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c458c05801
The dark lord Gosling designed the Java package naming system so that ownership flows from the DNS system. Since we own the domain name registry.google, it seems only appropriate that we should use google.registry as our package name.
67 lines
2.7 KiB
Java
67 lines
2.7 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.mapreduce.MapreduceAction;
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import google.registry.util.FormattingLogger;
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import org.joda.time.Duration;
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import java.util.Map.Entry;
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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 MapreduceAction> 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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