diff options
Diffstat (limited to 'infra/translate-impl/src/main/java/io/fd/honeycomb/translate/impl/write/GenericListWriter.java')
-rw-r--r-- | infra/translate-impl/src/main/java/io/fd/honeycomb/translate/impl/write/GenericListWriter.java | 106 |
1 files changed, 106 insertions, 0 deletions
diff --git a/infra/translate-impl/src/main/java/io/fd/honeycomb/translate/impl/write/GenericListWriter.java b/infra/translate-impl/src/main/java/io/fd/honeycomb/translate/impl/write/GenericListWriter.java new file mode 100644 index 000000000..f61812931 --- /dev/null +++ b/infra/translate-impl/src/main/java/io/fd/honeycomb/translate/impl/write/GenericListWriter.java @@ -0,0 +1,106 @@ +/* + * 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.translate.impl.write; + +import io.fd.honeycomb.translate.spi.write.ListWriterCustomizer; +import io.fd.honeycomb.translate.util.RWUtils; +import io.fd.honeycomb.translate.util.write.AbstractGenericWriter; +import io.fd.honeycomb.translate.write.ListWriter; +import io.fd.honeycomb.translate.write.WriteContext; +import io.fd.honeycomb.translate.write.WriteFailedException; +import io.fd.honeycomb.translate.spi.write.WriterCustomizer; +import javax.annotation.Nonnull; +import org.opendaylight.yangtools.yang.binding.DataObject; +import org.opendaylight.yangtools.yang.binding.Identifiable; +import org.opendaylight.yangtools.yang.binding.Identifier; +import org.opendaylight.yangtools.yang.binding.InstanceIdentifier; + +/** + * Generic list node writer with customizable behavior thanks to injected customizer. + */ +public final class GenericListWriter<D extends DataObject & Identifiable<K>, K extends Identifier<D>> extends + AbstractGenericWriter<D> implements ListWriter<D, K> { + + private final WriterCustomizer<D> customizer; + + public GenericListWriter(@Nonnull final InstanceIdentifier<D> type, + @Nonnull final ListWriterCustomizer<D, K> customizer) { + super(type); + this.customizer = customizer; + } + + @Override + protected void writeCurrentAttributes(@Nonnull final InstanceIdentifier<D> id, @Nonnull final D data, + @Nonnull final WriteContext ctx) throws WriteFailedException { + customizer.writeCurrentAttributes(id, data, ctx); + } + + @Override + protected void deleteCurrentAttributes(@Nonnull final InstanceIdentifier<D> id, @Nonnull final D dataBefore, + @Nonnull final WriteContext ctx) throws WriteFailedException { + customizer.deleteCurrentAttributes(id, dataBefore, ctx); + } + + @Override + protected void updateCurrentAttributes(@Nonnull final InstanceIdentifier<D> id, @Nonnull final D dataBefore, + @Nonnull final D dataAfter, @Nonnull final WriteContext ctx) + throws WriteFailedException { + customizer.updateCurrentAttributes(id, dataBefore, dataAfter, ctx); + } + + @Override + protected void writeCurrent(final InstanceIdentifier<D> id, final D data, final WriteContext ctx) + throws WriteFailedException { + // Make sure the key is present + if (isWildcarded(id)) { + super.writeCurrent(getSpecificId(id, data), data, ctx); + } else { + super.writeCurrent(id, data, ctx); + } + } + + @Override + protected void updateCurrent(final InstanceIdentifier<D> id, final D dataBefore, final D dataAfter, + final WriteContext ctx) throws WriteFailedException { + // Make sure the key is present + if (isWildcarded(id)) { + super.updateCurrent(getSpecificId(id, dataBefore), dataBefore, dataAfter, ctx); + } else { + super.updateCurrent(id, dataBefore, dataAfter, ctx); + } + } + + @Override + protected void deleteCurrent(final InstanceIdentifier<D> id, final D dataBefore, final WriteContext ctx) + throws WriteFailedException { + // Make sure the key is present + if (isWildcarded(id)) { + super.deleteCurrent(getSpecificId(id, dataBefore), dataBefore, ctx); + } else { + super.deleteCurrent(id, dataBefore, ctx); + } + } + + private boolean isWildcarded(final InstanceIdentifier<D> id) { + return id.firstIdentifierOf(getManagedDataObjectType().getTargetType()).isWildcarded(); + } + + private InstanceIdentifier<D> getSpecificId(final InstanceIdentifier<D> currentId, final D current) { + return RWUtils.replaceLastInId(currentId, + new InstanceIdentifier.IdentifiableItem<>(currentId.getTargetType(), current.getKey())); + } +} |