HBASE-6787 Convert RowProcessorProtocol to protocol buffer service (Devaraj)

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1412356 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Zhihong Yu 2012-11-21 23:11:54 +00:00
parent 4442800016
commit ed9218145f
14 changed files with 2362 additions and 120 deletions

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@ -0,0 +1,667 @@
// Generated by the protocol buffer compiler. DO NOT EDIT!
// source: MultiRowMutationProcessorMessages.proto
package org.apache.hadoop.hbase.protobuf.generated;
public final class MultiRowMutationProcessorProtos {
private MultiRowMutationProcessorProtos() {}
public static void registerAllExtensions(
com.google.protobuf.ExtensionRegistry registry) {
}
public interface MultiRowMutationProcessorRequestOrBuilder
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public static final class MultiRowMutationProcessorRequest extends
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public static org.apache.hadoop.hbase.protobuf.generated.MultiRowMutationProcessorProtos.MultiRowMutationProcessorRequest parseFrom(
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public static org.apache.hadoop.hbase.protobuf.generated.MultiRowMutationProcessorProtos.MultiRowMutationProcessorRequest parseFrom(
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com.google.protobuf.ExtensionRegistryLite extensionRegistry)
throws java.io.IOException {
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throws com.google.protobuf.InvalidProtocolBufferException {
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@ -0,0 +1,32 @@
/**
* 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.
*/
/**
* Defines a protocol to perform multi row transactions.
* See BaseRowProcessorEndpoint for the implementation.
* See HRegion#processRowsWithLocks() for details.
*/
option java_package = "org.apache.hadoop.hbase.protobuf.generated";
option java_outer_classname = "MultiRowMutationProcessorProtos";
option java_generate_equals_and_hash = true;
option optimize_for = SPEED;
message MultiRowMutationProcessorRequest{
}
message MultiRowMutationProcessorResponse{
}

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@ -0,0 +1,41 @@
/**
* 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.
*/
/**
* Defines a protocol to perform multi row transactions.
* See BaseRowProcessorEndpoint for the implementation.
* See HRegion#processRowsWithLocks() for details.
*/
option java_package = "org.apache.hadoop.hbase.protobuf.generated";
option java_outer_classname = "RowProcessorProtos";
option java_generic_services = true;
option java_generate_equals_and_hash = true;
option optimize_for = SPEED;
message RowProcessorRequest {
required string rowProcessorClassName = 1;
optional string rowProcessorInitializerMessageName = 2;
optional bytes rowProcessorInitializerMessage = 3;
}
message RowProcessorResult {
required bytes rowProcessorResult = 1;
}
service RowProcessorService {
rpc process (RowProcessorRequest) returns (RowProcessorResult);
}

View File

@ -678,9 +678,10 @@ public class AggregationClient {
final AggregateArgument.Builder requestBuilder =
AggregateArgument.newBuilder();
requestBuilder.setInterpreterClassName(ci.getClass().getCanonicalName());
if (ci.columnInterpreterSpecificData() != null) {
requestBuilder.setInterpreterSpecificBytes(
ci.columnInterpreterSpecificData());
ByteString columnInterpreterSpecificData = null;
if ((columnInterpreterSpecificData = ci.columnInterpreterSpecificData())
!= null) {
requestBuilder.setInterpreterSpecificBytes(columnInterpreterSpecificData);
}
requestBuilder.setScan(ProtobufUtil.toScan(scan));
return requestBuilder.build();

View File

@ -1,4 +1,4 @@
/**
/*
* 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
@ -15,27 +15,36 @@
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.hadoop.hbase.coprocessor;
package org.apache.hadoop.hbase.client.coprocessor;
import java.io.IOException;
import org.apache.hadoop.classification.InterfaceAudience;
import org.apache.hadoop.classification.InterfaceStability;
import org.apache.hadoop.hbase.ipc.CoprocessorProtocol;
import org.apache.hadoop.hbase.regionserver.HRegion;
import org.apache.hadoop.hbase.protobuf.generated.RowProcessorProtos.RowProcessorRequest;
import org.apache.hadoop.hbase.regionserver.RowProcessor;
import com.google.protobuf.Message;
/**
* Defines a protocol to perform multi row transactions.
* See {@link BaseRowProcessorEndpoint} for the implementation.
* See {@link HRegion#processRowsWithLocks()} for detials.
* Convenience class that is used to make RowProcessorEndpoint invocations.
* For example usage, refer TestRowProcessorEndpoint
*
*/
@InterfaceAudience.Public
@InterfaceStability.Evolving
public interface RowProcessorProtocol extends CoprocessorProtocol {
/**
* @param processor The processor defines how to process the row
*/
<T> T process(RowProcessor<T> processor) throws IOException;
public class RowProcessorClient {
public static <S extends Message, T extends Message>
RowProcessorRequest getRowProcessorPB(RowProcessor<S,T> r)
throws IOException {
final RowProcessorRequest.Builder requestBuilder =
RowProcessorRequest.newBuilder();
requestBuilder.setRowProcessorClassName(r.getClass().getName());
S s = r.getRequestData();
if (s != null) {
requestBuilder.setRowProcessorInitializerMessageName(s.getClass().getName());
requestBuilder.setRowProcessorInitializerMessage(s.toByteString());
}
return requestBuilder.build();
}
}

View File

@ -18,21 +18,35 @@
package org.apache.hadoop.hbase.coprocessor;
import java.io.IOException;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import org.apache.hadoop.classification.InterfaceAudience;
import org.apache.hadoop.classification.InterfaceStability;
import org.apache.hadoop.hbase.Coprocessor;
import org.apache.hadoop.hbase.CoprocessorEnvironment;
import org.apache.hadoop.hbase.protobuf.ResponseConverter;
import org.apache.hadoop.hbase.protobuf.generated.RowProcessorProtos.RowProcessorRequest;
import org.apache.hadoop.hbase.protobuf.generated.RowProcessorProtos.RowProcessorResult;
import org.apache.hadoop.hbase.protobuf.generated.RowProcessorProtos.RowProcessorService;
import org.apache.hadoop.hbase.regionserver.HRegion;
import org.apache.hadoop.hbase.regionserver.RowProcessor;
import com.google.protobuf.ByteString;
import com.google.protobuf.Message;
import com.google.protobuf.RpcCallback;
import com.google.protobuf.RpcController;
import com.google.protobuf.Service;
/**
* This class demonstrates how to implement atomic read-modify-writes
* using {@link HRegion#processRowsWithLocks()} and Coprocessor endpoints.
*/
@InterfaceAudience.Public
@InterfaceStability.Evolving
public abstract class BaseRowProcessorEndpoint extends BaseEndpointCoprocessor
implements RowProcessorProtocol {
public abstract class BaseRowProcessorEndpoint<S extends Message, T extends Message>
extends RowProcessorService implements CoprocessorService, Coprocessor {
private RegionCoprocessorEnvironment env;
/**
* Pass a processor to HRegion to process multiple rows atomically.
*
@ -42,16 +56,93 @@ public abstract class BaseRowProcessorEndpoint extends BaseEndpointCoprocessor
*
* See {@link TestRowProcessorEndpoint} for example.
*
* @param processor The object defines the read-modify-write procedure
* @return The processing result
* The request contains information for constructing processor
* (see {@link #constructRowProcessorFromRequest}. The processor object defines
* the read-modify-write procedure.
*/
@Override
public <T> T process(RowProcessor<T> processor)
throws IOException {
HRegion region =
((RegionCoprocessorEnvironment) getEnvironment()).getRegion();
public void process(RpcController controller, RowProcessorRequest request,
RpcCallback<RowProcessorResult> done) {
RowProcessorResult resultProto = null;
try {
RowProcessor<S,T> processor = constructRowProcessorFromRequest(request);
HRegion region = env.getRegion();
region.processRowsWithLocks(processor);
return processor.getResult();
T result = processor.getResult();
RowProcessorResult.Builder b = RowProcessorResult.newBuilder();
b.setRowProcessorResult(result.toByteString());
resultProto = b.build();
} catch (Exception e) {
ResponseConverter.setControllerException(controller, new IOException(e));
}
done.run(resultProto);
}
@Override
public Service getService() {
return this;
}
/**
* Stores a reference to the coprocessor environment provided by the
* {@link org.apache.hadoop.hbase.regionserver.RegionCoprocessorHost} from the region where this
* coprocessor is loaded. Since this is a coprocessor endpoint, it always expects to be loaded
* on a table region, so always expects this to be an instance of
* {@link RegionCoprocessorEnvironment}.
* @param env the environment provided by the coprocessor host
* @throws IOException if the provided environment is not an instance of
* {@code RegionCoprocessorEnvironment}
*/
@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 env) throws IOException {
// nothing to do
}
@SuppressWarnings("unchecked")
RowProcessor<S,T> constructRowProcessorFromRequest(RowProcessorRequest request)
throws IOException {
String className = request.getRowProcessorClassName();
Class<?> cls;
try {
cls = Class.forName(className);
RowProcessor<S,T> ci = (RowProcessor<S,T>) cls.newInstance();
if (request.hasRowProcessorInitializerMessageName()) {
Class<?> imn = Class.forName(request.getRowProcessorInitializerMessageName())
.asSubclass(Message.class);
Method m;
try {
m = imn.getMethod("parseFrom", ByteString.class);
} catch (SecurityException e) {
throw new IOException(e);
} catch (NoSuchMethodException e) {
throw new IOException(e);
}
S s;
try {
s = (S)m.invoke(null,request.getRowProcessorInitializerMessage());
} catch (IllegalArgumentException e) {
throw new IOException(e);
} catch (InvocationTargetException e) {
throw new IOException(e);
}
ci.initialize(s);
}
return ci;
} catch (ClassNotFoundException e) {
throw new IOException(e);
} catch (InstantiationException e) {
throw new IOException(e);
} catch (IllegalAccessException e) {
throw new IOException(e);
}
}
}

View File

@ -119,7 +119,7 @@ public interface ColumnInterpreter<T, S> {
/**
* This method should return any additional data that is needed on the
* server side to construct the ColumnInterpreter. The server
* will pass this to the {@link #initialize(org.apache.hadoop.hbase.protobuf.generated.AggregateProtos.ColumnInterpreter)}
* will pass this to the {@link #initialize(ByteString)}
* method. If there is no ColumnInterpreter specific data (for e.g.,
* {@link LongColumnInterpreter}) then null should be returned.
* @return the PB message

View File

@ -23,15 +23,13 @@ import java.util.UUID;
import org.apache.hadoop.hbase.HConstants;
import org.apache.hadoop.hbase.regionserver.wal.WALEdit;
import com.google.protobuf.Message;
/**
* Base class for RowProcessor with some default implementations.
*/
public abstract class BaseRowProcessor<T> implements RowProcessor<T> {
@Override
public T getResult() {
return null;
}
public abstract class BaseRowProcessor<S extends Message,T extends Message>
implements RowProcessor<S,T> {
@Override
public void preProcess(HRegion region, WALEdit walEdit) throws IOException {

View File

@ -4302,7 +4302,7 @@ public class HRegion implements HeapSize { // , Writable{
*
* @param processor The object defines the reads and writes to a row.
*/
public void processRowsWithLocks(RowProcessor<?> processor)
public void processRowsWithLocks(RowProcessor<?,?> processor)
throws IOException {
processRowsWithLocks(processor, rowProcessorTimeout);
}
@ -4314,7 +4314,7 @@ public class HRegion implements HeapSize { // , Writable{
* @param timeout The timeout of the processor.process() execution
* Use a negative number to switch off the time bound
*/
public void processRowsWithLocks(RowProcessor<?> processor, long timeout)
public void processRowsWithLocks(RowProcessor<?,?> processor, long timeout)
throws IOException {
for (byte[] row : processor.getRowsToLock()) {
@ -4453,7 +4453,7 @@ public class HRegion implements HeapSize { // , Writable{
}
}
private void doProcessRowWithTimeout(final RowProcessor<?> processor,
private void doProcessRowWithTimeout(final RowProcessor<?,?> processor,
final long now,
final HRegion region,
final List<KeyValue> mutations,

View File

@ -27,13 +27,16 @@ import org.apache.hadoop.hbase.KeyValue;
import org.apache.hadoop.hbase.client.Delete;
import org.apache.hadoop.hbase.client.Mutation;
import org.apache.hadoop.hbase.client.Put;
import org.apache.hadoop.hbase.protobuf.generated.MultiRowMutationProcessorProtos.MultiRowMutationProcessorRequest;
import org.apache.hadoop.hbase.protobuf.generated.MultiRowMutationProcessorProtos.MultiRowMutationProcessorResponse;
import org.apache.hadoop.hbase.regionserver.wal.WALEdit;
import org.apache.hadoop.hbase.util.Bytes;
/**
* A <code>MultiRowProcessor</code> that performs multiple puts and deletes.
*/
class MultiRowMutationProcessor extends BaseRowProcessor<Void> {
class MultiRowMutationProcessor extends BaseRowProcessor<MultiRowMutationProcessorRequest,
MultiRowMutationProcessorResponse> {
Collection<byte[]> rowsToLock;
Collection<Mutation> mutations;
@ -53,6 +56,11 @@ class MultiRowMutationProcessor extends BaseRowProcessor<Void> {
return false;
}
@Override
public MultiRowMutationProcessorResponse getResult() {
return MultiRowMutationProcessorResponse.getDefaultInstance();
}
@Override
public void process(long now,
HRegion region,
@ -123,4 +131,13 @@ class MultiRowMutationProcessor extends BaseRowProcessor<Void> {
}
}
@Override
public MultiRowMutationProcessorRequest getRequestData() {
return MultiRowMutationProcessorRequest.getDefaultInstance();
}
@Override
public void initialize(MultiRowMutationProcessorRequest msg) {
//nothing
}
}

View File

@ -27,6 +27,9 @@ import org.apache.hadoop.classification.InterfaceStability;
import org.apache.hadoop.hbase.KeyValue;
import org.apache.hadoop.hbase.regionserver.wal.WALEdit;
import com.google.protobuf.ByteString;
import com.google.protobuf.Message;
@InterfaceAudience.Public
@InterfaceStability.Evolving
@ -38,10 +41,12 @@ import org.apache.hadoop.hbase.regionserver.wal.WALEdit;
* This class performs scans and generates mutations and WAL edits.
* The locks and MVCC will be handled by HRegion.
*
* The generic type parameter T is the return type of
* RowProcessor.getResult().
* The RowProcessor user code could have data that needs to be
* sent across for proper initialization at the server side. The generic type
* parameter S is the type of the request data sent to the server.
* The generic type parameter T is the return type of RowProcessor.getResult().
*/
public interface RowProcessor<T> {
public interface RowProcessor<S extends Message, T extends Message> {
/**
* Rows to lock while operation.
@ -51,7 +56,9 @@ public interface RowProcessor<T> {
Collection<byte[]> getRowsToLock();
/**
* Obtain the processing result
* Obtain the processing result. All row processor implementations must
* implement this, even if the method is simply returning an empty
* Message.
*/
T getResult();
@ -108,4 +115,22 @@ public interface RowProcessor<T> {
* @return The name of the processor
*/
String getName();
/**
* This method should return any additional data that is needed on the
* server side to construct the RowProcessor. The server will pass this to
* the {@link #initialize(ByteString)} method. If there is no RowProcessor
* specific data then null should be returned.
* @return the PB message
* @throws IOException
*/
S getRequestData() throws IOException;
/**
* This method should initialize any field(s) of the RowProcessor with
* a parsing of the passed message bytes (used on the server side).
* @param msg
* @throws IOException
*/
void initialize(S msg) throws IOException;
}

View File

@ -21,8 +21,6 @@ package org.apache.hadoop.hbase.coprocessor;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
import java.io.DataInput;
import java.io.DataOutput;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Arrays;
@ -38,27 +36,39 @@ import org.apache.hadoop.hbase.MediumTests;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hbase.HBaseTestingUtility;
import org.apache.hadoop.hbase.KeyValue;
import org.apache.hadoop.hbase.SmallTests;
import org.apache.hadoop.hbase.client.Get;
import org.apache.hadoop.hbase.client.HTable;
import org.apache.hadoop.hbase.client.IsolationLevel;
import org.apache.hadoop.hbase.client.Put;
import org.apache.hadoop.hbase.client.Scan;
import org.apache.hadoop.hbase.client.coprocessor.RowProcessorClient;
import org.apache.hadoop.hbase.ipc.CoprocessorRpcChannel;
import org.apache.hadoop.hbase.coprocessor.protobuf.generated.IncrementCounterProcessorTestProtos;
import org.apache.hadoop.hbase.coprocessor.protobuf.generated.IncrementCounterProcessorTestProtos.FriendsOfFriendsProcessorRequest;
import org.apache.hadoop.hbase.coprocessor.protobuf.generated.IncrementCounterProcessorTestProtos.FriendsOfFriendsProcessorResponse;
import org.apache.hadoop.hbase.coprocessor.protobuf.generated.IncrementCounterProcessorTestProtos.IncCounterProcessorResponse;
import org.apache.hadoop.hbase.coprocessor.protobuf.generated.IncrementCounterProcessorTestProtos.IncCounterProcessorRequest;
import org.apache.hadoop.hbase.coprocessor.protobuf.generated.IncrementCounterProcessorTestProtos.RowSwapProcessorRequest;
import org.apache.hadoop.hbase.coprocessor.protobuf.generated.IncrementCounterProcessorTestProtos.RowSwapProcessorResponse;
import org.apache.hadoop.hbase.coprocessor.protobuf.generated.IncrementCounterProcessorTestProtos.TimeoutProcessorRequest;
import org.apache.hadoop.hbase.coprocessor.protobuf.generated.IncrementCounterProcessorTestProtos.TimeoutProcessorResponse;
import org.apache.hadoop.hbase.protobuf.generated.RowProcessorProtos.RowProcessorRequest;
import org.apache.hadoop.hbase.protobuf.generated.RowProcessorProtos.RowProcessorResult;
import org.apache.hadoop.hbase.protobuf.generated.RowProcessorProtos.RowProcessorService;
import org.apache.hadoop.hbase.regionserver.BaseRowProcessor;
import org.apache.hadoop.hbase.regionserver.HRegion;
import org.apache.hadoop.hbase.regionserver.InternalScanner;
import org.apache.hadoop.hbase.regionserver.wal.HLog;
import org.apache.hadoop.hbase.regionserver.wal.HLogUtil;
import org.apache.hadoop.hbase.regionserver.wal.WALEdit;
import org.apache.hadoop.hbase.util.Bytes;
import org.apache.hadoop.io.Text;
import org.apache.hadoop.io.Writable;
import org.junit.AfterClass;
import org.junit.BeforeClass;
import org.junit.Test;
import org.junit.experimental.categories.Category;
import com.google.protobuf.ByteString;
import com.google.protobuf.Message;
import com.sun.org.apache.commons.logging.Log;
import com.sun.org.apache.commons.logging.LogFactory;
@ -100,7 +110,7 @@ public class TestRowProcessorEndpoint {
@BeforeClass
public static void setupBeforeClass() throws Exception {
Configuration conf = util.getConfiguration();
conf.set(CoprocessorHost.REGION_COPROCESSOR_CONF_KEY,
conf.setStrings(CoprocessorHost.REGION_COPROCESSOR_CONF_KEY,
RowProcessorEndpoint.class.getName());
conf.setInt("hbase.client.retries.number", 1);
conf.setLong("hbase.hregion.row.processor.timeout", 1000L);
@ -138,12 +148,18 @@ public class TestRowProcessorEndpoint {
@Test
public void testDoubleScan() throws Throwable {
prepareTestData();
RowProcessorProtocol protocol =
table.coprocessorProxy(RowProcessorProtocol.class, ROW);
CoprocessorRpcChannel channel = table.coprocessorService(ROW);
RowProcessorEndpoint.FriendsOfFriendsProcessor processor =
new RowProcessorEndpoint.FriendsOfFriendsProcessor(ROW, A);
Set<String> result = protocol.process(processor);
RowProcessorService.BlockingInterface service =
RowProcessorService.newBlockingStub(channel);
RowProcessorRequest request = RowProcessorClient.getRowProcessorPB(processor);
RowProcessorResult protoResult = service.process(null, request);
FriendsOfFriendsProcessorResponse response =
FriendsOfFriendsProcessorResponse.parseFrom(protoResult.getRowProcessorResult());
Set<String> result = new HashSet<String>();
result.addAll(response.getResultList());
Set<String> expected =
new HashSet<String>(Arrays.asList(new String[]{"d", "e", "f", "g"}));
Get get = new Get(ROW);
@ -176,12 +192,17 @@ public class TestRowProcessorEndpoint {
}
private int incrementCounter(HTable table) throws Throwable {
RowProcessorProtocol protocol =
table.coprocessorProxy(RowProcessorProtocol.class, ROW);
CoprocessorRpcChannel channel = table.coprocessorService(ROW);
RowProcessorEndpoint.IncrementCounterProcessor processor =
new RowProcessorEndpoint.IncrementCounterProcessor(ROW);
int counterValue = protocol.process(processor);
return counterValue;
RowProcessorService.BlockingInterface service =
RowProcessorService.newBlockingStub(channel);
RowProcessorRequest request = RowProcessorClient.getRowProcessorPB(processor);
RowProcessorResult protoResult = service.process(null, request);
IncCounterProcessorResponse response = IncCounterProcessorResponse
.parseFrom(protoResult.getRowProcessorResult());
Integer result = response.getResponse();
return result;
}
private void concurrentExec(
@ -234,23 +255,27 @@ public class TestRowProcessorEndpoint {
}
private void swapRows(HTable table) throws Throwable {
RowProcessorProtocol protocol =
table.coprocessorProxy(RowProcessorProtocol.class, ROW);
CoprocessorRpcChannel channel = table.coprocessorService(ROW);
RowProcessorEndpoint.RowSwapProcessor processor =
new RowProcessorEndpoint.RowSwapProcessor(ROW, ROW2);
protocol.process(processor);
RowProcessorService.BlockingInterface service =
RowProcessorService.newBlockingStub(channel);
RowProcessorRequest request = RowProcessorClient.getRowProcessorPB(processor);
service.process(null, request);
}
@Test
public void testTimeout() throws Throwable {
prepareTestData();
RowProcessorProtocol protocol =
table.coprocessorProxy(RowProcessorProtocol.class, ROW);
CoprocessorRpcChannel channel = table.coprocessorService(ROW);
RowProcessorEndpoint.TimeoutProcessor processor =
new RowProcessorEndpoint.TimeoutProcessor(ROW);
RowProcessorService.BlockingInterface service =
RowProcessorService.newBlockingStub(channel);
RowProcessorRequest request = RowProcessorClient.getRowProcessorPB(processor);
boolean exceptionCaught = false;
try {
protocol.process(processor);
service.process(null, request);
} catch (Exception e) {
exceptionCaught = true;
}
@ -264,11 +289,11 @@ public class TestRowProcessorEndpoint {
* We define the RowProcessors as the inner class of the endpoint.
* So they can be loaded with the endpoint on the coprocessor.
*/
public static class RowProcessorEndpoint extends BaseRowProcessorEndpoint
implements RowProcessorProtocol {
public static class RowProcessorEndpoint<S extends Message,T extends Message>
extends BaseRowProcessorEndpoint<S,T> implements CoprocessorService {
public static class IncrementCounterProcessor extends
BaseRowProcessor<Integer> implements Writable {
BaseRowProcessor<IncrementCounterProcessorTestProtos.IncCounterProcessorRequest,
IncrementCounterProcessorTestProtos.IncCounterProcessorResponse> {
int counter = 0;
byte[] row = new byte[0];
@ -288,8 +313,10 @@ public class TestRowProcessorEndpoint {
}
@Override
public Integer getResult() {
return counter;
public IncCounterProcessorResponse getResult() {
IncCounterProcessorResponse.Builder i = IncCounterProcessorResponse.newBuilder();
i.setResponse(counter);
return i.build();
}
@Override
@ -330,21 +357,22 @@ public class TestRowProcessorEndpoint {
}
@Override
public void readFields(DataInput in) throws IOException {
this.row = Bytes.readByteArray(in);
this.counter = in.readInt();
public IncCounterProcessorRequest getRequestData() throws IOException {
IncCounterProcessorRequest.Builder builder = IncCounterProcessorRequest.newBuilder();
builder.setCounter(counter);
builder.setRow(ByteString.copyFrom(row));
return builder.build();
}
@Override
public void write(DataOutput out) throws IOException {
Bytes.writeByteArray(out, row);
out.writeInt(counter);
public void initialize(IncCounterProcessorRequest msg) {
this.row = msg.getRow().toByteArray();
this.counter = msg.getCounter();
}
}
public static class FriendsOfFriendsProcessor extends
BaseRowProcessor<Set<String>> implements Writable {
BaseRowProcessor<FriendsOfFriendsProcessorRequest, FriendsOfFriendsProcessorResponse> {
byte[] row = null;
byte[] person = null;
final Set<String> result = new HashSet<String>();
@ -366,8 +394,11 @@ public class TestRowProcessorEndpoint {
}
@Override
public Set<String> getResult() {
return result;
public FriendsOfFriendsProcessorResponse getResult() {
FriendsOfFriendsProcessorResponse.Builder builder =
FriendsOfFriendsProcessorResponse.newBuilder();
builder.addAllResult(result);
return builder.build();
}
@Override
@ -405,29 +436,28 @@ public class TestRowProcessorEndpoint {
}
@Override
public void readFields(DataInput in) throws IOException {
this.person = Bytes.readByteArray(in);
this.row = Bytes.readByteArray(in);
int size = in.readInt();
result.clear();
for (int i = 0; i < size; ++i) {
result.add(Text.readString(in));
}
public FriendsOfFriendsProcessorRequest getRequestData() throws IOException {
FriendsOfFriendsProcessorRequest.Builder builder =
FriendsOfFriendsProcessorRequest.newBuilder();
builder.setPerson(ByteString.copyFrom(person));
builder.setRow(ByteString.copyFrom(row));
builder.addAllResult(result);
FriendsOfFriendsProcessorRequest f = builder.build();
return f;
}
@Override
public void write(DataOutput out) throws IOException {
Bytes.writeByteArray(out, person);
Bytes.writeByteArray(out, row);
out.writeInt(result.size());
for (String s : result) {
Text.writeString(out, s);
}
public void initialize(FriendsOfFriendsProcessorRequest request)
throws IOException {
this.person = request.getPerson().toByteArray();
this.row = request.getRow().toByteArray();
result.clear();
result.addAll(request.getResultList());
}
}
public static class RowSwapProcessor extends
BaseRowProcessor<Set<String>> implements Writable {
BaseRowProcessor<RowSwapProcessorRequest, RowSwapProcessorResponse> {
byte[] row1 = new byte[0];
byte[] row2 = new byte[0];
@ -455,6 +485,11 @@ public class TestRowProcessorEndpoint {
return false;
}
@Override
public RowSwapProcessorResponse getResult() {
return RowSwapProcessorResponse.getDefaultInstance();
}
@Override
public void process(long now, HRegion region,
List<KeyValue> mutations, WALEdit walEdit) throws IOException {
@ -501,26 +536,28 @@ public class TestRowProcessorEndpoint {
}
}
@Override
public void readFields(DataInput in) throws IOException {
this.row1 = Bytes.readByteArray(in);
this.row2 = Bytes.readByteArray(in);
}
@Override
public void write(DataOutput out) throws IOException {
Bytes.writeByteArray(out, row1);
Bytes.writeByteArray(out, row2);
}
@Override
public String getName() {
return "swap";
}
@Override
public RowSwapProcessorRequest getRequestData() throws IOException {
RowSwapProcessorRequest.Builder builder = RowSwapProcessorRequest.newBuilder();
builder.setRow1(ByteString.copyFrom(row1));
builder.setRow2(ByteString.copyFrom(row2));
return builder.build();
}
@Override
public void initialize(RowSwapProcessorRequest msg) {
this.row1 = msg.getRow1().toByteArray();
this.row2 = msg.getRow2().toByteArray();
}
}
public static class TimeoutProcessor extends
BaseRowProcessor<Void> implements Writable {
BaseRowProcessor<TimeoutProcessorRequest, TimeoutProcessorResponse> {
byte[] row = new byte[0];
@ -538,6 +575,11 @@ public class TestRowProcessorEndpoint {
return Collections.singleton(row);
}
@Override
public TimeoutProcessorResponse getResult() {
return TimeoutProcessorResponse.getDefaultInstance();
}
@Override
public void process(long now, HRegion region,
List<KeyValue> mutations, WALEdit walEdit) throws IOException {
@ -554,20 +596,22 @@ public class TestRowProcessorEndpoint {
return true;
}
@Override
public void readFields(DataInput in) throws IOException {
this.row = Bytes.readByteArray(in);
}
@Override
public void write(DataOutput out) throws IOException {
Bytes.writeByteArray(out, row);
}
@Override
public String getName() {
return "timeout";
}
@Override
public TimeoutProcessorRequest getRequestData() throws IOException {
TimeoutProcessorRequest.Builder builder = TimeoutProcessorRequest.newBuilder();
builder.setRow(ByteString.copyFrom(row));
return builder.build();
}
@Override
public void initialize(TimeoutProcessorRequest msg) throws IOException {
this.row = msg.getRow().toByteArray();
}
}
public static void doScan(

View File

@ -0,0 +1,55 @@
/**
* 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.
*/
option java_package = "org.apache.hadoop.hbase.coprocessor.protobuf.generated";
option java_outer_classname = "IncrementCounterProcessorTestProtos";
option java_generate_equals_and_hash = true;
message IncCounterProcessorRequest {
required bytes row = 1;
required int32 counter = 2;
}
message IncCounterProcessorResponse {
required int32 response = 1;
}
message FriendsOfFriendsProcessorRequest {
required bytes person = 1;
required bytes row = 2;
repeated string result = 3;
}
message FriendsOfFriendsProcessorResponse {
repeated string result = 1;
}
message RowSwapProcessorRequest {
required bytes row1 = 1;
required bytes row2 = 2;
}
message RowSwapProcessorResponse {
}
message TimeoutProcessorRequest {
required bytes row = 1;
}
message TimeoutProcessorResponse {
}