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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.
*
*/
package org.apache.tomcat.dbcp.dbcp2;
import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.Statement;
import java.text.MessageFormat;
import java.util.ResourceBundle;
/**
* Utility methods
* @since 2.0
*/
public final class Utils {
private static final ResourceBundle messages = ResourceBundle.getBundle(
Utils.class.getPackage().getName() + ".LocalStrings");
public static final boolean IS_SECURITY_ENABLED =
System.getSecurityManager() != null;
private Utils() {
// not instantiable
}
/**
* Closes the ResultSet (which may be null).
*
* @param rset a ResultSet, may be {@code null}
*/
public static void closeQuietly(ResultSet rset) {
if (rset != null) {
try {
rset.close();
} catch (Exception e) {
// ignored
}
}
}
/**
* Closes the Connection (which may be null).
*
* @param conn a Connection, may be {@code null}
*/
public static void closeQuietly(Connection conn) {
if (conn != null) {
try {
conn.close();
} catch (Exception e) {
// ignored
}
}
}
/**
* Closes the Statement (which may be null).
*
* @param stmt a Statement, may be {@code null}
*/
public static void closeQuietly(Statement stmt) {
if (stmt != null) {
try {
stmt.close();
} catch (Exception e) {
// ignored
}
}
}
/**
* Obtain the correct i18n message for the given key.
*/
public static String getMessage(String key) {
return getMessage(key, (Object[]) null);
}
/**
* Obtain the correct i18n message for the given key with placeholders
* replaced by the supplied arguments.
*/
public static String getMessage(String key, Object... args) {
String msg = messages.getString(key);
if (args == null || args.length == 0) {
return msg;
}
MessageFormat mf = new MessageFormat(msg);
return mf.format(args, new StringBuffer(), null).toString();
}
}
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