Server utilities

Server utilities library for java server applications.

The minimum supported version is Java 8.

This library tries to be lightweight without having too many transitive dependencies.

Things you can do with this library:

Utility classes

• AESUtils -> Easy AES encryption and decryption.
• RSAUtils -> Easy RSA encryption and decryption.
• DateUtils -> Easy manipulation of date objects and date strings.
• GeneratorUtils -> Generate placeholder values and secure strings.
• JsonUtils -> Use ObjectMapper without the need of error handling explicitly.
• LoggingUtils -> Prevent log forging on strings, or mask values.
• ReflectionUtils -> Easy use of reflection API to get values of objects.
• StringUtils -> Check if objects are blank on java 8, capitalize the first letter of a string, repeat a string, truncate it, or switch its case.
• UriUtils -> Join paths, get parts of a uri without having to cast it to URI explicitly, get the query parameters as a map, or update only one query param.
• ValidationUtils -> Validate Strings to be in valid format for emails, date, json, url, uuid, DNI, NIE, or NIF.
• FunctionalUtils -> Perform conditional checks with a more fluent API, or chain them.

Helper classes

• Duo and Trio -> Similar to Pair in Spring, or objects that hold 2 or 3 additional objects inside them.
• WrapperList -> A wrapper over ArrayList for easier access to the last index of the list, the first and last elements, list creation, and other sugar syntax methods.

Constants

• CurrencyChars -> Keeps the unicode chars for common currencies.
• GreekChars -> Keeps the unicode chars for greek letters.
• Letters -> Keeps the whole abecedary as an enum that you can use to avoid having to specify 1-letter constants on your classes.
• Numbers -> Same as letters, but for numbers up to 10.
• SpecialChars -> Holds special characters to used as constants, so that you can use them at any time, including empty string and space.
• HttpHeaderKeys -> Holds most common Http header keys.
• AuthHeaderPrefixes -> Holds most commonly used authorization prefixes, like "Bearer ".
• MimeTypes -> Holds most common MimeTypes for headers.

Installation

You just need to add the dependency to your pom:

<dependency>
    <groupId>io.github.dokkaltek</groupId>
    <artifactId>server-utilities</artifactId>
    <version>1.1.0</version>
</dependency>