/*
* 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.time.Duration;
import java.time.Instant;
import java.util.Collection;
import java.util.HashSet;
import java.util.Properties;
import java.util.ResourceBundle;
import java.util.Set;
import java.util.function .Consumer;
import org.apache.tomcat.dbcp.pool2.PooledObject;
/**
* Utility methods .
*
* @ since 2 . 0
*/
public final class Utils {
private static final ResourceBundle messages = ResourceBundle
.getBundle(Utils.class .getPackage().getName() + ".LocalStrings" );
/**
* Whether the security manager is enabled .
*
* @ deprecated No replacement .
*/
@Deprecated
public static final boolean IS_SECURITY_ENABLED = isSecurityEnabled();
/** Any SQL_STATE starting with this value is considered a fatal disconnect */
public static final String DISCONNECTION_SQL_CODE_PREFIX = "08" ;
/**
* SQL codes of fatal connection errors .
* < ul >
* < li > 57 P01 ( Admin shutdown ) < / li >
* < li > 57 P02 ( Crash shutdown ) < / li >
* < li > 57 P03 ( Cannot connect now ) < / li >
* < li > 01002 ( SQL92 disconnect error ) < / li >
* < li > JZ0C0 ( Sybase disconnect error ) < / li >
* < li > JZ0C1 ( Sybase disconnect error ) < / li >
* < / ul >
* @ deprecated Use { @ link # getDisconnectionSqlCodes ( ) } .
*/
@Deprecated
public static final Set<String> DISCONNECTION_SQL_CODES;
static final ResultSet[] EMPTY_RESULT_SET_ARRAY = {};
static final String[] EMPTY_STRING_ARRAY = {};
static {
DISCONNECTION_SQL_CODES = new HashSet<>();
DISCONNECTION_SQL_CODES.add("57P01" ); // Admin shutdown
DISCONNECTION_SQL_CODES.add("57P02" ); // Crash shutdown
DISCONNECTION_SQL_CODES.add("57P03" ); // Cannot connect now
DISCONNECTION_SQL_CODES.add("01002" ); // SQL92 disconnect error
DISCONNECTION_SQL_CODES.add("JZ0C0" ); // Sybase disconnect error
DISCONNECTION_SQL_CODES.add("JZ0C1" ); // Sybase disconnect error
}
/**
* Clones the given char [ ] if not null .
*
* @ param value may be null .
* @ return a cloned char [ ] or null .
*/
public static char [] clone(final char [] value) {
return value == null ? null : value.clone();
}
/**
* Clones the given { @ link Properties } without the standard " user " or " password " entries .
*
* @ param properties may be null
* @ return a clone of the input without the standard " user " or " password " entries .
* @ since 2 . 8 . 0
*/
public static Properties cloneWithoutCredentials(final Properties properties) {
if (properties != null ) {
final Properties temp = (Properties) properties.clone();
temp.remove(Constants.KEY_USER);
temp.remove(Constants.KEY_PASSWORD);
return temp;
}
return properties;
}
/**
* Closes the given { @ link AutoCloseable } and if an exception is caught , then calls { @ code exceptionHandler } .
*
* @ param autoCloseable The resource to close .
* @ param exceptionHandler Consumes exception thrown closing this resource .
* @ since 2 . 10 . 0
*/
public static void close(AutoCloseable autoCloseable, final Consumer<Exception> exceptionHandler) {
if (autoCloseable != null ) {
try {
autoCloseable.close();
} catch (final Exception e) {
if (exceptionHandler != null ) {
exceptionHandler.accept(e);
}
}
}
}
/**
* Closes the AutoCloseable ( which may be null ) .
*
* @ param autoCloseable an AutoCloseable , may be { @ code null }
* @ since 2 . 6 . 0
*/
public static void closeQuietly(final AutoCloseable autoCloseable) {
close(autoCloseable, null );
}
/**
* Closes the Connection ( which may be null ) .
*
* @ param connection a Connection , may be { @ code null }
* @ deprecated Use { @ link # closeQuietly ( AutoCloseable ) } .
*/
@Deprecated
public static void closeQuietly(final Connection connection) {
closeQuietly((AutoCloseable) connection);
}
/**
* Closes the ResultSet ( which may be null ) .
*
* @ param resultSet a ResultSet , may be { @ code null }
* @ deprecated Use { @ link # closeQuietly ( AutoCloseable ) } .
*/
@Deprecated
public static void closeQuietly(final ResultSet resultSet) {
closeQuietly((AutoCloseable) resultSet);
}
/**
* Closes the Statement ( which may be null ) .
*
* @ param statement a Statement , may be { @ code null } .
* @ deprecated Use { @ link # closeQuietly ( AutoCloseable ) } .
*/
@Deprecated
public static void closeQuietly(final Statement statement) {
closeQuietly((AutoCloseable) statement);
}
/**
* Gets a copy of SQL codes of fatal connection errors .
* < ul >
* < li > 57 P01 ( Admin shutdown ) < / li >
* < li > 57 P02 ( Crash shutdown ) < / li >
* < li > 57 P03 ( Cannot connect now ) < / li >
* < li > 01002 ( SQL92 disconnect error ) < / li >
* < li > JZ0C0 ( Sybase disconnect error ) < / li >
* < li > JZ0C1 ( Sybase disconnect error ) < / li >
* < / ul >
* @ return SQL codes of fatal connection errors .
* @ since 2 . 10 . 0
*/
public static Set<String> getDisconnectionSqlCodes() {
return new HashSet<>(DISCONNECTION_SQL_CODES);
}
/**
* Gets the correct i18n message for the given key .
*
* @ param key The key to look up an i18n message .
* @ return The i18n message .
*/
public static String getMessage(final String key) {
return getMessage(key, (Object[]) null );
}
/**
* Gets the correct i18n message for the given key with placeholders replaced by the supplied arguments .
*
* @ param key A message key .
* @ param args The message arguments .
* @ return An i18n message .
*/
public static String getMessage(final String key, final Object... args) {
final String msg = messages.getString(key);
if (args == null || args.length == 0 ) {
return msg;
}
final MessageFormat mf = new MessageFormat(msg);
return mf.format(args, new StringBuffer(), null ).toString();
}
static boolean isEmpty(final Collection<?> collection) {
return collection == null || collection.isEmpty();
}
static boolean isSecurityEnabled() {
return System.getSecurityManager() != null ;
}
/**
* Converts the given String to a char [ ] .
*
* @ param value may be null .
* @ return a char [ ] or null .
*/
public static char [] toCharArray(final String value) {
return value != null ? value.toCharArray() : null ;
}
/**
* Converts the given char [ ] to a String .
*
* @ param value may be null .
* @ return a String or null .
*/
public static String toString(final char [] value) {
return value == null ? null : String.valueOf(value);
}
public static void validateLifetime(final PooledObject<?> p, final Duration maxDuration) throws LifetimeExceededException {
if (maxDuration.compareTo(Duration.ZERO) > 0 ) {
final Duration lifetimeDuration = Duration.between(p.getCreateInstant(), Instant.now());
if (lifetimeDuration.compareTo(maxDuration) > 0 ) {
throw new LifetimeExceededException(Utils.getMessage("connectionFactory.lifetimeExceeded" , lifetimeDuration, maxDuration));
}
}
}
private Utils() {
// not instantiable
}
}
Messung V0.5 in Prozent C=91 H=99 G=94
¤ Dauer der Verarbeitung: 0.10 Sekunden
(vorverarbeitet am 2026-10-04)
¤
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