Source code for galaxy.visualization.data_providers.phyloviz


""" Data providers code for PhyloViz """

from galaxy.visualization.data_providers.basic import BaseDataProvider
from galaxy.visualization.data_providers.phyloviz.newickparser import Newick_Parser
from galaxy.visualization.data_providers.phyloviz.nexusparser import Nexus_Parser
from galaxy.visualization.data_providers.phyloviz.phyloxmlparser import Phyloxml_Parser


[docs]class PhylovizDataProvider(BaseDataProvider):

    dataset_type = "phylo"

[docs]    def __init__(self, original_dataset=None):
        super(PhylovizDataProvider, self).__init__(original_dataset=original_dataset)

[docs]    def get_data(self, tree_index=0):
        """
        Returns trees.
        Trees are actually an array of JsonDicts. It's usually one tree, except in the case of Nexus
        """

        file_ext = self.original_dataset.datatype.file_ext
        file_name = self.original_dataset.file_name
        parseMsg = None
        jsonDicts = []
        rval = {'dataset_type': self.dataset_type}

        if file_ext == "nhx":  # parses newick files
            newickParser = Newick_Parser()
            jsonDicts, parseMsg = newickParser.parseFile(file_name)
        elif file_ext == "phyloxml":  # parses phyloXML files
            phyloxmlParser = Phyloxml_Parser()
            jsonDicts, parseMsg = phyloxmlParser.parseFile(file_name)
        elif file_ext == "nex":  # parses nexus files
            nexusParser = Nexus_Parser()
            jsonDicts, parseMsg = nexusParser.parseFile(file_name)
            jsonDicts = jsonDicts[int(tree_index)]
            rval["trees"] = parseMsg

        rval["data"] = jsonDicts
        rval["msg"] = parseMsg

        return rval