| # Broker Plugin Example |
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| If you have not already done so, [prepare the broker distribution](../../../../README.md#getting-started) before running the example. |
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| To run the example, simply type **mvn verify** from this directory, or **mvn -PnoServer verify** if you want to start and create the broker manually. |
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| This example shows how a message plugin can be used to filter message sent to a consumer depending on that consumers roles. Credentials for a user are by default invalidated every 10 seconds so this plugin may cause excessive authentication if used without configuring the security-invalidation-interval limit appropriately. |