001/* 002 * Licensed under the Apache License, Version 2.0 (the "License"); 003 * you may not use this file except in compliance with the License. 004 * You may obtain a copy of the License at 005 * 006 * http://www.apache.org/licenses/LICENSE-2.0 007 * 008 * Unless required by applicable law or agreed to in writing, software 009 * distributed under the License is distributed on an "AS IS" BASIS, 010 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 011 * See the License for the specific language governing permissions and 012 * limitations under the License. 013 */ 014package org.gbif.ws.converter; 015 016import java.io.IOException; 017import java.io.InputStream; 018import java.io.OutputStream; 019import java.nio.charset.StandardCharsets; 020import java.util.Scanner; 021import java.util.UUID; 022 023import org.springframework.http.HttpInputMessage; 024import org.springframework.http.HttpOutputMessage; 025import org.springframework.http.MediaType; 026import org.springframework.http.converter.AbstractHttpMessageConverter; 027 028public class UuidTextMessageConverter extends AbstractHttpMessageConverter<UUID> { 029 030 public UuidTextMessageConverter() { 031 super(MediaType.TEXT_PLAIN); 032 } 033 034 @Override 035 protected boolean supports(Class<?> clazz) { 036 return UUID.class.isAssignableFrom(clazz); 037 } 038 039 @Override 040 protected UUID readInternal(Class<? extends UUID> clazz, HttpInputMessage inputMessage) 041 throws IOException { 042 final String requestBody = toString(inputMessage.getBody()); 043 044 return UUID.fromString(requestBody); 045 } 046 047 @Override 048 protected void writeInternal(UUID uuid, HttpOutputMessage outputMessage) throws IOException { 049 try (OutputStream os = outputMessage.getBody()) { 050 os.write(uuid.toString().getBytes(StandardCharsets.UTF_8)); 051 } 052 } 053 054 /** '\A' matches the beginning of a string (but not an internal line). */ 055 private static String toString(InputStream inputStream) { 056 final Scanner scanner = new Scanner(inputStream, StandardCharsets.UTF_8.name()); 057 return scanner.useDelimiter("\\A").next(); 058 } 059}