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JPAProtobufCacheEventFilterConverter.java
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JPAProtobufCacheEventFilterConverter.java
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package org.infinispan.query.remote.impl.filter;
import org.infinispan.commons.marshall.AbstractExternalizer;
import org.infinispan.factories.annotations.Inject;
import org.infinispan.manager.EmbeddedCacheManager;
import org.infinispan.metadata.Metadata;
import org.infinispan.notifications.cachelistener.filter.EventType;
import org.infinispan.objectfilter.ObjectFilter;
import org.infinispan.protostream.ProtobufUtil;
import org.infinispan.protostream.SerializationContext;
import org.infinispan.query.dsl.embedded.impl.JPACacheEventFilterConverter;
import org.infinispan.query.dsl.embedded.impl.JPAFilterAndConverter;
import org.infinispan.query.remote.client.FilterResult;
import org.infinispan.query.remote.impl.ExternalizerIds;
import org.infinispan.query.remote.impl.ProtobufMetadataManagerImpl;
import java.io.IOException;
import java.io.ObjectInput;
import java.io.ObjectOutput;
import java.util.Collections;
import java.util.Set;
/**
* @author anistor@redhat.com
* @since 7.2
*/
public final class JPAProtobufCacheEventFilterConverter extends JPACacheEventFilterConverter<Object, Object, byte[]> {
private SerializationContext serCtx;
public JPAProtobufCacheEventFilterConverter(JPAFilterAndConverter<Object, Object> filterAndConverter) {
super(filterAndConverter);
}
@Inject
@SuppressWarnings("unused")
protected void injectDependencies(EmbeddedCacheManager cacheManager) {
serCtx = ProtobufMetadataManagerImpl.getSerializationContextInternal(cacheManager);
}
@Override
public byte[] filterAndConvert(Object key, Object oldValue, Metadata oldMetadata, Object newValue, Metadata newMetadata, EventType eventType) {
ObjectFilter.FilterResult filterResult = filterAndConverter.filterAndConvert(key, newValue, newMetadata);
if (filterResult != null) {
try {
return ProtobufUtil.toWrappedByteArray(serCtx, new FilterResult(filterResult.getInstance(), filterResult.getProjection(), filterResult.getSortProjection()));
} catch (IOException e) {
throw new RuntimeException(e);
}
}
return null;
}
public static final class Externalizer extends AbstractExternalizer<JPAProtobufCacheEventFilterConverter> {
@Override
public void writeObject(ObjectOutput output, JPAProtobufCacheEventFilterConverter object) throws IOException {
output.writeObject(object.filterAndConverter);
}
@Override
public JPAProtobufCacheEventFilterConverter readObject(ObjectInput input) throws IOException, ClassNotFoundException {
JPAFilterAndConverter filterAndConverter = (JPAFilterAndConverter) input.readObject();
return new JPAProtobufCacheEventFilterConverter(filterAndConverter);
}
@Override
public Integer getId() {
return ExternalizerIds.JPA_PROTOBUF_CACHE_EVENT_FILTER_CONVERTER;
}
@Override
public Set<Class<? extends JPAProtobufCacheEventFilterConverter>> getTypeClasses() {
return Collections.singleton(JPAProtobufCacheEventFilterConverter.class);
}
}
}