Clover coverage report - Ant Coverage
Coverage timestamp: Tue Apr 8 2003 20:43:55 EST
file stats: LOC: 135   Methods: 4
NCLOC: 43   Classes: 1
 
 Source file Conditionals Statements Methods TOTAL
RegexpFactory.java 50% 52.4% 100% 58.1%
 1   
 /*
 2   
  * The Apache Software License, Version 1.1
 3   
  *
 4   
  * Copyright (c) 2001-2003 The Apache Software Foundation.  All rights 
 5   
  * reserved.
 6   
  *
 7   
  * Redistribution and use in source and binary forms, with or without
 8   
  * modification, are permitted provided that the following conditions
 9   
  * are met:
 10   
  *
 11   
  * 1. Redistributions of source code must retain the above copyright
 12   
  *    notice, this list of conditions and the following disclaimer.
 13   
  *
 14   
  * 2. Redistributions in binary form must reproduce the above copyright
 15   
  *    notice, this list of conditions and the following disclaimer in
 16   
  *    the documentation and/or other materials provided with the
 17   
  *    distribution.
 18   
  *
 19   
  * 3. The end-user documentation included with the redistribution, if
 20   
  *    any, must include the following acknowlegement:
 21   
  *       "This product includes software developed by the
 22   
  *        Apache Software Foundation (http://www.apache.org/)."
 23   
  *    Alternately, this acknowlegement may appear in the software itself,
 24   
  *    if and wherever such third-party acknowlegements normally appear.
 25   
  *
 26   
  * 4. The names "Ant" and "Apache Software
 27   
  *    Foundation" must not be used to endorse or promote products derived
 28   
  *    from this software without prior written permission. For written
 29   
  *    permission, please contact apache@apache.org.
 30   
  *
 31   
  * 5. Products derived from this software may not be called "Apache"
 32   
  *    nor may "Apache" appear in their names without prior written
 33   
  *    permission of the Apache Group.
 34   
  *
 35   
  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
 36   
  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 37   
  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 38   
  * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
 39   
  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 40   
  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 41   
  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
 42   
  * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 43   
  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 44   
  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
 45   
  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 46   
  * SUCH DAMAGE.
 47   
  * ====================================================================
 48   
  *
 49   
  * This software consists of voluntary contributions made by many
 50   
  * individuals on behalf of the Apache Software Foundation.  For more
 51   
  * information on the Apache Software Foundation, please see
 52   
  * <http://www.apache.org/>.
 53   
  */
 54   
 package org.apache.tools.ant.util.regexp;
 55   
 
 56   
 import org.apache.tools.ant.BuildException;
 57   
 import org.apache.tools.ant.Project;
 58   
 
 59   
 /***
 60   
  * Regular expression factory, which will create Regexp objects.  The
 61   
  * actual implementation class depends on the System or Ant Property:
 62   
  * <code>ant.regexp.regexpimpl</code>.
 63   
  *
 64   
  * @author Matthew Inger <a href="mailto:mattinger@mindless.com">mattinger@mindless.com</a>
 65   
  * @version $Revision: 1.10 $
 66   
  */
 67   
 public class RegexpFactory extends RegexpMatcherFactory {
 68  1
     public RegexpFactory() {
 69   
     }
 70   
 
 71   
     /***
 72   
      * Create a new regular expression matcher instance.
 73   
      */
 74  3
     public Regexp newRegexp() throws BuildException {
 75  3
         return (Regexp) newRegexp(null);
 76   
     }
 77   
 
 78   
     /***
 79   
      * Create a new regular expression matcher instance.
 80   
      *
 81   
      * @param p Project whose ant.regexp.regexpimpl property will be used.
 82   
      */
 83  3
     public Regexp newRegexp(Project p) throws BuildException {
 84  3
         String systemDefault = null;
 85  3
         if (p == null) {
 86  3
             systemDefault = System.getProperty("ant.regexp.regexpimpl");
 87   
         } else {
 88  0
             systemDefault = p.getProperty("ant.regexp.regexpimpl");
 89   
         }
 90   
         
 91  3
         if (systemDefault != null) {
 92  0
             return createRegexpInstance(systemDefault);
 93   
             // XXX     should we silently catch possible exceptions and try to 
 94   
             //         load a different implementation?
 95   
         }
 96   
 
 97  3
         try {
 98  3
             testAvailability("java.util.regex.Matcher");
 99  3
             return createRegexpInstance("org.apache.tools.ant.util.regexp.Jdk14RegexpRegexp");
 100   
         } catch (BuildException be) {}
 101   
         
 102  0
         try {
 103  0
             testAvailability("org.apache.oro.text.regex.Pattern");
 104  0
             return createRegexpInstance("org.apache.tools.ant.util.regexp.JakartaOroRegexp");
 105   
         } catch (BuildException be) {}
 106   
         
 107  0
         try {
 108  0
             testAvailability("org.apache.regexp.RE");
 109  0
             return createRegexpInstance("org.apache.tools.ant.util.regexp.JakartaRegexpRegexp");
 110   
         } catch (BuildException be) {}
 111   
 
 112  0
         throw new BuildException("No supported regular expression matcher found");
 113   
     }
 114   
 
 115   
     /**
 116   
      * Wrapper over RegexpMatcherFactory.createInstance that ensures that 
 117   
      * we are dealing with a Regexp implementation.
 118   
      *
 119   
      * @since 1.3
 120   
      * 
 121   
      * @see RegexpMatcherFactory#createInstance(String)
 122   
      */
 123  3
     protected Regexp createRegexpInstance(String classname) 
 124   
         throws BuildException {
 125   
 
 126  3
         RegexpMatcher m = createInstance(classname);
 127  3
         if (m instanceof Regexp) {
 128  3
             return (Regexp) m;
 129   
         } else {
 130  0
             throw new BuildException(classname + " doesn't implement the Regexp interface");
 131   
         }
 132   
     }
 133   
 
 134   
 }
 135