+/*
+ * 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.persisted;
+
+import com.google.common.base.Throwables;
+import com.google.common.io.ByteArrayDataOutput;
+import com.google.common.io.ByteStreams;
+import java.io.DataInput;
+import java.io.IOException;
+import org.opendaylight.controller.cluster.access.concepts.LocalHistoryIdentifier;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * Payload persisted when a local history is completely purged, i.e. the frontend has removed it from its tracking.
+ * It contains a {@link LocalHistoryIdentifier}.
+ *
+ * @author Robert Varga
+ */
+public final class PurgeLocalHistoryPayload extends AbstractIdentifiablePayload<LocalHistoryIdentifier> {
+ private static final class Proxy extends AbstractProxy<LocalHistoryIdentifier> {
+ private static final long serialVersionUID = 1L;
+
+ // checkstyle flags the public modifier as redundant which really doesn't make sense since it clearly isn't
+ // redundant. It is explicitly needed for Java serialization to be able to create instances via reflection.
+ @SuppressWarnings("checkstyle:RedundantModifier")
+ public Proxy() {
+ // For Externalizable
+ }
+
+ Proxy(final byte[] serialized) {
+ super(serialized);
+ }
+
+ @Override
+ protected LocalHistoryIdentifier readIdentifier(final DataInput in) throws IOException {
+ return LocalHistoryIdentifier.readFrom(in);
+ }
+
+ @Override
+ protected PurgeLocalHistoryPayload createObject(final LocalHistoryIdentifier identifier,
+ final byte[] serialized) {
+ return new PurgeLocalHistoryPayload(identifier, serialized);
+ }
+ }
+
+ private static final Logger LOG = LoggerFactory.getLogger(PurgeLocalHistoryPayload.class);
+ private static final long serialVersionUID = 1L;
+
+ PurgeLocalHistoryPayload(final LocalHistoryIdentifier historyId, final byte[] serialized) {
+ super(historyId, serialized);
+ }
+
+ public static PurgeLocalHistoryPayload create(final LocalHistoryIdentifier historyId) {
+ final ByteArrayDataOutput out = ByteStreams.newDataOutput();
+ try {
+ historyId.writeTo(out);
+ } catch (IOException e) {
+ // This should never happen
+ LOG.error("Failed to serialize {}", historyId, e);
+ throw Throwables.propagate(e);
+ }
+ return new PurgeLocalHistoryPayload(historyId, out.toByteArray());
+ }
+
+ @Override
+ protected Proxy externalizableProxy(final byte[] serialized) {
+ return new Proxy(serialized);
+ }
+}
Code Review / controller.git / commitdiff