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/*
* ============LICENSE_START=======================================================
* ONAP PAP
* ================================================================================
* Copyright (C) 2019 AT&T Intellectual Property. All rights reserved.
* ================================================================================
* 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=========================================================
*/
package org.onap.policy.pap.main.rest.e2e;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import org.junit.After;
import org.junit.AfterClass;
import org.junit.BeforeClass;
import org.onap.policy.common.parameters.ValidationResult;
import org.onap.policy.common.utils.coder.Coder;
import org.onap.policy.common.utils.coder.CoderException;
import org.onap.policy.common.utils.coder.StandardCoder;
import org.onap.policy.common.utils.resources.ResourceUtils;
import org.onap.policy.common.utils.services.Registry;
import org.onap.policy.models.base.PfModelException;
import org.onap.policy.models.pdp.concepts.PdpGroups;
import org.onap.policy.models.provider.PolicyModelsProvider;
import org.onap.policy.models.tosca.authorative.concepts.ToscaServiceTemplate;
import org.onap.policy.pap.main.PapConstants;
import org.onap.policy.pap.main.PolicyModelsProviderFactoryWrapper;
import org.onap.policy.pap.main.PolicyPapRuntimeException;
import org.onap.policy.pap.main.rest.CommonPapRestServer;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.yaml.snakeyaml.Yaml;
public class End2EndBase extends CommonPapRestServer {
private static final Logger logger = LoggerFactory.getLogger(End2EndBase.class);
private static final Coder coder = new StandardCoder();
private static final Yaml yaml = new Yaml();
/**
* DB connection. This is kept open until {@link #stop()} is invoked so that the
* in-memory DB is not destroyed.
*/
private static PolicyModelsProvider dbConn;
/**
* DAO provider factory.
*/
private static PolicyModelsProviderFactoryWrapper daoFactory;
/**
* Context - should be initialized by setUp() method.
*/
protected End2EndContext context = null;
/**
* Starts Main and connects to the DB.
*
* @throws Exception if an error occurs
*/
@BeforeClass
public static void setUpBeforeClass() throws Exception {
CommonPapRestServer.setUpBeforeClass();
daoFactory = Registry.get(PapConstants.REG_PAP_DAO_FACTORY, PolicyModelsProviderFactoryWrapper.class);
try {
dbConn = daoFactory.create();
} catch (PfModelException e) {
throw new PolicyPapRuntimeException("cannot connect to DB", e);
}
}
/**
* Tears down.
*/
@AfterClass
public static void tearDownAfterClass() {
try {
dbConn.close();
} catch (PfModelException e) {
logger.warn("failed to close the DB", e);
}
try {
daoFactory.close();
} catch (Exception e) {
logger.warn("failed to close DAO factory", e);
}
CommonPapRestServer.teardownAfterClass();
}
/**
* Tears down.
*/
@After
public void tearDown() {
if (context != null) {
try {
context.stop();
} catch (Exception e) {
logger.warn("failed to stop end-to-end context", e);
}
context = null;
}
super.tearDown();
}
/**
* Adds Tosca Policy Types to the DB.
*
* @param yamlFile name of the YAML file specifying the data to be loaded
* @throws PfModelException if a DAO error occurs
*/
public static void addToscaPolicyTypes(String yamlFile) throws PfModelException {
ToscaServiceTemplate serviceTemplate = loadYamlFile(yamlFile, ToscaServiceTemplate.class);
dbConn.createPolicyTypes(serviceTemplate);
}
/**
* Adds Tosca Policies to the DB.
*
* @param yamlFile name of the YAML file specifying the data to be loaded
* @throws PfModelException if a DAO error occurs
*/
public static void addToscaPolicies(String yamlFile) throws PfModelException {
ToscaServiceTemplate serviceTemplate = loadYamlFile(yamlFile, ToscaServiceTemplate.class);
dbConn.createPolicies(serviceTemplate);
}
/**
* Adds PDP groups to the DB.
*
* @param jsonFile name of the JSON file specifying the data to be loaded
* @throws PfModelException if a DAO error occurs
*/
public static void addGroups(String jsonFile) throws PfModelException {
PdpGroups groups = loadJsonFile(jsonFile, PdpGroups.class);
ValidationResult result = groups.validatePapRest();
if (!result.isValid()) {
throw new PolicyPapRuntimeException("cannot init DB groups from " + jsonFile + ":\n" + result.getResult());
}
dbConn.createPdpGroups(groups.getGroups());
}
/**
* Loads an object from a YAML file.
*
* @param fileName name of the file from which to load
* @param clazz the class of the object to be loaded
* @return the object that was loaded from the file
*/
protected static <T> T loadYamlFile(String fileName, Class<T> clazz) {
File propFile = new File(ResourceUtils.getFilePath4Resource("e2e/" + fileName));
try (FileInputStream input = new FileInputStream(propFile)) {
Object yamlObject = yaml.load(input);
String json = coder.encode(yamlObject);
T result = coder.decode(json, clazz);
if (result == null) {
throw new PolicyPapRuntimeException("cannot decode " + clazz.getSimpleName() + " from " + fileName);
}
return result;
} catch (FileNotFoundException e) {
throw new PolicyPapRuntimeException("cannot find " + fileName, e);
} catch (IOException | CoderException e) {
throw new PolicyPapRuntimeException("cannot decode " + fileName, e);
}
}
/**
* Loads an object from a JSON file.
*
* @param fileName name of the file from which to load
* @param clazz the class of the object to be loaded
* @return the object that was loaded from the file
*/
protected static <T> T loadJsonFile(String fileName, Class<T> clazz) {
String fileName2 = (fileName.startsWith("src/") ? fileName : "e2e/" + fileName);
File propFile = new File(ResourceUtils.getFilePath4Resource(fileName2));
try {
T result = coder.decode(propFile, clazz);
if (result == null) {
throw new PolicyPapRuntimeException("cannot decode " + clazz.getSimpleName() + " from " + fileName);
}
return result;
} catch (CoderException e) {
throw new RuntimeException(e);
}
}
}
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