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1 #
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2 # Copyright INRA-URGI 2009-2010
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3 #
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4 # This software is governed by the CeCILL license under French law and
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5 # abiding by the rules of distribution of free software. You can use,
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6 # modify and/ or redistribute the software under the terms of the CeCILL
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7 # license as circulated by CEA, CNRS and INRIA at the following URL
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8 # "http://www.cecill.info".
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9 #
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10 # As a counterpart to the access to the source code and rights to copy,
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11 # modify and redistribute granted by the license, users are provided only
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12 # with a limited warranty and the software's author, the holder of the
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13 # economic rights, and the successive licensors have only limited
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14 # liability.
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15 #
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16 # In this respect, the user's attention is drawn to the risks associated
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17 # with loading, using, modifying and/or developing or reproducing the
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18 # software by the user in light of its specific status of free software,
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19 # that may mean that it is complicated to manipulate, and that also
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20 # therefore means that it is reserved for developers and experienced
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21 # professionals having in-depth computer knowledge. Users are therefore
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22 # encouraged to load and test the software's suitability as regards their
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23 # requirements in conditions enabling the security of their systems and/or
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24 # data to be ensured and, more generally, to use and operate it in the
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25 # same conditions as regards security.
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26 #
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27 # The fact that you are presently reading this means that you have had
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28 # knowledge of the CeCILL license and that you accept its terms.
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29 #
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30 import os
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31 import random
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32 from SMART.Java.Python.mySql.MySqlTable import MySqlTable
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33 from SMART.Java.Python.mySql.MySqlTranscriptTable import MySqlTranscriptTable
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34 from SMART.Java.Python.misc.Progress import Progress
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35
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36 class MySqlTranscriptWriter(object):
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37 """
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38 A class that writes a transcript list into a mySQL table
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39 @ivar name: name of the tables
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40 @type name: string
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41 @ivar tables: the tables
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42 @type tables: dict of L{MySqlTranscriptTable<MySqlTranscriptTable>}
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43 @ivar mySqlConnection: connection to a MySQL database
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44 @type mySqlConnection: class L{MySqlConnection<MySqlConnection>}
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45 @ivar tmpTranscriptFileHandles: files where transcripts are temporary stored, before copy into database
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46 @type tmpTranscriptFileHandles: dict of file handles
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47 @ivar nbTranscriptsByChromosome: number of transcripts written
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48 @type nbTranscriptsByChromosome: dict of int (one for each chromosome)
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49 @ivar randomNumber: a random number, used for having a unique name for the tables
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50 @type randomNumber: int
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51 @ivar toBeWritten: there exists transcripts to be copied into database
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52 @type toBeWritten: bool
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53 @ivar verbosity: verbosity
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54 @type verbosity: int
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55 """
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56
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57
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58 def __init__(self, connection, name = None, verbosity = 0):
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59 """
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60 Constructor
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61 @param name: name of the file
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62 @type name: string
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63 @param verbosity: verbosity
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64 @type verbosity: int
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65 """
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66 self.name = name
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67 self.verbosity = verbosity
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68 self.tables = {}
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69 self.indices = {}
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70 self.tmpTranscriptFileHandles = {}
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71 self.nbTranscriptsByChromosome = {}
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72 self.toBeWritten = False
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73 self.randomNumber = random.randint(0, 100000)
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74 self.mySqlConnection = connection
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75 self.nbTmpFiles = 100
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76 self.transcriptValues = {}
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77 self.nbTranscriptValues = 1000
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78 if self.name != None:
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79 pos = self.name.rfind(os.sep)
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80 if pos != -1:
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81 self.name = self.name[pos+1:]
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82
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83
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84 def __del__(self):
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85 """
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86 Destructor
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87 Possibly write into into database the last transcripts
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88 """
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89 if self.toBeWritten:
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90 self.write()
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91
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92
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93 def addIndex(self, name, values):
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94 """
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95 Add an index to the tables
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96 @param name: name of the index
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97 @type name: string
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98 @param values: values to index
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99 @type values: list of strings
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100 """
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101 self.indices[name] = values
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102
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103
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104 def createTable(self, chromosome):
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105 """
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106 Create a table for a chromosome
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107 @param chromosome: a chromosome name
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108 @type chromosome: string
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109 """
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110 self.tables[chromosome] = MySqlTranscriptTable(self.mySqlConnection, self.name, chromosome, self.verbosity)
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111 self.tables[chromosome].createTranscriptTable()
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112 for name, values in self.indices.iteritems():
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113 self.tables[chromosome].createIndex("%s_%s_%d" % (name, chromosome, self.randomNumber), values)
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114
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115
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116
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117 def addTranscript(self, transcript):
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118 """
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119 Add a transcript to the list of transcripts to be written
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120 @param transcript: transcript to be written
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121 @type transcript: class L{Transcript<Transcript>}
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122 """
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123 chromosome = transcript.getChromosome()
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124 if chromosome not in self.tables:
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125 self.createTable(chromosome)
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126 self.nbTranscriptsByChromosome[chromosome] = 1
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127 if chromosome not in self.transcriptValues:
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128 self.transcriptValues[chromosome] = []
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129
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130 self.transcriptValues[chromosome].append(transcript.getSqlValues())
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131
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132 self.nbTranscriptsByChromosome[chromosome] += 1
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133 self.toBeWritten = True
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134 if sum([len(transcripts) for transcripts in self.transcriptValues.values()]) > self.nbTranscriptValues:
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135 self.write()
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136
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137
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138 def addElement(self, element):
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139 """
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140 Same as "addTranscript"
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141 @param element: transcript to be written
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142 @type element: class L{Transcript<Transcript>}
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143 """
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144 self.addTranscript(element)
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145
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146
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147 # def addTranscriptList(self, transcriptListParser):
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148 # """
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149 # Add a list of transcripts to the transcripts to be written
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150 # @param transcriptListParser: transcripts to be written
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151 # @type transcriptListParser: class L{TranscriptListParser<TranscriptListParser>}
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152 # """
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153 # progress = Progress(transcriptListParser.getNbTranscripts(), "Storing %s into database" % (transcriptListParser.fileName), self.verbosity)
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154 # for transcript in transcriptListParser.getIterator():
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155 # self.addTranscript(transcript)
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156 # progress.inc()
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157 # progress.done()
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158
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159
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160 def addTranscriptList(self, transcriptListParser):
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161 """
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162 Add a list of transcripts to the transcripts to be written
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163 @param transcriptListParser: transcripts to be written
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164 @type transcriptListParser: class L{TranscriptListParser<TranscriptListParser>}
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165 """
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166 self.transcriptListParser = transcriptListParser
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167 self.mySqlConnection.executeManyQueriesIterator(self)
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168
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169
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170 def getIterator(self):
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171 """
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172 Iterator to the SQL commands to insert the list
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173 """
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174 progress = Progress(self.transcriptListParser.getNbTranscripts(), "Storing %s into database" % (self.transcriptListParser.fileName), self.verbosity)
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175 for transcript in self.transcriptListParser.getIterator():
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176 chromosome = transcript.getChromosome()
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177 if chromosome not in self.tables:
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178 self.createTable(chromosome)
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179 self.nbTranscriptsByChromosome[chromosome] = self.nbTranscriptsByChromosome.get(chromosome, 0) + 1
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180 values = transcript.getSqlValues()
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181 yield "INSERT INTO '%s' (%s) VALUES (%s)" % (self.tables[chromosome].name, ", ".join(self.tables[chromosome].variables), ", ".join([MySqlTable.formatSql(values[variable], self.tables[chromosome].types[variable], self.tables[chromosome].sizes[variable]) for variable in self.tables[chromosome].variables]))
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182 progress.inc()
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183 progress.done()
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184
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185
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186 def write(self):
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187 """
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188 Copy the content of the files into the database
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189 (May add transcripts to already created databases)
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190 """
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191 for chromosome in self.transcriptValues:
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192 if chromosome in self.transcriptValues:
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193 self.tables[chromosome].insertMany(self.transcriptValues[chromosome])
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194 self.transcriptValues = {}
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195 self.toBeWritten = False
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196
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197
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198 def getTables(self):
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199 """
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200 Get the tables
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201 @return: the mySQL tables
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202 """
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203 if self.toBeWritten:
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204 self.write()
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205 return self.tables
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206
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207
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208
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209 def removeTables(self):
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210 """
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211 Drop the tables
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212 """
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213 for chromosome in self.tables:
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214 self.tables[chromosome].remove()
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