esp-studio-examples/Transformations/python_module/model.xml at main · sassoftware/esp-studio-examples · GitHub

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<project heartbeat-interval="1" luaroot="@ESP_PROJECT_OUTPUT@/luaroot" name="python_module" pubsub="auto" threads="1">

    <description><![CDATA[This example demonstrates how you can define useful functions in a Python module at project level and reference those functions from other Python code in the project.]]></description>

    <metadata>

        <meta id="layout">{"cq1":{"Python":{"x":50,"y":175},"Source":{"x":50,"y":50}}}</meta>

        <meta id="studioUploadedBy">user1</meta>

        <meta id="studioUploaded">1704387881198</meta>

        <meta id="studioModifiedBy">user1</meta>

        <meta id="studioModified">1704389519847</meta>

        <meta id="studioTags">Example</meta>

    </metadata>

    <python-modules>

        <python-module name="logger">

            <description><![CDATA[This Python module defines logging functions.]]></description>

            <code><![CDATA[import esp

class Logger:

    def __init__(self,context):
        self._context = context if context != None else "mylogger"

    def error(self,msg,line = None):
        esp.logMessage(logcontext=self._context,message=msg,level="error",line=line)

    def warn(self,msg,line = None):
        esp.logMessage(logcontext=self._context,message=msg,level="warn",line=line)

    def fatal(self,msg,line = None):
        esp.logMessage(logcontext=self._context,message=msg,level="fatal",line=line)

    def info(self,msg,line = None):
        esp.logMessage(logcontext=self._context,message=msg,level="info",line=line)

    def debug(self,msg,line = None):
        esp.logMessage(logcontext=self._context,message=msg,level="debug",line=line)

    def trace(self,msg,line = None):
        esp.logMessage(logcontext=self._context,message=msg,level="trace",line=line)]]></code>

        </python-module>

    </python-modules>

    <contqueries>

        <contquery name="cq1">

            <windows>

                <window-source name="Source">

                    <description><![CDATA[The Source window streams information from the python_module.csv file to the Python window.]]></description>

                    <schema>

                        <fields>

                            <field key="true" name="id" type="string"/>

                            <field name="dividend" type="int32"/>

                            <field name="divisor" type="int32"/>

                            <field name="quotient" type="double"/>

                        </fields>

                    </schema>

                    <connectors>

                        <connector class="fs" name="pub">

                            <properties>

                                <property name="type"><![CDATA[pub]]></property>

                                <property name="fsname"><![CDATA[@ESP_PROJECT_HOME@/test_files/python_module.csv]]></property>

                                <property name="fstype"><![CDATA[csv]]></property>

                            </properties>

                        </connector>

                    </connectors>

                </window-source>

                <window-python events="create" name="Python">

                    <description><![CDATA[The Python window performs division calculations and references a Python module that defines the logging functionality.]]></description>

                    <schema>

                        <fields>

                            <field key="true" name="id" type="string"/>

                            <field name="dividend" type="int32"/>

                            <field name="divisor" type="int32"/>

                            <field name="quotient" type="double"/>

                        </fields>

                    </schema>

                    <copy><![CDATA[id,dividend,divisor]]></copy>

                    <code><![CDATA[from logger import Logger

def create(data,context):

    e = {}
    dividend = data["dividend"]
    divisor = data["divisor"]

    if (divisor == 0):
        logger = Logger("modules.example")
        logger.error("division by 0, " + str(dividend) + "/" + str(divisor))
        return None

    e["quotient"] = dividend / divisor

    return(e)]]></code>

                </window-python>

            </windows>

            <edges>

                <edge source="Source" target="Python"/>

            </edges>

        </contquery>

    </contqueries>

</project>