Madan Jampani | 12390c1 | 2014-11-12 00:35:56 -0800 | [diff] [blame^] | 1 | package org.onlab.onos.store.service; |
| 2 | |
| 3 | import java.util.Collections; |
| 4 | import java.util.List; |
| 5 | |
| 6 | import com.google.common.collect.Lists; |
| 7 | |
| 8 | /** |
| 9 | * Collection of write requests to be submitted as one batch. |
| 10 | */ |
| 11 | public class BatchWriteRequest { |
| 12 | |
| 13 | private final List<WriteRequest> writeRequests; |
| 14 | |
| 15 | /** |
| 16 | * Creates a new BatchWriteRequest object from the specified list of write requests. |
| 17 | * @param writeRequests write requests. |
| 18 | * @return BatchWriteRequest object. |
| 19 | */ |
| 20 | public static BatchWriteRequest create(List<WriteRequest> writeRequests) { |
| 21 | return new BatchWriteRequest(writeRequests); |
| 22 | } |
| 23 | |
| 24 | private BatchWriteRequest(List<WriteRequest> writeRequests) { |
| 25 | this.writeRequests = Collections.unmodifiableList(writeRequests); |
| 26 | } |
| 27 | |
| 28 | /** |
| 29 | * Returns the requests in this batch as a list. |
| 30 | * @return list of write requests |
| 31 | */ |
| 32 | public List<WriteRequest> getAsList() { |
| 33 | return writeRequests; |
| 34 | } |
| 35 | |
| 36 | /** |
| 37 | * Returns the number of requests in this batch. |
| 38 | * @return size of request batch. |
| 39 | */ |
| 40 | public int batchSize() { |
| 41 | return writeRequests.size(); |
| 42 | } |
| 43 | |
| 44 | /** |
| 45 | * Builder for BatchWriteRequest. |
| 46 | */ |
| 47 | public static class Builder { |
| 48 | |
| 49 | private final List<WriteRequest> writeRequests = Lists.newLinkedList(); |
| 50 | |
| 51 | public Builder put(String tableName, String key, byte[] value) { |
| 52 | writeRequests.add(WriteRequest.put(tableName, key, value)); |
| 53 | return this; |
| 54 | } |
| 55 | |
| 56 | public Builder putIfAbsent(String tableName, String key, byte[] value) { |
| 57 | writeRequests.add(WriteRequest.putIfAbsent(tableName, key, value)); |
| 58 | return this; |
| 59 | } |
| 60 | |
| 61 | public Builder putIfValueMatches(String tableName, String key, byte[] oldValue, byte[] newValue) { |
| 62 | writeRequests.add(WriteRequest.putIfValueMatches(tableName, key, oldValue, newValue)); |
| 63 | return this; |
| 64 | } |
| 65 | |
| 66 | public Builder putIfVersionMatches(String tableName, String key, byte[] value, long version) { |
| 67 | writeRequests.add(WriteRequest.putIfVersionMatches(tableName, key, value, version)); |
| 68 | return this; |
| 69 | } |
| 70 | |
| 71 | public Builder remove(String tableName, String key) { |
| 72 | writeRequests.add(WriteRequest.remove(tableName, key)); |
| 73 | return this; |
| 74 | } |
| 75 | |
| 76 | public Builder removeIfVersionMatches(String tableName, String key, long version) { |
| 77 | writeRequests.add(WriteRequest.removeIfVersionMatches(tableName, key, version)); |
| 78 | return this; |
| 79 | } |
| 80 | |
| 81 | public Builder removeIfValueMatches(String tableName, String key, byte[] value) { |
| 82 | writeRequests.add(WriteRequest.removeIfValueMatches(tableName, key, value)); |
| 83 | return this; |
| 84 | } |
| 85 | |
| 86 | public BatchWriteRequest build() { |
| 87 | return new BatchWriteRequest(writeRequests); |
| 88 | } |
| 89 | } |
| 90 | } |