BUG-5280: add FrontendMetadata

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

diff --git a/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/FrontendHistoryMetadataBuilder.java b/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/FrontendHistoryMetadataBuilder.java
new file mode 100644 (file)
index 0000000..d8d7bdd
--- /dev/null
+++ b/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/FrontendHistoryMetadataBuilder.java
@@ -0,0 +1,51 @@
+/*
+ * Copyright (c) 2016 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;
+
+import com.google.common.base.Preconditions;
+import org.opendaylight.controller.cluster.access.concepts.ClientIdentifier;
+import org.opendaylight.controller.cluster.access.concepts.LocalHistoryIdentifier;
+import org.opendaylight.controller.cluster.access.concepts.TransactionIdentifier;
+import org.opendaylight.controller.cluster.datastore.persisted.FrontendHistoryMetadata;
+import org.opendaylight.yangtools.concepts.Builder;
+import org.opendaylight.yangtools.concepts.Identifiable;
+
+final class FrontendHistoryMetadataBuilder implements Builder<FrontendHistoryMetadata>, Identifiable<LocalHistoryIdentifier> {
+    private final LocalHistoryIdentifier identifier;
+
+    private long nextTransaction;
+    private boolean closed;
+
+    FrontendHistoryMetadataBuilder(final LocalHistoryIdentifier identifier) {
+        this.identifier = Preconditions.checkNotNull(identifier);
+    }
+
+    FrontendHistoryMetadataBuilder(final ClientIdentifier clientId, final FrontendHistoryMetadata meta) {
+        identifier = new LocalHistoryIdentifier(clientId, meta.getHistoryId(), meta.getCookie());
+        nextTransaction = meta.getNextTransaction();
+        closed = meta.isClosed();
+    }
+
+    @Override
+    public LocalHistoryIdentifier getIdentifier() {
+        return identifier;
+    }
+
+    @Override
+    public FrontendHistoryMetadata build() {
+        return new FrontendHistoryMetadata(identifier.getHistoryId(), identifier.getCookie(), nextTransaction, closed);
+    }
+
+    void onHistoryClosed() {
+        closed = true;
+    }
+
+    void onTransactionCommitted(final TransactionIdentifier txId) {
+        nextTransaction = txId.getTransactionId() + 1;
+    }
+}