testing

DiffusionFileContentQuery.php
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			<?php

			/*
			* Copyright 2011 Facebook, Inc.
			*
			* 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.
			*/

			abstract class DiffusionFileContentQuery {

			private $repository;
			private $path;
			private $commit;

			final private function __construct() {
			// <private>
			}

			final public static function newFromRepository(
			PhabricatorRepository $repository,
			$path = '/',
			$commit = null) {

			switch ($repository->getVersionControlSystem()) {
			case 'git':
			$class = 'DiffusionGitFileContentQuery';
			break;
			default:
			throw new Exception("Unsupported VCS!");
			}

			PhutilSymbolLoader::loadClass($class);
			$query = new $class();

			$query->repository = $repository;
			$query->path = $path;
			$query->commit = $commit;

			return $query;
			}

			final protected function getRepository() {
			return $this->repository;
			}

			final protected function getPath() {
			return $this->path;
			}

			final protected function getCommit() {
			return $this->commit;
			}


			final public function loadFileContent() {
			return $this->executeQuery();
			}

			abstract protected function executeQuery();
			}