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-rw-r--r--infra/translate-api/src/main/java/io/fd/honeycomb/v3po/translate/write/DataObjectUpdate.java114
1 files changed, 114 insertions, 0 deletions
diff --git a/infra/translate-api/src/main/java/io/fd/honeycomb/v3po/translate/write/DataObjectUpdate.java b/infra/translate-api/src/main/java/io/fd/honeycomb/v3po/translate/write/DataObjectUpdate.java
new file mode 100644
index 000000000..0d891ecba
--- /dev/null
+++ b/infra/translate-api/src/main/java/io/fd/honeycomb/v3po/translate/write/DataObjectUpdate.java
@@ -0,0 +1,114 @@
+/*
+ * Copyright (c) 2016 Cisco and/or its affiliates.
+ *
+ * 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 io.fd.honeycomb.v3po.translate.write;
+
+import static com.google.common.base.Preconditions.checkArgument;
+import static com.google.common.base.Preconditions.checkNotNull;
+
+import javax.annotation.Nonnull;
+import javax.annotation.Nullable;
+import org.opendaylight.yangtools.yang.binding.DataObject;
+import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
+
+/**
+ * Simple wrapper for BA id + data before and after state. Does not allow both before and after to be null.
+ */
+public class DataObjectUpdate {
+
+ @Nonnull
+ private final InstanceIdentifier<?> id;
+ @Nullable
+ private final DataObject dataBefore;
+ @Nullable
+ private final DataObject dataAfter;
+
+ private DataObjectUpdate(@Nonnull final InstanceIdentifier<?> id,
+ @Nullable final DataObject dataBefore,
+ @Nullable final DataObject dataAfter) {
+ this.id = checkNotNull(id);
+ this.dataAfter = dataAfter;
+ this.dataBefore = dataBefore;
+ }
+
+ public DataObject getDataBefore() {
+ return dataBefore;
+ }
+
+ public DataObject getDataAfter() {
+ return dataAfter;
+ }
+
+ public InstanceIdentifier<?> getId() {
+ return id;
+ }
+
+ public static DataObjectUpdate create(@Nonnull final InstanceIdentifier<?> id,
+ @Nullable final DataObject dataBefore,
+ @Nullable final DataObject dataAfter) {
+ checkArgument(!(dataBefore == null && dataAfter == null), "Both before and after data are null");
+ if (dataBefore != null) {
+ checkArgument(id.getTargetType().isAssignableFrom(dataBefore.getClass()));
+ }
+ if (dataAfter != null) {
+ checkArgument(id.getTargetType().isAssignableFrom(dataAfter.getClass()));
+ }
+
+ return dataAfter == null
+ ? new DataObjectDelete(id, dataBefore)
+ : new DataObjectUpdate(id, dataBefore, dataAfter);
+ }
+
+ @Override
+ public boolean equals(final Object o) {
+ if (this == o) {
+ return true;
+ }
+ if (o == null || getClass() != o.getClass()) {
+ return false;
+ }
+
+ final DataObjectUpdate that = (DataObjectUpdate) o;
+
+ return id.equals(that.id);
+
+ }
+
+ @Override
+ public int hashCode() {
+ return id.hashCode();
+ }
+
+ @Override
+ public String toString() {
+ return "DataObjectUpdate{" + "id=" + id
+ + ", dataBefore=" + dataBefore
+ + ", dataAfter=" + dataAfter
+ + '}';
+ }
+
+ public DataObjectUpdate reverse() {
+ return DataObjectUpdate.create(id, dataAfter, dataBefore);
+ }
+
+ public static class DataObjectDelete extends DataObjectUpdate {
+
+ private DataObjectDelete(@Nonnull final InstanceIdentifier<?> id,
+ @Nullable final DataObject dataBefore) {
+ super(id, dataBefore, null);
+ }
+ }
+}