     public void run(File file, String[] arguments) throws CompilationFailedException, IOException {
 188  0
         GroovyShell shell = new GroovyShell(binding);
 189  0
         shell.run(file, arguments);
 190   
     }
 191   
 }
 192