Code alarm processing & Fix the bug #3192,#3167

[liuweiGit]

Describe what this PR does / why we need it

Cleared DefaultClusterTokenClient. Java code alarm & repair LogBase. Java bug modify test cases, Repair FileWritableDataSource. Java bug modified FileDataSourceInit. Java increase test code

Does this pull request fix one issue?

#3192 #3167

Describe how you did it

Some code has been modified, see the following code for details

LogBase.java

Private constructors

Before the repair code：

    String logLevelString = properties.getProperty(LOG_LEVEL);
    if (logLevelString != null && (logLevelString = logLevelString.trim()).length() > 0) {
        try {
            logLevel = Level.parse(logLevelString);
        } catch (IllegalArgumentException e) {
            System.out.println("Log level : " + logLevel + " is invalid. Use default : " + LOG_DEFAULT_LEVEL.toString());
        }
    }
    System.out.println("INFO: Sentinel log level is: " + logLevel);

After the repair code：

    String logLevelString = properties.getProperty(LOG_LEVEL);
    if (logLevelString != null && (logLevelString = logLevelString.trim()).length() > 0) {
        try {
            logLevel = Level.parse(logLevelString);
        } catch (IllegalArgumentException e) {
            System.out.printf("Log level : %s is invalid. Use default : %s%n", logLevelString, logLevel);
        }
    }
    System.out.printf("INFO: Sentinel log level is: %s%n", logLevel);

FileWritableDataSource.java

Before the repair code：

public FileWritableDataSource(File file, Converter<T, String> configEncoder) {
    this(file, configEncoder, DEFAULT_CHARSET);
}

After the repair code：

public FileWritableDataSource(File file, Converter<T, String> configEncoder) {
    this(file, configEncoder, DEFAULT_CHARSET);
    File dir = file.getParentFile();
    if (!Files.exists(dir.toPath())) {
        dir.mkdirs();
    }
}

Describe how to verify it

LogBaseTest.testLoadProperties()
FileDataSourceInit.main();

Special notes for reviews

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