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/*-
* ============LICENSE_START=======================================================
* Copyright (C) 2016-2018 Ericsson. All rights reserved.
* Modifications Copyright (C) 2019 Nordix Foundation.
* ================================================================================
* 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.
*
* SPDX-License-Identifier: Apache-2.0
* ============LICENSE_END=========================================================
*/
package org.onap.policy.apex.model.modelapi.impl;
import java.util.Properties;
import java.util.Set;
import org.onap.policy.apex.model.basicmodel.concepts.AxArtifactKey;
import org.onap.policy.apex.model.basicmodel.concepts.AxValidationResult;
import org.onap.policy.apex.model.basicmodel.handling.ApexModelStringWriter;
import org.onap.policy.apex.model.contextmodel.concepts.AxContextSchema;
import org.onap.policy.apex.model.modelapi.ApexApiResult;
import org.onap.policy.apex.model.modelapi.ApexModel;
import org.onap.policy.common.utils.validation.Assertions;
/**
* This class acts as a facade for operations towards a policy model for context schema operations.
*
* @author Liam Fallon (liam.fallon@ericsson.com)
*/
public class ContextSchemaFacade {
private static final String CONCEPT = "concept ";
private static final String CONCEPT_S = "concept(s) ";
private static final String DOES_NOT_EXIST = " does not exist";
private static final String DO_ES_NOT_EXIST = " do(es) not exist";
private static final String ALREADY_EXISTS = " already exists";
// Apex model we're working towards
private final ApexModel apexModel;
// Properties to use for the model
private final Properties apexProperties;
// Facade classes for working towards the real Apex model
private final KeyInformationFacade keyInformationFacade;
// JSON output on list/delete if set
private final boolean jsonMode;
/**
* Constructor to create the context schema facade for the Model API.
*
* @param apexModel the apex model
* @param apexProperties Properties for the model
* @param jsonMode set to true to return JSON strings in list and delete operations, otherwise set to false
*/
public ContextSchemaFacade(final ApexModel apexModel, final Properties apexProperties, final boolean jsonMode) {
this.apexModel = apexModel;
this.apexProperties = apexProperties;
this.jsonMode = jsonMode;
keyInformationFacade = new KeyInformationFacade(apexModel, apexProperties, jsonMode);
}
/**
* Create a context schema.
*
* @param name name of the context schema
* @param version version of the context schema, set to null to use the default version
* @param schemaFlavour a string identifying the flavour of this context schema
* @param schemaDefinition a string containing the definition of this context schema
* @param uuid context schema UUID, set to null to generate a UUID
* @param description context schema description, set to null to generate a description
* @return result of the operation
*/
public ApexApiResult createContextSchema(final String name, final String version, final String schemaFlavour,
final String schemaDefinition, final String uuid, final String description) {
try {
Assertions.argumentNotNull(schemaFlavour, "schemaFlavour may not be null");
final AxArtifactKey key = new AxArtifactKey();
key.setName(name);
if (version != null) {
key.setVersion(version);
} else {
key.setVersion(apexProperties.getProperty("DEFAULT_CONCEPT_VERSION"));
}
if (apexModel.getPolicyModel().getSchemas().getSchemasMap().containsKey(key)) {
return new ApexApiResult(ApexApiResult.Result.CONCEPT_EXISTS, CONCEPT + key.getId() + ALREADY_EXISTS);
}
apexModel.getPolicyModel().getSchemas().getSchemasMap().put(key,
new AxContextSchema(key, schemaFlavour, schemaDefinition));
if (apexModel.getPolicyModel().getKeyInformation().getKeyInfoMap().containsKey(key)) {
return keyInformationFacade.updateKeyInformation(name, version, uuid, description);
} else {
return keyInformationFacade.createKeyInformation(name, version, uuid, description);
}
} catch (final Exception e) {
return new ApexApiResult(ApexApiResult.Result.FAILED, e);
}
}
/**
* Update a context schema.
*
* @param name name of the context schema
* @param version version of the context schema, set to null to update the latest version
* @param schemaFlavour a string identifying the flavour of this context schema
* @param schemaDefinition a string containing the definition of this context schema
* @param uuid context schema UUID, set to null to not update
* @param description context schema description, set to null to not update
* @return result of the operation
*/
public ApexApiResult updateContextSchema(final String name, final String version, final String schemaFlavour,
final String schemaDefinition, final String uuid, final String description) {
try {
final AxContextSchema schema = apexModel.getPolicyModel().getSchemas().get(name, version);
if (schema == null) {
return new ApexApiResult(ApexApiResult.Result.CONCEPT_DOES_NOT_EXIST,
CONCEPT + name + ':' + version + DOES_NOT_EXIST);
}
if (schemaFlavour != null) {
schema.setSchemaFlavour(schemaFlavour);
}
if (schemaDefinition != null) {
schema.setSchema(schemaDefinition);
}
return keyInformationFacade.updateKeyInformation(name, version, uuid, description);
} catch (final Exception e) {
return new ApexApiResult(ApexApiResult.Result.FAILED, e);
}
}
/**
* List context schemas.
*
* @param name name of the context schema, set to null to list all
* @param version starting version of the context schema, set to null to list all versions
* @return result of the operation
*/
public ApexApiResult listContextSchemas(final String name, final String version) {
try {
final Set<AxContextSchema> schemaSet = apexModel.getPolicyModel().getSchemas().getAll(name, version);
if (name != null && schemaSet.isEmpty()) {
return new ApexApiResult(ApexApiResult.Result.CONCEPT_DOES_NOT_EXIST,
CONCEPT_S + name + ':' + version + DO_ES_NOT_EXIST);
}
final ApexApiResult result = new ApexApiResult();
for (final AxContextSchema schema : schemaSet) {
result.addMessage(new ApexModelStringWriter<AxContextSchema>(false).writeString(schema,
AxContextSchema.class, jsonMode));
}
return result;
} catch (final Exception e) {
return new ApexApiResult(ApexApiResult.Result.FAILED, e);
}
}
/**
* Delete a context schema.
*
* @param name name of the context schema
* @param version version of the context schema, set to null to delete all versions
* @return result of the operation
*/
public ApexApiResult deleteContextSchema(final String name, final String version) {
try {
if (version != null) {
final AxArtifactKey key = new AxArtifactKey(name, version);
final AxContextSchema removedSchema = apexModel.getPolicyModel().getSchemas().getSchemasMap()
.remove(key);
if (removedSchema != null) {
return new ApexApiResult(ApexApiResult.Result.SUCCESS,
new ApexModelStringWriter<AxContextSchema>(false).writeString(removedSchema,
AxContextSchema.class, jsonMode));
} else {
return new ApexApiResult(ApexApiResult.Result.CONCEPT_DOES_NOT_EXIST,
CONCEPT + key.getId() + DOES_NOT_EXIST);
}
}
final Set<AxContextSchema> schemaSet = apexModel.getPolicyModel().getSchemas().getAll(name, version);
if (schemaSet.isEmpty()) {
return new ApexApiResult(ApexApiResult.Result.CONCEPT_DOES_NOT_EXIST,
CONCEPT_S + name + ':' + version + DO_ES_NOT_EXIST);
}
final ApexApiResult result = new ApexApiResult();
for (final AxContextSchema schema : schemaSet) {
result.addMessage(new ApexModelStringWriter<AxContextSchema>(false).writeString(schema,
AxContextSchema.class, jsonMode));
apexModel.getPolicyModel().getSchemas().getSchemasMap().remove(schema.getKey());
keyInformationFacade.deleteKeyInformation(name, version);
}
return result;
} catch (final Exception e) {
return new ApexApiResult(ApexApiResult.Result.FAILED, e);
}
}
/**
* Validate context schemas.
*
* @param name name of the context schema, set to null to list all
* @param version starting version of the context schema, set to null to list all versions
* @return result of the operation
*/
public ApexApiResult validateContextSchemas(final String name, final String version) {
try {
final Set<AxContextSchema> schemaSet = apexModel.getPolicyModel().getSchemas().getAll(name, version);
if (schemaSet.isEmpty()) {
return new ApexApiResult(ApexApiResult.Result.CONCEPT_DOES_NOT_EXIST,
CONCEPT_S + name + ':' + version + DO_ES_NOT_EXIST);
}
final ApexApiResult result = new ApexApiResult();
for (final AxContextSchema schema : schemaSet) {
final AxValidationResult validationResult = schema.validate(new AxValidationResult());
result.addMessage(new ApexModelStringWriter<AxArtifactKey>(false).writeString(schema.getKey(),
AxArtifactKey.class, jsonMode));
result.addMessage(validationResult.toString());
}
return result;
} catch (final Exception e) {
return new ApexApiResult(ApexApiResult.Result.FAILED, e);
}
}
}
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