1 /** 2 * Licensed to the Apache Software Foundation (ASF) under one 3 * or more contributor license agreements. See the NOTICE file 4 * distributed with this work for additional information 5 * regarding copyright ownership. The ASF licenses this file 6 * to you under the Apache License, Version 2.0 (the 7 * "License"); you may not use this file except in compliance 8 * with the License. You may obtain a copy of the License at 9 * 10 * http://www.apache.org/licenses/LICENSE-2.0 11 * 12 * Unless required by applicable law or agreed to in writing, software 13 * distributed under the License is distributed on an "AS IS" BASIS, 14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 15 * See the License for the specific language governing permissions and 16 * limitations under the License. 17 */ 18 package org.apache.hadoop.hbase.ipc; 19 20 21 public interface RpcCallContext extends Delayable { 22 /** 23 * Check if the caller who made this IPC call has disconnected. 24 * If called from outside the context of IPC, this does nothing. 25 * @return < 0 if the caller is still connected. The time in ms 26 * since the disconnection otherwise 27 */ 28 long disconnectSince(); 29 30 /** 31 * If the client connected and specified a codec to use, then we will use this codec making 32 * cellblocks to return. If the client did not specify a codec, we assume it does not support 33 * cellblocks and will return all content protobuf'd (though it makes our serving slower). 34 * We need to ask this question per call because a server could be hosting both clients that 35 * support cellblocks while fielding requests from clients that do not. 36 * @return True if the client supports cellblocks, else return all content in pb 37 */ 38 boolean isClientCellBlockSupport(); 39 }