www.pudn.com > code_source_compiere_erp_crm_logiciel_java.zip > MImage.java
/******************************************************************************
* The contents of this file are subject to the Compiere License Version 1.1
* ("License"); You may not use this file except in compliance with the License
* You may obtain a copy of the License at http://www.compiere.org/license.html
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License for
* the specific language governing rights and limitations under the License.
* The Original Code is Compiere ERP & CRM Business Solution
* The Initial Developer of the Original Code is Jorg Janke and ComPiere, Inc.
* Portions created by Jorg Janke are Copyright (C) 1999-2001 Jorg Janke, parts
* created by ComPiere are Copyright (C) ComPiere, Inc.; All Rights Reserved.
* Contributor(s): ______________________________________.
*****************************************************************************/
package org.compiere.model;
import java.awt.*;
import java.util.*;
import java.sql.*;
import java.io.*;
import javax.swing.*;
import org.compiere.util.*;
/**
* Image Model
* (DisplayType = 32)
*
* @author Jorg Janke
* @version $Id: MImage.java,v 1.7 2002/08/14 02:26:10 jjanke Exp $
*/
public class MImage extends PO
{
/**
* Constructor
* @param ctx context
* @param AD_Image_ID image
*/
public MImage(Properties ctx, int AD_Image_ID)
{
super (ctx, AD_Image_ID);
if (AD_Image_ID < 1)
setName("-/-");
} // MImage
/** The Image */
private ImageIcon m_image = null;
/** The Image File */
private File m_file = null;
/**
* Load
* @param ctx context
* @return POInfo PO Info
*/
protected POInfo initPO (Properties ctx)
{
int AD_Table_ID = 461;
return POInfo.getPOInfo (ctx, AD_Table_ID);
} // MImage
/**
* Get Name
* @return Name
*/
public String getName()
{
return (String)getValue("Name");
} // getName
/**
* Set Name
* @param newName name
*/
public void setName (String newName)
{
String fileName = newName;
if (fileName.length() > 60)
fileName = "..." + fileName.substring(fileName.length()-60+3);
setValue("Name", fileName);
} // setName
/**
* Set ImageURL
* @param newURL url
*/
public void setImageURL (String newURL)
{
String url = newURL;
if (url.length() > 256)
url = "..." + url.substring(url.length()-256+3);
setValue("ImageURL", url);
} // setImageURL
/**
* Get Image
* @return Image
*/
public ImageIcon getImage()
{
return m_image;
} // getImage
/**
* String Representation
* @return String
*/
public String toString()
{
return "MImage[ID=" + getID() + ",Name=" + getName() + "]";
} // toString
/**
* Load Special data (images, ..).
* To be extended by sub-classes
* @param rs result set
* @param index zero based index
* @return value
* @throws SQLException
*/
protected Object loadSpecial (ResultSet rs, int index) throws SQLException
{
Log.trace(Log.l4_Data, "MImage.loadSpecial", p_info.getColumnName(index));
// BLOB
int length = 0;
try
{
Blob blob = rs.getBlob(index);
length = (int)blob.length();
if (length > 0)
{
byte[] data = blob.getBytes(1, length);
// Image image = Toolkit.getDefaultToolkit().createImage(data);
m_image = new ImageIcon(data);
if (m_image == null)
Log.error("MImage.loadSpecial - Image not created - BLOB length = " + length);
else
Log.trace(Log.l6_Database, "Image loaded", "BLOB length = " + length
+ ", h=" + m_image.getIconHeight() + ", w=" + m_image.getIconWidth());
}
else
Log.trace(Log.l6_Database, "BLOB not Loaded - length=" + length);
}
catch (SQLException e)
{
Log.error("MImage.loadSpecial - BLOB length = " + length, e);
}
catch (Exception e1)
{
Log.error("MImage.loadSpecial - BLOB length = " + length, e1);
}
return m_image;
} // loadSpecial
/**
* Save Special Data
* @param value value
* @param index index
* @return SQL code for INSERT VALUES clause
*/
protected String saveNewSpecial (Object value, int index)
{
Log.trace(Log.l5_DData, "MImage.saveNewSpecial", p_info.getColumnName(index));
return "Empty_BLOB()";
} // saveNewSpecial
/**
* Set Image file to load; Set before saving
* @param imageFile file
*/
public void setImageFile (File imageFile)
{
if (imageFile != null && (imageFile.isDirectory() || !imageFile.exists()))
throw new IllegalArgumentException ("MImage.setImageFile - Invalid File " + imageFile.toString());
m_file = imageFile;
} // setImageFile
/**
* Save only when a imageFile is set
* @return true if saved
*/
public boolean save()
{
if (m_file != null)
return super.save();
return true;
} // save
/**
* Save new or update complete.
* Save Image from file.
* @param newRecord new record
* @param success success
* @return true if saved
*/
protected boolean saveComplete (boolean newRecord, boolean success)
{
// do nothing if previous command failed or no image file there
if (!success || m_file == null)
return success;
Log.trace(Log.l4_Data, "MImage.saveComplete - Save Image to BLOB", "Success=" + success);
String sql = "SELECT BinaryData FROM AD_Image WHERE AD_Image_ID=? FOR UPDATE";
try
{
Connection con = DB.createConnection(false, Connection.TRANSACTION_SERIALIZABLE);
PreparedStatement pstmt = con.prepareStatement(sql, ResultSet.TYPE_SCROLL_SENSITIVE, ResultSet.CONCUR_UPDATABLE);
pstmt.setInt(1, getID());
ResultSet rs = pstmt.executeQuery();
if (rs.next())
{
Blob blob = rs.getBlob(1);
long blobLength = blob.length();
Log.trace(Log.l5_DData, "MImage.saveComplete blob - "
+ m_file.getAbsolutePath() + ", Size=" + m_file.length()
+ ", BLOB length=" + blobLength);
try
{
FileInputStream fis = new FileInputStream (m_file);
byte[] buffer = new byte[1024]; // 1k Buffer
int length = -1;
long pos = 1l;
while ((length = fis.read(buffer)) != -1)
{
int written = blob.setBytes(pos, buffer);
pos += written;
}
fis.close();
Log.trace(Log.l6_Database, "New length=" + blob.length());
}
catch (IOException ioe)
{
Log.error("MImage.saveComplete (blob-io)", ioe);
success = false;
}
}
else
{
Log.error("MImage.saveComplete - No Record for BLOB");
success = false;
}
rs.close();
pstmt.close();
con.close();
}
catch (SQLException e)
{
Log.error("MImage.saveComplete", e);
success = false;
}
return success;
} // saveComplete
} // MImage