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/*
* 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);
}
}
}
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