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Python HadoopFilesystem.copy_from_local方法代码示例

本文整理汇总了Python中mrjob.fs.hadoop.HadoopFilesystem.copy_from_local方法的典型用法代码示例。如果您正苦于以下问题:Python HadoopFilesystem.copy_from_local方法的具体用法?Python HadoopFilesystem.copy_from_local怎么用?Python HadoopFilesystem.copy_from_local使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在mrjob.fs.hadoop.HadoopFilesystem的用法示例。


在下文中一共展示了HadoopFilesystem.copy_from_local方法的1个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的Python代码示例。

示例1: HadoopFSTestCase

# 需要导入模块: from mrjob.fs.hadoop import HadoopFilesystem [as 别名]
# 或者: from mrjob.fs.hadoop.HadoopFilesystem import copy_from_local [as 别名]

#.........这里部分代码省略.........
        self.assertItemsEqual(list(self.fs.ls('hdfs:///')), ['hdfs:///foo bar'])

    def test_double_space(self):
        self.make_hdfs_file('foo  bar')
        self.assertItemsEqual(list(self.fs.ls('hdfs:///')), ['hdfs:///foo  bar'])

    def test_cat_uncompressed(self):
        # mockhadoop doesn't support compressed files, so we won't test for it.
        # this is only a sanity check anyway.
        self.make_hdfs_file('data/foo', 'foo\nfoo\n')

        remote_path = self.fs.path_join('hdfs:///data', 'foo')

        self.assertEqual(list(self.fs._cat_file(remote_path)),
                         ['foo\n', 'foo\n'])

    def test_write_str(self):
        path = 'hdfs:///write-test-str'
        content = 'some content!'
        self.fs.write(path, content)
        self.assertEqual("".join(self.fs.cat(path)), content)

    def test_write_file(self):
        path = 'hdfs:///write-test-fileobj'
        content = StringIO('some content!')
        self.fs.write(path, content)
        self.assertEqual("".join(self.fs.cat(path)), content.getvalue())

    def test_write_overwrite(self):
        self.make_hdfs_file('existing', 'this file already exists')
        self.assertRaises(OSError, self.fs.write, 'hdfs:///existing',
                          'can not overwrite')

    def test_copy_from_local(self):
        content = 'file filler'
        dst = 'hdfs:///hadoop-copy'
        src = self.makefile('local-source', content)

        self.fs.copy_from_local(dst, src)
        self.assertEqual("".join(self.fs.cat(dst)), content)

    def test_copy_from_local_override(self):
        src = self.makefile('local-source', 'source')
        self.make_hdfs_file('existing', 'this file already exists')
        self.assertRaises(OSError, self.fs.copy_from_local,
                          'hdfs:///existing', src)

    def test_du(self):
        self.make_hdfs_file('data1', 'abcd')
        self.make_hdfs_file('more/data2', 'defg')
        self.make_hdfs_file('more/data3', 'hijk')

        self.assertEqual(self.fs.du('hdfs:///'), 12)
        self.assertEqual(self.fs.du('hdfs:///data1'), 4)
        self.assertEqual(self.fs.du('hdfs:///more'), 8)
        self.assertEqual(self.fs.du('hdfs:///more/*'), 8)
        self.assertEqual(self.fs.du('hdfs:///more/data2'), 4)
        self.assertEqual(self.fs.du('hdfs:///more/data3'), 4)

    def test_mkdir(self):
        self.fs.mkdir('hdfs:///d')
        local_path = os.path.join(self.tmp_dir, 'mock_hdfs_root', 'd')
        self.assertEqual(os.path.isdir(local_path), True)

    def test_path_exists_no(self):
        path = 'hdfs:///f'
开发者ID:duedil-ltd,项目名称:mrjob,代码行数:70,代码来源:test_hadoop.py


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