source/mircoders/entity/EntityAudio.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, getAudio
  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  * This class handles storage of audio data and meta data
  54  *
  55  * @author mh
  56  * @version 11.11.2000
  57  */
  58
  59
  60 public class EntityAudio extends EntityUploadedMedia
  61 {
  62         public EntityAudio()
  63         {
  64                 super();
  65         }
  66
  67         public EntityAudio(StorageObject theStorage) {
  68                 this();
  69                 setStorage(theStorage);
  70         }
  71
  72         //
  73         // methods
  74
  75
  76
  77         public byte[] getAudio() throws StorageObjectException
  78         {
  79                 theLog.printDebugInfo("--getaudio started");
  80                 java.sql.Connection con=null;Statement stmt=null;
  81                 byte[] 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 audio_data from audio 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                 data = lob.read(lob.size());
  98                 lob.close();
  99                 //data = rs.getBytes(1);
 100               }
 101             rs.close();
 102                         }
 103                 } catch (Exception e) {
 104           e.printStackTrace();
 105           theLog.printError("EntityAudio -- getAudio failed"+e.toString());
 106           throwStorageObjectException(e, "EntityAudio -- getAudio failed: ");
 107         }
 108         finally {
 109           try {
 110             con.setAutoCommit(true);
 111           } catch (Exception e) {
 112             e.printStackTrace();
 113             theLog.printError(
 114                     "EntityAudio -- getAudio reseting transaction mode failed"
 115                     +e.toString());
 116           }
 117           theStorageObject.freeConnection(con,stmt);
 118         }
 119
 120                 return data;
 121         }
 122
 123         public void setAudio(byte[] uploadData)
 124             throws StorageObjectException {
 125
 126                 if (uploadData!=null) {
 127                         java.sql.Connection con=null;PreparedStatement pstmt=null;
 128                         try {
 129
 130                                 if (uploadData!=null) {
 131                                         con = theStorageObject.getPooledCon();
 132                                         con.setAutoCommit(false);
 133                                         theLog.printDebugInfo("setaudio :: trying to insert audio");
 134
 135                                         // setting values
 136                     LargeObjectManager lom;
 137                     java.sql.Connection jCon;
 138                     jCon = ((com.codestudio.sql.PoolManConnectionHandle)con)
 139                             .getNativeConnection();
 140                     lom = ((org.postgresql.Connection)jCon).getLargeObjectAPI();
 141                     int oid = lom.create();
 142                     LargeObject lob = lom.open(oid);
 143                     lob.write(uploadData);
 144                     lob.close();
 145                     String sql = "update images set"
 146                                  +" audio_data="+oid
 147                                  +" where id="+getId();
 148                                         theLog.printDebugInfo("setaudio :: updating: "+ sql);
 149                                         pstmt = con.prepareStatement(sql);
 150                                         //pstmt.setBytes(1, imageData);
 151                                         //pstmt.setBytes(2, iconData);
 152                                         pstmt.executeUpdate();
 153                                         sql="update content set is_produced='0' where to_media="+getId();
 154                                         pstmt = con.prepareStatement(sql);
 155                                         pstmt.executeUpdate();
 156                                 }
 157                         }
 158                         catch (Exception e) {
 159                 throwStorageObjectException(e,"setaudio ::failed: ");
 160             }
 161                         finally {
 162                                 try { if (con!=null) con.setAutoCommit(true); } catch (Exception e) {;}
 163                                 theStorageObject.freeConnection(con,pstmt); }
 164                 }
 165         }
 166
 167
 168         public void update() throws StorageObjectException {
 169                 super.update();
 170                 try {
 171                         theStorageObject.executeUpdate("update content set is_produced='0' where to_media="+getId());
 172                 } catch (SQLException e) {
 173                         throwStorageObjectException(e, "EntityAudio :: update :: failed!! ");
 174                 }
 175         }
 176
 177         public void setValues(HashMap theStringValues)
 178         {
 179                 if (theStringValues != null) {
 180                         if (!theStringValues.containsKey("is_published"))
 181                          theStringValues.put("is_published","0");
 182                 }
 183                 super.setValues(theStringValues);
 184         }
 185
 186 }