List of usage examples for javax.jms MessageEOFException MessageEOFException
public MessageEOFException(String reason)
From source file:org.skyscreamer.nevado.jms.message.NevadoStreamMessage.java
/** * Reads a <code>double</code> from the stream message. * * @return a <code>double</code> value from the stream message * @throws JMSException/* www .j a v a 2 s.c o m*/ * if the JMS provider fails to read the message due to some * internal error. * @throws MessageEOFException * if unexpected end of message stream has been reached. * @throws MessageFormatException * if this type conversion is invalid. * @throws MessageNotReadableException * if the message is in write-only mode. */ public double readDouble() throws JMSException { initializeReading(); try { this.dataIn.mark(65); int type = this.dataIn.read(); if (type == -1) { throw new MessageEOFException("reached end of data"); } if (type == MarshallingSupport.DOUBLE_TYPE) { return this.dataIn.readDouble(); } if (type == MarshallingSupport.FLOAT_TYPE) { return this.dataIn.readFloat(); } if (type == MarshallingSupport.STRING_TYPE) { return Double.valueOf(this.dataIn.readUTF()).doubleValue(); } if (type == MarshallingSupport.NULL) { this.dataIn.reset(); throw new NullPointerException("Cannot convert NULL value to double."); } else { this.dataIn.reset(); throw new MessageFormatException(" not a double type"); } } catch (NumberFormatException mfe) { try { this.dataIn.reset(); } catch (IOException ioe) { JMSException jmsEx = new MessageFormatException(ioe.getMessage()); jmsEx.setLinkedException(ioe); throw jmsEx; } throw mfe; } catch (EOFException e) { String exMessage = "Reached premature EOF: " + e.getMessage(); _log.error(exMessage, e); throw new JMSException(exMessage); } catch (IOException e) { String exMessage = "Could not read boolean: " + e.getMessage(); _log.error(exMessage, e); throw new JMSException(exMessage); } }
From source file:org.skyscreamer.nevado.jms.message.NevadoStreamMessage.java
/** * Reads a <CODE>String</CODE> from the stream message. * * @return a Unicode string from the stream message * @throws JMSException/*w w w.java2s. co m*/ * if the JMS provider fails to read the message due to some * internal error. * @throws MessageEOFException * if unexpected end of message stream has been reached. * @throws MessageFormatException * if this type conversion is invalid. * @throws MessageNotReadableException * if the message is in write-only mode. */ public String readString() throws JMSException { initializeReading(); try { this.dataIn.mark(65); int type = this.dataIn.read(); if (type == -1) { throw new MessageEOFException("reached end of data"); } if (type == MarshallingSupport.NULL) { return null; } if (type == MarshallingSupport.BIG_STRING_TYPE) { return MarshallingSupport.readUTF8(dataIn); } if (type == MarshallingSupport.STRING_TYPE) { return this.dataIn.readUTF(); } if (type == MarshallingSupport.LONG_TYPE) { return new Long(this.dataIn.readLong()).toString(); } if (type == MarshallingSupport.INTEGER_TYPE) { return new Integer(this.dataIn.readInt()).toString(); } if (type == MarshallingSupport.SHORT_TYPE) { return new Short(this.dataIn.readShort()).toString(); } if (type == MarshallingSupport.BYTE_TYPE) { return new Byte(this.dataIn.readByte()).toString(); } if (type == MarshallingSupport.FLOAT_TYPE) { return new Float(this.dataIn.readFloat()).toString(); } if (type == MarshallingSupport.DOUBLE_TYPE) { return new Double(this.dataIn.readDouble()).toString(); } if (type == MarshallingSupport.BOOLEAN_TYPE) { return (this.dataIn.readBoolean() ? Boolean.TRUE : Boolean.FALSE).toString(); } if (type == MarshallingSupport.CHAR_TYPE) { return new Character(this.dataIn.readChar()).toString(); } else { this.dataIn.reset(); throw new MessageFormatException(" not a String type"); } } catch (NumberFormatException mfe) { try { this.dataIn.reset(); } catch (IOException ioe) { JMSException jmsEx = new MessageFormatException(ioe.getMessage()); jmsEx.setLinkedException(ioe); throw jmsEx; } throw mfe; } catch (EOFException e) { String exMessage = "Reached premature EOF: " + e.getMessage(); _log.error(exMessage, e); throw new JMSException(exMessage); } catch (IOException e) { String exMessage = "Could not read boolean: " + e.getMessage(); _log.error(exMessage, e); throw new JMSException(exMessage); } }
From source file:org.skyscreamer.nevado.jms.message.NevadoStreamMessage.java
/** * Reads a byte array field from the stream message into the specified * <CODE>byte[]</CODE> object (the read buffer). <p/> * <P>//from w ww . j av a2s . c o m * To read the field value, <CODE>readBytes</CODE> should be successively * called until it returns a value less than the length of the read buffer. * The value of the bytes in the buffer following the last byte read is * undefined. <p/> * <P> * If <CODE>readBytes</CODE> returns a value equal to the length of the * buffer, a subsequent <CODE>readBytes</CODE> call must be made. If there * are no more bytes to be read, this call returns -1. <p/> * <P> * If the byte array field value is null, <CODE>readBytes</CODE> returns * -1. <p/> * <P> * If the byte array field value is empty, <CODE>readBytes</CODE> returns * 0. <p/> * <P> * Once the first <CODE>readBytes</CODE> call on a <CODE>byte[]</CODE> * field value has been made, the full value of the field must be read * before it is valid to read the next field. An attempt to read the next * field before that has been done will throw a <CODE>MessageFormatException</CODE>. * <p/> * <P> * To read the byte field value into a new <CODE>byte[]</CODE> object, use * the <CODE>readObject</CODE> method. * * @param value * the buffer into which the data is read * @return the total number of bytes read into the buffer, or -1 if there is * no more data because the end of the byte field has been reached * @throws JMSException * if the JMS provider fails to read the message due to some * internal error. * @throws MessageEOFException * if unexpected end of message stream has been reached. * @throws MessageFormatException * if this type conversion is invalid. * @throws MessageNotReadableException * if the message is in write-only mode. * @see #readObject() */ public int readBytes(byte[] value) throws JMSException { initializeReading(); try { if (value == null) { throw new NullPointerException(); } if (remainingBytes == -1) { this.dataIn.mark(value.length + 1); int type = this.dataIn.read(); if (type == -1) { throw new MessageEOFException("reached end of data"); } if (type != MarshallingSupport.BYTE_ARRAY_TYPE) { throw new MessageFormatException("Not a byte array"); } remainingBytes = this.dataIn.readInt(); } else if (remainingBytes == 0) { remainingBytes = -1; return -1; } if (value.length <= remainingBytes) { // small buffer remainingBytes -= value.length; this.dataIn.readFully(value); return value.length; } else { // big buffer int rc = this.dataIn.read(value, 0, remainingBytes); remainingBytes = 0; return rc; } } catch (EOFException e) { JMSException jmsEx = new MessageEOFException(e.getMessage()); jmsEx.setLinkedException(e); throw jmsEx; } catch (IOException e) { JMSException jmsEx = new MessageFormatException(e.getMessage()); jmsEx.setLinkedException(e); throw jmsEx; } }
From source file:org.skyscreamer.nevado.jms.message.NevadoStreamMessage.java
/** * Reads an object from the stream message. <p/> * <P>/*from w w w. java 2 s .c om*/ * This method can be used to return, in objectified format, an object in * the Java programming language ("Java object") that has been written to * the stream with the equivalent <CODE>writeObject</CODE> method call, or * its equivalent primitive <CODE>write<I>type</I></CODE> method. <p/> * <P> * Note that byte values are returned as <CODE>byte[]</CODE>, not <CODE>Byte[]</CODE>. * <p/> * <P> * An attempt to call <CODE>readObject</CODE> to read a byte field value * into a new <CODE>byte[]</CODE> object before the full value of the byte * field has been read will throw a <CODE>MessageFormatException</CODE>. * * @return a Java object from the stream message, in objectified format (for * example, if the object was written as an <CODE>int</CODE>, an * <CODE>Integer</CODE> is returned) * @throws JMSException * if the JMS provider fails to read the message due to some * internal error. * @throws MessageEOFException * if unexpected end of message stream has been reached. * @throws MessageFormatException * if this type conversion is invalid. * @throws MessageNotReadableException * if the message is in write-only mode. * @see #readBytes(byte[] value) */ public Object readObject() throws JMSException { initializeReading(); try { this.dataIn.mark(65); int type = this.dataIn.read(); if (type == -1) { throw new MessageEOFException("reached end of data"); } if (type == MarshallingSupport.NULL) { return null; } if (type == MarshallingSupport.BIG_STRING_TYPE) { return MarshallingSupport.readUTF8(dataIn); } if (type == MarshallingSupport.STRING_TYPE) { return this.dataIn.readUTF(); } if (type == MarshallingSupport.LONG_TYPE) { return new Long(this.dataIn.readLong()); } if (type == MarshallingSupport.INTEGER_TYPE) { return new Integer(this.dataIn.readInt()); } if (type == MarshallingSupport.SHORT_TYPE) { return new Short(this.dataIn.readShort()); } if (type == MarshallingSupport.BYTE_TYPE) { return new Byte(this.dataIn.readByte()); } if (type == MarshallingSupport.FLOAT_TYPE) { return new Float(this.dataIn.readFloat()); } if (type == MarshallingSupport.DOUBLE_TYPE) { return new Double(this.dataIn.readDouble()); } if (type == MarshallingSupport.BOOLEAN_TYPE) { return this.dataIn.readBoolean() ? Boolean.TRUE : Boolean.FALSE; } if (type == MarshallingSupport.CHAR_TYPE) { return new Character(this.dataIn.readChar()); } if (type == MarshallingSupport.BYTE_ARRAY_TYPE) { int len = this.dataIn.readInt(); byte[] value = new byte[len]; this.dataIn.readFully(value); return value; } else { this.dataIn.reset(); throw new MessageFormatException("unknown type"); } } catch (NumberFormatException mfe) { try { this.dataIn.reset(); } catch (IOException ioe) { JMSException jmsEx = new MessageFormatException(ioe.getMessage()); jmsEx.setLinkedException(ioe); throw jmsEx; } throw mfe; } catch (EOFException e) { JMSException jmsEx = new MessageEOFException(e.getMessage()); jmsEx.setLinkedException(e); throw jmsEx; } catch (IOException e) { JMSException jmsEx = new MessageFormatException(e.getMessage()); jmsEx.setLinkedException(e); throw jmsEx; } }
From source file:org.wso2.andes.server.information.management.QueueManagementInformationMBean.java
/** * Check that there is at least a certain number of bytes available to read * * @param length the number of bytes/*from www .j a va2 s .com*/ * @throws javax.jms.MessageEOFException if there are less than len bytes available to read */ private void checkAvailable(int length, ByteBuffer byteBuffer) throws MessageEOFException { if (byteBuffer.remaining() < length) { throw new MessageEOFException("Unable to read " + length + " bytes"); } }