AbstractValidatoreXSD.java

  1. /*
  2.  * GovWay - A customizable API Gateway 
  3.  * https://govway.org
  4.  * 
  5.  * Copyright (c) 2005-2025 Link.it srl (https://link.it). 
  6.  * 
  7.  * This program is free software: you can redistribute it and/or modify
  8.  * it under the terms of the GNU General Public License version 3, as published by
  9.  * the Free Software Foundation.
  10.  *
  11.  * This program is distributed in the hope that it will be useful,
  12.  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13.  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14.  * GNU General Public License for more details.
  15.  *
  16.  * You should have received a copy of the GNU General Public License
  17.  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  18.  *
  19.  */



  23. package org.openspcoop2.utils.xml;

  25. import java.io.ByteArrayInputStream;
  26. import java.io.File;
  27. import java.io.InputStream;

  29. import javax.xml.XMLConstants;
  30. import javax.xml.transform.Source;
  31. import javax.xml.transform.dom.DOMSource;
  32. import javax.xml.transform.stream.StreamSource;
  33. import javax.xml.validation.Schema;
  34. import javax.xml.validation.SchemaFactory;
  35. import javax.xml.validation.Validator;

  37. import org.slf4j.Logger;
  38. import org.w3c.dom.Node;
  39. import org.w3c.dom.ls.LSResourceResolver;
  40. import org.xml.sax.ErrorHandler;
  41. import org.xml.sax.SAXException;


  44. /**
  45.  * Classe utilizzata per effettuare una validazione con schema xsd di un messaggio.
  46.  *
  47.  *
  48.  * @author Poli Andrea (apoli@link.it)
  49.  * @author $Author$
  50.  * @version $Rev$, $Date$
  51.  */

  53. public abstract class AbstractValidatoreXSD {


  56.     /** StreamSource */
  57.     private Schema schema;
  58.     public Schema getSchema() {
  59.         return this.schema;
  60.     }
  61.     
  62.     
  63.     
  64.     /** ----------------- COSTRUTTORE SCHEMA -----------------
  65.     
  66.     /** 
  67.      * Costruttore
  68.      * 
  69.      * @param schema
  70.      */
  71.     public AbstractValidatoreXSD(Schema schema)throws Exception{
  72.         try{
  73.             if(schema == null)
  74.                 throw new Exception("Schema is null?");
  75.             this.schema = schema;
  76.         }catch(Exception e){
  77.             throw new Exception("Riscontrato errore durante la costruzione dello schema (InputStream): "+e.getMessage(),e);
  78.         }
  79.     }
  80.     
  81.     
  82.     
  83.     
  84.     /** ----------------- COSTRUTTORE INPUT STREAM ----------------- */
  85.     
  86.     private static final String FACTORY_DEFAULT = "FactoryDefault";
  87.     
  88.     /** 
  89.      * Costruttore InputStream
  90.      * 
  91.      * @param inputStream
  92.      */
  93.     public AbstractValidatoreXSD(Logger log,InputStream inputStream)throws Exception{
  94.         this(log,AbstractValidatoreXSD.FACTORY_DEFAULT,inputStream);
  95.     }
  96.     public AbstractValidatoreXSD(Logger log,String schemaFactory,InputStream inputStream)throws Exception{
  97.         try{
  98.             StreamSource streamSource = new StreamSource(inputStream);  
  99.             this.initializeSchema(log,schemaFactory,null,streamSource);
  100.         }catch(Exception e){
  101.             throw new Exception("Riscontrato errore durante la costruzione dello schema (InputStream): "+e.getMessage(),e);
  102.         }
  103.     }
  104.     
  105.     public AbstractValidatoreXSD(Logger log,LSResourceResolver lsResourceResolver,InputStream inputStream)throws Exception{
  106.         this(log,AbstractValidatoreXSD.FACTORY_DEFAULT,lsResourceResolver,inputStream);
  107.     }
  108.     public AbstractValidatoreXSD(Logger log,String schemaFactory,LSResourceResolver lsResourceResolver,InputStream inputStream)throws Exception{
  109.         try{
  110.             StreamSource streamSource = new StreamSource(inputStream);  
  111.             this.initializeSchema(log,schemaFactory,lsResourceResolver,streamSource);
  112.         }catch(Exception e){
  113.             throw new Exception("Riscontrato errore durante la costruzione dello schema (InputStream): "+e.getMessage(),e);
  114.         }
  115.     }
  116.     
  117.     public AbstractValidatoreXSD(Logger log,InputStream... inputStream)throws Exception{
  118.         this(log,AbstractValidatoreXSD.FACTORY_DEFAULT,inputStream);
  119.     }
  120.     public AbstractValidatoreXSD(Logger log,String schemaFactory,InputStream... inputStream)throws Exception{
  121.         try{
  122.             StreamSource [] ss = new StreamSource[inputStream.length];
  123.             for(int i=0; i<inputStream.length; i++){
  124.                 ss[i] = new StreamSource(inputStream[i]);
  125.             }
  126.             this.initializeSchema(log,schemaFactory,null,ss);
  127.         }catch(Exception e){
  128.             throw new Exception("Riscontrato errore durante la costruzione dello schema (InputStream): "+e.getMessage(),e);
  129.         }
  130.     }
  131.     
  132.     public AbstractValidatoreXSD(Logger log,LSResourceResolver lsResourceResolver,InputStream... inputStream)throws Exception{
  133.         this(log,AbstractValidatoreXSD.FACTORY_DEFAULT,lsResourceResolver,inputStream);
  134.     }
  135.     public AbstractValidatoreXSD(Logger log,String schemaFactory,LSResourceResolver lsResourceResolver,InputStream... inputStream)throws Exception{
  136.         try{
  137.             StreamSource [] ss = new StreamSource[inputStream.length];
  138.             for(int i=0; i<inputStream.length; i++){
  139.                 ss[i] = new StreamSource(inputStream[i]);
  140.             }
  141.             this.initializeSchema(log,schemaFactory,lsResourceResolver,ss);
  142.         }catch(Exception e){
  143.             throw new Exception("Riscontrato errore durante la costruzione dello schema (InputStream): "+e.getMessage(),e);
  144.         }
  145.     }
  146.     
  147.     
  148.     
  149.     /** ----------------- COSTRUTTORE FILE -----------------
  150.     
  151.     /**
  152.      * Costruttore File
  153.      * 
  154.      * @param file
  155.      */
  156.     public AbstractValidatoreXSD(Logger log,File file)throws Exception{
  157.         this(log,AbstractValidatoreXSD.FACTORY_DEFAULT,file);
  158.     }
  159.     public AbstractValidatoreXSD(Logger log,String schemaFactory,File file)throws Exception{
  160.         try{
  161.             StreamSource streamSource = new StreamSource(file); 
  162.             this.initializeSchema(log,schemaFactory,null,streamSource);
  163.         }catch(Exception e){
  164.             throw new Exception("Riscontrato errore durante la costruzione dello schema (File:"+file.getName()+"): "+e.getMessage(),e);
  165.         }
  166.     }
  167.     
  168.     public AbstractValidatoreXSD(Logger log,LSResourceResolver lsResourceResolver,File file)throws Exception{
  169.         this(log,AbstractValidatoreXSD.FACTORY_DEFAULT,lsResourceResolver,file);
  170.     }
  171.     public AbstractValidatoreXSD(Logger log,String schemaFactory,LSResourceResolver lsResourceResolver,File file)throws Exception{
  172.         try{
  173.             StreamSource streamSource = new StreamSource(file); 
  174.             this.initializeSchema(log,schemaFactory,lsResourceResolver,streamSource);
  175.         }catch(Exception e){
  176.             throw new Exception("Riscontrato errore durante la costruzione dello schema (File:"+file.getName()+"): "+e.getMessage(),e);
  177.         }
  178.     }
  179.     
  180.     public AbstractValidatoreXSD(Logger log,File... file)throws Exception{
  181.         this(log,AbstractValidatoreXSD.FACTORY_DEFAULT,file);
  182.     }
  183.     public AbstractValidatoreXSD(Logger log,String schemaFactory,File... file)throws Exception{
  184.         try{
  185.             StreamSource [] ss = new StreamSource[file.length];
  186.             for(int i=0; i<file.length; i++){
  187.                 ss[i] = new StreamSource(file[i]);
  188.             }
  189.             this.initializeSchema(log,schemaFactory,null,ss);
  190.         }catch(Exception e){
  191.             throw new Exception("Riscontrato errore durante la costruzione dello schema (Files): "+e.getMessage(),e);
  192.         }
  193.     }
  194.     
  195.     public AbstractValidatoreXSD(Logger log,LSResourceResolver lsResourceResolver,File... file)throws Exception{
  196.         this(log,AbstractValidatoreXSD.FACTORY_DEFAULT,lsResourceResolver,file);
  197.     }
  198.     public AbstractValidatoreXSD(Logger log,String schemaFactory,LSResourceResolver lsResourceResolver,File... file)throws Exception{
  199.         try{
  200.             StreamSource [] ss = new StreamSource[file.length];
  201.             for(int i=0; i<file.length; i++){
  202.                 ss[i] = new StreamSource(file[i]);
  203.             }
  204.             this.initializeSchema(log,schemaFactory,lsResourceResolver,ss);
  205.         }catch(Exception e){
  206.             throw new Exception("Riscontrato errore durante la costruzione dello schema (Files): "+e.getMessage(),e);
  207.         }
  208.     }
  209.     
  210.     
  211.     
  212.     /** ----------------- COSTRUTTORE URL -----------------
  213.     
  214.     /**
  215.      * Costruttore url
  216.      * 
  217.      * @param url
  218.      */
  219.     public AbstractValidatoreXSD(Logger log,String url)throws Exception{
  220.         this(log,AbstractValidatoreXSD.FACTORY_DEFAULT,url);
  221.     }
  222.     public AbstractValidatoreXSD(Logger log,String schemaFactory,String url)throws Exception{
  223.         try{
  224.             StreamSource streamSource = new StreamSource(url);  
  225.             this.initializeSchema(log,schemaFactory,null,streamSource);
  226.         }catch(Exception e){
  227.             throw new Exception("Riscontrato errore durante la costruzione dello schema (URL:"+url+"): "+e.getMessage(),e);
  228.         }
  229.     }
  230.     
  231.     public AbstractValidatoreXSD(Logger log,LSResourceResolver lsResourceResolver,String url)throws Exception{
  232.         this(log,AbstractValidatoreXSD.FACTORY_DEFAULT,lsResourceResolver,url);
  233.     }
  234.     public AbstractValidatoreXSD(Logger log,String schemaFactory,LSResourceResolver lsResourceResolver,String url)throws Exception{
  235.         try{
  236.             StreamSource streamSource = new StreamSource(url);  
  237.             this.initializeSchema(log,schemaFactory,lsResourceResolver,streamSource);
  238.         }catch(Exception e){
  239.             throw new Exception("Riscontrato errore durante la costruzione dello schema (URL:"+url+"): "+e.getMessage(),e);
  240.         }
  241.     }
  242.     
  243.     public AbstractValidatoreXSD(Logger log,String... url)throws Exception{
  244.         this(log,AbstractValidatoreXSD.FACTORY_DEFAULT,url);
  245.     }
  246.     public AbstractValidatoreXSD(Logger log,String schemaFactory,String... url)throws Exception{
  247.         try{
  248.             StreamSource [] ss = new StreamSource[url.length];
  249.             for(int i=0; i<url.length; i++){
  250.                 ss[i] = new StreamSource(url[i]);
  251.             }
  252.             this.initializeSchema(log,schemaFactory,null,ss);
  253.         }catch(Exception e){
  254.             StringBuilder sb = new StringBuilder();
  255.             if(url!=null) {
  256.                 for (String u : url) {
  257.                     if(sb.length()>0) {
  258.                         sb.append(", ");
  259.                     }
  260.                     sb.append(u);
  261.                 }
  262.             }
  263.             throw new Exception("Riscontrato errore durante la costruzione dello schema (URL:"+sb.toString()+"): "+e.getMessage(),e);
  264.         }
  265.     }
  266.     
  267.     public AbstractValidatoreXSD(Logger log,LSResourceResolver lsResourceResolver,String... url)throws Exception{
  268.         this(log,AbstractValidatoreXSD.FACTORY_DEFAULT,lsResourceResolver,url);
  269.     }
  270.     public AbstractValidatoreXSD(Logger log,String schemaFactory,LSResourceResolver lsResourceResolver,String... url)throws Exception{
  271.         try{
  272.             StreamSource [] ss = new StreamSource[url.length];
  273.             for(int i=0; i<url.length; i++){
  274.                 ss[i] = new StreamSource(url[i]);
  275.             }
  276.             this.initializeSchema(log,schemaFactory,lsResourceResolver,ss);
  277.         }catch(Exception e){
  278.             StringBuilder sb = new StringBuilder();
  279.             if(url!=null) {
  280.                 for (String u : url) {
  281.                     if(sb.length()>0) {
  282.                         sb.append(", ");
  283.                     }
  284.                     sb.append(u);
  285.                 }
  286.             }
  287.             throw new Exception("Riscontrato errore durante la costruzione dello schema (URL:"+sb.toString()+"): "+e.getMessage(),e);
  288.         }
  289.     }
  290.     
  291.     
  292.     
  293.     
  294.     
  295.     
  296.     
  297.     
  298.     /** ----------------- COSTRUTTORE NODE -----------------
  299.     
  300.     /**
  301.      * Costruttore node
  302.      * 
  303.      * @param schema
  304.      */
  305.     public AbstractValidatoreXSD(Logger log,Node schema)throws Exception{
  306.         this(log,AbstractValidatoreXSD.FACTORY_DEFAULT,schema);
  307.     }
  308.     public AbstractValidatoreXSD(Logger log,String schemaFactory,Node schema)throws Exception{
  309.         try{
  310.             DOMSource streamSource = new DOMSource(schema); 
  311.             this.initializeSchema(log,schemaFactory,null,streamSource);
  312.         }catch(Exception e){
  313.             throw new Exception("Riscontrato errore durante la costruzione dello schema (Node): "+e.getMessage(),e);
  314.         }
  315.     }
  316.     
  317.     public AbstractValidatoreXSD(Logger log,LSResourceResolver lsResourceResolver,Node schema)throws Exception{
  318.         this(log,AbstractValidatoreXSD.FACTORY_DEFAULT,lsResourceResolver,schema);
  319.     }
  320.     public AbstractValidatoreXSD(Logger log,String schemaFactory,LSResourceResolver lsResourceResolver,Node schema)throws Exception{
  321.         try{
  322.             DOMSource streamSource = new DOMSource(schema); 
  323.             this.initializeSchema(log,schemaFactory,lsResourceResolver,streamSource);
  324.         }catch(Exception e){
  325.             throw new Exception("Riscontrato errore durante la costruzione dello schema (Node): "+e.getMessage(),e);
  326.         }
  327.     }
  328.     
  329.     public AbstractValidatoreXSD(Logger log,Node... schema)throws Exception{
  330.         this(log,AbstractValidatoreXSD.FACTORY_DEFAULT,schema);
  331.     }
  332.     public AbstractValidatoreXSD(Logger log,String schemaFactory,Node... schema)throws Exception{
  333.         try{
  334.             DOMSource [] ss = new DOMSource[schema.length];
  335.             for(int i=0; i<schema.length; i++){
  336.                 ss[i] = new DOMSource(schema[i]);
  337.             }
  338.             this.initializeSchema(log,schemaFactory,null,ss);
  339.         }catch(Exception e){
  340.             throw new Exception("Riscontrato errore durante la costruzione dello schema (Node): "+e.getMessage(),e);
  341.         }
  342.     }
  343.     
  344.     public AbstractValidatoreXSD(Logger log,LSResourceResolver lsResourceResolver,Node... schema)throws Exception{
  345.         this(log,AbstractValidatoreXSD.FACTORY_DEFAULT,lsResourceResolver,schema);
  346.     }
  347.     public AbstractValidatoreXSD(Logger log,String schemaFactory,LSResourceResolver lsResourceResolver,Node... schema)throws Exception{
  348.         try{
  349.             DOMSource [] ss = new DOMSource[schema.length];
  350.             for(int i=0; i<schema.length; i++){
  351.                 ss[i] = new DOMSource(schema[i]);
  352.             }
  353.             this.initializeSchema(log,schemaFactory,lsResourceResolver,ss);
  354.         }catch(Exception e){
  355.             throw new Exception("Riscontrato errore durante la costruzione dello schema (Node): "+e.getMessage(),e);
  356.         }
  357.     }
  358.     
  359.     
  360.     
  361.     
  362.     
  363.     
  364.     
  365.     
  366.     
  367.     
  368.     
  369.     
  370.     
  371.     
  372.     /** ----------------- COSTRUTTORE SOURCE GENERICO -----------------
  373.     
  374.     /**
  375.      * Costruttore source
  376.      * 
  377.      * @param source
  378.      */
  379.     public AbstractValidatoreXSD(Logger log,Source source)throws Exception{
  380.         this(log,AbstractValidatoreXSD.FACTORY_DEFAULT,source);
  381.     }
  382.     public AbstractValidatoreXSD(Logger log,String schemaFactory,Source source)throws Exception{
  383.         try{
  384.             this.initializeSchema(log,schemaFactory,null,source);
  385.         }catch(Exception e){
  386.             throw new Exception("Riscontrato errore durante la costruzione dello schema (Source): "+e.getMessage(),e);
  387.         }
  388.     }
  389.     
  390.     public AbstractValidatoreXSD(Logger log,LSResourceResolver lsResourceResolver,Source source)throws Exception{
  391.         this(log,AbstractValidatoreXSD.FACTORY_DEFAULT,lsResourceResolver,source);
  392.     }
  393.     public AbstractValidatoreXSD(Logger log,String schemaFactory,LSResourceResolver lsResourceResolver,Source source)throws Exception{
  394.         try{
  395.             this.initializeSchema(log,schemaFactory,lsResourceResolver,source);
  396.         }catch(Exception e){
  397.             throw new Exception("Riscontrato errore durante la costruzione dello schema (Source): "+e.getMessage(),e);
  398.         }
  399.     }
  400.     
  401.     public AbstractValidatoreXSD(Logger log,Source... source)throws Exception{
  402.         this(log,AbstractValidatoreXSD.FACTORY_DEFAULT,source);
  403.     }
  404.     public AbstractValidatoreXSD(Logger log,String schemaFactory,Source... source)throws Exception{
  405.         try{
  406.             this.initializeSchema(log,schemaFactory,null,source);
  407.         }catch(Exception e){
  408.             throw new Exception("Riscontrato errore durante la costruzione dello schema (Source): "+e.getMessage(),e);
  409.         }
  410.     }
  411.     
  412.     public AbstractValidatoreXSD(Logger log,LSResourceResolver lsResourceResolver,Source... source)throws Exception{
  413.         this(log,AbstractValidatoreXSD.FACTORY_DEFAULT,lsResourceResolver,source);
  414.     }
  415.     public AbstractValidatoreXSD(Logger log,String schemaFactory,LSResourceResolver lsResourceResolver,Source... source)throws Exception{
  416.         try{
  417.             this.initializeSchema(log,schemaFactory,lsResourceResolver,source);
  418.         }catch(Exception e){
  419.             throw new Exception("Riscontrato errore durante la costruzione dello schema (Source): "+e.getMessage(),e);
  420.         }
  421.     }
  422.     
  423.     
  424.     
  425.     
  426.     
  427.     
  428.     
  429.     
  430.     
  431.     
  432.     
  433.     
  434.     
  435.     
  436.     /** ----------------- INIT SCHEMA ----------------- **/
  437.     
  438.     public abstract AbstractXMLUtils getXMLUtils();
  439.     
  440.     /**
  441.      * Metodo che si occupa di inizializzare lo schema per la validazione.
  442.      *
  443.      * 
  444.      */
  445.     private void initializeSchema(Logger log,String schemaFactory,LSResourceResolver lsResourceResolver,Source streamSource) throws Exception{
  446.         try{
  447.             
  448.             // La gestione dello schemaFactory e' servito per il seguente motivo:
  449.             // UndeclaredPrefix: Cannot resolve 'messaggioSII:xxxxMessaggioSIIType' as a QName: the prefix 'messaggioSII' is not declared.
  450.             // After some debugging, I've found out that this is a bug of the JAXP api's built in to the JDK.
  451.             // You can fix it by making sure that you use the Xerces version of the SchemaFactory, and not the JDK internal one. 
  452.             // The algorithm for choosing a SchemaFactory is explained at http://java.sun.com/j2se/1.5.0/docs/api/javax/xml/validation/SchemaFactory.html#newInstance(java.lang.String).
  453.             // It comes down to setting the System property "javax.xml.validation.SchemaFactory:http://www.w3.org/2001/XMLSchema" to the value "org.apache.xerces.jaxp.validation.XMLSchemaFactory".
  454.             // Note that just adding Xerces to your classpath won't fix this, for reasons explained at http://xerces.apache.org/xerces2-j/faq-general.html#faq-4
  455.             
  456.             SchemaFactory factory = null;
  457.             if(schemaFactory!=null && !AbstractValidatoreXSD.FACTORY_DEFAULT.equals(schemaFactory)){
  458.                 factory =  SchemaFactory.newInstance(XMLConstants.W3C_XML_SCHEMA_NS_URI,
  459.                         schemaFactory, this.getClass().getClassLoader());
  460.                 if(this.getXMLUtils().isDisabledDTDs()) {
  461.                     factory.setFeature(this.getXMLUtils().getFeatures_disallow_doctype_decl(), true);
  462.                 }
  463.             }
  464.             else{
  465.                 factory = this.getXMLUtils().getSchemaFactory();
  466.             }
  467.             
  468. //          String oldSchemaFactorySetup = null;
  469. //          String propertySystem = "javax.xml.validation.SchemaFactory:"+XMLConstants.W3C_XML_SCHEMA_NS_URI;
  470. //          if(schemaFactory!=null && !AbstractValidatoreXSD.FACTORY_DEFAULT.equals(schemaFactory)){
  471. //              oldSchemaFactorySetup = System.getenv(propertySystem);
  472. //              if(oldSchemaFactorySetup==null){
  473. //                  oldSchemaFactorySetup = System.getProperty(propertySystem);
  474. //                  if(oldSchemaFactorySetup==null){
  475. //                      oldSchemaFactorySetup = "";
  476. //                  }
  477. //              }
  478. //              System.setProperty(propertySystem, schemaFactory);
  479. //          }
  480. //          SchemaFactory factory = SchemaFactory.newInstance(XMLConstants.W3C_XML_SCHEMA_NS_URI);
  481. //          if(this.getXMLUtils().isDisabledDTDs()) {
  482. //              factory.setFeature(this.getXMLUtils().getFeatures_disallow_doctype_decl(), true);
  483. //          }
  484.             log.info("SchemaFactory["+factory.getClass().getName()+"]");
  485.             if(lsResourceResolver!=null){
  486.                 factory.setResourceResolver(lsResourceResolver);
  487.             }
  488.             this.schema = factory.newSchema(streamSource);
  489. //          if(schemaFactory!=null && !AbstractValidatoreXSD.FACTORY_DEFAULT.equals(schemaFactory) && oldSchemaFactorySetup!=null){
  490. //              log.debug("Ripristino oldSchemaFactory ["+oldSchemaFactorySetup+"]");
  491. //              System.setProperty(propertySystem, oldSchemaFactorySetup);
  492. //          }
  493.         }catch (Exception e) {
  494.             throw new Exception("Riscontrato errore durante l'inizializzazione dello schema: "+e.getMessage(),e);
  495.         }
  496.     }
  497.     private void initializeSchema(Logger log,String schemaFactory,LSResourceResolver lsResourceResolver,Source[] streamSource) throws Exception{
  498.         try{
  499.             
  500.             // La gestione dello schemaFactory e' servito per il seguente motivo:
  501.             // UndeclaredPrefix: Cannot resolve 'messaggioSII:xxxxMessaggioSIIType' as a QName: the prefix 'messaggioSII' is not declared.
  502.             // After some debugging, I've found out that this is a bug of the JAXP api's built in to the JDK.
  503.             // You can fix it by making sure that you use the Xerces version of the SchemaFactory, and not the JDK internal one. 
  504.             // The algorithm for choosing a SchemaFactory is explained at http://java.sun.com/j2se/1.5.0/docs/api/javax/xml/validation/SchemaFactory.html#newInstance(java.lang.String).
  505.             // It comes down to setting the System property "javax.xml.validation.SchemaFactory:http://www.w3.org/2001/XMLSchema" to the value "org.apache.xerces.jaxp.validation.XMLSchemaFactory".
  506.             // Note that just adding Xerces to your classpath won't fix this, for reasons explained at http://xerces.apache.org/xerces2-j/faq-general.html#faq-4
  507.             
  508.             SchemaFactory factory = null;
  509.             if(schemaFactory!=null && !AbstractValidatoreXSD.FACTORY_DEFAULT.equals(schemaFactory)){
  510.                 factory =  SchemaFactory.newInstance(XMLConstants.W3C_XML_SCHEMA_NS_URI,
  511.                         schemaFactory, this.getClass().getClassLoader());
  512.                 if(this.getXMLUtils().isDisabledDTDs()) {
  513.                     factory.setFeature(this.getXMLUtils().getFeatures_disallow_doctype_decl(), true);
  514.                 }
  515.             }
  516.             else{
  517.                 factory = this.getXMLUtils().getSchemaFactory();
  518.             }
  519.             
  520. //          String oldSchemaFactorySetup = null;
  521. //          String propertySystem = "javax.xml.validation.SchemaFactory:"+XMLConstants.W3C_XML_SCHEMA_NS_URI;
  522. //          if(schemaFactory!=null && !AbstractValidatoreXSD.FACTORY_DEFAULT.equals(schemaFactory)){
  523. //              oldSchemaFactorySetup = System.getenv(propertySystem);
  524. //              if(oldSchemaFactorySetup==null){
  525. //                  oldSchemaFactorySetup = System.getProperty(propertySystem);
  526. //                  if(oldSchemaFactorySetup==null){
  527. //                      oldSchemaFactorySetup = "";
  528. //                  }
  529. //              }
  530. //              System.setProperty(propertySystem, schemaFactory);
  531. //          }
  532. //          SchemaFactory factory = SchemaFactory.newInstance(XMLConstants.W3C_XML_SCHEMA_NS_URI);
  533. //          if(this.getXMLUtils().isDisabledDTDs()) {
  534. //              factory.setFeature(this.getXMLUtils().getFeatures_disallow_doctype_decl(), true);
  535. //          }
  536.             log.info("SchemaFactory["+factory.getClass().getName()+"]");
  537.             if(lsResourceResolver!=null){
  538.                 factory.setResourceResolver(lsResourceResolver);
  539.             }
  540.             this.schema = factory.newSchema(streamSource);
  541. //          if(schemaFactory!=null && !AbstractValidatoreXSD.FACTORY_DEFAULT.equals(schemaFactory) && oldSchemaFactorySetup!=null){
  542. //              log.debug("Ripristino oldSchemaFactory ["+oldSchemaFactorySetup+"]");
  543. //              System.setProperty(propertySystem, oldSchemaFactorySetup);
  544. //          }
  545.         }catch (Exception e) {
  546.             throw new Exception("Riscontrato errore durante l'inizializzazione dello schema: "+e.getMessage(),e);
  547.         }
  548.     }
  549.     
  550.     
  551.     
  552.     
  553.     
  554.     /** ----------------- VALIDAZIONI -----------------
  555.     
  556.     
  557.     /**
  558.      * Metodo che effettua la validazione xsd. 
  559.      *
  560.      * @param nodeXML Node
  561.      */
  562.     public void valida(Node nodeXML) throws Exception{
  563.         valida(new DOMSourceFix(nodeXML));
  564.     }
  565.     public void valida(Node nodeXML,ErrorHandler errorHandler) throws Exception{
  566.         valida(new DOMSourceFix(nodeXML),errorHandler);
  567.     }
  568.     
  569.     /**
  570.      * Metodo che effettua la validazione xsd. 
  571.      *
  572.      * @param nodeXML Node
  573.      */
  574.     public void valida(Node nodeXML,boolean streamSource) throws Exception{
  575.         this.valida(nodeXML,streamSource,null);
  576.     }
  577.     public abstract byte[] getAsByte(Node nodeXML) throws XMLException;
  578.     public void valida(Node nodeXML,boolean streamSource,ErrorHandler errorHandler) throws Exception{
  579.         if(streamSource){
  580.             // Risolve il problema di validare gli attributi
  581.             ByteArrayInputStream bin = new ByteArrayInputStream(this.getAsByte(nodeXML));
  582.             valida(new StreamSource(bin),errorHandler);
  583.         }else{
  584.             valida(nodeXML,errorHandler);
  585.         }
  586.     }
  587.     
  588.     /**
  589.      * Metodo che effettua la validazione xsd. 
  590.      *
  591.      * @param inputStreamXML Input Stream di un contenuto xml
  592.      */
  593.     public void valida(InputStream inputStreamXML) throws Exception{
  594.         valida(new StreamSource(inputStreamXML));
  595.     }
  596.     public void valida(InputStream inputStreamXML,ErrorHandler errorHandler) throws Exception{
  597.         valida(new StreamSource(inputStreamXML),errorHandler);
  598.     }
  599.     
  600.     /**
  601.      * Metodo che effettua la validazione xsd. 
  602.      *
  603.      * @param fileXML File xml
  604.      */
  605.     public void valida(File fileXML) throws Exception{
  606.         valida(new StreamSource(fileXML));
  607.     }
  608.     public void valida(File fileXML,ErrorHandler errorHandler) throws Exception{
  609.         valida(new StreamSource(fileXML),errorHandler);
  610.     }
  611.     
  612.     /**
  613.      * Metodo che effettua la validazione xsd. 
  614.      *
  615.      * @param urlXML URL di un file xml
  616.      */
  617.     public void valida(String urlXML) throws Exception{
  618.         valida(new StreamSource(urlXML));
  619.     }
  620.     public void valida(String urlXML,ErrorHandler errorHandler) throws Exception{
  621.         valida(new StreamSource(urlXML),errorHandler);
  622.     }
  623.     
  624.     /**
  625.      * Metodo che effettua la validazione xsd. 
  626.      *
  627.      * @param source Sorgente da validare
  628.      */
  629.     public void valida(Source source) throws Exception{
  630.         this.valida(source, null);
  631.     }
  632.     public void valida(Source source,ErrorHandler errorHandler) throws Exception{
  633.         Validator validator  = this.schema.newValidator();
  634.         try {
  635.             if(errorHandler!=null){
  636.                 validator.setErrorHandler(errorHandler);
  637.             }
  638.             validator.validate(source);
  639.         } catch (SAXException e) {
  640.             // instance document is invalid!
  641.             throw e;
  642.         }
  643.     }
  644.     
  645.     
  646. }
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