/*
* (C) Copyright 2017 Nuxeo (http://nuxeo.com/) and others.
*
* 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.
*
* Contributors:
* dmetzler
*/
package org.nuxeo.launcher.config.backingservices;
import static org.nuxeo.launcher.config.ConfigurationGenerator.PARAM_DB_DRIVER;
import static org.nuxeo.launcher.config.ConfigurationGenerator.PARAM_DB_HOST;
import static org.nuxeo.launcher.config.ConfigurationGenerator.PARAM_DB_JDBC_URL;
import static org.nuxeo.launcher.config.ConfigurationGenerator.PARAM_DB_NAME;
import static org.nuxeo.launcher.config.ConfigurationGenerator.PARAM_DB_PORT;
import static org.nuxeo.launcher.config.ConfigurationGenerator.PARAM_DB_PWD;
import static org.nuxeo.launcher.config.ConfigurationGenerator.PARAM_DB_USER;
import static org.nuxeo.launcher.config.ConfigurationGenerator.PARAM_TEMPLATE_DBNAME;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLClassLoader;
import java.sql.Connection;
import java.sql.Driver;
import java.sql.DriverManager;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.Properties;
import org.apache.commons.lang.ArrayUtils;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.nuxeo.common.codec.CryptoProperties;
import org.nuxeo.common.utils.TextTemplate;
import org.nuxeo.launcher.commons.DatabaseDriverException;
import org.nuxeo.launcher.config.ConfigurationException;
import org.nuxeo.launcher.config.ConfigurationGenerator;
/**
* @since 9.2
*/
public class DBCheck implements BackingChecker {
private static final Log log = LogFactory.getLog(DBCheck.class);
public static final List<String> DB_EXCLUDE_CHECK_LIST = Arrays.asList("default", "none");
@Override
public boolean accepts(ConfigurationGenerator cg) {
return !DB_EXCLUDE_CHECK_LIST.contains(
cg.getUserConfig().getProperty(ConfigurationGenerator.PARAM_TEMPLATE_DBTYPE));
}
@Override
public void check(ConfigurationGenerator cg) throws ConfigurationException {
try {
checkDatabaseConnection(cg);
} catch (IOException e) {
throw new ConfigurationException(e);
} catch (DatabaseDriverException e) {
log.debug(e, e);
log.error(e.getMessage());
throw new ConfigurationException("Could not find database driver: " + e.getMessage());
} catch (SQLException e) {
log.debug(e, e);
log.error(e.getMessage());
throw new ConfigurationException("Failed to connect on database: " + e.getMessage());
}
}
/**
* Check driver availability and database connection
*
* @throws DatabaseDriverException
* @throws IOException
* @throws FileNotFoundException
* @throws SQLException
*/
public void checkDatabaseConnection(ConfigurationGenerator cg)
throws FileNotFoundException, IOException, DatabaseDriverException, SQLException {
CryptoProperties config = cg.getUserConfig();
String databaseTemplate = config.getProperty(ConfigurationGenerator.PARAM_TEMPLATE_DBNAME);
String dbName = config.getProperty(ConfigurationGenerator.PARAM_DB_NAME);
String dbUser = config.getProperty(ConfigurationGenerator.PARAM_DB_USER);
String dbPassword = config.getProperty(ConfigurationGenerator.PARAM_DB_PWD);
String dbHost = config.getProperty(ConfigurationGenerator.PARAM_DB_HOST);
String dbPort = config.getProperty(ConfigurationGenerator.PARAM_DB_PORT);
File databaseTemplateDir = new File(cg.getNuxeoHome(), ConfigurationGenerator.TEMPLATES + File.separator + databaseTemplate);
Properties templateProperties = ConfigurationGenerator.loadTrimmedProperties(new File(databaseTemplateDir, ConfigurationGenerator.NUXEO_DEFAULT_CONF));
String classname, connectionUrl;
if (config.getProperty(PARAM_TEMPLATE_DBNAME).equals(databaseTemplateDir)) {
// config already includes databaseTemplate
classname = config.getProperty(PARAM_DB_DRIVER);
connectionUrl = config.getProperty(PARAM_DB_JDBC_URL);
} else { // testing a databaseTemplate not included in config
// check if value is set in nuxeo.conf
if (config.containsKey(PARAM_DB_DRIVER)) {
classname = (String) config.get(PARAM_DB_DRIVER);
} else {
classname = templateProperties.getProperty(PARAM_DB_DRIVER);
}
if (config.containsKey(PARAM_DB_JDBC_URL)) {
connectionUrl = (String) config.get(PARAM_DB_JDBC_URL);
} else {
connectionUrl = templateProperties.getProperty(PARAM_DB_JDBC_URL);
}
}
// Load driver class from template or default lib directory
Driver driver = lookupDriver(cg, databaseTemplate, databaseTemplateDir, classname);
// Test db connection
DriverManager.registerDriver(driver);
Properties ttProps = new Properties(config);
ttProps.put(PARAM_DB_HOST, dbHost);
ttProps.put(PARAM_DB_PORT, dbPort);
ttProps.put(PARAM_DB_NAME, dbName);
ttProps.put(PARAM_DB_USER, dbUser);
ttProps.put(PARAM_DB_PWD, dbPassword);
TextTemplate tt = new TextTemplate(ttProps);
String url = tt.processText(connectionUrl);
Properties conProps = new Properties();
conProps.put("user", dbUser);
conProps.put("password", dbPassword);
log.debug("Testing URL " + url + " with " + conProps);
Connection con = driver.connect(url, conProps);
con.close();
}
/**
* Build an {@link URLClassLoader} for the given databaseTemplate looking in the templates directory and in the
* server lib directory, then looks for a driver
* @param cg
*
* @param classname Driver class name, defined by {@link #PARAM_DB_DRIVER}
* @return Driver driver if found, else an Exception must have been raised.
* @throws IOException
* @throws FileNotFoundException
* @throws DatabaseDriverException If there was an error when trying to instantiate the driver.
* @since 5.6
*/
private Driver lookupDriver(ConfigurationGenerator cg, String databaseTemplate, File databaseTemplateDir, String classname)
throws FileNotFoundException, IOException, DatabaseDriverException {
File[] files = (File[]) ArrayUtils.addAll( //
new File(databaseTemplateDir, "lib").listFiles(), //
cg.getServerConfigurator().getServerLibDir().listFiles());
List<URL> urlsList = new ArrayList<>();
if (files != null) {
for (File file : files) {
if (file.getName().endsWith("jar")) {
try {
urlsList.add(new URL("jar:file:" + file.getPath() + "!/"));
log.debug("Added " + file.getPath());
} catch (MalformedURLException e) {
log.error(e);
}
}
}
}
URLClassLoader ucl = new URLClassLoader(urlsList.toArray(new URL[0]));
try {
return (Driver) Class.forName(classname, true, ucl).newInstance();
} catch (InstantiationException | IllegalAccessException | ClassNotFoundException e) {
throw new DatabaseDriverException(e);
}
}
}