- Add iocMillis, iocNanos to default response

- Set correct response type
- Serialize byte[] as byte[] and not String

src/main/java/ch/psi/daq/queryrest/config/QueryRestConfig.java

@@ -41,6 +41,7 @@ import ch.psi.daq.query.model.QueryField;
 import ch.psi.daq.query.model.impl.AbstractQuery;
 import ch.psi.daq.queryrest.controller.validator.QueryValidator;
 import ch.psi.daq.queryrest.model.PropertyFilterMixin;
+import ch.psi.daq.queryrest.response.JsonByteArraySerializer;
 import ch.psi.daq.queryrest.response.JsonStreamSerializer;
 import ch.psi.daq.queryrest.response.ResponseStreamWriter;
 
@@ -75,14 +76,14 @@ public class QueryRestConfig extends WebMvcConfigurerAdapter {
     */
    @Override
    public void configureMessageConverters(List<HttpMessageConverter<?>> converters) {
-       final MappingJackson2HttpMessageConverter converter = new MappingJackson2HttpMessageConverter();
+      final MappingJackson2HttpMessageConverter converter = new MappingJackson2HttpMessageConverter();
-       /**
+      /**
        * This is necessary so that the message conversion uses the configured object mapper.
        * Otherwise, a separate object mapper is instantiated for Springs message conversion.
        */
-       converter.setObjectMapper(objectMapper());
+      converter.setObjectMapper(objectMapper());
-       converters.add(converter);
+      converters.add(converter);
-       super.configureMessageConverters(converters);
+      super.configureMessageConverters(converters);
    }
 
    @Bean
@@ -110,6 +111,11 @@ public class QueryRestConfig extends WebMvcConfigurerAdapter {
       module.addSerializer(new JsonStreamSerializer());
       mapper.registerModule(module);
 
+      // by default, byte[] are written as String
+      module = new SimpleModule("byte[]", Version.unknownVersion());
+      module.addSerializer(new JsonByteArraySerializer());
+      mapper.registerModule(module);
+
       return mapper;
    }
 

src/main/java/ch/psi/daq/queryrest/response/JsonByteArraySerializer.java

@@ -0,0 +1,30 @@
+package ch.psi.daq.queryrest.response;
+
+import java.io.IOException;
+
+import com.fasterxml.jackson.core.JsonGenerationException;
+import com.fasterxml.jackson.core.JsonGenerator;
+import com.fasterxml.jackson.databind.SerializerProvider;
+import com.fasterxml.jackson.databind.ser.std.StdSerializer;
+
+// see: http://stackoverflow.com/a/15037329
+public class JsonByteArraySerializer extends StdSerializer<byte[]> {
+   private static final long serialVersionUID = -5914688899857435263L;
+
+   public JsonByteArraySerializer() {
+      super(byte[].class, true);
+   }
+
+   @Override
+   public void serialize(byte[] bytes, JsonGenerator jgen, SerializerProvider provider) throws IOException,
+         JsonGenerationException {
+      jgen.writeStartArray();
+
+      for (byte b : bytes) {
+         // stackoverflow example used a mask -> ?
+         jgen.writeNumber(b);
+      }
+
+      jgen.writeEndArray();
+   }
+}

src/main/java/ch/psi/daq/queryrest/response/ResponseStreamWriter.java

@@ -12,6 +12,7 @@ import javax.servlet.ServletResponse;
 
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
+import org.springframework.http.MediaType;
 
 import com.fasterxml.jackson.core.JsonEncoding;
 import com.fasterxml.jackson.core.JsonFactory;
@@ -100,6 +101,8 @@ public class ResponseStreamWriter {
          ObjectWriter writer)
          throws IOException {
 
+      response.setCharacterEncoding(JsonEncoding.UTF8.getJavaName());
+      response.setContentType(MediaType.APPLICATION_JSON_VALUE);
       JsonGenerator generator = jsonFactory.createGenerator(response.getOutputStream(), JsonEncoding.UTF8);
       generator.writeStartArray();
       stream

src/main/resources/queryrest.properties

@@ -3,5 +3,5 @@ server.port=8080
 
 # defines the fields that are included in the response 
 # if no fields have been specified by the user
-queryrest.default.response.fields=channel,pulseId,globalMillis,globalNanos,value
+queryrest.default.response.fields=channel,pulseId,globalMillis,globalNanos,iocMillis,iocNanos,value
 queryrest.default.response.aggregations=min,max,sum