Adding a new ImageMagickImageProcessor class to replace
[mir.git] / source / mircoders / entity / EntityImages.java
index d13ac5c..eb6392a 100755 (executable)
-package mircoders.entity;
-
-import java.lang.*;
-import java.io.*;
-import java.util.*;
-import java.sql.*;
-
-import mir.entity.*;
-import mir.misc.*;
-import mir.storage.*;
-
-/**
- * Diese Klasse enthält die Daten eines MetaObjekts
+/*
+ * Copyright (C) 2001, 2002 The Mir-coders group
+ *
+ * This file is part of Mir.
+ *
+ * Mir is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * Mir is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
  *
- * @author RK
- * @version 11.11.2000
+ * You should have received a copy of the GNU General Public License
+ * along with Mir; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ * In addition, as a special exception, The Mir-coders gives permission to link
+ * the code of this program with  any library licensed under the Apache Software License,
+ * The Sun (tm) Java Advanced Imaging library (JAI), The Sun JIMI library
+ * (or with modified versions of the above that use the same license as the above),
+ * and distribute linked combinations including the two.  You must obey the
+ * GNU General Public License in all respects for all of the code used other than
+ * the above mentioned libraries.  If you modify this file, you may extend this
+ * exception to your version of the file, but you are not obligated to do so.
+ * If you do not wish to do so, delete this exception statement from your version.
  */
 
+package mircoders.entity;
 
-public class EntityImages extends Entity
-{
-       private static int instances;
-
-       public EntityImages()
-       {
-               super();
-               instances++;
-       }
-
-       public EntityImages(StorageObject theStorage) {
-               this();
-               setStorage(theStorage);
-       }
-
-       //
-       // methods
-
-
-
-       public byte[] getImage()
-       {
-               theLog.printDebugInfo("--getimage started");
-               Connection con=null;Statement stmt=null;
-               byte[] img_data=null;
-
-               try {
-                       con = theStorageObject.getPooledCon();
-                       con.setAutoCommit(false);
-                       stmt = con.createStatement();
-                       ResultSet rs = theStorageObject.executeSql(stmt,"select image_data from images where id="+getId());
-                       if(rs!=null) {
-                               if (rs.next()) {
-                                        img_data = rs.getBytes(1);
-                               }
-                               rs.close();
-                       }
-               }
-               catch (Exception e) {theLog.printDebugInfo("-- getImage gescheitert: "+e.toString());}
-               finally {
-                       try {con.setAutoCommit(true); } catch (Exception e) {;}
-                       theStorageObject.freeConnection(con,stmt); }
-
-               return img_data;
-       }
-
-       public void setImage(byte[] uploadData, String imageType)
-       {
-        int type = 0;
-
-        //hack -mh
-        if (imageType.equals("1"))
-            type = 1;
-         //end hack
-
-               if (uploadData!=null) {
-                       Connection con=null;PreparedStatement pstmt=null;
-                       try {
-
-                               theLog.printDebugInfo("settimage :: making internal representation of image");
-                               WebdbImage webdbImage= new WebdbImage(uploadData,type);
-                               theLog.printDebugInfo("settimage :: made internal representation of image");
-                               byte[] imageData = webdbImage.getImage();
-                               theLog.printDebugInfo("settimage :: getImage");
-                               byte[] iconData = webdbImage.getIcon();
-                               theLog.printDebugInfo("settimage :: getIcon");
-
-                               if (iconData!=null && imageData!=null) {
-                                       con = theStorageObject.getPooledCon();
-                                       con.setAutoCommit(false);
-                                       theLog.printDebugInfo("settimage :: trying to insert image");
+import java.io.ByteArrayOutputStream;
+import java.io.InputStream;
+import java.sql.SQLException;
 
-                                       // setting values
-                                       String sql = "update images set img_height='"+webdbImage.getImageHeight() +
-                                               "',img_width='"   + webdbImage.getImageWidth() +
-                                               "',icon_height='" + webdbImage.getIconHeight() +
-                                               "',icon_width='"  + webdbImage.getIconWidth()  +  "', image_data=?, icon_data=? where id="+getId();
-                                       theLog.printDebugInfo("settimage :: updating sizes: "+ sql);
-                                       pstmt = con.prepareStatement(sql);
-                                       pstmt.setBytes(1, imageData);
-                                       pstmt.setBytes(2, iconData);
-                                       pstmt.executeUpdate();
-                                       sql="update content set is_produced='0' where to_media="+getId();
-                                       pstmt = con.prepareStatement(sql);
-                                       pstmt.executeUpdate();
-                               }
-                       }
-                       catch (Exception e) {theLog.printDebugInfo("settimage :: setImage gescheitert: "+e.toString());}
-                       finally {
-                               try {con.setAutoCommit(true); } catch (Exception e) {;}
-                               theStorageObject.freeConnection(con,pstmt); }
-               }
-       }
+import mir.log.LoggerWrapper;
+import mir.storage.DatabaseFailure;
+import mir.util.StreamCopier;
+import mir.media.image.ImageProcessor;
+// FIXME: delete this when finished testing ImageMagickImageProcessor
+//import mir.media.image.JAIImageProcessor;
+import mir.media.image.ImageMagickImageProcessor;
 
-       public void update() throws StorageObjectException {
-               super.update();
-               try {
-                       theStorageObject.executeUpdate("update content set is_produced='0' where to_media="+getId());
-               } catch (SQLException e) {
-                       theLog.printError("EntityImages :: update :: failed!! "+ e.toString());
-               }
-       }
+public class EntityImages extends EntityUploadedMedia
+{
+  private int maxImageSize = configuration.getInt("Producer.Image.MaxSize");
+  private int maxIconSize = configuration.getInt("Producer.Image.MaxIconSize");
+  private float minDescaleRatio = configuration.getFloat("Producer.Image.MinDescalePercentage")/100;
+  private int minDescaleReduction = configuration.getInt("Producer.Image.MinDescaleReduction");
 
-       public void setValues(HashMap theStringValues)
-       {
-               if (theStringValues != null) {
-                       if (!theStringValues.containsKey("is_published"))
-                        theStringValues.put("is_published","0");
-               }
-               super.setValues(theStringValues);
-       }
 
-       public byte[] getIcon()
-       {
-               Connection con=null;Statement stmt=null;
-               byte[] img_data=null;
+  public EntityImages()
+  {
+    super();
 
-               try {
-                       con = theStorageObject.getPooledCon();
-                       con.setAutoCommit(false);
-                       stmt = con.createStatement();
-                       ResultSet rs = theStorageObject.executeSql(stmt,"select icon_data from images where id="+getId());
-                       if(rs!=null) {
-                               if (rs.next()) {
-                                        img_data = rs.getBytes(1);
-                               }
-                               rs.close();
-                       }
-               }
-               catch (Exception e) {theLog.printDebugInfo("-- getIcon gescheitert: "+e.toString());}
-               finally {
-                       try {con.setAutoCommit(true); } catch (Exception e) {;}
-                       theStorageObject.freeConnection(con,stmt); }
+    logger = new LoggerWrapper("Entity.UploadedMedia.Images");
+  }
 
-               return img_data;
-       }
+  /**
+   * Retrieves the image data
+   */
+  public byte[] getImage() throws DatabaseFailure {
+    try {
+      return database.getBinaryField("select image_data from images where id="+getId());
+    }
+    catch (SQLException e) {
+      throw new DatabaseFailure(e);
+    }
+  }
 
-       public void finalize() {
-    instances--;
-    super.finalize();
+  /**
+   * Processes and saves image data
+   */
+  public void setImage(InputStream anInputStream, String type) throws DatabaseFailure {
+    if (anInputStream != null) {
+      try {
+        // FIXME: delete this when finished testing ImageMagickImageProcessor
+        //ByteArrayOutputStream inputData = new ByteArrayOutputStream();
+        //StreamCopier.copy(anInputStream, inputData);
+
+        ImageProcessor processor = new ImageMagickImageProcessor(anInputStream);
+        // FIXME: delete this when finished testing ImageMagickImageProcessor
+        //ImageProcessor processor = new JAIImageProcessor(inputData.toByteArray());
+        processor.descaleImage(maxImageSize, minDescaleRatio, minDescaleReduction);
+
+        ByteArrayOutputStream imageData = new ByteArrayOutputStream();
+        processor.writeScaledData(imageData, type);
+        database.setBinaryField("image_data", getId(), imageData.toByteArray());
+
+        setFieldValue("img_height", new Integer(processor.getScaledHeight()).toString());
+        setFieldValue("img_width", new Integer(processor.getScaledWidth()).toString());
+
+        imageData.reset();
+        processor.descaleImage(maxIconSize, minDescaleRatio, minDescaleReduction);
+        processor.writeScaledData(imageData, type);
+        database.setBinaryField("icon_data", getId(), imageData.toByteArray());
+
+        setFieldValue("icon_height", new Integer(processor.getScaledHeight()).toString());
+        setFieldValue("icon_width", new Integer(processor.getScaledWidth()).toString());
+        processor.cleanup();
+        update();
+      }
+      catch (Exception e) {
+        throw new DatabaseFailure(e);
+      }
+    }
   }
 
+  /**
+   * Takes an OutputStream as an argument and reads in the data
+   * from the DB and writes it to the OutputStream.
+   *
+   * It will also take care of closing the OutputStream.
+   */
+  public byte[] getIcon() throws DatabaseFailure {
+    try {
+      return database.getBinaryField("select icon_data from images where id="+getId());
+    }
+    catch (SQLException e) {
+      throw new DatabaseFailure(e);
+    }
+  }
 }