Trabajar con informes en un sistema de gestión de datos

¡Hola a todos! En este artículo, queremos hablar sobre cómo generamos informes en la plataforma Unidata. Cualquier trabajo con datos conduce inevitablemente a la construcción de informes especializados en los que los usuarios pueden procesar de manera eficiente estos datos y tomar decisiones comerciales en base a ellos.





¿Cómo eligió un sistema de informes?

No es una tarea trivial y costosa crear un módulo para generar informes en la plataforma, por lo que se hizo necesario encontrar un conjunto de herramientas adecuado para generar informes. Nuestros principales criterios fueron:





  • Uso gratuito de software en proyectos comerciales de código abierto





  • La herramienta para la construcción de datos debe trabajar con los principales formatos de las fuentes de datos, así como directamente con la base de datos.





  • Uso de Java para crear informes





  • El software debe ser compatible y actualizado con soporte para compatibilidad con versiones anteriores.





  • El generador de informes debe ser conveniente y comprensible.





  • La herramienta debería permitirle crear plantillas de informes en todos los formatos principales: excel, csv, pdf, html, etc.





  • Visualización enriquecida y creación de paneles de control.





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public Response getJasperReport(@QueryParam("url") String url) throws UnsupportedEncodingException {
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            .target(jasperUrlLogin)
            .queryParam("j_username", jasperLogin)
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<?xml version="1.0" encoding="UTF-8"?>
<!-- Created with Jaspersoft Studio version 6.9.0.final using JasperReports Library version 6.9.0-cb8f9004be492ccc537180b49c026951f4220bf3  -->
<jasperReport xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://jasperreports.sourceforge.net/jasperreports" xsi:schemaLocation="http://jasperreports.sourceforge.net/jasperreports http://jasperreports.sourceforge.net/xsd/jasperreport.xsd" name="pubsub_diagram" pageWidth="1150" pageHeight="550" columnWidth="555" leftMargin="20" rightMargin="20" topMargin="20" bottomMargin="20" uuid="e8ef4a20-ab26-44c0-8b4d-316411f7d350">
    <property name="com.jaspersoft.studio.data.defaultdataadapter" value="postgres_local.xml"/>
    <property name="net.sf.jasperreports.export.xls.ignore.graphics" value="false"/>
    <parameter name="date_from_param" class="java.lang.String"/>
    <parameter name="date_to_param" class="java.lang.String"/>
    <parameter name="systems_param" class="java.util.Collection"/>
    <parameter name="status_param" class="java.util.Collection"/>
    <parameter name="entities_param" class="java.util.Collection"/>
    <parameter name="count_details_param" class="java.lang.Integer"/>
    <parameter name="group_param" class="java.lang.String"/>
      
      



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        <![CDATA[SELECT * FROM (
Cnjbn with main_table AS
(SELECT T3.status as status, count(T3.id) as count_status, (count(T3.id) / (to_date($P{date_to_param}, 'DD_MM_YYYY') - to_date($P{date_from_param}, 'DD_MM_YYYY') + 1)) as avg_count_status  FROM
(SELECT T1.id,T2.status
    FROM public.history
     AS T1
LEFT JOIN
(SELECT DISTINCT ON (history_id) history_id, status FROM public.track
WHERE createdate >= to_date($P{date_from_param}, 'DD_MM_YYYY')
    AND DATE(createdate) <= to_date($P{date_to_param}, 'DD_MM_YYYY')
ORDER BY history_id, createdate DESC NULLS LAST
) AS T2
ON T1.id = T2.history_id
WHERE T2.status IS NOT NULL
AND $X{IN,T1.unidatasourcesystem, systems_param} AND $X{IN,T1.entity, entities_param}
AND T1.createdate >= to_date($P{date_from_param}, 'DD_MM_YYYY')
AND DATE(T1.createdate) <= to_date($P{date_to_param}, 'DD_MM_YYYY')
AND $X{IN,T2.status, status_param}
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GROUP BY T3.status)
SELECT main_table.*, round((count_status * 100) / (SELECT SUM(count_status) FROM main_table), 2) AS percent_status FROM main_table
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<columnHeader>
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</columnHeader>
<detail>
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            <textElement textAlignment="Center" verticalAlignment="Middle">
                <font fontName="Arial" size="12"/>
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        </textField>
        <textField>
            <reportElement x="150" y="0" width="150" height="30" uuid="a820021d-95d6-4ee5-a5a4-887aca484efb"/>
            <textElement textAlignment="Center" verticalAlignment="Middle">
                <font fontName="Arial" size="12"/>
            </textElement>
            <textFieldExpression><![CDATA[$F{count_status}]]></textFieldExpression>
        </textField>
        <textField>
            <reportElement x="300" y="0" width="160" height="30" uuid="e7927fa9-5b8f-43ff-bea7-1d74d8a3ce27"/>
            <textElement textAlignment="Center" verticalAlignment="Middle">
                <font fontName="Arial" size="12"/>
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            <textFieldExpression><![CDATA[$F{avg_count_status}]]></textFieldExpression>
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</detail>
<summary>
    <band height="370">
        <staticText>
            <reportElement x="0" y="0" width="150" height="30" uuid="d93b83c8-b168-4766-91d8-b9545e3239a7"/>
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            <textElement textAlignment="Center" verticalAlignment="Middle">
                <font fontName="Arial" size="12"/>
            </textElement>
            <textFieldExpression><![CDATA[$V{sum_status}]]></textFieldExpression>
        </textField>
        <textField>
            <reportElement x="300" y="0" width="160" height="30" uuid="67d24b52-4d3e-47ae-a35d-dc98a9b230f5"/>
            <textElement textAlignment="Center" verticalAlignment="Middle">
                <font fontName="Arial" size="12"/>
            </textElement>
            <textFieldExpression><![CDATA[$V{sum_avg_count_status}]]></textFieldExpression>
        </textField>
        <pieChart>
            <chart evaluationTime="Report">
                <reportElement x="0" y="40" width="400" height="320" uuid="bf9f29b3-51c1-472d-822b-e7e4b20fa160"/>
                <chartTitle/>
                <chartSubtitle/>
                <chartLegend/>
            </chart>
            <pieDataset>
                <keyExpression><![CDATA[$F{status}]]></keyExpression>
                <valueExpression><![CDATA[$F{count_status}]]></valueExpression>
                <labelExpression><![CDATA["" + $F{percent_status} + "% " + $F{status}]]></labelExpression>
            </pieDataset>
            <piePlot>
                <plot>
                    <seriesColor seriesOrder="0" color="#33F54A"/>
                    <seriesColor seriesOrder="1" color="#EB73C1"/>
                    <seriesColor seriesOrder="2" color="#433DF2"/>
                    <seriesColor seriesOrder="3" color="#FAEC52"/>
                    <seriesColor seriesOrder="4" color="#FFC342"/>
                    <seriesColor seriesOrder="5" color="#D9D2D8"/>
                    <seriesColor seriesOrder="6" color="#DE522F"/>
                </plot>
                <itemLabel/>
            </piePlot>
        </pieChart>
    </band>
</summary>
      
      



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<subreport>
    <reportElement x="460" y="40" width="650" height="320" uuid="e0d58e35-b1da-4bcc-9978-fbda3028ff5a"/>
    <subreportParameter name="date_from_param">
        <subreportParameterExpression><![CDATA[$P{date_from_param}]]></subreportParameterExpression>
    </subreportParameter>
    <subreportParameter name="date_to_param">
        <subreportParameterExpression><![CDATA[$P{date_to_param}]]></subreportParameterExpression>
    </subreportParameter>
    <subreportParameter name="systems_param">
        <subreportParameterExpression><![CDATA[$P{systems_param}]]></subreportParameterExpression>
    </subreportParameter>
    <subreportParameter name="status_param">
        <subreportParameterExpression><![CDATA[$P{status_param}]]></subreportParameterExpression>
    </subreportParameter>
    <subreportParameter name="entities_param">
        <subreportParameterExpression><![CDATA[$P{entities_param}]]></subreportParameterExpression>
    </subreportParameter>
    <subreportParameter name="group_param">
        <subreportParameterExpression><![CDATA[$P{group_param}]]></subreportParameterExpression>
    </subreportParameter>
    <connectionExpression><![CDATA[$P{REPORT_CONNECTION}]]></connectionExpression>
    <subreportExpression><![CDATA["repo:pubsub_grapf.jrxml"]]></subreportExpression>
</subreport>
      
      



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