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/*-
* ============LICENSE_START=======================================================
* site-manager
* ================================================================================
* Copyright (C) 2018 Ericsson. 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.common.sitemanager.utils;
import static org.onap.policy.common.sitemanager.utils.Constants.JDBC_DRIVER_PROPERTY_NAME;
import static org.onap.policy.common.sitemanager.utils.Constants.JDBC_PASSWORD_PROPERTY_NAME;
import static org.onap.policy.common.sitemanager.utils.Constants.JDBC_URL_PROPERTY_NAME;
import static org.onap.policy.common.sitemanager.utils.Constants.JDBC_USER_PROPERTY_NAME;
import static org.onap.policy.common.sitemanager.utils.ErrorMessages.SITE_MANAGER_PROPERY_FILE_MISSING_PROPERTY;
import static org.onap.policy.common.sitemanager.utils.ErrorMessages.SITE_MANAGER_PROPERY_FILE_NOT_DEFINED_MESSAGE;
import java.io.BufferedReader;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.Properties;
import org.onap.policy.common.sitemanager.exception.MissingPropertyException;
import org.onap.policy.common.sitemanager.exception.PropertyFileProcessingException;
public class PersistenceUnitPropertiesProvider {
private PersistenceUnitPropertiesProvider() {
super();
}
/**
* Parser and validate properties in give property file. <br>
* valid and mandatory property name
*
* <ul>
* <li>javax.persistence.jdbc.driver</li>
* <li>javax.persistence.jdbc.url</li>
* <li>javax.persistence.jdbc.user</li>
* <li>javax.persistence.jdbc.password</li>
* </ul>
*
* @param propertiesFileName the properties filename
* @param printable {@link Printable}
* @return {@link Properties}
*/
public static Properties getProperties(final String propertiesFileName, final Printable printable) {
if (propertiesFileName == null) {
printable.println(SITE_MANAGER_PROPERY_FILE_NOT_DEFINED_MESSAGE);
printable.println(SITE_MANAGER_PROPERY_FILE_MISSING_PROPERTY);
throw new PropertyFileProcessingException("Property file name is null :" + propertiesFileName);
}
final Path filePath = Paths.get(propertiesFileName);
final Properties properties = getProperties(filePath, printable);
// verify that we have all of the properties needed
if (isNotValid(properties, JDBC_DRIVER_PROPERTY_NAME, JDBC_URL_PROPERTY_NAME, JDBC_USER_PROPERTY_NAME,
JDBC_PASSWORD_PROPERTY_NAME)) {
// one or more missing properties
printable.println(SITE_MANAGER_PROPERY_FILE_MISSING_PROPERTY);
throw new MissingPropertyException("missing mandatory attributes");
}
return properties;
}
private static Properties getProperties(final Path filePath, final Printable printable) {
if (!filePath.toFile().exists()) {
printable.println(SITE_MANAGER_PROPERY_FILE_NOT_DEFINED_MESSAGE);
printable.println(SITE_MANAGER_PROPERY_FILE_MISSING_PROPERTY);
throw new PropertyFileProcessingException("Property file not found");
}
try (final BufferedReader bufferedReader = Files.newBufferedReader(filePath);) {
final Properties properties = new Properties();
properties.load(bufferedReader);
return properties;
} catch (final IOException exception) {
printable.println("Exception loading properties: " + exception);
printable.println(ErrorMessages.SITE_MANAGER_PROPERY_FILE_NOT_DEFINED_MESSAGE);
printable.println(ErrorMessages.SITE_MANAGER_PROPERY_FILE_MISSING_PROPERTY);
throw new PropertyFileProcessingException("Exception loading properties: ", exception);
}
}
private static boolean isNotValid(final Properties properties, final String... values) {
if (values == null || values.length == 0) {
return true;
}
for (final String val : values) {
if (properties.get(val) == null) {
return true;
}
}
return false;
}
}
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