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tsp, generate PollingStrategy in emitter (#2757)
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129 changes: 129 additions & 0 deletions
129
javagen/src/main/resources/OperationLocationPollingStrategy.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,129 @@ | ||
| import com.azure.core.exception.AzureException; | ||
| import com.azure.core.http.HttpHeader; | ||
| import com.azure.core.http.rest.Response; | ||
| import com.azure.core.util.BinaryData; | ||
| import com.azure.core.util.logging.ClientLogger; | ||
| import com.azure.core.util.polling.LongRunningOperationStatus; | ||
| import com.azure.core.util.polling.OperationResourcePollingStrategy; | ||
| import com.azure.core.util.polling.PollResponse; | ||
| import com.azure.core.util.polling.PollingContext; | ||
| import com.azure.core.util.polling.PollingStrategyOptions; | ||
| import com.azure.core.util.serializer.JsonSerializerProviders; | ||
| import com.azure.core.util.serializer.ObjectSerializer; | ||
| import com.azure.core.util.serializer.TypeReference; | ||
| import reactor.core.publisher.Mono; | ||
|
|
||
| import java.time.Duration; | ||
| import java.time.OffsetDateTime; | ||
|
|
||
| // DO NOT modify this helper class | ||
|
|
||
| /** | ||
| * Implements an operation location polling strategy, from Operation-Location. | ||
| * | ||
| * @param <T> the type of the response type from a polling call, or BinaryData if raw response body should be kept | ||
| * @param <U> the type of the final result object to deserialize into, or BinaryData if raw response body should be | ||
| * kept | ||
| */ | ||
| public final class OperationLocationPollingStrategy<T, U> extends OperationResourcePollingStrategy<T, U> { | ||
|
|
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| private static final ClientLogger LOGGER = new ClientLogger(OperationLocationPollingStrategy.class); | ||
|
|
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| private final ObjectSerializer serializer; | ||
| private final String endpoint; | ||
| private final String propertyName; | ||
|
|
||
| /** | ||
| * Creates an instance of the operation resource polling strategy. | ||
| * | ||
| * @param pollingStrategyOptions options to configure this polling strategy. | ||
| * @throws NullPointerException if {@code pollingStrategyOptions} is null. | ||
| */ | ||
| public OperationLocationPollingStrategy(PollingStrategyOptions pollingStrategyOptions) { | ||
| this(pollingStrategyOptions, null); | ||
| } | ||
|
|
||
| /** | ||
| * Creates an instance of the operation resource polling strategy. | ||
| * | ||
| * @param pollingStrategyOptions options to configure this polling strategy. | ||
| * @param propertyName the name of the property to extract final result. | ||
| * @throws NullPointerException if {@code pollingStrategyOptions} is null. | ||
| */ | ||
| public OperationLocationPollingStrategy(PollingStrategyOptions pollingStrategyOptions, String propertyName) { | ||
| super(PollingUtils.OPERATION_LOCATION_HEADER, pollingStrategyOptions); | ||
| this.propertyName = propertyName; | ||
| this.endpoint = pollingStrategyOptions.getEndpoint(); | ||
| this.serializer = pollingStrategyOptions.getSerializer() != null | ||
| ? pollingStrategyOptions.getSerializer() | ||
| : JsonSerializerProviders.createInstance(true); | ||
| } | ||
|
|
||
| /** | ||
| * {@inheritDoc} | ||
| */ | ||
| @Override | ||
| public Mono<PollResponse<T>> onInitialResponse(Response<?> response, PollingContext<T> pollingContext, | ||
| TypeReference<T> pollResponseType) { | ||
| // Response<?> is Response<BinaryData> | ||
|
|
||
| HttpHeader operationLocationHeader = response.getHeaders().get(PollingUtils.OPERATION_LOCATION_HEADER); | ||
| if (operationLocationHeader != null) { | ||
| pollingContext.setData(PollingUtils.OPERATION_LOCATION_HEADER.getCaseSensitiveName(), | ||
| PollingUtils.getAbsolutePath(operationLocationHeader.getValue(), endpoint, LOGGER)); | ||
| } | ||
| final String httpMethod = response.getRequest().getHttpMethod().name(); | ||
| pollingContext.setData(PollingUtils.HTTP_METHOD, httpMethod); | ||
| pollingContext.setData(PollingUtils.REQUEST_URL, response.getRequest().getUrl().toString()); | ||
|
|
||
| if (response.getStatusCode() == 200 | ||
| || response.getStatusCode() == 201 | ||
| || response.getStatusCode() == 202 | ||
| || response.getStatusCode() == 204) { | ||
| final Duration retryAfter = PollingUtils.getRetryAfterFromHeaders(response.getHeaders(), OffsetDateTime::now); | ||
| final Mono<PollResponse<T>> pollResponseMono = PollingUtils.deserializeResponse((BinaryData) response.getValue(), serializer, pollResponseType) | ||
| .onErrorResume(exception -> { | ||
| LOGGER.info("Failed to parse initial response."); | ||
| return Mono.empty(); | ||
| }) | ||
| .map(value -> new PollResponse<>(LongRunningOperationStatus.IN_PROGRESS, value, retryAfter)); | ||
| return pollResponseMono.switchIfEmpty( | ||
| Mono.fromSupplier(() -> new PollResponse<>(LongRunningOperationStatus.IN_PROGRESS, null, retryAfter))); | ||
| } else { | ||
| return Mono.error(new AzureException(String.format( | ||
| "Operation failed or cancelled with status code %d," + ", '%s' header: %s, and response body: %s", | ||
| response.getStatusCode(), PollingUtils.OPERATION_LOCATION_HEADER, operationLocationHeader, | ||
| response.getValue()))); | ||
| } | ||
| } | ||
|
|
||
| /** | ||
| * {@inheritDoc} | ||
| */ | ||
| @Override | ||
| public Mono<U> getResult(PollingContext<T> pollingContext, TypeReference<U> resultType) { | ||
| if (pollingContext.getLatestResponse().getStatus() == LongRunningOperationStatus.FAILED) { | ||
| return Mono.error(new AzureException("Long running operation failed.")); | ||
| } else if (pollingContext.getLatestResponse().getStatus() == LongRunningOperationStatus.USER_CANCELLED) { | ||
| return Mono.error(new AzureException("Long running operation cancelled.")); | ||
| } | ||
| if (propertyName != null) { | ||
| // take the last poll response body from PollingContext, | ||
| // and de-serialize the <propertyName> property as final result | ||
| BinaryData latestResponseBody | ||
| = BinaryData.fromString(pollingContext.getData(PollingUtils.POLL_RESPONSE_BODY)); | ||
| return PollingUtils.deserializeResponse(latestResponseBody, serializer, PollingUtils.POST_POLL_RESULT_TYPE_REFERENCE) | ||
| .flatMap(value -> { | ||
| if (value.get(propertyName) != null) { | ||
| return BinaryData.fromObjectAsync(value.get(propertyName)) | ||
| .flatMap(result -> PollingUtils.deserializeResponse(result, serializer, resultType)); | ||
| } else { | ||
| return Mono.error(new AzureException("Cannot get final result")); | ||
| } | ||
| }) | ||
| .switchIfEmpty(Mono.error(new AzureException("Cannot get final result"))); | ||
| } else { | ||
| return super.getResult(pollingContext, resultType); | ||
| } | ||
| } | ||
| } |
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