n.logging; public abstract interface Log { public abstract boolean isDebugEnabled(); public abstract void debug(CharSequence); public abstract void debug(CharSequence, Throwable); public abstract void debug(Throwable); public abstract boolean isInfoEnabled(); public abstract void info(CharSequence); public abstract void info(CharSequence, Throwable); public abstract void info(Throwable); public abstract boolean isWarnEnabled(); public abstract void warn(CharSequence); public abstract void warn(CharSequence,...

        return DEBUG.equals(logLevel);
    }

    /**
     * Checks if the log level is INFO.
     *
     * @return true if INFO, false otherwise
     */
    public boolean isInfoEnabled() {
        return INFO.equals(logLevel);
    }

    /**
     * Checks if the log level is WARN.
     *
     * @return true if WARN, false otherwise
     */
    public boolean isWarnEnabled() {

     *
     * @param error
     */
    void debug(Throwable error);

    /**
     * @return true if the <b>info</b> error level is enabled
     */
    boolean isInfoEnabled();

    /**
     * Send a message to the user in the <b>info</b> error level.
     *
     * @param content
     */
    void info(CharSequence content);

    /**

                } finally {
                    EntityUtils.consumeQuietly(httpEntity);
                }
            });
        });

        httpClient = closeableHttpClient;
        if (logger.isInfoEnabled()) {
            logger.info("HTTP client initialized successfully: userAgent={}, maxTotal={}, defaultMaxPerRoute={}", userAgent,
                    maxTotalConnections, maxConnectionsPerRoute);
        }
    }

        appendOsStats(buf);
        appendProcessStats(buf);
        appendJvmStats(buf);
        appendFesenStats(buf);

        appendTimestamp(buf);
        buf.append('}');

        if (logger.isInfoEnabled()) {
            logger.info(buf.toString());
        }
    }

    private void appendJvmStats(final StringBuilder buf) {
        buf.append("\"jvm\":{");
        final JvmStats jvmStats = JvmStats.jvmStats();

     * Registers an SSO authenticator with this manager.
     *
     * @param authenticator The SSO authenticator to register
     */
    public void register(final SsoAuthenticator authenticator) {
        if (logger.isInfoEnabled()) {
            logger.info("Loaded SsoAuthenticator: {}", authenticator.getClass().getSimpleName());
        }
        authenticatorList.add(authenticator);
    }

            return asHtml(virtualHost(path_Login_NewpasswordJsp));
        } catch (final LoginFailureException lfe) {
            if (logger.isInfoEnabled()) {
                logger.info("Login failed for user: username={}, reason={}", username, lfe.getMessage());
            }

    this.settings = Objects.requireNonNull(settings, "settings must not be null");
}
```

**Logging with Context:**
```java
if (logger.isInfoEnabled()) {
    logger.info("Creating suggest index: index={}, searchAlias={}, updateAlias={}",
                indexName, getSearchAlias(index), getUpdateAlias(index));
}
```

**Exception Handling:**
```java

                    if (logger.isInfoEnabled()) {
                        logger.info("Cpu Load {}% is greater than {}%. {} waiting thread(s). {} thread is timed out.", current, percent,
                                waitingThreadNames.size(), threadName);
                    }
                    return false;
                }
                if (logger.isInfoEnabled()) {

    void debug(Supplier<String> content);

    void debug(Supplier<String> content, Throwable error);

    /**
     * {@return true if the <b>info</b> error level is enabled}
     */
    boolean isInfoEnabled();

    /**
     * Sends a message to the user in the <b>info</b> error level.
     *
     * @param content the message to log
     */
    void info(CharSequence content);

    /**