The Browser sample program
The Browser sample program reads and writes both the message descriptor and the message content fields of all the messages on a queue.
The sample program is written as a utility, not just to demonstrate a technique. See Features demonstrated in the sample programs for the names of these programs.
This program takes these parameters:
- The name of the source queue
- The name of the queue manager
- An optional parameter for properties.
The first two input parameters for this program are mandatory.
For example, start the program in one of the following ways:
amqsbcg myqueue qmanagername
amqsbcgc myqueue qmanagername
myqueue
is the name of the queue on which
the messages are going to be browsed, and qmanagername
is
the queue manager that owns myqueue
.It reads each message from the queue and writes the following to
stdout:
- Formatted message descriptor fields
- Message data (dumped in hex and, where possible, character format)
Permissible values for the property parameter are:
Value | Behavior |
---|---|
0 | Default behaviour, as it was for V6. The properties that get delivered to the application depend on the PropertyControl queue attribute that the message is retrieved from. |
1 | A message handle is created and used with the
MQGET. Properties of the message, except those contained in the message
descriptor (or extension) are displayed in a similar fashion to the
message descriptor. For example: Or
if no properties are available: Numeric values are displayed using printf ,
string values are surrounding in single quotation marks, and byte
strings are surrounded with X and single quotation marks, as for the
message descriptor. |
2 | MQGMO_NO_PROPERTIES is specified, so that only message descriptor properties will be returned. |
3 | MQGMO_PROPERTIES_FORCE_MQRFH2 is specified, so that all properties are returned in the message data. |
4 | MQGMO_PROPERTIES_COMPATIBILITY is specified, so that all properties can be returned depending on whether a version 6 property is included, otherwise the properties are discarded. |
The program is restricted to printing the first 65535 characters of the message, and fails with the reason truncated msg if a longer message is read.
See the Administering for an example of the output from this utility.