TypesManager.java

   1 package org.argeo.cms.acr;
   2
   3 import java.io.IOException;
   4 import java.util.ArrayList;
   5 import java.util.HashMap;
   6 import java.util.List;
   7 import java.util.Map;
   8 import java.util.Set;
   9 import java.util.SortedMap;
  10 import java.util.TreeMap;
  11
  12 import javax.xml.XMLConstants;
  13 import javax.xml.namespace.QName;
  14 import javax.xml.parsers.DocumentBuilder;
  15 import javax.xml.parsers.DocumentBuilderFactory;
  16 import javax.xml.parsers.ParserConfigurationException;
  17 import javax.xml.transform.Source;
  18 import javax.xml.transform.stream.StreamSource;
  19 import javax.xml.validation.Schema;
  20 import javax.xml.validation.SchemaFactory;
  21 import javax.xml.validation.Validator;
  22
  23 import org.apache.xerces.impl.xs.XSImplementationImpl;
  24 import org.apache.xerces.impl.xs.util.StringListImpl;
  25 import org.apache.xerces.jaxp.DocumentBuilderFactoryImpl;
  26 import org.apache.xerces.xs.StringList;
  27 import org.apache.xerces.xs.XSAttributeDeclaration;
  28 import org.apache.xerces.xs.XSAttributeUse;
  29 import org.apache.xerces.xs.XSComplexTypeDefinition;
  30 import org.apache.xerces.xs.XSConstants;
  31 import org.apache.xerces.xs.XSElementDeclaration;
  32 import org.apache.xerces.xs.XSException;
  33 import org.apache.xerces.xs.XSImplementation;
  34 import org.apache.xerces.xs.XSLoader;
  35 import org.apache.xerces.xs.XSModel;
  36 import org.apache.xerces.xs.XSModelGroup;
  37 import org.apache.xerces.xs.XSNamedMap;
  38 import org.apache.xerces.xs.XSObjectList;
  39 import org.apache.xerces.xs.XSParticle;
  40 import org.apache.xerces.xs.XSSimpleTypeDefinition;
  41 import org.apache.xerces.xs.XSTerm;
  42 import org.apache.xerces.xs.XSTypeDefinition;
  43 import org.argeo.api.acr.CrAttributeType;
  44 import org.argeo.api.acr.NamespaceUtils;
  45 import org.argeo.api.acr.RuntimeNamespaceContext;
  46 import org.argeo.api.cms.CmsLog;
  47 import org.xml.sax.ErrorHandler;
  48 import org.xml.sax.SAXException;
  49 import org.xml.sax.SAXParseException;
  50
  51 /** Register content types. */
  52 class TypesManager {
  53         private final static CmsLog log = CmsLog.getLog(TypesManager.class);
  54 //      private Map<String, String> prefixes = new TreeMap<>();
  55
  56         // immutable factories
  57         private SchemaFactory schemaFactory;
  58
  59         /** Schema sources. */
  60         private List<Source> sources = new ArrayList<>();
  61
  62         // cached
  63         private Schema schema;
  64         private DocumentBuilderFactory documentBuilderFactory;
  65         private XSModel xsModel;
  66         private SortedMap<QName, Map<QName, CrAttributeType>> types;
  67
  68         private boolean validating = true;
  69
  70         private final static boolean limited = false;
  71
  72         public TypesManager() {
  73                 schemaFactory = SchemaFactory.newInstance(XMLConstants.W3C_XML_SCHEMA_NS_URI);
  74
  75                 // types
  76                 types = new TreeMap<>(NamespaceUtils.QNAME_COMPARATOR);
  77
  78         }
  79
  80         public void init() {
  81                 for (CmsContentTypes cs : CmsContentTypes.values()) {
  82                         if (cs.getResource() != null) {
  83                                 StreamSource source = new StreamSource(cs.getResource().toExternalForm());
  84                                 sources.add(source);
  85                         }
  86                         RuntimeNamespaceContext.register(cs.getNamespace(), cs.getDefaultPrefix());
  87                 }
  88
  89                 reload();
  90         }
  91
  92         public void registerTypes(String defaultPrefix, String namespace, String xsdSystemId) {
  93 //              if (prefixes.containsKey(defaultPrefix))
  94 //                      throw new IllegalStateException(
  95 //                                      "Prefix " + defaultPrefix + " is already mapped with " + prefixes.get(defaultPrefix));
  96 //              prefixes.put(defaultPrefix, namespace);
  97                 RuntimeNamespaceContext.register(namespace, defaultPrefix);
  98
  99                 if (xsdSystemId != null) {
 100                         sources.add(new StreamSource(xsdSystemId));
 101                         reload();
 102                 }
 103         }
 104
 105         public Set<QName> listTypes() {
 106                 return types.keySet();
 107         }
 108
 109         public Map<QName, CrAttributeType> getAttributeTypes(QName type) {
 110                 if (!types.containsKey(type))
 111                         throw new IllegalArgumentException("Unkown type");
 112                 return types.get(type);
 113         }
 114
 115         private synchronized void reload() {
 116                 try {
 117                         // schema
 118                         schema = schemaFactory.newSchema(sources.toArray(new Source[sources.size()]));
 119
 120                         // document builder factory
 121                         // we force usage of Xerces for predictability
 122                         documentBuilderFactory = limited ? DocumentBuilderFactory.newInstance() : new DocumentBuilderFactoryImpl();
 123                         documentBuilderFactory.setNamespaceAware(true);
 124                         if (!limited) {
 125                                 documentBuilderFactory.setXIncludeAware(true);
 126                                 documentBuilderFactory.setSchema(getSchema());
 127                                 documentBuilderFactory.setValidating(validating);
 128                         }
 129
 130                         // XS model
 131                         // TODO use JVM implementation?
 132 //                      DOMImplementationRegistry registry = DOMImplementationRegistry.newInstance();
 133 //                      XSImplementation implementation = (XSImplementation) registry.getDOMImplementation("XS-Loader");
 134                         XSImplementation xsImplementation = new XSImplementationImpl();
 135                         XSLoader xsLoader = xsImplementation.createXSLoader(null);
 136                         List<String> systemIds = new ArrayList<>();
 137                         for (Source source : sources) {
 138                                 systemIds.add(source.getSystemId());
 139                         }
 140                         StringList sl = new StringListImpl(systemIds.toArray(new String[systemIds.size()]), systemIds.size());
 141                         xsModel = xsLoader.loadURIList(sl);
 142
 143                         // types
 144 //                      XSNamedMap map = xsModel.getComponents(XSConstants.ELEMENT_DECLARATION);
 145 //                      for (int i = 0; i < map.getLength(); i++) {
 146 //                              XSElementDeclaration eDec = (XSElementDeclaration) map.item(i);
 147 //                              QName type = new QName(eDec.getNamespace(), eDec.getName());
 148 //                              types.add(type);
 149 //                      }
 150                         collectTypes();
 151                 } catch (XSException | SAXException e) {
 152                         throw new IllegalStateException("Cannot reload types", e);
 153                 }
 154         }
 155
 156         private void collectTypes() {
 157                 types.clear();
 158                 // elements
 159                 XSNamedMap topLevelElements = xsModel.getComponents(XSConstants.ELEMENT_DECLARATION);
 160                 for (int i = 0; i < topLevelElements.getLength(); i++) {
 161                         XSElementDeclaration eDec = (XSElementDeclaration) topLevelElements.item(i);
 162                         collectElementDeclaration("", eDec);
 163                 }
 164
 165                 // types
 166                 XSNamedMap topLevelTypes = xsModel.getComponents(XSConstants.TYPE_DEFINITION);
 167                 for (int i = 0; i < topLevelTypes.getLength(); i++) {
 168                         XSTypeDefinition tDef = (XSTypeDefinition) topLevelTypes.item(i);
 169                         collectType(tDef, null, null);
 170                 }
 171
 172         }
 173
 174         private void collectType(XSTypeDefinition tDef, String namespace, String nameHint) {
 175                 if (tDef.getTypeCategory() == XSTypeDefinition.COMPLEX_TYPE) {
 176                         XSComplexTypeDefinition ctDef = (XSComplexTypeDefinition) tDef;
 177                         if (ctDef.getContentType() != XSComplexTypeDefinition.CONTENTTYPE_SIMPLE
 178                                         || ctDef.getAttributeUses().getLength() > 0 || ctDef.getAttributeWildcard() != null) {
 179                                 collectComplexType("", null, ctDef);
 180                         } else {
 181                                 throw new IllegalArgumentException("Unsupported type " + tDef.getTypeCategory());
 182                         }
 183                 }
 184         }
 185
 186         private void collectComplexType(String prefix, QName parent, XSComplexTypeDefinition ctDef) {
 187                 if (ctDef.getContentType() == XSComplexTypeDefinition.CONTENTTYPE_SIMPLE) {
 188
 189                         // content with attributes and a string value
 190
 191                         XSSimpleTypeDefinition stDef = ctDef.getSimpleType();
 192                         // QName name = new QName(stDef.getNamespace(), stDef.getName());
 193                         // log.warn(prefix + "Simple " + ctDef + " - " + attributes);
 194 //                      System.err.println(prefix + "Simple from " + parent + " - " + attributes);
 195 //
 196 //                      if (parentAttributes != null) {
 197 //                              for (QName attr : attributes.keySet()) {
 198 //                                      if (!parentAttributes.containsKey(attr))
 199 //                                              System.err.println(prefix + " - " + attr + " not available in parent");
 200 //
 201 //                              }
 202 //                      }
 203
 204                 } else if (ctDef.getContentType() == XSComplexTypeDefinition.CONTENTTYPE_ELEMENT
 205                                 || ctDef.getContentType() == XSComplexTypeDefinition.CONTENTTYPE_MIXED) {
 206                         XSParticle p = ctDef.getParticle();
 207
 208                         collectParticle(prefix, p, false);
 209                 } else if (ctDef.getContentType() == XSComplexTypeDefinition.CONTENTTYPE_EMPTY) {
 210                         // Parent only contains attributes
 211 //                      if (parent != null)
 212 //                              System.err.println(prefix + "Empty from " + parent + " - " + attributes);
 213 //                      if (parentAttributes != null) {
 214 //                              for (QName attr : attributes.keySet()) {
 215 //                                      if (!parentAttributes.containsKey(attr))
 216 //                                              System.err.println(prefix + " - " + attr + " not available in parent");
 217 //
 218 //                              }
 219 //                      }
 220 //                      log.debug(prefix + "Empty " + ctDef.getNamespace() + ":" + ctDef.getName() + " - " + attributes);
 221                 } else {
 222                         throw new IllegalArgumentException("Unsupported type " + ctDef.getTypeCategory());
 223                 }
 224         }
 225
 226         private void collectParticle(String prefix, XSParticle particle, boolean multipleFromAbove) {
 227                 boolean orderable = false;
 228
 229                 XSTerm term = particle.getTerm();
 230
 231                 if (particle.getMaxOccurs() == 0) {
 232                         return;
 233                 }
 234
 235                 boolean mandatory = false;
 236                 if (particle.getMinOccurs() > 0) {
 237                         mandatory = true;
 238                 }
 239
 240                 boolean multiple = false;
 241                 if (particle.getMaxOccurs() > 1 || particle.getMaxOccursUnbounded()) {
 242                         multiple = true;
 243                 }
 244                 if (!multiple && multipleFromAbove)
 245                         multiple = true;
 246
 247                 if (term.getType() == XSConstants.ELEMENT_DECLARATION) {
 248                         XSElementDeclaration eDec = (XSElementDeclaration) term;
 249
 250                         collectElementDeclaration(prefix, eDec);
 251                         // If this particle is a wildcard (an <xs:any> )then it
 252                         // is converted into a node def.
 253                 } else if (term.getType() == XSConstants.WILDCARD) {
 254                         // TODO can be anything
 255
 256                         // If this particle is a model group (one of
 257                         // <xs:sequence>, <xs:choice> or <xs:all>) then
 258                         // it subparticles must be processed.
 259                 } else if (term.getType() == XSConstants.MODEL_GROUP) {
 260                         XSModelGroup mg = (XSModelGroup) term;
 261
 262                         if (mg.getCompositor() == XSModelGroup.COMPOSITOR_SEQUENCE) {
 263                                 orderable = true;
 264                         }
 265                         XSObjectList list = mg.getParticles();
 266                         for (int i = 0; i < list.getLength(); i++) {
 267                                 XSParticle pp = (XSParticle) list.item(i);
 268                                 collectParticle(prefix + "  ", pp, multiple);
 269                         }
 270                 }
 271         }
 272
 273         private void collectElementDeclaration(String prefix, XSElementDeclaration eDec) {
 274                 QName name = new QName(eDec.getNamespace(), eDec.getName());
 275                 XSTypeDefinition tDef = eDec.getTypeDefinition();
 276
 277                 XSComplexTypeDefinition ctDef = null;
 278                 Map<QName, CrAttributeType> attributes = new HashMap<>();
 279                 if (tDef.getTypeCategory() == XSTypeDefinition.SIMPLE_TYPE) {
 280                         XSSimpleTypeDefinition stDef = (XSSimpleTypeDefinition) tDef;
 281 //                      System.err.println(prefix + "Simple element " + name);
 282                 } else if (tDef.getTypeCategory() == XSTypeDefinition.COMPLEX_TYPE) {
 283                         ctDef = (XSComplexTypeDefinition) tDef;
 284                         if (ctDef.getContentType() == XSComplexTypeDefinition.CONTENTTYPE_SIMPLE
 285                                         && ctDef.getAttributeUses().getLength() == 0 && ctDef.getAttributeWildcard() == null) {
 286                                 XSSimpleTypeDefinition stDef = ctDef.getSimpleType();
 287 //                              System.err.println(prefix + "Simplified element " + name);
 288                         } else {
 289                                 if (!types.containsKey(name)) {
 290 //                                      System.out.println(prefix + "Element " + name);
 291
 292                                         XSObjectList list = ctDef.getAttributeUses();
 293                                         for (int i = 0; i < list.getLength(); i++) {
 294                                                 XSAttributeUse au = (XSAttributeUse) list.item(i);
 295                                                 XSAttributeDeclaration ad = au.getAttrDeclaration();
 296                                                 QName attrName = new QName(ad.getNamespace(), ad.getName());
 297                                                 // Get the simple type def for this attribute
 298                                                 XSSimpleTypeDefinition std = ad.getTypeDefinition();
 299                                                 attributes.put(attrName, xsToCrType(std.getBuiltInKind()));
 300 //                                              System.out.println(prefix + " - " + attrName + " = " + attributes.get(attrName));
 301                                         }
 302                                         // REGISTER
 303                                         types.put(name, attributes);
 304                                         if (ctDef != null)
 305                                                 collectComplexType(prefix + " ", name, ctDef);
 306                                 }
 307                         }
 308                 }
 309
 310         }
 311
 312         private CrAttributeType xsToCrType(short kind) {
 313                 CrAttributeType propertyType;
 314                 switch (kind) {
 315                 case XSConstants.ANYSIMPLETYPE_DT:
 316                 case XSConstants.STRING_DT:
 317                 case XSConstants.ID_DT:
 318                 case XSConstants.ENTITY_DT:
 319                 case XSConstants.NOTATION_DT:
 320                 case XSConstants.NORMALIZEDSTRING_DT:
 321                 case XSConstants.TOKEN_DT:
 322                 case XSConstants.LANGUAGE_DT:
 323                 case XSConstants.NMTOKEN_DT:
 324                         propertyType = CrAttributeType.STRING;
 325                         break;
 326                 case XSConstants.BOOLEAN_DT:
 327                         propertyType = CrAttributeType.BOOLEAN;
 328                         break;
 329                 case XSConstants.DECIMAL_DT:
 330                 case XSConstants.FLOAT_DT:
 331                 case XSConstants.DOUBLE_DT:
 332                         propertyType = CrAttributeType.DOUBLE;
 333                         break;
 334                 case XSConstants.DURATION_DT:
 335                 case XSConstants.DATETIME_DT:
 336                 case XSConstants.TIME_DT:
 337                 case XSConstants.DATE_DT:
 338                 case XSConstants.GYEARMONTH_DT:
 339                 case XSConstants.GYEAR_DT:
 340                 case XSConstants.GMONTHDAY_DT:
 341                 case XSConstants.GDAY_DT:
 342                 case XSConstants.GMONTH_DT:
 343                         propertyType = CrAttributeType.DATE_TIME;
 344                         break;
 345                 case XSConstants.HEXBINARY_DT:
 346                 case XSConstants.BASE64BINARY_DT:
 347                 case XSConstants.ANYURI_DT:
 348                         propertyType = CrAttributeType.ANY_URI;
 349                         break;
 350                 case XSConstants.QNAME_DT:
 351                 case XSConstants.NAME_DT:
 352                 case XSConstants.NCNAME_DT:
 353                         // TODO support QName?
 354                         propertyType = CrAttributeType.STRING;
 355                         break;
 356                 case XSConstants.IDREF_DT:
 357                         // TODO support references?
 358                         propertyType = CrAttributeType.STRING;
 359                         break;
 360                 case XSConstants.INTEGER_DT:
 361                 case XSConstants.NONPOSITIVEINTEGER_DT:
 362                 case XSConstants.NEGATIVEINTEGER_DT:
 363                 case XSConstants.LONG_DT:
 364                 case XSConstants.INT_DT:
 365                 case XSConstants.SHORT_DT:
 366                 case XSConstants.BYTE_DT:
 367                 case XSConstants.NONNEGATIVEINTEGER_DT:
 368                 case XSConstants.UNSIGNEDLONG_DT:
 369                 case XSConstants.UNSIGNEDINT_DT:
 370                 case XSConstants.UNSIGNEDSHORT_DT:
 371                 case XSConstants.UNSIGNEDBYTE_DT:
 372                 case XSConstants.POSITIVEINTEGER_DT:
 373                         propertyType = CrAttributeType.LONG;
 374                         break;
 375                 case XSConstants.LISTOFUNION_DT:
 376                 case XSConstants.LIST_DT:
 377                 case XSConstants.UNAVAILABLE_DT:
 378                         propertyType = CrAttributeType.STRING;
 379                         break;
 380                 default:
 381                         propertyType = CrAttributeType.STRING;
 382                         break;
 383                 }
 384                 return propertyType;
 385         }
 386
 387         public DocumentBuilder newDocumentBuilder() {
 388                 try {
 389                         DocumentBuilder dBuilder = documentBuilderFactory.newDocumentBuilder();
 390                         dBuilder.setErrorHandler(new ErrorHandler() {
 391
 392                                 @Override
 393                                 public void warning(SAXParseException exception) throws SAXException {
 394                                         log.warn(exception);
 395                                 }
 396
 397                                 @Override
 398                                 public void fatalError(SAXParseException exception) throws SAXException {
 399                                         log.error(exception);
 400                                 }
 401
 402                                 @Override
 403                                 public void error(SAXParseException exception) throws SAXException {
 404                                         log.error(exception);
 405                                 }
 406                         });
 407                         return dBuilder;
 408                 } catch (ParserConfigurationException e) {
 409                         throw new IllegalStateException("Cannot create document builder", e);
 410                 }
 411         }
 412
 413         public void printTypes() {
 414                 try {
 415
 416                         // Convert top level complex type definitions to node types
 417                         log.debug("\n## TYPES");
 418                         XSNamedMap map = xsModel.getComponents(XSConstants.TYPE_DEFINITION);
 419                         for (int i = 0; i < map.getLength(); i++) {
 420                                 XSTypeDefinition tDef = (XSTypeDefinition) map.item(i);
 421                                 log.debug(tDef);
 422                         }
 423                         // Convert local (anonymous) complex type defs found in top level
 424                         // element declarations
 425                         log.debug("\n## ELEMENTS");
 426                         map = xsModel.getComponents(XSConstants.ELEMENT_DECLARATION);
 427                         for (int i = 0; i < map.getLength(); i++) {
 428                                 XSElementDeclaration eDec = (XSElementDeclaration) map.item(i);
 429                                 XSTypeDefinition tDef = eDec.getTypeDefinition();
 430                                 log.debug(eDec + ", " + tDef);
 431                         }
 432                         log.debug("\n## ATTRIBUTES");
 433                         map = xsModel.getComponents(XSConstants.ATTRIBUTE_DECLARATION);
 434                         for (int i = 0; i < map.getLength(); i++) {
 435                                 XSAttributeDeclaration eDec = (XSAttributeDeclaration) map.item(i);
 436                                 XSTypeDefinition tDef = eDec.getTypeDefinition();
 437                                 log.debug(eDec.getNamespace() + ":" + eDec.getName() + ", " + tDef);
 438                         }
 439                 } catch (ClassCastException | XSException e) {
 440                         throw new RuntimeException(e);
 441                 }
 442
 443         }
 444
 445         public void validate(Source source) throws IOException {
 446                 if (!validating)
 447                         return;
 448                 Validator validator;
 449                 synchronized (this) {
 450                         validator = schema.newValidator();
 451                 }
 452                 try {
 453                         validator.validate(source);
 454                 } catch (SAXException e) {
 455                         throw new IllegalArgumentException("Provided source is not valid", e);
 456                 }
 457         }
 458
 459 //      public Map<String, String> getPrefixes() {
 460 //              return prefixes;
 461 //      }
 462
 463         public List<Source> getSources() {
 464                 return sources;
 465         }
 466
 467         public Schema getSchema() {
 468                 return schema;
 469         }
 470
 471 }