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Load the following sample configurations and properties to define the data agent in the JVM.

Code Block

language	xml

<DataAgentsConfiguration>
    <Agent>
        <Name>Thrift</Name>
        <DataEndpointClass>org.wso2.carbon.databridge.agent.internal.endpoint.thrift.ThriftDataEndpoint</DataEndpointClass>
        <TrustSore>src/main/resources/client-truststore.jks</TrustSore>
        <TrustSorePassword>wso2carbon</TrustSorePassword>
        <QueueSize>32768</QueueSize>
        <BatchSize>200</BatchSize>
        <CorePoolSize>5</CorePoolSize>
        <MaxPoolSize>10</MaxPoolSize>
        <KeepAliveTimeInPool>20</KeepAliveTimeInPool>
        <ReconnectionInterval>30</ReconnectionInterval>
        <MaxTransportPoolSize>250</MaxTransportPoolSize>
        <MaxIdleConnections>250</MaxIdleConnections>
        <EvictionTimePeriod>5500</EvictionTimePeriod>
        <MinIdleTimeInPool>5000</MinIdleTimeInPool>
        <SecureMaxTransportPoolSize>250</SecureMaxTransportPoolSize>
        <SecureMaxIdleConnections>250</SecureMaxIdleConnections>
        <SecureEvictionTimePeriod>5500</SecureEvictionTimePeriod>
        <SecureMinIdleTimeInPool>5000</SecureMinIdleTimeInPool>
    </Agent>

    <Agent>
        <Name>Binary</Name>
        <DataEndpointClass>org.wso2.carbon.databridge.agent.internal.endpoint.binary.BinaryDataEndpoint
        </DataEndpointClass>
        <TrustSore>src/main/resources/client-truststore.jks</TrustSore>
        <TrustSorePassword>wso2carbon</TrustSorePassword>
        <QueueSize>32768</QueueSize>
        <BatchSize>200</BatchSize>
        <CorePoolSize>5</CorePoolSize>
        <MaxPoolSize>10</MaxPoolSize>
        <KeepAliveTimeInPool>20</KeepAliveTimeInPool>
        <ReconnectionInterval>30</ReconnectionInterval>
        <MaxTransportPoolSize>250</MaxTransportPoolSize>
        <MaxIdleConnections>250</MaxIdleConnections>
        <EvictionTimePeriod>5500</EvictionTimePeriod>
        <MinIdleTimeInPool>5000</MinIdleTimeInPool>
        <SecureMaxTransportPoolSize>250</SecureMaxTransportPoolSize>
        <SecureMaxIdleConnections>250</SecureMaxIdleConnections>
        <SecureEvictionTimePeriod>5500</SecureEvictionTimePeriod>
        <SecureMinIdleTimeInPool>5000</SecureMinIdleTimeInPool>
    </Agent>
</DataAgentsConfiguration>

Tip
To configure the above parameters in the `<CEP_HOME>/repository/conf/data-bridge/data-agent-conf.xml` file in order to tune performance, follow the instructions in WSO2 event configuration.

Instantiate the data publisher as follows: AgentHolder. setConfigPath(“/path/to/data/agent/conf.xml”)

Set trustStore

Code Block

language	java

File securityFile = new File(<CEP_HOME> + "repository" + File.separator + "resources" + File.separator +"security");
String trustStore = securityFile.getAbsolutePath();
System.setProperty("javax.net.ssl.trustStore", trustStore + "" + File.separator + "client-truststore.jks");
System.setProperty("javax.net.ssl.trustStorePassword", "wso2carbon");

Info
This is also the can be found at https://github.com/wso2/carbon-kernel/tree/master/distribution/kernel/carbon-home/repository/resources/security

Instantiate and use the data publisher using one of the following configurations:

DataPublisher dataPublisher = new DataPublisher(url, username, password);
DataPublisher dataPublisher = new DataPublisher(receiverURLSet, username, password);

DataPublisher dataPublisher = new DataPublisher(receiverURLSet,authURLSet, username, password);

Info
For information on the `receiverURLSet` and `authURLSet` parameters of the above configuration, see Setting up Multi Receiver and Load Balancing Data Agent. And similarly if you are passing an receiverURLSet as tcp://localhost:7611\|tcp://localhost:7612\|tcp://localhost:7613, then the corresponding authentication URL set will be ssl://localhost:7711\|ssl://localhost:7712\|ssl://localhost:7713.

In all the above methods, the default data agent (which is configured as first Agent element in the above configuration) will be used to create the data publishers. If you have configured only the Thrift data agent in the <CEP_HOME>/repository/conf/data-bridge/data-agent-conf.xml file, then this will provide you a Thirft-based data publisher instance.

However, if you have configured more types of data agents in the <CEP_HOME>/repository/conf/data-bridge/data-agent-conf.xml file (Eg: Binary Agent in the above sample data-agent-conf.xml ), then you can pass an additional property named type, which denotes the type of data publisher that needs to be created. For example, if you have a binary data publisher, then you can pass binary as the type to get the binary data publisher Instance as shown below.

Code Block

language	java

 DataPublisher dataPublisher = new DataPublisher(String type, String receiverURLSet, String authURLSet, String username, String password);

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