AtacamaAtacamaLargeLargeMillimeterMillimeterArrayArray

ACS Training

Using the Python Error System

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Getting Started

At the console, type: cvs co ACS/LGPL/CommonSoftware/acscourseThis gives you the source code from the slides.

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What’s Available in Python?

Everything available in C++ including Completion helper class support, but it’s much simpler to use.

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Example (XML)

<?xml version="1.0" encoding="UTF-8"?><Type xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

xsi:noNamespaceSchemaLocation="ACSError.xsd" name="ACSErrTypeACSCourse" type="9005" _prefix="alma"> <Code name="Pointing" shortDescription="Pointing" description="Pointing in progress"/> <ErrorCode name="TargetNotFound" shortDescription="Target Not Found" description="Target Couldn't be found"/></Type>

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Example (IDL)

#ifndef _ACSCOURSE_MOUNT_IDL_#define _ACSCOURSE_MOUNT_IDL_

#include <baci.idl> /* <acscomponent.idl> */#include <ACSErrTypeACSCourse.idl>#pragma prefix "alma"

module ACSCOURSE_MOUNT {interface Mount1 : ACS::ACSComponent {

/* (Pre)sets a new non-moving position for the antenna.* @param az position azimuth (degree)

* @param elev position elevation (degree) */ void objfix (in double az, in double elev) raises (ACSErrTypeACSCourse::TargetNotFoundEx); };};#endif

IDL

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Example (Python)

import ACSCOURSE_MOUNT__POA#--ACS Imports----------------------------------------------------------from Acspy.Servants.ContainerServices import ContainerServicesfrom Acspy.Servants.ComponentLifecycle import ComponentLifecyclefrom Acspy.Servants.ACSComponent import ACSComponentimport ACSErrTypeACSCourseImpl

class Mount1(ACSCOURSE_MOUNT__POA.Mount1, #CORBA stubs for IDL interface ACSComponent, #Base IDL interface ContainerServices, #Developer niceties ComponentLifecycle): #HLA stuff '''Simple component impl provided as a reference for developers.''' def __init__(self): ACSComponent.__init__(self) ContainerServices.__init__(self) return

Correspondsto Error Type

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Example (Python)

#--------------------------------------------------------------------------def objfix(self, az, el): '''Python implementation of IDL method.''' if el>90: self.getLogger().logInfo("objfix called with az="+str(az)+ " and el="+str(el)) else: self.getLogger().logCritical("Wrong value for el "+str(el)) raise ACSErrTypeACSCourseImpl.TargetNotFoundExImpl()

Correspondsto Error Type Corresponds

to ErrorCode

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What methods do exception/completion helper classes generated by the ACS Error System have?

As usual, look at the Pydoc!

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Questions about the Python Error System?

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Demo