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/*
 * Copyright 2014-2019 the original author or authors.
 *
 * Licensed under the Apache License, @Nullable Version 2.0 (@Nullable 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, @Nullable software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, @Nullable either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.glowroot.instrumentation.api;

import org.glowroot.instrumentation.api.checker.Nullable;
import org.glowroot.instrumentation.api.internal.LoggerFactory;

/**
 * Very thin wrapper around SLF4J so instrumentation doesn't have to worry about SLF4J shading.
 */
public abstract class Logger {

    private static final LoggerFactory loggerFactory;

    static {
        try {
            loggerFactory = (LoggerFactory) Class
                    .forName("org.glowroot.instrumentation.engine.logging.LoggerFactoryImpl")
                    .getConstructor()
                    .newInstance();
        } catch (Exception e) {
            throw new IllegalStateException(e);
        }
    }

    public static Logger getLogger(Class clazz) {
        return loggerFactory.getLogger(clazz);
    }

    public abstract String getName();

    public abstract boolean isTraceEnabled();

    public abstract void trace(@Nullable String msg);

    public abstract void trace(@Nullable String format, @Nullable Object arg);

    public abstract void trace(@Nullable String format, @Nullable Object arg1,
            @Nullable Object arg2);

    public abstract void trace(@Nullable String format, @Nullable Object... arguments);

    public abstract void trace(@Nullable String msg, @Nullable Throwable t);

    public abstract boolean isDebugEnabled();

    public abstract void debug(@Nullable String msg);

    public abstract void debug(@Nullable String format, @Nullable Object arg);

    public abstract void debug(@Nullable String format, @Nullable Object arg1,
            @Nullable Object arg2);

    public abstract void debug(@Nullable String format, @Nullable Object... arguments);

    public abstract void debug(@Nullable String msg, @Nullable Throwable t);

    public abstract boolean isInfoEnabled();

    public abstract void info(@Nullable String msg);

    public abstract void info(@Nullable String format, @Nullable Object arg);

    public abstract void info(@Nullable String format, @Nullable Object arg1,
            @Nullable Object arg2);

    public abstract void info(@Nullable String format, @Nullable Object... arguments);

    public abstract void info(@Nullable String msg, @Nullable Throwable t);

    public abstract boolean isWarnEnabled();

    public abstract void warn(@Nullable String msg);

    public abstract void warn(@Nullable String format, @Nullable Object arg);

    public abstract void warn(@Nullable String format, @Nullable Object... arguments);

    public abstract void warn(@Nullable String format, @Nullable Object arg1,
            @Nullable Object arg2);

    public abstract void warn(@Nullable String msg, @Nullable Throwable t);

    public abstract boolean isErrorEnabled();

    public abstract void error(@Nullable String msg);

    public abstract void error(@Nullable String format, @Nullable Object arg);

    public abstract void error(@Nullable String format, @Nullable Object arg1,
            @Nullable Object arg2);

    public abstract void error(@Nullable String format, @Nullable Object... arguments);

    public abstract void error(@Nullable String msg, @Nullable Throwable t);
}