source/mircoders/entity/EntityAudio.java

   1 package mircoders.entity;
   2
   3 import java.lang.*;
   4 import java.io.*;
   5 import java.util.*;
   6 import java.sql.*;
   7
   8 /*
   9  * kind of hack for postgres non-standard LargeObjects that Poolman
  10  * doesn't know about. see all the casting, LargeObj stuff in getIcon, getAudio
  11  * at some point when postgres has normal BLOB support, this should go.
  12  */
  13 import org.postgresql.Connection;
  14 import org.postgresql.largeobject.LargeObject;
  15 import org.postgresql.largeobject.LargeObjectManager;
  16
  17 import mir.entity.*;
  18 import mir.misc.*;
  19 import mir.storage.*;
  20
  21 /**
  22  * This class handles storage of audio data and meta data
  23  *
  24  * @author mh
  25  * @version 11.11.2000
  26  */
  27
  28
  29 public class EntityAudio extends EntityUploadedMedia
  30 {
  31         public EntityAudio()
  32         {
  33                 super();
  34         }
  35
  36         public EntityAudio(StorageObject theStorage) {
  37                 this();
  38                 setStorage(theStorage);
  39         }
  40
  41         //
  42         // methods
  43
  44
  45
  46         public byte[] getAudio() throws StorageObjectException
  47         {
  48                 theLog.printDebugInfo("--getaudio started");
  49                 java.sql.Connection con=null;Statement stmt=null;
  50                 byte[] data=null;
  51
  52                 try {
  53                         con = theStorageObject.getPooledCon();
  54                         con.setAutoCommit(false);
  55                         LargeObjectManager lom;
  56             java.sql.Connection jCon;
  57             stmt = con.createStatement();
  58                         ResultSet rs = theStorageObject.executeSql(stmt,
  59                             "select audio_data from audio where id="+getId());
  60             jCon = ((com.codestudio.sql.PoolManConnectionHandle)con)
  61                     .getNativeConnection();
  62             lom = ((org.postgresql.Connection)jCon).getLargeObjectAPI();
  63                         if(rs!=null) {
  64               if (rs.next()) {
  65                 LargeObject lob = lom.open(rs.getInt(1));
  66                 data = lob.read(lob.size());
  67                 lob.close();
  68                 //data = rs.getBytes(1);
  69               }
  70             rs.close();
  71                         }
  72                 } catch (Exception e) {
  73           e.printStackTrace();
  74           theLog.printError("EntityAudio -- getAudio failed"+e.toString());
  75           throwStorageObjectException(e, "EntityAudio -- getAudio failed: ");
  76         }
  77         finally {
  78           try {
  79             con.setAutoCommit(true);
  80           } catch (Exception e) {
  81             e.printStackTrace();
  82             theLog.printError(
  83                     "EntityAudio -- getAudio reseting transaction mode failed"
  84                     +e.toString());
  85           }
  86           theStorageObject.freeConnection(con,stmt);
  87         }
  88
  89                 return data;
  90         }
  91
  92         public void setAudio(byte[] uploadData)
  93             throws StorageObjectException {
  94
  95                 if (uploadData!=null) {
  96                         java.sql.Connection con=null;PreparedStatement pstmt=null;
  97                         try {
  98
  99                                 if (uploadData!=null) {
 100                                         con = theStorageObject.getPooledCon();
 101                                         con.setAutoCommit(false);
 102                                         theLog.printDebugInfo("setaudio :: trying to insert audio");
 103
 104                                         // setting values
 105                     LargeObjectManager lom;
 106                     java.sql.Connection jCon;
 107                     jCon = ((com.codestudio.sql.PoolManConnectionHandle)con)
 108                             .getNativeConnection();
 109                     lom = ((org.postgresql.Connection)jCon).getLargeObjectAPI();
 110                     int oid = lom.create();
 111                     LargeObject lob = lom.open(oid);
 112                     lob.write(uploadData);
 113                     lob.close();
 114                     String sql = "update images set"
 115                                  +" audio_data="+oid
 116                                  +" where id="+getId();
 117                                         theLog.printDebugInfo("setaudio :: updating: "+ sql);
 118                                         pstmt = con.prepareStatement(sql);
 119                                         //pstmt.setBytes(1, imageData);
 120                                         //pstmt.setBytes(2, iconData);
 121                                         pstmt.executeUpdate();
 122                                         sql="update content set is_produced='0' where to_media="+getId();
 123                                         pstmt = con.prepareStatement(sql);
 124                                         pstmt.executeUpdate();
 125                                 }
 126                         }
 127                         catch (Exception e) {
 128                 throwStorageObjectException(e,"setaudio ::failed: ");
 129             }
 130                         finally {
 131                                 try { if (con!=null) con.setAutoCommit(true); } catch (Exception e) {;}
 132                                 theStorageObject.freeConnection(con,pstmt); }
 133                 }
 134         }
 135
 136
 137         public void update() throws StorageObjectException {
 138                 super.update();
 139                 try {
 140                         theStorageObject.executeUpdate("update content set is_produced='0' where to_media="+getId());
 141                 } catch (SQLException e) {
 142                         throwStorageObjectException(e, "EntityAudio :: update :: failed!! ");
 143                 }
 144         }
 145
 146         public void setValues(HashMap theStringValues)
 147         {
 148                 if (theStringValues != null) {
 149                         if (!theStringValues.containsKey("is_published"))
 150                          theStringValues.put("is_published","0");
 151                 }
 152                 super.setValues(theStringValues);
 153         }
 154
 155 }