Examples with MethodCall org.jgroups.blocks.MethodCall used on opensource projects

Example 11 with MethodCall

use of org.jgroups.blocks.MethodCall in project JGroups by belaban.

the class JChannelProbeHandler method handleOperation.

/**
 * Invokes an operation and puts the return value into map
 * @param map
 * @param operation Protocol.OperationName[args], e.g. STABLE.foo[arg1 arg2 arg3]
 */
protected void handleOperation(Map<String, String> map, String operation) throws Exception {
    int index = operation.indexOf('.');
    if (index == -1)
        throw new IllegalArgumentException("operation " + operation + " is missing the protocol name");
    String prot_name = operation.substring(0, index);
    Protocol prot = ch.getProtocolStack().findProtocol(prot_name);
    if (prot == null)
        // less drastic than throwing an exception...
        return;
    int args_index = operation.indexOf('[');
    String method_name;
    if (args_index != -1)
        method_name = operation.substring(index + 1, args_index).trim();
    else
        method_name = operation.substring(index + 1).trim();
    String[] args = null;
    if (args_index != -1) {
        int end_index = operation.indexOf(']');
        if (end_index == -1)
            throw new IllegalArgumentException("] not found");
        List<String> str_args = Util.parseCommaDelimitedStrings(operation.substring(args_index + 1, end_index));
        Object[] strings = str_args.toArray();
        args = new String[strings.length];
        for (int i = 0; i < strings.length; i++) args[i] = (String) strings[i];
    }
    Object target = prot;
    Method method = MethodCall.findMethod(target.getClass(), method_name, args);
    if (method == null) {
        if (prot instanceof AdditionalJmxObjects) {
            for (Object obj : ((AdditionalJmxObjects) prot).getJmxObjects()) {
                method = MethodCall.findMethod(obj.getClass(), method_name, args);
                if (method != null) {
                    target = obj;
                    break;
                }
            }
        }
        if (method == null) {
            log.warn(Util.getMessage("MethodNotFound"), ch.getAddress(), target.getClass().getSimpleName(), method_name);
            return;
        }
    }
    MethodCall call = new MethodCall(method);
    Object[] converted_args = null;
    if (args != null) {
        converted_args = new Object[args.length];
        Class<?>[] types = method.getParameterTypes();
        for (int i = 0; i < args.length; i++) converted_args[i] = Util.convert(args[i], types[i]);
    }
    Object retval = call.invoke(target, converted_args);
    if (retval != null)
        map.put(prot_name + "." + method_name, retval.toString());
}

Example 12 with MethodCall

use of org.jgroups.blocks.MethodCall in project JGroups by belaban.

the class RelayDemoRpc method start.

public void start(String props, String name) throws Exception {
    ch = new JChannel(props);
    if (name != null)
        ch.setName(name);
    disp = new RpcDispatcher(ch, this).setMembershipListener(this);
    ch.connect("RelayDemo");
    local_addr = ch.getAddress().toString();
    MethodCall call = new MethodCall(getClass().getMethod("handleMessage", String.class, String.class));
    for (; ; ) {
        String line = Util.readStringFromStdin(": ");
        if (line.startsWith("help")) {
            System.out.println("unicast <text>  // unicasts to all members of local view\n" + "site <site>+    // unicasts to all listed site masters, e.g. \"site sfo lon\"\n" + "mcast <site>+   // anycasts to all local members, plus listed site masters \n" + "<text>          // multicast, RELAY2 will relay to all members of sites");
            continue;
        }
        call.args(line, local_addr);
        // unicast to every member of the local cluster
        if (line.equalsIgnoreCase("unicast")) {
            for (Address dest : view.getMembers()) {
                System.out.println("invoking method in " + dest + ": ");
                try {
                    Object rsp = disp.callRemoteMethod(dest, call, new RequestOptions(ResponseMode.GET_ALL, RPC_TIMEOUT));
                    System.out.println("rsp from " + dest + ": " + rsp);
                } catch (Throwable throwable) {
                    throwable.printStackTrace();
                }
            }
        } else // unicast to 1 SiteMaster
        if (line.startsWith("site")) {
            Collection<String> site_masters = parseSiteMasters(line.substring("site".length()));
            for (String site_master : site_masters) {
                try {
                    SiteMaster dest = new SiteMaster(site_master);
                    System.out.println("invoking method in " + dest + ": ");
                    Object rsp = disp.callRemoteMethod(dest, call, new RequestOptions(ResponseMode.GET_ALL, RPC_TIMEOUT));
                    System.out.println("rsp from " + dest + ": " + rsp);
                } catch (Throwable t) {
                    t.printStackTrace();
                }
            }
        } else // mcast to all local members and N SiteMasters
        if (line.startsWith("mcast")) {
            Collection<String> site_masters = parseSiteMasters(line.substring("mcast".length()));
            Collection<Address> dests = new ArrayList<>(site_masters.size());
            for (String site_master : site_masters) {
                try {
                    dests.add(new SiteMaster(site_master));
                } catch (Throwable t) {
                    System.err.println("failed adding SiteMaster for " + site_master + ": " + t);
                }
            }
            dests.addAll(view.getMembers());
            System.out.println("invoking method in " + dests + ": ");
            RspList<Object> rsps = disp.callRemoteMethods(dests, call, new RequestOptions(ResponseMode.GET_ALL, RPC_TIMEOUT).anycasting(true));
            for (Map.Entry<Address, Rsp<Object>> entry : rsps.entrySet()) {
                Address sender = entry.getKey();
                Rsp<Object> rsp = entry.getValue();
                if (rsp.wasUnreachable())
                    System.out.println("<< unreachable: " + sender);
                else
                    System.out.println("<< " + rsp.getValue() + " from " + sender);
            }
        } else {
            // mcasting the call to all local cluster members
            RspList<Object> rsps = disp.callRemoteMethods(null, call, new RequestOptions(ResponseMode.GET_ALL, RPC_TIMEOUT).anycasting(false));
            rsps.entrySet().stream().forEach(entry -> {
                Rsp<Object> val = entry.getValue();
                System.out.println("<< " + val.getValue() + " from " + entry.getKey());
            });
        }
    }
}

Example 13 with MethodCall

use of org.jgroups.blocks.MethodCall in project JGroups by belaban.

the class GraphPanel method mouseReleased.

public void mouseReleased(MouseEvent e) {
    Point p = e.getPoint();
    if (pick == null)
        return;
    pick.x = p.x;
    pick.y = p.y;
    pick.fixed = pickfixed;
    try {
        MethodCall call = new MethodCall("moveNode", new Object[] { pick }, new Class[] { Node.class });
        wb.disp.callRemoteMethods(null, call, new RequestOptions(ResponseMode.GET_ALL, 0));
    } catch (Exception ex) {
        log.error(ex.toString());
    }
    pick = null;
}

Example 14 with MethodCall

use of org.jgroups.blocks.MethodCall in project JGroups by belaban.

the class RpcDispatcherSpeedTest method invokeRpcs.

protected void invokeRpcs() throws Exception {
    Average avg = new Average();
    long min = Long.MAX_VALUE, max = 0;
    RequestOptions opts = new RequestOptions(ResponseMode.GET_FIRST, 0).transientFlags(Message.TransientFlag.DONT_LOOPBACK);
    MethodCall call = new MethodCall((short) 0);
    int print = num / 10;
    if (oob)
        opts.flags(Message.Flag.OOB);
    if (dont_bundle)
        opts.flags(Message.Flag.DONT_BUNDLE);
    if (channel.getView().size() != 2) {
        System.err.printf("Cluster must have exactly 2 members: %s\n", channel.getView());
        return;
    }
    System.out.printf("\nInvoking %d blocking RPCs (oob: %b, dont_bundle: %b)\n", num, oob, dont_bundle);
    for (int i = 0; i < num; i++) {
        long start = System.nanoTime();
        RspList<Void> rsps = disp.callRemoteMethods(null, call, opts);
        long time_ns = System.nanoTime() - start;
        if (i > 0 && i % print == 0)
            System.out.print(".");
        boolean all_received = rsps.values().stream().allMatch(Rsp::wasReceived);
        if (!all_received)
            System.err.printf("didn't receive all responses: %s\n", rsps);
        avg.add(time_ns);
        min = Math.min(min, time_ns);
        max = Math.max(max, time_ns);
    }
    System.out.println("");
    System.out.printf("\nround-trip = min/avg/max: %.2f / %.2f / %.2f us\n\n", min / 1000.0, avg.getAverage() / 1000.0, max / 1000.0);
}

Example 15 with MethodCall

use of org.jgroups.blocks.MethodCall in project JGroups by belaban.

the class MethodCallTest method testMarshallingMETHOD.

public static void testMarshallingMETHOD() throws Exception {
    Method m = TargetClass.class.getMethod("foo", int.class, String.class);
    MethodCall mc = new MethodCall(m, 22, "Bela");
    MethodCall call2 = marshalAndUnmarshal(mc);
    System.out.println("call2 = " + call2);
    mc = new MethodCall(CALL, true, Boolean.FALSE, 322649, 3.24, (float) 54.345, new byte[] { 'b', 'e', 'l', 'a' }, new String[] { "Bela", "Michelle" });
    call2 = marshalAndUnmarshal(mc);
    System.out.println("call2 = " + call2);
}