/* Copyright 2010 ESRI
* 
* All rights reserved under the copyright laws of the United States
* and applicable international laws, treaties, and conventions.
* 
* You may freely redistribute and use this sample code, with or
* without modification, provided you include the original copyright
* notice and use restrictions.
* 
* See the use restrictions.
* 
*/
/* Copyright 2010 ESRI
* 
* All rights reserved under the copyright laws of the United States
* and applicable international laws, treaties, and conventions.
* 
* You may freely redistribute and use this sample code, with or
* without modification, provided you include the original copyright
* notice and use restrictions.
* 
* See the use restrictions at <your ArcGIS install location>/DeveloperKit10.0/userestrictions.txt.
* 
*/
package arcgissamples.raster;

import java.io.File;
import java.io.IOException;

import com.esri.arcgis.datasourcesraster.RasterDataset;
import com.esri.arcgis.datasourcesraster.RasterWorkspace;
import com.esri.arcgis.datasourcesraster.RasterWorkspaceFactory;
import com.esri.arcgis.system.AoInitialize;
import com.esri.arcgis.system.EngineInitializer;


public class CreateWorldFile
{
  public CreateWorldFile()
  {
    
  }
  
  public static void main(String[] args)
  {
    System.out.println("Starting CreateWorldFile - An ArcObjects Java SDK Developer Sample");

    try
    {
      // Initialize the engine and licenses.
      EngineInitializer.initializeEngine();

      AoInitialize aoInit = new AoInitialize();
      initializeArcGISLicenses(aoInit);

      //Get DEVKITHOME Home
      String devKitHome = System.getenv("AGSDEVKITJAVA");
      
      String inPath = devKitHome + "java" + File.separator + 
      "samples" + File.separator + 
      "data" + File.separator + 
      "raster" ;
      
      CreateWorldFile create = new CreateWorldFile();
      create.createWorldFile(inPath, "dem1");
      
      aoInit.shutdown();
    }
    catch (Exception e)
    {
      e.printStackTrace();
    }
  }

  /**
   * Export a raster dataset's georeference information to a world file.
   * 
   * @param path
   *            path to raster dataset on disk
   * @param name
   *            raster dataset name
   * @throws IOException
   *             if couldn't create a world file from the input raster data
   */
  private void createWorldFile(String path, String name) throws IOException
  {
    RasterDataset rasterDataset = null;
    try
    {
      // Get a raster dataset so as to create the world file, by calling
      // write(), which is defined in the IWorldFileExport interface which is
      // implemented by RasterDataset.
      RasterWorkspaceFactory rasterWorkspaceFactory = new RasterWorkspaceFactory();
      RasterWorkspace rasterWorkspace = new RasterWorkspace(rasterWorkspaceFactory.openFromFile(path, 0));
      rasterDataset = (RasterDataset) rasterWorkspace.openRasterDataset(name);
    }
    catch (IOException e)
    {
      System.out.println("Couldn't access raster dataset.");
      throw e;
    }
    
    try
    {
      rasterDataset.write();
      System.out.println("World File has been created for " + rasterDataset.getCompleteName());
    }
    catch (IOException e)
    {
      System.out.println("Couldn't create world file.");
      throw e;
    }
  }

  /**
   * Initializes the lowest available ArcGIS License
   */
  static void initializeArcGISLicenses(AoInitialize ao) {
    try {
      
      if (ao.isProductCodeAvailable(com.esri.arcgis.system.esriLicenseProductCode.esriLicenseProductCodeEngine) == com.esri.arcgis.system.esriLicenseStatus.esriLicenseAvailable)
        ao.initialize(com.esri.arcgis.system.esriLicenseProductCode.esriLicenseProductCodeEngine);
      else if (ao.isProductCodeAvailable(com.esri.arcgis.system.esriLicenseProductCode.esriLicenseProductCodeArcView) == com.esri.arcgis.system.esriLicenseStatus.esriLicenseAvailable)
        ao.initialize(com.esri.arcgis.system.esriLicenseProductCode.esriLicenseProductCodeArcView);
      else if (ao.isProductCodeAvailable(com.esri.arcgis.system.esriLicenseProductCode.esriLicenseProductCodeArcEditor) == com.esri.arcgis.system.esriLicenseStatus.esriLicenseAvailable)
        ao.initialize(com.esri.arcgis.system.esriLicenseProductCode.esriLicenseProductCodeArcEditor);
      else if (ao.isProductCodeAvailable(com.esri.arcgis.system.esriLicenseProductCode.esriLicenseProductCodeArcInfo) == com.esri.arcgis.system.esriLicenseStatus.esriLicenseAvailable)
        ao.initialize(com.esri.arcgis.system.esriLicenseProductCode.esriLicenseProductCodeArcInfo);
      else
      {
        System.err.println("Could not initialize an Engine, ArcView, ArcEditor, or ArcInfo license. Exiting application.");
        System.exit(-1);
      }  
      ao.checkOutExtension(com.esri.arcgis.system.esriLicenseExtensionCode.esriLicenseExtensionCodeSpatialAnalyst);
    } catch (Exception e) {
      e.printStackTrace();
    }
  }

}