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Posted to log4j-dev@logging.apache.org by ce...@apache.org on 2004/06/07 19:25:39 UTC
cvs commit: logging-log4j/src/java/org/apache/ugli NullLoggerRepository.java LoggerRepository.java Logger.java NullLogger.java
ceki 2004/06/07 10:25:39
Added: src/java/org/apache/ugli NullLoggerRepository.java
LoggerRepository.java Logger.java NullLogger.java
Log:
Started work on UGLI.
Revision Changes Path
1.1 logging-log4j/src/java/org/apache/ugli/NullLoggerRepository.java
Index: NullLoggerRepository.java
===================================================================
/*
* Copyright 1999,2004 The Apache Software Foundation.
*
* 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.
*/
package org.apache.ugli;
/**
*
* The NullLoggerRepository returns instances of {@link NullLogger}.
* @author Ceki Gücü
*/
public class NullLoggerRepository implements LoggerRepository {
/* Always returns a {@link NullLogger}.
* @see org.apache.ugli.LoggerRepository#getLogger(java.lang.String)
*/
public Logger getLogger(String name) {
return NullLogger.NULL_LOGGER;
}
/* Always returns a {@link NullLogger}.
* @see org.apache.ugli.LoggerRepository#getLogger(java.lang.String, java.lang.String)
*/
public Logger getLogger(String domainName, String subDomainName) {
return NullLogger.NULL_LOGGER;
}
/* Always returns a {@link NullLogger}.
* @see org.apache.ugli.LoggerRepository#getLogger(java.lang.Class)
*/
public Logger getLogger(Class clazz) {
return NullLogger.NULL_LOGGER;
}
/* Always returns a {@link NullLogger}.
* @see org.apache.ugli.LoggerRepository#getLogger(java.lang.Class, java.lang.String)
*/
public Logger getLogger(Class clazz, String subDomainName) {
return NullLogger.NULL_LOGGER;
}
/* Always returns a {@link NullLogger}.
* @see org.apache.ugli.LoggerRepository#close()
*/
public void close() {
// NOP
}
}
1.1 logging-log4j/src/java/org/apache/ugli/LoggerRepository.java
Index: LoggerRepository.java
===================================================================
/*
* Copyright 1999,2004 The Apache Software Foundation.
*
* 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.
*/
package org.apache.ugli;
/**
* A LoggerRepository is an application specific object that returns
* {@link Logger} instances.
*
* @author Ceki Gülcü
*/
public interface LoggerRepository {
public Logger getLogger(String name);
public Logger getLogger(String domainName, String subDomainName);
public Logger getLogger(Class clazz);
public Logger getLogger(Class clazz, String subDomainName);
public void close();
}
1.1 logging-log4j/src/java/org/apache/ugli/Logger.java
Index: Logger.java
===================================================================
/*
* Copyright 1999,2004 The Apache Software Foundation.
*
* 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.
*/
package org.apache.ugli;
/**
*
* The main user inteface to logging. It is expected that logging takes places
* through concerete implemetations of the Logger interface.
*
*
* @author Ceki Gülcü
*/
public interface Logger {
/**
* Is the logger instance enabled for the DEBUG level?
* @return
*/
public boolean isDebugEnabled();
//
/**
* Log a message object with the DEBUG level.
* @param msg - the message object to be logged
*/
public void debug(Object msg);
/**
* Log a parameterized message object at the DEBUG level.
*
* <p>This form is useful in avoiding the superflous object creation
* problem when invoking this method while it is disabled.
* </p>
* @param parameterizedMsg - the parameterized message object
* @param param1 - the parameter
*/
public void debug(Object parameterizedMsg, Object param1);
/**
* Log a parameterized message object at the DEBUG level.
*
* <p>This form is useful in avoiding the superflous object creation
* problem when invoking this method while it is disabled.
* </p>
* @param parameterizedMsg - the parameterized message object
* @param param1 - the first parameter
* @param param2 - the second parameter
*/
public void debug(Object parameterizedMsg, Object param1, Object param2);
public void debug(Object msg, Throwable t);
public boolean isInfoEnabled();
public void info(Object msg);
public void info(Object parameterizedMsg, Object param1);
public void info(Object parameterizedMsg, Object param1, Object param2);
public void info(Object msg, Throwable t);
public boolean isWarnEnabled();
public void warn(Object msg);
public void warn(Object parameterizedMsg, Object param1);
public void warn(Object parameterizedMsg, Object param1, Object param2);
public void warn(Object msg, Throwable t);
public boolean isErrorEnabled();
public void error(Object msg);
public void error(Object parameterizedMsg, Object param1);
public void error(Object parameterizedMsg, Object param1, Object param2);
public void error(Object msg, Throwable t);
}
1.1 logging-log4j/src/java/org/apache/ugli/NullLogger.java
Index: NullLogger.java
===================================================================
/*
* Copyright 1999,2004 The Apache Software Foundation.
*
* 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.
*/
package org.apache.ugli;
/**
* A no operation (NOP) implementation of {@link Logger}.
*
* @author Ceki Gülcü
*/
public class NullLogger implements Logger {
/**
* The unique instance of NullLogger.
*/
public final static NullLogger NULL_LOGGER = new NullLogger();
/**
* There is no point in people creating multiple instances of NullLogger.
* Hence, the private access modifier.
*/
private NullLogger() {
}
/* Always returns false.
*
* @see org.apache.ugli.Logger#isDebugEnabled()
*/
public boolean isDebugEnabled() {
return false;
}
/* A NOP implementation.
* @see org.apache.ugli.Logger#debug(java.lang.Object)
*/
public void debug(Object msg) {
// NOP
}
/* A NOP implementation.
* @see org.apache.ugli.Logger#debug(java.lang.Object, java.lang.Object)
*/
public void debug(Object parameterizedMsg, Object param1) {
// NOP
}
/* A NOP implementation.
* @see org.apache.ugli.Logger#debug(java.lang.Object, java.lang.Object, java.lang.Object)
*/
public void debug(Object parameterizedMsg, Object param1, Object param2) {
// NOP
}
/* A NOP implementation.
* @see org.apache.ugli.Logger#debug(java.lang.Object, java.lang.Throwable)
*/
public void debug(Object msg, Throwable t) {
// NOP
}
/* Always returns false.
* @see org.apache.ugli.Logger#isInfoEnabled()
*/
public boolean isInfoEnabled() {
// NOP
return false;
}
/* A NOP implementation.
* @see org.apache.ugli.Logger#info(java.lang.Object)
*/
public void info(Object msg) {
// NOP
}
/* A NOP implementation.
* @see org.apache.ugli.Logger#info(java.lang.Object, java.lang.Object)
*/
public void info(Object parameterizedMsg, Object param1) {
// NOP
}
/* A NOP implementation.
* @see org.apache.ugli.Logger#info(java.lang.Object, java.lang.Object, java.lang.Object)
*/
public void info(Object parameterizedMsg, Object param1, Object param2) {
// NOP
}
/* A NOP implementation.
* @see org.apache.ugli.Logger#info(java.lang.Object, java.lang.Throwable)
*/
public void info(Object msg, Throwable t) {
// NOP
}
/* Always returns false.
* @see org.apache.ugli.Logger#isWarnEnabled()
*/
public boolean isWarnEnabled() {
return false;
}
/* A NOP implementation.
* @see org.apache.ugli.Logger#warn(java.lang.Object)
*/
public void warn(Object msg) {
// NOP
}
/* A NOP implementation.
* @see org.apache.ugli.Logger#warn(java.lang.Object, java.lang.Object)
*/
public void warn(Object parameterizedMsg, Object param1) {
// NOP
}
/* A NOP implementation.
* @see org.apache.ugli.Logger#warn(java.lang.Object, java.lang.Object, java.lang.Object)
*/
public void warn(Object parameterizedMsg, Object param1, Object param2) {
// NOP
}
/* A NOP implementation.
* @see org.apache.ugli.Logger#warn(java.lang.Object, java.lang.Throwable)
*/
public void warn(Object msg, Throwable t) {
// NOP
}
/* Always returns false.
* @see org.apache.ugli.Logger#isErrorEnabled()
*/
public boolean isErrorEnabled() {
return false;
}
/* A NOP implementation.
* @see org.apache.ugli.Logger#error(java.lang.Object)
*/
public void error(Object msg) {
// NOP
}
/* A NOP implementation.
* @see org.apache.ugli.Logger#error(java.lang.Object, java.lang.Object)
*/
public void error(Object parameterizedMsg, Object param1) {
// NOP
}
/* A NOP implementation.
* @see org.apache.ugli.Logger#error(java.lang.Object, java.lang.Object, java.lang.Object)
*/
public void error(Object parameterizedMsg, Object param1, Object param2) {
// NOP
}
/* A NOP implementation.
* @see org.apache.ugli.Logger#error(java.lang.Object, java.lang.Throwable)
*/
public void error(Object msg, Throwable t) {
// NOP
}
}
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