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  3. org.apache.hadoop.io.retry.UnreliableInterface.UnreliableException

Java 类org.apache.hadoop.io.retry.UnreliableInterface.UnreliableException 实例源码

项目：hadoop-oss    文件：TestRetryProxy.java    
@Test
public void testRetryByException() throws UnreliableException {
  Map<Class<? extends Exception>, RetryPolicy> exceptionToPolicyMap =
    Collections.<Class<? extends Exception>, RetryPolicy>singletonMap(FatalException.class, TRY_ONCE_THEN_FAIL);

  UnreliableInterface unreliable = (UnreliableInterface)
    RetryProxy.create(UnreliableInterface.class, unreliableImpl,
                      retryByException(RETRY_FOREVER, exceptionToPolicyMap));
  unreliable.failsOnceThenSucceeds();
  try {
    unreliable.alwaysFailsWithFatalException();
    fail("Should fail");
  } catch (FatalException e) {
    // expected
  }
}
项目：hadoop-oss    文件：TestFailoverProxy.java    
@Test
public void testSuccedsOnceThenFailOver() throws UnreliableException,
    IOException, StandbyException {
  UnreliableInterface unreliable = (UnreliableInterface)RetryProxy.create(
      UnreliableInterface.class, newFlipFlopProxyProvider(),
      new FailOverOnceOnAnyExceptionPolicy());

  assertEquals("impl1", unreliable.succeedsOnceThenFailsReturningString());
  assertEquals("impl2", unreliable.succeedsOnceThenFailsReturningString());
  try {
    unreliable.succeedsOnceThenFailsReturningString();
    fail("should not have succeeded more than twice");
  } catch (UnreliableException e) {
    // expected
  }
}
项目：hadoop-oss    文件：TestFailoverProxy.java    
@Test
public void testNeverFailOver() throws UnreliableException,
    IOException, StandbyException {
  UnreliableInterface unreliable = (UnreliableInterface)RetryProxy.create(
      UnreliableInterface.class,
      newFlipFlopProxyProvider(),
      RetryPolicies.TRY_ONCE_THEN_FAIL);

  unreliable.succeedsOnceThenFailsReturningString();
  try {
    unreliable.succeedsOnceThenFailsReturningString();
    fail("should not have succeeded twice");
  } catch (UnreliableException e) {
    assertEquals("impl1", e.getMessage());
  }
}
项目：hadoop-oss    文件：TestFailoverProxy.java    
@Test
public void testFailoverOnNetworkExceptionIdempotentOperation()
    throws UnreliableException, IOException, StandbyException {
  UnreliableInterface unreliable = (UnreliableInterface)RetryProxy.create(
      UnreliableInterface.class,
      newFlipFlopProxyProvider(
          TypeOfExceptionToFailWith.IO_EXCEPTION,
          TypeOfExceptionToFailWith.UNRELIABLE_EXCEPTION),
      RetryPolicies.failoverOnNetworkException(1));

  assertEquals("impl1", unreliable.succeedsOnceThenFailsReturningString());
  try {
    unreliable.succeedsOnceThenFailsReturningString();
    fail("should not have succeeded twice");
  } catch (IOException e) {
    // Make sure we *don't* fail over since the first implementation threw an
    // IOException and this method is not idempotent
    assertEquals("impl1", e.getMessage());
  }

  assertEquals("impl1", unreliable.succeedsOnceThenFailsReturningStringIdempotent());
  // Make sure we fail over since the first implementation threw an
  // IOException and this method is idempotent.
  assertEquals("impl2", unreliable.succeedsOnceThenFailsReturningStringIdempotent());
}
项目：hadoop    文件：TestRetryProxy.java    
@Test
public void testRetryByException() throws UnreliableException {
  Map<Class<? extends Exception>, RetryPolicy> exceptionToPolicyMap =
    Collections.<Class<? extends Exception>, RetryPolicy>singletonMap(FatalException.class, TRY_ONCE_THEN_FAIL);

  UnreliableInterface unreliable = (UnreliableInterface)
    RetryProxy.create(UnreliableInterface.class, unreliableImpl,
                      retryByException(RETRY_FOREVER, exceptionToPolicyMap));
  unreliable.failsOnceThenSucceeds();
  try {
    unreliable.alwaysFailsWithFatalException();
    fail("Should fail");
  } catch (FatalException e) {
    // expected
  }
}
项目：hadoop    文件：TestFailoverProxy.java    
@Test
public void testSuccedsOnceThenFailOver() throws UnreliableException,
    IOException, StandbyException {
  UnreliableInterface unreliable = (UnreliableInterface)RetryProxy.create(
      UnreliableInterface.class, newFlipFlopProxyProvider(),
      new FailOverOnceOnAnyExceptionPolicy());

  assertEquals("impl1", unreliable.succeedsOnceThenFailsReturningString());
  assertEquals("impl2", unreliable.succeedsOnceThenFailsReturningString());
  try {
    unreliable.succeedsOnceThenFailsReturningString();
    fail("should not have succeeded more than twice");
  } catch (UnreliableException e) {
    // expected
  }
}
项目：hadoop    文件：TestFailoverProxy.java    
@Test
public void testNeverFailOver() throws UnreliableException,
    IOException, StandbyException {
  UnreliableInterface unreliable = (UnreliableInterface)RetryProxy.create(
      UnreliableInterface.class,
      newFlipFlopProxyProvider(),
      RetryPolicies.TRY_ONCE_THEN_FAIL);

  unreliable.succeedsOnceThenFailsReturningString();
  try {
    unreliable.succeedsOnceThenFailsReturningString();
    fail("should not have succeeded twice");
  } catch (UnreliableException e) {
    assertEquals("impl1", e.getMessage());
  }
}
项目：hadoop    文件：TestFailoverProxy.java    
@Test
public void testFailoverOnNetworkExceptionIdempotentOperation()
    throws UnreliableException, IOException, StandbyException {
  UnreliableInterface unreliable = (UnreliableInterface)RetryProxy.create(
      UnreliableInterface.class,
      newFlipFlopProxyProvider(
          TypeOfExceptionToFailWith.IO_EXCEPTION,
          TypeOfExceptionToFailWith.UNRELIABLE_EXCEPTION),
      RetryPolicies.failoverOnNetworkException(1));

  assertEquals("impl1", unreliable.succeedsOnceThenFailsReturningString());
  try {
    unreliable.succeedsOnceThenFailsReturningString();
    fail("should not have succeeded twice");
  } catch (IOException e) {
    // Make sure we *don't* fail over since the first implementation threw an
    // IOException and this method is not idempotent
    assertEquals("impl1", e.getMessage());
  }

  assertEquals("impl1", unreliable.succeedsOnceThenFailsReturningStringIdempotent());
  // Make sure we fail over since the first implementation threw an
  // IOException and this method is idempotent.
  assertEquals("impl2", unreliable.succeedsOnceThenFailsReturningStringIdempotent());
}
项目：aliyun-oss-hadoop-fs    文件：TestRetryProxy.java    
@Test
public void testRetryByException() throws UnreliableException {
  Map<Class<? extends Exception>, RetryPolicy> exceptionToPolicyMap =
    Collections.<Class<? extends Exception>, RetryPolicy>singletonMap(FatalException.class, TRY_ONCE_THEN_FAIL);

  UnreliableInterface unreliable = (UnreliableInterface)
    RetryProxy.create(UnreliableInterface.class, unreliableImpl,
                      retryByException(RETRY_FOREVER, exceptionToPolicyMap));
  unreliable.failsOnceThenSucceeds();
  try {
    unreliable.alwaysFailsWithFatalException();
    fail("Should fail");
  } catch (FatalException e) {
    // expected
  }
}
项目：aliyun-oss-hadoop-fs    文件：TestFailoverProxy.java    
@Test
public void testSuccedsOnceThenFailOver() throws UnreliableException,
    IOException, StandbyException {
  UnreliableInterface unreliable = (UnreliableInterface)RetryProxy.create(
      UnreliableInterface.class, newFlipFlopProxyProvider(),
      new FailOverOnceOnAnyExceptionPolicy());

  assertEquals("impl1", unreliable.succeedsOnceThenFailsReturningString());
  assertEquals("impl2", unreliable.succeedsOnceThenFailsReturningString());
  try {
    unreliable.succeedsOnceThenFailsReturningString();
    fail("should not have succeeded more than twice");
  } catch (UnreliableException e) {
    // expected
  }
}
项目：aliyun-oss-hadoop-fs    文件：TestFailoverProxy.java    
@Test
public void testNeverFailOver() throws UnreliableException,
    IOException, StandbyException {
  UnreliableInterface unreliable = (UnreliableInterface)RetryProxy.create(
      UnreliableInterface.class,
      newFlipFlopProxyProvider(),
      RetryPolicies.TRY_ONCE_THEN_FAIL);

  unreliable.succeedsOnceThenFailsReturningString();
  try {
    unreliable.succeedsOnceThenFailsReturningString();
    fail("should not have succeeded twice");
  } catch (UnreliableException e) {
    assertEquals("impl1", e.getMessage());
  }
}
项目：aliyun-oss-hadoop-fs    文件：TestFailoverProxy.java    
@Test
public void testFailoverOnNetworkExceptionIdempotentOperation()
    throws UnreliableException, IOException, StandbyException {
  UnreliableInterface unreliable = (UnreliableInterface)RetryProxy.create(
      UnreliableInterface.class,
      newFlipFlopProxyProvider(
          TypeOfExceptionToFailWith.IO_EXCEPTION,
          TypeOfExceptionToFailWith.UNRELIABLE_EXCEPTION),
      RetryPolicies.failoverOnNetworkException(1));

  assertEquals("impl1", unreliable.succeedsOnceThenFailsReturningString());
  try {
    unreliable.succeedsOnceThenFailsReturningString();
    fail("should not have succeeded twice");
  } catch (IOException e) {
    // Make sure we *don't* fail over since the first implementation threw an
    // IOException and this method is not idempotent
    assertEquals("impl1", e.getMessage());
  }

  assertEquals("impl1", unreliable.succeedsOnceThenFailsReturningStringIdempotent());
  // Make sure we fail over since the first implementation threw an
  // IOException and this method is idempotent.
  assertEquals("impl2", unreliable.succeedsOnceThenFailsReturningStringIdempotent());
}
项目：big-c    文件：TestRetryProxy.java    
@Test
public void testRetryByException() throws UnreliableException {
  Map<Class<? extends Exception>, RetryPolicy> exceptionToPolicyMap =
    Collections.<Class<? extends Exception>, RetryPolicy>singletonMap(FatalException.class, TRY_ONCE_THEN_FAIL);

  UnreliableInterface unreliable = (UnreliableInterface)
    RetryProxy.create(UnreliableInterface.class, unreliableImpl,
                      retryByException(RETRY_FOREVER, exceptionToPolicyMap));
  unreliable.failsOnceThenSucceeds();
  try {
    unreliable.alwaysFailsWithFatalException();
    fail("Should fail");
  } catch (FatalException e) {
    // expected
  }
}
项目：big-c    文件：TestFailoverProxy.java    
@Test
public void testSuccedsOnceThenFailOver() throws UnreliableException,
    IOException, StandbyException {
  UnreliableInterface unreliable = (UnreliableInterface)RetryProxy.create(
      UnreliableInterface.class, newFlipFlopProxyProvider(),
      new FailOverOnceOnAnyExceptionPolicy());

  assertEquals("impl1", unreliable.succeedsOnceThenFailsReturningString());
  assertEquals("impl2", unreliable.succeedsOnceThenFailsReturningString());
  try {
    unreliable.succeedsOnceThenFailsReturningString();
    fail("should not have succeeded more than twice");
  } catch (UnreliableException e) {
    // expected
  }
}
项目：big-c    文件：TestFailoverProxy.java    
@Test
public void testNeverFailOver() throws UnreliableException,
    IOException, StandbyException {
  UnreliableInterface unreliable = (UnreliableInterface)RetryProxy.create(
      UnreliableInterface.class,
      newFlipFlopProxyProvider(),
      RetryPolicies.TRY_ONCE_THEN_FAIL);

  unreliable.succeedsOnceThenFailsReturningString();
  try {
    unreliable.succeedsOnceThenFailsReturningString();
    fail("should not have succeeded twice");
  } catch (UnreliableException e) {
    assertEquals("impl1", e.getMessage());
  }
}
项目：big-c    文件：TestFailoverProxy.java    
@Test
public void testFailoverOnNetworkExceptionIdempotentOperation()
    throws UnreliableException, IOException, StandbyException {
  UnreliableInterface unreliable = (UnreliableInterface)RetryProxy.create(
      UnreliableInterface.class,
      newFlipFlopProxyProvider(
          TypeOfExceptionToFailWith.IO_EXCEPTION,
          TypeOfExceptionToFailWith.UNRELIABLE_EXCEPTION),
      RetryPolicies.failoverOnNetworkException(1));

  assertEquals("impl1", unreliable.succeedsOnceThenFailsReturningString());
  try {
    unreliable.succeedsOnceThenFailsReturningString();
    fail("should not have succeeded twice");
  } catch (IOException e) {
    // Make sure we *don't* fail over since the first implementation threw an
    // IOException and this method is not idempotent
    assertEquals("impl1", e.getMessage());
  }

  assertEquals("impl1", unreliable.succeedsOnceThenFailsReturningStringIdempotent());
  // Make sure we fail over since the first implementation threw an
  // IOException and this method is idempotent.
  assertEquals("impl2", unreliable.succeedsOnceThenFailsReturningStringIdempotent());
}
项目：hadoop-2.6.0-cdh5.4.3    文件：TestRetryProxy.java    
@Test
public void testRetryByException() throws UnreliableException {
  Map<Class<? extends Exception>, RetryPolicy> exceptionToPolicyMap =
    Collections.<Class<? extends Exception>, RetryPolicy>singletonMap(FatalException.class, TRY_ONCE_THEN_FAIL);

  UnreliableInterface unreliable = (UnreliableInterface)
    RetryProxy.create(UnreliableInterface.class, unreliableImpl,
                      retryByException(RETRY_FOREVER, exceptionToPolicyMap));
  unreliable.failsOnceThenSucceeds();
  try {
    unreliable.alwaysFailsWithFatalException();
    fail("Should fail");
  } catch (FatalException e) {
    // expected
  }
}
项目：hadoop-2.6.0-cdh5.4.3    文件：TestFailoverProxy.java    
@Test
public void testSuccedsOnceThenFailOver() throws UnreliableException,
    IOException, StandbyException {
  UnreliableInterface unreliable = (UnreliableInterface)RetryProxy.create(
      UnreliableInterface.class, newFlipFlopProxyProvider(),
      new FailOverOnceOnAnyExceptionPolicy());

  assertEquals("impl1", unreliable.succeedsOnceThenFailsReturningString());
  assertEquals("impl2", unreliable.succeedsOnceThenFailsReturningString());
  try {
    unreliable.succeedsOnceThenFailsReturningString();
    fail("should not have succeeded more than twice");
  } catch (UnreliableException e) {
    // expected
  }
}
项目：hadoop-2.6.0-cdh5.4.3    文件：TestFailoverProxy.java    
@Test
public void testNeverFailOver() throws UnreliableException,
    IOException, StandbyException {
  UnreliableInterface unreliable = (UnreliableInterface)RetryProxy.create(
      UnreliableInterface.class,
      newFlipFlopProxyProvider(),
      RetryPolicies.TRY_ONCE_THEN_FAIL);

  unreliable.succeedsOnceThenFailsReturningString();
  try {
    unreliable.succeedsOnceThenFailsReturningString();
    fail("should not have succeeded twice");
  } catch (UnreliableException e) {
    assertEquals("impl1", e.getMessage());
  }
}
项目：hadoop-2.6.0-cdh5.4.3    文件：TestFailoverProxy.java    
@Test
public void testFailoverOnNetworkExceptionIdempotentOperation()
    throws UnreliableException, IOException, StandbyException {
  UnreliableInterface unreliable = (UnreliableInterface)RetryProxy.create(
      UnreliableInterface.class,
      newFlipFlopProxyProvider(
          TypeOfExceptionToFailWith.IO_EXCEPTION,
          TypeOfExceptionToFailWith.UNRELIABLE_EXCEPTION),
      RetryPolicies.failoverOnNetworkException(1));

  assertEquals("impl1", unreliable.succeedsOnceThenFailsReturningString());
  try {
    unreliable.succeedsOnceThenFailsReturningString();
    fail("should not have succeeded twice");
  } catch (IOException e) {
    // Make sure we *don't* fail over since the first implementation threw an
    // IOException and this method is not idempotent
    assertEquals("impl1", e.getMessage());
  }

  assertEquals("impl1", unreliable.succeedsOnceThenFailsReturningStringIdempotent());
  // Make sure we fail over since the first implementation threw an
  // IOException and this method is idempotent.
  assertEquals("impl2", unreliable.succeedsOnceThenFailsReturningStringIdempotent());
}
项目：hadoop-plus    文件：TestFailoverProxy.java    
@Test
public void testSuccedsOnceThenFailOver() throws UnreliableException,
    IOException, StandbyException {
  UnreliableInterface unreliable = (UnreliableInterface)RetryProxy
      .create(UnreliableInterface.class,
          new FlipFlopProxyProvider(UnreliableInterface.class,
            new UnreliableImplementation("impl1"),
            new UnreliableImplementation("impl2")),
          new FailOverOnceOnAnyExceptionPolicy());

  assertEquals("impl1", unreliable.succeedsOnceThenFailsReturningString());
  assertEquals("impl2", unreliable.succeedsOnceThenFailsReturningString());
  try {
    unreliable.succeedsOnceThenFailsReturningString();
    fail("should not have succeeded more than twice");
  } catch (UnreliableException e) {
    // expected
  }
}
项目：hadoop-plus    文件：TestFailoverProxy.java    
@Test
public void testNeverFailOver() throws UnreliableException,
    IOException, StandbyException {
  UnreliableInterface unreliable = (UnreliableInterface)RetryProxy
  .create(UnreliableInterface.class,
      new FlipFlopProxyProvider(UnreliableInterface.class,
        new UnreliableImplementation("impl1"),
        new UnreliableImplementation("impl2")),
      RetryPolicies.TRY_ONCE_THEN_FAIL);

  unreliable.succeedsOnceThenFailsReturningString();
  try {
    unreliable.succeedsOnceThenFailsReturningString();
    fail("should not have succeeded twice");
  } catch (UnreliableException e) {
    assertEquals("impl1", e.getMessage());
  }
}
项目：hadoop-plus    文件：TestFailoverProxy.java    
@Test
public void testFailoverOnNetworkExceptionIdempotentOperation()
    throws UnreliableException, IOException, StandbyException {
  UnreliableInterface unreliable = (UnreliableInterface)RetryProxy
  .create(UnreliableInterface.class,
      new FlipFlopProxyProvider(UnreliableInterface.class,
        new UnreliableImplementation("impl1", TypeOfExceptionToFailWith.IO_EXCEPTION),
        new UnreliableImplementation("impl2", TypeOfExceptionToFailWith.UNRELIABLE_EXCEPTION)),
      RetryPolicies.failoverOnNetworkException(1));

  assertEquals("impl1", unreliable.succeedsOnceThenFailsReturningString());
  try {
    unreliable.succeedsOnceThenFailsReturningString();
    fail("should not have succeeded twice");
  } catch (IOException e) {
    // Make sure we *don't* fail over since the first implementation threw an
    // IOException and this method is not idempotent
    assertEquals("impl1", e.getMessage());
  }

  assertEquals("impl1", unreliable.succeedsOnceThenFailsReturningStringIdempotent());
  // Make sure we fail over since the first implementation threw an
  // IOException and this method is idempotent.
  assertEquals("impl2", unreliable.succeedsOnceThenFailsReturningStringIdempotent());
}
项目：hops    文件：TestRetryProxy.java    
@Test
public void testRetryByException() throws UnreliableException {
  Map<Class<? extends Exception>, RetryPolicy> exceptionToPolicyMap =
    Collections.<Class<? extends Exception>, RetryPolicy>singletonMap(FatalException.class, TRY_ONCE_THEN_FAIL);

  UnreliableInterface unreliable = (UnreliableInterface)
    RetryProxy.create(UnreliableInterface.class, unreliableImpl,
                      retryByException(RETRY_FOREVER, exceptionToPolicyMap));
  unreliable.failsOnceThenSucceeds();
  try {
    unreliable.alwaysFailsWithFatalException();
    fail("Should fail");
  } catch (FatalException e) {
    // expected
  }
}
项目：hops    文件：TestFailoverProxy.java    
@Test
public void testSuccedsOnceThenFailOver() throws UnreliableException,
    IOException, StandbyException {
  UnreliableInterface unreliable = (UnreliableInterface)RetryProxy.create(
      UnreliableInterface.class, newFlipFlopProxyProvider(),
      new FailOverOnceOnAnyExceptionPolicy());

  assertEquals("impl1", unreliable.succeedsOnceThenFailsReturningString());
  assertEquals("impl2", unreliable.succeedsOnceThenFailsReturningString());
  try {
    unreliable.succeedsOnceThenFailsReturningString();
    fail("should not have succeeded more than twice");
  } catch (UnreliableException e) {
    // expected
  }
}
项目：hops    文件：TestFailoverProxy.java    
@Test
public void testNeverFailOver() throws UnreliableException,
    IOException, StandbyException {
  UnreliableInterface unreliable = (UnreliableInterface)RetryProxy.create(
      UnreliableInterface.class,
      newFlipFlopProxyProvider(),
      RetryPolicies.TRY_ONCE_THEN_FAIL);

  unreliable.succeedsOnceThenFailsReturningString();
  try {
    unreliable.succeedsOnceThenFailsReturningString();
    fail("should not have succeeded twice");
  } catch (UnreliableException e) {
    assertEquals("impl1", e.getMessage());
  }
}
项目：hops    文件：TestFailoverProxy.java    
@Test
public void testFailoverOnNetworkExceptionIdempotentOperation()
    throws UnreliableException, IOException, StandbyException {
  UnreliableInterface unreliable = (UnreliableInterface)RetryProxy.create(
      UnreliableInterface.class,
      newFlipFlopProxyProvider(
          TypeOfExceptionToFailWith.IO_EXCEPTION,
          TypeOfExceptionToFailWith.UNRELIABLE_EXCEPTION),
      RetryPolicies.failoverOnNetworkException(1));

  assertEquals("impl1", unreliable.succeedsOnceThenFailsReturningString());
  try {
    unreliable.succeedsOnceThenFailsReturningString();
    fail("should not have succeeded twice");
  } catch (IOException e) {
    // Make sure we *don't* fail over since the first implementation threw an
    // IOException and this method is not idempotent
    assertEquals("impl1", e.getMessage());
  }

  assertEquals("impl1", unreliable.succeedsOnceThenFailsReturningStringIdempotent());
  // Make sure we fail over since the first implementation threw an
  // IOException and this method is idempotent.
  assertEquals("impl2", unreliable.succeedsOnceThenFailsReturningStringIdempotent());
}
项目：hadoop-TCP    文件：TestFailoverProxy.java    
@Test
public void testSuccedsOnceThenFailOver() throws UnreliableException,
    IOException, StandbyException {
  UnreliableInterface unreliable = (UnreliableInterface)RetryProxy.create(
      UnreliableInterface.class, newFlipFlopProxyProvider(),
      new FailOverOnceOnAnyExceptionPolicy());

  assertEquals("impl1", unreliable.succeedsOnceThenFailsReturningString());
  assertEquals("impl2", unreliable.succeedsOnceThenFailsReturningString());
  try {
    unreliable.succeedsOnceThenFailsReturningString();
    fail("should not have succeeded more than twice");
  } catch (UnreliableException e) {
    // expected
  }
}
项目：hadoop-TCP    文件：TestFailoverProxy.java    
@Test
public void testNeverFailOver() throws UnreliableException,
    IOException, StandbyException {
  UnreliableInterface unreliable = (UnreliableInterface)RetryProxy.create(
      UnreliableInterface.class,
      newFlipFlopProxyProvider(),
      RetryPolicies.TRY_ONCE_THEN_FAIL);

  unreliable.succeedsOnceThenFailsReturningString();
  try {
    unreliable.succeedsOnceThenFailsReturningString();
    fail("should not have succeeded twice");
  } catch (UnreliableException e) {
    assertEquals("impl1", e.getMessage());
  }
}
项目：hadoop-TCP    文件：TestFailoverProxy.java    
@Test
public void testFailoverOnNetworkExceptionIdempotentOperation()
    throws UnreliableException, IOException, StandbyException {
  UnreliableInterface unreliable = (UnreliableInterface)RetryProxy.create(
      UnreliableInterface.class,
      newFlipFlopProxyProvider(
          TypeOfExceptionToFailWith.IO_EXCEPTION,
          TypeOfExceptionToFailWith.UNRELIABLE_EXCEPTION),
      RetryPolicies.failoverOnNetworkException(1));

  assertEquals("impl1", unreliable.succeedsOnceThenFailsReturningString());
  try {
    unreliable.succeedsOnceThenFailsReturningString();
    fail("should not have succeeded twice");
  } catch (IOException e) {
    // Make sure we *don't* fail over since the first implementation threw an
    // IOException and this method is not idempotent
    assertEquals("impl1", e.getMessage());
  }

  assertEquals("impl1", unreliable.succeedsOnceThenFailsReturningStringIdempotent());
  // Make sure we fail over since the first implementation threw an
  // IOException and this method is idempotent.
  assertEquals("impl2", unreliable.succeedsOnceThenFailsReturningStringIdempotent());
}
项目：hardfs    文件：TestFailoverProxy.java    
@Test
public void testSuccedsOnceThenFailOver() throws UnreliableException,
    IOException, StandbyException {
  UnreliableInterface unreliable = (UnreliableInterface)RetryProxy.create(
      UnreliableInterface.class, newFlipFlopProxyProvider(),
      new FailOverOnceOnAnyExceptionPolicy());

  assertEquals("impl1", unreliable.succeedsOnceThenFailsReturningString());
  assertEquals("impl2", unreliable.succeedsOnceThenFailsReturningString());
  try {
    unreliable.succeedsOnceThenFailsReturningString();
    fail("should not have succeeded more than twice");
  } catch (UnreliableException e) {
    // expected
  }
}
项目：hardfs    文件：TestFailoverProxy.java    
@Test
public void testNeverFailOver() throws UnreliableException,
    IOException, StandbyException {
  UnreliableInterface unreliable = (UnreliableInterface)RetryProxy.create(
      UnreliableInterface.class,
      newFlipFlopProxyProvider(),
      RetryPolicies.TRY_ONCE_THEN_FAIL);

  unreliable.succeedsOnceThenFailsReturningString();
  try {
    unreliable.succeedsOnceThenFailsReturningString();
    fail("should not have succeeded twice");
  } catch (UnreliableException e) {
    assertEquals("impl1", e.getMessage());
  }
}
项目：hardfs    文件：TestFailoverProxy.java    
@Test
public void testFailoverOnNetworkExceptionIdempotentOperation()
    throws UnreliableException, IOException, StandbyException {
  UnreliableInterface unreliable = (UnreliableInterface)RetryProxy.create(
      UnreliableInterface.class,
      newFlipFlopProxyProvider(
          TypeOfExceptionToFailWith.IO_EXCEPTION,
          TypeOfExceptionToFailWith.UNRELIABLE_EXCEPTION),
      RetryPolicies.failoverOnNetworkException(1));

  assertEquals("impl1", unreliable.succeedsOnceThenFailsReturningString());
  try {
    unreliable.succeedsOnceThenFailsReturningString();
    fail("should not have succeeded twice");
  } catch (IOException e) {
    // Make sure we *don't* fail over since the first implementation threw an
    // IOException and this method is not idempotent
    assertEquals("impl1", e.getMessage());
  }

  assertEquals("impl1", unreliable.succeedsOnceThenFailsReturningStringIdempotent());
  // Make sure we fail over since the first implementation threw an
  // IOException and this method is idempotent.
  assertEquals("impl2", unreliable.succeedsOnceThenFailsReturningStringIdempotent());
}
项目：hadoop-on-lustre2    文件：TestFailoverProxy.java    
@Test
public void testSuccedsOnceThenFailOver() throws UnreliableException,
    IOException, StandbyException {
  UnreliableInterface unreliable = (UnreliableInterface)RetryProxy.create(
      UnreliableInterface.class, newFlipFlopProxyProvider(),
      new FailOverOnceOnAnyExceptionPolicy());

  assertEquals("impl1", unreliable.succeedsOnceThenFailsReturningString());
  assertEquals("impl2", unreliable.succeedsOnceThenFailsReturningString());
  try {
    unreliable.succeedsOnceThenFailsReturningString();
    fail("should not have succeeded more than twice");
  } catch (UnreliableException e) {
    // expected
  }
}
项目：hadoop-on-lustre2    文件：TestFailoverProxy.java    
@Test
public void testNeverFailOver() throws UnreliableException,
    IOException, StandbyException {
  UnreliableInterface unreliable = (UnreliableInterface)RetryProxy.create(
      UnreliableInterface.class,
      newFlipFlopProxyProvider(),
      RetryPolicies.TRY_ONCE_THEN_FAIL);

  unreliable.succeedsOnceThenFailsReturningString();
  try {
    unreliable.succeedsOnceThenFailsReturningString();
    fail("should not have succeeded twice");
  } catch (UnreliableException e) {
    assertEquals("impl1", e.getMessage());
  }
}
项目：hadoop-on-lustre2    文件：TestFailoverProxy.java    
@Test
public void testFailoverOnNetworkExceptionIdempotentOperation()
    throws UnreliableException, IOException, StandbyException {
  UnreliableInterface unreliable = (UnreliableInterface)RetryProxy.create(
      UnreliableInterface.class,
      newFlipFlopProxyProvider(
          TypeOfExceptionToFailWith.IO_EXCEPTION,
          TypeOfExceptionToFailWith.UNRELIABLE_EXCEPTION),
      RetryPolicies.failoverOnNetworkException(1));

  assertEquals("impl1", unreliable.succeedsOnceThenFailsReturningString());
  try {
    unreliable.succeedsOnceThenFailsReturningString();
    fail("should not have succeeded twice");
  } catch (IOException e) {
    // Make sure we *don't* fail over since the first implementation threw an
    // IOException and this method is not idempotent
    assertEquals("impl1", e.getMessage());
  }

  assertEquals("impl1", unreliable.succeedsOnceThenFailsReturningStringIdempotent());
  // Make sure we fail over since the first implementation threw an
  // IOException and this method is idempotent.
  assertEquals("impl2", unreliable.succeedsOnceThenFailsReturningStringIdempotent());
}
项目：hadoop-oss    文件：TestRetryProxy.java    
@Test
public void testRetryForever() throws UnreliableException {
  UnreliableInterface unreliable = (UnreliableInterface)
    RetryProxy.create(UnreliableInterface.class, unreliableImpl, RETRY_FOREVER);
  unreliable.alwaysSucceeds();
  unreliable.failsOnceThenSucceeds();
  unreliable.failsTenTimesThenSucceeds();
}
项目：hadoop-oss    文件：TestRetryProxy.java    
@Test
public void testRetryForeverWithFixedSleep() throws UnreliableException {
  UnreliableInterface unreliable = (UnreliableInterface) RetryProxy.create(
      UnreliableInterface.class, unreliableImpl,
      retryForeverWithFixedSleep(1, TimeUnit.MILLISECONDS));
  unreliable.alwaysSucceeds();
  unreliable.failsOnceThenSucceeds();
  unreliable.failsTenTimesThenSucceeds();
}
项目：hadoop-oss    文件：TestRetryProxy.java    
@Test
public void testRetryUpToMaximumCountWithProportionalSleep() throws UnreliableException {
  UnreliableInterface unreliable = (UnreliableInterface)
    RetryProxy.create(UnreliableInterface.class, unreliableImpl,
                      retryUpToMaximumCountWithProportionalSleep(8, 1, TimeUnit.NANOSECONDS));
  unreliable.alwaysSucceeds();
  unreliable.failsOnceThenSucceeds();
  try {
    unreliable.failsTenTimesThenSucceeds();
    fail("Should fail");
  } catch (UnreliableException e) {
    // expected
  }
}
项目：hadoop-oss    文件：TestRetryProxy.java    
@Test
public void testExponentialRetry() throws UnreliableException {
  UnreliableInterface unreliable = (UnreliableInterface)
    RetryProxy.create(UnreliableInterface.class, unreliableImpl,
                      exponentialBackoffRetry(5, 1L, TimeUnit.NANOSECONDS));
  unreliable.alwaysSucceeds();
  unreliable.failsOnceThenSucceeds();
  try {
    unreliable.failsTenTimesThenSucceeds();
    fail("Should fail");
  } catch (UnreliableException e) {
    // expected
  }
}