Brian O'Connor | abafb50 | 2014-12-02 22:26:20 -0800 | [diff] [blame] | 1 | package org.onosproject.store.service; |
Madan Jampani | 12390c1 | 2014-11-12 00:35:56 -0800 | [diff] [blame] | 2 | |
Madan Jampani | 12390c1 | 2014-11-12 00:35:56 -0800 | [diff] [blame] | 3 | import java.util.List; |
| 4 | |
Madan Jampani | f5d263b | 2014-11-13 10:04:40 -0800 | [diff] [blame] | 5 | import com.google.common.base.MoreObjects; |
Madan Jampani | 7aad233 | 2014-11-12 01:57:07 -0800 | [diff] [blame] | 6 | import com.google.common.collect.ImmutableList; |
Madan Jampani | 12390c1 | 2014-11-12 00:35:56 -0800 | [diff] [blame] | 7 | import com.google.common.collect.Lists; |
| 8 | |
| 9 | /** |
| 10 | * Collection of read requests to be submitted as one batch. |
| 11 | */ |
Madan Jampani | 23af4fc | 2014-11-12 00:54:18 -0800 | [diff] [blame] | 12 | public final class BatchReadRequest { |
Madan Jampani | 12390c1 | 2014-11-12 00:35:56 -0800 | [diff] [blame] | 13 | |
Madan Jampani | 23af4fc | 2014-11-12 00:54:18 -0800 | [diff] [blame] | 14 | private final List<ReadRequest> readRequests; |
Madan Jampani | 12390c1 | 2014-11-12 00:35:56 -0800 | [diff] [blame] | 15 | |
Madan Jampani | 23af4fc | 2014-11-12 00:54:18 -0800 | [diff] [blame] | 16 | /** |
| 17 | * Creates a new BatchReadRequest object from the specified list of read requests. |
| 18 | * @param readRequests read requests. |
| 19 | * @return BatchReadRequest object. |
| 20 | */ |
| 21 | public static BatchReadRequest create(List<ReadRequest> readRequests) { |
| 22 | return new BatchReadRequest(readRequests); |
| 23 | } |
Madan Jampani | 12390c1 | 2014-11-12 00:35:56 -0800 | [diff] [blame] | 24 | |
Madan Jampani | 23af4fc | 2014-11-12 00:54:18 -0800 | [diff] [blame] | 25 | private BatchReadRequest(List<ReadRequest> readRequests) { |
Madan Jampani | 7aad233 | 2014-11-12 01:57:07 -0800 | [diff] [blame] | 26 | this.readRequests = ImmutableList.copyOf(readRequests); |
Madan Jampani | 23af4fc | 2014-11-12 00:54:18 -0800 | [diff] [blame] | 27 | } |
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 | /** |
| 30 | * Returns the number of requests in this batch. |
| 31 | * @return size of request batch. |
| 32 | */ |
| 33 | public int batchSize() { |
| 34 | return readRequests.size(); |
| 35 | } |
Madan Jampani | 12390c1 | 2014-11-12 00:35:56 -0800 | [diff] [blame] | 36 | |
Madan Jampani | 23af4fc | 2014-11-12 00:54:18 -0800 | [diff] [blame] | 37 | /** |
| 38 | * Returns the requests in this batch as a list. |
| 39 | * @return list of read requests |
| 40 | */ |
| 41 | public List<ReadRequest> getAsList() { |
| 42 | return readRequests; |
| 43 | } |
Madan Jampani | 12390c1 | 2014-11-12 00:35:56 -0800 | [diff] [blame] | 44 | |
Madan Jampani | f5d263b | 2014-11-13 10:04:40 -0800 | [diff] [blame] | 45 | @Override |
| 46 | public String toString() { |
| 47 | return MoreObjects.toStringHelper(getClass()) |
| 48 | .add("readRequests", readRequests) |
| 49 | .toString(); |
| 50 | } |
| 51 | |
Madan Jampani | 23af4fc | 2014-11-12 00:54:18 -0800 | [diff] [blame] | 52 | /** |
| 53 | * Builder for BatchReadRequest. |
| 54 | */ |
| 55 | public static class Builder { |
Madan Jampani | 12390c1 | 2014-11-12 00:35:56 -0800 | [diff] [blame] | 56 | |
Madan Jampani | 23af4fc | 2014-11-12 00:54:18 -0800 | [diff] [blame] | 57 | private final List<ReadRequest> readRequests = Lists.newLinkedList(); |
Madan Jampani | 12390c1 | 2014-11-12 00:35:56 -0800 | [diff] [blame] | 58 | |
Madan Jampani | 23af4fc | 2014-11-12 00:54:18 -0800 | [diff] [blame] | 59 | /** |
| 60 | * Append a get request. |
| 61 | * @param tableName table name |
| 62 | * @param key key to fetch. |
| 63 | * @return this Builder |
| 64 | */ |
| 65 | public Builder get(String tableName, String key) { |
| 66 | readRequests.add(new ReadRequest(tableName, key)); |
| 67 | return this; |
| 68 | } |
Madan Jampani | 12390c1 | 2014-11-12 00:35:56 -0800 | [diff] [blame] | 69 | |
Madan Jampani | 23af4fc | 2014-11-12 00:54:18 -0800 | [diff] [blame] | 70 | /** |
| 71 | * Builds a BatchReadRequest. |
| 72 | * @return BatchReadRequest |
| 73 | */ |
| 74 | public BatchReadRequest build() { |
| 75 | return new BatchReadRequest(readRequests); |
| 76 | } |
| 77 | } |
| 78 | } |