347 lines
11 KiB
Python
347 lines
11 KiB
Python
#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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import os
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from obspy.core import (read, Stream, UTCDateTime)
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from obspy import readEvents
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from obspy.core.event import (Event, Catalog)
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from pylot.core.read import readPILOTEvent
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from pylot.core.util import fnConstructor, FormatError, \
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getGlobalTimes
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class Data(object):
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'''
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Data container with attributes wfdata holding ~obspy.core.stream.
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:type parent: PySide.QtGui.QWidget object, optional
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:param parent: A PySide.QtGui.QWidget object utilized when
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called by a GUI to display a PySide.QtGui.QMessageBox instead of printing
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to standard out.
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:type wfdata: ~obspy.core.stream.Stream object, optional
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:param wfdata: ~obspy.core.stream.Stream object containing all available
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waveform data for the actual event
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:type evtdata: ~obspy.core.event.Event object, optional
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:param evtdata ~obspy.core.event.Event object containing all derived or
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loaded event. Container object holding, e.g. phase arrivals, etc.
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'''
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def __init__(self, parent=None, evtdata=None):
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self._parent = parent
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if self.getParent():
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self.comp = parent.getComponent()
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else:
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self.comp = 'Z'
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self.wfdata = Stream()
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self.newevent = False
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if evtdata is not None and isinstance(evtdata, Event):
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self.evtdata = evtdata
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elif evtdata is not None and not isinstance(evtdata, dict):
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cat = readEvents(evtdata)
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self.evtdata = cat[0]
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elif evtdata is not None:
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cat = readPILOTEvent(**evtdata)
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else: # create an empty Event object
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self.newevent = True
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self.evtdata = Event()
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self.wforiginal = None
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self.cuttimes = None
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self.dirty = False
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def __str__(self):
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return str(self.wfdata)
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def getParent(self):
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return self._parent
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def isNew(self):
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return self.newevent
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def getCutTimes(self):
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if self.cuttimes is None:
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self.updateCutTimes()
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return self.cuttimes
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def updateCutTimes(self):
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self.cuttimes = getGlobalTimes(self.getWFData())
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def exportEvent(self, fnout=None, evtformat='QUAKEML'):
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from pylot.core.util.defaults import OUTPUTFORMATS
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if evtformat.strip() not in OUTPUTFORMATS.values():
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errmsg = 'selected format {0} not available'.format(evtformat)
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raise FormatError(errmsg)
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if fnout is None:
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ID = self.getID()
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# handle forbidden filenames especially on windows systems
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fnout = fnConstructor(ID)
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else:
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fnout = fnConstructor(fnout)
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evtformat = evtformat.upper().strip()
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# establish catalog object (event object has no write method)
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cat = Catalog()
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cat.append(self.getEvtData())
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# try exporting event via ObsPy
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try:
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cat.write(fnout + evtformat.lower(), format=evtformat)
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except KeyError, e:
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raise KeyError('''{0} export format
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not implemented: {1}'''.format(evtformat, e))
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def getComp(self):
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return self.comp
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def getID(self):
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try:
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return self.evtdata.get('resource_id').id
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except:
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return None
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def filterWFData(self, kwargs):
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self.getWFData().filter(**kwargs)
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self.dirty = True
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def setWFData(self, fnames):
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self.wfdata = Stream()
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self.wforiginal = None
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if fnames is not None:
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self.appendWFData(fnames)
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self.wforiginal = self.getWFData().copy()
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self.dirty = False
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def appendWFData(self, fnames):
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assert isinstance(fnames, list), "input parameter 'fnames' is " \
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"supposed to be of type 'list' " \
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"but is actually {0}".format(type(
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fnames))
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if self.dirty:
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self.resetWFData()
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warnmsg = ''
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for fname in fnames:
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try:
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self.wfdata += read(fname)
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except TypeError:
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try:
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self.wfdata += read(fname, format='GSE2')
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except Exception, e:
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warnmsg += '{0}\n{1}\n'.format(fname, e)
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if warnmsg:
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warnmsg = 'WARNING: unable to read\n' + warnmsg
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print warnmsg
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def getWFData(self):
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return self.wfdata
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def getOriginalWFData(self):
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return self.wforiginal
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def resetWFData(self):
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self.wfdata = self.getOriginalWFData().copy()
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self.dirty = False
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def getEvtData(self):
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return self.evtdata
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class GenericDataStructure(object):
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'''
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GenericDataBase type holds all information about the current data-
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base working on.
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'''
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def __init__(self, **kwargs):
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self.allowedFields = []
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self.expandFields = ['root']
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self.dsFields = {}
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self.modifyFields(**kwargs)
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def modifyFields(self, **kwargs):
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assert isinstance(kwargs, dict), 'dictionary type object expected'
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if not self.extraAllowed():
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kwargs = self.updateNotAllowed(kwargs)
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for key, value in kwargs.iteritems():
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key = str(key).lower()
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if value is not None:
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if type(value) not in (str, int, float):
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for n, val in enumerate(value):
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value[n] = str(val)
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else:
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value = str(value)
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try:
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self.setFieldValue(key, value)
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except KeyError, e:
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errmsg = ''
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errmsg += 'WARNING:\n'
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errmsg += 'unable to set values for datastructure fields\n'
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errmsg += '%s; desired value was: %s\n' % (e, value)
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print errmsg
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def isField(self, key):
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return key in self.getFields().keys()
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def getFieldValue(self, key):
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if self.isField(key):
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return self.getFields()[key]
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else:
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return
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def setFieldValue(self, key, value):
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if not self.extraAllowed() and key not in self.getAllowed():
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raise KeyError
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else:
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if not self.isField(key):
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print 'creating new field "%s"' % key
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self.getFields()[key] = value
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def getFields(self):
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return self.dsFields
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def getExpandFields(self):
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return self.expandFields
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def setExpandFields(self, keys):
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expandFields = []
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for key in keys:
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if self.isField(key):
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expandFields.append(key)
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self.expandFields = expandFields
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def getAllowed(self):
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return self.allowedFields
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def extraAllowed(self):
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return not self.allowedFields
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def updateNotAllowed(self, kwargs):
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for key in kwargs:
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if key not in self.getAllowed():
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kwargs.__delitem__(key)
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return kwargs
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def hasSuffix(self):
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try:
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self.getFieldValue('suffix')
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except KeyError:
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return False
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else:
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if self.getFieldValue('suffix'):
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return True
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return False
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def expandDataPath(self):
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expandList = []
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for item in self.getExpandFields():
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expandList.append(self.getFieldValue(item))
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if self.hasSuffix():
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expandList.append('*%s' % self.getFieldValue('suffix'))
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return os.path.join(*expandList)
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class PilotDataStructure(GenericDataStructure):
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'''
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Object containing the data access information for the old PILOT data
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structure.
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'''
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def __init__(self, **fields):
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if not fields:
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fields = {'database':'2006.01',
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'root':'/data/Egelados/EVENT_DATA/LOCAL'}
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GenericDataStructure.__init__(self, **fields)
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self.setExpandFields(['root','database'])
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class SeiscompDataStructure(GenericDataStructure):
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'''
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Dictionary containing the data access information for an SDS data archive:
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:param str dataType: Desired data type. Default: ``'waveform'``
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:param sdate, edate: Either date string or an instance of
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:class:`obspy.core.utcdatetime.UTCDateTime. Default: ``None``
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:type sdate, edate: str or UTCDateTime or None
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'''
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def __init__(self, rootpath='/data/SDS', dataformat='MSEED',
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filesuffix=None, **kwargs):
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super(GenericDataStructure, self).__init__()
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edate = UTCDateTime()
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halfyear = UTCDateTime('1970-07-01')
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sdate = UTCDateTime(edate - halfyear)
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del halfyear
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year = ''
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if not edate.year == sdate.year:
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nyears = edate.year - sdate.year
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for yr in range(nyears):
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year += '{0:04d},'.format(sdate.year + yr)
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year = '{' + year[:-1] + '}'
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else:
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year = '{0:04d}'.format(sdate.year)
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# SDS fields' default values
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# definitions from
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# http://www.seiscomp3.org/wiki/doc/applications/slarchive/SDS
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self.dsFields = {'root': '/data/SDS', 'YEAR': year, 'NET': '??',
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'STA': '????', 'CHAN': 'HH?', 'TYPE': 'D', 'LOC': '',
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'DAY': '{0:03d}'.format(sdate.julday)
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}
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self.modifiyFields(**kwargs)
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def modifiyFields(self, **kwargs):
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if kwargs and isinstance(kwargs, dict):
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for key, value in kwargs.iteritems():
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key = str(key)
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if type(value) not in (str, int, float):
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for n, val in enumerate(value):
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value[n] = str(val)
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else:
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value = str(value)
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try:
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self.setField(key, value)
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except KeyError, e:
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errmsg = ''
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errmsg += 'WARNING:\n'
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errmsg += 'unable to set values for SDS fields\n'
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errmsg += '%s; desired value was: %s\n' % (e, value)
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print errmsg
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def setFieldValue(self, key, value):
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if self.isField(key):
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self.getFields()[key] = value
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else:
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print('Warning: trying to set value of non-existent field '
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'{field}'.format(field=key))
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def getFields(self):
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return self.__sdsFields
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def getName(self):
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return self.__name
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def expandDataPath(self):
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fullChan = '{0}.{1}'.format(self.getFields()['CHAN'], self.getType())
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dataPath = os.path.join(self.getFields()['SDSdir'],
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self.getFields()['YEAR'],
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self.getFields()['NET'],
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self.getFields()['STA'],
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fullChan,
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'*{0}'.format(self.getFields()['DAY']))
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return dataPath
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