def initialize():
global vtkpython
global weblauncher
# Get the module config.
config = tangelo.plugin_config()
# Raise an error if there's no vtkpython executable.
vtkpython = config.get("vtkpython", None)
if not vtkpython:
msg = "No 'vtkpython' option specified in configuration plugin"
tangelo.log_warning("VTKWEB", "[initialization] fatal error: %s" % (msg))
# Construct a run() function that will mask the restful API and just
# inform the caller about the configuration problem.
def run():
tangelo.http_status(400, "Bad Configuration")
return {"error": msg}
sys.modules[__name__].__dict__["run"] = run
return
vtkpython = tangelo.util.expandpath(vtkpython)
tangelo.log("VTKWEB", "[initialization] Using vtkpython executable %s" % (vtkpython))
# Use the "web launcher" included with the plugin.
weblauncher = os.path.realpath("%s/../include/vtkweb-launcher.py" % (os.path.dirname(__file__)))
# Initialize a table of VTKWeb processes.
if tangelo.plugin_store().get("processes") is None:
tangelo.plugin_store()["processes"] = {}
# Check to see if a reactor is running already.
if twisted.internet.reactor.running:
threads = [t for t in threading.enumerate() if t.name == "tangelo-vtkweb-plugin"]
if len(threads) > 0:
tangelo.log_warning(
"VTKWEB", "[initialization] A reactor started by a previous loading of this plugin is already running"
)
else:
tangelo.log_warning(
"VTKWEB", "[initialization] A reactor started by someone other than this plugin is already running"
)
else:
# Start the Twisted reactor, but in a separate thread so it doesn't
# block the CherryPy main loop. Mark the thread as "daemon" so that
# when Tangelo's main thread exits, the reactor thread will be killed
# immediately.
reactor = threading.Thread(
target=twisted.internet.reactor.run, kwargs={"installSignalHandlers": False}, name="tangelo-vtkweb-plugin"
)
reactor.daemon = True
reactor.start()
tangelo.log_info("VTKWEB", "[initialization] Starting Twisted reactor")
def initialize():
global vtkpython
global weblauncher
# Get the module config.
config = tangelo.plugin_config()
# Raise an error if there's no vtkpython executable.
vtkpython = config.get("vtkpython", None)
if not vtkpython:
msg = "No 'vtkpython' option specified in configuration plugin"
tangelo.log_warning("VTKWEB", "[initialization] fatal error: %s" % (msg))
# Construct a run() function that will mask the restful API and just
# inform the caller about the configuration problem.
def run():
tangelo.http_status(400, "Bad Configuration")
return {"error": msg}
sys.modules[__name__].__dict__["run"] = run
return
vtkpython = tangelo.util.expandpath(vtkpython)
tangelo.log("VTKWEB", "[initialization] Using vtkpython executable %s" % (vtkpython))
# Use the "web launcher" included with the plugin.
weblauncher = os.path.realpath("%s/../include/vtkweb-launcher.py" % (os.path.dirname(__file__)))
# Initialize a table of VTKWeb processes.
if tangelo.plugin_store().get("processes") is None:
tangelo.plugin_store()["processes"] = {}
# Check to see if a reactor is running already.
if twisted.internet.reactor.running:
threads = [t for t in threading.enumerate() if t.name == "tangelo-vtkweb-plugin"]
if len(threads) > 0:
tangelo.log_warning("VTKWEB", "[initialization] A reactor started by a previous loading of this plugin is already running")
else:
tangelo.log_warning("VTKWEB", "[initialization] A reactor started by someone other than this plugin is already running")
else:
# Start the Twisted reactor, but in a separate thread so it doesn't
# block the CherryPy main loop. Mark the thread as "daemon" so that
# when Tangelo's main thread exits, the reactor thread will be killed
# immediately.
reactor = threading.Thread(
target=twisted.internet.reactor.run,
kwargs={"installSignalHandlers": False},
name="tangelo-vtkweb-plugin"
)
reactor.daemon = True
reactor.start()
tangelo.log_info("VTKWEB", "[initialization] Starting Twisted reactor")
def run(start, end, fields="*", sort="rowid"):
config = tangelo.plugin_config()
dbName = config["database_name"]
conn = sqlite3.connect(config['database_url'])
c = conn.cursor()
print sort
# for speedup
if sort=="rowid":
c.execute('SELECT '+fields+' FROM "'+dbName+'" LIMIT ?,?;',( start, end-start))
else:
print "THIS"
c.execute('SELECT '+fields+' FROM "'+dbName+'" ORDER BY "'+sort+'" LIMIT ?,?;',(start,end))
res = c.fetchall()
conn.close()
return {'res':res, 'sort':sort, 'fields':fields}