Refactor change: Moved all distributed primitive implementation classes into onos-core-primitives bundle
Change-Id: Icd5dbd4133cb2f21bd403bcd598e6012813e6bfd
diff --git a/core/store/primitives/src/main/java/org/onosproject/store/primitives/impl/DefaultTransactionContext.java b/core/store/primitives/src/main/java/org/onosproject/store/primitives/impl/DefaultTransactionContext.java
new file mode 100644
index 0000000..c8abc04
--- /dev/null
+++ b/core/store/primitives/src/main/java/org/onosproject/store/primitives/impl/DefaultTransactionContext.java
@@ -0,0 +1,117 @@
+/*
+ * Copyright 2015 Open Networking Laboratory
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.onosproject.store.primitives.impl;
+
+import java.util.List;
+import java.util.Map;
+import java.util.function.Supplier;
+
+import static com.google.common.base.Preconditions.*;
+
+import org.onosproject.store.service.ConsistentMapBuilder;
+import org.onosproject.store.service.DatabaseUpdate;
+import org.onosproject.store.service.Serializer;
+import org.onosproject.store.service.Transaction;
+import org.onosproject.store.service.TransactionContext;
+import org.onosproject.store.service.TransactionalMap;
+
+import com.google.common.collect.Lists;
+import com.google.common.collect.Maps;
+import com.google.common.util.concurrent.Futures;
+
+/**
+ * Default TransactionContext implementation.
+ */
+public class DefaultTransactionContext implements TransactionContext {
+ private static final String TX_NOT_OPEN_ERROR = "Transaction Context is not open";
+
+ @SuppressWarnings("rawtypes")
+ private final Map<String, DefaultTransactionalMap> txMaps = Maps.newConcurrentMap();
+ private boolean isOpen = false;
+ private final Database database;
+ private final long transactionId;
+ private final Supplier<ConsistentMapBuilder> mapBuilderSupplier;
+
+ public DefaultTransactionContext(long transactionId,
+ Database database,
+ Supplier<ConsistentMapBuilder> mapBuilderSupplier) {
+ this.transactionId = transactionId;
+ this.database = checkNotNull(database);
+ this.mapBuilderSupplier = checkNotNull(mapBuilderSupplier);
+ }
+
+ @Override
+ public long transactionId() {
+ return transactionId;
+ }
+
+ @Override
+ public void begin() {
+ checkState(!isOpen, "Transaction Context is already open");
+ isOpen = true;
+ }
+
+ @Override
+ public boolean isOpen() {
+ return isOpen;
+ }
+
+ @Override
+ @SuppressWarnings("unchecked")
+ public <K, V> TransactionalMap<K, V> getTransactionalMap(String mapName,
+ Serializer serializer) {
+ checkState(isOpen, TX_NOT_OPEN_ERROR);
+ checkNotNull(mapName);
+ checkNotNull(serializer);
+ return txMaps.computeIfAbsent(mapName, name -> new DefaultTransactionalMap<>(
+ name,
+ mapBuilderSupplier.get().withName(name).withSerializer(serializer).build(),
+ this,
+ serializer));
+ }
+
+ @SuppressWarnings("unchecked")
+ @Override
+ public boolean commit() {
+ // TODO: rework commit implementation to be more intuitive
+ checkState(isOpen, TX_NOT_OPEN_ERROR);
+ CommitResponse response = null;
+ try {
+ List<DatabaseUpdate> updates = Lists.newLinkedList();
+ txMaps.values().forEach(m -> updates.addAll(m.prepareDatabaseUpdates()));
+ Transaction transaction = new DefaultTransaction(transactionId, updates);
+ response = Futures.getUnchecked(database.prepareAndCommit(transaction));
+ return response.success();
+ } catch (Exception e) {
+ abort();
+ return false;
+ } finally {
+ isOpen = false;
+ }
+ }
+
+ @Override
+ public void abort() {
+ if (isOpen) {
+ try {
+ txMaps.values().forEach(m -> m.rollback());
+ } finally {
+ isOpen = false;
+ }
+ }
+ }
+}