File-tail event receiver reads the tail of a given file and feeds that to the product engine. It only supports text input mapping type.
Creating a file-tail event receiver
Configuring global properties
The following global property can be set for the
file-tail event receiver type in the
<DAS_HOME>/repository/conf/input-event-adapters.xml file. This property applies to all the receivers of the
file-tail type. If this property is removed from the file, its default value still applies.
|Property Key||Description||Data Type||Default Value|
|If this property is set to ||Boolean|
Configuring adapter properties
Specify the Adapter Properties, when creating a file-tail event receiver using the management console as shown below.
After entering the above adapter properties, select the Event Stream to which you want to map the incoming events, and the Message Format which you want to apply on the receiving events . Also, click Advanced to define custom input mappings based on the Message Format you selected. For more information on custom input mapping types, see Input Mapping Types .
You can also d efine the respective adapter properties of the event receiver based on the transport type within the
<from> element of the event receiver configuration in the
<PRODUCT_HOME>/repository/deployment/server/eventreceivers/ directory as follows.
The above adapter properties are described below.
|Configuration file property||Example|
Absolute path of the text file to read the data from.
The delay between checks for new content on file in milliseconds.
Start From End
Set to true to tail from the end of the file, false to tail from the beginning of the file.
For more information on
file-tail event receiver type, see the following samples in WSO2 CEP Documentation.