org.grails.plugins.codecs.Base64CodecExtensionMethods.groovy Maven / Gradle / Ivy

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/*
 * Copyright 2004-2023 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.grails.plugins.codecs

import java.nio.charset.StandardCharsets

import org.apache.commons.codec.binary.Base64
import org.codehaus.groovy.runtime.NullObject

/**
 * A codec that encodes and decodes Objects using Base64 encoding.
 *
 * @author Drew Varner
 */
class Base64CodecExtensionMethods {

    static Object encodeAsBase64(Object theTarget) {
        if (theTarget == null || theTarget instanceof NullObject) {
            return null
        }

        if (theTarget instanceof Byte[] || theTarget instanceof byte[]) {
            return new String(Base64.encodeBase64((byte[]) theTarget))
        }

        new String(Base64.encodeBase64(theTarget.toString().getBytes(StandardCharsets.UTF_8)))
    }

    static Object decodeBase64(Object theTarget) {
        if (theTarget == null || theTarget instanceof NullObject) {
            return null
        }

        if (theTarget instanceof Byte[] || theTarget instanceof byte[]) {
            return Base64.decodeBase64((byte[]) theTarget)
        }

        Base64.decodeBase64(theTarget.toString().getBytes(StandardCharsets.UTF_8))
    }

}