Client library changes for codahale/signalfx integration

Summary:
A few extra libraries and helper function to join source/metric
pairs

Test Plan: Used internally

Reviewed By: kris

.gitignore

@@ -31,3 +31,4 @@ cleanmvn.dot
 *.iml
 .idea
 /analytics/server/log/
+*.versionsBackup

deploy_release.sh

@@ -0,0 +1,2 @@
+#!/bin/bash
+mvn clean deploy -P release

deploy_snapshot.sh

@@ -0,0 +1,2 @@
+#!/bin/bash
+mvn clean deploy

pom.xml

@@ -3,10 +3,16 @@
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
   <modelVersion>4.0.0</modelVersion>
 
+  <parent>
+    <groupId>org.sonatype.oss</groupId>
+    <artifactId>oss-parent</artifactId>
+    <version>7</version>
+  </parent>
+
   <groupId>com.signalfuse.public</groupId>
   <artifactId>clients-parent</artifactId>
   <name>SignalFuse parent</name>
-  <version>1-SNAPSHOT</version>
+  <version>0.0.6-SNAPSHOT</version>
   <packaging>pom</packaging>
 
   <description>
@@ -52,22 +58,22 @@
       <dependency>
         <groupId>com.signalfuse.public</groupId>
         <artifactId>signalfuse-protoc</artifactId>
-        <version>1.0-SNAPSHOT</version>
+        <version>0.0.6-SNAPSHOT</version>
       </dependency>
       <dependency>
         <groupId>com.signalfuse.public</groupId>
         <artifactId>signalfuse-codahale</artifactId>
-        <version>1.0-SNAPSHOT</version>
+        <version>0.0.6-SNAPSHOT</version>
       </dependency>
       <dependency>
         <groupId>com.signalfuse.public</groupId>
         <artifactId>signalfuse-commons-protoc-java</artifactId>
-        <version>1.0-SNAPSHOT</version>
+        <version>0.0.6-SNAPSHOT</version>
       </dependency>
       <dependency>
         <groupId>com.signalfuse.public</groupId>
         <artifactId>signalfuse-java</artifactId>
-        <version>1.0-SNAPSHOT</version>
+        <version>0.0.6-SNAPSHOT</version>
       </dependency>
 
       <!-- ********************** -->
@@ -148,14 +154,38 @@
   </dependencyManagement>
 
   <build>
+    <pluginManagement>
+      <plugins>
+        <plugin>
+          <!--
+            Bugs in older versions prevent altReleaseDeploymentRepository
+            and altSnapshotDeploymentRepository from working correctly
+            https://maven.apache.org/plugins/maven-deploy-plugin/deploy-mojo.html
+           -->
+          <artifactId>maven-deploy-plugin</artifactId>
+          <version>2.8.1</version>
+        </plugin>
+      </plugins>
+    </pluginManagement>
     <plugins>
+      <plugin>
+        <groupId>org.sonatype.plugins</groupId>
+        <artifactId>nexus-staging-maven-plugin</artifactId>
+        <version>1.6.2</version>
+        <extensions>true</extensions>
+        <configuration>
+          <serverId>ossrh</serverId>
+          <nexusUrl>https://oss.sonatype.org/</nexusUrl>
+          <autoReleaseAfterClose>true</autoReleaseAfterClose>
+        </configuration>
+      </plugin>
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-compiler-plugin</artifactId>
         <version>3.1</version>
         <configuration>
-          <source>1.5</source>
-          <target>1.5</target>
+          <source>1.6</source>
+          <target>1.6</target>
         </configuration>
       </plugin>
       <plugin>
@@ -184,6 +214,20 @@
           </execution>
         </executions>
       </plugin>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-gpg-plugin</artifactId>
+        <version>1.5</version>
+        <executions>
+          <execution>
+            <id>sign-artifacts</id>
+            <phase>verify</phase>
+            <goals>
+              <goal>sign</goal>
+            </goals>
+          </execution>
+        </executions>
+      </plugin>
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-dependency-plugin</artifactId>

signalfuse-codahale/pom.xml

@@ -7,12 +7,12 @@
   <parent>
     <groupId>com.signalfuse.public</groupId>
     <artifactId>clients-parent</artifactId>
-    <version>1-SNAPSHOT</version>
+    <version>0.0.6-SNAPSHOT</version>
   </parent>
 
   <artifactId>signalfuse-codahale</artifactId>
   <name>Codahale to SignalFuse</name>
-  <version>1.0-SNAPSHOT</version>
+  <version>0.0.6-SNAPSHOT</version>
   <packaging>jar</packaging>
   <description>
     Codahale yammer metrics plugin for signalfuse
@@ -53,6 +53,10 @@
       <groupId>com.signalfuse.public</groupId>
       <artifactId>signalfuse-protoc</artifactId>
     </dependency>
+    <dependency>
+      <groupId>com.google.guava</groupId>
+      <artifactId>guava</artifactId>
+    </dependency>
     <dependency>
       <groupId>org.slf4j</groupId>
       <artifactId>slf4j-simple</artifactId>

signalfuse-codahale/src/main/java/com/signalfuse/codahale/metrics/CallbackCumulativeCounter.java

@@ -0,0 +1,42 @@
+package com.signalfuse.codahale.metrics;
+
+import com.codahale.metrics.Counter;
+import com.codahale.metrics.Gauge;
+
+/**
+ * <p>
+ * Sometimes you want the rate of something like you would with a {@link Counter}, but you can't get
+ * individual events and instead must set a total "count" of events at some periodic rate.  This
+ * class abstracts that out into a {@link Counter} that codahale can understand.
+ * <p/>
+ */
+public class CallbackCumulativeCounter extends Counter {
+    private final Callback callback;
+
+    public CallbackCumulativeCounter(Callback callback) {
+        this.callback = callback;
+    }
+
+    @Override public void inc() {
+        throw new UnsupportedOperationException("inc() on CallbackCumulativeCounter");
+    }
+
+    @Override public void inc(long n) {
+        throw new UnsupportedOperationException("inc() on CallbackCumulativeCounter");
+    }
+
+    @Override public void dec() {
+        throw new UnsupportedOperationException("dec() on CallbackCumulativeCounter");
+    }
+
+    @Override public void dec(long n) {
+        throw new UnsupportedOperationException("dec() on CallbackCumulativeCounter");
+    }
+
+    @Override public long getCount() {
+        return callback.getValue();
+    }
+
+    public interface Callback extends Gauge<Long> {
+    }
+}

signalfuse-codahale/src/main/java/com/signalfuse/codahale/metrics/SettableDoubleGauge.java

@@ -0,0 +1,18 @@
+package com.signalfuse.codahale.metrics;
+
+import com.codahale.metrics.Gauge;
+import com.codahale.metrics.Metric;
+import com.google.common.util.concurrent.AtomicDouble;
+
+/**
+ * Same as {@link SettableLongGauge} but for a double
+ */
+public class SettableDoubleGauge implements Metric, Gauge<Double> {
+    private final AtomicDouble value = new AtomicDouble();
+    public void setValue(double value) {
+        this.value.set(value);
+    }
+    public Double getValue() {
+        return value.get();
+    }
+}

signalfuse-codahale/src/main/java/com/signalfuse/codahale/metrics/SettableLongGauge.java

@@ -0,0 +1,19 @@
+package com.signalfuse.codahale.metrics;
+
+import java.util.concurrent.atomic.AtomicLong;
+import com.codahale.metrics.Gauge;
+import com.codahale.metrics.Metric;
+
+/**
+ * Works like a Gauge, but rather than getting its value from a callback, the value
+ * is set when needed.  This can be somewhat convienent, but direct use of a Gauge is likely better
+ */
+public class SettableLongGauge implements Metric, Gauge<Long> {
+    private final AtomicLong value = new AtomicLong();
+    public void setValue(long value) {
+        this.value.set(value);
+    }
+    public Long getValue() {
+        return value.get();
+    }
+}