org.apache.torque.util.JdbcConfigurer Maven / Gradle / Ivy
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Maven plugin for converting database agnostic XML files into platform specific SQL files and for examining proprietary databases via JDBC to generate database agnostic XML files
package org.apache.torque.util;
import static org.apache.commons.lang.StringUtils.isBlank;
import static org.apache.commons.lang.StringUtils.isEmpty;
import java.util.Map;
import org.apache.commons.beanutils.BeanUtils;
import org.kuali.core.db.torque.PropertyHandlingException;
import org.kuali.db.DatabaseType;
import org.kuali.db.JDBCConfiguration;
import org.kuali.db.JDBCUtils;
public class JdbcConfigurer {
JDBCUtils jdbcUtils = new JDBCUtils();
@SuppressWarnings("unchecked")
protected boolean hasProperty(String name, Object bean) throws PropertyHandlingException {
try {
Map description = BeanUtils.describe(bean);
return description.containsKey(name);
} catch (Exception e) {
throw new PropertyHandlingException(e);
}
}
@SuppressWarnings("unchecked")
protected T getProperty(String name, Object bean) {
try {
if (hasProperty(name, bean)) {
return (T) BeanUtils.getProperty(bean, name);
} else {
return null;
}
} catch (Exception e) {
throw new RuntimeException(e);
}
}
protected void setProperty(Object bean, String name, Object value) throws PropertyHandlingException {
try {
BeanUtils.copyProperty(bean, name, value);
} catch (Exception e) {
throw new PropertyHandlingException(e);
}
}
public void updateConfiguration(Object bean) throws PropertyHandlingException {
String url = getProperty("url", bean);
if (isEmpty(url)) {
// If the url is empty, there is nothing to do
return;
}
JDBCConfiguration config = jdbcUtils.getDatabaseConfiguration(url);
if (config.equals(JDBCConfiguration.UNKNOWN_CONFIG)) {
return;
}
String driver = getProperty("driver", bean);
if (isBlank(driver)) {
setProperty(bean, "driver", config.getDriver());
}
String targetDatabase = getProperty("targetDatabase", bean);
if (isBlank(targetDatabase)) {
setProperty(bean, "targetDatabase", config.getType().toString().toLowerCase());
}
}
public void validateConfiguration(Object bean) {
String driver = getProperty("driver", bean);
if (isBlank(driver)) {
throw new IllegalArgumentException("No database driver. Specify one in the plugin configuration.");
}
String url = getProperty("url", bean);
if (isBlank(url)) {
throw new IllegalArgumentException(getEmptyURLErrorMessage());
}
String targetDatabase = getProperty("targetDatabase", bean);
try {
DatabaseType.valueOf(targetDatabase.toUpperCase());
} catch (IllegalArgumentException e) {
throw new IllegalArgumentException("Database type of '" + targetDatabase + "' is invalid. Valid values: " + org.springframework.util.StringUtils.arrayToCommaDelimitedString(DatabaseType.values()));
}
try {
Class.forName(driver);
} catch (ClassNotFoundException e) {
throw new IllegalArgumentException("Can't load driver class " + driver + ". Be sure to include it as a plugin dependency.");
}
}
protected String getEmptyURLErrorMessage() {
StringBuffer sb = new StringBuffer();
sb.append("\n\n");
sb.append("No url was supplied.\n");
sb.append("You can specify a url in the plugin configuration or provide it as a system property.\n\n");
sb.append("For example:\n\n");
sb.append("-Durl=jdbc:oracle:thin:@localhost:1521:XE (oracle)\n");
sb.append("-Durl=jdbc:mysql://localhost:3306/ (mysql)\n");
sb.append("\n.");
return sb.toString();
}
}
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