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/*
* Copyright (c) 2018 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.translate.write;
import com.google.common.annotations.Beta;
import io.fd.honeycomb.translate.write.DataValidationFailedException.CreateValidationFailedException;
import io.fd.honeycomb.translate.write.DataValidationFailedException.DeleteValidationFailedException;
import io.fd.honeycomb.translate.write.DataValidationFailedException.UpdateValidationFailedException;
import javax.annotation.Nonnull;
import org.opendaylight.yangtools.yang.binding.DataObject;
import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
/**
* Responsible for validation of DataObjects.
* Handles all update operations (create, update, delete).
*
* @param <D> Specific DataObject derived type, that is handled by this writer
* @see Writer#validate(InstanceIdentifier, DataObject, DataObject, WriteContext)
*/
@Beta
public interface Validator<D extends DataObject> {
/**
* Validates write operation.
*
* @param id Identifier(from root) of data being written
* @param dataAfter New data to be written
* @param writeContext Write context that provides information about current state of DataTree.
* @throws CreateValidationFailedException if write validation failed
*/
void validateWrite(
@Nonnull final InstanceIdentifier<D> id,
@Nonnull final D dataAfter,
@Nonnull final WriteContext writeContext) throws CreateValidationFailedException;
/**
* Validates update operation.
*
* @param id Identifier(from root) of data being updated
* @param dataBefore Old data
* @param dataAfter New, updated data
* @param writeContext Write context that provides information about current state of DataTree.
* @throws UpdateValidationFailedException if update validation failed
*/
void validateUpdate(InstanceIdentifier<D> id, D dataBefore, D dataAfter, WriteContext writeContext)
throws UpdateValidationFailedException;
/**
* Validates delete operation.
*
* @param id Identifier(from root) of data being written
* @param dataBefore Old data being deleted
* @param writeContext Write context that provides information about current state of DataTree.
* @throws DeleteValidationFailedException if delete validation failed
*/
void validateDelete(InstanceIdentifier<D> id, D dataBefore, WriteContext writeContext)
throws DeleteValidationFailedException;
}
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