Examples of org.apache.hadoop.hbase.client.HTableInterface.coprocessorService()

Class org.apache.hadoop.hbase.client.HTableInterface

Examples of org.apache.hadoop.hbase.client.HTableInterface.coprocessorService()

org.apache.hadoop.hbase.client.HTableInterface.coprocessorService()
Creates and returns a {@link com.google.protobuf.RpcChannel} instance connected to thetable region containing the specified row. The row given does not actually have to exist. Whichever region would contain the row based on start and end keys will be used. Note that the {@code row} parameter is also not passed to thecoprocessor handler registered for this protocol, unless the {@code row}is separately passed as an argument in the service request. The parameter here is only used to locate the region used to handle the call.
The obtained {@link com.google.protobuf.RpcChannel} instance can be used to access a publishedcoprocessor {@link com.google.protobuf.Service} using standard protobuf service invocations:
```
 CoprocessorRpcChannel channel = myTable.coprocessorService(rowkey); MyService.BlockingInterface service = MyService.newBlockingStub(channel); MyCallRequest request = MyCallRequest.newBuilder() ... .build(); MyCallResponse response = service.myCall(null, request); 
```
@param row The row key used to identify the remote region location @return A CoprocessorRpcChannel instance

                }
            }


            HTableInterface ht = this.getTable(PhoenixDatabaseMetaData.SYSTEM_CATALOG_NAME_BYTES);
            final Map<byte[], Long> results =
                    ht.coprocessorService(MetaDataService.class, null, null, new Batch.Call<MetaDataService,Long>() {
                        @Override
                        public Long call(MetaDataService instance) throws IOException {
                            ServerRpcController controller = new ServerRpcController();
                            BlockingRpcCallback<GetVersionResponse> rpcCallback =
                                    new BlockingRpcCallback<GetVersionResponse>();

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                        tableKey);
                }


                HTableInterface ht = this.getTable(PhoenixDatabaseMetaData.SYSTEM_CATALOG_NAME_BYTES);
                final Map<byte[], MetaDataResponse> results =
                        ht.coprocessorService(MetaDataService.class, tableKey, tableKey, callable);
                
                assert(results.size() == 1);
                MetaDataResponse result = results.values().iterator().next();
                if (result.getReturnCode() == MetaDataProtos.MutationCode.TABLE_NOT_IN_REGION) {
                    if (retried) return MetaDataMutationResult.constructFromProto(result);

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    protected void clearCache() throws SQLException {
        try {
            SQLException sqlE = null;
            HTableInterface htable = this.getTable(PhoenixDatabaseMetaData.SYSTEM_CATALOG_NAME_BYTES);
            try {
                htable.coprocessorService(MetaDataService.class, HConstants.EMPTY_START_ROW,
                        HConstants.EMPTY_END_ROW, new Batch.Call<MetaDataService, ClearCacheResponse>() {
                    @Override
                    public ClearCacheResponse call(MetaDataService instance) throws IOException {
                        ServerRpcController controller = new ServerRpcController();
                        BlockingRpcCallback<ClearCacheResponse> rpcCallback =

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                Put put = new Put(indexTableKey);
                put.add(PhoenixDatabaseMetaData.TABLE_FAMILY_BYTES, PhoenixDatabaseMetaData.INDEX_STATE_BYTES, PIndexState.DISABLE.getSerializedBytes());
                final List<Mutation> tableMetadata = Collections.<Mutation>singletonList(put);
                
                final Map<byte[], MetaDataResponse> results = 
                        systemTable.coprocessorService(MetaDataService.class, indexTableKey, indexTableKey,
                            new Batch.Call<MetaDataService, MetaDataResponse>() {
                                @Override
                                public MetaDataResponse call(MetaDataService instance) throws IOException {
                                    ServerRpcController controller = new ServerRpcController();
                                    BlockingRpcCallback<MetaDataResponse> rpcCallback =

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