| Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||
| ServerUpdateCallback |
|
| 2.0;2 |
| 1 | /* | |
| 2 | * #%L | |
| 3 | * ServerUpdateCallback.java - mongodb-async-driver - Allanbank Consulting, Inc. | |
| 4 | * %% | |
| 5 | * Copyright (C) 2011 - 2014 Allanbank Consulting, Inc. | |
| 6 | * %% | |
| 7 | * Licensed under the Apache License, Version 2.0 (the "License"); | |
| 8 | * you may not use this file except in compliance with the License. | |
| 9 | * You may obtain a copy of the License at | |
| 10 | * | |
| 11 | * http://www.apache.org/licenses/LICENSE-2.0 | |
| 12 | * | |
| 13 | * Unless required by applicable law or agreed to in writing, software | |
| 14 | * distributed under the License is distributed on an "AS IS" BASIS, | |
| 15 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
| 16 | * See the License for the specific language governing permissions and | |
| 17 | * limitations under the License. | |
| 18 | * #L% | |
| 19 | */ | |
| 20 | package com.allanbank.mongodb.client.state; | |
| 21 | ||
| 22 | import java.util.List; | |
| 23 | ||
| 24 | import com.allanbank.mongodb.bson.Document; | |
| 25 | import com.allanbank.mongodb.client.callback.FutureReplyCallback; | |
| 26 | import com.allanbank.mongodb.client.message.Reply; | |
| 27 | ||
| 28 | /** | |
| 29 | * ServerUpdateCallback provides a special callback update the server with the | |
| 30 | * first document in the reply. This is useful with {@code ismaster} or | |
| 31 | * {@code replSetGetStatus} commands. | |
| 32 | * | |
| 33 | * @api.no This class is <b>NOT</b> part of the drivers API. This class may be | |
| 34 | * mutated in incompatible ways between any two releases of the driver. | |
| 35 | * @copyright 2012-2014, Allanbank Consulting, Inc., All Rights Reserved | |
| 36 | */ | |
| 37 | 205 | public class ServerUpdateCallback extends FutureReplyCallback { |
| 38 | ||
| 39 | /** The server to update the seconds behind for. */ | |
| 40 | private final Server myServer; | |
| 41 | ||
| 42 | /** | |
| 43 | * Creates a new ServerUpdateCallback. | |
| 44 | * | |
| 45 | * @param server | |
| 46 | * The server we are tracking the latency for. | |
| 47 | */ | |
| 48 | public ServerUpdateCallback(final Server server) { | |
| 49 | 236 | super(); |
| 50 | 236 | myServer = server; |
| 51 | 236 | } |
| 52 | ||
| 53 | /** | |
| 54 | * {@inheritDoc} | |
| 55 | * <p> | |
| 56 | * Overridden to update the server's latency based on the round trip reply | |
| 57 | * time. | |
| 58 | * </p> | |
| 59 | */ | |
| 60 | @Override | |
| 61 | public void callback(final Reply result) { | |
| 62 | 208 | if (myServer != null) { |
| 63 | 208 | update(result); |
| 64 | } | |
| 65 | ||
| 66 | 208 | super.callback(result); |
| 67 | 208 | } |
| 68 | ||
| 69 | /** | |
| 70 | * {@inheritDoc} | |
| 71 | * <p> | |
| 72 | * Overridden to mark the server as {@link Integer#MAX_VALUE} seconds behind | |
| 73 | * the primary. | |
| 74 | * </p> | |
| 75 | */ | |
| 76 | @Override | |
| 77 | public void exception(final Throwable error) { | |
| 78 | 24 | if (myServer != null) { |
| 79 | 24 | myServer.requestFailed(); |
| 80 | } | |
| 81 | ||
| 82 | 24 | super.exception(error); |
| 83 | 24 | } |
| 84 | ||
| 85 | /** | |
| 86 | * Updates the server with the first document from the reply. | |
| 87 | * | |
| 88 | * @param reply | |
| 89 | * The reply. | |
| 90 | */ | |
| 91 | private void update(final Reply reply) { | |
| 92 | 208 | if (reply != null) { |
| 93 | 208 | final List<Document> replyDocs = reply.getResults(); |
| 94 | 208 | if (replyDocs.size() >= 1) { |
| 95 | 194 | final Document doc = replyDocs.get(0); |
| 96 | ||
| 97 | 194 | myServer.update(doc); |
| 98 | } | |
| 99 | } | |
| 100 | 208 | } |
| 101 | } |