Added encoding class

Author: mauriciotogneri

README.md

@@ -23,7 +23,7 @@ and the dependency:
 <dependency>
     <groupId>com.mauriciotogneri</groupId>
     <artifactId>javautils</artifactId>
-    <version>1.5.0</version>
+    <version>1.7.0</version>
 </dependency>
 ```
 
@@ -32,6 +32,6 @@ or if you use Gradle:
 ```groovy
 dependencies
 {
-    compile 'com.mauriciotogneri:javautils:1.5.0'
+    compile 'com.mauriciotogneri:javautils:1.7.0'
 }
 ```

pom.xml

@@ -7,7 +7,7 @@
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.mauriciotogneri</groupId>
     <artifactId>javautils</artifactId>
-    <version>1.5.0</version>
+    <version>1.7.0</version>
     <name>Java Utils</name>
     <packaging>jar</packaging>
     <url>https://github.com/mauriciotogneri/java-utils</url>

src/main/java/com/mauriciotogneri/javautils/Encoding.java

@@ -0,0 +1,58 @@
+package com.mauriciotogneri.javautils;
+
+import java.io.UnsupportedEncodingException;
+import java.net.URLDecoder;
+import java.net.URLEncoder;
+import java.security.MessageDigest;
+import java.security.NoSuchAlgorithmException;
+
+public class Encoding
+{
+    private static final String UTF8 = "UTF-8";
+
+    public static String toString(byte[] bytes) throws UnsupportedEncodingException
+    {
+        return new String(bytes, UTF8);
+    }
+
+    public static byte[] toByteArray(String text) throws UnsupportedEncodingException
+    {
+        return text.getBytes(UTF8);
+    }
+
+    public static String urlEncode(String text) throws Exception
+    {
+        return URLEncoder.encode(text, UTF8);
+    }
+
+    public static String urlDecode(String text) throws Exception
+    {
+        return URLDecoder.decode(text, UTF8);
+    }
+
+    public static String sha256(String input) throws NoSuchAlgorithmException
+    {
+        return hash("SHA-256", input);
+    }
+
+    public static String sha512(String input) throws NoSuchAlgorithmException
+    {
+        return hash("SHA-512", input);
+    }
+
+    public static String hash(String algorithm, String input) throws NoSuchAlgorithmException
+    {
+        MessageDigest digest = MessageDigest.getInstance(algorithm);
+        digest.update(input.getBytes());
+        byte messageDigest[] = digest.digest();
+
+        StringBuilder hexString = new StringBuilder(messageDigest.length * 2);
+
+        for (byte element : messageDigest)
+        {
+            hexString.append(String.format("%02x", element));
+        }
+
+        return hexString.toString();
+    }
+}