Reading InputStream - ExtendedIOException

[Jennifer Sohl]

Hi there. I have some data stored in a DB2 database as a BLOB data type. I am retrieving this data from the database and putting it into an ArrayList as an InputStream object.

I then loop through the ArrayList of InputStream objects to output the images to a JTextPane.
This is the code I am using to insert the images:

public void insertAttachments(String fileType,int counter,InputStream imageIS) {
		try {
			
			fileName.replace(0,fileName.length(),"temp" + counter + "." + fileType);
			// Create directory if it doesn't exist.
			String newDir = "C:/documents and Settings/" + ApplicationConstants.pcUser + "/ClientVis Attachments";
			boolean success = (new File(newDir)).mkdir();
			File image = new File(new File(newDir),fileName.toString());
	        FileOutputStream fos = new FileOutputStream(image); 
	        byte[] buffer = new byte[1]; 
	        //
	        // Get the binary stream of our BLOB data
	        //
	        BufferedInputStream is = new BufferedInputStream(imageIS);
	        while (is.read(buffer) > 0) {
	            fos.write(buffer);                	                    
	        }                
	        fileNames.add(image);
	        Icon icon = view.getSystemIcon(image);
			SKPictureButton spb = new SKPictureButton(icon,image.getName());
			buttons.add(spb);
			spb.addActionListener(this);			
	        attachments.insertComponent(spb);
	        attachments.insertComponent(new JLabel(fileName + "; "));
	        fos.close();
		}
		catch(Exception sqle) {
			this.setCursor(Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR));
			GUIUtil.showError(sqle,sqle.toString(),AttachPanel.APP_NAME,AttachPanel.this);
		}		
	}    

However when it tries to execute the "while (is.read(buffer) > 0)"
it returns the following exception:

com.ibm.as400.access.ExtendedIOException: Resource not available.
at com.ibm.as400.access.AS400JDBCInputStream.read(AS400JDBCInputStream.java:201)
at java.io.BufferedInputStream.fill(Unknown Source)
at java.io.BufferedInputStream.read1(Unknown Source)
at java.io.BufferedInputStream.read(Unknown Source)
at java.io.FilterInputStream.read(Unknown Source)

I can't seem to figure out exactly what is the issue here? Any ideas?
Thanks for any help!

[Samuel March]

byte[] buffer = new byte[1];
BufferedInputStream is = new BufferedInputStream(imageIS);

To start, you only nominated 1 byte worth to have on the array, images are generally composed of more than one byte.

Look at the API docs for the construction call for BufferedInputStream , because for what your doing
my memory is there is a declaration system for what your trying to do thatgose more like this

byte[] buffer; // is declared as nominated for the BufferedInputStream
streambuffer = new BufferedInputStream(buffer);
while(streambuffer.read(A BYTE)).....

[Samuel March]

From much wondering exactly how those streams logically come about! , here is something to look through.

//public void insertAttachments(String fileType,int counter,InputStream imageIS,File imageNAME_IS) { 


public void insertAttachments(String fileType,int counter,InputStream imageIS) { 

//byte[] buffer = new byte[((int)imageNAME_IS.length())]; 
boolean success = false;
File mkd = new File(newDir);
try{


if((mkd.mkdir()) && (mkd.exists()==false)){   

File image = new File(new File(newDir),fileName.toString());

}else{
// DO SOMETHING HERE FOR FAILURE
}
}catch(SecurityException fsnd){
((Throwable)fsnd).printStackTrace();
}finaly{}
//   
// Get the binary stream of our BLOB data   
// 
try{  
//BufferedInputStream is = new BufferedInputStream(new FileInputStream(imageNAME_IS));
FileOutputStream fos = new FileOutputStream(image); 
BufferedInputStream is = new BufferedInputStream(imageIS);
byte bit;
int ibit;
// update 3 Whoopsie got that back to front
while((ibit=is.read())!=-1){ // -1 EOF
fos.write(((byte)new Integer(ibit).byteValue()));
}//enwhl

//is.read(buffer,0,((int)imageNAME_IS.length()));
//fos.write(buffer,0,((int)imageNAME_IS.length())); 

/*

.....................

*/

fos.close();
}catch(IOException ino){
((Throwable)ino).printStackTrace();
}finally{}

[Fatih Keles]

Jennifer Sohl wrote:Hi there. I have some data stored in a DB2 database as a BLOB data type. I am retrieving this data from the database and putting it into an ArrayList as an InputStream object.

I then loop through the ArrayList of InputStream objects to output the images to a JTextPane.
This is the code I am using to insert the images:

public void insertAttachments(String fileType,int counter,InputStream imageIS) {
//...

However when it tries to execute the "while (is.read(buffer) > 0)"
it returns the following exception:

com.ibm.as400.access.ExtendedIOException: Resource not available.
at com.ibm.as400.access.AS400JDBCInputStream.read(AS400JDBCInputStream.java:201)
at java.io.BufferedInputStream.fill(Unknown Source)
at java.io.BufferedInputStream.read1(Unknown Source)
at java.io.BufferedInputStream.read(Unknown Source)
at java.io.FilterInputStream.read(Unknown Source)

InputStream imageIS is not available. Either the driver version you are using could not return an input stream for your BLOB data or the stream is closed before it reaches your method may be because you close your database connection.