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MQ for Java
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Ann Ron
Greenhorn
Joined: Oct 21, 2003
Posts: 24
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Hi, I am trying to write a program in Java using native MQ API's and the program is supposed to get messages off a queue and format the message we get.I have been trying to find on the net how to do that,as I want to format the strings as I receive them from the queue. Like the first 8 characters I get from the MQ Queue,I want to put certain delimiters around them and then around the next 6 chars,different delimiters and so on for about 61 chars from the queue.I tried doing retrivedMessage.readString(8) but that is only for the first 8,how do I get to the next 6 and so on also I tried retrivedMessage.readUTF() but that retrieves the whole message from the queue.whereas I want to format the message into different sets with delimiters to differentiate each of them.my sample code is below: MQMessage retrievedMessage = new MQMessage ( ); mqQ.get ( retrievedMessage,gmo); msgText = retrievedMessage.readUTF( ); if ( retrievedMessage.getMessageLength() != 0){ String fl1 = retrievedMessage.readString(8); fl1 = "DT" + fl1 + "DT"; //Substring doesn't work in MQ,this next line throws an error. String fl2 = retrievedMessage.substring(8,16); fl2 = "NT" + fl2 + "NT"; } else System.out.println(" No data Available "); How can I get to the next set of values on the queue and format them.It doesn't recognize the substring defn in MQ. Any help?? Thanks in advance.. Ann
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Vinod Venkatasubramanian
Greenhorn
Joined: Oct 19, 2003
Posts: 13
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Hi Ann, Am slightly confused on what actually you want to do. (1) How are the messages avbl on the queue ? As strings or as characters ? (2) How do you want to format the message exactly ? Do you want to a read a string off the queue and the delimit it in a particular fashion ? If you want to retrieve string messages off the queue and then format them, the first step would be to separate the reading of queue and formatting -> this makes it much simpler to code. If you can give some details, I will see if I can be of any help.
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subject: MQ for Java
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