google-nomulus/java/google/registry/flows/async/AsyncFlowUtils.java
mcilwain aa2f283f7c Convert entire project to strict lexicographical import sort ordering
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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=127234970
2016-07-13 15:59:53 -04:00

63 lines
2.6 KiB
Java

// Copyright 2016 The Domain Registry Authors. All Rights Reserved.
//
// 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.
package google.registry.flows.async;
import static google.registry.request.Actions.getPathForAction;
import com.google.appengine.api.taskqueue.Queue;
import com.google.appengine.api.taskqueue.QueueFactory;
import com.google.appengine.api.taskqueue.RetryOptions;
import com.google.appengine.api.taskqueue.TaskHandle;
import com.google.appengine.api.taskqueue.TaskOptions;
import com.google.appengine.api.taskqueue.TaskOptions.Method;
import com.google.common.annotations.VisibleForTesting;
import com.google.common.collect.ImmutableMap;
import google.registry.config.RegistryEnvironment;
import google.registry.util.FormattingLogger;
import java.util.Map.Entry;
import org.joda.time.Duration;
/** Utility methods specific to async flows. */
public final class AsyncFlowUtils {
private static final FormattingLogger logger = FormattingLogger.getLoggerForCallerClass();
@VisibleForTesting
public static final String ASYNC_FLOW_QUEUE_NAME = "flows-async"; // See queue.xml.
private AsyncFlowUtils() {}
/** Enqueues a mapreduce action to perform an async flow operation. */
public static TaskHandle enqueueMapreduceAction(
Class<? extends Runnable> action,
ImmutableMap<String, String> params,
Duration executionDelay) {
Queue queue = QueueFactory.getQueue(ASYNC_FLOW_QUEUE_NAME);
String path = getPathForAction(action);
logger.infofmt("Enqueueing async mapreduce action with path %s and params %s", path, params);
// Aggressively back off if the task fails, to minimize flooding the logs.
RetryOptions retryOptions = RetryOptions.Builder.withMinBackoffSeconds(
RegistryEnvironment.get().config().getAsyncFlowFailureBackoff().getStandardSeconds());
TaskOptions options = TaskOptions.Builder
.withUrl(path)
.retryOptions(retryOptions)
.countdownMillis(executionDelay.getMillis())
.method(Method.GET);
for (Entry<String, String> entry : params.entrySet()) {
options.param(entry.getKey(), entry.getValue());
}
return queue.add(options);
}
}