8.5. Remote Event Listeners (Hot Rod)

@org.infinispan.client.hotrod.annotation.ClientListener(filterFactoryName = "basic-filter-factory")
public class BasicFilteredEventLogListener extends EventLogListener {}

@org.infinispan.client.hotrod.annotation.ClientListener(filterFactoryName = "basic-filter-factory")
public class BasicFilteredEventLogListener extends EventLogListener {}

import org.infinispan.client.hotrod.*;

RemoteCacheManager rcm = new RemoteCacheManager();
RemoteCache<Integer, String> cache = rcm.getCache();
BasicFilteredEventLogListener listener = new BasicFilteredEventLogListener();
try {
  cache.addClientListener(listener);
  cache.putIfAbsent(1, "one");
  cache.replace(1, "new-one");
  cache.putIfAbsent(2, "two");
  cache.replace(2, "new-two");
  cache.putIfAbsent(3, "three");
  cache.replace(3, "new-three");
  cache.remove(1);
  cache.remove(2);
  cache.remove(3);
} finally {
  cache.removeClientListener(listener);
}

import org.infinispan.client.hotrod.*;

RemoteCacheManager rcm = new RemoteCacheManager();
RemoteCache<Integer, String> cache = rcm.getCache();
BasicFilteredEventLogListener listener = new BasicFilteredEventLogListener();
try {
  cache.addClientListener(listener);
  cache.putIfAbsent(1, "one");
  cache.replace(1, "new-one");
  cache.putIfAbsent(2, "two");
  cache.replace(2, "new-two");
  cache.putIfAbsent(3, "three");
  cache.replace(3, "new-three");
  cache.remove(1);
  cache.remove(2);
  cache.remove(3);
} finally {
  cache.removeClientListener(listener);
}

package sample;

import java.io.Serializable;
import org.infinispan.notifications.cachelistener.filter.*;
import org.infinispan.metadata.*;

@NamedFactory(name = "basic-filter-factory")
public class BasicKeyValueFilterFactory implements CacheEventFilterFactory {
  @Override public CacheEventFilter<Integer, String> getFilter(final Object[] params) {
    return new BasicKeyValueFilter(params);
}

  static class BasicKeyValueFilter implements CacheEventFilter<Integer, String>, Serializable {
    private final Object[] params;
    public BasicKeyValueFilter(Object[] params) { this.params = params; }
    @Override public boolean accept(Integer key, String oldValue, Metadata oldMetadata, String newValue, Metadata newMetadata, EventType eventType) {
      return !params[0].equals(key);
    }
  }
}

package sample;

import java.io.Serializable;
import org.infinispan.notifications.cachelistener.filter.*;
import org.infinispan.metadata.*;

@NamedFactory(name = "basic-filter-factory")
public class BasicKeyValueFilterFactory implements CacheEventFilterFactory {
  @Override public CacheEventFilter<Integer, String> getFilter(final Object[] params) {
    return new BasicKeyValueFilter(params);
}

  static class BasicKeyValueFilter implements CacheEventFilter<Integer, String>, Serializable {
    private final Object[] params;
    public BasicKeyValueFilter(Object[] params) { this.params = params; }
    @Override public boolean accept(Integer key, String oldValue, Metadata oldMetadata, String newValue, Metadata newMetadata, EventType eventType) {
      return !params[0].equals(key);
    }
  }
}

import org.infinispan.client.hotrod.*;

RemoteCacheManager rcm = new RemoteCacheManager();
RemoteCache<Integer, String> cache = rcm.getCache();
BasicFilteredEventLogListener listener = new BasicFilteredEventLogListener();
try {
  cache.addClientListener(listener, new Object[]{3}, null); // <- Filter parameter passed
  cache.putIfAbsent(1, "one");
  cache.replace(1, "new-one");
  cache.putIfAbsent(2, "two");
  cache.replace(2, "new-two");
  cache.putIfAbsent(3, "three");
  cache.replace(3, "new-three");
  cache.remove(1);
  cache.remove(2);
  cache.remove(3);
} finally {
  cache.removeClientListener(listener);
}

import org.infinispan.client.hotrod.*;

RemoteCacheManager rcm = new RemoteCacheManager();
RemoteCache<Integer, String> cache = rcm.getCache();
BasicFilteredEventLogListener listener = new BasicFilteredEventLogListener();
try {
  cache.addClientListener(listener, new Object[]{3}, null); // <- Filter parameter passed
  cache.putIfAbsent(1, "one");
  cache.replace(1, "new-one");
  cache.putIfAbsent(2, "two");
  cache.replace(2, "new-two");
  cache.putIfAbsent(3, "three");
  cache.replace(3, "new-three");
  cache.remove(1);
  cache.remove(2);
  cache.remove(3);
} finally {
  cache.removeClientListener(listener);
}

import org.infinispan.notifications.cachelistener.filter.*;
 
@NamedFactory(name = "value-added-converter-factory")
class ValueAddedConverterFactory implements CacheEventConverterFactory {
  // The following types correspond to the Key, Value, and the returned Event, respectively.
  public CacheEventConverter<Integer, String, ValueAddedEvent> getConverter(final Object[] params) {
    return new ValueAddedConverter();
  }
 
  static class ValueAddedConverter implements CacheEventConverter<Integer, String, ValueAddedEvent> {
    public ValueAddedEvent convert(Integer key, String oldValue,
                                   Metadata oldMetadata, String newValue, 
                                   Metadata newMetadata, EventType eventType) {
      return new ValueAddedEvent(key, newValue);
    }
  }
}
 
// Must be Serializable or Externalizable.
class ValueAddedEvent implements Serializable {
    final Integer key;
    final String value;
    ValueAddedEvent(Integer key, String value) {
      this.key = key;
      this.value = value;
    }
}

import org.infinispan.notifications.cachelistener.filter.*;
 
@NamedFactory(name = "value-added-converter-factory")
class ValueAddedConverterFactory implements CacheEventConverterFactory {
  // The following types correspond to the Key, Value, and the returned Event, respectively.
  public CacheEventConverter<Integer, String, ValueAddedEvent> getConverter(final Object[] params) {
    return new ValueAddedConverter();
  }
 
  static class ValueAddedConverter implements CacheEventConverter<Integer, String, ValueAddedEvent> {
    public ValueAddedEvent convert(Integer key, String oldValue,
                                   Metadata oldMetadata, String newValue, 
                                   Metadata newMetadata, EventType eventType) {
      return new ValueAddedEvent(key, newValue);
    }
  }
}
 
// Must be Serializable or Externalizable.
class ValueAddedEvent implements Serializable {
    final Integer key;
    final String value;
    ValueAddedEvent(Integer key, String value) {
      this.key = key;
      this.value = value;
    }
}

import org.infinispan.notifications.cachelistener.filter.CacheEventConverterFactory;
import org.infinispan.notifications.cachelistener.filter.CacheEventConverter;

class DynamicCacheEventConverterFactory implements CacheEventConverterFactory {
   // The following types correspond to the Key, Value, and the returned Event, respectively.
   public CacheEventConverter<Integer, String, CustomEvent> getConverter(final Object[] params) {
      return new DynamicCacheEventConverter(params);
   }
}

// Serializable, Externalizable or marshallable with Infinispan Externalizers needed when running in a cluster
class DynamicCacheEventConverter implements CacheEventConverter<Integer, String, CustomEvent>, Serializable {
   final Object[] params;

   DynamicCacheEventConverter(Object[] params) {
      this.params = params;
   }

   public CustomEvent convert(Integer key, String oldValue, Metadata metadata, String newValue, Metadata prevMetadata, EventType eventType) {
      // If the key matches a key given via parameter, only send the key information
      if (params[0].equals(key))
         return new ValueAddedEvent(key, null);

      return new ValueAddedEvent(key, newValue);
   }
}

import org.infinispan.notifications.cachelistener.filter.CacheEventConverterFactory;
import org.infinispan.notifications.cachelistener.filter.CacheEventConverter;

class DynamicCacheEventConverterFactory implements CacheEventConverterFactory {
   // The following types correspond to the Key, Value, and the returned Event, respectively.
   public CacheEventConverter<Integer, String, CustomEvent> getConverter(final Object[] params) {
      return new DynamicCacheEventConverter(params);
   }
}

// Serializable, Externalizable or marshallable with Infinispan Externalizers needed when running in a cluster
class DynamicCacheEventConverter implements CacheEventConverter<Integer, String, CustomEvent>, Serializable {
   final Object[] params;

   DynamicCacheEventConverter(Object[] params) {
      this.params = params;
   }

   public CustomEvent convert(Integer key, String oldValue, Metadata metadata, String newValue, Metadata prevMetadata, EventType eventType) {
      // If the key matches a key given via parameter, only send the key information
      if (params[0].equals(key))
         return new ValueAddedEvent(key, null);

      return new ValueAddedEvent(key, newValue);
   }
}

import org.infinispan.client.hotrod.annotation.*;
import org.infinispan.client.hotrod.event.*;

@ClientListener(converterFactoryName = "value-added-converter-factory")
public class CustomEventLogListener {

    @ClientCacheEntryCreated
    @ClientCacheEntryModified
    @ClientCacheEntryRemoved
    public void handleRemoteEvent(ClientCacheEntryCustomEvent<ValueAddedEvent> event)
    {
        System.out.println(event);
    }
}

import org.infinispan.client.hotrod.annotation.*;
import org.infinispan.client.hotrod.event.*;

@ClientListener(converterFactoryName = "value-added-converter-factory")
public class CustomEventLogListener {

    @ClientCacheEntryCreated
    @ClientCacheEntryModified
    @ClientCacheEntryRemoved
    public void handleRemoteEvent(ClientCacheEntryCustomEvent<ValueAddedEvent> event)
    {
        System.out.println(event);
    }
}

import org.infinispan.client.hotrod.*;

RemoteCacheManager rcm = new RemoteCacheManager();
RemoteCache<Integer, String> cache = rcm.getCache();
CustomEventLogListener listener = new CustomEventLogListener();
try {
  cache.addClientListener(listener);
  cache.put(1, "one");
  cache.put(1, "new-one");
  cache.remove(1);
} finally {
  cache.removeClientListener(listener);
}

import org.infinispan.client.hotrod.*;

RemoteCacheManager rcm = new RemoteCacheManager();
RemoteCache<Integer, String> cache = rcm.getCache();
CustomEventLogListener listener = new CustomEventLogListener();
try {
  cache.addClientListener(listener);
  cache.put(1, "one");
  cache.put(1, "new-one");
  cache.remove(1);
} finally {
  cache.removeClientListener(listener);
}