commit 8e4198bbb7066973b8ce077a9efadf9831303f52
author Till Westmann <tillw@apache.org> Tue Aug 30 17:16:38 2016 -0700
committer Till Westmann <tillw@apache.org> Tue Aug 30 20:57:02 2016 -0700
tree 3ca0f928132632704f9b04a050ae0ca121542c70
parent ee3ec00c9cfc28dab7bd80644a6d6a2c68812fc1

return an error if not statement is provided

Change-Id: I5e453ef1f13744281c1316c849b043f02cdd13e0
Reviewed-on: https://asterix-gerrit.ics.uci.edu/1129
Sonar-Qube: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
Tested-by: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
Integration-Tests: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
Reviewed-by: Michael Blow <mblow@apache.org>

asterixdb/asterix-app/src/main/java/org/apache/asterix/api/http/servlet/QueryServiceServlet.java

diff --git a/asterixdb/asterix-app/src/main/java/org/apache/asterix/api/http/servlet/QueryServiceServlet.java b/asterixdb/asterix-app/src/main/java/org/apache/asterix/api/http/servlet/QueryServiceServlet.java
index 015044c..b4097d1 100644
--- a/asterixdb/asterix-app/src/main/java/org/apache/asterix/api/http/servlet/QueryServiceServlet.java
+++ b/asterixdb/asterix-app/src/main/java/org/apache/asterix/api/http/servlet/QueryServiceServlet.java
@@ -49,8 +49,8 @@
 import org.apache.asterix.lang.common.base.Statement;
 import org.apache.asterix.metadata.MetadataManager;
 import org.apache.asterix.translator.IStatementExecutor;
-import org.apache.asterix.translator.IStatementExecutor.Stats;
 import org.apache.asterix.translator.IStatementExecutorFactory;
+import org.apache.asterix.translator.IStatementExecutor.Stats;
 import org.apache.commons.io.IOUtils;
 import org.apache.hyracks.algebricks.core.algebra.prettyprint.AlgebricksAppendable;
 import org.apache.hyracks.api.client.IHyracksClientConnection;
@@ -390,7 +390,6 @@
     private void handleRequest(HttpServletRequest request, HttpServletResponse response, String query)
             throws IOException {
         long elapsedStart = System.nanoTime();
-
         final StringWriter stringWriter = new StringWriter();
         final PrintWriter resultWriter = new PrintWriter(stringWriter);
 
@@ -408,6 +407,9 @@
         printSignature(resultWriter);
         printType(resultWriter, sessionConfig);
         try {
+            if (query == null || query.isEmpty()) {
+                throw new AsterixException("Empty request, no statement provided");
+            }
             IHyracksClientConnection hcc;
             IHyracksDataset hds;
             ServletContext context = getServletContext();