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Merge pull request #15421 from cdapio/operation-notification-subscriber
Add Operation notification consumer
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cdap-app-fabric/src/main/java/io/cdap/cdap/internal/operation/InMemoryOperationRuntime.java
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| /* | ||
| * Copyright © 2023 Cask Data, Inc. | ||
| * | ||
| * 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 io.cdap.cdap.internal.operation; | ||
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| import com.google.inject.Inject; | ||
| import io.cdap.cdap.common.conf.CConfiguration; | ||
| import io.cdap.cdap.proto.id.OperationRunId; | ||
| import io.cdap.cdap.proto.operation.OperationError; | ||
| import io.cdap.cdap.spi.data.transaction.TransactionRunner; | ||
| import java.util.Collections; | ||
| import java.util.concurrent.ConcurrentHashMap; | ||
| import javax.annotation.Nullable; | ||
| import org.apache.twill.common.Threads; | ||
| import org.slf4j.Logger; | ||
| import org.slf4j.LoggerFactory; | ||
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| /** | ||
| * {@link OperationRuntime} implementation when operations are running inside same service. | ||
| */ | ||
| public class InMemoryOperationRuntime implements OperationRuntime { | ||
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| private final CConfiguration cConf; | ||
| private final ConcurrentHashMap<OperationRunId, OperationController> controllers; | ||
| private final OperationRunner runner; | ||
| private final OperationStatePublisher statePublisher; | ||
| private final TransactionRunner transactionRunner; | ||
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| private static final Logger LOG = LoggerFactory.getLogger(InMemoryOperationRuntime.class); | ||
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| @Inject | ||
| InMemoryOperationRuntime(CConfiguration cConf, OperationRunner runner, | ||
| OperationStatePublisher statePublisher, | ||
| TransactionRunner transactionRunner) { | ||
| this.cConf = cConf; | ||
| this.runner = runner; | ||
| this.statePublisher = statePublisher; | ||
| this.transactionRunner = transactionRunner; | ||
| this.controllers = new ConcurrentHashMap<>(); | ||
| } | ||
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| /** | ||
| * Runs an operation given the detail. | ||
| * | ||
| * @param runDetail detail of the run | ||
| * @return {@link OperationController} for the run | ||
| */ | ||
| public OperationController run(OperationRunDetail runDetail) { | ||
| return controllers.computeIfAbsent( | ||
| runDetail.getRunId(), | ||
| runId -> { | ||
| try { | ||
| OperationController controller = runner.run(runDetail); | ||
| LOG.debug("Added controller for {}", runId); | ||
| controller.complete().addListener(() -> remove(runId), Threads.SAME_THREAD_EXECUTOR); | ||
| return controller; | ||
| } catch (IllegalStateException e) { | ||
| statePublisher.publishFailed(runDetail.getRunId(), | ||
| new OperationError(e.getMessage(), Collections.emptyList()) | ||
| ); | ||
| } | ||
| return null; | ||
| } | ||
| ); | ||
| } | ||
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| /** | ||
| * Get controller for a given {@link OperationRunId}. | ||
| */ | ||
| @Nullable | ||
| public OperationController getController(OperationRunDetail detail) { | ||
| return controllers.computeIfAbsent(detail.getRunId(), runId -> { | ||
| // TODO(samik) create controller from detail after 6.10 release | ||
| return null; | ||
| }); | ||
| } | ||
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| private void remove(OperationRunId runId) { | ||
| OperationController controller = controllers.remove(runId); | ||
| if (controller != null) { | ||
| LOG.debug("Controller removed for {}", runId); | ||
| } | ||
| } | ||
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| } |
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