README

描述

php-WebHDFS 是一个针对 WebHDFS 的 PHP 客户端。

依赖项

• PHP
• cURL

通过 composer 安装

composer require dreamfactory/php-webhdfs

用法

• 文件和目录操作
  • 创建并写入文件
  • 直接创建并写入内容到文件
  • 追加到文件
  • 连接文件
  • 打开并读取文件
  • 创建目录
  • 创建符号链接
  • 重命名文件/目录
  • 删除文件/目录
  • 文件/目录状态
  • 列出目录
• 其他文件系统操作
  • 获取目录内容摘要
  • 获取文件校验和
  • 获取主目录
  • 设置权限
  • 设置所有者
  • 设置副本因子
  • 设置访问或修改时间

文件和目录操作

创建并写入文件

hdfs = new WebHDFS('mynamenode.hadoop.com', '50070', 'hadoop-username');
$hdfs->create('user/hadoop-username/new-file.txt', 'local-file.txt');

直接创建并写入内容到文件

hdfs = new WebHDFS('mynamenode.hadoop.com', '50070', 'hadoop-username');
$hdfs->createWithData('user/hadoop-username/new-file.txt', 'content');

追加到文件

$hdfs = new WebHDFS('mynamenode.hadoop.com', '50070', 'hadoop-username');
$hdfs->append('user/hadoop-username/file-to-append-to.txt', 'local-file.txt');

连接文件

$hdfs = new WebHDFS('mynamenode.hadoop.com', '50070', 'hadoop-username');
$hdfs->concat('user/hadoop-username/concatenated-file.txt', '/test/file1,/test/file2,/test/file3');

打开并读取文件

$hdfs = new WebHDFS('mynamenode.hadoop.com', '50070', 'hadoop-username');
$response = $hdfs->open('user/hadoop-username/file.txt');

创建目录

$hdfs = new WebHDFS('mynamenode.hadoop.com', '50070', 'hadoop-username');
$hdfs->mkdirs('user/hadoop-username/new/directory/structure');

创建符号链接

$hdfs = new WebHDFS('mynamenode.hadoop.com', '50070', 'hadoop-username');
$hdfs->createSymLink('user/hadoop-username/file.txt', '/user/hadoop-username/symlink-to-file.txt');

重命名文件/目录

$hdfs = new WebHDFS('mynamenode.hadoop.com', '50070', 'hadoop-username');
$hdfs->rename('user/hadoop-username/file.txt', '/user/hadoop-username/renamed-file.txt');

删除文件/目录

hdfs = new WebHDFS('mynamenode.hadoop.com', '50070', 'hadoop-username');
$hdfs->delete('user/hadoop-username/file.txt');

文件/目录状态

$hdfs = new WebHDFS('mynamenode.hadoop.com', '50070', 'hadoop-username');
$response = $hdfs->getFileStatus('user/hadoop-username/file.txt');

列出目录

$hdfs = new WebHDFS('mynamenode.hadoop.com', '50070', 'hadoop-username');
$response = $hdfs->listStatus('user/hadoop-username/');

其他文件系统操作

获取目录内容摘要

$hdfs = new WebHDFS('mynamenode.hadoop.com', '50070', 'hadoop-username');
$response = $hdfs->getContentSummary('user/hadoop-username/');

获取文件校验和

$hdfs = new WebHDFS('mynamenode.hadoop.com', '50070', 'hadoop-username');
$response = $hdfs->getFileChecksum('user/hadoop-username/file.txt');

获取主目录

$hdfs = new WebHDFS('mynamenode.hadoop.com', '50070', 'hadoop-username');
$response = $hdfs->getHomeDirectory();

设置权限

$hdfs = new WebHDFS('mynamenode.hadoop.com', '50070', 'hadoop-username');
$hdfs->setPermission('user/hadoop-username/file.txt', '777');

设置所有者

$hdfs = new WebHDFS('mynamenode.hadoop.com', '50070', 'hadoop-username');
$hdfs->setOwner('user/hadoop-username/file.txt', 'other-user');

设置副本因子

$hdfs = new WebHDFS('mynamenode.hadoop.com', '50070', 'hadoop-username');
$hdfs->setReplication('user/hadoop-username/file.txt', '2');

设置访问或修改时间

$hdfs = new WebHDFS('mynamenode.hadoop.com', '50070', 'hadoop-username');
$response = $hdfs->setTimes('user/hadoop-username/file.txt');