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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.samples.interfaces.mapping.config;
import io.fd.honeycomb.samples.interfaces.mapping.LowerLayerAccess;
import io.fd.honeycomb.translate.spi.write.ListWriterCustomizer;
import io.fd.honeycomb.translate.write.WriteContext;
import io.fd.honeycomb.translate.write.WriteFailedException;
import javax.annotation.Nonnull;
import org.opendaylight.yang.gen.v1.io.fd.honeycomb.samples.interfaces.rev160810.interfaces.Interface;
import org.opendaylight.yang.gen.v1.io.fd.honeycomb.samples.interfaces.rev160810.interfaces.InterfaceKey;
import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* This is a customizer responsible for writing(updating and also deleting) Interface config data
*/
public class InterfaceWriterCustomizer implements ListWriterCustomizer<Interface, InterfaceKey> {
private static final Logger LOG = LoggerFactory.getLogger(InterfaceWriterCustomizer.class);
private final LowerLayerAccess access;
public InterfaceWriterCustomizer(final LowerLayerAccess access) {
this.access = access;
}
@Override
public void writeCurrentAttributes(@Nonnull final InstanceIdentifier<Interface> id,
@Nonnull final Interface dataAfter, @Nonnull final WriteContext writeContext)
throws WriteFailedException {
try {
// Context can be used just like the context in ReadCustomizer see InterfaceReaderCustomizer
// + it also provides a window into the entire configuration tree before current transaction and during current transaction
// just in case, some additional data is necessary here
access.writeInterface(id, dataAfter, writeContext);
} catch (Exception e) {
throw new WriteFailedException.CreateFailedException(id, dataAfter, e);
}
}
@Override
public void updateCurrentAttributes(@Nonnull final InstanceIdentifier<Interface> id,
@Nonnull final Interface dataBefore, @Nonnull final Interface dataAfter,
@Nonnull final WriteContext writeContext) throws WriteFailedException {
// There are cases when lower layer does not support all of the CRUD operations, in which case, the handler
// should look like this (This will reject configuration from upper layers, returning error/rpc-error):
throw new WriteFailedException.UpdateFailedException(id, dataBefore, dataAfter,
new UnsupportedOperationException("Unable to update interface data, unsupported at lower layer"));
}
@Override
public void deleteCurrentAttributes(@Nonnull final InstanceIdentifier<Interface> id,
@Nonnull final Interface dataBefore, @Nonnull final WriteContext writeContext)
throws WriteFailedException {
try {
// Context can be used just like the context in ReadCustomizer see InterfaceReaderCustomizer
// + it also provides a window into the entire configuration tree before current transaction and during current transaction
// just in case, some additional data is necessary here
access.deleteInterface(id, dataBefore, writeContext);
} catch (Exception e) {
throw new WriteFailedException.DeleteFailedException(id, e);
}
}
}
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