Examples with XdrOutputStream org.firebirdsql.gds.impl.wire.XdrOutputStream used on opensource projects

Example 36 with XdrOutputStream

use of org.firebirdsql.gds.impl.wire.XdrOutputStream in project jaybird by FirebirdSQL.

the class V10Statement method sendExecute.

/**
 * Sends the execute (for <code>op_execute</code> or <code>op_execute2</code>) to the database.
 *
 * @param operation
 *         Operation (<code>op_execute</code> or <code>op_execute2</code>)
 * @param parameters
 *         Parameters
 * @throws IOException
 * @throws SQLException
 */
protected void sendExecute(final int operation, final RowValue parameters) throws IOException, SQLException {
    assert operation == WireProtocolConstants.op_execute || operation == WireProtocolConstants.op_execute2 : "Needs to be called with operation op_execute or op_execute2";
    final XdrOutputStream xdrOut = getXdrOut();
    xdrOut.writeInt(operation);
    xdrOut.writeInt(getHandle());
    xdrOut.writeInt(getTransaction().getHandle());
    if (parameters != null && parameters.getCount() > 0) {
        final RowDescriptor parameterDescriptor = getParameterDescriptor();
        xdrOut.writeBuffer(calculateBlr(parameterDescriptor, parameters));
        // message number = in_message_type
        xdrOut.writeInt(0);
        // Number of messages
        xdrOut.writeInt(1);
        writeSqlData(parameterDescriptor, parameters);
    } else {
        xdrOut.writeBuffer(null);
        // message number = in_message_type
        xdrOut.writeInt(0);
        // Number of messages
        xdrOut.writeInt(0);
    }
    if (operation == WireProtocolConstants.op_execute2) {
        final RowDescriptor fieldDescriptor = getFieldDescriptor();
        xdrOut.writeBuffer(fieldDescriptor != null && fieldDescriptor.getCount() > 0 ? calculateBlr(fieldDescriptor) : null);
        // out_message_number = out_message_type
        xdrOut.writeInt(0);
    }
}

Example 37 with XdrOutputStream

use of org.firebirdsql.gds.impl.wire.XdrOutputStream in project jaybird by FirebirdSQL.

the class V10Statement method setCursorName.

public void setCursorName(String cursorName) throws SQLException {
    try {
        synchronized (getSynchronizationObject()) {
            checkStatementValid();
            try {
                final XdrOutputStream xdrOut = getXdrOut();
                xdrOut.writeInt(WireProtocolConstants.op_set_cursor);
                xdrOut.writeInt(getHandle());
                // Null termination is needed due to a quirk of the protocol
                xdrOut.writeString(cursorName + '\0', getDatabase().getEncoding());
                // Cursor type
                xdrOut.writeInt(0);
                xdrOut.flush();
            } catch (IOException ex) {
                switchState(StatementState.ERROR);
                throw new FbExceptionBuilder().exception(ISCConstants.isc_net_write_err).cause(ex).toSQLException();
            }
            try {
                // TODO Do we need to do anything else with this response?
                getDatabase().readGenericResponse(getStatementWarningCallback());
            } catch (IOException ex) {
                switchState(StatementState.ERROR);
                throw new FbExceptionBuilder().exception(ISCConstants.isc_net_read_err).cause(ex).toSQLException();
            }
        }
    } catch (SQLException e) {
        exceptionListenerDispatcher.errorOccurred(e);
        throw e;
    }
}

Example 38 with XdrOutputStream

use of org.firebirdsql.gds.impl.wire.XdrOutputStream in project jaybird by FirebirdSQL.

the class V10Transaction method getTransactionInfo.

@Override
public byte[] getTransactionInfo(byte[] requestItems, int maxBufferLength) throws SQLException {
    try {
        synchronized (getSynchronizationObject()) {
            try {
                final XdrOutputStream xdrOut = getXdrOut();
                xdrOut.writeInt(op_info_transaction);
                xdrOut.writeInt(getHandle());
                // incarnation(?)
                xdrOut.writeInt(0);
                xdrOut.writeBuffer(requestItems);
                xdrOut.writeInt(maxBufferLength);
                xdrOut.flush();
            } catch (IOException ioex) {
                throw new FbExceptionBuilder().exception(ISCConstants.isc_net_write_err).cause(ioex).toSQLException();
            }
            try {
                final GenericResponse genericResponse = getDatabase().readGenericResponse(null);
                return genericResponse.getData();
            } catch (IOException ex) {
                throw new FbExceptionBuilder().exception(ISCConstants.isc_net_read_err).cause(ex).toSQLException();
            }
        }
    } catch (SQLException e) {
        exceptionListenerDispatcher.errorOccurred(e);
        throw e;
    }
}

Example 39 with XdrOutputStream

use of org.firebirdsql.gds.impl.wire.XdrOutputStream in project jaybird by FirebirdSQL.

the class V10Transaction method prepare.

@Override
public void prepare(byte[] recoveryInformation) throws SQLException {
    try {
        synchronized (getSynchronizationObject()) {
            switchState(TransactionState.PREPARING);
            try {
                final XdrOutputStream xdrOut = getXdrOut();
                if (recoveryInformation != null) {
                    xdrOut.writeInt(op_prepare2);
                    xdrOut.writeInt(handle);
                    xdrOut.writeBuffer(recoveryInformation);
                } else {
                    xdrOut.writeInt(op_prepare);
                    xdrOut.writeInt(handle);
                }
                xdrOut.flush();
            } catch (IOException ioex) {
                throw new FbExceptionBuilder().exception(ISCConstants.isc_net_write_err).cause(ioex).toSQLException();
            }
            try {
                getDatabase().readResponse(null);
            } catch (IOException ioex) {
                throw new FbExceptionBuilder().exception(ISCConstants.isc_net_read_err).cause(ioex).toSQLException();
            }
            switchState(TransactionState.PREPARED);
        }
    } catch (SQLException e) {
        exceptionListenerDispatcher.errorOccurred(e);
        throw e;
    } finally {
        if (getState() != TransactionState.PREPARED) {
            log.warn("Prepare not completed", new RuntimeException("Prepare not completed"));
        }
    }
}

Example 40 with XdrOutputStream

use of org.firebirdsql.gds.impl.wire.XdrOutputStream in project jaybird by FirebirdSQL.

the class TestV10EventHandling method checkAsynchronousDisconnection.

private void checkAsynchronousDisconnection(int disconnectOperation) throws Exception {
    try (SimpleServer simpleServer = new SimpleServer()) {
        final FbWireAsynchronousChannel channel = new V10AsynchronousChannel(createDummyDatabase());
        Thread establishChannel = new Thread(new Runnable() {

            @Override
            public void run() {
                try {
                    channel.connect("localhost", simpleServer.getPort(), 1);
                } catch (SQLException e) {
                // suppress
                }
            }
        });
        establishChannel.start();
        simpleServer.acceptConnection();
        AsynchronousProcessor.getInstance().registerAsynchronousChannel(channel);
        establishChannel.join(500);
        assertTrue("Expected connected channel", channel.isConnected());
        final XdrOutputStream out = new XdrOutputStream(simpleServer.getOutputStream());
        out.writeInt(disconnectOperation);
        out.flush();
        Thread.sleep(500);
        assertFalse("Expected disconnected channel", channel.isConnected());
    }
}