/*
- * Copyright (C) 2001, 2002 The Mir-coders group
+ * Copyright (C) 2001, 2002 The Mir-coders group
*
* This file is part of Mir.
*
* 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.
+ * 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;
-import java.lang.*;
-import java.io.*;
-import java.util.*;
-import java.sql.*;
+import java.io.ByteArrayOutputStream;
+import java.io.InputStream;
+import java.sql.SQLException;
-/*
- * 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.*;
+import mir.log.LoggerWrapper;
+import mir.storage.StorageObject;
+import mir.storage.StorageObjectFailure;
+import mir.util.StreamCopier;
+import mircoders.media.ImageProcessor;
/**
- * Diese Klasse enthält die Daten eines MetaObjekts
*
- * @author RK, mh
- * @version $Id: EntityImages.java,v 1.9 2002/11/15 22:13:21 mh Exp $
+ * @author RK, mh, mir-coders
+ * @version $Id: EntityImages.java,v 1.21.2.5 2004/11/21 22:07:13 zapata Exp $
*/
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");
- Random r = new Random();
-
- public EntityImages()
- {
- super();
- }
-
- public EntityImages(StorageObject theStorage) {
- this();
- setStorage(theStorage);
- }
- //
- // methods
+ public EntityImages()
+ {
+ super();
+ logger = new LoggerWrapper("Entity.UploadedMedia.Images");
+ }
- public InputStream getImage() throws StorageObjectException
- {
- theLog.printDebugInfo("--getimage started");
- java.sql.Connection con=null;Statement stmt=null;
- BlobInputStream in; InputStream img_in = null;
+ public EntityImages(StorageObject theStorage) {
+ this();
+ setStorage(theStorage);
+ }
- try {
- con = theStorageObject.getPooledCon();
- con.setAutoCommit(false);
- 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()) {
- LargeObject lob = lom.open(rs.getInt(1));
- in = (BlobInputStream)lob.getInputStream();
- img_in = new ImageInputStream(in, con, stmt);
- }
- rs.close();
- }
- } 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: ");
+ /**
+ * Retrieves the image data
+ */
+ public InputStream getImage() throws StorageObjectFailure {
+ try {
+ return storageObject.getBinaryField("select image_data from images where id="+getId());
+ }
+ catch (SQLException e) {
+ throw new StorageObjectFailure(e);
}
+ }
- return img_in;
- }
+ /**
+ * Processes and saves image data
+ */
+ public void setImage(InputStream anInputStream, String type) throws StorageObjectFailure {
+ // todo: failures should be treated anInputStream a better way: exception -> rollback instead
+ // of commit
+ if (anInputStream != null) {
+ try {
+ ByteArrayOutputStream inputData = new ByteArrayOutputStream();
+ StreamCopier.copy(anInputStream, inputData);
- public void setImage(InputStream in, String type)
- throws StorageObjectException {
+ ImageProcessor processor = new ImageProcessor(inputData.toByteArray());
+ processor.descaleImage(maxImageSize, minDescaleRatio, minDescaleReduction);
- if (in!=null) {
- java.sql.Connection con=null;PreparedStatement pstmt=null;
- File f = null;
- try {
+ ByteArrayOutputStream imageData = new ByteArrayOutputStream();
+ processor.writeScaledData(imageData, type);
+ storageObject.setBinaryField("update images set image_data = ? where id = "+getId(), imageData.toByteArray());
- theLog.printDebugInfo("settimage :: making internal representation of image");
+ setFieldValue("img_height", new Integer(processor.getScaledHeight()).toString());
+ setFieldValue("img_width", new Integer(processor.getScaledWidth()).toString());
- String fName = MirConfig.getProp("TempDir")+File.separator+r.nextInt();
- f = new File(fName);
- FileUtil.write(f, in);
- WebdbImage webdbImage= new WebdbImage(f, type);
- theLog.printDebugInfo("settimage :: made internal representation of image");
+ imageData.reset();
+ processor.descaleImage(maxIconSize, minDescaleRatio, minDescaleReduction);
+ processor.writeScaledData(imageData, type);
+ storageObject.setBinaryField("update images set icon_data = ? where id = "+getId(), imageData.toByteArray());
- con = theStorageObject.getPooledCon();
- con.setAutoCommit(false);
- theLog.printDebugInfo("settimage :: trying to insert image");
+ setFieldValue("icon_height", new Integer(processor.getScaledHeight()).toString());
+ setFieldValue("icon_width", new Integer(processor.getScaledWidth()).toString());
- // 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();
- String sql = "update images set img_height='"
- +webdbImage.getImageHeight() +
- "',img_width='" + webdbImage.getImageWidth() +
- "',icon_height='" + webdbImage.getIconHeight() +
- "',icon_width='" + webdbImage.getIconWidth()
- + "', image_data="+oidImage+", icon_data="+oidIcon
- +" 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) {throwStorageObjectException(e, "settimage :: setImage gescheitert: ");}
- finally {
- try {
- if (con!=null)
- con.setAutoCommit(true);
- // get rid of the temp. file
- f.delete();
- } catch (Exception e) {;}
- theStorageObject.freeConnection(con,pstmt);
+ update();
}
- }
- }
-
- public void update() throws StorageObjectException {
- super.update();
- try {
- theStorageObject.executeUpdate("update content set is_produced='0' where to_media="+getId());
- } catch (SQLException e) {
- throwStorageObjectException(e, "EntityImages :: update :: failed!! ");
- }
- }
-
- public void setValues(HashMap theStringValues)
- {
- if (theStringValues != null) {
- if (!theStringValues.containsKey("is_published"))
- theStringValues.put("is_published","0");
- }
- super.setValues(theStringValues);
- }
+ catch (Exception e) {
+ throw new StorageObjectFailure(e);
+ }
+ }
+ }
/**
* Takes an OutputStream as an argument and reads in the data
*
* It will also take care of closing the OutputStream.
*/
- public InputStream getIcon() throws StorageObjectException
- {
- 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());
- jCon = ((com.codestudio.sql.PoolManConnectionHandle)con)
- .getNativeConnection();
- lom = ((org.postgresql.Connection)jCon).getLargeObjectAPI();
- if(rs!=null) {
- if (rs.next()) {
- 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();
- }
- } 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:");
- }
-
- return img_in;
- }
-
- /**
- * 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 InputStream getIcon() throws StorageObjectFailure {
+ try {
+ return storageObject.getBinaryField("select icon_data from images where id="+getId());
}
-
- public void close () throws IOException {
- _in.close();
-
- try {
- _con.setAutoCommit(true);
- theStorageObject.freeConnection(_con,_stmt);
- } catch (Exception e) {
- throw new IOException("close(): "+e.toString());
- }
+ catch (SQLException e) {
+ throw new StorageObjectFailure(e);
}
-
- public int read() throws IOException {
- return _in.read();
- }
-
}
-
}
projects / mir.git / blobdiff