<?php

/**
 * Copyright 2010 Kousuke Ebihara
 *
 * 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  VersionControl
 * @package   VersionControl_Git
 * @author    Kousuke Ebihara <ebihara@php.net>
 * @copyright 2010 Kousuke Ebihara
 * @license   http://www.apache.org/licenses/LICENSE-2.0  Apache License 2.0
 */

/**
 * The OO interface for blob object
 *
 * @category  VersionControl
 * @package   VersionControl_Git
 * @author    Kousuke Ebihara <ebihara@php.net>
 * @copyright 2010 Kousuke Ebihara
 * @license   http://www.apache.org/licenses/LICENSE-2.0  Apache License 2.0
 */
class VersionControl_Git_Object_Blob extends VersionControl_Git_Object
{
    /**
     * The contents of this object
     *
     * @var string
     */
    protected $content;

    /**
     * Fetch the substance of this object
     *
     * @return VersionControl_Git_Object The "$this" object for method chain
     */
    public function fetch()
    {
        $command = $this->git->getCommand('cat-file')
            ->setOption('p')
            ->addArgument($this->id);

        $this->content = trim($command->execute());

        return $this;
    }

    /**
     * Get the contents of this object
     *
     * @return string
     */
    public function getContent()
    {
        return $this->content;
    }
}