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The Pax Logging API Library is to allow for the Pax Logging Service to be reloaded without stopping the many dependent bundles. It also contains the OSGi Log Service API and the Knopflerfish Log API.

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/*
 * Copyright 2005 Niclas Hedhman.
 *
 * 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.ops4j.pax.logging;

public interface PaxLogger
{
    int LEVEL_TRACE = 0;
    int LEVEL_DEBUG = 1;
    int LEVEL_INFO = 2;
    int LEVEL_WARNING = 3;
    int LEVEL_ERROR = 4;

    boolean isTraceEnabled();
    boolean isDebugEnabled();
    boolean isWarnEnabled();
    boolean isInfoEnabled();
    boolean isErrorEnabled();
    boolean isFatalEnabled();

    void trace( String message, Throwable t );
    void debug( String message, Throwable t );
    void inform( String message, Throwable t );
    void warn( String message, Throwable t );
    void error( String message, Throwable t );
    void fatal( String message, Throwable t );

    void trace( String message, Throwable t, String fqcn);
    void debug( String message, Throwable t, String fqcn);
    void inform( String message, Throwable t, String fqcn);
    void warn( String message, Throwable t, String fqcn);
    void error( String message, Throwable t, String fqcn);
    void fatal( String message, Throwable t, String fqcn);

    int getLogLevel();

    String getName();
    
    PaxContext getPaxContext();
}