use of com.alibaba.dubbo.rpc.RpcException in project dubbo by alibaba.
the class MockClusterInvokerTest method testMockInvokerFromOverride_Invoke_Fock_WithOutDefault.
/**
* Test if mock policy works fine: fail-mock
*/
@Test
public void testMockInvokerFromOverride_Invoke_Fock_WithOutDefault() {
URL url = URL.valueOf("remote://1.2.3.4/" + IHelloService.class.getName()).addParameter("getSomething.mock", "fail:return x").addParameter("getSomething2.mock", "force:return y").addParameter("invoke_return_error", "true");
Invoker<IHelloService> cluster = getClusterInvoker(url);
// Configured with mock
RpcInvocation invocation = new RpcInvocation();
invocation.setMethodName("getSomething");
Result ret = cluster.invoke(invocation);
Assert.assertEquals("x", ret.getValue());
// If no mock was configured, return null directly
invocation = new RpcInvocation();
invocation.setMethodName("getSomething2");
ret = cluster.invoke(invocation);
Assert.assertEquals("y", ret.getValue());
// If no mock was configured, return null directly
invocation = new RpcInvocation();
invocation.setMethodName("getSomething3");
try {
ret = cluster.invoke(invocation);
Assert.fail();
} catch (RpcException e) {
}
}
use of com.alibaba.dubbo.rpc.RpcException in project dubbo by alibaba.
the class BroadcastClusterInvoker method doInvoke.
@SuppressWarnings({ "unchecked", "rawtypes" })
public Result doInvoke(final Invocation invocation, List<Invoker<T>> invokers, LoadBalance loadbalance) throws RpcException {
checkInvokers(invokers, invocation);
RpcContext.getContext().setInvokers((List) invokers);
RpcException exception = null;
Result result = null;
for (Invoker<T> invoker : invokers) {
try {
result = invoker.invoke(invocation);
} catch (RpcException e) {
exception = e;
logger.warn(e.getMessage(), e);
} catch (Throwable e) {
exception = new RpcException(e.getMessage(), e);
logger.warn(e.getMessage(), e);
}
}
if (exception != null) {
throw exception;
}
return result;
}
use of com.alibaba.dubbo.rpc.RpcException in project dubbo by alibaba.
the class FailfastClusterInvoker method doInvoke.
public Result doInvoke(Invocation invocation, List<Invoker<T>> invokers, LoadBalance loadbalance) throws RpcException {
checkInvokers(invokers, invocation);
Invoker<T> invoker = select(loadbalance, invocation, invokers, null);
try {
return invoker.invoke(invocation);
} catch (Throwable e) {
if (e instanceof RpcException && ((RpcException) e).isBiz()) {
// biz exception.
throw (RpcException) e;
}
throw new RpcException(e instanceof RpcException ? ((RpcException) e).getCode() : 0, "Failfast invoke providers " + invoker.getUrl() + " " + loadbalance.getClass().getSimpleName() + " select from all providers " + invokers + " for service " + getInterface().getName() + " method " + invocation.getMethodName() + " on consumer " + NetUtils.getLocalHost() + " use dubbo version " + Version.getVersion() + ", but no luck to perform the invocation. Last error is: " + e.getMessage(), e.getCause() != null ? e.getCause() : e);
}
}
use of com.alibaba.dubbo.rpc.RpcException in project dubbo by alibaba.
the class FailoverClusterInvoker method doInvoke.
@SuppressWarnings({ "unchecked", "rawtypes" })
public Result doInvoke(Invocation invocation, final List<Invoker<T>> invokers, LoadBalance loadbalance) throws RpcException {
List<Invoker<T>> copyinvokers = invokers;
checkInvokers(copyinvokers, invocation);
int len = getUrl().getMethodParameter(invocation.getMethodName(), Constants.RETRIES_KEY, Constants.DEFAULT_RETRIES) + 1;
if (len <= 0) {
len = 1;
}
// retry loop.
// last exception.
RpcException le = null;
// invoked invokers.
List<Invoker<T>> invoked = new ArrayList<Invoker<T>>(copyinvokers.size());
Set<String> providers = new HashSet<String>(len);
for (int i = 0; i < len; i++) {
// NOTE: if `invokers` changed, then `invoked` also lose accuracy.
if (i > 0) {
checkWhetherDestroyed();
copyinvokers = list(invocation);
// check again
checkInvokers(copyinvokers, invocation);
}
Invoker<T> invoker = select(loadbalance, invocation, copyinvokers, invoked);
invoked.add(invoker);
RpcContext.getContext().setInvokers((List) invoked);
try {
Result result = invoker.invoke(invocation);
if (le != null && logger.isWarnEnabled()) {
logger.warn("Although retry the method " + invocation.getMethodName() + " in the service " + getInterface().getName() + " was successful by the provider " + invoker.getUrl().getAddress() + ", but there have been failed providers " + providers + " (" + providers.size() + "/" + copyinvokers.size() + ") from the registry " + directory.getUrl().getAddress() + " on the consumer " + NetUtils.getLocalHost() + " using the dubbo version " + Version.getVersion() + ". Last error is: " + le.getMessage(), le);
}
return result;
} catch (RpcException e) {
if (e.isBiz()) {
// biz exception.
throw e;
}
le = e;
} catch (Throwable e) {
le = new RpcException(e.getMessage(), e);
} finally {
providers.add(invoker.getUrl().getAddress());
}
}
throw new RpcException(le != null ? le.getCode() : 0, "Failed to invoke the method " + invocation.getMethodName() + " in the service " + getInterface().getName() + ". Tried " + len + " times of the providers " + providers + " (" + providers.size() + "/" + copyinvokers.size() + ") from the registry " + directory.getUrl().getAddress() + " on the consumer " + NetUtils.getLocalHost() + " using the dubbo version " + Version.getVersion() + ". Last error is: " + (le != null ? le.getMessage() : ""), le != null && le.getCause() != null ? le.getCause() : le);
}
use of com.alibaba.dubbo.rpc.RpcException in project dubbo by alibaba.
the class ForkingClusterInvoker method doInvoke.
@SuppressWarnings({ "unchecked", "rawtypes" })
public Result doInvoke(final Invocation invocation, List<Invoker<T>> invokers, LoadBalance loadbalance) throws RpcException {
checkInvokers(invokers, invocation);
final List<Invoker<T>> selected;
final int forks = getUrl().getParameter(Constants.FORKS_KEY, Constants.DEFAULT_FORKS);
final int timeout = getUrl().getParameter(Constants.TIMEOUT_KEY, Constants.DEFAULT_TIMEOUT);
if (forks <= 0 || forks >= invokers.size()) {
selected = invokers;
} else {
selected = new ArrayList<Invoker<T>>();
for (int i = 0; i < forks; i++) {
// TODO. Add some comment here, refer chinese version for more details.
Invoker<T> invoker = select(loadbalance, invocation, invokers, selected);
if (!selected.contains(invoker)) {
// Avoid add the same invoker several times.
selected.add(invoker);
}
}
}
RpcContext.getContext().setInvokers((List) selected);
final AtomicInteger count = new AtomicInteger();
final BlockingQueue<Object> ref = new LinkedBlockingQueue<Object>();
for (final Invoker<T> invoker : selected) {
executor.execute(new Runnable() {
public void run() {
try {
Result result = invoker.invoke(invocation);
ref.offer(result);
} catch (Throwable e) {
int value = count.incrementAndGet();
if (value >= selected.size()) {
ref.offer(e);
}
}
}
});
}
try {
Object ret = ref.poll(timeout, TimeUnit.MILLISECONDS);
if (ret instanceof Throwable) {
Throwable e = (Throwable) ret;
throw new RpcException(e instanceof RpcException ? ((RpcException) e).getCode() : 0, "Failed to forking invoke provider " + selected + ", but no luck to perform the invocation. Last error is: " + e.getMessage(), e.getCause() != null ? e.getCause() : e);
}
return (Result) ret;
} catch (InterruptedException e) {
throw new RpcException("Failed to forking invoke provider " + selected + ", but no luck to perform the invocation. Last error is: " + e.getMessage(), e);
}
}
Aggregations