static

in src/main/java/org/apache/commons/logging/LogSource.java [76:130]

• 46 lines of code
• 13 McCabe index (conditional complexity)

    static {

        // Is Log4J Available?
        try {
            log4jIsAvailable = null != Class.forName("org.apache.log4j.Logger");
        } catch (final Throwable t) {
            log4jIsAvailable = false;
        }

        // Is JDK 1.4 Logging Available?
        try {
            jdk14IsAvailable = null != Class.forName("java.util.logging.Logger") &&
                               null != Class.forName("org.apache.commons.logging.impl.Jdk14Logger");
        } catch (final Throwable t) {
            jdk14IsAvailable = false;
        }

        // Set the default Log implementation
        String name = null;
        try {
            name = System.getProperty("org.apache.commons.logging.log");
            if (name == null) {
                name = System.getProperty("org.apache.commons.logging.Log");
            }
        } catch (final Throwable t) {
        }
        if (name != null) {
            try {
                setLogImplementation(name);
            } catch (final Throwable t) {
                try {
                    setLogImplementation("org.apache.commons.logging.impl.NoOpLog");
                } catch (final Throwable u) {
                    // ignored
                }
            }
        } else {
            try {
                if (log4jIsAvailable) {
                    setLogImplementation("org.apache.commons.logging.impl.Log4JLogger");
                } else if (jdk14IsAvailable) {
                    setLogImplementation("org.apache.commons.logging.impl.Jdk14Logger");
                } else {
                    setLogImplementation("org.apache.commons.logging.impl.NoOpLog");
                }
            } catch (final Throwable t) {
                try {
                    setLogImplementation("org.apache.commons.logging.impl.NoOpLog");
                } catch (final Throwable u) {
                    // ignored
                }
            }
        }

    }