/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.phoenix.coprocessor;
import java.io.IOException;
import java.sql.SQLException;
import org.apache.hadoop.hbase.Coprocessor;
import org.apache.hadoop.hbase.CoprocessorEnvironment;
import org.apache.hadoop.hbase.coprocessor.CoprocessorException;
import org.apache.hadoop.hbase.coprocessor.CoprocessorService;
import org.apache.hadoop.hbase.coprocessor.RegionCoprocessorEnvironment;
import org.apache.hadoop.hbase.io.ImmutableBytesWritable;
import org.apache.phoenix.cache.GlobalCache;
import org.apache.phoenix.cache.TenantCache;
import org.apache.phoenix.hbase.index.util.ImmutableBytesPtr;
import org.apache.phoenix.coprocessor.ServerCachingProtocol.ServerCacheFactory;
import org.apache.phoenix.coprocessor.generated.ServerCachingProtos.AddServerCacheRequest;
import org.apache.phoenix.coprocessor.generated.ServerCachingProtos.AddServerCacheResponse;
import org.apache.phoenix.coprocessor.generated.ServerCachingProtos.RemoveServerCacheRequest;
import org.apache.phoenix.coprocessor.generated.ServerCachingProtos.RemoveServerCacheResponse;
import org.apache.phoenix.coprocessor.generated.ServerCachingProtos.ServerCachingService;
import org.apache.phoenix.protobuf.ProtobufUtil;
import com.google.protobuf.RpcCallback;
import com.google.protobuf.RpcController;
import com.google.protobuf.Service;
/**
*
* Server-side implementation of {@link ServerCachingProtocol}
*
*
* @since 0.1
*/
public class ServerCachingEndpointImpl extends ServerCachingService implements CoprocessorService,
Coprocessor {
private RegionCoprocessorEnvironment env;
@Override
public void addServerCache(RpcController controller, AddServerCacheRequest request,
RpcCallback<AddServerCacheResponse> done) {
ImmutableBytesPtr tenantId = null;
if (request.hasTenantId()) {
tenantId = new ImmutableBytesPtr(request.getTenantId().toByteArray());
}
TenantCache tenantCache = GlobalCache.getTenantCache(this.env, tenantId);
ImmutableBytesWritable cachePtr =
org.apache.phoenix.protobuf.ProtobufUtil
.toImmutableBytesWritable(request.getCachePtr());
try {
@SuppressWarnings("unchecked")
Class<ServerCacheFactory> serverCacheFactoryClass =
(Class<ServerCacheFactory>) Class.forName(request.getCacheFactory().getClassName());
ServerCacheFactory cacheFactory = serverCacheFactoryClass.newInstance();
tenantCache.addServerCache(new ImmutableBytesPtr(request.getCacheId().toByteArray()),
cachePtr, cacheFactory);
} catch (Throwable e) {
ProtobufUtil.setControllerException(controller, new IOException(e));
}
AddServerCacheResponse.Builder responseBuilder = AddServerCacheResponse.newBuilder();
responseBuilder.setReturn(true);
AddServerCacheResponse result = responseBuilder.build();
done.run(result);
}
@Override
public void removeServerCache(RpcController controller, RemoveServerCacheRequest request,
RpcCallback<RemoveServerCacheResponse> done) {
ImmutableBytesPtr tenantId = null;
if (request.hasTenantId()) {
tenantId = new ImmutableBytesPtr(request.getTenantId().toByteArray());
}
TenantCache tenantCache = GlobalCache.getTenantCache(this.env, tenantId);
try {
tenantCache.removeServerCache(new ImmutableBytesPtr(request.getCacheId().toByteArray()));
} catch (SQLException e) {
ProtobufUtil.setControllerException(controller, new IOException(e));
}
RemoveServerCacheResponse.Builder responseBuilder = RemoveServerCacheResponse.newBuilder();
responseBuilder.setReturn(true);
RemoveServerCacheResponse result = responseBuilder.build();
done.run(result);
}
@Override
public void start(CoprocessorEnvironment env) throws IOException {
if (env instanceof RegionCoprocessorEnvironment) {
this.env = (RegionCoprocessorEnvironment) env;
} else {
throw new CoprocessorException("Must be loaded on a table region!");
}
}
@Override
public void stop(CoprocessorEnvironment arg0) throws IOException {
// nothing to do
}
@Override
public Service getService() {
return this;
}
}