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/*
* Copyright (C) 2020 Graylog, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the Server Side Public License, version 1,
* as published by MongoDB, Inc.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* Server Side Public License for more details.
*
* You should have received a copy of the Server Side Public License
* along with this program. If not, see
* .
*/
package org.graylog2.contentpacks.facades;
import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.google.common.annotations.VisibleForTesting;
import com.google.common.collect.ImmutableSet;
import org.graylog2.contentpacks.EntityDescriptorIds;
import org.graylog2.contentpacks.model.ModelId;
import org.graylog2.contentpacks.model.ModelType;
import org.graylog2.contentpacks.model.ModelTypes;
import org.graylog2.contentpacks.model.constraints.Constraint;
import org.graylog2.contentpacks.model.constraints.PluginVersionConstraint;
import org.graylog2.contentpacks.model.entities.Entity;
import org.graylog2.contentpacks.model.entities.EntityDescriptor;
import org.graylog2.contentpacks.model.entities.EntityExcerpt;
import org.graylog2.contentpacks.model.entities.EntityV1;
import org.graylog2.contentpacks.model.entities.LookupDataAdapterEntity;
import org.graylog2.contentpacks.model.entities.NativeEntity;
import org.graylog2.contentpacks.model.entities.NativeEntityDescriptor;
import org.graylog2.contentpacks.model.entities.references.ValueReference;
import org.graylog2.jackson.TypeReferences;
import org.graylog2.lookup.db.DBDataAdapterService;
import org.graylog2.lookup.dto.DataAdapterDto;
import org.graylog2.plugin.PluginMetaData;
import org.graylog2.plugin.lookup.LookupDataAdapterConfiguration;
import javax.inject.Inject;
import java.util.Map;
import java.util.Optional;
import java.util.Set;
import java.util.stream.Collectors;
import static org.graylog2.contentpacks.model.entities.references.ReferenceMapUtils.toReferenceMap;
import static org.graylog2.contentpacks.model.entities.references.ReferenceMapUtils.toValueMap;
public class LookupDataAdapterFacade implements EntityFacade {
public static final ModelType TYPE_V1 = ModelTypes.LOOKUP_ADAPTER_V1;
private final ObjectMapper objectMapper;
private final DBDataAdapterService dataAdapterService;
private final Set pluginMetaData;
@Inject
public LookupDataAdapterFacade(ObjectMapper objectMapper,
DBDataAdapterService dataAdapterService,
Set pluginMetaData) {
this.objectMapper = objectMapper;
this.dataAdapterService = dataAdapterService;
this.pluginMetaData = pluginMetaData;
}
@VisibleForTesting
Entity exportNativeEntity(DataAdapterDto dataAdapterDto, EntityDescriptorIds entityDescriptorIds) {
// TODO: Create independent representation of entity?
final Map configuration = objectMapper.convertValue(dataAdapterDto.config(), TypeReferences.MAP_STRING_OBJECT);
final LookupDataAdapterEntity lookupDataAdapterEntity = LookupDataAdapterEntity.create(
ValueReference.of(dataAdapterDto.name()),
ValueReference.of(dataAdapterDto.title()),
ValueReference.of(dataAdapterDto.description()),
toReferenceMap(configuration));
final JsonNode data = objectMapper.convertValue(lookupDataAdapterEntity, JsonNode.class);
final Set constraints = versionConstraints(dataAdapterDto);
return EntityV1.builder()
.id(ModelId.of(entityDescriptorIds.getOrThrow(dataAdapterDto.id(), ModelTypes.LOOKUP_ADAPTER_V1)))
.type(ModelTypes.LOOKUP_ADAPTER_V1)
.constraints(ImmutableSet.copyOf(constraints))
.data(data)
.build();
}
private Set versionConstraints(DataAdapterDto dataAdapterDto) {
// TODO: Find more robust method of identifying the providing plugin
final String packageName = dataAdapterDto.config().getClass().getPackage().getName();
return pluginMetaData.stream()
.filter(metaData -> packageName.startsWith(metaData.getClass().getPackage().getName()))
.map(PluginVersionConstraint::of)
.collect(Collectors.toSet());
}
@Override
public NativeEntity createNativeEntity(Entity entity,
Map parameters,
Map nativeEntities,
String username) {
if (entity instanceof EntityV1) {
return decode((EntityV1) entity, parameters);
} else {
throw new IllegalArgumentException("Unsupported entity version: " + entity.getClass());
}
}
private NativeEntity decode(EntityV1 entity, final Map parameters) {
final LookupDataAdapterEntity lookupDataAdapterEntity = objectMapper.convertValue(entity.data(), LookupDataAdapterEntity.class);
final LookupDataAdapterConfiguration configuration = objectMapper.convertValue(toValueMap(lookupDataAdapterEntity.configuration(), parameters), LookupDataAdapterConfiguration.class);
final DataAdapterDto dataAdapterDto = DataAdapterDto.builder()
.name(lookupDataAdapterEntity.name().asString(parameters))
.title(lookupDataAdapterEntity.title().asString(parameters))
.description(lookupDataAdapterEntity.description().asString(parameters))
.config(configuration)
.build();
final DataAdapterDto savedDataAdapterDto = dataAdapterService.save(dataAdapterDto);
return NativeEntity.create(entity.id(), savedDataAdapterDto.id(), TYPE_V1, savedDataAdapterDto.title(), savedDataAdapterDto);
}
@Override
public Optional> findExisting(Entity entity, Map parameters) {
if (entity instanceof EntityV1) {
return findExisting((EntityV1) entity, parameters);
} else {
throw new IllegalArgumentException("Unsupported entity version: " + entity.getClass());
}
}
private Optional> findExisting(EntityV1 entity, Map parameters) {
final LookupDataAdapterEntity dataAdapterEntity = objectMapper.convertValue(entity.data(), LookupDataAdapterEntity.class);
final String name = dataAdapterEntity.name().asString(parameters);
final Optional existingDataAdapter = dataAdapterService.get(name);
return existingDataAdapter.map(dataAdapter -> NativeEntity.create(entity.id(), dataAdapter.id(), TYPE_V1, dataAdapter.title(), dataAdapter));
}
@Override
public Optional> loadNativeEntity(NativeEntityDescriptor nativeEntityDescriptor) {
return dataAdapterService.get(nativeEntityDescriptor.id().id())
.map(entity -> NativeEntity.create(nativeEntityDescriptor, entity));
}
@Override
public void delete(DataAdapterDto nativeEntity) {
dataAdapterService.delete(nativeEntity.id());
}
@Override
public EntityExcerpt createExcerpt(DataAdapterDto dataAdapterDto) {
return EntityExcerpt.builder()
.id(ModelId.of(dataAdapterDto.id()))
.type(ModelTypes.LOOKUP_ADAPTER_V1)
.title(dataAdapterDto.title())
.build();
}
@Override
public Set listEntityExcerpts() {
return dataAdapterService.findAll().stream()
.map(this::createExcerpt)
.collect(Collectors.toSet());
}
@Override
public Optional exportEntity(EntityDescriptor entityDescriptor, EntityDescriptorIds entityDescriptorIds) {
final ModelId modelId = entityDescriptor.id();
return dataAdapterService.get(modelId.id()).map(dataAdapterDto -> exportNativeEntity(dataAdapterDto, entityDescriptorIds));
}
}
