CMP Connection Reset Failure Creating BLOB in ORACLE 9i DB
Hello All.
I have JBOSS 4.0.0 and a CMP Entity Bean called Image. The bean has a field called content, which I have defined as byte[].
I load my image via a URL and encode it in Base64:
URL imageUrl = new URL( "http://...." );
URLConnection imageConnection = imageUrl.openConnection();
InputStream imageStream = imageConnection.getInputStream();
int fileLength = imageConnection.getContentLength();
ByteArrayOutputStream encodedImage = new ByteArrayOutputStream( fileLength );
Base64.OutputStream encodeStream = new Base64.OutputStream( encodedImage );
int totalRead = 0;
int bytesRead = 0;
byte buffer[] = new byte[fileLength];
while( (totalRead < fileLength) && (bytesRead != -1) ) {
bytesRead = imageStream.read( buffer, totalRead, fileLength - totalRead );
if ( bytesRead != -1 ) totalRead += bytesRead;
}
encodeStream.write( buffer );
dsImage.setContent( encodedImage.toByteArray() );
The standardjbosscmp-jdbc.xml is set up thus for Oracle9i:
<mapping> <java-type>java.lang.Object</java-type> <jdbc-type>BLOB</jdbc-type> <sql-type>BLOB</sql-type> <!-- | Change this from BLOB to RAW(n) if you know your | serialized object will be <= n bytes and n <= 2000 --> </mapping>
The database table has CONTENT set up with type BLOB:
CREATE TABLE IMAGE ( IMAGE_ID NUMBER(10) NOT NULL, IMAGE_CATEGORY_ID NUMBER(10) NOT NULL, MIME_TYPE_ID NUMBER(10) NOT NULL, NAME VARCHAR2(50) NOT NULL, DESCRIPTION VARCHAR2(200), HEIGHT_IN_PIXELS NUMBER(5) NOT NULL, WIDTH_IN_PIXELS NUMBER(5) NOT NULL, SIZE_IN_BYTES NUMBER(10) NOT NULL, CONTENT BLOB NOT NULL, CREATED_DATE DATE DEFAULT SYSDATE NOT NULL, CREATED_USER VARCHAR2(50) DEFAULT USER NOT NULL, MODIFIED_DATE DATE DEFAULT NULL, MODIFIED_USER VARCHAR2(50) DEFAULT NULL, DELETED_USER VARCHAR2(50) DEFAULT NULL, DELETED_DATE DATE DEFAULT NULL, CONSTRAINT PK_IMAGE PRIMARY KEY ( IMAGE_ID ) );
When I attempt to create the Entity, JBOSS Errors:
12:05:58,982 ERROR [Image] Could not create entity java.sql.SQLException: Io exception: Connection reset at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:134) at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:179) at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:334) at oracle.jdbc.driver.OracleStatement.executeNonQuery(OracleStatement.java:2150) at oracle.jdbc.driver.OracleStatement.doExecuteOther(OracleStatement.java:2015) at oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout(OracleStatement.java:2877) at oracle.jdbc.driver.OraclePreparedStatement.executeUpdate(OraclePreparedStatement.java:608) at org.jboss.resource.adapter.jdbc.WrappedPreparedStatement.executeUpdate(WrappedPreparedStatement.java:316) at org.jboss.ejb.plugins.cmp.jdbc.JDBCAbstractCreateCommand.executeInsert(JDBCAbstractCreateCommand.java:328) at org.jboss.ejb.plugins.cmp.jdbc.JDBCAbstractCreateCommand.performInsert(JDBCAbstractCreateCommand.java:286) at org.jboss.ejb.plugins.cmp.jdbc.JDBCAbstractCreateCommand.execute(JDBCAbstractCreateCommand.java:137) at org.jboss.ejb.plugins.cmp.jdbc.JDBCStoreManager.createEntity(JDBCStoreManager.java:572) at org.jboss.ejb.plugins.CMPPersistenceManager.createEntity(CMPPersistenceManager.java:222) . . .
The program client outputs:
java.rmi.UnmarshalException: Error unmarshaling return; nested exception is: java.lang.ClassNotFoundException: org.jboss.resource.connectionmanager.JBossLocalXAException (no security manager: RMI class loader disabled) at sun.rmi.transport.StreamRemoteCall.executeCall(StreamRemoteCall.java:217) at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:133) at org.jboss.invocation.jrmp.server.JRMPInvoker_Stub.invoke(Unknown Source) at org.jboss.invocation.jrmp.interfaces.JRMPInvokerProxy.invoke(JRMPInvokerProxy.java:118) at org.jboss.invocation.InvokerInterceptor.invoke(InvokerInterceptor.java:96) at org.jboss.proxy.TransactionInterceptor.invoke(TransactionInterceptor.java:46) at org.jboss.proxy.SecurityInterceptor.invoke(SecurityInterceptor.java:55) at org.jboss.proxy.ejb.StatelessSessionInterceptor.invoke(StatelessSessionInterceptor.java:97) at org.jboss.proxy.ClientContainer.invoke(ClientContainer.java:86) . . .
I have based my work on http://www.theserverside.com/blogs/showblog.tss?id=UsingBLOBDataType.
Have I missed something? Could there be a problem with JBOSS or with the Oracle JDBC?
Any help greatly appreciated. I would like to stay with CMP for this as the images are no bigger than 30k and everyone here prefers CMP (including myself).
Thanks in advance.
Matt.