convert Route to shell commmand and format the output

bindings/java/src/net/hyperic/sigar/cmd/Route.java

@@ -1,10 +1,36 @@
 package net.hyperic.sigar.cmd;
 
-import net.hyperic.sigar.Sigar;
+import java.util.ArrayList;
+
 import net.hyperic.sigar.NetFlags;
 import net.hyperic.sigar.NetRoute;
+import net.hyperic.sigar.Sigar;
+import net.hyperic.sigar.SigarException;
 
-public class Route {
+public class Route extends SigarCommandBase {
+    private static final String OUTPUT_FORMAT =
+        "%-15s %-15s %-15s %-5s %-6s %-3s %-s";
+
+    //like df -h -a
+    private static final String[] HEADER = new String[] {
+        "Destination",
+        "Gateway",
+        "Genmask",
+        "Flags",
+        "Metric",
+        "Ref",
+        "Iface"
+    };
+
+    public Route(Shell shell) {
+        super(shell);
+        setOutputFormat(OUTPUT_FORMAT);
+    }
+
+    public Route() {
+        super();
+        setOutputFormat(OUTPUT_FORMAT);
+    }
 
     private static String flags(long flags) {
         StringBuffer sb = new StringBuffer();
@@ -17,26 +43,33 @@ public class Route {
         return sb.toString();
     }
 
+    public String getUsageShort() {
+        return "Kernel IP routing table";
+    }
+
     //netstat -r
-    public static void main(String[] args) throws Exception {
-        Sigar sigar = new Sigar();
+    public void output(String[] args) throws SigarException {
+        NetRoute[] routes = this.sigar.getNetRouteList();
 
-        NetRoute[] routes = sigar.getNetRouteList();
-
-        System.out.println("Destination\tGateway\tGenmask" +
-                           "\tFlags\tMSS\tWindow\tirtt\tIface");
+        printf(HEADER);
 
         for (int i=0; i<routes.length; i++) {
             NetRoute route = routes[i];
 
-            System.out.println(route.getDestination() + "\t" +
-                               route.getGateway() + "\t" +
-                               route.getMask() + "\t" +
-                               flags(route.getFlags()) + "\t" +
-                               route.getMtu() + "\t" +
-                               route.getWindow() + "\t" +
-                               route.getIrtt() + "\t" +
-                               route.getIfname());
+            ArrayList items = new ArrayList();
+            items.add(route.getDestination());
+            items.add(route.getGateway());
+            items.add(route.getMask());
+            items.add(flags(route.getFlags()));
+            items.add(String.valueOf(route.getMetric()));
+            items.add(String.valueOf(route.getRefcnt()));
+            items.add(route.getIfname());
+
+            printf(items);
         }
     }
+
+    public static void main(String[] args) throws Exception {
+        new Route().processCommand(args);
+    }
 }

bindings/java/src/net/hyperic/sigar/cmd/Shell.java

@@ -71,6 +71,7 @@ public class Shell extends ShellBase {
         registerCommandHandler("kill", new Kill(this));
         registerCommandHandler("netstat", new Netstat(this));
         registerCommandHandler("netinfo", new NetInfo(this));
+        registerCommandHandler("route", new Route(this));
         registerCommandHandler("version", new Version(this));
         registerCommandHandler("mps", new MultiPs(this));
         registerCommandHandler("sysinfo", new SysInfo(this));