+/*
+ * 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.io.*;
-import java.util.*;
-import java.sql.*;
+import java.io.File;
+import java.io.IOException;
+import java.io.InputStream;
+import java.sql.Connection;
+import java.sql.PreparedStatement;
+import java.sql.ResultSet;
+import java.sql.SQLException;
+import java.sql.Statement;
-/*
- * 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 mir.config.MirPropertiesConfiguration;
+import mir.log.LoggerWrapper;
+import mir.misc.FileUtil;
+import mir.misc.WebdbImage;
+import mir.storage.StorageObject;
+import mir.storage.StorageObjectFailure;
+
+import org.postgresql.largeobject.BlobInputStream;
import org.postgresql.largeobject.LargeObject;
import org.postgresql.largeobject.LargeObjectManager;
-import mir.entity.*;
-import mir.misc.*;
-import mir.storage.*;
-
/**
- * Diese Klasse enthรคlt die Daten eines MetaObjekts
+ * Diese Klasse enth?lt die Daten eines MetaObjekts
*
- * @author RK
- * @version 11.11.2000
+ * @author RK, mh, mir-coders
+ * @version $Id: EntityImages.java,v 1.19 2003/03/08 17:18:19 idfx Exp $
*/
public class EntityImages extends EntityUploadedMedia
{
- public EntityImages()
- {
- super();
- }
-
- public EntityImages(StorageObject theStorage) {
- this();
- setStorage(theStorage);
- }
-
- //
- // methods
-
-
-
- public byte[] getImage() throws StorageObjectException
- {
- theLog.printDebugInfo("--getimage started");
- java.sql.Connection con=null;Statement stmt=null;
- byte[] img_data=null;
-
- 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));
- img_data = lob.read(lob.size());
- lob.close();
- //img_data = rs.getBytes(1);
- }
- rs.close();
- }
- } catch (Exception e) {
- e.printStackTrace();
- theLog.printError("EntityImages -- getImage failed"+e.toString());
- throwStorageObjectException(e, "EntityImages -- getImage failed: ");
+
+ public EntityImages()
+ {
+ super();
+
+ logger = new LoggerWrapper("Entity.UploadedMedia.Images");
+ }
+
+ public EntityImages(StorageObject theStorage) {
+ this();
+ setStorage(theStorage);
+ }
+
+ //
+ // methods
+
+
+ public InputStream getImage() throws StorageObjectFailure {
+ logger.debug("EntityImages.getimage started");
+ java.sql.Connection con=null;
+ Statement stmt=null;
+ BlobInputStream in;
+ InputStream 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 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);
}
- finally {
- try {
+ rs.close();
+ }
+ }
+ catch (Throwable t) {
+ logger.error("EntityImages.getImage failed: " + t.toString());
+ t.printStackTrace(logger.asPrintWriter(LoggerWrapper.DEBUG_MESSAGE));
+
+ try {
+ con.setAutoCommit(true);
+ }
+ catch (Throwable e) {
+ logger.error("EntityImages.getImage resetting transaction mode failed: " + e.toString());
+ e.printStackTrace(logger.asPrintWriter(LoggerWrapper.DEBUG_MESSAGE));
+ }
+
+ try {
+ theStorageObject.freeConnection(con, stmt);
+ }
+ catch (Throwable e) {
+ logger.error("EntityImages.getImage freeing connection failed: " +e.toString());
+ }
+
+ throwStorageObjectFailure(t, "EntityImages -- getImage failed: ");
+ }
+ return img_in;
+ }
+
+ public void setImage(InputStream in, String type)
+ throws StorageObjectFailure {
+
+ if (in != null) {
+ Connection con = null;
+ PreparedStatement pstmt = null;
+ File f = null;
+ try {
+ logger.debug("EntityImages.settimage :: making internal representation of image");
+
+ File tempDir = new File(MirPropertiesConfiguration.instance().getString("TempDir"));
+ f = File.createTempFile("mir", ".tmp", tempDir);
+ FileUtil.write(f, in);
+ WebdbImage webdbImage= new WebdbImage(f, type);
+ logger.debug("EntityImages.settimage :: made internal representation of image");
+
+ con = theStorageObject.getPooledCon();
+ con.setAutoCommit(false);
+ logger.debug("EntityImages.settimage :: trying to insert image");
+
+ // 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) {
+ throwStorageObjectFailure(e, "settimage :: setImage gescheitert: ");
+ } finally {
+ try {
+ if (con!=null)
con.setAutoCommit(true);
- } catch (Exception e) {
- e.printStackTrace();
- theLog.printError(
- "EntityImages -- getImage reseting transaction mode failed"
- +e.toString());
- }
- theStorageObject.freeConnection(con,stmt);
+ // get rid of the temp. file
+ f.delete();
+ } catch (SQLException e) {
+ throwStorageObjectFailure(e,"Resetting transaction-mode failed");
}
+ if (con!=null)
+ theStorageObject.freeConnection(con,pstmt);
+ }
+ }
+ }
- return img_data;
- }
-
- public void setImage(byte[] uploadData, String type)
- throws StorageObjectException {
-
- if (uploadData!=null) {
- java.sql.Connection con=null;PreparedStatement pstmt=null;
- try {
-
- theLog.printDebugInfo("settimage :: making internal representation of image");
- WebdbImage webdbImage= new WebdbImage(uploadData, 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
- 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);
- lobImage.write(imageData);
- lobIcon.write(iconData);
- 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); } 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) {
- 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);
- }
-
- public byte[] getIcon() throws StorageObjectException
- {
- java.sql.Connection con=null;Statement stmt=null;
- byte[] img_data=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));
- img_data = lob.read(lob.size());
- lob.close();
- //img_data = rs.getBytes(1);
- }
- rs.close();
- }
- } catch (Exception e) {
- e.printStackTrace();
- theLog.printError("EntityImages -- getIcon failed"+e.toString());
- throwStorageObjectException(e, "EntityImages -- getIcon failed:");
- } finally {
- try {
- con.setAutoCommit(true);
- } catch (Exception e) {
- e.printStackTrace();
- theLog.printError(
- "EntityImages -- getIcon reseting transaction mode failed"
- +e.toString());
- }
- theStorageObject.freeConnection(con,stmt);
- }
-
- return img_data;
- }
+ /**
+ * 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 StorageObjectFailure {
+ 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 (Throwable t) {
+ logger.error("EntityImages.getIcon failed: "+t.toString());
+ t.printStackTrace(logger.asPrintWriter(LoggerWrapper.DEBUG_MESSAGE));
+
+ try {
+ con.setAutoCommit(true);
+ }
+ catch (SQLException e) {
+ logger.error("EntityImages.getIcon resetting transaction mode failed: " + e.toString());
+ e.printStackTrace(logger.asPrintWriter(LoggerWrapper.DEBUG_MESSAGE));
+ }
+ try {
+ theStorageObject.freeConnection(con, stmt);
+ }
+ catch (Throwable e) {
+ logger.error("EntityImages -- freeing connection failed: " + e.getMessage());
+ }
+
+ throwStorageObjectFailure(t, "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;
+ Connection _con;
+ Statement _stmt;
+
+ public ImageInputStream(BlobInputStream in, 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