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   1  <?php
   2  /*
   3   *  $Id: AdhocTask.php 3076 2006-12-18 08:52:12Z fabien $
   4   *
   5   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
   6   * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
   7   * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
   8   * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
   9   * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  10   * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  11   * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  12   * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  13   * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  14   * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  15   * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  16   *
  17   * This software consists of voluntary contributions made by many individuals
  18   * and is licensed under the LGPL. For more information please see
  19   * <http://phing.info>.
  20   */
  21   
  22  require_once 'phing/Task.php';
  23  
  24  /**
  25   * Abstract class for creating adhoc Phing components in buildfile.
  26   *
  27   * By itself this class can be used to declare a single class within your buildfile.
  28   * You can then reference this class in any task that takes custom classes (selectors,
  29   * mappers, filters, etc.)
  30   * 
  31   * Subclasses exist for conveniently declaring and registering tasks and types.
  32   * 
  33   * @author   Hans Lellelid <hans@xmpl.org>
  34   * @version  $Revision: 1.6 $
  35   * @package  phing.tasks.system
  36   */
  37  class AdhocTask extends Task {
  38              
  39      /**
  40       * The PHP script
  41       * @var string
  42       */
  43      protected $script;
  44      
  45      protected $newClasses = array();
  46      
  47      /**
  48       * Main entry point
  49       */
  50      public function main() {    
  51          $this->execute();        
  52          if ($this->newClasses) {
  53              foreach($this->newClasses as $classname) {
  54                  $this->log("Added adhoc class " . $classname, PROJECT_MSG_VERBOSE);
  55              }
  56          } else {
  57              $this->log("Adhoc task executed but did not result in any new classes.", PROJECT_MSG_VERBOSE);
  58          }
  59      }
  60      
  61      /**
  62       * Get array of names of newly defined classes.
  63       * @return array
  64       */
  65      protected function getNewClasses() {
  66          return $this->newClasses;
  67      }
  68      
  69      /**
  70       * Load the adhoc class, and perform any core validation.
  71       * @return string The classname of the ProjectComponent class.
  72       * @throws BuildException - if more than one class is defined.
  73       */
  74      protected function execute() {
  75          $classes = get_declared_classes();        
  76          eval($this->script);        
  77          $this->newClasses = array_diff(get_declared_classes(), $classes);        
  78      }
  79              
  80      /**
  81       * Set the script.
  82       * @param string $script
  83       */
  84      public function addText($script) {
  85          $this->script = $script;
  86      }
  87             
  88  }