Add gradle build support for benchmarks and examples. (#163)

8 files changed, 38 insertions, 18 deletions

diff --git a/examples/build.gradle b/examples/build.gradle
new file mode 100644
index 00000000..8f1cec7a
--- /dev/null
+++ b/examples/build.gradle
@@ -0,0 +1,14 @@
+description = 'Instrumentation: Examples'
+
+tasks.withType(JavaCompile) {
+    sourceCompatibility = '1.8'
+    targetCompatibility = '1.8'
+}
+
+dependencies {
+    compile project(':instrumentation-core'),
+            project(':instrumentation-core-impl'),
+            libraries.grpc_context
+}
+
+// TODO(bdrutu): Add application plugin and create jars for each example.
\ No newline at end of file
diff --git a/examples/src/main/java/com/google/instrumentation/stats/StatsRunner.java b/examples/src/main/java/com/google/instrumentation/stats/StatsRunner.java
index 2eb28133..0e1e0c2f 100644
--- a/examples/src/main/java/com/google/instrumentation/stats/StatsRunner.java
+++ b/examples/src/main/java/com/google/instrumentation/stats/StatsRunner.java
@@ -18,9 +18,7 @@ import com.google.instrumentation.stats.MeasurementDescriptor.MeasurementUnit;
 import io.grpc.Context;
 import java.util.Arrays;
 
-/**
- * Simple program that uses Stats contexts.
- */
+/** Simple program that uses Stats contexts. */
 public class StatsRunner {
   private static final TagKey K1 = TagKey.create("k1");
   private static final TagKey K2 = TagKey.create("k2");
@@ -39,6 +37,7 @@ public class StatsRunner {
   private static final MeasurementDescriptor M2 =
       MeasurementDescriptor.create("m2", "2nd test metric", simpleMeasurementUnit);
 
+  /** Main method. */
   public static void main(String[] args) {
     System.out.println("Hello Stats World");
     System.out.println("Default Tags: " + DEFAULT);
@@ -46,24 +45,25 @@ public class StatsRunner {
     Context context1 = withCurrent(DEFAULT.with(K1, V1, K2, V2));
     Context original = context1.attach();
     try {
-        System.out.println("  Current Tags: " + getCurrentStatsContext());
-        System.out.println("  Current == Default + tags1: "
-            + getCurrentStatsContext().equals(getStatsContext(context1)));
-        Context context2 = withCurrent(getCurrentStatsContext().with(K3, V3, K4, V4));
-        context2.attach();
-        try {
-          System.out.println("    Current Tags: " + getCurrentStatsContext());
-          System.out.println("    Current == Default + tags1 + tags2: "
-              + getCurrentStatsContext().equals(getStatsContext(context2)));
-          getCurrentStatsContext().record(MeasurementMap.of(M1, 0.2, M2, 0.4));
-        } finally {
-          context2.detach(context1);
-        }
+      System.out.println("  Current Tags: " + getCurrentStatsContext());
+      System.out.println(
+          "  Current == Default + tags1: "
+              + getCurrentStatsContext().equals(getStatsContext(context1)));
+      Context context2 = withCurrent(getCurrentStatsContext().with(K3, V3, K4, V4));
+      context2.attach();
+      try {
+        System.out.println("    Current Tags: " + getCurrentStatsContext());
+        System.out.println(
+            "    Current == Default + tags1 + tags2: "
+                + getCurrentStatsContext().equals(getStatsContext(context2)));
+        getCurrentStatsContext().record(MeasurementMap.of(M1, 0.2, M2, 0.4));
+      } finally {
+        context2.detach(context1);
+      }
     } finally {
       context1.detach(original);
     }
-    System.out.println("Current == Default: "
-        + getCurrentStatsContext().equals(DEFAULT));
+    System.out.println("Current == Default: " + getCurrentStatsContext().equals(DEFAULT));
   }
 
   private static final StatsContext DEFAULT = Stats.getStatsContextFactory().getDefault();
diff --git a/examples/src/main/java/com/google/instrumentation/trace/BasicContextTracing.java b/examples/src/main/java/com/google/instrumentation/trace/BasicContextTracing.java
index b3411b62..1b8b9951 100644
--- a/examples/src/main/java/com/google/instrumentation/trace/BasicContextTracing.java
+++ b/examples/src/main/java/com/google/instrumentation/trace/BasicContextTracing.java
@@ -28,6 +28,7 @@ public final class BasicContextTracing {
     tracer.getCurrentSpan().addAnnotation("This is a doWork() annotation.");
   }
 
+  /** Main method. */
   public static void main(String[] args) {
     Span span = tracer.spanBuilder("MyRootSpan").becomeRoot().startSpan();
     try (NonThrowingCloseable ws = tracer.withSpan(span)) {
diff --git a/examples/src/main/java/com/google/instrumentation/trace/BasicScopedTracing.java b/examples/src/main/java/com/google/instrumentation/trace/BasicScopedTracing.java
index 8987f262..17879825 100644
--- a/examples/src/main/java/com/google/instrumentation/trace/BasicScopedTracing.java
+++ b/examples/src/main/java/com/google/instrumentation/trace/BasicScopedTracing.java
@@ -28,6 +28,7 @@ public final class BasicScopedTracing {
     tracer.getCurrentSpan().addAnnotation("This is a doWork() annotation.");
   }
 
+  /** Main method. */
   public static void main(String[] args) {
     try (NonThrowingCloseable ss =
         tracer.spanBuilder("MyRootSpan").becomeRoot().startScopedSpan()) {
diff --git a/examples/src/main/java/com/google/instrumentation/trace/BasicTracing.java b/examples/src/main/java/com/google/instrumentation/trace/BasicTracing.java
index bdb57680..daaf911d 100644
--- a/examples/src/main/java/com/google/instrumentation/trace/BasicTracing.java
+++ b/examples/src/main/java/com/google/instrumentation/trace/BasicTracing.java
@@ -24,6 +24,7 @@ public final class BasicTracing {
     span.end();
   }
 
+  /** Main method. */
   public static void main(String[] args) {
     doWork();
   }
diff --git a/examples/src/main/java/com/google/instrumentation/trace/MultiSpansContextTracing.java b/examples/src/main/java/com/google/instrumentation/trace/MultiSpansContextTracing.java
index b5721d38..8b849de3 100644
--- a/examples/src/main/java/com/google/instrumentation/trace/MultiSpansContextTracing.java
+++ b/examples/src/main/java/com/google/instrumentation/trace/MultiSpansContextTracing.java
@@ -42,6 +42,7 @@ public final class MultiSpansContextTracing {
     tracer.getCurrentSpan().addAnnotation("Annotation to the root Span after child is ended.");
   }
 
+  /** Main method. */
   public static void main(String[] args) {
     Span span = tracer.spanBuilder("MyRootSpan").becomeRoot().startSpan();
     try (NonThrowingCloseable ws = tracer.withSpan(span)) {
diff --git a/examples/src/main/java/com/google/instrumentation/trace/MultiSpansScopedTracing.java b/examples/src/main/java/com/google/instrumentation/trace/MultiSpansScopedTracing.java
index 827fbb6e..457f4a16 100644
--- a/examples/src/main/java/com/google/instrumentation/trace/MultiSpansScopedTracing.java
+++ b/examples/src/main/java/com/google/instrumentation/trace/MultiSpansScopedTracing.java
@@ -40,6 +40,7 @@ public final class MultiSpansScopedTracing {
     tracer.getCurrentSpan().addAnnotation("Annotation to the root Span after child is ended.");
   }
 
+  /** Main method. */
   public static void main(String[] args) {
     try (NonThrowingCloseable ss =
         tracer.spanBuilder("MyRootSpan").becomeRoot().startScopedSpan()) {
diff --git a/examples/src/main/java/com/google/instrumentation/trace/MultiSpansTracing.java b/examples/src/main/java/com/google/instrumentation/trace/MultiSpansTracing.java
index 56d6bfe5..fcc74125 100644
--- a/examples/src/main/java/com/google/instrumentation/trace/MultiSpansTracing.java
+++ b/examples/src/main/java/com/google/instrumentation/trace/MultiSpansTracing.java
@@ -28,6 +28,7 @@ public final class MultiSpansTracing {
     rootSpan.end();
   }
 
+  /** Main method. */
   public static void main(String[] args) {
     doWork();
   }