X-Git-Url: http://juplo.de/gitweb/?a=blobdiff_plain;f=src%2Fmain%2Fjava%2Fde%2Fjuplo%2Fkafka%2FRestProducer.java;h=70b327a591841696a577406f1b4ea2e0fd9c0731;hb=459f64072f3b657990a3bda0d39306208702d537;hp=dea49f0c1ba2982a4bc74d2305ae60163d7b3a8d;hpb=13ca75e4fc7db1f65903609a566dcbcde2d89214;p=demos%2Fkafka%2Ftraining

diff --git a/src/main/java/de/juplo/kafka/RestProducer.java b/src/main/java/de/juplo/kafka/RestProducer.java
index dea49f0..70b327a 100644
--- a/src/main/java/de/juplo/kafka/RestProducer.java
+++ b/src/main/java/de/juplo/kafka/RestProducer.java
@@ -4,14 +4,14 @@ import lombok.extern.slf4j.Slf4j;
 import org.apache.kafka.clients.producer.KafkaProducer;
 import org.apache.kafka.clients.producer.ProducerRecord;
 import org.apache.kafka.common.serialization.StringSerializer;
-import org.springframework.http.MediaType;
+import org.springframework.http.HttpStatus;
+import org.springframework.kafka.support.serializer.JsonSerializer;
 import org.springframework.web.bind.annotation.*;
 import org.springframework.web.context.request.async.DeferredResult;
 
 import javax.annotation.PreDestroy;
 import java.util.Properties;
 import java.util.concurrent.ExecutionException;
-import java.util.concurrent.ExecutorService;
 
 
 @Slf4j
@@ -20,7 +20,7 @@ public class RestProducer
 {
   private final String id;
   private final String topic;
-  private final KafkaProducer<String, String> producer;
+  private final KafkaProducer<String, Object> producer;
 
   private long produced = 0;
 
@@ -39,26 +39,63 @@ public class RestProducer
     props.put("linger.ms", properties.getLingerMs());
     props.put("compression.type", properties.getCompressionType());
     props.put("key.serializer", StringSerializer.class.getName());
-    props.put("value.serializer", StringSerializer.class.getName());
+    props.put("value.serializer", JsonSerializer.class.getName());
+    props.put(JsonSerializer.TYPE_MAPPINGS,
+        "message:" + ClientMessage.class.getName() + "," +
+        "foo:" + FooMessage.class.getName() + "," +
+        "greeting:" + Greeting.class.getName());
 
     this.producer = new KafkaProducer<>(props);
   }
 
   @PostMapping(path = "{key}")
-  public DeferredResult<ProduceResult> send(
+  public DeferredResult<ProduceResult> message(
       @PathVariable String key,
       @RequestBody String value)
   {
-    DeferredResult<ProduceResult> result = new DeferredResult<>();
+    key = key.trim();
+    final ProducerRecord<String, Object> record = new ProducerRecord<>(
+        topic,  // Topic
+        key,    // Key
+        new ClientMessage(key, value) // Value
+    );
 
-    final long time = System.currentTimeMillis();
+    return send(record);
+  }
 
-    final ProducerRecord<String, String> record = new ProducerRecord<>(
+  @PutMapping(path = "{key}")
+  public DeferredResult<ProduceResult> message(@PathVariable String key)
+  {
+    key = key.trim();
+    final ProducerRecord<String, Object> record = new ProducerRecord<>(
         topic,  // Topic
         key,    // Key
-        value   // Value
+        new FooMessage(key, System.currentTimeMillis()) // Value
     );
 
+    return send(record);
+  }
+
+  @PostMapping(path = "/")
+  public DeferredResult<ProduceResult> greeting(
+      @RequestBody String name)
+  {
+    name = name.trim();
+    final ProducerRecord<String, Object> record = new ProducerRecord<>(
+        topic,  // Topic
+        name,    // Key
+        new Greeting(name) // Value
+    );
+
+    return send(record);
+  }
+
+  private DeferredResult<ProduceResult> send(ProducerRecord<String, Object> record)
+  {
+    DeferredResult<ProduceResult> result = new DeferredResult<>();
+
+    final long time = System.currentTimeMillis();
+
     producer.send(record, (metadata, e) ->
     {
       long now = System.currentTimeMillis();
@@ -95,9 +132,8 @@ public class RestProducer
 
     long now = System.currentTimeMillis();
     log.trace(
-        "{} - Queued #{} key={} latency={}ms",
+        "{} - Queued key={} latency={}ms",
         id,
-        value,
         record.key(),
         now - time
     );
@@ -105,6 +141,13 @@ public class RestProducer
     return result;
   }
 
+  @ExceptionHandler
+  @ResponseStatus(HttpStatus.BAD_REQUEST)
+  public ErrorResponse illegalStateException(IllegalStateException e)
+  {
+    return new ErrorResponse(e.getMessage(), HttpStatus.BAD_REQUEST.value());
+  }
+
   @PreDestroy
   public void destroy() throws ExecutionException, InterruptedException
   {