X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;ds=inline;f=source%2Fmircoders%2Fentity%2FEntityImages.java;h=7221e9b902f6389db91b64c3ed31fd062501dc91;hb=259a8dadb6be28e48c7ffbd15de888eab066064c;hp=21c2c75aa4ff113bb778b7ec753055a540b0d14f;hpb=7fac0ba44e0920e847b453f597ffff280247fdeb;p=mir.git diff --git a/source/mircoders/entity/EntityImages.java b/source/mircoders/entity/EntityImages.java index 21c2c75a..7221e9b9 100755 --- a/source/mircoders/entity/EntityImages.java +++ b/source/mircoders/entity/EntityImages.java @@ -1,271 +1,125 @@ -/* - * 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.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; - -import org.postgresql.largeobject.BlobInputStream; -import org.postgresql.largeobject.LargeObject; -import org.postgresql.largeobject.LargeObjectManager; - -import mir.config.MirPropertiesConfiguration; -import mir.misc.FileUtil; -import mir.misc.WebdbImage; -import mir.log.LoggerWrapper; -import mir.storage.StorageObject; -import mir.storage.StorageObjectFailure; - -/** - * Diese Klasse enth?lt die Daten eines MetaObjekts - * - * @author RK, mh, mir-coders - * @version $Id: EntityImages.java,v 1.17 2003/03/05 19:16:50 idfx Exp $ - */ - - -public class EntityImages extends EntityUploadedMedia -{ - - 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); - } - rs.close(); - } - } catch (SQLException e) { - logger.error("EntityImages.getImage failed: " + e.toString()); - e.printStackTrace(logger.asPrintWriter(LoggerWrapper.DEBUG_MESSAGE)); - throwStorageObjectFailure(e, "EntityImages -- getImage failed: "); - } finally { - try { - con.setAutoCommit(true); - } catch (SQLException e) { - logger.error("EntityImages.getIcon resetting transaction mode failed: " + e.toString()); - e.printStackTrace(logger.asPrintWriter(LoggerWrapper.DEBUG_MESSAGE)); - throwStorageObjectFailure(e, "EntityImages -- resetting transaction mode failed:"); - } - try { - theStorageObject.freeConnection(con, stmt); - } catch (Throwable e) { - throwStorageObjectFailure(e, "EntityImages -- freeing connection 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); - // get rid of the temp. file - f.delete(); - } catch (SQLException e) { - throwStorageObjectFailure(e,"Resetting transaction-mode failed"); - } - if (con!=null) - theStorageObject.freeConnection(con,pstmt); - } - } - } - - /** - * 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 (SQLException e) { - logger.error("EntityImages.getIcon failed: "+e.toString()); - e.printStackTrace(logger.asPrintWriter(LoggerWrapper.DEBUG_MESSAGE)); - throwStorageObjectFailure(e, "EntityImages -- getIcon failed:"); - } finally { - try { - con.setAutoCommit(true); - } catch (SQLException e) { - logger.error("EntityImages.getIcon resetting transaction mode failed: " + e.toString()); - e.printStackTrace(logger.asPrintWriter(LoggerWrapper.DEBUG_MESSAGE)); - throwStorageObjectFailure(e, "EntityImages -- resetting transaction mode failed:"); - } - try { - theStorageObject.freeConnection(con, stmt); - } catch (Throwable e) { - throwStorageObjectFailure(e, "EntityImages -- freeing connection 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(); - } - } -} +/* + * 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 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 mir.log.LoggerWrapper; +import mir.storage.StorageObjectFailure; +import mir.util.StreamCopier; +import mircoders.media.ImageProcessor; + +import java.io.ByteArrayOutputStream; +import java.io.InputStream; +import java.sql.SQLException; + +/** + * + * @author RK, mh, mir-coders + * @version $Id: EntityImages.java,v 1.21.2.7 2005/01/23 15:36:04 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"); + + + public EntityImages() + { + super(); + + logger = new LoggerWrapper("Entity.UploadedMedia.Images"); + } + + /** + * Retrieves the image data + */ + public InputStream getImage() throws StorageObjectFailure { + try { + return database.getBinaryField("select image_data from images where id="+getId()); + } + catch (SQLException e) { + throw new StorageObjectFailure(e); + } + } + + /** + * Processes and saves image data + */ + public void setImage(InputStream anInputStream, String type) throws StorageObjectFailure { + if (anInputStream != null) { + try { + ByteArrayOutputStream inputData = new ByteArrayOutputStream(); + StreamCopier.copy(anInputStream, inputData); + + ImageProcessor processor = new ImageProcessor(inputData.toByteArray()); + processor.descaleImage(maxImageSize, minDescaleRatio, minDescaleReduction); + + ByteArrayOutputStream imageData = new ByteArrayOutputStream(); + processor.writeScaledData(imageData, type); + database.setBinaryField("image_data", getId(), imageData.toByteArray()); + + setFieldValue("img_height", new Integer(processor.getScaledHeight()).toString()); + setFieldValue("img_width", new Integer(processor.getScaledWidth()).toString()); + + imageData.reset(); + processor.descaleImage(maxIconSize, minDescaleRatio, minDescaleReduction); + processor.writeScaledData(imageData, type); + database.setBinaryField("icon_data", getId(), imageData.toByteArray()); + + setFieldValue("icon_height", new Integer(processor.getScaledHeight()).toString()); + setFieldValue("icon_width", new Integer(processor.getScaledWidth()).toString()); + + update(); + } + catch (Exception e) { + throw new StorageObjectFailure(e); + } + } + } + + /** + * 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 { + try { + return database.getBinaryField("select icon_data from images where id="+getId()); + } + catch (SQLException e) { + throw new StorageObjectFailure(e); + } + } +}