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Python Text.readString方法代碼示例

本文整理匯總了Python中Text.Text.readString方法的典型用法代碼示例。如果您正苦於以下問題:Python Text.readString方法的具體用法?Python Text.readString怎麽用?Python Text.readString使用的例子?那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在Text.Text的用法示例。


在下文中一共展示了Text.readString方法的2個代碼示例,這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚,您的評價將有助於係統推薦出更棒的Python代碼示例。

示例1: readFields

# 需要導入模塊: from Text import Text [as 別名]
# 或者: from Text.Text import readString [as 別名]
    def readFields(self, data_input):
        count = data_input.readInt()
        if count < 0:
            raise IOError("Invalid size: %d for file metadata object" % count)

        for i in xrange(count):
            key = Text.readString(data_input)
            value = Text.readString(data_input)
            self._meta[key] = value
開發者ID:KimYoungDeok,項目名稱:Hadoop,代碼行數:11,代碼來源:SequenceFile.py

示例2: _initialize

# 需要導入模塊: from Text import Text [as 別名]
# 或者: from Text.Text import readString [as 別名]
    def _initialize(self, path, start, length):
        self._stream = self.getStream(path)

        if length == 0:
            self._end = self._stream.getPos() + self._stream.length()
        else:
            self._end = self._stream.getPos() + length

        # Parse Header
        version_block = self._stream.read(len(VERSION))

        self._version = version_block[len(VERSION_PREFIX)]
        if not self._version.startswith(VERSION_PREFIX):
            raise VersionPrefixException(VERSION_PREFIX,
                                         self._version[0:len(VERSION_PREFIX)])

        if self._version > VERSION[len(VERSION_PREFIX)]:
            raise VersionMismatchException(VERSION[len(VERSION_PREFIX)],
                                           self._version)

        if self._version < BLOCK_COMPRESS_VERSION:
            # Same as below, but with UTF8 Deprecated Class
            raise NotImplementedError
        else:
            self._key_class_name = Text.readString(self._stream)
            self._value_class_name = Text.readString(self._stream)

        if ord(self._version) > 2:
            self._decompress = self._stream.readBoolean()
        else:
            self._decompress = False

        if self._version >= BLOCK_COMPRESS_VERSION:
            self._block_compressed = self._stream.readBoolean()
        else:
            self._block_compressed = False

        # setup compression codec
        if self._decompress:
            if self._version >= CUSTOM_COMPRESS_VERSION:
                codec_class = Text.readString(self._stream)
                self._codec = CodecPool().getDecompressor(codec_class)
            else:
                self._codec = CodecPool().getDecompressor()

        self._metadata = Metadata()
        if self._version >= VERSION_WITH_METADATA:
            self._metadata.readFields(self._stream)

        if self._version > 1:
            self._sync = self._stream.read(SYNC_HASH_SIZE)
            self._header_end = self._stream.getPos()
開發者ID:KimYoungDeok,項目名稱:Hadoop,代碼行數:54,代碼來源:SequenceFile.py


注:本文中的Text.Text.readString方法示例由純淨天空整理自Github/MSDocs等開源代碼及文檔管理平台,相關代碼片段篩選自各路編程大神貢獻的開源項目,源碼版權歸原作者所有,傳播和使用請參考對應項目的License;未經允許,請勿轉載。