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[pinpoint-apm#4558] Add gRPC StatusError
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29 changes: 29 additions & 0 deletions
29
grpc/src/main/java/com/navercorp/pinpoint/grpc/StatusError.java
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| /* | ||
| * Copyright 2019 NAVER Corp. | ||
| * | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
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| package com.navercorp.pinpoint.grpc; | ||
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| /** | ||
| * @author jaehong.kim | ||
| */ | ||
| public interface StatusError { | ||
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| boolean isSimpleError(); | ||
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| String getMessage(); | ||
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| Throwable getThrowable(); | ||
| } |
110 changes: 110 additions & 0 deletions
110
grpc/src/main/java/com/navercorp/pinpoint/grpc/StatusErrors.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,110 @@ | ||
| /* | ||
| * Copyright 2019 NAVER Corp. | ||
| * | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
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| package com.navercorp.pinpoint.grpc; | ||
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| import io.grpc.Status; | ||
| import io.grpc.StatusRuntimeException; | ||
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| /** | ||
| * @author jaehong.kim | ||
| */ | ||
| public class StatusErrors { | ||
| private static final String CONNECTION_REFUSED_MESSAGE = "Connection refused: no further information"; | ||
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| public static StatusError throwable(final Throwable t) { | ||
| if (t instanceof StatusRuntimeException) { | ||
| StatusRuntimeException exception = (StatusRuntimeException) t; | ||
| if (exception.getStatus().getCode() == Status.UNAVAILABLE.getCode()) { | ||
| final String causeMessage = findCauseMessage(t, CONNECTION_REFUSED_MESSAGE, 2); | ||
| if (causeMessage != null) { | ||
| final String message = exception.getStatus().getDescription() + ": " + causeMessage; | ||
| return new SimpleStatusError(message, t); | ||
| } | ||
| } | ||
| } | ||
| return new DefaultStatusError(t); | ||
| } | ||
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| private static String findCauseMessage(final Throwable t, final String message, final int maxDepth) { | ||
| int depth = 0; | ||
| Throwable cause = t.getCause(); | ||
| while (cause != null && depth < maxDepth) { | ||
| if (cause.getMessage().startsWith(message)) { | ||
| return cause.getMessage(); | ||
| } | ||
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| if (cause.getCause() == cause) { | ||
| break; | ||
| } | ||
| cause = cause.getCause(); | ||
| depth += 1; | ||
| } | ||
| // Not found | ||
| return null; | ||
| } | ||
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| private static class SimpleStatusError implements StatusError { | ||
| private final String message; | ||
| private final Throwable throwable; | ||
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| public SimpleStatusError(final String message, final Throwable throwable) { | ||
| this.message = message; | ||
| this.throwable = throwable; | ||
| } | ||
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| @Override | ||
| public boolean isSimpleError() { | ||
| return true; | ||
| } | ||
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| @Override | ||
| public String getMessage() { | ||
| return this.message; | ||
| } | ||
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| @Override | ||
| public Throwable getThrowable() { | ||
| return this.throwable; | ||
| } | ||
| } | ||
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| private static class DefaultStatusError implements StatusError { | ||
| private final Throwable throwable; | ||
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| public DefaultStatusError(final Throwable throwable) { | ||
| this.throwable = throwable; | ||
| } | ||
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| @Override | ||
| public boolean isSimpleError() { | ||
| return false; | ||
| } | ||
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| @Override | ||
| public String getMessage() { | ||
| if (this.throwable != null) { | ||
| return this.throwable.getMessage(); | ||
| } | ||
| return ""; | ||
| } | ||
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| @Override | ||
| public Throwable getThrowable() { | ||
| return this.throwable; | ||
| } | ||
| } | ||
| } |
37 changes: 37 additions & 0 deletions
37
grpc/src/test/java/com/navercorp/pinpoint/grpc/StatusErrorsTest.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,37 @@ | ||
| /* | ||
| * Copyright 2019 NAVER Corp. | ||
| * | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
|
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| package com.navercorp.pinpoint.grpc; | ||
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| import org.junit.Test; | ||
| import org.slf4j.Logger; | ||
| import org.slf4j.LoggerFactory; | ||
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| import static org.junit.Assert.*; | ||
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| /** | ||
| * @author jaehong.kim | ||
| */ | ||
| public class StatusErrorsTest { | ||
| private final Logger logger = LoggerFactory.getLogger(getClass()); | ||
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| @Test | ||
| public void throwable() { | ||
| StatusError statusError = StatusErrors.throwable(new RuntimeException("test")); | ||
| assertEquals("test", statusError.getMessage()); | ||
| assertFalse(statusError.isSimpleError()); | ||
| } | ||
| } |
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