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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.
71 lines
2.7 KiB
Java
71 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.poll;
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import static google.registry.model.eppoutput.Result.Code.SuccessWithAckMessage;
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import static google.registry.model.eppoutput.Result.Code.SuccessWithNoMessages;
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import static google.registry.model.ofy.ObjectifyService.ofy;
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import static google.registry.util.CollectionUtils.forceEmptyToNull;
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import com.googlecode.objectify.Key;
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import google.registry.flows.EppException;
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import google.registry.flows.EppException.ParameterValueSyntaxErrorException;
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import google.registry.model.eppoutput.EppOutput;
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import google.registry.model.poll.MessageQueueInfo;
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import google.registry.model.poll.PollMessage;
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import java.util.List;
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/**
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* An EPP flow for requesting poll messages.
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*
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* @error {@link PollRequestFlow.UnexpectedMessageIdException}
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*/
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public class PollRequestFlow extends PollFlow {
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@Override
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public final EppOutput run() throws EppException {
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if (command.getMessageId() != null) {
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throw new UnexpectedMessageIdException();
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}
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List<Key<PollMessage>> pollMessageKeys = getMessageQueueKeysInOrder();
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// Retrieve the oldest message from the queue that still exists -- since the query is eventually
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// consistent, it may return keys to some entities that no longer exist.
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for (Key<PollMessage> key : pollMessageKeys) {
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PollMessage pollMessage = ofy().load().key(key).now();
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if (pollMessage != null) {
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return createOutput(
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SuccessWithAckMessage,
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MessageQueueInfo.create(
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pollMessage.getEventTime(),
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pollMessage.getMsg(),
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pollMessageKeys.size(),
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PollMessage.EXTERNAL_KEY_CONVERTER.convert(key)),
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forceEmptyToNull(pollMessage.getResponseData()),
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forceEmptyToNull(pollMessage.getResponseExtensions()));
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}
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}
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return createOutput(SuccessWithNoMessages);
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}
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/** Unexpected message id. */
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static class UnexpectedMessageIdException extends ParameterValueSyntaxErrorException {
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public UnexpectedMessageIdException() {
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super("Unexpected message id");
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}
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}
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}
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