public static String findUrl(PsiFile file, int offset, String uri) {
    final PsiElement currentElement = file.findElementAt(offset);
    final XmlAttribute attribute = PsiTreeUtil.getParentOfType(currentElement, XmlAttribute.class);

    if (attribute != null) {
      final XmlTag tag = PsiTreeUtil.getParentOfType(currentElement, XmlTag.class);

      if (tag != null) {
        final String prefix = tag.getPrefixByNamespace(XmlUtil.XML_SCHEMA_INSTANCE_URI);
        if (prefix != null) {
          final String attrValue =
              tag.getAttributeValue(XmlUtil.SCHEMA_LOCATION_ATT, XmlUtil.XML_SCHEMA_INSTANCE_URI);
          if (attrValue != null) {
            final StringTokenizer tokenizer = new StringTokenizer(attrValue);

            while (tokenizer.hasMoreElements()) {
              if (uri.equals(tokenizer.nextToken())) {
                if (!tokenizer.hasMoreElements()) return uri;
                final String url = tokenizer.nextToken();

                return url.startsWith(HTTP_PROTOCOL) ? url : uri;
              }

              if (!tokenizer.hasMoreElements()) return uri;
              tokenizer.nextToken(); // skip file location
            }
          }
        }
      }
    }
    return uri;
  }
예제 #2
0
  @NotNull
  private Map<String, CachedValue<XmlNSDescriptor>> computeNsDescriptorMap() {
    Map<String, CachedValue<XmlNSDescriptor>> map = null;
    // XSD aware attributes processing

    final String noNamespaceDeclaration =
        getAttributeValue("noNamespaceSchemaLocation", XmlUtil.XML_SCHEMA_INSTANCE_URI);
    final String schemaLocationDeclaration =
        getAttributeValue("schemaLocation", XmlUtil.XML_SCHEMA_INSTANCE_URI);

    if (noNamespaceDeclaration != null) {
      map = initializeSchema(XmlUtil.EMPTY_URI, null, noNamespaceDeclaration, map);
    }
    if (schemaLocationDeclaration != null) {
      final StringTokenizer tokenizer = new StringTokenizer(schemaLocationDeclaration);
      while (tokenizer.hasMoreTokens()) {
        final String uri = tokenizer.nextToken();
        if (tokenizer.hasMoreTokens()) {
          map = initializeSchema(uri, null, tokenizer.nextToken(), map);
        }
      }
    }
    // namespace attributes processing (XSD declaration via ExternalResourceManager)

    if (hasNamespaceDeclarations()) {
      for (final XmlAttribute attribute : getAttributes()) {
        if (attribute.isNamespaceDeclaration()) {
          String ns = attribute.getValue();
          if (ns == null) ns = XmlUtil.EMPTY_URI;
          ns = getRealNs(ns);

          if (map == null || !map.containsKey(ns)) {
            map = initializeSchema(ns, getNSVersion(ns, this), getNsLocation(ns), map);
          }
        }
      }
    }
    return map == null ? Collections.<String, CachedValue<XmlNSDescriptor>>emptyMap() : map;
  }