+/*
+ * 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.
+ *
+ * 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 the com.oreilly.servlet library, 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;
import java.lang.*;
import java.util.*;
import java.sql.*;
+/*
+ * kind of hack for postgres non-standard LargeObjects that Poolman
+ * doesn't know about. see all the casting, LargeObj stuff in getIcon, getImage
+ * at some point when postgres has normal BLOB support, this should go.
+ */
+import org.postgresql.Connection;
+import org.postgresql.largeobject.LargeObject;
+import org.postgresql.largeobject.LargeObjectManager;
+import org.postgresql.largeobject.BlobInputStream;
+
import mir.entity.*;
import mir.misc.*;
import mir.storage.*;
/**
* Diese Klasse enthält die Daten eines MetaObjekts
*
- * @author RK
- * @version 11.11.2000
+ * @author RK, mh
+ * @version $Id: EntityImages.java,v 1.6.4.6 2002/12/10 09:51:22 mh Exp $
*/
-public class EntityImages extends AbstractEntity implements Entity
+public class EntityImages extends EntityUploadedMedia
{
- private static int instances;
public EntityImages()
{
super();
- instances++;
}
public EntityImages(StorageObject theStorage) {
// methods
-
- public byte[] getImage()
+ public InputStream getImage() throws StorageObjectException
{
theLog.printDebugInfo("--getimage started");
- Connection con=null;Statement stmt=null;
- byte[] img_data=null;
+ java.sql.Connection con=null;Statement stmt=null;
+ BlobInputStream in; InputStream img_in = null;
try {
con = theStorageObject.getPooledCon();
con.setAutoCommit(false);
- stmt = con.createStatement();
- ResultSet rs = theStorageObject.executeSql(stmt,"select image_data from images where id="+getId());
+ LargeObjectManager lom;
+ java.sql.Connection jCon;
+ stmt = con.createStatement();
+ ResultSet rs = theStorageObject.executeSql(stmt,
+ "select image_data from images where id="+getId());
+ jCon = ((com.codestudio.sql.PoolManConnectionHandle)con)
+ .getNativeConnection();
+ lom = ((org.postgresql.Connection)jCon).getLargeObjectAPI();
if(rs!=null) {
- if (rs.next()) {
- img_data = rs.getBytes(1);
- }
- rs.close();
+ if (rs.next()) {
+ LargeObject lob = lom.open(rs.getInt(1));
+ in = (BlobInputStream)lob.getInputStream();
+ img_in = new ImageInputStream(in, con, stmt);
+ }
+ 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;
+ } catch (Exception e) {
+ e.printStackTrace();
+ theLog.printError("EntityImages -- getImage failed"+e.toString());
+ try {
+ con.setAutoCommit(true);
+ } catch (Exception e2) {
+ e.printStackTrace();
+ theLog.printError(
+ "EntityImages -- getImage reseting transaction mode failed"
+ +e2.toString());
+ }
+ theStorageObject.freeConnection(con,stmt);
+ throwStorageObjectException(e, "EntityImages -- getImage failed: ");
+ }
+ //}
+ return img_in;
}
- public void setImage(byte[] uploadData, String imageType)
- {
- int type = 0;
-
- //hack -mh
- if (imageType.equals("1"))
- type = 1;
-
- if (uploadData!=null) {
- Connection con=null;PreparedStatement pstmt=null;
+ public void setImage(InputStream in, String type)
+ throws StorageObjectException {
+
+ if (in!=null) {
+ java.sql.Connection con=null;PreparedStatement pstmt=null;
+ File f = null;
try {
theLog.printDebugInfo("settimage :: making internal representation of image");
- WebdbImage webdbImage= new WebdbImage(uploadData,type);
+
+ File tempDir = new File(MirConfig.getProp("TempDir"));
+ f = File.createTempFile("mir", ".tmp", tempDir);
+ FileUtil.write(f, in);
+ WebdbImage webdbImage= new WebdbImage(f, 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");
-
- // 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); }
- }
- }
- 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());
- }
- }
+ con = theStorageObject.getPooledCon();
+ con.setAutoCommit(false);
+ theLog.printDebugInfo("settimage :: trying to insert image");
- public void setValues(HashMap theStringValues)
- {
- if (theStringValues != null) {
- if (!theStringValues.containsKey("is_published"))
- theStringValues.put("is_published","0");
+ // setting values
+ LargeObjectManager lom;
+ java.sql.Connection jCon;
+ jCon = ((com.codestudio.sql.PoolManConnectionHandle)con)
+ .getNativeConnection();
+ lom = ((org.postgresql.Connection)jCon).getLargeObjectAPI();
+ int oidImage = lom.create();
+ int oidIcon = lom.create();
+ LargeObject lobImage = lom.open(oidImage);
+ LargeObject lobIcon = lom.open(oidIcon);
+ webdbImage.setImage(lobImage.getOutputStream());
+ webdbImage.setIcon(lobIcon.getOutputStream());
+ lobImage.close();
+ lobIcon.close();
+
+ setValueForProperty("img_height",
+ new Integer(webdbImage.getImageHeight()).toString());
+ setValueForProperty("img_width",
+ new Integer(webdbImage.getImageWidth()).toString());
+ setValueForProperty("icon_height",
+ new Integer(webdbImage.getIconHeight()).toString());
+ setValueForProperty("icon_width",
+ new Integer(webdbImage.getIconWidth()).toString());
+ setValueForProperty("image_data", new Integer(oidImage).toString());
+ setValueForProperty("icon_data", new Integer(oidIcon).toString());
+ update();
+ }
+ catch (Exception e) {throwStorageObjectException(e, "settimage :: setImage gescheitert: ");}
+ finally {
+ try {
+ if (con!=null)
+ con.setAutoCommit(true);
+ // get rid of the temp. file
+ f.delete();
+ } catch (Exception e) {;}
+ if (con!=null)
+ theStorageObject.freeConnection(con,pstmt);
+ }
}
- super.setValues(theStringValues);
}
- public byte[] getIcon()
+ /**
+ * 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 InputStream getIcon() throws StorageObjectException
{
- Connection con=null;Statement stmt=null;
- byte[] img_data=null;
+ java.sql.Connection con=null;Statement stmt=null;
+ BlobInputStream in=null;ImageInputStream img_in=null;
try {
con = theStorageObject.getPooledCon();
con.setAutoCommit(false);
+ LargeObjectManager lom;
+ java.sql.Connection jCon;
stmt = con.createStatement();
- ResultSet rs = theStorageObject.executeSql(stmt,"select icon_data from images where id="+getId());
+ ResultSet rs = theStorageObject.executeSql(stmt,
+ "select icon_data from images where id="+getId());
+ jCon = ((com.codestudio.sql.PoolManConnectionHandle)con)
+ .getNativeConnection();
+ lom = ((org.postgresql.Connection)jCon).getLargeObjectAPI();
if(rs!=null) {
if (rs.next()) {
- img_data = rs.getBytes(1);
+ LargeObject lob = lom.open(rs.getInt(1));
+ in = (BlobInputStream)lob.getInputStream();
+ img_in = new ImageInputStream( in, con ,stmt);
+ //img_data = rs.getBytes(1);
}
- rs.close();
+ rs.close();
}
+ } catch (Exception e) {
+ e.printStackTrace();
+ theLog.printError("EntityImages -- getIcon failed"+e.toString());
+ try {
+ con.setAutoCommit(true);
+ } catch (Exception e2) {
+ e.printStackTrace();
+ theLog.printError(
+ "EntityImages -- getIcon reseting transaction mode failed"
+ +e2.toString());
+ }
+ theStorageObject.freeConnection(con,stmt);
+ throwStorageObjectException(e, "EntityImages -- getIcon failed:");
}
- catch (Exception e) {theLog.printDebugInfo("-- getIcon gescheitert: "+e.toString());}
- finally {
- try {con.setAutoCommit(true); } catch (Exception e) {;}
- theStorageObject.freeConnection(con,stmt); }
- return img_data;
+ return img_in;
}
- public void finalize() {
- instances--;
- super.finalize();
+ /**
+ * a small wrapper class that allows us to store the DB connection resources
+ * that the BlobInputStream is using and free them upon closing of the stream
+ */
+ private class ImageInputStream extends InputStream {
+
+ InputStream _in;
+ java.sql.Connection _con;
+ Statement _stmt;
+
+ public ImageInputStream(BlobInputStream in, java.sql.Connection con,
+ Statement stmt )
+ {
+ _in = in;
+ _con = con;
+ _stmt = stmt;
+ }
+
+ public void close () throws IOException {
+ _in.close();
+
+ try {
+ _con.setAutoCommit(true);
+ theStorageObject.freeConnection(_con,_stmt);
+ } catch (Exception e) {
+ throw new IOException("close(): "+e.toString());
+ }
+ }
+
+ public int read() throws IOException {
+ return _in.read();
+ }
+
}
}
projects / mir.git / blobdiff