SpamFilter (Tigase Spam Filter 2.2.0 API)

All Known Subinterfaces:

ResultsAwareSpamFilter

All Known Implementing Classes:

AbstractSpamFilter, KnownSpammersFilter, MessageErrorFilterEnsureErrorChild, MessageFilterSameLongBody, MucMessageFilterEnsureToFullJid, PresenceSubscribeFilter, PresenceSubscribeOutgoingFilter
```
public interface SpamFilter
```
Interface which needs to be implemented by all filters used by SpamProcessor to detect spam. Created by andrzej on 08.04.2017.

Method Summary

All Methods Instance Methods Abstract Methods Default Methods
Modifier and Type	Method	Description
`boolean`	`filter(tigase.server.Packet packet, tigase.xmpp.XMPPResourceConnection session)`	Method processes packet and checks if it is a SPAM or not
`java.lang.String`	`getId()`	Method returns ID of a filter
`default double`	`getSpamProbability()`	Method returns probability of detection of a spammer.
`default void`	`getStatistics(java.lang.String name, tigase.stats.StatisticsList list)`	Method should fill the `list` parameter value with statistics about processed stanzas.

- Method Detail
  - filter
```
boolean filter(tigase.server.Packet packet,
               tigase.xmpp.XMPPResourceConnection session)
```
    Method processes packet and checks if it is a SPAM or not
    
    Returns:
    
    false if message should be dropped as it it a SPAM
  - getId
```
java.lang.String getId()
```
    Method returns ID of a filter
  - getStatistics
```
default void getStatistics(java.lang.String name,
                           tigase.stats.StatisticsList list)
```
    Method should fill the list parameter value with statistics about processed stanzas. Default implementation should be used if there are no meaningful values to return.
  - getSpamProbability
```
default double getSpamProbability()
```
    Method returns probability of detection of a spammer. If value is closer to 1 this means that it is more likely that sender of stanza marked by this filter as a spam is a spammer and should be blocked. This value is used by ResultsAwareSpamFilter implementation to decide if sender of a stanza should be blocked (ie. using number of blocked messages within a period of time and spammer detection probability returned by this method.
    
    Returns:
    
    values between 0 and 1