Yuta HIGUCHI | 3cc4d9b | 2014-11-29 18:17:17 -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 | */ |
| 16 | package org.onlab.onos.store.hz; |
| 17 | |
| 18 | import static com.google.common.base.Preconditions.checkNotNull; |
| 19 | |
| 20 | import java.util.ArrayList; |
| 21 | import java.util.Collection; |
| 22 | import java.util.HashSet; |
| 23 | import java.util.Set; |
| 24 | import java.util.concurrent.TimeUnit; |
| 25 | |
| 26 | import org.onlab.onos.store.serializers.StoreSerializer; |
| 27 | |
| 28 | import com.hazelcast.core.TransactionalMap; |
| 29 | import com.hazelcast.query.Predicate; |
| 30 | |
| 31 | // TODO: implement Predicate, etc. if we need them. |
| 32 | /** |
| 33 | * Wrapper around TransactionalMap<byte[], byte[]> which serializes/deserializes |
| 34 | * key and value using StoreSerializer. |
| 35 | * |
| 36 | * @param <K> key type |
| 37 | * @param <V> value type |
| 38 | */ |
| 39 | public class STxMap<K, V> implements TransactionalMap<K, V> { |
| 40 | |
| 41 | private final TransactionalMap<byte[], byte[]> m; |
| 42 | private final StoreSerializer serializer; |
| 43 | |
| 44 | /** |
| 45 | * Creates a STxMap instance. |
| 46 | * |
| 47 | * @param baseMap base IMap to use |
| 48 | * @param serializer serializer to use for both key and value |
| 49 | */ |
| 50 | public STxMap(TransactionalMap<byte[], byte[]> baseMap, StoreSerializer serializer) { |
| 51 | this.m = checkNotNull(baseMap); |
| 52 | this.serializer = checkNotNull(serializer); |
| 53 | } |
| 54 | |
| 55 | @Override |
| 56 | public int size() { |
| 57 | return m.size(); |
| 58 | } |
| 59 | |
| 60 | @Override |
| 61 | public boolean isEmpty() { |
| 62 | return m.isEmpty(); |
| 63 | } |
| 64 | |
| 65 | @Deprecated |
| 66 | @Override |
| 67 | public Object getId() { |
| 68 | return m.getId(); |
| 69 | } |
| 70 | |
| 71 | @Override |
| 72 | public String getPartitionKey() { |
| 73 | return m.getPartitionKey(); |
| 74 | } |
| 75 | |
| 76 | @Override |
| 77 | public String getName() { |
| 78 | return m.getName(); |
| 79 | } |
| 80 | |
| 81 | @Override |
| 82 | public String getServiceName() { |
| 83 | return m.getServiceName(); |
| 84 | } |
| 85 | |
| 86 | @Override |
| 87 | public void destroy() { |
| 88 | m.destroy(); |
| 89 | } |
| 90 | |
| 91 | @Override |
| 92 | public boolean containsKey(Object key) { |
| 93 | return m.containsKey(serializeKey(key)); |
| 94 | } |
| 95 | |
| 96 | @Override |
| 97 | public V get(Object key) { |
| 98 | return deserializeVal(m.get(serializeKey(key))); |
| 99 | } |
| 100 | |
| 101 | @Override |
| 102 | public V getForUpdate(Object key) { |
| 103 | // TODO Auto-generated method stub |
| 104 | return deserializeVal(m.getForUpdate(serializeKey(key))); |
| 105 | } |
| 106 | |
| 107 | @Override |
| 108 | public V put(K key, V value) { |
| 109 | return deserializeVal(m.put(serializeKey(key), serializeVal(value))); |
| 110 | } |
| 111 | |
| 112 | @Override |
| 113 | public V remove(Object key) { |
| 114 | return deserializeVal(m.remove(serializeKey(key))); |
| 115 | } |
| 116 | |
| 117 | @Override |
| 118 | public boolean remove(Object key, Object value) { |
| 119 | return m.remove(serializeKey(key), serializeVal(value)); |
| 120 | } |
| 121 | |
| 122 | @Override |
| 123 | public void delete(Object key) { |
| 124 | m.delete(serializeKey(key)); |
| 125 | } |
| 126 | |
| 127 | @Override |
| 128 | public V put(K key, V value, long ttl, TimeUnit timeunit) { |
| 129 | return deserializeVal(m.put(serializeKey(key), serializeVal(value), ttl, timeunit)); |
| 130 | } |
| 131 | |
| 132 | @Override |
| 133 | public V putIfAbsent(K key, V value) { |
| 134 | return deserializeVal(m.putIfAbsent(serializeKey(key), serializeVal(value))); |
| 135 | } |
| 136 | |
| 137 | @Override |
| 138 | public boolean replace(K key, V oldValue, V newValue) { |
| 139 | return m.replace(serializeKey(key), serializeVal(oldValue), serializeVal(newValue)); |
| 140 | } |
| 141 | |
| 142 | @Override |
| 143 | public V replace(K key, V value) { |
| 144 | return deserializeVal(m.replace(serializeKey(key), serializeVal(value))); |
| 145 | } |
| 146 | |
| 147 | @Override |
| 148 | public void set(K key, V value) { |
| 149 | m.set(serializeKey(key), serializeVal(value)); |
| 150 | } |
| 151 | |
| 152 | |
| 153 | @Override |
| 154 | public Set<K> keySet() { |
| 155 | return deserializeKeySet(m.keySet()); |
| 156 | } |
| 157 | |
| 158 | @Override |
| 159 | public Collection<V> values() { |
| 160 | return deserializeVals(m.values()); |
| 161 | } |
| 162 | |
| 163 | @Deprecated // marking method not implemented |
| 164 | @SuppressWarnings("rawtypes") |
| 165 | @Override |
| 166 | public Set<K> keySet(Predicate predicate) { |
| 167 | throw new UnsupportedOperationException(); |
| 168 | } |
| 169 | |
| 170 | @Deprecated // marking method not implemented |
| 171 | @SuppressWarnings("rawtypes") |
| 172 | @Override |
| 173 | public Collection<V> values(Predicate predicate) { |
| 174 | throw new UnsupportedOperationException(); |
| 175 | } |
| 176 | |
| 177 | private byte[] serializeKey(Object key) { |
| 178 | return serializer.encode(key); |
| 179 | } |
| 180 | |
| 181 | private K deserializeKey(byte[] key) { |
| 182 | return serializer.decode(key); |
| 183 | } |
| 184 | |
| 185 | private byte[] serializeVal(Object val) { |
| 186 | return serializer.encode(val); |
| 187 | } |
| 188 | |
| 189 | private V deserializeVal(byte[] val) { |
| 190 | if (val == null) { |
| 191 | return null; |
| 192 | } |
| 193 | return serializer.decode(val.clone()); |
| 194 | } |
| 195 | |
| 196 | private Set<K> deserializeKeySet(Set<byte[]> keys) { |
| 197 | Set<K> dsk = new HashSet<>(keys.size()); |
| 198 | for (byte[] key : keys) { |
| 199 | dsk.add(deserializeKey(key)); |
| 200 | } |
| 201 | return dsk; |
| 202 | } |
| 203 | |
| 204 | private Collection<V> deserializeVals(Collection<byte[]> vals) { |
| 205 | Collection<V> dsl = new ArrayList<>(vals.size()); |
| 206 | for (byte[] val : vals) { |
| 207 | dsl.add(deserializeVal(val)); |
| 208 | } |
| 209 | return dsl; |
| 210 | } |
| 211 | } |