Flume Custom Interceptor is not Working - flume

Question

I want to change IP address in data by its mask IP. This is done in the "backup" part of my Flume agent (see below).
In this configuration there are 2 channels: the first channel dumps data to HBase, while the second one is used for backup:
a1.sources = r1 r2
a1.channels = channel1 Backup_channel
a1.sinks = FSink
a1.sources.r1.handler = com.flume.handler.JSONHandler
a1.sources.r1.type = avro
a1.sources.r1.bind = x.x.x.x
a1.sources.r1.port = 10008
a1.sources.r2.handler = com.flume.handler.JSONHandler
a1.sources.r2.type = avro
a1.sources.r2.bind = x.x.x.x
a1.sources.r2.port = 10009
a1.sources.r2.interceptors = i1
a1.sources.r2.interceptors.i1.type = com.flume.interceptor.DcInterceptor
a1.channels.channel1.type = file
a1.channels.channel1.checkpointDir = /root/flume/channels/Livechannel/checkpoint
a1.channels.channel1.dataDirs = /root/flume/channels/Livechannel/data
a1.sinks.FSink.type = hbase
a1.sinks.FSink.table = Temp_Test
a1.sinks.FSink.batchSize = 300
a1.sinks.FSink.columnFamily = T
a1.sinks.FSink.serializer = com.flume.sink.TestTP
a1.sources.r1.channels = channel1
a1.sources.r2.channels = Backup_channel
a1.channels.Backup_channel.type = file
a1.channels.Backup_channel.checkpointDir = /data/disk/flume/backup/checkpoint
a1.channels.Backup_channel.dataDirs = /data/disk/flume/backup/data
a1.sinks.FSink.channel = channel1
Following is my custom Java Interceptor Code. It implements the interception method, which get an IP address from the body, calculates its IP mask and then adds it to the body. But somehow it's not working:
public class DcInterceptor implements Interceptor {
private byte[] jsonTestBeans;
private final Type listType = new TypeToken < List < TestBeans >> () {}.getType();
#Override
public void close() {
// TODO Auto-generated method stub
}
#Override
public void initialize() {
// TODO Auto-generated method stub
new Logger();
}
#Override
public Event intercept(Event event) {
// TODO Auto-generated method stub
List < Row > actions = new ArrayList < Row > ();
this.jsonTestBeans = event.getBody();
Logger.logger.debug("In Interceptor");
System.out.println("In Interceptor");
Gson _Gson = new Gson();
String jsonstr = "";
try {
jsonstr = new String(jsonTestBeans, "UTF-8");
} catch (Exception e) {
// TODO: handle exception
Logger.logger.error(e.getMessage() + "In Interceptor");
jsonstr = new String(jsonTestBeans);
}
List < TestBeans > TestBeanss = _Gson.fromJson(jsonstr, listType);
System.out.println("Json String :" + jsonstr);
List < String > gTouch = new ArrayList < String > ();
for (TestBeans TestBeans: TestBeanss) {
String str = TestBeans.getIp();
Logger.logger.debug("IP : " + str);
String st = (str.substring(0, str.lastIndexOf(".") + 1) + "x");
Logger.logger.debug("Mask IP : " + st);
TestBeans.setRemoteIp(st);
}
event.setBody(_Gson.toJson(TestBeanss).getBytes());
Logger.logger.debug("Interceptor Ends");
return event;
}
#Override
public List < Event > intercept(List < Event > events) {
// TODO Auto-generated method stub
System.out.println("In List Interceptor");
Logger.logger.debug("In List Interceptor");
for (Event event: events) {
intercept(event);
}
return events;
}
public static class CounterInterceptorBuilder implements Interceptor.Builder {
private Context ctx;
#Override
public Interceptor build() {
Logger.logger.debug("In Interceptor Build");
System.out.println("In Build Interceptor");
return new DcInterceptor();
}
#Override
public void configure(Context context) {
this.ctx = context;
}
}

Answer 1

At least, I can see:
The configuration lines regarding your interceptor refer to an agent called ECircleTp_Test, while the rest of the configuration refer to a1.
You have configured com.flume.interceptor.DcInterceptor2, but the interceptor class you have developed is called DcInterceptor (without the final 2).
You have configured com.flume.interceptor.DcInterceptor2 as the fully qualified class name of your custom interceptor. Nevertheless, the code of the interceptor does not declare any package for the DcInterceptor(2) class.