source/mircoders/entity/EntityImages.java

   1 /*
   2  * Copyright (C) 2001, 2002  The Mir-coders group
   3  *
   4  * This file is part of Mir.
   5  *
   6  * Mir is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * Mir is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with Mir; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  *
  20  * In addition, as a special exception, The Mir-coders gives permission to link
  21  * the code of this program with the com.oreilly.servlet library, any library
  22  * licensed under the Apache Software License, The Sun (tm) Java Advanced
  23  * Imaging library (JAI), The Sun JIMI library (or with modified versions of
  24  * the above that use the same license as the above), and distribute linked
  25  * combinations including the two.  You must obey the GNU General Public
  26  * License in all respects for all of the code used other than the above
  27  * mentioned libraries.  If you modify this file, you may extend this exception
  28  * to your version of the file, but you are not obligated to do so.  If you do
  29  * not wish to do so, delete this exception statement from your version.
  30  */
  31
  32 package mircoders.entity;
  33
  34 import java.lang.*;
  35 import java.io.*;
  36 import java.util.*;
  37 import java.sql.*;
  38
  39 /*
  40  * kind of hack for postgres non-standard LargeObjects that Poolman
  41  * doesn't know about. see all the casting, LargeObj stuff in getIcon, getImage
  42  * at some point when postgres has normal BLOB support, this should go.
  43  */
  44 import org.postgresql.Connection;
  45 import org.postgresql.largeobject.LargeObject;
  46 import org.postgresql.largeobject.LargeObjectManager;
  47
  48 import mir.entity.*;
  49 import mir.misc.*;
  50 import mir.storage.*;
  51
  52 /**
  53  * Diese Klasse enthält die Daten eines MetaObjekts
  54  *
  55  * @author RK
  56  * @version 11.11.2000
  57  */
  58
  59
  60 public class EntityImages extends EntityUploadedMedia
  61 {
  62         public EntityImages()
  63         {
  64                 super();
  65         }
  66
  67         public EntityImages(StorageObject theStorage) {
  68                 this();
  69                 setStorage(theStorage);
  70         }
  71
  72         //
  73         // methods
  74
  75
  76
  77         public byte[] getImage() throws StorageObjectException
  78         {
  79                 theLog.printDebugInfo("--getimage started");
  80                 java.sql.Connection con=null;Statement stmt=null;
  81                 byte[] img_data=null;
  82
  83                 try {
  84                         con = theStorageObject.getPooledCon();
  85                         con.setAutoCommit(false);
  86                         LargeObjectManager lom;
  87             java.sql.Connection jCon;
  88             stmt = con.createStatement();
  89                         ResultSet rs = theStorageObject.executeSql(stmt,
  90                             "select image_data from images where id="+getId());
  91             jCon = ((com.codestudio.sql.PoolManConnectionHandle)con)
  92                     .getNativeConnection();
  93             lom = ((org.postgresql.Connection)jCon).getLargeObjectAPI();
  94                         if(rs!=null) {
  95               if (rs.next()) {
  96                 LargeObject lob = lom.open(rs.getInt(1));
  97                 img_data = lob.read(lob.size());
  98                 lob.close();
  99                 //img_data = rs.getBytes(1);
 100               }
 101             rs.close();
 102                         }
 103                 } catch (Exception e) {
 104           e.printStackTrace();
 105           theLog.printError("EntityImages -- getImage failed"+e.toString());
 106           throwStorageObjectException(e, "EntityImages -- getImage failed: ");
 107         }
 108         finally {
 109           try {
 110             con.setAutoCommit(true);
 111           } catch (Exception e) {
 112             e.printStackTrace();
 113             theLog.printError(
 114                     "EntityImages -- getImage reseting transaction mode failed"
 115                     +e.toString());
 116           }
 117           theStorageObject.freeConnection(con,stmt);
 118         }
 119
 120                 return img_data;
 121         }
 122
 123         public void setImage(byte[] uploadData, String type)
 124             throws StorageObjectException {
 125
 126                 if (uploadData!=null) {
 127                         java.sql.Connection con=null;PreparedStatement pstmt=null;
 128                         try {
 129
 130                                 theLog.printDebugInfo("settimage :: making internal representation of image");
 131                                 WebdbImage webdbImage= new WebdbImage(uploadData, type);
 132                                 theLog.printDebugInfo("settimage :: made internal representation of image");
 133                                 byte[] imageData = webdbImage.getImage();
 134                                 theLog.printDebugInfo("settimage :: getImage");
 135                                 byte[] iconData = webdbImage.getIcon();
 136                                 theLog.printDebugInfo("settimage :: getIcon");
 137
 138
 139                                 if (iconData!=null && imageData!=null) {
 140                                         con = theStorageObject.getPooledCon();
 141                                         con.setAutoCommit(false);
 142                                         theLog.printDebugInfo("settimage :: trying to insert image");
 143
 144                                         // setting values
 145                     LargeObjectManager lom;
 146                     java.sql.Connection jCon;
 147                     jCon = ((com.codestudio.sql.PoolManConnectionHandle)con)
 148                             .getNativeConnection();
 149                     lom = ((org.postgresql.Connection)jCon).getLargeObjectAPI();
 150                     int oidImage = lom.create();
 151                     int oidIcon = lom.create();
 152                     LargeObject lobImage = lom.open(oidImage);
 153                     LargeObject lobIcon = lom.open(oidIcon);
 154                     lobImage.write(imageData);
 155                     lobIcon.write(iconData);
 156                     lobImage.close();
 157                     lobIcon.close();
 158                     String sql = "update images set img_height='"
 159                         +webdbImage.getImageHeight() +
 160                                                 "',img_width='"   + webdbImage.getImageWidth() +
 161                                                 "',icon_height='" + webdbImage.getIconHeight() +
 162                                                 "',icon_width='"  + webdbImage.getIconWidth()
 163                         +  "', image_data="+oidImage+", icon_data="+oidIcon
 164                         +" where id="+getId();
 165                                         theLog.printDebugInfo("settimage :: updating sizes: "+ sql);
 166                                         pstmt = con.prepareStatement(sql);
 167                                         //pstmt.setBytes(1, imageData);
 168                                         //pstmt.setBytes(2, iconData);
 169                                         pstmt.executeUpdate();
 170                                         sql="update content set is_produced='0' where to_media="+getId();
 171                                         pstmt = con.prepareStatement(sql);
 172                                         pstmt.executeUpdate();
 173                                 }
 174                         }
 175                         catch (Exception e) {throwStorageObjectException(e, "settimage :: setImage gescheitert: ");}
 176                         finally {
 177                                 try { if (con!=null) con.setAutoCommit(true); } catch (Exception e) {;}
 178                                 theStorageObject.freeConnection(con,pstmt); }
 179                 }
 180         }
 181
 182         public void update() throws StorageObjectException {
 183                 super.update();
 184                 try {
 185                         theStorageObject.executeUpdate("update content set is_produced='0' where to_media="+getId());
 186                 } catch (SQLException e) {
 187                         throwStorageObjectException(e, "EntityImages :: update :: failed!! ");
 188                 }
 189         }
 190
 191         public void setValues(HashMap theStringValues)
 192         {
 193                 if (theStringValues != null) {
 194                         if (!theStringValues.containsKey("is_published"))
 195                          theStringValues.put("is_published","0");
 196                 }
 197                 super.setValues(theStringValues);
 198         }
 199
 200         public byte[] getIcon() throws StorageObjectException
 201         {
 202                 java.sql.Connection con=null;Statement stmt=null;
 203                 byte[] img_data=null;
 204
 205                 try {
 206                         con = theStorageObject.getPooledCon();
 207                         con.setAutoCommit(false);
 208             LargeObjectManager lom;
 209             java.sql.Connection jCon;
 210                         stmt = con.createStatement();
 211                         ResultSet rs = theStorageObject.executeSql(stmt,
 212                             "select icon_data from images where id="+getId());
 213             jCon = ((com.codestudio.sql.PoolManConnectionHandle)con)
 214                     .getNativeConnection();
 215             lom = ((org.postgresql.Connection)jCon).getLargeObjectAPI();
 216                         if(rs!=null) {
 217                                 if (rs.next()) {
 218                   LargeObject lob = lom.open(rs.getInt(1));
 219                   img_data = lob.read(lob.size());
 220                   lob.close();
 221                   //img_data = rs.getBytes(1);
 222                                 }
 223                 rs.close();
 224                         }
 225                 } catch (Exception e) {
 226           e.printStackTrace();
 227           theLog.printError("EntityImages -- getIcon failed"+e.toString());
 228           throwStorageObjectException(e, "EntityImages -- getIcon failed:");
 229                 } finally {
 230           try {
 231             con.setAutoCommit(true);
 232           } catch (Exception e) {
 233             e.printStackTrace();
 234             theLog.printError(
 235                     "EntityImages -- getIcon reseting transaction mode failed"
 236                     +e.toString());
 237           }
 238           theStorageObject.freeConnection(con,stmt);
 239        }
 240
 241        return img_data;
 242         }
 243
 244 }