package eu.simuline.m2latex.antTask;
   
   import org.apache.tools.ant.Task;
   
   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);
    }
  
  }