use constants consistently for servlet parameter names instead of using constant in one place and redundant string literal in another

java/com.sap.sailing.server.gateway.serialization.test/src/com/sap/sailing/server/gateway/serialization/test/MultipleJSONObjectsInStreamTest.java

@@ -0,0 +1,46 @@
+package com.sap.sailing.server.gateway.serialization.test;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertTrue;
+
+import java.io.ByteArrayInputStream;
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+import java.io.InputStreamReader;
+
+import org.json.simple.JSONArray;
+import org.json.simple.JSONObject;
+import org.json.simple.parser.JSONParser;
+import org.json.simple.parser.ParseException;
+import org.junit.Test;
+
+/**
+ * Demonstrates and validates how to write more than one JSON object into a single stream as a JSONArray
+ * 
+ * @author Axel Uhl (d043530)
+ *
+ */
+public class MultipleJSONObjectsInStreamTest {
+    @Test
+    public void testMultipleJSONObjectsInOneStream() throws IOException, ParseException {
+        ByteArrayOutputStream bos = new ByteArrayOutputStream();
+        JSONObject o1 = new JSONObject();
+        o1.put("o1", "o1");
+        JSONObject o2 = new JSONObject();
+        o2.put("o2", "o2");
+        bos.write('[');
+        bos.write(o1.toJSONString().getBytes());
+        bos.write(',');
+        bos.write(o2.toJSONString().getBytes());
+        bos.write(']');
+        bos.close();
+        
+        ByteArrayInputStream bis = new ByteArrayInputStream(bos.toByteArray());
+        JSONParser parser = new JSONParser();
+        Object o = parser.parse(new InputStreamReader(bis));
+        assertTrue(o instanceof JSONArray);
+        JSONArray a = (JSONArray) o;
+        assertEquals("o1", ((JSONObject) a.get(0)).get("o1"));
+        assertEquals("o2", ((JSONObject) a.get(1)).get("o2"));
+    }
+}