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63 lines
2.6 KiB
Java
63 lines
2.6 KiB
Java
// Copyright 2016 The Domain Registry Authors. All Rights Reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package google.registry.flows.async;
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import static google.registry.request.Actions.getPathForAction;
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import com.google.appengine.api.taskqueue.Queue;
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import com.google.appengine.api.taskqueue.QueueFactory;
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import com.google.appengine.api.taskqueue.RetryOptions;
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import com.google.appengine.api.taskqueue.TaskHandle;
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import com.google.appengine.api.taskqueue.TaskOptions;
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import com.google.appengine.api.taskqueue.TaskOptions.Method;
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import com.google.common.annotations.VisibleForTesting;
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import com.google.common.collect.ImmutableMap;
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import google.registry.config.RegistryEnvironment;
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import google.registry.util.FormattingLogger;
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import java.util.Map.Entry;
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import org.joda.time.Duration;
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/** Utility methods specific to async flows. */
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public final class AsyncFlowUtils {
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private static final FormattingLogger logger = FormattingLogger.getLoggerForCallerClass();
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@VisibleForTesting
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public static final String ASYNC_FLOW_QUEUE_NAME = "flows-async"; // See queue.xml.
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private AsyncFlowUtils() {}
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/** Enqueues a mapreduce action to perform an async flow operation. */
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public static TaskHandle enqueueMapreduceAction(
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Class<? extends Runnable> action,
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ImmutableMap<String, String> params,
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Duration executionDelay) {
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Queue queue = QueueFactory.getQueue(ASYNC_FLOW_QUEUE_NAME);
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String path = getPathForAction(action);
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logger.infofmt("Enqueueing async mapreduce action with path %s and params %s", path, params);
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// Aggressively back off if the task fails, to minimize flooding the logs.
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RetryOptions retryOptions = RetryOptions.Builder.withMinBackoffSeconds(
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RegistryEnvironment.get().config().getAsyncFlowFailureBackoff().getStandardSeconds());
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TaskOptions options = TaskOptions.Builder
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.withUrl(path)
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.retryOptions(retryOptions)
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.countdownMillis(executionDelay.getMillis())
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.method(Method.GET);
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for (Entry<String, String> entry : params.entrySet()) {
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options.param(entry.getKey(), entry.getValue());
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}
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return queue.add(options);
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}
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}
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