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Posted to dev@unomi.apache.org by sh...@apache.org on 2018/02/19 14:24:00 UTC

incubator-unomi git commit: UNOMI-161 Rename callee to caller

Repository: incubator-unomi
Updated Branches:
  refs/heads/master 384ed0262 -> 53ea767d0


UNOMI-161 Rename callee to caller

Signed-off-by: Serge Huber <sh...@apache.org>


Project: http://git-wip-us.apache.org/repos/asf/incubator-unomi/repo
Commit: http://git-wip-us.apache.org/repos/asf/incubator-unomi/commit/53ea767d
Tree: http://git-wip-us.apache.org/repos/asf/incubator-unomi/tree/53ea767d
Diff: http://git-wip-us.apache.org/repos/asf/incubator-unomi/diff/53ea767d

Branch: refs/heads/master
Commit: 53ea767d08bb4579abe13b4e5a6eef87c87bf1bf
Parents: 384ed02
Author: Serge Huber <sh...@apache.org>
Authored: Mon Feb 19 15:22:07 2018 +0100
Committer: Serge Huber <sh...@apache.org>
Committed: Mon Feb 19 15:23:48 2018 +0100

----------------------------------------------------------------------
 .../org/apache/unomi/metrics/CalleeCount.java   | 29 ---------
 .../org/apache/unomi/metrics/CallerCount.java   | 29 +++++++++
 .../java/org/apache/unomi/metrics/Metric.java   |  2 +-
 .../apache/unomi/metrics/MetricsService.java    | 15 ++++-
 .../metrics/commands/CalleeStatusCommand.java   | 64 -------------------
 .../metrics/commands/CallerStatusCommand.java   | 64 +++++++++++++++++++
 .../unomi/metrics/commands/ListCommand.java     | 14 ++---
 .../unomi/metrics/commands/ViewCommand.java     |  2 +-
 .../unomi/metrics/internal/CalleeCountImpl.java | 66 --------------------
 .../unomi/metrics/internal/CallerCountImpl.java | 66 ++++++++++++++++++++
 .../unomi/metrics/internal/MetricImpl.java      |  9 ++-
 .../metrics/internal/MetricsServiceImpl.java    | 44 ++++++-------
 .../resources/OSGI-INF/blueprint/blueprint.xml  |  2 +-
 .../metrics/internal/MetricsServiceTest.java    | 23 ++++---
 14 files changed, 219 insertions(+), 210 deletions(-)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/incubator-unomi/blob/53ea767d/metrics/src/main/java/org/apache/unomi/metrics/CalleeCount.java
----------------------------------------------------------------------
diff --git a/metrics/src/main/java/org/apache/unomi/metrics/CalleeCount.java b/metrics/src/main/java/org/apache/unomi/metrics/CalleeCount.java
deleted file mode 100644
index 3552b12..0000000
--- a/metrics/src/main/java/org/apache/unomi/metrics/CalleeCount.java
+++ /dev/null
@@ -1,29 +0,0 @@
-/*
- * 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.
- */
-package org.apache.unomi.metrics;
-
-import java.util.List;
-
-public interface CalleeCount {
-
-    String getHash();
-    List<String> getCallee();
-    long getCount();
-    long incCount();
-    long getTotalTime();
-    long addTime(long time);
-}

http://git-wip-us.apache.org/repos/asf/incubator-unomi/blob/53ea767d/metrics/src/main/java/org/apache/unomi/metrics/CallerCount.java
----------------------------------------------------------------------
diff --git a/metrics/src/main/java/org/apache/unomi/metrics/CallerCount.java b/metrics/src/main/java/org/apache/unomi/metrics/CallerCount.java
new file mode 100644
index 0000000..c0fedcf
--- /dev/null
+++ b/metrics/src/main/java/org/apache/unomi/metrics/CallerCount.java
@@ -0,0 +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
+ *
+ *      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.
+ */
+package org.apache.unomi.metrics;
+
+import java.util.List;
+
+public interface CallerCount {
+
+    String getHash();
+    List<String> getCaller();
+    long getCount();
+    long incCount();
+    long getTotalTime();
+    long addTime(long time);
+}

http://git-wip-us.apache.org/repos/asf/incubator-unomi/blob/53ea767d/metrics/src/main/java/org/apache/unomi/metrics/Metric.java
----------------------------------------------------------------------
diff --git a/metrics/src/main/java/org/apache/unomi/metrics/Metric.java b/metrics/src/main/java/org/apache/unomi/metrics/Metric.java
index 556fb20..7965340 100644
--- a/metrics/src/main/java/org/apache/unomi/metrics/Metric.java
+++ b/metrics/src/main/java/org/apache/unomi/metrics/Metric.java
@@ -28,6 +28,6 @@ public interface Metric {
     long getTotalTime();
     long addTotalTime(long time);
 
-    Map<String,CalleeCount> getCalleeCounts();
+    Map<String,CallerCount> getCallerCounts();
 
 }

http://git-wip-us.apache.org/repos/asf/incubator-unomi/blob/53ea767d/metrics/src/main/java/org/apache/unomi/metrics/MetricsService.java
----------------------------------------------------------------------
diff --git a/metrics/src/main/java/org/apache/unomi/metrics/MetricsService.java b/metrics/src/main/java/org/apache/unomi/metrics/MetricsService.java
index 5fd0d3c..5ad1a60 100644
--- a/metrics/src/main/java/org/apache/unomi/metrics/MetricsService.java
+++ b/metrics/src/main/java/org/apache/unomi/metrics/MetricsService.java
@@ -18,17 +18,26 @@ package org.apache.unomi.metrics;
 
 import java.util.Map;
 
+/**
+ * This is the main interface for the metrics service, that makes it possible to count calls, callers and accumulated
+ * times for sections of code.
+ */
 public interface MetricsService {
 
+    /**
+     * Enables or disables the metrics service.
+     * @param activated if true the metrics service will be activated, false will deactivate it and clear any exists
+     *                  in-memory metrics
+     */
     void setActivated(boolean activated);
 
     boolean isActivated();
 
-    Map<String,Boolean> getCalleesStatus();
+    Map<String,Boolean> getCallersStatus();
 
-    void setCalleeActivated(String timerName, boolean activated);
+    void setCallerActivated(String timerName, boolean activated);
 
-    boolean isCalleeActivated(String timerName);
+    boolean isCallerActivated(String timerName);
 
     Map<String,Metric> getMetrics();
 

http://git-wip-us.apache.org/repos/asf/incubator-unomi/blob/53ea767d/metrics/src/main/java/org/apache/unomi/metrics/commands/CalleeStatusCommand.java
----------------------------------------------------------------------
diff --git a/metrics/src/main/java/org/apache/unomi/metrics/commands/CalleeStatusCommand.java b/metrics/src/main/java/org/apache/unomi/metrics/commands/CalleeStatusCommand.java
deleted file mode 100644
index 5aec628..0000000
--- a/metrics/src/main/java/org/apache/unomi/metrics/commands/CalleeStatusCommand.java
+++ /dev/null
@@ -1,64 +0,0 @@
-/*
- * 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.
- */
-package org.apache.unomi.metrics.commands;
-
-import org.apache.karaf.shell.commands.Argument;
-import org.apache.karaf.shell.commands.Command;
-import org.apache.karaf.shell.commands.Option;
-import org.apache.karaf.shell.table.Row;
-import org.apache.karaf.shell.table.ShellTable;
-
-import java.util.ArrayList;
-import java.util.List;
-import java.util.Map;
-
-@Command(scope = "metrics", name = "callee-status", description = "This command will list all the callee configurations, or change the callee status of a specific metric")
-public class CalleeStatusCommand extends MetricsCommandSupport {
-
-    @Option(name = "--no-format", description = "Disable table rendered output", required = false, multiValued = false)
-    boolean noFormat;
-
-    @Argument(index = 0, name = "metricName", description = "The identifier for the metric", required = false, multiValued = false)
-    String metricName;
-
-    @Argument(index = 1, name = "status", description = "The new status for the metric's callee tracing", required = false, multiValued = false)
-    Boolean metricStatus;
-
-    @Override
-    protected Object doExecute() throws Exception {
-        if (metricName != null && metricStatus != null) {
-            metricsService.setCalleeActivated(metricName, metricStatus);
-            System.out.println("Metric callees " + metricName + " set to " + metricStatus);
-            return null;
-        }
-        Map<String,Boolean> calleesStatus = metricsService.getCalleesStatus();
-        ShellTable shellTable = new ShellTable();
-        shellTable.column("Metric");
-        shellTable.column("Activated");
-
-        for (Map.Entry<String,Boolean> calleeStatusEntry : calleesStatus.entrySet()) {
-            List<Object> rowData = new ArrayList<Object>();
-            rowData.add(calleeStatusEntry.getKey());
-            rowData.add(calleeStatusEntry.getValue() ? "x" : "");
-            Row row = shellTable.addRow();
-            row.addContent(rowData);
-        }
-
-        shellTable.print(System.out, !noFormat);
-        return null;
-    }
-}

http://git-wip-us.apache.org/repos/asf/incubator-unomi/blob/53ea767d/metrics/src/main/java/org/apache/unomi/metrics/commands/CallerStatusCommand.java
----------------------------------------------------------------------
diff --git a/metrics/src/main/java/org/apache/unomi/metrics/commands/CallerStatusCommand.java b/metrics/src/main/java/org/apache/unomi/metrics/commands/CallerStatusCommand.java
new file mode 100644
index 0000000..ddb571f
--- /dev/null
+++ b/metrics/src/main/java/org/apache/unomi/metrics/commands/CallerStatusCommand.java
@@ -0,0 +1,64 @@
+/*
+ * 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.
+ */
+package org.apache.unomi.metrics.commands;
+
+import org.apache.karaf.shell.commands.Argument;
+import org.apache.karaf.shell.commands.Command;
+import org.apache.karaf.shell.commands.Option;
+import org.apache.karaf.shell.table.Row;
+import org.apache.karaf.shell.table.ShellTable;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+
+@Command(scope = "metrics", name = "caller-status", description = "This command will list all the caller configurations, or change the caller status of a specific metric")
+public class CallerStatusCommand extends MetricsCommandSupport {
+
+    @Option(name = "--no-format", description = "Disable table rendered output", required = false, multiValued = false)
+    boolean noFormat;
+
+    @Argument(index = 0, name = "metricName", description = "The identifier for the metric", required = false, multiValued = false)
+    String metricName;
+
+    @Argument(index = 1, name = "status", description = "The new status for the metric's caller tracing", required = false, multiValued = false)
+    Boolean metricStatus;
+
+    @Override
+    protected Object doExecute() throws Exception {
+        if (metricName != null && metricStatus != null) {
+            metricsService.setCallerActivated(metricName, metricStatus);
+            System.out.println("Metric callers " + metricName + " set to " + metricStatus);
+            return null;
+        }
+        Map<String,Boolean> callersStatus = metricsService.getCallersStatus();
+        ShellTable shellTable = new ShellTable();
+        shellTable.column("Metric");
+        shellTable.column("Activated");
+
+        for (Map.Entry<String,Boolean> callerStatusEntry : callersStatus.entrySet()) {
+            List<Object> rowData = new ArrayList<Object>();
+            rowData.add(callerStatusEntry.getKey());
+            rowData.add(callerStatusEntry.getValue() ? "x" : "");
+            Row row = shellTable.addRow();
+            row.addContent(rowData);
+        }
+
+        shellTable.print(System.out, !noFormat);
+        return null;
+    }
+}

http://git-wip-us.apache.org/repos/asf/incubator-unomi/blob/53ea767d/metrics/src/main/java/org/apache/unomi/metrics/commands/ListCommand.java
----------------------------------------------------------------------
diff --git a/metrics/src/main/java/org/apache/unomi/metrics/commands/ListCommand.java b/metrics/src/main/java/org/apache/unomi/metrics/commands/ListCommand.java
index 861bb3c..824ed3e 100644
--- a/metrics/src/main/java/org/apache/unomi/metrics/commands/ListCommand.java
+++ b/metrics/src/main/java/org/apache/unomi/metrics/commands/ListCommand.java
@@ -18,12 +18,10 @@ package org.apache.unomi.metrics.commands;
 
 import org.apache.karaf.shell.commands.Command;
 import org.apache.karaf.shell.commands.Option;
-import org.apache.karaf.shell.console.OsgiCommandSupport;
 import org.apache.karaf.shell.table.Row;
 import org.apache.karaf.shell.table.ShellTable;
 import org.apache.unomi.common.DataTable;
 import org.apache.unomi.metrics.Metric;
-import org.apache.unomi.metrics.MetricsService;
 
 import java.util.ArrayList;
 import java.util.List;
@@ -47,7 +45,7 @@ public class ListCommand extends MetricsCommandSupport {
 
         String[] headers = {
                 "Name",
-                "Callees",
+                "Callers",
                 "Count",
                 "Time [ms]"
         };
@@ -55,7 +53,7 @@ public class ListCommand extends MetricsCommandSupport {
         DataTable dataTable = new DataTable();
         for (Map.Entry<String,Metric> metricEntry : metrics.entrySet()) {
             Metric metric = metricEntry.getValue();
-            dataTable.addRow(metric.getName(), metric.getCalleeCounts().size(), metric.getTotalCount(), metric.getTotalTime());
+            dataTable.addRow(metric.getName(), metric.getCallerCounts().size(), metric.getTotalCount(), metric.getTotalTime());
         }
         dataTable.sort(new DataTable.SortCriteria(3, DataTable.SortOrder.DESCENDING),
                 new DataTable.SortCriteria(2, DataTable.SortOrder.DESCENDING),
@@ -67,10 +65,10 @@ public class ListCommand extends MetricsCommandSupport {
         }
 
         ShellTable shellTable = new ShellTable();
-        shellTable.column("Name");
-        shellTable.column("Callees");
-        shellTable.column("Count");
-        shellTable.column("Time [ms]");
+
+        for (String header : headers) {
+            shellTable.column(header);
+        }
 
         for (DataTable.Row dataTableRow :dataTable.getRows()) {
             List<Object> rowData = new ArrayList<Object>();

http://git-wip-us.apache.org/repos/asf/incubator-unomi/blob/53ea767d/metrics/src/main/java/org/apache/unomi/metrics/commands/ViewCommand.java
----------------------------------------------------------------------
diff --git a/metrics/src/main/java/org/apache/unomi/metrics/commands/ViewCommand.java b/metrics/src/main/java/org/apache/unomi/metrics/commands/ViewCommand.java
index 295f1dc..b3cefe8 100644
--- a/metrics/src/main/java/org/apache/unomi/metrics/commands/ViewCommand.java
+++ b/metrics/src/main/java/org/apache/unomi/metrics/commands/ViewCommand.java
@@ -37,7 +37,7 @@ public class ViewCommand extends MetricsCommandSupport{
             return null;
         }
         // by default pretty printer will use spaces between array values, we change this to linefeeds to make
-        // the callee values easier to read.
+        // the caller values easier to read.
         DefaultPrettyPrinter defaultPrettyPrinter = new DefaultPrettyPrinter();
         defaultPrettyPrinter = defaultPrettyPrinter.withArrayIndenter(DefaultIndenter.SYSTEM_LINEFEED_INSTANCE);
         String jsonMetric = CustomObjectMapper.getObjectMapper().writer(defaultPrettyPrinter).writeValueAsString(metric);

http://git-wip-us.apache.org/repos/asf/incubator-unomi/blob/53ea767d/metrics/src/main/java/org/apache/unomi/metrics/internal/CalleeCountImpl.java
----------------------------------------------------------------------
diff --git a/metrics/src/main/java/org/apache/unomi/metrics/internal/CalleeCountImpl.java b/metrics/src/main/java/org/apache/unomi/metrics/internal/CalleeCountImpl.java
deleted file mode 100644
index 14f6094..0000000
--- a/metrics/src/main/java/org/apache/unomi/metrics/internal/CalleeCountImpl.java
+++ /dev/null
@@ -1,66 +0,0 @@
-/*
- * 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.
- */
-package org.apache.unomi.metrics.internal;
-
-import org.apache.unomi.metrics.CalleeCount;
-
-import java.util.List;
-import java.util.concurrent.atomic.AtomicLong;
-
-public class CalleeCountImpl implements CalleeCount {
-
-    private String hash;
-    private List<String> callee;
-    private AtomicLong count = new AtomicLong();
-    private AtomicLong totalTime = new AtomicLong();
-
-    public CalleeCountImpl(String hash, List<String> callee) {
-        this.hash = hash;
-        this.callee = callee;
-    }
-
-    @Override
-    public String getHash() {
-        return hash;
-    }
-
-    @Override
-    public List<String> getCallee() {
-        return callee;
-    }
-
-    @Override
-    public long getCount() {
-        return count.get();
-    }
-
-    @Override
-    public long incCount() {
-        return count.incrementAndGet();
-    }
-
-    @Override
-    public long getTotalTime() {
-        return totalTime.get();
-    }
-
-    @Override
-    public long addTime(long time) {
-        return totalTime.addAndGet(time);
-    }
-
-}

http://git-wip-us.apache.org/repos/asf/incubator-unomi/blob/53ea767d/metrics/src/main/java/org/apache/unomi/metrics/internal/CallerCountImpl.java
----------------------------------------------------------------------
diff --git a/metrics/src/main/java/org/apache/unomi/metrics/internal/CallerCountImpl.java b/metrics/src/main/java/org/apache/unomi/metrics/internal/CallerCountImpl.java
new file mode 100644
index 0000000..31d5a55
--- /dev/null
+++ b/metrics/src/main/java/org/apache/unomi/metrics/internal/CallerCountImpl.java
@@ -0,0 +1,66 @@
+/*
+ * 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.
+ */
+package org.apache.unomi.metrics.internal;
+
+import org.apache.unomi.metrics.CallerCount;
+
+import java.util.List;
+import java.util.concurrent.atomic.AtomicLong;
+
+public class CallerCountImpl implements CallerCount {
+
+    private String hash;
+    private List<String> caller;
+    private AtomicLong count = new AtomicLong();
+    private AtomicLong totalTime = new AtomicLong();
+
+    public CallerCountImpl(String hash, List<String> caller) {
+        this.hash = hash;
+        this.caller = caller;
+    }
+
+    @Override
+    public String getHash() {
+        return hash;
+    }
+
+    @Override
+    public List<String> getCaller() {
+        return caller;
+    }
+
+    @Override
+    public long getCount() {
+        return count.get();
+    }
+
+    @Override
+    public long incCount() {
+        return count.incrementAndGet();
+    }
+
+    @Override
+    public long getTotalTime() {
+        return totalTime.get();
+    }
+
+    @Override
+    public long addTime(long time) {
+        return totalTime.addAndGet(time);
+    }
+
+}

http://git-wip-us.apache.org/repos/asf/incubator-unomi/blob/53ea767d/metrics/src/main/java/org/apache/unomi/metrics/internal/MetricImpl.java
----------------------------------------------------------------------
diff --git a/metrics/src/main/java/org/apache/unomi/metrics/internal/MetricImpl.java b/metrics/src/main/java/org/apache/unomi/metrics/internal/MetricImpl.java
index 76d6bf5..d836ab6 100644
--- a/metrics/src/main/java/org/apache/unomi/metrics/internal/MetricImpl.java
+++ b/metrics/src/main/java/org/apache/unomi/metrics/internal/MetricImpl.java
@@ -16,19 +16,18 @@
  */
 package org.apache.unomi.metrics.internal;
 
-import org.apache.unomi.metrics.CalleeCount;
+import org.apache.unomi.metrics.CallerCount;
 import org.apache.unomi.metrics.Metric;
 
 import java.util.Map;
 import java.util.concurrent.ConcurrentHashMap;
-import java.util.concurrent.atomic.AtomicLong;
 
 public class MetricImpl implements Metric {
 
     private String name;
     private long totalCount = 0L;
     private long totalTime = 0L;
-    private Map<String,CalleeCount> calleeCounts = new ConcurrentHashMap<String, CalleeCount>();
+    private Map<String,CallerCount> callerCounts = new ConcurrentHashMap<String, CallerCount>();
 
     public MetricImpl(String name) {
         this.name = name;
@@ -60,7 +59,7 @@ public class MetricImpl implements Metric {
     }
 
     @Override
-    public Map<String, CalleeCount> getCalleeCounts() {
-        return calleeCounts;
+    public Map<String, CallerCount> getCallerCounts() {
+        return callerCounts;
     }
 }

http://git-wip-us.apache.org/repos/asf/incubator-unomi/blob/53ea767d/metrics/src/main/java/org/apache/unomi/metrics/internal/MetricsServiceImpl.java
----------------------------------------------------------------------
diff --git a/metrics/src/main/java/org/apache/unomi/metrics/internal/MetricsServiceImpl.java b/metrics/src/main/java/org/apache/unomi/metrics/internal/MetricsServiceImpl.java
index ea16ad3..1a7688a 100644
--- a/metrics/src/main/java/org/apache/unomi/metrics/internal/MetricsServiceImpl.java
+++ b/metrics/src/main/java/org/apache/unomi/metrics/internal/MetricsServiceImpl.java
@@ -16,7 +16,7 @@
  */
 package org.apache.unomi.metrics.internal;
 
-import org.apache.unomi.metrics.CalleeCount;
+import org.apache.unomi.metrics.CallerCount;
 import org.apache.unomi.metrics.Metric;
 import org.apache.unomi.metrics.MetricsService;
 
@@ -29,7 +29,7 @@ public class MetricsServiceImpl implements MetricsService {
 
     boolean activated = false;
     Map<String,Metric> metrics = new ConcurrentHashMap<String,Metric>();
-    Map<String,Boolean> calleesStatus = new ConcurrentHashMap<>();
+    Map<String,Boolean> callersStatus = new ConcurrentHashMap<>();
 
     public void setActivated(boolean activated) {
         this.activated = activated;
@@ -65,7 +65,7 @@ public class MetricsServiceImpl implements MetricsService {
         }
         metric.incTotalCount();
         metric.addTotalTime(totalTime);
-        if (isCalleeActivated(timerName)) {
+        if (isCallerActivated(timerName)) {
             StackTraceElement[] stackTraceElements = new Throwable().getStackTrace();
             List<String> stackTraces = new ArrayList<String>();
             if (stackTraceElements != null && stackTraceElements.length > 2) {
@@ -74,43 +74,43 @@ public class MetricsServiceImpl implements MetricsService {
                     stackTraces.add(String.valueOf(stackTraceElements[i]));
                 }
                 String stackTraceHash = Integer.toString(stackTraces.hashCode());
-                CalleeCount calleeCount = metric.getCalleeCounts().get(stackTraceHash);
-                if (calleeCount == null) {
-                    calleeCount = new CalleeCountImpl(stackTraceHash, stackTraces);
-                    calleeCount.incCount();
-                    calleeCount.addTime(totalTime);
-                    metric.getCalleeCounts().put(stackTraceHash, calleeCount);
+                CallerCount callerCount = metric.getCallerCounts().get(stackTraceHash);
+                if (callerCount == null) {
+                    callerCount = new CallerCountImpl(stackTraceHash, stackTraces);
+                    callerCount.incCount();
+                    callerCount.addTime(totalTime);
+                    metric.getCallerCounts().put(stackTraceHash, callerCount);
                 } else {
-                    calleeCount.incCount();
-                    calleeCount.addTime(totalTime);
+                    callerCount.incCount();
+                    callerCount.addTime(totalTime);
                 }
             }
         }
     }
 
     @Override
-    public Map<String, Boolean> getCalleesStatus() {
-        return calleesStatus;
+    public Map<String, Boolean> getCallersStatus() {
+        return callersStatus;
     }
 
     @Override
-    public void setCalleeActivated(String timerName, boolean activated) {
+    public void setCallerActivated(String timerName, boolean activated) {
         if (!activated) {
-            if (calleesStatus.containsKey(timerName)) {
-                calleesStatus.remove(timerName);
+            if (callersStatus.containsKey(timerName)) {
+                callersStatus.remove(timerName);
             }
         } else {
-            calleesStatus.put(timerName, true);
+            callersStatus.put(timerName, true);
         }
     }
 
     @Override
-    public boolean isCalleeActivated(String timerName) {
-        if (calleesStatus.containsKey(timerName)) {
-            return calleesStatus.get(timerName);
+    public boolean isCallerActivated(String timerName) {
+        if (callersStatus.containsKey(timerName)) {
+            return callersStatus.get(timerName);
         }
-        if (calleesStatus.containsKey("*")) {
-            return calleesStatus.get("*");
+        if (callersStatus.containsKey("*")) {
+            return callersStatus.get("*");
         }
         return false;
     }

http://git-wip-us.apache.org/repos/asf/incubator-unomi/blob/53ea767d/metrics/src/main/resources/OSGI-INF/blueprint/blueprint.xml
----------------------------------------------------------------------
diff --git a/metrics/src/main/resources/OSGI-INF/blueprint/blueprint.xml b/metrics/src/main/resources/OSGI-INF/blueprint/blueprint.xml
index 7e3b58b..3a08888 100644
--- a/metrics/src/main/resources/OSGI-INF/blueprint/blueprint.xml
+++ b/metrics/src/main/resources/OSGI-INF/blueprint/blueprint.xml
@@ -67,7 +67,7 @@
             </shell:action>
         </shell:command>
         <shell:command>
-            <shell:action class="org.apache.unomi.metrics.commands.CalleeStatusCommand">
+            <shell:action class="org.apache.unomi.metrics.commands.CallerStatusCommand">
                 <shell:property name="metricsService" ref="metricsServiceImpl" />
             </shell:action>
         </shell:command>

http://git-wip-us.apache.org/repos/asf/incubator-unomi/blob/53ea767d/metrics/src/test/java/org/apache/unomi/metrics/internal/MetricsServiceTest.java
----------------------------------------------------------------------
diff --git a/metrics/src/test/java/org/apache/unomi/metrics/internal/MetricsServiceTest.java b/metrics/src/test/java/org/apache/unomi/metrics/internal/MetricsServiceTest.java
index b293599..033d0e6 100644
--- a/metrics/src/test/java/org/apache/unomi/metrics/internal/MetricsServiceTest.java
+++ b/metrics/src/test/java/org/apache/unomi/metrics/internal/MetricsServiceTest.java
@@ -24,7 +24,10 @@ import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.List;
 import java.util.Random;
-import java.util.concurrent.*;
+import java.util.concurrent.Callable;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
+import java.util.concurrent.Future;
 
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertNotEquals;
@@ -79,32 +82,32 @@ public class MetricsServiceTest {
         assertEquals("Metrics should be empty", 0, metricsService.getMetrics().size());
         System.out.println("Free memory=" + humanReadableByteCount(Runtime.getRuntime().freeMemory(), false));
 
-        System.out.println("Testing with metrics activated (but no callees)...");
+        System.out.println("Testing with metrics activated (but no callers)...");
         todo.clear();
         metricsService.setActivated(true);
-        assertEquals("Callees should be completely empty", metricsService.getCalleesStatus().size(), 0);
+        assertEquals("Callers should be completely empty", metricsService.getCallersStatus().size(), 0);
         long withMetricsStartTime = System.currentTimeMillis();
         for (int i = 0; i < workerCount; i++) {
             todo.add(new Worker(metricsService, "worker-" + i, 1000+ random.nextInt(1000)));
         }
         answers = executorService.invokeAll(todo);
         long withMetricsTotalTime = System.currentTimeMillis() - withMetricsStartTime;
-        System.out.println("Total time with metrics (no callees) =" + withMetricsTotalTime + "ms");
+        System.out.println("Total time with metrics (no callers) =" + withMetricsTotalTime + "ms");
         assertEquals("Metrics count is not correct", workerCount, metricsService.getMetrics().size());
         System.out.println("Free memory=" + humanReadableByteCount(Runtime.getRuntime().freeMemory(), false));
 
-        System.out.println("Testing with metrics activated (all callees activated)...");
+        System.out.println("Testing with metrics activated (all callers activated)...");
         todo.clear();
         metricsService.setActivated(true);
-        metricsService.setCalleeActivated("*", true);
-        assertNotEquals("Callees should not be completely empty", metricsService.getCalleesStatus().size(), 0);
-        long withMetricsAndCalleesStartTime = System.currentTimeMillis();
+        metricsService.setCallerActivated("*", true);
+        assertNotEquals("Callers should not be completely empty", metricsService.getCallersStatus().size(), 0);
+        long withMetricsAndCallersStartTime = System.currentTimeMillis();
         for (int i = 0; i < workerCount; i++) {
             todo.add(new Worker(metricsService, "worker-" + i, 1000+ random.nextInt(1000)));
         }
         answers = executorService.invokeAll(todo);
-        long withMetricsAndCalleesTotalTime = System.currentTimeMillis() - withMetricsAndCalleesStartTime;
-        System.out.println("Total time with metrics (with callees)=" + withMetricsAndCalleesTotalTime + "ms");
+        long withMetricsAndCallersTotalTime = System.currentTimeMillis() - withMetricsAndCallersStartTime;
+        System.out.println("Total time with metrics (with callers)=" + withMetricsAndCallersTotalTime + "ms");
         assertEquals("Metrics count is not correct", workerCount, metricsService.getMetrics().size());
         System.out.println("Free memory=" + humanReadableByteCount(Runtime.getRuntime().freeMemory(), false));
     }