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; 18 19 import static com.google.common.base.Charsets.UTF_8; 20 21 import com.google.common.io.ByteStreams; 22 import java.io.ByteArrayInputStream; 23 import java.io.IOException; 24 import java.io.InputStream; 25 26 /** Marshalls UTF-8 encoded strings. */ 27 public class StringMarshaller implements MethodDescriptor.Marshaller<String> { 28 public static StringMarshaller INSTANCE = new StringMarshaller(); 29 30 @Override stream(String value)31 public InputStream stream(String value) { 32 return new ByteArrayInputStream(value.getBytes(UTF_8)); 33 } 34 35 @Override parse(InputStream stream)36 public String parse(InputStream stream) { 37 try { 38 return new String(ByteStreams.toByteArray(stream), UTF_8); 39 } catch (IOException ex) { 40 throw new RuntimeException(ex); 41 } 42 } 43 } 44