Example usage for org.apache.wicket.util.crypt Base64 isArrayByteBase64

Introduction

In this page you can find the example usage for org.apache.wicket.util.crypt Base64 isArrayByteBase64.

Prototype

public static boolean isArrayByteBase64(final byte[] arrayOctet) 

Source Link

Document

Tests a given byte array to see if it contains only valid characters within the Base64 alphabet.

Usage

From source file:org.xaloon.wicket.util.UrlUtils.java

License:Apache License

/**
 * Decodes provided string from base64/*w w  w .j a va  2  s . c  o m*/
 * 
 * @param value
 * @param preffix
 * @return decoded string from base64
 */
public static String decodeBase64(String value, String preffix) {
    if (StringUtils.isEmpty(value)) {
        return null;
    }
    if (StringUtils.isNotEmpty(preffix) && value.contains(preffix)) {
        value = value.substring(0, value.indexOf(preffix));
    }
    byte[] bytes = value.getBytes();
    if (!Base64.isArrayByteBase64(bytes)) {
        return value;
    }
    return new String(Base64.decodeBase64(bytes));
}

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