/**
* 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 = prot_stack.findProtocol(prot_name);
if (prot == null) return; // less drastic than throwing an exception...
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];
}
Method method = MethodCall.findMethod(prot.getClass(), method_name, args);
if (method == null) {
log.warn(
Util.getMessage("MethodNotFound"),
local_addr,
prot.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] = MethodCall.convert(args[i], types[i]);
}
Object retval = call.invoke(prot, converted_args);
if (retval != null) map.put(prot_name + "." + method_name, retval.toString());
}
/**
* Calls a method remotely over the channel. Does nothing if {@link #isDroppedOut()} flag is set.
*
* @param id The ID of the method.
* @param messageNumber The message number.
* @param args The arguments.
*/
protected void callRemoteMethod(final short id, final long messageNumber, final Object... args) {
if (!cluster.channel.isConnected()) {
return;
}
MethodCall call = createMethodCall(id, messageNumber, args);
try {
dispatcher.callRemoteMethods(null, call, ASYNC_REQUEST_OPTIONS);
LOGGER.info(
"Method called: "
+ methods.findMethod(id).getName()
+ " "
+ Arrays.toString(call.getArgs()));
} catch (Exception e) {
throw new RuntimeException(
"Cannot call "
+ methods.findMethod(id)
+ " with parameters "
+ Arrays.toString(call.getArgs()),
e);
}
}
public Buffer objectToBuffer(Object obj) throws Exception {
MethodCall call = (MethodCall) obj;
ByteBuffer buf;
switch (call.getId()) {
case START:
case GET_CONFIG:
buf = ByteBuffer.allocate(Global.BYTE_SIZE);
buf.put((byte) call.getId());
return new Buffer(buf.array());
case SET_OOB:
case SET_SYNC:
return new Buffer(booleanBuffer(call.getId(), (Boolean) call.getArgs()[0]));
case SET_NUM_MSGS:
case SET_NUM_THREADS:
case SET_MSG_SIZE:
case SET_ANYCAST_COUNT:
return new Buffer(intBuffer(call.getId(), (Integer) call.getArgs()[0]));
case GET:
return new Buffer(longBuffer(call.getId(), (Long) call.getArgs()[0]));
case PUT:
Long long_arg = (Long) call.getArgs()[0];
byte[] arg2 = (byte[]) call.getArgs()[1];
buf =
ByteBuffer.allocate(
Global.BYTE_SIZE + Global.INT_SIZE + Global.LONG_SIZE + arg2.length);
buf.put((byte) call.getId())
.putLong(long_arg)
.putInt(arg2.length)
.put(arg2, 0, arg2.length);
return new Buffer(buf.array());
case SET_READ_PERCENTAGE:
Double double_arg = (Double) call.getArgs()[0];
buf = ByteBuffer.allocate(Global.BYTE_SIZE + Global.DOUBLE_SIZE);
buf.put((byte) call.getId()).putDouble(double_arg);
return new Buffer(buf.array());
default:
throw new IllegalStateException("method " + call.getMethod() + " not known");
}
}
protected void handleJmx(Map<String, String> map, String input) {
Map<String, Object> tmp_stats;
int index = input.indexOf("=");
if (index > -1) {
List<String> list = null;
String protocol_name = input.substring(index + 1);
index = protocol_name.indexOf(".");
if (index > -1) {
String rest = protocol_name;
protocol_name = protocol_name.substring(0, index);
String attrs = rest.substring(index + 1); // e.g. "num_sent,msgs,num_received_msgs"
list = Util.parseStringList(attrs, ",");
// check if there are any attribute-sets in the list
for (Iterator<String> it = list.iterator(); it.hasNext(); ) {
String tmp = it.next();
index = tmp.indexOf("=");
if (index != -1) {
String attrname = tmp.substring(0, index);
String attrvalue = tmp.substring(index + 1);
Protocol prot = prot_stack.findProtocol(protocol_name);
Field field = prot != null ? Util.getField(prot.getClass(), attrname) : null;
if (field != null) {
Object value = MethodCall.convert(attrvalue, field.getType());
if (value != null) prot.setValue(attrname, value);
} else {
// try to find a setter for X, e.g. x(type-of-x) or setX(type-of-x)
ResourceDMBean.Accessor setter =
ResourceDMBean.findSetter(
prot, attrname); // Util.getSetter(prot.getClass(), attrname);
if (setter != null) {
try {
Class<?> type =
setter instanceof ResourceDMBean.FieldAccessor
? ((ResourceDMBean.FieldAccessor) setter).getField().getType()
: setter instanceof ResourceDMBean.MethodAccessor
? ((ResourceDMBean.MethodAccessor) setter)
.getMethod()
.getParameterTypes()[0]
.getClass()
: null;
Object converted_value = MethodCall.convert(attrvalue, type);
setter.invoke(converted_value);
} catch (Exception e) {
log.error("unable to invoke %s() on %s: %s", setter, protocol_name, e);
}
} else log.warn(Util.getMessage("FieldNotFound"), attrname, protocol_name);
}
it.remove();
}
}
}
tmp_stats = dumpStats(protocol_name, list);
if (tmp_stats != null) {
for (Map.Entry<String, Object> entry : tmp_stats.entrySet()) {
Map<String, Object> tmp_map = (Map<String, Object>) entry.getValue();
String key = entry.getKey();
map.put(key, tmp_map != null ? tmp_map.toString() : null);
}
}
} else {
tmp_stats = dumpStats();
if (tmp_stats != null) {
for (Map.Entry<String, Object> entry : tmp_stats.entrySet()) {
Map<String, Object> tmp_map = (Map<String, Object>) entry.getValue();
String key = entry.getKey();
map.put(key, tmp_map != null ? tmp_map.toString() : null);
}
}
}
}
