| /* |
| * 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.log4j.spi; |
| |
| import org.apache.log4j.ULogger; |
| |
| /** |
| * TODO: is this still needed? |
| * A no operation (NOP) implementation of {@link ULogger}. |
| * |
| * @author Ceki Gülcü |
| */ |
| public final class NOPULogger implements ULogger { |
| |
| /** |
| * The unique instance of NOPLogger. |
| */ |
| public static final NOPULogger NOP_LOGGER = new NOPULogger(); |
| |
| /** |
| * There is no point in people creating multiple instances of NullLogger. |
| * Hence, the private access modifier. |
| */ |
| private NOPULogger() { |
| super(); |
| } |
| |
| /** |
| * Get instance. |
| * |
| * @param name logger name. |
| * @return logger. |
| */ |
| public static NOPULogger getLogger(final String name) { |
| return NOP_LOGGER; |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public boolean isDebugEnabled() { |
| return false; |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public void debug(final Object msg) { |
| // NOP |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public void debug(final Object parameterizedMsg, final Object param1) { |
| // NOP |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public void debug(final String parameterizedMsg, final Object param1, final Object param2) { |
| // NOP |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public void debug(final Object msg, final Throwable t) { |
| // NOP |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public boolean isInfoEnabled() { |
| // NOP |
| return false; |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public void info(final Object msg) { |
| // NOP |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public void info(final Object parameterizedMsg, final Object param1) { |
| // NOP |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public void info(final String parameterizedMsg, final Object param1, final Object param2) { |
| // NOP |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public void info(final Object msg, final Throwable t) { |
| // NOP |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public boolean isWarnEnabled() { |
| return false; |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public void warn(final Object msg) { |
| // NOP |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public void warn(final Object parameterizedMsg, final Object param1) { |
| // NOP |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public void warn(final String parameterizedMsg, final Object param1, final Object param2) { |
| // NOP |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public void warn(final Object msg, final Throwable t) { |
| // NOP |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public boolean isErrorEnabled() { |
| return false; |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public void error(final Object msg) { |
| // NOP |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public void error(final Object parameterizedMsg, final Object param1) { |
| // NOP |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public void error(final String parameterizedMsg, final Object param1, final Object param2) { |
| // NOP |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public void error(final Object msg, final Throwable t) { |
| // NOP |
| } |
| } |