<?php

/**
 * LICENSE: 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
 * http://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.
 * 
 * PHP version 5
 *
 * @category  Microsoft
 * @package   WindowsAzure\Blob\Models
 * @author    Azure PHP SDK <azurephpsdk@microsoft.com>
 * @copyright 2012 Microsoft Corporation
 * @license   http://www.apache.org/licenses/LICENSE-2.0  Apache License 2.0
 * @link      https://github.com/windowsazure/azure-sdk-for-php
 */
 
namespace WindowsAzure\Blob\Models;
use WindowsAzure\Common\Internal\Resources;
use WindowsAzure\Common\Internal\Validate;
use WindowsAzure\Common\Internal\Utilities;

/**
 * Holds results of calling getBlobMetadata wrapper
 *
 * @category  Microsoft
 * @package   WindowsAzure\Blob\Models
 * @author    Azure PHP SDK <azurephpsdk@microsoft.com>
 * @copyright 2012 Microsoft Corporation
 * @license   http://www.apache.org/licenses/LICENSE-2.0  Apache License 2.0
 * @version   Release: 0.4.1_2015-03
 * @link      https://github.com/windowsazure/azure-sdk-for-php
 */
class GetBlobMetadataResult
{
    
    /**
     * @var \DateTime
     */
    private $_lastModified;
    
    /**
     * @var string
     */
    private $_etag;
    
    /**
     * @var array
     */
    private $_metadata;
    
    /**
     * Creates GetBlobMetadataResult from response headers.
     * 
     * @param array $headers  The HTTP response headers.
     * @param array $metadata The blob metadata array.
     * 
     * @return GetBlobMetadataResult
     */
    public static function create($headers, $metadata)
    {
        $result = new GetBlobMetadataResult();
        $date   = $headers[Resources::LAST_MODIFIED];
        $result->setLastModified(Utilities::rfc1123ToDateTime($date));
        $result->setETag($headers[Resources::ETAG]);
        $result->setMetadata(is_null($metadata) ? array() : $metadata);
        
        return $result;
    }
    
    /**
     * Gets blob lastModified.
     *
     * @return \DateTime.
     */
    public function getLastModified()
    {
        return $this->_lastModified;
    }

    /**
     * Sets blob lastModified.
     *
     * @param \DateTime $lastModified value.
     *
     * @return none.
     */
    public function setLastModified($lastModified)
    {
        Validate::isDate($lastModified);
        $this->_lastModified = $lastModified;
    }

    /**
     * Gets blob etag.
     *
     * @return string.
     */
    public function getETag()
    {
        return $this->_etag;
    }

    /**
     * Sets blob etag.
     *
     * @param string $etag value.
     *
     * @return none.
     */
    public function setETag($etag)
    {
        Validate::isString($etag, 'etag');
        $this->_etag = $etag;
    }
    
    /**
     * Gets blob metadata.
     *
     * @return array.
     */
    public function getMetadata()
    {
        return $this->_metadata;
    }

    /**
     * Sets blob metadata.
     *
     * @param string $metadata value.
     * 
     * @return none.
     */
    public function setMetadata($metadata)
    {
        $this->_metadata = $metadata;
    }
}