Split out AbstractBuilder and rename it

[controller.git] / opendaylight / md-sal / sal-distributed-datastore / src / main / java / org / opendaylight / controller / cluster / datastore / shardmanager / AbstractShardManagerCreator.java

diff --git a/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/shardmanager/AbstractShardManagerCreator.java b/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/shardmanager/AbstractShardManagerCreator.java
new file mode 100644 (file)
index 0000000..a5804aa
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+++ b/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/shardmanager/AbstractShardManagerCreator.java
@@ -0,0 +1,114 @@
+/*
+ * Copyright (c) 2014 Cisco Systems, Inc. and others.  All rights reserved.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License v1.0 which accompanies this distribution,
+ * and is available at http://www.eclipse.org/legal/epl-v10.html
+ */
+package org.opendaylight.controller.cluster.datastore.shardmanager;
+
+import akka.actor.Props;
+import com.google.common.base.Preconditions;
+import java.util.concurrent.CountDownLatch;
+import org.opendaylight.controller.cluster.datastore.ClusterWrapper;
+import org.opendaylight.controller.cluster.datastore.DatastoreContextFactory;
+import org.opendaylight.controller.cluster.datastore.config.Configuration;
+import org.opendaylight.controller.cluster.datastore.messages.DatastoreSnapshot;
+import org.opendaylight.controller.cluster.datastore.utils.PrimaryShardInfoFutureCache;
+
+public abstract class AbstractShardManagerCreator<T extends AbstractShardManagerCreator<T>> {
+    private ClusterWrapper cluster;
+    private Configuration configuration;
+    private DatastoreContextFactory datastoreContextFactory;
+    private CountDownLatch waitTillReadyCountdownLatch;
+    private PrimaryShardInfoFutureCache primaryShardInfoCache;
+    private DatastoreSnapshot restoreFromSnapshot;
+    private volatile boolean sealed;
+
+    AbstractShardManagerCreator() {
+        // Prevent outside instantiation
+    }
+
+    @SuppressWarnings("unchecked")
+    private T self() {
+        return (T) this;
+    }
+
+    protected final void checkSealed() {
+        Preconditions.checkState(!sealed, "Builder is already sealed - further modifications are not allowed");
+    }
+
+    ClusterWrapper getCluster() {
+        return cluster;
+    }
+
+    public T cluster(ClusterWrapper cluster) {
+        checkSealed();
+        this.cluster = cluster;
+        return self();
+    }
+
+    Configuration getConfiguration() {
+        return configuration;
+    }
+
+    public T configuration(Configuration configuration) {
+        checkSealed();
+        this.configuration = configuration;
+        return self();
+    }
+
+    DatastoreContextFactory getDdatastoreContextFactory() {
+        return datastoreContextFactory;
+    }
+
+    public T datastoreContextFactory(DatastoreContextFactory datastoreContextFactory) {
+        checkSealed();
+        this.datastoreContextFactory = datastoreContextFactory;
+        return self();
+    }
+
+    CountDownLatch getWaitTillReadyCountdownLatch() {
+        return waitTillReadyCountdownLatch;
+    }
+
+    public T waitTillReadyCountdownLatch(CountDownLatch waitTillReadyCountdownLatch) {
+        checkSealed();
+        this.waitTillReadyCountdownLatch = waitTillReadyCountdownLatch;
+        return self();
+    }
+
+    PrimaryShardInfoFutureCache getPrimaryShardInfoCache() {
+        return primaryShardInfoCache;
+    }
+
+    public T primaryShardInfoCache(PrimaryShardInfoFutureCache primaryShardInfoCache) {
+        checkSealed();
+        this.primaryShardInfoCache = primaryShardInfoCache;
+        return self();
+    }
+
+    DatastoreSnapshot getRestoreFromSnapshot() {
+        return restoreFromSnapshot;
+    }
+
+    public T restoreFromSnapshot(DatastoreSnapshot restoreFromSnapshot) {
+        checkSealed();
+        this.restoreFromSnapshot = restoreFromSnapshot;
+        return self();
+    }
+
+    protected void verify() {
+        sealed = true;
+        Preconditions.checkNotNull(cluster, "cluster should not be null");
+        Preconditions.checkNotNull(configuration, "configuration should not be null");
+        Preconditions.checkNotNull(datastoreContextFactory, "datastoreContextFactory should not be null");
+        Preconditions.checkNotNull(waitTillReadyCountdownLatch, "waitTillReadyCountdownLatch should not be null");
+        Preconditions.checkNotNull(primaryShardInfoCache, "primaryShardInfoCache should not be null");
+    }
+
+    public Props props() {
+        verify();
+        return Props.create(ShardManager.class, this);
+    }
+}
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