/**
 * 
 */
package at.gv.egiz.pdfas.io;

import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;

import at.gv.egiz.pdfas.api.io.DataSink;
import at.gv.egiz.pdfas.api.io.FileBased;

/**
 * @author wprinz
 * 
 */
public class FileBasedDataSink implements DataSink, FileBased
{
  protected File file = null;

  protected String mimeType = null;

  protected String characterEncoding = null;

  
  
  /**
   * @param file
   * @throws IOException 
   */
  public FileBasedDataSink(File file) throws IOException
  {
    if (!file.exists())
    {
      file.createNewFile();
    }
    if (!file.isFile())
    {
      throw new IOException("The file '" + file + "' is not a normal file.");
    }
    if (!file.canWrite())
    {
      throw new IOException("The file '" + file + "' cannot be written.");
    }

    this.file = file;
  }

  /**
   * @throws FileNotFoundException
   * @see at.gv.egiz.pdfas.api.io.DataSink#createOutputStream(java.lang.String)
   */
  public OutputStream createOutputStream(String mimeType) throws FileNotFoundException
  {
    return createOutputStream(mimeType, null);
  }

  /**
   * @throws FileNotFoundException
   * @see at.gv.egiz.pdfas.api.io.DataSink#createOutputStream(java.lang.String,
   *      java.lang.String)
   */
  public OutputStream createOutputStream(String mimeType, String characterEncoding) throws FileNotFoundException
  {
    this.mimeType = mimeType;
    this.characterEncoding = characterEncoding;
    return new FileOutputStream(this.file);
  }

  /**
   * @see at.gv.egiz.pdfas.api.io.DataSink#getMimeType()
   */
  public String getMimeType()
  {
    return this.mimeType;
  }

  /**
   * @see at.gv.egiz.pdfas.api.io.DataSink#getCharacterEncoding()
   */
  public String getCharacterEncoding()
  {
    return this.characterEncoding;
  }

  /**
   * @see at.gv.egiz.pdfas.api.io.FileBased#getFile()
   */
  public File getFile()
  {
    return this.file;
  }

}