Examples of org.geotools.xml.schema.Schema

org.geotools.xml.schema.Schema

This Interface is intended to represent the public portion of an XML Schema. By public portion, I mean the portion of the Schema which can be included in an instance document, or imported into another Schema.

The distinction between the public portion of a XML Schema and the entire XML Schema is or particular important when comparing, or printing two XML Schemas. This interface does is intended to provide enough information to re-create the original Schema (note the lack or annotations as an example). This interface is however intended to provide functional semantic equivalence. By this is mean that two XML Schemas represented using this interface should have the same SET of declarations. There is no guarantee that the Schema represented matches the original document with respect to orderwithin the sets, except where order is explicitly defined (Sequence, Choice).

This method must be inplemented within extensions: public static Schema getInstance();. It will be used by the Schema factory to load the required extensions into memory.
@author dzwiers www.refractions.net @source $URL$

        throws SAXException {
        logger.finest("Target == '" + targ + "'");


        try {
            URI tns = new URI(targ);
            Schema s = SchemaFactory.getInstance(tns);


            if (s == null) {
                prefixURIs.put(prefix, tns); 
                return;
            }


            if ((prefix == null) || "".equalsIgnoreCase(prefix)) {
                defaultNS = s.getTargetNamespace();
            }


            targSchemas.put(s.getTargetNamespace(), s);
            prefixURIs.put(prefix, tns); 
        } catch (URISyntaxException e) {
            logger.warning(e.toString());
            throw new SAXException(e);
        }

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        }


        logger.finest("Trying to create an element handler for " + localName
            + " :: " + namespaceURI);


        Schema s = (Schema) targSchemas.get(namespaceURI);


        if (s == null) {
            logger.finest("Could not find Schema " + namespaceURI);


            return null;
        }


        logger.finest("Found Schema " + s.getTargetNamespace());


        Element[] eth = s.getElements();


        if (eth == null) {
            return null;
        }

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                // type in other NS
                if (!element.getType().getNamespace().equals(schema
                            .getTargetNamespace())) {
                    found = true;
                    XSISAXHandler.setLogLevel(logger.getLevel());
                    Schema s = SchemaFactory.getInstance(element.getNamespace());


                    if ((element.getName() != null)
                            && (element.getName() != "")) {
                        ai.addAttribute("", "name", "", "QName",
                            element.getName());
                    }


                    ai.addAttribute("", "type", "", "QName",
                        s.getPrefix() + ":" + element.getType().getName());
                }


                // search schema for type, then type can be a qName
                Type[] types = schema.getComplexTypes();


                for (int i = 0; (i < types.length) && !found; i++)


                    // TODO use equals here
                    if (element.getType().getName().equals(types[i].getName())) {
                        found = true;


                        if ((element.getName() != null)
                                && (element.getName() != "")) {
                            ai.addAttribute("", "name", "", "QName",
                                element.getName());
                        }


                        ai.addAttribute("", "type", "", "QName",
                            element.getType().getName());
                    }


                types = schema.getSimpleTypes();


                for (int i = 0; (i < types.length) && !found; i++)


                    // TODO use equals here
                    if (element.getType().getName().equals(types[i].getName())) {
                        found = true;


                        if ((element.getName() != null)
                                && (element.getName() != "")) {
                            ai.addAttribute("", "name", "", "QName",
                                element.getName());
                        }


                        ai.addAttribute("", "type", "", "QName",
                            element.getType().getName());
                    }


                if (!found) {
                    //   we are nested  ... log this
                    nested = true;


                    if ((element.getName() != null)
                            && (element.getName() != "")) {
                        ai.addAttribute("", "name", "", "QName",
                            element.getName());
                    }
                }
            }
        } else {
            // use a ref
            Schema s = SchemaFactory.getInstance(element.getNamespace());
            ai.addAttribute("", "ref", "", "QName",
                s.getPrefix() + ":" + element.getName());
        }


        if (element.isNillable()) {
            ai.addAttribute("", "nillable", "", "boolean", "true");
        }


        if ((element.getDefault() != null) && (element.getDefault() != "")) {
            ai.addAttribute("", "default", "", "String", element.getDefault());
        } else {
            if ((element.getFixed() != null) && (element.getFixed() != "")) {
                ai.addAttribute("", "fixed", "", "String", element.getFixed());
            }
        }


        if (element.getSubstitutionGroup() != null) {
            String s = "";


            if (!element.getSubstitutionGroup().getNamespace().equals(schema
                        .getTargetNamespace())) {
                Schema sss = SchemaFactory.getInstance(element.getSubstitutionGroup()
                                                              .getNamespace());
                s = sss.getPrefix() + ":";
            }


            s += element.getSubstitutionGroup().getName();
            ai.addAttribute("", "substitutionGroup", "", "QName", s);
        }

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                // type in other NS
                if (!attribute.getSimpleType().getNamespace().equals(schema
                            .getTargetNamespace())) {
                    found = true;
                    XSISAXHandler.setLogLevel(logger.getLevel());
                    Schema s = SchemaFactory.getInstance(attribute.getNamespace());


                    if ((attribute.getName() != null)
                            && (attribute.getName() != "")) {
                        ai.addAttribute("", "name", "", "QName",
                            attribute.getName());
                    }


                    ai.addAttribute("", "type", "", "QName",
                        s.getPrefix() + ":"
                        + attribute.getSimpleType().getName());
                }


                // search schema for type, then type can be a qName
                SimpleType[] types = schema.getSimpleTypes();


                for (int i = 0; (i < types.length) && !found; i++)


                    // TODO use equals here
                    if (attribute.getSimpleType().getName().equals(types[i]
                                .getName())) {
                        found = true;


                        if ((attribute.getName() != null)
                                && (attribute.getName() != "")) {
                            ai.addAttribute("", "name", "", "QName",
                                attribute.getName());
                        }


                        ai.addAttribute("", "type", "", "QName",
                            attribute.getSimpleType().getName());
                    }


                if (!found) {
                    //   we are nested  ... log this
                    nested = true;


                    if ((attribute.getName() != null)
                            && (attribute.getName() != "")) {
                        ai.addAttribute("", "name", "", "QName",
                            attribute.getName());
                    }
                }
            }
        } else {
            // use a ref
            Schema s = SchemaFactory.getInstance(attribute.getNamespace());
            ai.addAttribute("", "ref", "", "QName",
                s.getPrefix() + ":" + attribute.getName());
        }


        if (attribute.getUse() != Attribute.OPTIONAL) {
            ai.addAttribute("", "use", "", "NMTOKEN",
                AttributeHandler.writeUse(attribute.getUse()));

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                nested = true;
            }
        } else {
            // use a ref
          XSISAXHandler.setLogLevel(logger.getLevel());
            Schema s = SchemaFactory.getInstance(group.getNamespace());
            ai.addAttribute("", "ref", "", "QName",
                s.getPrefix() + ":" + group.getName());
        }


        if (group.getMaxOccurs() != 1) {
            ai.addAttribute("", "maxOccurs", "", "Union",
                (group.getMaxOccurs() == ElementGrouping.UNBOUNDED) ? "unbounded"

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                nested = true;
            }
        } else {
            // use a ref
          XSISAXHandler.setLogLevel(logger.getLevel());
            Schema s = SchemaFactory.getInstance(attributeGroup.getNamespace());
            ai.addAttribute("", "ref", "", "QName",
                s.getPrefix() + ":" + attributeGroup.getName());
        }


        ph.startElement(XSISimpleTypes.NAMESPACE, "group", ai);


        if (nested) {

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                    }
                }
            } else {
                ai = new AttributesImpl();
                XSISAXHandler.setLogLevel(logger.getLevel());
                Schema s = SchemaFactory.getInstance(st.getNamespace());
                ai.addAttribute("", "base", "", "QName",
                    s.getPrefix() + ":" + st.getName());
            }


            ph.startElement(XSISimpleTypes.NAMESPACE, "restriction", ai);


            if (ai == null) {
                writeSimpleType(st, schema, ph, hints);
            }


            Facet[] facets = simpleType.getFacets();


            if (facets != null) {
                for (int i = 0; i < facets.length; i++)
                    writeFacet(facets[i], ph);
            }


            ph.endElement(XSISimpleTypes.NAMESPACE, "restriction");


            break;


        case SimpleType.LIST:


            // determine whether to print or reference the child st
            st = simpleType.getParents()[0];
            ai = null;


            if (schema.getTargetNamespace().equals(st.getNamespace())) {
                if ((st.getName() != null) && (st.getName() != "")) {
                    SimpleType[] sts = schema.getSimpleTypes();


                    if (sts != null) {
                        for (int i = 0; i < sts.length; i++)
                            if (st.getName().equals(sts[i].getName())) {
                                ai = new AttributesImpl();
                                ai.addAttribute("", "itemType", "", "QName",
                                    st.getName());
                            }
                    }
                }
            } else {
                ai = new AttributesImpl();


                Schema s = SchemaFactory.getInstance(st.getNamespace());
                ai.addAttribute("", "itemType", "", "QName",
                    s.getPrefix() + ":" + st.getName());
            }


            ph.startElement(XSISimpleTypes.NAMESPACE, "list", ai);


            if (ai == null) {
                writeSimpleType(st, schema, ph, hints);
            }


            ph.endElement(XSISimpleTypes.NAMESPACE, "list");


            break;


        case SimpleType.UNION:


            // determine whether to print or reference the child st
            SimpleType[] sts = simpleType.getParents();
            String memberTypes = null;
            List childTs = new LinkedList();


            if (sts != null) {
                for (int j = 0; j < sts.length; j++) {
                    st = sts[j];


                    if (schema.getTargetNamespace().equals(st.getNamespace())) {
                        boolean found = false;


                        if ((st.getName() != null) && (st.getName() != "")) {
                            SimpleType[] sts2 = schema.getSimpleTypes();


                            if (sts2 != null) {
                                for (int i = 0; i < sts2.length; i++)
                                    if (st.getName().equals(sts2[i].getName())) {
                                        found = true;


                                        if (memberTypes == null) {
                                            memberTypes = st.getName();
                                        } else {
                                            memberTypes += (" " + st.getName());
                                        }
                                    }
                            }
                        }


                        if (!found) {
                            childTs.add(st);
                        }
                    } else {
                        ai = new AttributesImpl();


                        Schema s = SchemaFactory.getInstance(st.getNamespace());


                        if (memberTypes == null) {
                            memberTypes = s.getPrefix() + ":" + st.getName();
                        } else {
                            memberTypes += (" " + s.getPrefix() + ":"
                            + st.getName());
                        }
                    }
                }
            }

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        TestData.copy(this,"xml/mails.xsd");


        Object doc = DocumentFactory.getInstance(f.toURI(),null,Level.WARNING);
        assertNotNull("Document missing", doc);


        Schema s = SchemaFactory.getInstance(new URI("http://mails/refractions/net"));
                
        path = "mails_out.xml";
        f = TestData.temp(this, path);
        if(f.exists())
            f.delete();

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    public void testGMLXLinks() throws URISyntaxException {
        runit(new URI("http://www.w3.org/1999/xlink"), "xml/gml/xlinks.xsd");
    }


    private void runit(URI targetNS, String path) {
        Schema s = null;


        try {
            File f = TestData.copy(this,path);
            s = SchemaFactory.getInstance(targetNS, f.toURI(),
                    Level.INFO);
        } catch (Exception e) {
            e.printStackTrace();
            fail(e.toString());
        }


        assertNotNull("Schema missing", s);
        System.out.println(s);


        Schema s2 = null;
        s2 = SchemaFactory.getInstance(targetNS);
        assertTrue("Should be the same", s == s2);
    }

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