http://git-wip-us.apache.org/repos/asf/storm/blob/f1c0bcbe/storm-server/src/main/java/org/apache/storm/localizer/LocallyCachedTopologyBlob.java
----------------------------------------------------------------------
diff --git 
a/storm-server/src/main/java/org/apache/storm/localizer/LocallyCachedTopologyBlob.java
 
b/storm-server/src/main/java/org/apache/storm/localizer/LocallyCachedTopologyBlob.java
index 1521a96..b430f0b 100644
--- 
a/storm-server/src/main/java/org/apache/storm/localizer/LocallyCachedTopologyBlob.java
+++ 
b/storm-server/src/main/java/org/apache/storm/localizer/LocallyCachedTopologyBlob.java
@@ -1,19 +1,13 @@
 /**
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
+ * Licensed to the Apache Software Foundation (ASF) under one or more 
contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.  The 
ASF licenses this file to you under the Apache License, Version
+ * 2.0 (the "License"); you may not use this file except in compliance with 
the License.  You may obtain a copy of the License at
  * <p>
  * http://www.apache.org/licenses/LICENSE-2.0
  * <p>
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing, software 
distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 
See the License for the specific language governing permissions
+ * and limitations under the License.
  */
 
 package org.apache.storm.localizer;
@@ -22,7 +16,6 @@ import java.io.File;
 import java.io.FileOutputStream;
 import java.io.IOException;
 import java.io.InputStream;
-import java.io.OutputStream;
 import java.net.JarURLConnection;
 import java.net.URL;
 import java.nio.file.DirectoryStream;
@@ -35,11 +28,9 @@ import java.util.jar.JarEntry;
 import java.util.jar.JarFile;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
-
 import org.apache.commons.io.FileUtils;
 import org.apache.commons.io.IOUtils;
 import org.apache.storm.blobstore.ClientBlobStore;
-import org.apache.storm.blobstore.InputStreamWithMeta;
 import org.apache.storm.daemon.supervisor.AdvancedFSOps;
 import org.apache.storm.generated.AuthorizationException;
 import org.apache.storm.generated.KeyNotFoundException;
@@ -54,69 +45,9 @@ import org.slf4j.LoggerFactory;
  * The version number of the blob's file will be stored in 
`${basename}.version`
  */
 public class LocallyCachedTopologyBlob extends LocallyCachedBlob {
-    private static final Logger LOG = 
LoggerFactory.getLogger(LocallyCachedTopologyBlob.class);
     public static final long LOCAL_MODE_JAR_VERSION = 1;
-
-    private static String resourcesJar() throws IOException {
-        String path = ServerUtils.currentClasspath();
-        if (path == null) {
-            return null;
-        }
-
-        for (String jpath : path.split(File.pathSeparator)) {
-            if (jpath.endsWith(".jar")) {
-                if (ServerUtils.zipDoesContainDir(jpath, 
ServerConfigUtils.RESOURCES_SUBDIR)) {
-                    return jpath;
-                }
-            }
-        }
-        return null;
-    }
-
-    public enum TopologyBlobType {
-        TOPO_JAR("stormjar.jar", "-stormjar.jar", "resources"),
-        TOPO_CODE("stormcode.ser", "-stormcode.ser", null),
-        TOPO_CONF("stormconf.ser", "-stormconf.ser", null);
-
-        private final String fileName;
-        private final String keySuffix;
-        private final String extractionDir;
-
-        TopologyBlobType(String fileName, String keySuffix, String 
extractionDir) {
-            this.fileName = fileName;
-            this.keySuffix = keySuffix;
-            this.extractionDir = extractionDir;
-        }
-
-        public String getFileName() {
-            return fileName;
-        }
-
-        public String getTempFileName(long version) {
-            return fileName + "." + version;
-        }
-
-        public String getVersionFileName() {
-            return fileName + ".version";
-        }
-
-        public String getKey(String topologyId) {
-            return topologyId + keySuffix;
-        }
-
-        public boolean needsExtraction() {
-            return extractionDir != null;
-        }
-
-        public String getExtractionDir() {
-            return extractionDir;
-        }
-
-        public String getTempExtractionDir(long version) {
-            return extractionDir + "." + version;
-        }
-    }
-
+    private static final Logger LOG = 
LoggerFactory.getLogger(LocallyCachedTopologyBlob.class);
+    private static final Pattern EXTRACT_BASE_NAME_AND_VERSION = 
Pattern.compile("^(.*)\\.([0-9]+)$");
     private final TopologyBlobType type;
     private final String topologyId;
     private final boolean isLocalMode;
@@ -124,7 +55,6 @@ public class LocallyCachedTopologyBlob extends 
LocallyCachedBlob {
     private final AdvancedFSOps fsOps;
     private volatile long version = NOT_DOWNLOADED_VERSION;
     private volatile long size = 0;
-
     /**
      * Create a new LocallyCachedBlob.
      *
@@ -143,6 +73,22 @@ public class LocallyCachedTopologyBlob extends 
LocallyCachedBlob {
         updateSizeOnDisk();
     }
 
+    private static String resourcesJar() throws IOException {
+        String path = ServerUtils.currentClasspath();
+        if (path == null) {
+            return null;
+        }
+
+        for (String jpath : path.split(File.pathSeparator)) {
+            if (jpath.endsWith(".jar")) {
+                if (ServerUtils.zipDoesContainDir(jpath, 
ServerConfigUtils.RESOURCES_SUBDIR)) {
+                    return jpath;
+                }
+            }
+        }
+        return null;
+    }
+
     private void updateSizeOnDisk() throws IOException {
         long total = 
getSizeOnDisk(topologyBasicBlobsRootDir.resolve(type.getFileName()));
         if (type.needsExtraction()) {
@@ -203,14 +149,14 @@ public class LocallyCachedTopologyBlob extends 
LocallyCachedBlob {
 
 
         long newVersion = downloadToTempLocation(store, 
type.getKey(topologyId), version, fsOps,
-            (version) -> 
topologyBasicBlobsRootDir.resolve(type.getTempFileName(version)));
+                                                 (version) -> 
topologyBasicBlobsRootDir.resolve(type.getTempFileName(version)));
 
         Path tmpLocation = 
topologyBasicBlobsRootDir.resolve(type.getTempFileName(newVersion));
 
         if (type.needsExtraction()) {
             Path extractionDest = 
topologyBasicBlobsRootDir.resolve(type.getTempExtractionDir(newVersion));
             extractDirFromJar(tmpLocation.toAbsolutePath().toString(), 
ServerConfigUtils.RESOURCES_SUBDIR,
-                extractionDest);
+                              extractionDest);
         }
         return newVersion;
     }
@@ -295,16 +241,14 @@ public class LocallyCachedTopologyBlob extends 
LocallyCachedBlob {
         }
     }
 
-    private static final Pattern EXTRACT_BASE_NAME_AND_VERSION = 
Pattern.compile("^(.*)\\.([0-9]+)$");
-
     private void cleanUpTemp(String baseName) throws IOException {
         LOG.debug("Cleaning up temporary data in {}", 
topologyBasicBlobsRootDir);
         try (DirectoryStream<Path> children = 
fsOps.newDirectoryStream(topologyBasicBlobsRootDir,
-            (p) -> {
-                String fileName = p.getFileName().toString();
-                Matcher m = EXTRACT_BASE_NAME_AND_VERSION.matcher(fileName);
-                return m.matches() && baseName.equals(m.group(1));
-            })) {
+                                                                       (p) -> {
+                                                                           
String fileName = p.getFileName().toString();
+                                                                           
Matcher m = EXTRACT_BASE_NAME_AND_VERSION.matcher(fileName);
+                                                                           
return m.matches() && baseName.equals(m.group(1));
+                                                                       })) {
             //children is only ever null if topologyBasicBlobsRootDir does not 
exist.  This happens during unit tests
             // And because a non-existant directory is by definition clean we 
are ignoring it.
             if (children != null) {
@@ -344,7 +288,7 @@ public class LocallyCachedTopologyBlob extends 
LocallyCachedBlob {
     @Override
     public boolean equals(Object other) {
         if (other instanceof LocallyCachedTopologyBlob) {
-            LocallyCachedTopologyBlob o = (LocallyCachedTopologyBlob)other;
+            LocallyCachedTopologyBlob o = (LocallyCachedTopologyBlob) other;
             return topologyId.equals(o.topologyId) && type == o.type && 
topologyBasicBlobsRootDir.equals(o.topologyBasicBlobsRootDir);
         }
         return false;
@@ -359,4 +303,48 @@ public class LocallyCachedTopologyBlob extends 
LocallyCachedBlob {
     public String toString() {
         return "LOCAL TOPO BLOB " + type + " " + topologyId;
     }
+
+    public enum TopologyBlobType {
+        TOPO_JAR("stormjar.jar", "-stormjar.jar", "resources"),
+        TOPO_CODE("stormcode.ser", "-stormcode.ser", null),
+        TOPO_CONF("stormconf.ser", "-stormconf.ser", null);
+
+        private final String fileName;
+        private final String keySuffix;
+        private final String extractionDir;
+
+        TopologyBlobType(String fileName, String keySuffix, String 
extractionDir) {
+            this.fileName = fileName;
+            this.keySuffix = keySuffix;
+            this.extractionDir = extractionDir;
+        }
+
+        public String getFileName() {
+            return fileName;
+        }
+
+        public String getTempFileName(long version) {
+            return fileName + "." + version;
+        }
+
+        public String getVersionFileName() {
+            return fileName + ".version";
+        }
+
+        public String getKey(String topologyId) {
+            return topologyId + keySuffix;
+        }
+
+        public boolean needsExtraction() {
+            return extractionDir != null;
+        }
+
+        public String getExtractionDir() {
+            return extractionDir;
+        }
+
+        public String getTempExtractionDir(long version) {
+            return extractionDir + "." + version;
+        }
+    }
 }

http://git-wip-us.apache.org/repos/asf/storm/blob/f1c0bcbe/storm-server/src/main/java/org/apache/storm/localizer/PortAndAssignment.java
----------------------------------------------------------------------
diff --git 
a/storm-server/src/main/java/org/apache/storm/localizer/PortAndAssignment.java 
b/storm-server/src/main/java/org/apache/storm/localizer/PortAndAssignment.java
index bd92173..0979e03 100644
--- 
a/storm-server/src/main/java/org/apache/storm/localizer/PortAndAssignment.java
+++ 
b/storm-server/src/main/java/org/apache/storm/localizer/PortAndAssignment.java
@@ -1,19 +1,13 @@
 /**
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
+ * Licensed to the Apache Software Foundation (ASF) under one or more 
contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.  The 
ASF licenses this file to you under the Apache License, Version
+ * 2.0 (the "License"); you may not use this file except in compliance with 
the License.  You may obtain a copy of the License at
  *
  * http://www.apache.org/licenses/LICENSE-2.0
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing, software 
distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 
See the License for the specific language governing permissions
+ * and limitations under the License.
  */
 
 package org.apache.storm.localizer;

http://git-wip-us.apache.org/repos/asf/storm/blob/f1c0bcbe/storm-server/src/main/java/org/apache/storm/logging/ThriftAccessLogger.java
----------------------------------------------------------------------
diff --git 
a/storm-server/src/main/java/org/apache/storm/logging/ThriftAccessLogger.java 
b/storm-server/src/main/java/org/apache/storm/logging/ThriftAccessLogger.java
index e326174..78ab822 100644
--- 
a/storm-server/src/main/java/org/apache/storm/logging/ThriftAccessLogger.java
+++ 
b/storm-server/src/main/java/org/apache/storm/logging/ThriftAccessLogger.java
@@ -1,19 +1,13 @@
 /**
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
+ * Licensed to the Apache Software Foundation (ASF) under one or more 
contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.  The 
ASF licenses this file to you under the Apache License, Version
+ * 2.0 (the "License"); you may not use this file except in compliance with 
the License.  You may obtain a copy of the License at
  *
  * http://www.apache.org/licenses/LICENSE-2.0
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing, software 
distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 
See the License for the specific language governing permissions
+ * and limitations under the License.
  */
 
 package org.apache.storm.logging;
@@ -29,7 +23,7 @@ public class ThriftAccessLogger {
     private static String accessLogBase = "Request ID: {} access from: {} 
principal: {} operation: {}";
 
     public static void logAccessFunction(Integer requestId, InetAddress 
remoteAddress,
-                                         Principal principal, String 
operation, 
+                                         Principal principal, String operation,
                                          String function) {
         String functionPart = "";
         if (function != null) {

http://git-wip-us.apache.org/repos/asf/storm/blob/f1c0bcbe/storm-server/src/main/java/org/apache/storm/logging/filters/AccessLoggingFilter.java
----------------------------------------------------------------------
diff --git 
a/storm-server/src/main/java/org/apache/storm/logging/filters/AccessLoggingFilter.java
 
b/storm-server/src/main/java/org/apache/storm/logging/filters/AccessLoggingFilter.java
index de4cb72..5d7df0c 100644
--- 
a/storm-server/src/main/java/org/apache/storm/logging/filters/AccessLoggingFilter.java
+++ 
b/storm-server/src/main/java/org/apache/storm/logging/filters/AccessLoggingFilter.java
@@ -1,19 +1,13 @@
 /**
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
+ * Licensed to the Apache Software Foundation (ASF) under one or more 
contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.  The 
ASF licenses this file to you under the Apache License, Version
+ * 2.0 (the "License"); you may not use this file except in compliance with 
the License.  You may obtain a copy of the License at
  * <p>
  * http://www.apache.org/licenses/LICENSE-2.0
  * <p>
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing, software 
distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 
See the License for the specific language governing permissions
+ * and limitations under the License.
  */
 
 package org.apache.storm.logging.filters;
@@ -27,7 +21,6 @@ import javax.servlet.ServletRequest;
 import javax.servlet.ServletResponse;
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;
-
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -46,7 +39,7 @@ public class AccessLoggingFilter implements Filter {
     public void handle(HttpServletRequest request, HttpServletResponse 
response, FilterChain chain) throws IOException, ServletException {
         if (request != null) {
             LOG.info("Access from: {} url: {} principal: {}", 
request.getRemoteAddr(), request.getRequestURL(),
-                (request.getUserPrincipal() == null ? "" : 
request.getUserPrincipal().getName()));
+                     (request.getUserPrincipal() == null ? "" : 
request.getUserPrincipal().getName()));
         }
         chain.doFilter(request, response);
     }

http://git-wip-us.apache.org/repos/asf/storm/blob/f1c0bcbe/storm-server/src/main/java/org/apache/storm/metric/ClusterMetricsConsumerExecutor.java
----------------------------------------------------------------------
diff --git 
a/storm-server/src/main/java/org/apache/storm/metric/ClusterMetricsConsumerExecutor.java
 
b/storm-server/src/main/java/org/apache/storm/metric/ClusterMetricsConsumerExecutor.java
index 2ee8db5..cfeb63c 100644
--- 
a/storm-server/src/main/java/org/apache/storm/metric/ClusterMetricsConsumerExecutor.java
+++ 
b/storm-server/src/main/java/org/apache/storm/metric/ClusterMetricsConsumerExecutor.java
@@ -1,35 +1,29 @@
 /**
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
+ * Licensed to the Apache Software Foundation (ASF) under one or more 
contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.  The 
ASF licenses this file to you under the Apache License, Version
+ * 2.0 (the "License"); you may not use this file except in compliance with 
the License.  You may obtain a copy of the License at
  *
  * http://www.apache.org/licenses/LICENSE-2.0
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing, software 
distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 
See the License for the specific language governing permissions
+ * and limitations under the License.
  */
+
 package org.apache.storm.metric;
 
+import java.util.Collection;
 import org.apache.storm.metric.api.DataPoint;
 import org.apache.storm.metric.api.IClusterMetricsConsumer;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-import java.util.Collection;
-
 public class ClusterMetricsConsumerExecutor {
     public static final Logger LOG = 
LoggerFactory.getLogger(ClusterMetricsConsumerExecutor.class);
     private static final String 
ERROR_MESSAGE_PREPARATION_CLUSTER_METRICS_CONSUMER_FAILED =
-            "Preparation of Cluster Metrics Consumer failed. " +
-            "Please check your configuration and/or corresponding systems and 
relaunch Nimbus. " +
-            "Skipping handle metrics.";
+        "Preparation of Cluster Metrics Consumer failed. " +
+        "Please check your configuration and/or corresponding systems and 
relaunch Nimbus. " +
+        "Skipping handle metrics.";
 
     private IClusterMetricsConsumer metricsConsumer;
     private String consumerClassName;
@@ -42,11 +36,11 @@ public class ClusterMetricsConsumerExecutor {
 
     public void prepare() {
         try {
-            metricsConsumer = 
(IClusterMetricsConsumer)Class.forName(consumerClassName).newInstance();
+            metricsConsumer = (IClusterMetricsConsumer) 
Class.forName(consumerClassName).newInstance();
             metricsConsumer.prepare(registrationArgument);
         } catch (Exception e) {
             LOG.error("Could not instantiate or prepare Cluster Metrics 
Consumer with fully qualified name " +
-                    consumerClassName, e);
+                      consumerClassName, e);
 
             if (metricsConsumer != null) {
                 metricsConsumer.cleanup();

http://git-wip-us.apache.org/repos/asf/storm/blob/f1c0bcbe/storm-server/src/main/java/org/apache/storm/metric/LoggingClusterMetricsConsumer.java
----------------------------------------------------------------------
diff --git 
a/storm-server/src/main/java/org/apache/storm/metric/LoggingClusterMetricsConsumer.java
 
b/storm-server/src/main/java/org/apache/storm/metric/LoggingClusterMetricsConsumer.java
index db47d84..f07dc54 100644
--- 
a/storm-server/src/main/java/org/apache/storm/metric/LoggingClusterMetricsConsumer.java
+++ 
b/storm-server/src/main/java/org/apache/storm/metric/LoggingClusterMetricsConsumer.java
@@ -1,29 +1,23 @@
 /**
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
+ * Licensed to the Apache Software Foundation (ASF) under one or more 
contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.  The 
ASF licenses this file to you under the Apache License, Version
+ * 2.0 (the "License"); you may not use this file except in compliance with 
the License.  You may obtain a copy of the License at
  *
  * http://www.apache.org/licenses/LICENSE-2.0
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing, software 
distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 
See the License for the specific language governing permissions
+ * and limitations under the License.
  */
+
 package org.apache.storm.metric;
 
+import java.util.Collection;
 import org.apache.storm.metric.api.DataPoint;
 import org.apache.storm.metric.api.IClusterMetricsConsumer;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-import java.util.Collection;
-
 /**
  * Listens for cluster related metrics, dumps them to log
  *
@@ -48,7 +42,7 @@ public class LoggingClusterMetricsConsumer implements 
IClusterMetricsConsumer {
     public void handleDataPoints(ClusterInfo clusterInfo, 
Collection<DataPoint> dataPoints) {
         StringBuilder sb = new StringBuilder();
         String header = String.format("%d\t%15s\t%40s\t",
-                clusterInfo.getTimestamp(), "<cluster>", "<cluster>");
+                                      clusterInfo.getTimestamp(), "<cluster>", 
"<cluster>");
         sb.append(header);
         logDataPoints(dataPoints, sb, header);
     }
@@ -57,15 +51,15 @@ public class LoggingClusterMetricsConsumer implements 
IClusterMetricsConsumer {
     public void handleDataPoints(SupervisorInfo supervisorInfo, 
Collection<DataPoint> dataPoints) {
         StringBuilder sb = new StringBuilder();
         String header = String.format("%d\t%15s\t%40s\t",
-                supervisorInfo.getTimestamp(),
-                supervisorInfo.getSrcSupervisorHost(),
-                supervisorInfo.getSrcSupervisorId());
+                                      supervisorInfo.getTimestamp(),
+                                      supervisorInfo.getSrcSupervisorHost(),
+                                      supervisorInfo.getSrcSupervisorId());
         sb.append(header);
         for (DataPoint p : dataPoints) {
             sb.delete(header.length(), sb.length());
             sb.append(p.getName())
-                    
.append(padding).delete(header.length()+23,sb.length()).append("\t")
-                    .append(p.getValue());
+              .append(padding).delete(header.length() + 23, 
sb.length()).append("\t")
+              .append(p.getValue());
             LOG.info(sb.toString());
         }
     }
@@ -78,8 +72,8 @@ public class LoggingClusterMetricsConsumer implements 
IClusterMetricsConsumer {
         for (DataPoint p : dataPoints) {
             sb.delete(header.length(), sb.length());
             sb.append(p.getName())
-                    
.append(padding).delete(header.length()+23,sb.length()).append("\t")
-                    .append(p.getValue());
+              .append(padding).delete(header.length() + 23, 
sb.length()).append("\t")
+              .append(p.getValue());
             LOG.info(sb.toString());
         }
     }

http://git-wip-us.apache.org/repos/asf/storm/blob/f1c0bcbe/storm-server/src/main/java/org/apache/storm/metric/StormMetricsRegistry.java
----------------------------------------------------------------------
diff --git 
a/storm-server/src/main/java/org/apache/storm/metric/StormMetricsRegistry.java 
b/storm-server/src/main/java/org/apache/storm/metric/StormMetricsRegistry.java
index 28bba3e..3bc50e7 100644
--- 
a/storm-server/src/main/java/org/apache/storm/metric/StormMetricsRegistry.java
+++ 
b/storm-server/src/main/java/org/apache/storm/metric/StormMetricsRegistry.java
@@ -1,28 +1,25 @@
 /**
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
+ * Licensed to the Apache Software Foundation (ASF) under one or more 
contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.  The 
ASF licenses this file to you under the Apache License, Version
+ * 2.0 (the "License"); you may not use this file except in compliance with 
the License.  You may obtain a copy of the License at
  *
  * http://www.apache.org/licenses/LICENSE-2.0
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing, software 
distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 
See the License for the specific language governing permissions
+ * and limitations under the License.
  */
 
 package org.apache.storm.metric;
 
-import com.codahale.metrics.*;
-
+import com.codahale.metrics.Gauge;
+import com.codahale.metrics.Histogram;
+import com.codahale.metrics.Meter;
+import com.codahale.metrics.Metric;
+import com.codahale.metrics.MetricRegistry;
+import com.codahale.metrics.Reservoir;
 import java.util.Map;
 import java.util.concurrent.Callable;
-
 import org.apache.storm.daemon.metrics.MetricsUtils;
 import org.apache.storm.daemon.metrics.reporters.PreparableReporter;
 import org.slf4j.Logger;
@@ -30,8 +27,8 @@ import org.slf4j.LoggerFactory;
 
 @SuppressWarnings("unchecked")
 public class StormMetricsRegistry {
-    private static final Logger LOG = 
LoggerFactory.getLogger(StormMetricsRegistry.class);
     public static final MetricRegistry DEFAULT_REGISTRY = new MetricRegistry();
+    private static final Logger LOG = 
LoggerFactory.getLogger(StormMetricsRegistry.class);
 
     public static Meter registerMeter(String name) {
         Meter meter = new Meter();

http://git-wip-us.apache.org/repos/asf/storm/blob/f1c0bcbe/storm-server/src/main/java/org/apache/storm/metric/api/DataPoint.java
----------------------------------------------------------------------
diff --git 
a/storm-server/src/main/java/org/apache/storm/metric/api/DataPoint.java 
b/storm-server/src/main/java/org/apache/storm/metric/api/DataPoint.java
index 615dd5b..8468722 100644
--- a/storm-server/src/main/java/org/apache/storm/metric/api/DataPoint.java
+++ b/storm-server/src/main/java/org/apache/storm/metric/api/DataPoint.java
@@ -1,20 +1,15 @@
 /**
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
+ * Licensed to the Apache Software Foundation (ASF) under one or more 
contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.  The 
ASF licenses this file to you under the Apache License, Version
+ * 2.0 (the "License"); you may not use this file except in compliance with 
the License.  You may obtain a copy of the License at
  *
  * http://www.apache.org/licenses/LICENSE-2.0
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing, software 
distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 
See the License for the specific language governing permissions
+ * and limitations under the License.
  */
+
 package org.apache.storm.metric.api;
 
 public class DataPoint {

http://git-wip-us.apache.org/repos/asf/storm/blob/f1c0bcbe/storm-server/src/main/java/org/apache/storm/metric/api/IClusterMetricsConsumer.java
----------------------------------------------------------------------
diff --git 
a/storm-server/src/main/java/org/apache/storm/metric/api/IClusterMetricsConsumer.java
 
b/storm-server/src/main/java/org/apache/storm/metric/api/IClusterMetricsConsumer.java
index 39d60f3..a0b0a8d 100644
--- 
a/storm-server/src/main/java/org/apache/storm/metric/api/IClusterMetricsConsumer.java
+++ 
b/storm-server/src/main/java/org/apache/storm/metric/api/IClusterMetricsConsumer.java
@@ -1,25 +1,28 @@
 /**
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
+ * Licensed to the Apache Software Foundation (ASF) under one or more 
contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.  The 
ASF licenses this file to you under the Apache License, Version
+ * 2.0 (the "License"); you may not use this file except in compliance with 
the License.  You may obtain a copy of the License at
  *
  * http://www.apache.org/licenses/LICENSE-2.0
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Unless required by applicable law or agreed to in writing, software 
distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 
See the License for the specific language governing permissions
+ * and limitations under the License.
  */
+
 package org.apache.storm.metric.api;
 
 import java.util.Collection;
 
 public interface IClusterMetricsConsumer {
+    void prepare(Object registrationArgument);
+
+    void handleDataPoints(ClusterInfo clusterInfo, Collection<DataPoint> 
dataPoints);
+
+    void handleDataPoints(SupervisorInfo supervisorInfo, Collection<DataPoint> 
dataPoints);
+
+    void cleanup();
+
     class ClusterInfo {
         private long timestamp;
 
@@ -55,9 +58,4 @@ public interface IClusterMetricsConsumer {
             return timestamp;
         }
     }
-
-    void prepare(Object registrationArgument);
-    void handleDataPoints(ClusterInfo clusterInfo, Collection<DataPoint> 
dataPoints);
-    void handleDataPoints(SupervisorInfo supervisorInfo, Collection<DataPoint> 
dataPoints);
-    void cleanup();
 }

http://git-wip-us.apache.org/repos/asf/storm/blob/f1c0bcbe/storm-server/src/main/java/org/apache/storm/metricstore/AggLevel.java
----------------------------------------------------------------------
diff --git 
a/storm-server/src/main/java/org/apache/storm/metricstore/AggLevel.java 
b/storm-server/src/main/java/org/apache/storm/metricstore/AggLevel.java
index 662a17c..d8beaa0 100644
--- a/storm-server/src/main/java/org/apache/storm/metricstore/AggLevel.java
+++ b/storm-server/src/main/java/org/apache/storm/metricstore/AggLevel.java
@@ -1,19 +1,12 @@
 /**
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
+ * Licensed to the Apache Software Foundation (ASF) under one or more 
contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.  The 
ASF licenses this file to you under the Apache License, Version
+ * 2.0 (the "License"); you may not use this file except in compliance with 
the License.  You may obtain a copy of the License at
  * http://www.apache.org/licenses/LICENSE-2.0
  *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations
- * under the License.
+ * Unless required by applicable law or agreed to in writing, software 
distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  
See the License for the specific language governing permissions
+ * and limitations under the License.
  */
 
 package org.apache.storm.metricstore;
@@ -30,7 +23,7 @@ public enum AggLevel {
     private final byte value;
 
     AggLevel(int value) {
-        this.value = (byte)value;
+        this.value = (byte) value;
     }
 
     public byte getValue() {

http://git-wip-us.apache.org/repos/asf/storm/blob/f1c0bcbe/storm-server/src/main/java/org/apache/storm/metricstore/FilterOptions.java
----------------------------------------------------------------------
diff --git 
a/storm-server/src/main/java/org/apache/storm/metricstore/FilterOptions.java 
b/storm-server/src/main/java/org/apache/storm/metricstore/FilterOptions.java
index 7cfbfbe..33d2097 100644
--- a/storm-server/src/main/java/org/apache/storm/metricstore/FilterOptions.java
+++ b/storm-server/src/main/java/org/apache/storm/metricstore/FilterOptions.java
@@ -1,19 +1,12 @@
 /**
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
+ * Licensed to the Apache Software Foundation (ASF) under one or more 
contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.  The 
ASF licenses this file to you under the Apache License, Version
+ * 2.0 (the "License"); you may not use this file except in compliance with 
the License.  You may obtain a copy of the License at
  * http://www.apache.org/licenses/LICENSE-2.0
  *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations
- * under the License.
+ * Unless required by applicable law or agreed to in writing, software 
distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  
See the License for the specific language governing permissions
+ * and limitations under the License.
  */
 
 package org.apache.storm.metricstore;
@@ -39,32 +32,28 @@ public class FilterOptions {
     public FilterOptions() {
     }
 
-    public void setTopologyId(String topoId) {
-        this.topologyId = topoId;
-    }
-
     public String getTopologyId() {
         return this.topologyId;
     }
 
-    public void setComponentId(String component) {
-        this.componentId = component;
+    public void setTopologyId(String topoId) {
+        this.topologyId = topoId;
     }
 
     public String getComponentId() {
         return this.componentId;
     }
 
-    public void setStartTime(Long time) {
-        this.startTime = time;
+    public void setComponentId(String component) {
+        this.componentId = component;
     }
 
     public long getStartTime() {
         return this.startTime;
     }
 
-    public void setEndTime(Long time) {
-        this.endTime = time;
+    public void setStartTime(Long time) {
+        this.startTime = time;
     }
 
     /**
@@ -77,46 +66,50 @@ public class FilterOptions {
         return this.endTime;
     }
 
-    public void setMetricName(String name) {
-        this.metricName = name;
+    public void setEndTime(Long time) {
+        this.endTime = time;
     }
 
     public String getMetricName() {
         return this.metricName;
     }
 
-    public void setExecutorId(String id) {
-        this.executorId = id;
+    public void setMetricName(String name) {
+        this.metricName = name;
     }
 
     public String getExecutorId() {
         return this.executorId;
     }
 
-    public void setHostId(String id) {
-        this.hostId = id;
+    public void setExecutorId(String id) {
+        this.executorId = id;
     }
 
     public String getHostId() {
         return this.hostId;
     }
 
-    public void setPort(Integer p) {
-        this.port = p;
+    public void setHostId(String id) {
+        this.hostId = id;
     }
 
     public Integer getPort() {
         return this.port;
     }
 
-    public void setStreamId(String id) {
-        this.streamId = id;
+    public void setPort(Integer p) {
+        this.port = p;
     }
 
     public String getStreamId() {
         return this.streamId;
     }
 
+    public void setStreamId(String id) {
+        this.streamId = id;
+    }
+
     /**
      *  Add an aggregation level to search for.
      */
@@ -128,16 +121,6 @@ public class FilterOptions {
     }
 
     /**
-     *  Set the aggregation levels to search for.
-     */
-    public void setAggLevels(Set<AggLevel> levels) throws MetricException {
-        this.aggLevels = levels;
-        if (this.aggLevels == null || this.aggLevels.isEmpty()) {
-            throw new MetricException("Cannot search for empty AggLevel");
-        }
-    }
-
-    /**
      *  Get the aggregation levels to search for.
      */
     public Set<AggLevel> getAggLevels() {
@@ -151,4 +134,14 @@ public class FilterOptions {
         }
         return this.aggLevels;
     }
+
+    /**
+     *  Set the aggregation levels to search for.
+     */
+    public void setAggLevels(Set<AggLevel> levels) throws MetricException {
+        this.aggLevels = levels;
+        if (this.aggLevels == null || this.aggLevels.isEmpty()) {
+            throw new MetricException("Cannot search for empty AggLevel");
+        }
+    }
 }

http://git-wip-us.apache.org/repos/asf/storm/blob/f1c0bcbe/storm-server/src/main/java/org/apache/storm/metricstore/Metric.java
----------------------------------------------------------------------
diff --git 
a/storm-server/src/main/java/org/apache/storm/metricstore/Metric.java 
b/storm-server/src/main/java/org/apache/storm/metricstore/Metric.java
index 716ced0..19de781 100644
--- a/storm-server/src/main/java/org/apache/storm/metricstore/Metric.java
+++ b/storm-server/src/main/java/org/apache/storm/metricstore/Metric.java
@@ -1,19 +1,12 @@
 /**
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
+ * Licensed to the Apache Software Foundation (ASF) under one or more 
contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.  The 
ASF licenses this file to you under the Apache License, Version
+ * 2.0 (the "License"); you may not use this file except in compliance with 
the License.  You may obtain a copy of the License at
  * http://www.apache.org/licenses/LICENSE-2.0
  *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations
- * under the License.
+ * Unless required by applicable law or agreed to in writing, software 
distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  
See the License for the specific language governing permissions
+ * and limitations under the License.
  */
 
 package org.apache.storm.metricstore;
@@ -22,7 +15,6 @@ import java.text.DateFormat;
 import java.text.SimpleDateFormat;
 import java.util.Date;
 import java.util.TimeZone;
-
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -100,20 +92,20 @@ public class Metric implements Comparable<Metric> {
         Metric o = (Metric) other;
 
         return this == other
-                || (this.name.equals(o.getMetricName())
-                && this.timestamp == o.getTimestamp()
-                && this.topologyId.equals(o.getTopologyId())
-                && this.value == o.getValue()
-                && this.componentId.equals(o.getComponentId())
-                && this.executorId.equals(o.getExecutorId())
-                && this.hostname.equals(o.getHostname())
-                && this.streamId.equals(o.getStreamId())
-                && this.port == o.getPort()
-                && this.count == o.getCount()
-                && this.min == o.getMin()
-                && this.max == o.getMax()
-                && this.sum == o.getSum()
-                && this.aggLevel == o.getAggLevel());
+               || (this.name.equals(o.getMetricName())
+                   && this.timestamp == o.getTimestamp()
+                   && this.topologyId.equals(o.getTopologyId())
+                   && this.value == o.getValue()
+                   && this.componentId.equals(o.getComponentId())
+                   && this.executorId.equals(o.getExecutorId())
+                   && this.hostname.equals(o.getHostname())
+                   && this.streamId.equals(o.getStreamId())
+                   && this.port == o.getPort()
+                   && this.count == o.getCount()
+                   && this.min == o.getMin()
+                   && this.max == o.getMax()
+                   && this.sum == o.getSum()
+                   && this.aggLevel == o.getAggLevel());
     }
 
     public AggLevel getAggLevel() {
@@ -131,17 +123,6 @@ public class Metric implements Comparable<Metric> {
     }
 
     /**
-     *  Initialize the metric value.
-     */
-    public void setValue(double value) {
-        this.count = 1L;
-        this.min = value;
-        this.max = value;
-        this.sum = value;
-        this.value = value;
-    }
-
-    /**
      *  Adds an additional value to the metric.
      */
     public void addValue(double value) {
@@ -204,6 +185,17 @@ public class Metric implements Comparable<Metric> {
         return this.value;
     }
 
+    /**
+     *  Initialize the metric value.
+     */
+    public void setValue(double value) {
+        this.count = 1L;
+        this.min = value;
+        this.max = value;
+        this.sum = value;
+        this.value = value;
+    }
+
     public String getMetricName() {
         return this.name;
     }
@@ -259,12 +251,12 @@ public class Metric implements Comparable<Metric> {
         sb.append("|");
         sb.append(this.streamId);
         return String.format("%s -- count: %d -- value: %f -- min: %f -- max: 
%f -- sum: %f",
-                sb.toString(),
-                this.count,
-                this.value,
-                this.min,
-                this.max,
-                this.sum);
+                             sb.toString(),
+                             this.count,
+                             this.value,
+                             this.min,
+                             this.max,
+                             this.sum);
     }
 }
 

http://git-wip-us.apache.org/repos/asf/storm/blob/f1c0bcbe/storm-server/src/main/java/org/apache/storm/metricstore/MetricException.java
----------------------------------------------------------------------
diff --git 
a/storm-server/src/main/java/org/apache/storm/metricstore/MetricException.java 
b/storm-server/src/main/java/org/apache/storm/metricstore/MetricException.java
index e45a451..8236e7f 100644
--- 
a/storm-server/src/main/java/org/apache/storm/metricstore/MetricException.java
+++ 
b/storm-server/src/main/java/org/apache/storm/metricstore/MetricException.java
@@ -1,19 +1,12 @@
 /**
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
+ * Licensed to the Apache Software Foundation (ASF) under one or more 
contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.  The 
ASF licenses this file to you under the Apache License, Version
+ * 2.0 (the "License"); you may not use this file except in compliance with 
the License.  You may obtain a copy of the License at
  * http://www.apache.org/licenses/LICENSE-2.0
  *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations
- * under the License.
+ * Unless required by applicable law or agreed to in writing, software 
distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  
See the License for the specific language governing permissions
+ * and limitations under the License.
  */
 
 package org.apache.storm.metricstore;

http://git-wip-us.apache.org/repos/asf/storm/blob/f1c0bcbe/storm-server/src/main/java/org/apache/storm/metricstore/MetricStore.java
----------------------------------------------------------------------
diff --git 
a/storm-server/src/main/java/org/apache/storm/metricstore/MetricStore.java 
b/storm-server/src/main/java/org/apache/storm/metricstore/MetricStore.java
index d43e11b..71f53a5 100644
--- a/storm-server/src/main/java/org/apache/storm/metricstore/MetricStore.java
+++ b/storm-server/src/main/java/org/apache/storm/metricstore/MetricStore.java
@@ -1,19 +1,12 @@
 /**
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
+ * Licensed to the Apache Software Foundation (ASF) under one or more 
contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.  The 
ASF licenses this file to you under the Apache License, Version
+ * 2.0 (the "License"); you may not use this file except in compliance with 
the License.  You may obtain a copy of the License at
  * http://www.apache.org/licenses/LICENSE-2.0
  *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations
- * under the License.
+ * Unless required by applicable law or agreed to in writing, software 
distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  
See the License for the specific language governing permissions
+ * and limitations under the License.
  */
 
 package org.apache.storm.metricstore;
@@ -42,7 +35,7 @@ public interface MetricStore extends AutoCloseable {
      * Fill out the numeric values for a metric.
      *
      * @param metric  Metric to populate
-     * @return   true if the metric was populated, false otherwise
+     * @return true if the metric was populated, false otherwise
      * @throws MetricException on error
      */
     boolean populateValue(Metric metric) throws MetricException;

http://git-wip-us.apache.org/repos/asf/storm/blob/f1c0bcbe/storm-server/src/main/java/org/apache/storm/metricstore/MetricStoreConfig.java
----------------------------------------------------------------------
diff --git 
a/storm-server/src/main/java/org/apache/storm/metricstore/MetricStoreConfig.java
 
b/storm-server/src/main/java/org/apache/storm/metricstore/MetricStoreConfig.java
index d66529a..42e5a7d 100644
--- 
a/storm-server/src/main/java/org/apache/storm/metricstore/MetricStoreConfig.java
+++ 
b/storm-server/src/main/java/org/apache/storm/metricstore/MetricStoreConfig.java
@@ -1,19 +1,12 @@
 /**
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
+ * Licensed to the Apache Software Foundation (ASF) under one or more 
contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.  The 
ASF licenses this file to you under the Apache License, Version
+ * 2.0 (the "License"); you may not use this file except in compliance with 
the License.  You may obtain a copy of the License at
  * http://www.apache.org/licenses/LICENSE-2.0
  *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations
- * under the License.
+ * Unless required by applicable law or agreed to in writing, software 
distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  
See the License for the specific language governing permissions
+ * and limitations under the License.
  */
 
 package org.apache.storm.metricstore;
@@ -33,7 +26,7 @@ public class MetricStoreConfig {
     public static MetricStore configure(Map<String, Object> conf) throws 
MetricException {
 
         try {
-            String storeClass = 
(String)conf.get(DaemonConfig.STORM_METRIC_STORE_CLASS);
+            String storeClass = (String) 
conf.get(DaemonConfig.STORM_METRIC_STORE_CLASS);
             MetricStore store = (MetricStore) 
(Class.forName(storeClass)).newInstance();
             store.prepare(conf);
             return store;
@@ -51,7 +44,7 @@ public class MetricStoreConfig {
     public static WorkerMetricsProcessor configureMetricProcessor(Map conf) 
throws MetricException {
 
         try {
-            String processorClass = 
(String)conf.get(DaemonConfig.STORM_METRIC_PROCESSOR_CLASS);
+            String processorClass = (String) 
conf.get(DaemonConfig.STORM_METRIC_PROCESSOR_CLASS);
             WorkerMetricsProcessor processor = (WorkerMetricsProcessor) 
(Class.forName(processorClass)).newInstance();
             processor.prepare(conf);
             return processor;

http://git-wip-us.apache.org/repos/asf/storm/blob/f1c0bcbe/storm-server/src/main/java/org/apache/storm/metricstore/NimbusMetricProcessor.java
----------------------------------------------------------------------
diff --git 
a/storm-server/src/main/java/org/apache/storm/metricstore/NimbusMetricProcessor.java
 
b/storm-server/src/main/java/org/apache/storm/metricstore/NimbusMetricProcessor.java
index 0c98208..f3970b8 100644
--- 
a/storm-server/src/main/java/org/apache/storm/metricstore/NimbusMetricProcessor.java
+++ 
b/storm-server/src/main/java/org/apache/storm/metricstore/NimbusMetricProcessor.java
@@ -1,19 +1,12 @@
 /**
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
+ * Licensed to the Apache Software Foundation (ASF) under one or more 
contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.  The 
ASF licenses this file to you under the Apache License, Version
+ * 2.0 (the "License"); you may not use this file except in compliance with 
the License.  You may obtain a copy of the License at
  * http://www.apache.org/licenses/LICENSE-2.0
  *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations
- * under the License.
+ * Unless required by applicable law or agreed to in writing, software 
distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  
See the License for the specific language governing permissions
+ * and limitations under the License.
  */
 
 package org.apache.storm.metricstore;
@@ -26,7 +19,7 @@ import org.apache.thrift.TException;
 /**
  * Implementation of WorkerMetricsProcessor that sends metric data to Nimbus 
for processing.
  */
-public class NimbusMetricProcessor implements  WorkerMetricsProcessor {
+public class NimbusMetricProcessor implements WorkerMetricsProcessor {
     @Override
     public void processWorkerMetrics(Map<String, Object> conf, WorkerMetrics 
metrics) throws MetricException {
         try (NimbusClient client = NimbusClient.getConfiguredClient(conf)) {

http://git-wip-us.apache.org/repos/asf/storm/blob/f1c0bcbe/storm-server/src/main/java/org/apache/storm/metricstore/WorkerMetricsProcessor.java
----------------------------------------------------------------------
diff --git 
a/storm-server/src/main/java/org/apache/storm/metricstore/WorkerMetricsProcessor.java
 
b/storm-server/src/main/java/org/apache/storm/metricstore/WorkerMetricsProcessor.java
index 98c1163..5a59473 100644
--- 
a/storm-server/src/main/java/org/apache/storm/metricstore/WorkerMetricsProcessor.java
+++ 
b/storm-server/src/main/java/org/apache/storm/metricstore/WorkerMetricsProcessor.java
@@ -1,19 +1,12 @@
 /**
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
+ * Licensed to the Apache Software Foundation (ASF) under one or more 
contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.  The 
ASF licenses this file to you under the Apache License, Version
+ * 2.0 (the "License"); you may not use this file except in compliance with 
the License.  You may obtain a copy of the License at
  * http://www.apache.org/licenses/LICENSE-2.0
  *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations
- * under the License.
+ * Unless required by applicable law or agreed to in writing, software 
distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  
See the License for the specific language governing permissions
+ * and limitations under the License.
  */
 
 package org.apache.storm.metricstore;

http://git-wip-us.apache.org/repos/asf/storm/blob/f1c0bcbe/storm-server/src/main/java/org/apache/storm/metricstore/rocksdb/KeyType.java
----------------------------------------------------------------------
diff --git 
a/storm-server/src/main/java/org/apache/storm/metricstore/rocksdb/KeyType.java 
b/storm-server/src/main/java/org/apache/storm/metricstore/rocksdb/KeyType.java
index a351be7..8f65591 100644
--- 
a/storm-server/src/main/java/org/apache/storm/metricstore/rocksdb/KeyType.java
+++ 
b/storm-server/src/main/java/org/apache/storm/metricstore/rocksdb/KeyType.java
@@ -1,19 +1,12 @@
 /**
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
+ * Licensed to the Apache Software Foundation (ASF) under one or more 
contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.  The 
ASF licenses this file to you under the Apache License, Version
+ * 2.0 (the "License"); you may not use this file except in compliance with 
the License.  You may obtain a copy of the License at
  * http://www.apache.org/licenses/LICENSE-2.0
  *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations
- * under the License.
+ * Unless required by applicable law or agreed to in writing, software 
distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  
See the License for the specific language governing permissions
+ * and limitations under the License.
  */
 
 package org.apache.storm.metricstore.rocksdb;
@@ -38,7 +31,6 @@ public enum KeyType {
     METADATA_STRING_END(7),
     METRIC_DATA(0x80);
 
-    private final byte value;
     private static Map<Byte, KeyType> MAP;
 
     static {
@@ -49,12 +41,10 @@ public enum KeyType {
         MAP = Collections.unmodifiableMap(MAP);
     }
 
-    KeyType(int value) {
-        this.value = (byte)value;
-    }
+    private final byte value;
 
-    byte getValue() {
-        return this.value;
+    KeyType(int value) {
+        this.value = (byte) value;
     }
 
     static KeyType getKeyType(byte value) {
@@ -65,6 +55,10 @@ public enum KeyType {
             return type;
         }
     }
+
+    byte getValue() {
+        return this.value;
+    }
 }
 
 

http://git-wip-us.apache.org/repos/asf/storm/blob/f1c0bcbe/storm-server/src/main/java/org/apache/storm/metricstore/rocksdb/MetricsCleaner.java
----------------------------------------------------------------------
diff --git 
a/storm-server/src/main/java/org/apache/storm/metricstore/rocksdb/MetricsCleaner.java
 
b/storm-server/src/main/java/org/apache/storm/metricstore/rocksdb/MetricsCleaner.java
index 6618f5d..07fe862 100644
--- 
a/storm-server/src/main/java/org/apache/storm/metricstore/rocksdb/MetricsCleaner.java
+++ 
b/storm-server/src/main/java/org/apache/storm/metricstore/rocksdb/MetricsCleaner.java
@@ -1,19 +1,12 @@
 /**
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
+ * Licensed to the Apache Software Foundation (ASF) under one or more 
contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.  The 
ASF licenses this file to you under the Apache License, Version
+ * 2.0 (the "License"); you may not use this file except in compliance with 
the License.  You may obtain a copy of the License at
  * http://www.apache.org/licenses/LICENSE-2.0
  *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations
- * under the License.
+ * Unless required by applicable law or agreed to in writing, software 
distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  
See the License for the specific language governing permissions
+ * and limitations under the License.
  */
 
 package org.apache.storm.metricstore.rocksdb;

http://git-wip-us.apache.org/repos/asf/storm/blob/f1c0bcbe/storm-server/src/main/java/org/apache/storm/metricstore/rocksdb/ReadOnlyStringMetadataCache.java
----------------------------------------------------------------------
diff --git 
a/storm-server/src/main/java/org/apache/storm/metricstore/rocksdb/ReadOnlyStringMetadataCache.java
 
b/storm-server/src/main/java/org/apache/storm/metricstore/rocksdb/ReadOnlyStringMetadataCache.java
index 0effbc4..11d82b7 100644
--- 
a/storm-server/src/main/java/org/apache/storm/metricstore/rocksdb/ReadOnlyStringMetadataCache.java
+++ 
b/storm-server/src/main/java/org/apache/storm/metricstore/rocksdb/ReadOnlyStringMetadataCache.java
@@ -1,19 +1,12 @@
 /**
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
+ * Licensed to the Apache Software Foundation (ASF) under one or more 
contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.  The 
ASF licenses this file to you under the Apache License, Version
+ * 2.0 (the "License"); you may not use this file except in compliance with 
the License.  You may obtain a copy of the License at
  * http://www.apache.org/licenses/LICENSE-2.0
  *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations
- * under the License.
+ * Unless required by applicable law or agreed to in writing, software 
distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  
See the License for the specific language governing permissions
+ * and limitations under the License.
  */
 
 package org.apache.storm.metricstore.rocksdb;
@@ -30,7 +23,7 @@ public interface ReadOnlyStringMetadataCache {
      * Get the string metadata from the cache.
      *
      * @param s   The string to look for
-     * @return   the metadata associated with the string or null if not found
+     * @return the metadata associated with the string or null if not found
      */
     StringMetadata get(String s);
 
@@ -38,7 +31,7 @@ public interface ReadOnlyStringMetadataCache {
      * Returns the string matching the string Id if in the cache.
      *
      * @param stringId   The string Id to check
-     * @return   the associated string if the Id is in the cache, null 
otherwise
+     * @return the associated string if the Id is in the cache, null otherwise
      */
     String getMetadataString(Integer stringId);
 
@@ -46,7 +39,7 @@ public interface ReadOnlyStringMetadataCache {
      * Determines if a string Id is contained in the cache.
      *
      * @param stringId   The string Id to check
-     * @return   true if the Id is in the cache, false otherwise
+     * @return true if the Id is in the cache, false otherwise
      */
     boolean contains(Integer stringId);
 }

http://git-wip-us.apache.org/repos/asf/storm/blob/f1c0bcbe/storm-server/src/main/java/org/apache/storm/metricstore/rocksdb/RocksDbKey.java
----------------------------------------------------------------------
diff --git 
a/storm-server/src/main/java/org/apache/storm/metricstore/rocksdb/RocksDbKey.java
 
b/storm-server/src/main/java/org/apache/storm/metricstore/rocksdb/RocksDbKey.java
index 7868282..fffcaf1 100644
--- 
a/storm-server/src/main/java/org/apache/storm/metricstore/rocksdb/RocksDbKey.java
+++ 
b/storm-server/src/main/java/org/apache/storm/metricstore/rocksdb/RocksDbKey.java
@@ -1,19 +1,12 @@
 /**
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
+ * Licensed to the Apache Software Foundation (ASF) under one or more 
contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.  The 
ASF licenses this file to you under the Apache License, Version
+ * 2.0 (the "License"); you may not use this file except in compliance with 
the License.  You may obtain a copy of the License at
  * http://www.apache.org/licenses/LICENSE-2.0
  *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations
- * under the License.
+ * Unless required by applicable law or agreed to in writing, software 
distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  
See the License for the specific language governing permissions
+ * and limitations under the License.
  */
 
 package org.apache.storm.metricstore.rocksdb;
@@ -51,10 +44,9 @@ import org.slf4j.LoggerFactory;
  * </pre>
  */
 public class RocksDbKey implements Comparable<RocksDbKey> {
-    private static final Logger LOG = 
LoggerFactory.getLogger(RocksDbKey.class);
     static final int KEY_SIZE = 38;
+    private static final Logger LOG = 
LoggerFactory.getLogger(RocksDbKey.class);
     private static Map<Byte, RocksDbKey> PREFIX_MAP = new HashMap<>();
-    private byte[] key;
 
     static {
         // pregenerate commonly used keys for scans
@@ -65,6 +57,8 @@ public class RocksDbKey implements Comparable<RocksDbKey> {
         PREFIX_MAP = Collections.unmodifiableMap(PREFIX_MAP);
     }
 
+    private byte[] key;
+
     /**
      * Constructor for a RocksDB key for a metadata string.
      *
@@ -94,56 +88,16 @@ public class RocksDbKey implements Comparable<RocksDbKey> {
      * Get a zeroed key of the specified type.
      *
      * @param type  the desired type
-     * @return  a key of the desired type
+     * @return a key of the desired type
      */
     static RocksDbKey getPrefix(KeyType type) {
         return PREFIX_MAP.get(type.getValue());
     }
 
     /**
-     * get the metadata string Id portion of the key for metadata keys.
-     *
-     * @return  the metadata string Id
-     * @throws  RuntimeException  if the key is not a metadata type
-     */
-    int getMetadataStringId() {
-        if (this.getType().getValue() < 
KeyType.METADATA_STRING_END.getValue()) {
-            return ByteBuffer.wrap(key, 2, 4).getInt();
-        } else {
-            throw new RuntimeException("Cannot fetch metadata string for key 
of type " + this.getType());
-        }
-    }
-
-    /**
-     * get the raw key bytes
-     */
-    byte[] getRaw() {
-        return this.key;
-    }
-
-    /**
-     * get the type of key.
-     *
-     * @return  the type of key
-     */
-    KeyType getType() {
-        return KeyType.getKeyType(key[0]);
-    }
-
-    /**
-     * compares to keys on a byte by byte basis.
-     *
-     * @return  comparison of key byte values
-     */
-    @Override
-    public int compareTo(RocksDbKey o) {
-        return 
UnsignedBytes.lexicographicalComparator().compare(this.getRaw(), o.getRaw());
-    }
-
-    /**
      * gets the first possible key value for the desired key type.
      *
-     * @return  the initial key
+     * @return the initial key
      */
     static RocksDbKey getInitialKey(KeyType type) {
         return PREFIX_MAP.get(type.getValue());
@@ -152,17 +106,17 @@ public class RocksDbKey implements Comparable<RocksDbKey> 
{
     /**
      * gets the key just larger than the last possible key value for the 
desired key type.
      *
-     * @return  the last key
+     * @return the last key
      */
     static RocksDbKey getLastKey(KeyType type) {
-        byte value = (byte)(type.getValue() + 1);
+        byte value = (byte) (type.getValue() + 1);
         return PREFIX_MAP.get(value);
     }
 
     /**
      * Creates a metric key with the desired properties.
      *
-     * @return  the generated key
+     * @return the generated key
      */
     static RocksDbKey createMetricKey(AggLevel aggLevel, int topologyId, long 
metricTimestamp, int metricId,
                                       int componentId, int executorId, int 
hostId, int port,
@@ -185,6 +139,46 @@ public class RocksDbKey implements Comparable<RocksDbKey> {
     }
 
     /**
+     * get the metadata string Id portion of the key for metadata keys.
+     *
+     * @return the metadata string Id
+     * @throws RuntimeException  if the key is not a metadata type
+     */
+    int getMetadataStringId() {
+        if (this.getType().getValue() < 
KeyType.METADATA_STRING_END.getValue()) {
+            return ByteBuffer.wrap(key, 2, 4).getInt();
+        } else {
+            throw new RuntimeException("Cannot fetch metadata string for key 
of type " + this.getType());
+        }
+    }
+
+    /**
+     * get the raw key bytes
+     */
+    byte[] getRaw() {
+        return this.key;
+    }
+
+    /**
+     * get the type of key.
+     *
+     * @return the type of key
+     */
+    KeyType getType() {
+        return KeyType.getKeyType(key[0]);
+    }
+
+    /**
+     * compares to keys on a byte by byte basis.
+     *
+     * @return comparison of key byte values
+     */
+    @Override
+    public int compareTo(RocksDbKey o) {
+        return 
UnsignedBytes.lexicographicalComparator().compare(this.getRaw(), o.getRaw());
+    }
+
+    /**
      * Get the unique string Id for a metric's topologyId.
      */
     int getTopologyId() {

http://git-wip-us.apache.org/repos/asf/storm/blob/f1c0bcbe/storm-server/src/main/java/org/apache/storm/metricstore/rocksdb/RocksDbMetricsWriter.java
----------------------------------------------------------------------
diff --git 
a/storm-server/src/main/java/org/apache/storm/metricstore/rocksdb/RocksDbMetricsWriter.java
 
b/storm-server/src/main/java/org/apache/storm/metricstore/rocksdb/RocksDbMetricsWriter.java
index a050a76..7a30bcc 100644
--- 
a/storm-server/src/main/java/org/apache/storm/metricstore/rocksdb/RocksDbMetricsWriter.java
+++ 
b/storm-server/src/main/java/org/apache/storm/metricstore/rocksdb/RocksDbMetricsWriter.java
@@ -1,25 +1,17 @@
 /**
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
+ * Licensed to the Apache Software Foundation (ASF) under one or more 
contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.  The 
ASF licenses this file to you under the Apache License, Version
+ * 2.0 (the "License"); you may not use this file except in compliance with 
the License.  You may obtain a copy of the License at
  * http://www.apache.org/licenses/LICENSE-2.0
  *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations
- * under the License.
+ * Unless required by applicable law or agreed to in writing, software 
distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  
See the License for the specific language governing permissions
+ * and limitations under the License.
  */
 
 package org.apache.storm.metricstore.rocksdb;
 
 import com.codahale.metrics.Meter;
-
 import java.util.ArrayList;
 import java.util.HashSet;
 import java.util.ListIterator;
@@ -28,7 +20,6 @@ import java.util.Set;
 import java.util.TreeMap;
 import java.util.concurrent.BlockingQueue;
 import java.util.concurrent.ThreadLocalRandom;
-
 import org.apache.http.annotation.NotThreadSafe;
 import org.apache.storm.metricstore.AggLevel;
 import org.apache.storm.metricstore.Metric;
@@ -79,7 +70,7 @@ public class RocksDbMetricsWriter implements Runnable, 
AutoCloseable {
      * @param store   The RocksDB store
      * @param queue   The queue to receive metrics for insertion
      */
-    RocksDbMetricsWriter(RocksDbStore store, BlockingQueue queue, Meter 
failureMeter)  {
+    RocksDbMetricsWriter(RocksDbStore store, BlockingQueue queue, Meter 
failureMeter) {
         this.store = store;
         this.queue = queue;
         this.failureMeter = failureMeter;
@@ -134,7 +125,7 @@ public class RocksDbMetricsWriter implements Runnable, 
AutoCloseable {
         Integer streamId = storeMetadataString(KeyType.STREAM_ID_STRING, 
metric.getStreamId(), metricTimestamp);
 
         RocksDbKey key = RocksDbKey.createMetricKey(AggLevel.AGG_LEVEL_NONE, 
topologyId, metric.getTimestamp(), metricId,
-                componentId, executorId, hostId, metric.getPort(), streamId);
+                                                    componentId, executorId, 
hostId, metric.getPort(), streamId);
 
         // save metric key/value to be batched
         RocksDbValue value = new RocksDbValue(metric);
@@ -146,7 +137,7 @@ public class RocksDbMetricsWriter implements Runnable, 
AutoCloseable {
         ListIterator li = aggBuckets.listIterator(aggBuckets.size());
         boolean populate = true;
         while (li.hasPrevious()) {
-            AggLevel bucket = (AggLevel)li.previous();
+            AggLevel bucket = (AggLevel) li.previous();
             Metric aggMetric = new Metric(metric);
             aggMetric.setAggLevel(bucket);
 
@@ -155,7 +146,7 @@ public class RocksDbMetricsWriter implements Runnable, 
AutoCloseable {
             aggMetric.setTimestamp(roundedToBucket);
 
             RocksDbKey aggKey = RocksDbKey.createMetricKey(bucket, topologyId, 
aggMetric.getTimestamp(), metricId,
-                    componentId, executorId, hostId, aggMetric.getPort(), 
streamId);
+                                                           componentId, 
executorId, hostId, aggMetric.getPort(), streamId);
 
             if (populate) {
                 // retrieve any existing aggregation matching this one and 
update the values
@@ -217,7 +208,7 @@ public class RocksDbMetricsWriter implements Runnable, 
AutoCloseable {
         generateUniqueStringIds();
         int id = unusedIds.iterator().next();
         unusedIds.remove(id);
-        return  id;
+        return id;
     }
 
     // guarantees a list of unused string Ids exists.  Once the list is empty, 
creates a new list
@@ -290,8 +281,8 @@ public class RocksDbMetricsWriter implements Runnable, 
AutoCloseable {
         // get all metadata from the cache to put into the database
         TreeMap<RocksDbKey, RocksDbValue> batchMap = new TreeMap<>();  // use 
a new map to prevent threading issues with writer thread
         for (Map.Entry entry : stringMetadataCache.entrySet()) {
-            String metadataString = (String)entry.getKey();
-            StringMetadata val = (StringMetadata)entry.getValue();
+            String metadataString = (String) entry.getKey();
+            StringMetadata val = (StringMetadata) entry.getValue();
             RocksDbValue rval = new RocksDbValue(val.getLastTimestamp(), 
metadataString);
 
             for (KeyType type : val.getMetadataTypes()) {   // save the 
metadata for all types of strings it matches

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