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/**
* ============LICENSE_START==========================================
* org.onap.aai
* ===================================================================
* Copyright © 2017 AT&T Intellectual Property. All rights reserved.
* Copyright © 2017 Amdocs
* ===================================================================
* 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.
* ============LICENSE_END============================================
* ECOMP is a trademark and service mark of AT&T Intellectual Property.
*/
package org.onap.aai.champcore.schema;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Optional;
import java.util.Set;
import java.util.concurrent.atomic.AtomicInteger;
import org.onap.aai.champcore.exceptions.ChampSchemaViolationException;
import org.onap.aai.champcore.model.ChampConnectionConstraint;
import org.onap.aai.champcore.model.ChampField;
import org.onap.aai.champcore.model.ChampObject;
import org.onap.aai.champcore.model.ChampObjectConstraint;
import org.onap.aai.champcore.model.ChampPartition;
import org.onap.aai.champcore.model.ChampPropertyConstraint;
import org.onap.aai.champcore.model.ChampRelationship;
import org.onap.aai.champcore.model.ChampRelationshipConstraint;
import org.onap.aai.champcore.model.ChampSchema;
public final class DefaultChampSchemaEnforcer implements ChampSchemaEnforcer {
@Override
public void validate(ChampObject champObject, ChampObjectConstraint champObjectConstraint) throws ChampSchemaViolationException {
for (ChampPropertyConstraint pc : champObjectConstraint.getPropertyConstraints()) {
final ChampField field = pc.getField();
final Optional<Object> property = champObject.getProperty(field.getName());
if (pc.isRequired() && !property.isPresent()) {
throw new ChampSchemaViolationException("Required property " + pc.getField().getName() + " is not present");
}
if (property.isPresent()) {
switch (pc.getCardinality()) {
case SINGLE:
if (!pc.getField().getJavaType().isInstance(property.get())) {
throw new ChampSchemaViolationException("Expected type " + pc.getField().getType() + " for type " + pc.getField().getName());
}
break;
case LIST:
if (!(property.get() instanceof List)) throw new ChampSchemaViolationException("Expected List type for ChampCardinality." + pc.getCardinality());
break;
case SET:
if (!(property.get() instanceof Set)) throw new ChampSchemaViolationException("Expected Set type for ChampCardinality." + pc.getCardinality());
break;
default:
throw new RuntimeException("Unknown property constraint cardinality " + pc.getCardinality());
}
}
}
}
@Override
public void validate(ChampRelationship champRelationship,
ChampRelationshipConstraint champRelationshipConstraint) throws ChampSchemaViolationException {
for (ChampPropertyConstraint pc : champRelationshipConstraint.getPropertyConstraints()) {
final ChampField field = pc.getField();
final Optional<Object> property = champRelationship.getProperty(field.getName());
if (pc.isRequired() && !property.isPresent()) {
throw new ChampSchemaViolationException("Required property " + pc.getField().getName() + " is not present");
}
if (property.isPresent() && !pc.getField().getJavaType().isInstance(property.get())) {
throw new ChampSchemaViolationException("Expected type " + pc.getField().getType() + " for type " + pc.getField().getName());
}
}
}
@Override
public void validate(ChampPartition champPartition, ChampSchema schema) throws ChampSchemaViolationException {
for (ChampObject object : champPartition.getChampObjects()) {
final Optional<ChampObjectConstraint> objConstraint = schema.getObjectConstraint(object.getType());
if (!objConstraint.isPresent()) continue;
validate(object, objConstraint.get());
final Map<String, Set<ChampRelationship>> incidentRelationshipsByType = champPartition.getIncidentRelationshipsByType(object);
for (Map.Entry<String, Set<ChampRelationship>> incidentRelationshipsOfType : incidentRelationshipsByType.entrySet()) {
final Optional<ChampRelationshipConstraint> relConstraint = schema.getRelationshipConstraint(incidentRelationshipsOfType.getKey());
if (relConstraint.isPresent()) {
final ChampRelationshipConstraint relationshipConstraint = relConstraint.get();
final Map<ChampConnectionConstraint, AtomicInteger> connectionCounts = new HashMap<ChampConnectionConstraint, AtomicInteger> ();
for (ChampRelationship incidentRelationship : incidentRelationshipsOfType.getValue()) {
final Optional<ChampConnectionConstraint> connectionConstraint = relationshipConstraint.getConnectionConstraint(incidentRelationship);
validate(incidentRelationship, relationshipConstraint);
if (connectionConstraint.isPresent()) {
if (!connectionCounts.containsKey(connectionConstraint.get())) {
connectionCounts.put(connectionConstraint.get(), new AtomicInteger(0));
}
final int connectionCount = connectionCounts.get(connectionConstraint.get()).incrementAndGet();
switch (connectionConstraint.get().getMultiplicity()) {
case MANY:
//Always valid
break;
case NONE:
if (connectionCount > 0) throw new ChampSchemaViolationException("Violated connection constraint " + connectionConstraint.get());
break;
case ONE:
if (connectionCount > 1) throw new ChampSchemaViolationException("Violated connection constraint " + connectionConstraint.get());
break;
default:
break;
}
}
}
}
}
}
}
}
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