docs: Separate sample codes from gRPC document

This patch separate sample codes from grpc-client.md
and adds references to samples in tools/grpc/.

Signed-off-by: Satoshi Fujimoto <satoshi.fujimoto7@gmail.com>

1 files changed, 45 insertions, 0 deletions

diff --git a/tools/grpc/java/src/gobgp/example/GobgpSampleClient.java b/tools/grpc/java/src/gobgp/example/GobgpSampleClient.java
new file mode 100644
index 00000000..eb991f88
--- /dev/null
+++ b/tools/grpc/java/src/gobgp/example/GobgpSampleClient.java
@@ -0,0 +1,45 @@
+package gobgp.example;
+
+import gobgpapi.Gobgp;
+import gobgpapi.GobgpApiGrpc;
+import io.grpc.ManagedChannel;
+import io.grpc.ManagedChannelBuilder;
+
+import java.util.Iterator;
+
+public class GobgpSampleClient {
+
+    private final GobgpApiGrpc.GobgpApiBlockingStub blockingStub;
+
+    public GobgpSampleClient(String host, int port) {
+        ManagedChannel channel = ManagedChannelBuilder.forAddress(host, port).usePlaintext(true).build();
+        this.blockingStub = GobgpApiGrpc.newBlockingStub(channel);
+    }
+
+    public void getNeighbors(){
+
+        Gobgp.Arguments request = Gobgp.Arguments.newBuilder().build();
+
+        for(Iterator<Gobgp.Peer> iterator = this.blockingStub.getNeighbors(request); iterator.hasNext(); ) {
+            Gobgp.Peer p = iterator.next();
+            Gobgp.PeerConf conf = p.getConf();
+            Gobgp.PeerState state = p.getInfo();
+            Gobgp.Timers timer = p.getTimers();
+
+            System.out.printf("BGP neighbor is %s, remote AS %d\n", conf.getNeighborAddress(), conf.getPeerAs());
+            System.out.printf("\tBGP version 4, remote router ID %s\n", conf.getId());
+            System.out.printf("\tBGP state = %s, up for %d\n", state.getBgpState(), timer.getState().getUptime());
+            System.out.printf("\tBGP OutQ = %d, Flops = %d\n", state.getOutQ(), state.getFlops());
+            System.out.printf("\tHold time is %d, keepalive interval is %d seconds\n",
+                    timer.getState().getHoldTime(), timer.getState().getKeepaliveInterval());
+            System.out.printf("\tConfigured hold time is %d\n", timer.getConfig().getHoldTime());
+
+        }
+    }
+
+    public static void main(String args[]){
+        new GobgpSampleClient(args[0], 8080).getNeighbors();
+    }
+
+}
+