Module: CcipherFactory::Compression::CompressionHelper

Included in:
AsymKeyCipher::ECCAttEncrypt, AsymKeyCipher::ECCEncrypt, AsymKeySigner::ECCAttSigner, AsymKeySigner::ECCAttVerifier, CcipherFactory::CompositeCipher::SignEncryptor, SymKeyCipher::SymKeyAttEncrypt, SymKeyCipher::SymKeyDecrypt, SymKeyCipher::SymKeyEncrypt, SymKeySigner::SymKeyAttSign, SymKeySigner::SymKeyAttVerify
Defined in:
lib/ccipher_factory/compression/compression_helper.rb

Instance Method Summary collapse

Instance Method Details

#compress_data_if_active(val) ⇒ Object 



54
55
56
57
58
59
60
61
62
 
# File 'lib/ccipher_factory/compression/compression_helper.rb', line 54

def compress_data_if_active(val)
  if is_compression_on?
    logger.tdebug :compress_if_active, "Compression is on"
    compressor.compress_update(val)
  else
    logger.tdebug :compress_if_active, "Compression is OFF"
    val
  end
end

#compression_off ⇒ Object 



29
30
31
 
# File 'lib/ccipher_factory/compression/compression_helper.rb', line 29

def compression_off
  @compress = false
end

#compression_on ⇒ Object 



25
26
27
 
# File 'lib/ccipher_factory/compression/compression_helper.rb', line 25

def compression_on
  @compress = true
end

#compressor ⇒ Object 



41
42
43
44
45
46
47
48
49
50
51
52
 
# File 'lib/ccipher_factory/compression/compression_helper.rb', line 41

def compressor
  if @compressor.nil? 
    if is_compression_on?
      @compressor = Compressor.instance.compress 
      @compressor.compress_init
    else
      @compressor = Compressor.instance.null_engine
    end
  end

  @compressor
end

#decompress_data_if_active(val) ⇒ Object 



64
65
66
67
68
69
70
71
72
 
# File 'lib/ccipher_factory/compression/compression_helper.rb', line 64

def decompress_data_if_active(val)
  if is_compression_on?
    logger.tdebug :decompress_if_active, "Decompression is on"
    decompressor.decompress_update(val)
  else
    logger.tdebug :decompress_if_active, "decompression is OFF"
    val
  end
end

#decompressor ⇒ Object 



74
75
76
77
78
79
80
81
82
83
84
85
 
# File 'lib/ccipher_factory/compression/compression_helper.rb', line 74

def decompressor
  if @decompressor.nil?
    if is_compression_on?
      @decompressor = Compressor.instance.decompress
      @decompressor.decompress_init
    else
      @decompressor = Compressor.instance.null_engine
    end
  end

  @decompressor
end

#decompressor_from_encoded(bin) ⇒ Object 



9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
 
# File 'lib/ccipher_factory/compression/compression_helper.rb', line 9

def decompressor_from_encoded(bin)

  ts = BinStruct.instance.struct_from_bin(bin)
  case BTag.value_constant(ts.oid)
  when :compression_zlib
    compression_on
  when :compression_none
    compression_off
  else
    compression_off
  end

  decompressor.decompress_update_meta(bin)

end

#encode_null_compressor ⇒ Object 



87
88
89
 
# File 'lib/ccipher_factory/compression/compression_helper.rb', line 87

def encode_null_compressor
  BinStruct.instance.struct(:compression_none).encoded
end

#is_compression_on? ⇒ Boolean

Returns:

  • (Boolean) 


33
34
35
36
37
38
39
 
# File 'lib/ccipher_factory/compression/compression_helper.rb', line 33

def is_compression_on?
  if @compress.nil?
    false
  else
    @compress
  end
end

#logger ⇒ Object 



91
92
93
94
95
96
97
 
# File 'lib/ccipher_factory/compression/compression_helper.rb', line 91

def logger
  if @logger.nil?
    @logger = Tlogger.new
    @logger.tag = :comp_helper
  end
  @logger
end