alshabib | ab98466 | 2014-12-04 18:56:18 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2014 Open Networking Laboratory |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
Brian O'Connor | abafb50 | 2014-12-02 22:26:20 -0800 | [diff] [blame] | 16 | package org.onosproject.store.service; |
Madan Jampani | 12390c1 | 2014-11-12 00:35:56 -0800 | [diff] [blame] | 17 | |
Madan Jampani | 12390c1 | 2014-11-12 00:35:56 -0800 | [diff] [blame] | 18 | import java.util.List; |
| 19 | |
Madan Jampani | f5d263b | 2014-11-13 10:04:40 -0800 | [diff] [blame] | 20 | import com.google.common.base.MoreObjects; |
Madan Jampani | 7aad233 | 2014-11-12 01:57:07 -0800 | [diff] [blame] | 21 | import com.google.common.collect.ImmutableList; |
Madan Jampani | 12390c1 | 2014-11-12 00:35:56 -0800 | [diff] [blame] | 22 | import com.google.common.collect.Lists; |
| 23 | |
| 24 | /** |
| 25 | * Collection of read requests to be submitted as one batch. |
| 26 | */ |
Madan Jampani | 23af4fc | 2014-11-12 00:54:18 -0800 | [diff] [blame] | 27 | public final class BatchReadRequest { |
Madan Jampani | 12390c1 | 2014-11-12 00:35:56 -0800 | [diff] [blame] | 28 | |
Madan Jampani | 23af4fc | 2014-11-12 00:54:18 -0800 | [diff] [blame] | 29 | private final List<ReadRequest> readRequests; |
Madan Jampani | 12390c1 | 2014-11-12 00:35:56 -0800 | [diff] [blame] | 30 | |
Madan Jampani | 23af4fc | 2014-11-12 00:54:18 -0800 | [diff] [blame] | 31 | /** |
| 32 | * Creates a new BatchReadRequest object from the specified list of read requests. |
| 33 | * @param readRequests read requests. |
| 34 | * @return BatchReadRequest object. |
| 35 | */ |
| 36 | public static BatchReadRequest create(List<ReadRequest> readRequests) { |
| 37 | return new BatchReadRequest(readRequests); |
| 38 | } |
Madan Jampani | 12390c1 | 2014-11-12 00:35:56 -0800 | [diff] [blame] | 39 | |
Madan Jampani | 23af4fc | 2014-11-12 00:54:18 -0800 | [diff] [blame] | 40 | private BatchReadRequest(List<ReadRequest> readRequests) { |
Madan Jampani | 7aad233 | 2014-11-12 01:57:07 -0800 | [diff] [blame] | 41 | this.readRequests = ImmutableList.copyOf(readRequests); |
Madan Jampani | 23af4fc | 2014-11-12 00:54:18 -0800 | [diff] [blame] | 42 | } |
Madan Jampani | 12390c1 | 2014-11-12 00:35:56 -0800 | [diff] [blame] | 43 | |
Madan Jampani | 23af4fc | 2014-11-12 00:54:18 -0800 | [diff] [blame] | 44 | /** |
| 45 | * Returns the number of requests in this batch. |
| 46 | * @return size of request batch. |
| 47 | */ |
| 48 | public int batchSize() { |
| 49 | return readRequests.size(); |
| 50 | } |
Madan Jampani | 12390c1 | 2014-11-12 00:35:56 -0800 | [diff] [blame] | 51 | |
Madan Jampani | 23af4fc | 2014-11-12 00:54:18 -0800 | [diff] [blame] | 52 | /** |
| 53 | * Returns the requests in this batch as a list. |
| 54 | * @return list of read requests |
| 55 | */ |
| 56 | public List<ReadRequest> getAsList() { |
| 57 | return readRequests; |
| 58 | } |
Madan Jampani | 12390c1 | 2014-11-12 00:35:56 -0800 | [diff] [blame] | 59 | |
Madan Jampani | f5d263b | 2014-11-13 10:04:40 -0800 | [diff] [blame] | 60 | @Override |
| 61 | public String toString() { |
| 62 | return MoreObjects.toStringHelper(getClass()) |
| 63 | .add("readRequests", readRequests) |
| 64 | .toString(); |
| 65 | } |
| 66 | |
Madan Jampani | 23af4fc | 2014-11-12 00:54:18 -0800 | [diff] [blame] | 67 | /** |
| 68 | * Builder for BatchReadRequest. |
| 69 | */ |
| 70 | public static class Builder { |
Madan Jampani | 12390c1 | 2014-11-12 00:35:56 -0800 | [diff] [blame] | 71 | |
Madan Jampani | 23af4fc | 2014-11-12 00:54:18 -0800 | [diff] [blame] | 72 | private final List<ReadRequest> readRequests = Lists.newLinkedList(); |
Madan Jampani | 12390c1 | 2014-11-12 00:35:56 -0800 | [diff] [blame] | 73 | |
Madan Jampani | 23af4fc | 2014-11-12 00:54:18 -0800 | [diff] [blame] | 74 | /** |
| 75 | * Append a get request. |
| 76 | * @param tableName table name |
| 77 | * @param key key to fetch. |
| 78 | * @return this Builder |
| 79 | */ |
| 80 | public Builder get(String tableName, String key) { |
| 81 | readRequests.add(new ReadRequest(tableName, key)); |
| 82 | return this; |
| 83 | } |
Madan Jampani | 12390c1 | 2014-11-12 00:35:56 -0800 | [diff] [blame] | 84 | |
Madan Jampani | 23af4fc | 2014-11-12 00:54:18 -0800 | [diff] [blame] | 85 | /** |
| 86 | * Builds a BatchReadRequest. |
| 87 | * @return BatchReadRequest |
| 88 | */ |
| 89 | public BatchReadRequest build() { |
| 90 | return new BatchReadRequest(readRequests); |
| 91 | } |
| 92 | } |
| 93 | } |