1 /* 2 * Copyright 2015 The gRPC Authors 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package io.grpc.internal; 18 19 import io.grpc.Attributes; 20 import io.grpc.Compressor; 21 import io.grpc.Deadline; 22 import io.grpc.DecompressorRegistry; 23 import io.grpc.Status; 24 import java.io.InputStream; 25 import javax.annotation.Nonnull; 26 27 /** 28 * An implementation of {@link ClientStream} that silently does nothing for the operations. 29 */ 30 public class NoopClientStream implements ClientStream { 31 public static final NoopClientStream INSTANCE = new NoopClientStream(); 32 33 @Override setAuthority(String authority)34 public void setAuthority(String authority) {} 35 36 @Override start(ClientStreamListener listener)37 public void start(ClientStreamListener listener) {} 38 39 @Override getAttributes()40 public Attributes getAttributes() { 41 return Attributes.EMPTY; 42 } 43 44 @Override request(int numMessages)45 public void request(int numMessages) {} 46 47 @Override writeMessage(InputStream message)48 public void writeMessage(InputStream message) {} 49 50 @Override flush()51 public void flush() {} 52 53 @Override isReady()54 public boolean isReady() { 55 return false; 56 } 57 58 @Override cancel(Status status)59 public void cancel(Status status) {} 60 61 @Override halfClose()62 public void halfClose() {} 63 64 @Override setMessageCompression(boolean enable)65 public void setMessageCompression(boolean enable) { 66 // noop 67 } 68 69 @Override setCompressor(Compressor compressor)70 public void setCompressor(Compressor compressor) {} 71 72 @Override setFullStreamDecompression(boolean fullStreamDecompression)73 public void setFullStreamDecompression(boolean fullStreamDecompression) {} 74 75 @Override setDecompressorRegistry(DecompressorRegistry decompressorRegistry)76 public void setDecompressorRegistry(DecompressorRegistry decompressorRegistry) {} 77 78 @Override setMaxInboundMessageSize(int maxSize)79 public void setMaxInboundMessageSize(int maxSize) {} 80 81 @Override setMaxOutboundMessageSize(int maxSize)82 public void setMaxOutboundMessageSize(int maxSize) {} 83 84 @Override setDeadline(@onnull Deadline deadline)85 public void setDeadline(@Nonnull Deadline deadline) {} 86 } 87