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Diffstat (limited to 'branches/sca-java-integration/sca/extensions/axis2/tools/wsdl2java/src/main/java/org/apache/tuscany/tools/java2wsdl/generate/SchemaBuilder.java')
| -rw-r--r-- | branches/sca-java-integration/sca/extensions/axis2/tools/wsdl2java/src/main/java/org/apache/tuscany/tools/java2wsdl/generate/SchemaBuilder.java | 524 |
1 files changed, 524 insertions, 0 deletions
diff --git a/branches/sca-java-integration/sca/extensions/axis2/tools/wsdl2java/src/main/java/org/apache/tuscany/tools/java2wsdl/generate/SchemaBuilder.java b/branches/sca-java-integration/sca/extensions/axis2/tools/wsdl2java/src/main/java/org/apache/tuscany/tools/java2wsdl/generate/SchemaBuilder.java new file mode 100644 index 0000000000..67609445ae --- /dev/null +++ b/branches/sca-java-integration/sca/extensions/axis2/tools/wsdl2java/src/main/java/org/apache/tuscany/tools/java2wsdl/generate/SchemaBuilder.java @@ -0,0 +1,524 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ +package org.apache.tuscany.tools.java2wsdl.generate; + +import java.io.StringReader; +import java.lang.reflect.Constructor; +import java.util.Hashtable; +import java.util.Iterator; +import java.util.List; +import java.util.Locale; +import java.util.Map; +import java.util.Vector; + +import javax.xml.namespace.QName; + +import org.apache.tuscany.sdo.util.SDOUtil; +import org.apache.ws.commons.schema.XmlSchema; +import org.apache.ws.commons.schema.XmlSchemaCollection; +import org.apache.ws.commons.schema.XmlSchemaComplexType; +import org.apache.ws.commons.schema.XmlSchemaElement; +import org.apache.ws.commons.schema.XmlSchemaForm; +import org.apache.ws.commons.schema.XmlSchemaGroupBase; +import org.apache.ws.commons.schema.XmlSchemaImport; +import org.apache.ws.commons.schema.XmlSchemaInclude; +import org.apache.ws.commons.schema.XmlSchemaSequence; +import org.apache.ws.commons.schema.XmlSchemaType; +import org.apache.ws.commons.schema.utils.NamespaceMap; +import org.apache.ws.java2wsdl.Java2WSDLUtils; +import org.codehaus.jam.JClass; +import org.codehaus.jam.JProperty; + +import commonj.sdo.DataObject; +import commonj.sdo.Type; +import commonj.sdo.helper.XSDHelper; + +public class SchemaBuilder implements TuscanyJava2WSDLConstants { + public static final String NAME_SPACE_PREFIX = "stn_"; + + private static int prefixCount = 1; + + public static final String MIXED = "mixed"; + + public static final String GROUP = "group"; + + protected String attrFormDefault = null; + + protected String elementFormDefault = null; + + protected XmlSchemaCollection xmlSchemaCollection = new XmlSchemaCollection(); + + private Hashtable schemaMap = new Hashtable(); + + protected Hashtable targetNamespacePrefixMap = new Hashtable(); + + protected TuscanyTypeTable typeTable = new TuscanyTypeTable(); + + protected Map schemaLocationMap = null; + + private ClassLoader classLoader; + + protected SchemaBuilder(XmlSchemaCollection schemaCollection, + Hashtable schemaMap, + Hashtable nsPrefixMap, + TuscanyTypeTable typeTable, + String attrFormDef, + String eleFormDef, + Map schemaLocMap, + ClassLoader classLoader) { + this.schemaMap = schemaMap; + this.xmlSchemaCollection = schemaCollection; + this.targetNamespacePrefixMap = nsPrefixMap; + this.typeTable = typeTable; + this.schemaLocationMap = schemaLocMap; + this.classLoader = classLoader; + this.attrFormDefault = attrFormDef; + this.elementFormDefault = eleFormDef; + } + + private boolean isSDO(JClass javaType) throws Exception { + Class sdoClass = Class.forName(javaType.getQualifiedName(), + true, + classLoader); + return DataObject.class.isAssignableFrom(sdoClass); + } + + private void buildComplexTypeContents_JavaType(JClass javaType, + XmlSchemaComplexType complexType, + XmlSchema xmlSchema) throws Exception { + JProperty[] properties = javaType.getDeclaredProperties(); + + for (int i = 0; i < properties.length; i++) { + JProperty property = properties[i]; + String propertyName = property.getType().getQualifiedName(); + boolean isArryType = property.getType().isArrayType(); + if (isArryType) { + propertyName = property.getType().getArrayComponentType().getQualifiedName(); + } + + if (typeTable.isSimpleType(propertyName)) { + XmlSchemaElement elt1 = new XmlSchemaElement(); + elt1.setName(getCorrectName(property.getSimpleName())); + elt1.setSchemaTypeName(typeTable.getSimpleSchemaTypeName(propertyName)); + ((XmlSchemaGroupBase) complexType.getParticle()).getItems().add(elt1); + if (isArryType) { + elt1.setMaxOccurs(Long.MAX_VALUE); + elt1.setMinOccurs(0); + } + } else { + QName schemaTypeName = null; + if (isArryType) { + schemaTypeName = generateSchema(property.getType().getArrayComponentType()); + } else { + schemaTypeName = generateSchema(property.getType()); + } + + XmlSchemaElement elt1 = new XmlSchemaElement(); + elt1.setName(getCorrectName(property.getSimpleName())); + elt1.setSchemaTypeName(schemaTypeName); + ((XmlSchemaGroupBase) complexType.getParticle()).getItems().add(elt1); + + if (isArryType) { + elt1.setMaxOccurs(Long.MAX_VALUE); + elt1.setMinOccurs(0); + } + + addImports(xmlSchema, + schemaTypeName); + } + } + } + + protected QName buildSchema_JavaType(JClass javaType) throws Exception { + QName schemaTypeName = typeTable.getComplexSchemaTypeName(javaType, this.classLoader); + if (schemaTypeName == null) { + String simpleName = javaType.getSimpleName(); + + String packageName = javaType.getContainingPackage().getQualifiedName(); + + String targetNameSpace = + Java2WSDLUtils.schemaNamespaceFromClassName(javaType.getQualifiedName(), this.classLoader) + .toString(); + + XmlSchema xmlSchema = getXmlSchema(targetNameSpace); + String targetNamespacePrefix = (String) targetNamespacePrefixMap.get(targetNameSpace); + + schemaTypeName = new QName(targetNameSpace, simpleName, targetNamespacePrefix); + XmlSchemaComplexType complexType = new XmlSchemaComplexType(xmlSchema); + complexType.setName(simpleName); + + XmlSchemaSequence sequence = new XmlSchemaSequence(); + complexType.setParticle(sequence); + + createGlobalElement(xmlSchema, + complexType, + schemaTypeName); + xmlSchema.getItems().add(complexType); + xmlSchema.getSchemaTypes().add(schemaTypeName, + complexType); + + // adding this type to the table + // typeTable.addComplexScheam(name, complexType.getQName()); + typeTable.addComplexSchemaType(targetNameSpace, + simpleName, + schemaTypeName); + buildComplexTypeContents_JavaType(javaType, + complexType, + xmlSchema); + } + return schemaTypeName; + } + + protected QName buildSchema_SDO(Type dataType) // throws Exception + { + QName schemaTypeName = typeTable.getComplexSchemaTypeName(dataType.getURI(), + dataType.getName()); + + if (schemaTypeName == null) { + // invoke XSDHelper to generate schema for this sdo type + XSDHelper xsdHelper = SDOUtil.createXSDHelper(SDOUtil.createTypeHelper()); + // it is better to check if XSDHelper can generate the schema + if (xsdHelper.isXSD(dataType)) { + // if schemalocations for xsd has been specified, include them + includeExtXSD(dataType); + } else { + List typeList = new Vector(); + typeList.add(dataType); + + // the xsdhelper returns a string that contains the schemas for this type + String schemaDefns = xsdHelper.generate(typeList, + schemaLocationMap); + + // extract the schema elements and store them in the schema map + extractSchemas(schemaDefns); + } + // since the XSDHelper will not return the type name, create it and store it in typetable + schemaTypeName = new QName(dataType.getURI(), dataType.getName(), generatePrefix()); + typeTable.addComplexSchemaType(dataType.getURI(), + dataType.getName(), + schemaTypeName); + + } + return schemaTypeName; + } + + public QName generateSchema(JClass javaType) throws Exception { + if (isSDO(javaType)) { + Type dataType = createDataObject(javaType).getType(); + return buildSchema_SDO(dataType); + } else { + return buildSchema_JavaType(javaType); + } + } + + private XmlSchema getXmlSchema(String targetNamespace) { + XmlSchema xmlSchema; + + if ((xmlSchema = (XmlSchema) schemaMap.get(targetNamespace)) == null) { + String targetNamespacePrefix = generatePrefix(); + + xmlSchema = new XmlSchema(targetNamespace, xmlSchemaCollection); + xmlSchema.setAttributeFormDefault(getAttrFormDefaultSetting()); + xmlSchema.setElementFormDefault(getElementFormDefaultSetting()); + + targetNamespacePrefixMap.put(targetNamespace, + targetNamespacePrefix); + schemaMap.put(targetNamespace, + xmlSchema); + + NamespaceMap prefixmap = new NamespaceMap(); + prefixmap.put(TuscanyTypeTable.XS_URI_PREFIX, + TuscanyTypeTable.XML_SCHEMA_URI); + prefixmap.put(targetNamespacePrefix, + targetNamespace); + xmlSchema.setNamespaceContext(prefixmap); + } + return xmlSchema; + } + + /** + * JAM convert first name of an attribute into UpperCase as an example if there is a instance variable called foo in a bean , then Jam give that + * as Foo so this method is to correct that error + * + * @param wrongName + * @return the right name, using english as the locale for case conversion + */ + public static String getCorrectName(String wrongName) { + if (wrongName.length() > 1) { + return wrongName.substring(0, + 1).toLowerCase(Locale.ENGLISH) + + wrongName.substring(1, + wrongName.length()); + } else { + return wrongName.substring(0, + 1).toLowerCase(Locale.ENGLISH); + } + } + + private String addImports(XmlSchema xmlSchema, QName schemaTypeName) { + String prefix = null; + String[] prefixes = xmlSchema.getNamespaceContext().getDeclaredPrefixes(); + for (int count = 0; count < prefixes.length; ++count) { + if (schemaTypeName.getNamespaceURI(). + equals(xmlSchema.getNamespaceContext().getNamespaceURI(prefixes[count])) ) { + return prefixes[count]; + } + } + + // the following lines are executed only if a prefix was not found which implies that the + // schemaTypeName was not imported earlier and also it does not belong to the targetnamespace + String schemaLocation = null; + XmlSchemaImport importElement = new XmlSchemaImport(); + importElement.setNamespace(schemaTypeName.getNamespaceURI()); + xmlSchema.getItems().add(importElement); + prefix = generatePrefix(); + //it is safe to cast like this since it was this class that instantiated the + //NamespaceContext and assigned it to an instance of a NamespaceMap (see method getXmlSchema) + ((NamespaceMap)xmlSchema.getNamespaceContext()).put(prefix, + schemaTypeName.getNamespaceURI()); + + return prefix; + } + + private String formGlobalElementName(String typeName) { + String firstChar = typeName.substring(0, + 1); + return typeName.replaceFirst(firstChar, + firstChar.toLowerCase()); + } + + private void createGlobalElement(XmlSchema xmlSchema, + XmlSchemaComplexType complexType, + QName elementName) { + XmlSchemaElement globalElement = new XmlSchemaElement(); + globalElement.setSchemaTypeName(complexType.getQName()); + globalElement.setName(formGlobalElementName(complexType.getName())); + globalElement.setQName(elementName); + + xmlSchema.getItems().add(globalElement); + xmlSchema.getElements().add(elementName, + globalElement); + } + + private DataObject createDataObject(JClass sdoClass) throws Exception { + Class sdoType = Class.forName(sdoClass.getQualifiedName(), + true, + classLoader); + + Constructor constructor = sdoType.getDeclaredConstructor(new Class[0]); + constructor.setAccessible(true); + Object instance = constructor.newInstance(new Object[0]); + return (DataObject) instance; + } + + private String generatePrefix() { + return NAME_SPACE_PREFIX + prefixCount++; + } + + private void includeExtXSD(Type dataType) { + // now we know there is a type for which the xsd must come from outside + // create a schema for the namespace of this type and add an include in it for + // the xsd that is defined externally + XmlSchema xmlSchema = getXmlSchema(dataType.getURI()); + + // ideally there could be more than one external schema defintions for a namespace + // and hence schemalocations will be a list of locations + // List schemaLocations = (List)schemaLocationMap.get(dataType.getURI()); + + // since as per the specs the input to XSDHelper is a map of <String, String> allowing + // only one schemalocation for a namespace. So for now this single location will be + // picked up and put into a list + List schemaLocations = new Vector(); + + if (schemaLocationMap.get(dataType.getURI()) != null) { + schemaLocations.add(schemaLocationMap.get(dataType.getURI())); + } + + if (schemaLocations.size() <= 0) { + schemaLocations.add(DEFAULT_SCHEMA_LOCATION); + } + + Iterator includesIterator = xmlSchema.getIncludes().getIterator(); + Iterator schemaLocIterator = schemaLocations.iterator(); + String aSchemaLocation = null; + boolean includeExists = false; + // include all external schema locations + while (schemaLocIterator.hasNext()) { + aSchemaLocation = (String) schemaLocIterator.next(); + while (includesIterator.hasNext()) { + if (!includeExists + && aSchemaLocation.equals(((XmlSchemaInclude) includesIterator.next()).getSchemaLocation())) { + includeExists = true; + } + } + + if (!includeExists) { + XmlSchemaInclude includeElement = new XmlSchemaInclude(); + includeElement.setSchemaLocation(aSchemaLocation); + xmlSchema.getIncludes().add(includeElement); + xmlSchema.getItems().add(includeElement); + } + } + + } + + private void extractSchemas(String schemaDefns) { + // load each schema element and add it to the schema map + + String token = getToken(schemaDefns); + int curIndex = schemaDefns.indexOf(token); + int nextIndex = schemaDefns.indexOf(token, + curIndex + token.length()); + + while (curIndex != -1) { + StringReader sr = null; + if (nextIndex != -1) + sr = new StringReader(schemaDefns.substring(curIndex, + nextIndex)); + else + sr = new StringReader(schemaDefns.substring(curIndex)); + + XmlSchemaCollection collection = new XmlSchemaCollection(); + XmlSchema aSchema = collection.read(sr, + null); + addSchemaToMap(aSchema); + + curIndex = nextIndex; + nextIndex = schemaDefns.indexOf(token, + curIndex + token.length()); + } + } + + private void addSchemaToMap(XmlSchema extractedSchema) { + // check if a Schema object already exists in schema map for targetNamespace of this schema element + // if it does then copy the contents of this schema element to the existing one, ensuring that + // duplicate elements are not created. i.e. before adding some child element like 'include' or 'import' + // check if it already exists, if it does don't add this + XmlSchema existingSchema = (XmlSchema) schemaMap.get(extractedSchema.getTargetNamespace()); + + if (existingSchema == null) { + extractedSchema.setAttributeFormDefault(getAttrFormDefaultSetting()); + extractedSchema.setElementFormDefault(getElementFormDefaultSetting()); + schemaMap.put(extractedSchema.getTargetNamespace(), + extractedSchema); + + } else { + copySchemaItems(existingSchema, + extractedSchema); + } + } + + private void copySchemaItems(XmlSchema existingSchema, XmlSchema aSchema) { + // items to copy are imports, includes, elements, types ... + // each item is checked if it is a duplicate entry and copied only if it isn't + Iterator itemsIterator = aSchema.getItems().getIterator(); + Object schemaObject = null; + XmlSchemaElement schemaElement = null; + XmlSchemaType schemaType = null; + XmlSchemaInclude schemaInclude = null; + QName qName = null; + List existingIncludes = getExistingIncludes(existingSchema); + + while (itemsIterator.hasNext()) { + schemaObject = itemsIterator.next(); + if (schemaObject instanceof XmlSchemaElement) { + schemaElement = (XmlSchemaElement) schemaObject; + qName = schemaElement.getQName(); + // if the element does not exist in the existing schema + if (existingSchema.getElementByName(qName) == null) { + // add it to the existing schema + existingSchema.getElements().add(qName, + schemaElement); + existingSchema.getItems().add(schemaElement); + } + } else if (schemaObject instanceof XmlSchemaType) { + schemaType = (XmlSchemaType) itemsIterator.next(); + qName = schemaType.getQName(); + // if the element does not exist in the existing schema + if (existingSchema.getElementByName(qName) == null) { + // add it to the existing schema + existingSchema.getSchemaTypes().add(qName, + schemaType); + existingSchema.getItems().add(schemaType); + // add imports + addImports(existingSchema, + qName); + } + } else if (schemaObject instanceof XmlSchemaInclude) { + schemaInclude = (XmlSchemaInclude) itemsIterator.next(); + if (!existingIncludes.contains(schemaInclude.getSchemaLocation())) { + existingSchema.getIncludes().add(schemaInclude); + existingSchema.getItems().add(schemaInclude); + } + } + } + } + + private List getExistingIncludes(XmlSchema xmlSchema) { + List includeSchemaLocations = new Vector(); + Iterator iterator = xmlSchema.getIncludes().getIterator(); + + while (iterator.hasNext()) { + includeSchemaLocations.add(((XmlSchemaInclude) iterator.next()).getSchemaLocation()); + } + return includeSchemaLocations; + } + + private XmlSchemaForm getAttrFormDefaultSetting() { + if (FORM_DEFAULT_UNQUALIFIED.equals(getAttrFormDefault())) { + return new XmlSchemaForm(XmlSchemaForm.UNQUALIFIED); + } else { + return new XmlSchemaForm(XmlSchemaForm.QUALIFIED); + } + } + + private XmlSchemaForm getElementFormDefaultSetting() { + if (FORM_DEFAULT_UNQUALIFIED.equals(getElementFormDefault())) { + return new XmlSchemaForm(XmlSchemaForm.UNQUALIFIED); + } else { + return new XmlSchemaForm(XmlSchemaForm.QUALIFIED); + } + } + + private String getToken(String s) { + // get the schema element name eg. <xs:schema or <xsd:schema. We only know that 'schema' will be used + // but not sure what suffix is used. Hence this method to get the actual element name used + int i = s.indexOf(SCHEMA_ELEMENT_NAME); + int j = s.substring(0, + i).lastIndexOf("<"); + return s.substring(j, + i + SCHEMA_ELEMENT_NAME.length()); + } + + public String getAttrFormDefault() { + return attrFormDefault; + } + + public void setAttrFormDefault(String attrFormDefault) { + this.attrFormDefault = attrFormDefault; + } + + public String getElementFormDefault() { + return elementFormDefault; + } + + public void setElementFormDefault(String elementFormDefault) { + this.elementFormDefault = elementFormDefault; + } +} |