/*
    * Copyright 2010-2013 smartics, Kronseder & Reiner GmbH
    *
    * Licensed under the Apache License, Version 2.0 (the "License");
    * you may not use this file except in compliance with the License.
    * You may obtain a copy of the License at
    *
    *     http://www.apache.org/licenses/LICENSE-2.0
    *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  package de.smartics.testdoc.core.adapter;
  
  import java.io.File;
  import java.io.IOException;
  import java.net.URI;
  
  import javax.annotation.processing.Filer;
  import javax.lang.model.element.Element;
  import javax.tools.FileObject;
  import javax.tools.StandardLocation;
  
  import de.smartics.testdoc.core.doc.FileHelper;
  import de.smartics.testdoc.core.doc.Type;
  
  /**
   * Exports the documentation fragments to a directory via the APT filer.
   *
   * @author <a href="mailto:robert.reiner@smartics.de">Robert Reiner</a>
   * @version $Revision:591 $
   */
  public class FilerExportAdapter extends AbstractFileBasedExportAdapter
  {
    // ********************************* Fields *********************************
  
    // --- constants ------------------------------------------------------------
  
    // --- members --------------------------------------------------------------
  
    /**
     * The filer to create resources.
     */
    private final Filer filer;
  
    // ****************************** Initializer *******************************
  
    // ****************************** Constructors ******************************
  
    /**
     * Default constructor.
     */
    public FilerExportAdapter(final Filer filer)
    {
      this.filer = filer;
    }
  
    // ****************************** Inner Classes *****************************
  
    // ********************************* Methods ********************************
  
    // --- init -----------------------------------------------------------------
  
    // --- get&set --------------------------------------------------------------
  
    // --- business -------------------------------------------------------------
  
    @Override
    protected File[] createFileRefs(final Type testCaseType)
      throws IllegalStateException
    {
      try
      {
        final FileObject fileObject =
            filer.createResource(StandardLocation.SOURCE_OUTPUT,
                "de.smartics.testdoc.ser", testCaseType.toString() + ".ser",
                (Element[]) null);
        final File file = createFile(fileObject);
        final File dir = file.getParentFile();
        return createFileRefs(testCaseType, dir);
      }
      catch (IOException e)
      {
        throw new IllegalStateException(
            "Cannot create file object to for test case type '" + testCaseType
                + "'.");
      }
    }
  
    private File createFile(final FileObject fileObject)
    {
      final URI uri = fileObject.toUri();
      try
      {
        final File file = new File(uri);
        return file;
     }
     catch (final IllegalArgumentException e)
     {
       throw new IllegalStateException("Cannot create file with URI '" + uri
                                       + "'.", e);
     }
   }
 
   @Override
   protected File createFileRef(final Type testCaseType, final Type uutType)
   {
     try
     {
       final FileObject fileObject =
           filer.createResource(StandardLocation.SOURCE_OUTPUT,
               "de.smartics.testdoc.ser", testCaseType.toString() + '-'
                                          + uutType.toString() + ".ser",
               (Element[]) null);
       final File file = new File(fileObject.toUri());
       FileHelper.provideDir(file.getParentFile());
       return file;
     }
     catch (final IOException e)
     {
       throw new IllegalStateException(
           "Cannot create file object to for test case type '" + testCaseType
               + " and UUT type '" + uutType + "'.");
     }
   }
 
   // --- object basics --------------------------------------------------------
 
 }