Adding basic JMX support

src/main/java/com/couchbase/spring/monitor/AbstractMonitor.java

@@ -0,0 +1,42 @@
+package com.couchbase.spring.monitor;
+
+import com.couchbase.client.CouchbaseClient;
+
+import java.net.SocketAddress;
+import java.util.Map;
+
+/**
+ * Base class to encapsulate common configuration settings.
+ */
+public abstract class AbstractMonitor {
+
+  private CouchbaseClient client;
+
+  protected AbstractMonitor(final CouchbaseClient client) {
+    this.client = client;
+  }
+
+  public CouchbaseClient getClient() {
+    return client;
+  }
+
+  /**
+   * Fetches stats for all nodes.
+   *
+   * @return stats for each node
+   */
+  protected Map<SocketAddress,Map<String,String>> getStats() {
+    return client.getStats();
+  }
+
+  /**
+   * Returns stats for an individual node.
+   *
+   * @param node
+   * @return
+   */
+  protected Map<String, String> getStats(SocketAddress node) {
+    return getStats().get(node);
+  }
+
+}

src/main/java/com/couchbase/spring/monitor/ClusterInfo.java

@@ -0,0 +1,33 @@
+package com.couchbase.spring.monitor;
+
+import com.couchbase.client.CouchbaseClient;
+import org.springframework.jmx.export.annotation.ManagedOperation;
+import org.springframework.jmx.export.annotation.ManagedResource;
+
+import java.net.SocketAddress;
+
+/**
+ * Exposes basic cluster information.
+ */
+@ManagedResource(description =  "Cluster Information")
+public class ClusterInfo extends AbstractMonitor {
+
+  public ClusterInfo(final CouchbaseClient client) {
+    super(client);
+  }
+
+  @ManagedOperation(description = "Cluster Hostnames")
+  public String getHostNames() {
+    StringBuilder result = new StringBuilder();
+    for (SocketAddress node : getStats().keySet()) {
+      result.append(node.toString()).append(",");
+    }
+    return result.toString();
+  }
+
+  @ManagedOperation(description = "Number of Nodes")
+  public int getNumberOfNodes() {
+    return getStats().keySet().size();
+  }
+
+}