feat: add ocagent exporter to shaded jars to allow customers more fle… (

#3683)

…xibility for clientside metrics

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- [ ] Make sure to open an issue as a [bug/issue](https://github.com/googleapis/java-bigtable-hbase/issues/new/choose) before writing your code!  That way we can discuss the change, evaluate designs, and agree on the general idea
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- [ ] Appropriate docs were updated (if necessary)

Fixes #<issue_number_goes_here> ☕️

If you write sample code, please follow the [samples format](
https://github.com/GoogleCloudPlatform/java-docs-samples/blob/main/SAMPLE_FORMAT.md).

bigtable-hbase-1.x-parent/bigtable-hbase-1.x-shaded/pom.xml

@@ -99,6 +99,30 @@ limitations under the License.
       <groupId>io.opencensus</groupId>
       <artifactId>opencensus-exporter-trace-stackdriver</artifactId>
     </dependency>
+    <dependency>
+      <groupId>io.opencensus</groupId>
+      <artifactId>opencensus-exporter-metrics-ocagent</artifactId>
+      <version>${opencensus.version}</version>
+      <exclusions>
+        <!-- we already use netty-shaded -->
+        <exclusion>
+          <groupId>io.grpc</groupId>
+          <artifactId>grpc-netty</artifactId>
+        </exclusion>
+      </exclusions>
+    </dependency>
+    <dependency>
+      <groupId>io.opencensus</groupId>
+      <artifactId>opencensus-exporter-trace-ocagent</artifactId>
+      <version>${opencensus.version}</version>
+      <exclusions>
+        <!-- we already use netty-shaded -->
+        <exclusion>
+          <groupId>io.grpc</groupId>
+          <artifactId>grpc-netty</artifactId>
+        </exclusion>
+      </exclusions>
+    </dependency>
     <!-- grpc-census needed alongside opencensus-exporter-stats-stackdriver for GRPC stats exports to work -->
     <dependency>
       <groupId>io.grpc</groupId>

bigtable-hbase-2.x-parent/bigtable-hbase-2.x-shaded/pom.xml

@@ -93,6 +93,31 @@ limitations under the License.
       <groupId>io.opencensus</groupId>
       <artifactId>opencensus-exporter-trace-stackdriver</artifactId>
     </dependency>
+    <dependency>
+      <groupId>io.opencensus</groupId>
+      <artifactId>opencensus-exporter-metrics-ocagent</artifactId>
+      <version>${opencensus.version}</version>
+      <exclusions>
+        <!-- we already use netty-shaded -->
+        <exclusion>
+          <groupId>io.grpc</groupId>
+          <artifactId>grpc-netty</artifactId>
+        </exclusion>
+      </exclusions>
+    </dependency>
+    <dependency>
+      <groupId>io.opencensus</groupId>
+      <artifactId>opencensus-exporter-trace-ocagent</artifactId>
+      <version>${opencensus.version}</version>
+      <exclusions>
+        <!-- we already use netty-shaded -->
+        <exclusion>
+          <groupId>io.grpc</groupId>
+          <artifactId>grpc-netty</artifactId>
+        </exclusion>
+      </exclusions>
+    </dependency>
+
     <!-- grpc-census needed alongside opencensus-exporter-stats-stackdriver for GRPC stats exports to work -->
     <dependency>
       <groupId>io.grpc</groupId>

pom.xml

@@ -83,6 +83,7 @@ limitations under the License.
     <guava.version>31.1-jre</guava.version>
     <gcs-guava.version>29.0-jre</gcs-guava.version>
     <beam-slf4j.version>1.7.30</beam-slf4j.version>
+    <opencensus.version>0.28.0</opencensus.version>
 
     <!-- Benchmarks related dependencies -->
     <jmh.version>1.35</jmh.version>
@@ -318,7 +319,7 @@ limitations under the License.
                     <!-- gax-grpc transitvely brings in opencensus-proto, which the latest version is 0.2.0-->
                     <!-- Only allow 0.2.0 for opencensus-proto and then the latest version (currently 0.28.0) for all other modules-->
                     <!-- this will need to be updated whenever the opencensus version gets updated -->
-                    <dependency>io.opencensus:*:[0.28.0]</dependency>
+                    <dependency>io.opencensus:*:[${opencensus.version}]</dependency>
                     <dependency>io.opencensus:opencensus-proto:[0.2.0]</dependency>
                   </includes>
                 </bannedDependencies>