package eu.simuline.m2latex.antTask;
   
   import org.apache.tools.ant.Task;
   import org.apache.tools.ant.Project;
   
   import eu.simuline.m2latex.core.Settings;
   import eu.simuline.m2latex.core.LatexProcessor;
   import eu.simuline.m2latex.core.ParameterAdapter;
   
  import java.io.File;
  
  /**
   * Abstract base class of all tasks provided by this latex converter. 
   * @author ernst
   *
   */
  abstract class AbstractLatexTask extends Task implements ParameterAdapter {
  
      /**
       * Contains all parameters for executing this task. 
       */
      protected Settings settings;
  
      // set by {@link #initialize()}. 
      protected LatexProcessor latexProcessor;
  
      /**
       * Invoked by ant returning a container for all parameters 
       * and initializing {@link #settings}. 
       */
      public Settings createSettings() {
  	return this.settings = new Settings();
      }
  
      private File getPropertyFile(String prop) {
  	return new File(getProject().getProperty(prop));
      }
  
      // api-docs inherited from ParameterAdapter 
      public final void initialize() {
  	// use of the reference to Project-instance
          //String message = getProperty("ant.project.name");
          // Task's log method
          //log("Here is project '" + message + "'. ");
  	// almost the same as getProject().log(this, msg, msgLevel)
  
          // where this task is used?
          //log("I am used in: " + getLocation() + "'. ");
  	if (this.settings == null) {
  	    // Here, no configuration is defined in build file, 
  	    // i.e. object is not created by ant
  	    this.settings = new Settings();
          }
  	this.settings.setBaseDirectory(getPropertyFile("basedir"));
  	this.settings.setTargetSiteDirectory(getPropertyFile("targetSiteDir"));
  	this.settings.setTargetDirectory(getPropertyFile("targetDir"));
  
   	//log("settings: \n" + this.settings);
  
  	 this.latexProcessor = 
  	     new LatexProcessor(this.settings,  
  				new AntLogWrapper(getProject()), 
  				this);
      }
  
   }