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/*
 * Copyright (C) 2019  Consiglio Nazionale delle Ricerche
 *
 *     This program is free software: you can redistribute it and/or modify
 *     it under the terms of the GNU Affero General Public License as
 *     published by the Free Software Foundation, either version 3 of the
 *     License, or (at your option) any later version.
 *
 *     This program is distributed in the hope that it will be useful,
 *     but WITHOUT ANY WARRANTY; without even the implied warranty of
 *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *     GNU Affero General Public License for more details.
 *
 *     You should have received a copy of the GNU Affero General Public License
 *     along with this program.  If not, see .
 */

package it.cnr.contab.anagraf00.comp;

import it.cnr.contab.client.docamm.Tariffario;
import it.cnr.contab.config00.sto.bulk.Unita_organizzativaBulk;
import it.cnr.contab.docamm00.ejb.FatturaAttivaSingolaComponentSession;
import it.cnr.contab.docamm00.ejb.TariffarioComponentSession;
import it.cnr.contab.docamm00.tabrif.bulk.TariffarioBulk;
import it.cnr.contab.utenze00.bp.Costanti;
import it.cnr.contab.utenze00.bp.WSUserContext;
import it.cnr.jada.UserContext;
import it.cnr.jada.comp.ComponentException;
import org.w3c.dom.DOMImplementation;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;

import javax.ejb.EJB;
import javax.ejb.Stateless;
import javax.jws.WebService;
import javax.xml.bind.annotation.XmlSeeAlso;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import javax.xml.soap.*;
import javax.xml.transform.OutputKeys;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerException;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.dom.DOMSource;
import javax.xml.transform.stream.StreamResult;
import javax.xml.ws.soap.SOAPFaultException;
import java.io.StringWriter;
import java.rmi.RemoteException;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;

/**
 * Questa classe svolge le operazioni fondamentali di lettura, scrittura e
 * filtro dei dati immessi o richiesti dall'utente. In oltre sovrintende alla
 * gestione e creazione dati a cui l'utente stesso non ha libero accesso e/o non
 * gli sono trasparenti.
 */
@Stateless
@WebService(endpointInterface = "it.cnr.contab.anagraf00.ejb.TariffarioComponentSessionWS")
@XmlSeeAlso({java.util.ArrayList.class})


public class TariffarioComponentWS {
    @EJB
    FatturaAttivaSingolaComponentSession fatturaAttivaSingolaComponentSession;
    @EJB
    TariffarioComponentSession tariffarioComponentSession;


    public java.util.ArrayList cercaTariffario(String uo,
                                                           String query, String dominio, Integer numMax, String user,
                                                           String ricerca) throws Exception {
        java.util.ArrayList listatariffari = new ArrayList();
        List tariffari = null;
        try {

            if (user == null)
                user = "IIT";
            if (ricerca == null)
                ricerca = "selettiva";
            if (numMax == null)
                numMax = 20;

            UserContext userContext = new WSUserContext(user, null,
                    new Integer(java.util.Calendar.getInstance().get(
                            java.util.Calendar.YEAR)), null, null, null);
            if (uo == null)
                throw new SOAPFaultException(faultUONonDefinita());
            if (query == null) {
                throw new SOAPFaultException(faultQueryNonDefinita());
            } else if (dominio == null
                    || (!dominio.equalsIgnoreCase("codice") && !dominio
                    .equalsIgnoreCase("descrizione"))) {
                throw new SOAPFaultException(faultDominioNonDefinito());
            } else {
                try {
                    Unita_organizzativaBulk uo_db = new Unita_organizzativaBulk();
                    uo_db = (((Unita_organizzativaBulk) fatturaAttivaSingolaComponentSession
                            .completaOggetto(userContext,
                                    new Unita_organizzativaBulk(uo))));
                    if (uo_db == null)
                        throw new SOAPFaultException(faultUONonDefinita());
                    else
                        tariffari = tariffarioComponentSession
                                .findListaTariffariWS(userContext, uo, query,
                                        dominio, ricerca);
                } catch (ComponentException e) {
                    throw new SOAPFaultException(faultGenerico());
                } catch (RemoteException e) {
                    throw new SOAPFaultException(faultGenerico());
                }
            }

            int num = 0;
            if (tariffari != null && !tariffari.isEmpty()) {
                for (Iterator i = tariffari.iterator(); i.hasNext()
                        && num < new Integer(numMax).intValue(); ) {
                    TariffarioBulk tariffario = (TariffarioBulk) i.next();
                    Tariffario tar = new Tariffario();
                    tar.setCodice(tariffario.getCd_tariffario());
                    tar.setDescrizione(tariffario.getDs_tariffario());
                    tar.setImporto(tariffario.getIm_tariffario());
                    tar.setIva(tariffario.getVoce_iva().getCd_voce_iva());
                    tar.setMisura(tariffario.getUnita_misura());
                    listatariffari.add(tar);
                    num++;
                }
            }
            return listatariffari;
        } catch (SOAPFaultException e) {
            throw e;
        } catch (Exception e) {
            throw new SOAPFaultException(faultGenerico());
        }
    }


    public String cercaTariffarioXml(String uo, String query, String dominio,
                                     String numMax, String user, String ricerca) throws Exception {
        List tariffari = null;
        UserContext userContext = new WSUserContext(user, null, new Integer(
                java.util.Calendar.getInstance().get(java.util.Calendar.YEAR)),
                null, null, null);
        if (uo == null)
            throw new SOAPFaultException(faultUONonDefinita());
        if (query == null) {
            throw new SOAPFaultException(faultQueryNonDefinita());
        } else if (dominio == null
                || (!dominio.equalsIgnoreCase("codice") && !dominio
                .equalsIgnoreCase("descrizione"))) {
            throw new SOAPFaultException(faultDominioNonDefinito());
        } else {
            try {
                Unita_organizzativaBulk uo_db = new Unita_organizzativaBulk();
                uo_db = (((Unita_organizzativaBulk) fatturaAttivaSingolaComponentSession
                        .completaOggetto(userContext,
                                new Unita_organizzativaBulk(uo))));
                if (uo_db == null)
                    throw new SOAPFaultException(faultUONonDefinita());
                else
                    tariffari = tariffarioComponentSession
                            .findListaTariffariWS(userContext, uo, query,
                                    dominio, ricerca);
            } catch (ComponentException e) {
                throw new SOAPFaultException(faultGenerico());
            } catch (RemoteException e) {
                throw new SOAPFaultException(faultGenerico());
            }
        }
        try {
            return generaXML(numMax, tariffari);
        } catch (Exception e) {
            throw new SOAPFaultException(faultGenerico());
        }
    }

    private SOAPFault faultGenerico() throws SOAPException {
        return generaFault(Costanti.ERRORE_WS_100.toString(),
                Costanti.erroriWS.get(Costanti.ERRORE_WS_100));
    }

    private SOAPFault faultQueryNonDefinita() throws SOAPException {
        return generaFault(Costanti.ERRORE_WS_101.toString(),
                Costanti.erroriWS.get(Costanti.ERRORE_WS_101));
    }

    private SOAPFault faultDominioNonDefinito() throws SOAPException {
        return generaFault(Costanti.ERRORE_WS_102.toString(),
                Costanti.erroriWS.get(Costanti.ERRORE_WS_102));
    }

    private SOAPFault faultUONonDefinita() throws SOAPException {
        return generaFault(Costanti.ERRORE_WS_105.toString(),
                Costanti.erroriWS.get(Costanti.ERRORE_WS_105));
    }

    public String generaXML(String numMax, List tariffari)
            throws ParserConfigurationException, TransformerException {
        if (numMax == null)
            numMax = new Integer(20).toString();
        DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
        DocumentBuilder builder = factory.newDocumentBuilder();
        DOMImplementation impl = builder.getDOMImplementation();
        Document xmldoc = impl.createDocument(null, "root", null);
        Element root = xmldoc.getDocumentElement();
        root.setAttributeNS("http://www.w3.org/2001/XMLSchema-instance",
                "xsi:noNamespaceSchemaLocation",
                "https://contab.cnr.it/SIGLA/schema/cercatariffario.xsd");

        root.appendChild(generaNumeroTariffari(xmldoc, tariffari));
        int num = 0;
        if (tariffari != null && !tariffari.isEmpty()) {
            for (Iterator i = tariffari.iterator(); i.hasNext()
                    && num < new Integer(numMax).intValue(); ) {
                TariffarioBulk tariffario = (TariffarioBulk) i.next();
                root.appendChild(generaDettaglioTariffari(xmldoc, tariffario
                                .getCd_tariffario(), tariffario.getDs_tariffario(),
                        tariffario.getIm_tariffario(), tariffario.getVoce_iva()
                                .getCd_voce_iva(), tariffario.getUnita_misura()));
                num++;
            }
        }

        DOMSource domSource = new DOMSource(xmldoc);
        StringWriter domWriter = new StringWriter();
        StreamResult streamResult = new StreamResult(domWriter);

        TransformerFactory tf = TransformerFactory.newInstance();
        Transformer serializer = tf.newTransformer();
        serializer.setOutputProperty(OutputKeys.ENCODING, "UTF-8");
        // serializer.setOutputProperty(OutputKeys.DOCTYPE_SYSTEM,"http://150.146.206.250/DTD/cercaterzi.dtd");
        // serializer.setOutputProperty(OutputKeys.DOCTYPE_PUBLIC,"cercatariffari");
        serializer.setOutputProperty(OutputKeys.INDENT, "yes");
        serializer.setOutputProperty(OutputKeys.STANDALONE, "no");
        serializer.transform(domSource, streamResult);
        return domWriter.toString();
    }

    private Element generaNumeroTariffari(Document xmldoc, List tariffari) {
        Element e = xmldoc.createElement("numris");
        Node n = xmldoc
                .createTextNode(new Integer(tariffari.size()).toString());
        e.appendChild(n);
        return e;
    }

    private Element generaDettaglioTariffari(Document xmldoc, String codice,
                                             String descrizione, java.math.BigDecimal importo, String voce_iva,
                                             String misura) {
        Element element = xmldoc.createElement("tariffario");
        Element elementCodice = xmldoc.createElement("codice");
        Node nodeCodice = xmldoc.createTextNode(codice);
        elementCodice.appendChild(nodeCodice);
        element.appendChild(elementCodice);

        Element elementDenominazione = xmldoc.createElement("descrizione");
        Node nodeDenominazione = xmldoc.createTextNode(descrizione == null ? ""
                : descrizione);
        elementDenominazione.appendChild(nodeDenominazione);
        element.appendChild(elementDenominazione);

        Element elementImporto = xmldoc.createElement("importo");
        Node nodeImporto = xmldoc.createTextNode(importo == null ? "" : importo
                .toString());
        elementImporto.appendChild(nodeImporto);
        element.appendChild(elementImporto);

        Element elementVoce = xmldoc.createElement("iva");
        Node nodeIva = xmldoc.createTextNode(voce_iva == null ? "" : voce_iva);
        elementVoce.appendChild(nodeIva);
        element.appendChild(elementVoce);

        Element elementMisura = xmldoc.createElement("misura");
        Node nodeMisura = xmldoc.createTextNode(misura == null ? "" : misura);
        elementMisura.appendChild(nodeMisura);
        element.appendChild(elementMisura);

        return element;
    }

    private SOAPFault generaFault(String localName, String stringFault)
            throws SOAPException {
        MessageFactory factory = MessageFactory.newInstance();
        SOAPMessage message = factory.createMessage();
        SOAPFactory soapFactory = SOAPFactory.newInstance();
        SOAPBody body = message.getSOAPBody();
        SOAPFault fault = body.addFault();
        Name faultName = soapFactory.createName(localName, "",
                SOAPConstants.URI_NS_SOAP_ENVELOPE);
        fault.setFaultCode(faultName);
        fault.setFaultString(stringFault);
        return fault;
    }
}