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30 day Evaluation Version distributed via the Maven Jar Repository. Clover is not free. You have 30 days to evaluate it. Please visit http://www.thecortex.net/clover to obtain a licensed version of Clover | |||||||||||||||||||
Source file | Conditionals | Statements | Methods | TOTAL | |||||||||||||||
Script.java | 0% | 0% | 0% | 0% |
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/*
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$Id: Script.java,v 1.17 2004/12/14 06:25:17 spullara Exp $
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Copyright 2003 (C) James Strachan and Bob Mcwhirter. All Rights Reserved.
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Redistribution and use of this software and associated documentation
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("Software"), with or without modification, are permitted provided
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that the following conditions are met:
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1. Redistributions of source code must retain copyright
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statements and notices. Redistributions must also contain a
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copy of this document.
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2. Redistributions in binary form must reproduce the
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above copyright notice, this list of conditions and the
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following disclaimer in the documentation and/or other
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materials provided with the distribution.
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3. The name "groovy" must not be used to endorse or promote
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products derived from this Software without prior written
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permission of The Codehaus. For written permission,
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please contact info@codehaus.org.
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4. Products derived from this Software may not be called "groovy"
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nor may "groovy" appear in their names without prior written
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permission of The Codehaus. "groovy" is a registered
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trademark of The Codehaus.
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5. Due credit should be given to The Codehaus -
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http://groovy.codehaus.org/
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THIS SOFTWARE IS PROVIDED BY THE CODEHAUS AND CONTRIBUTORS
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``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT
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NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
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FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
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THE CODEHAUS OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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package groovy.lang;
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import org.codehaus.groovy.ast.expr.ArgumentListExpression;
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import org.codehaus.groovy.control.CompilationFailedException;
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import org.codehaus.groovy.runtime.InvokerHelper;
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import java.io.File;
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import java.io.IOException;
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/**
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* This object represents a Groovy script
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*
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* @author <a href="mailto:james@coredevelopers.net">James Strachan</a>
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* @author Guillaume Laforge
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* @version $Revision: 1.17 $
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*/
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public abstract class Script extends GroovyObjectSupport { |
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private Binding binding = new Binding(); |
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protected Script() {
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} |
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protected Script(Binding binding) {
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this.binding = binding;
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} |
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public Binding getBinding() {
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return binding;
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} |
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public void setBinding(Binding binding) { |
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this.binding = binding;
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} |
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public Object getProperty(String property) {
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//System.out.println("Script.getProperty for: " + property + " with binding: " + binding.getVariables());
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try {
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return binding.getVariable(property);
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} catch (MissingPropertyException e) {
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return super.getProperty(property); |
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} |
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} |
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public void setProperty(String property, Object newValue) { |
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//System.out.println("Script.setProperty for: " + property + " with newValue: " + newValue);
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binding.setVariable(property, newValue); |
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//System.out.println("binding are now: " + binding.getVariables());
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} |
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/**
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* Invoke a method (or closure in the binding) defined.
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*
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* @param name method to call
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* @param args arguments to pass to the method
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* @return value
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*/
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public Object invokeMethod(String name, Object args) {
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try {
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return super.invokeMethod(name, args); |
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} |
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// if the method was not found in the current scope (the script's methods)
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// let's try to see if there's a method closure with the same name in the binding
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catch (MissingMethodException mme) {
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Object boundClosure = binding.getVariable(name); |
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if (boundClosure != null && boundClosure instanceof Closure) { |
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return ((Closure) boundClosure).call(args);
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} else {
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throw mme;
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} |
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} |
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} |
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/**
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* The main instance method of a script which has variables in scope
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* as defined by the current {@link Binding} instance.
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*
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* @return
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*/
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public abstract Object run();
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// println helper methods
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/**
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* Prints a newline to the current 'out' variable which should be a PrintWriter
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* or at least have a println() method defined on it.
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* If there is no 'out' property then print to standard out.
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*/
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public void println() { |
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Object object; |
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try {
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object = getProperty("out");
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} catch (MissingPropertyException e) {
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System.out.println(); |
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return;
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} |
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InvokerHelper.invokeMethod(object, "println", ArgumentListExpression.EMPTY_ARRAY);
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} |
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/**
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* Prints the value to the current 'out' variable which should be a PrintWriter
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* or at least have a print() method defined on it.
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* If there is no 'out' property then print to standard out.
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*/
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public void print(Object value) { |
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Object object; |
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try {
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object = getProperty("out");
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} catch (MissingPropertyException e) {
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System.out.print(value); |
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return;
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} |
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InvokerHelper.invokeMethod(object, "print", new Object[]{value}); |
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} |
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/**
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* Prints the value and a newline to the current 'out' variable which should be a PrintWriter
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* or at least have a println() method defined on it.
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* If there is no 'out' property then print to standard out.
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*/
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public void println(Object value) { |
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Object object; |
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try {
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object = getProperty("out");
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} catch (MissingPropertyException e) {
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System.out.println(value); |
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return;
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} |
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InvokerHelper.invokeMethod(object, "println", new Object[]{value}); |
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} |
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/**
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* A helper method to allow the dynamic evaluation of groovy expressions using this
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* scripts binding as the variable scope
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*
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* @param expression is the Groovy script expression to evaluate
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*/
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public Object evaluate(String expression) throws CompilationFailedException, IOException { |
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GroovyShell shell = new GroovyShell(binding);
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return shell.evaluate(expression);
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} |
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/**
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* A helper method to allow the dynamic evaluation of groovy expressions using this
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* scripts binding as the variable scope
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*
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* @param file is the Groovy script to evaluate
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*/
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public Object evaluate(File file) throws CompilationFailedException, IOException { |
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GroovyShell shell = new GroovyShell(binding);
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return shell.evaluate(file);
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} |
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/**
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* A helper method to allow scripts to be run taking command line arguments
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*/
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public void run(File file, String[] arguments) throws CompilationFailedException, IOException { |
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GroovyShell shell = new GroovyShell(binding);
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shell.run(file, arguments); |
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} |
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} |
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