Configure an activity processor

An activity processor is used to modify the content of activities before they are returned from an activity manager. For example, to create an activity processor to replace all the texts representing the smile face ":-)" in the activity title by the smiley icons, do as follows:

Firstly, create the SmileyProcessor class by extending the BaseActivityProcessorPlugin.



package org.exoplatform.social.core.activitystream;


import org.exoplatform.social.core.BaseActivityProcessorPlugin;

import org.exoplatform.container.xml.InitParams;

import org.exoplatform.social.core.activity.model.ExoSocialActivity;


public class SmileyProcessor extends BaseActivityProcessorPlugin {

  private String smiley;

  

  public SmileyProcessor(InitParams params) {

    super(params);

    this.smiley = "<img src={{{"}}}http://www.tombraider4u.com/pictures/smiley.gif{{{"}}}/>";

  }


  @Override

  public void processActivity(ExoSocialActivity activity) {

    String title = activity.getTitle();

    activity.setTitle(title.replaceAll(":-)", this.smiley));

  }

}

Then, register this processor by editing the configuration.xml file:




<external-component-plugins>

  <target-component>org.exoplatform.social.core.manager.ActivityManager</target-component>

  <component-plugin>

    <name>SmileyProcessor</name>

    <set-method>addProcessorPlugin</set-method>

    <type>org.exoplatform.social.core.activitystream.SmileyProcessor</type>

    <description/>

    <init-params>

      <values-param>

        <name>priority</name>

        <value>1</value>

      </values-param>

    </init-params>

  </component-plugin>

</external-component-plugins>

The "init-params" contains all the key-value data which a processor will use to initialize. In the above configuration, the priority value indicates the order in which this processor is executed. If the value is 1, this processor will be used before all the remaining processors with the lower priority.