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/*
 * Copyright (c) "Neo4j"
 * Neo4j Sweden AB [https://neo4j.com]
 *
 * 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.neo4j.driver.internal.logging;

import java.util.Objects;
import org.neo4j.driver.Logger;

class Slf4jLogger implements Logger {
    private final org.slf4j.Logger delegate;

    Slf4jLogger(org.slf4j.Logger delegate) {
        this.delegate = Objects.requireNonNull(delegate);
    }

    @Override
    public void error(String message, Throwable cause) {
        if (delegate.isErrorEnabled()) {
            delegate.error(message, cause);
        }
    }

    @Override
    public void info(String message, Object... params) {
        if (delegate.isInfoEnabled()) {
            delegate.info(formatMessage(message, params));
        }
    }

    @Override
    public void warn(String message, Object... params) {
        if (delegate.isWarnEnabled()) {
            delegate.warn(formatMessage(message, params));
        }
    }

    @Override
    public void warn(String message, Throwable cause) {
        if (delegate.isWarnEnabled()) {
            delegate.warn(message, cause);
        }
    }

    @Override
    public void debug(String message, Object... params) {
        if (isDebugEnabled()) {
            delegate.debug(formatMessage(message, params));
        }
    }

    @Override
    public void debug(String message, Throwable throwable) {
        if (isDebugEnabled()) {
            delegate.debug(message, throwable);
        }
    }

    @Override
    public void trace(String message, Object... params) {
        if (isTraceEnabled()) {
            delegate.trace(formatMessage(message, params));
        }
    }

    @Override
    public boolean isTraceEnabled() {
        return delegate.isTraceEnabled();
    }

    @Override
    public boolean isDebugEnabled() {
        return delegate.isDebugEnabled();
    }

    /**
     * Creates a fully formatted message. Such formatting is needed because driver uses {@link String#format(String, Object...)} parameters in message
     * templates, i.e. '%s' or '%d' while SLF4J uses '{}'. Thus this logger passes fully formatted messages to SLF4J.
     *
     * @param messageTemplate the message template.
     * @param params the parameters.
     * @return fully formatted message string.
     */
    private static String formatMessage(String messageTemplate, Object... params) {
        return String.format(messageTemplate, params);
    }
}




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