| /* |
| * Copyright 2005-2006 Sun Microsystems, Inc. All Rights Reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Sun designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Sun in the LICENSE file that accompanied this code. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| * CA 95054 USA or visit www.sun.com if you need additional information or |
| * have any questions. |
| */ |
| package com.sun.tools.internal.xjc.generator.bean; |
| |
| import java.util.Collection; |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| import javax.xml.bind.JAXBException; |
| import javax.xml.namespace.QName; |
| |
| import com.sun.codemodel.internal.JClass; |
| import com.sun.codemodel.internal.JCodeModel; |
| import com.sun.codemodel.internal.JDefinedClass; |
| import com.sun.codemodel.internal.JExpr; |
| import com.sun.codemodel.internal.JExpression; |
| import com.sun.codemodel.internal.JFieldVar; |
| import com.sun.codemodel.internal.JInvocation; |
| import com.sun.codemodel.internal.JMethod; |
| import com.sun.codemodel.internal.JMod; |
| import com.sun.codemodel.internal.JPackage; |
| import com.sun.codemodel.internal.JType; |
| import com.sun.codemodel.internal.JVar; |
| import com.sun.tools.internal.xjc.generator.annotation.spec.XmlElementDeclWriter; |
| import com.sun.tools.internal.xjc.generator.annotation.spec.XmlRegistryWriter; |
| import com.sun.tools.internal.xjc.model.CElementInfo; |
| import com.sun.tools.internal.xjc.model.CPropertyInfo; |
| import com.sun.tools.internal.xjc.model.Constructor; |
| import com.sun.tools.internal.xjc.model.Model; |
| import com.sun.tools.internal.xjc.outline.Aspect; |
| import com.sun.tools.internal.xjc.outline.FieldAccessor; |
| import com.sun.tools.internal.xjc.outline.FieldOutline; |
| import com.sun.xml.internal.bind.v2.TODO; |
| |
| /** |
| * Generates <code>ObjectFactory</code> then wraps it and provides |
| * access to it. |
| * |
| * <p> |
| * The ObjectFactory contains |
| * factory methods for each schema derived content class |
| * |
| * @author |
| * Ryan Shoemaker |
| */ |
| abstract class ObjectFactoryGeneratorImpl extends ObjectFactoryGenerator { |
| |
| private final BeanGenerator outline; |
| private final Model model; |
| private final JCodeModel codeModel; |
| /** |
| * Ref to {@link Class}. |
| */ |
| private final JClass classRef; |
| |
| /** |
| * Reference to the generated ObjectFactory class. |
| */ |
| private final JDefinedClass objectFactory; |
| |
| /** map of qname to the QName constant field. */ |
| private final HashMap<QName,JFieldVar> qnameMap = new HashMap<QName,JFieldVar>(); |
| |
| /** |
| * Names of the element factory methods that are created. |
| * Used to detect collisions. |
| * |
| * The value is used for reporting error locations. |
| */ |
| private final Map<String,CElementInfo> elementFactoryNames = new HashMap<String,CElementInfo>(); |
| |
| /** |
| * Names of the value factory methods that are created. |
| * Used to detect collisions. |
| * |
| * The value is used for reporting error locations. |
| */ |
| private final Map<String,ClassOutlineImpl> valueFactoryNames = new HashMap<String,ClassOutlineImpl>(); |
| |
| /** |
| * Returns a reference to the generated (public) ObjectFactory |
| */ |
| public JDefinedClass getObjectFactory() { |
| return objectFactory; |
| } |
| |
| |
| |
| |
| public ObjectFactoryGeneratorImpl( BeanGenerator outline, Model model, JPackage targetPackage ) { |
| this.outline = outline; |
| this.model = model; |
| this.codeModel = this.model.codeModel; |
| this.classRef = codeModel.ref(Class.class); |
| |
| // create the ObjectFactory class skeleton |
| objectFactory = this.outline.getClassFactory().createClass( |
| targetPackage, "ObjectFactory", null ); |
| objectFactory.annotate2(XmlRegistryWriter.class); |
| |
| // generate the default constructor |
| // |
| // m1 result: |
| // public ObjectFactory() {} |
| JMethod m1 = objectFactory.constructor(JMod.PUBLIC); |
| m1.javadoc().append("Create a new ObjectFactory that can be used to " + |
| "create new instances of schema derived classes " + |
| "for package: " + targetPackage.name()); |
| |
| // add some class javadoc |
| objectFactory.javadoc().append( |
| "This object contains factory methods for each \n" + |
| "Java content interface and Java element interface \n" + |
| "generated in the " + targetPackage.name() + " package. \n" + |
| "<p>An ObjectFactory allows you to programatically \n" + |
| "construct new instances of the Java representation \n" + |
| "for XML content. The Java representation of XML \n" + |
| "content can consist of schema derived interfaces \n" + |
| "and classes representing the binding of schema \n" + |
| "type definitions, element declarations and model \n" + |
| "groups. Factory methods for each of these are \n" + |
| "provided in this class." ); |
| |
| } |
| |
| /** |
| * Adds code for the given {@link CElementInfo} to ObjectFactory. |
| */ |
| protected final void populate( CElementInfo ei, Aspect impl, Aspect exposed ) { |
| JType exposedElementType = ei.toType(outline,exposed); |
| JType exposedType = ei.getContentInMemoryType().toType(outline,exposed); |
| JType implType = ei.getContentInMemoryType().toType(outline,impl); |
| String namespaceURI = ei.getElementName().getNamespaceURI(); |
| String localPart = ei.getElementName().getLocalPart(); |
| |
| JClass scope=null; |
| if(ei.getScope()!=null) |
| scope = outline.getClazz(ei.getScope()).implRef; |
| |
| |
| JMethod m; |
| |
| if(ei.isAbstract()) { |
| // TODO: see the "Abstract elements and mighty IXmlElement" e-mail |
| // that I sent to jaxb-tech |
| TODO.checkSpec(); |
| } |
| |
| {// collision check |
| CElementInfo existing = elementFactoryNames.put(ei.getSqueezedName(),ei); |
| if( existing!=null ) { |
| outline.getErrorReceiver().error(existing.getLocator(), |
| Messages.OBJECT_FACTORY_CONFLICT.format(ei.getSqueezedName())); |
| outline.getErrorReceiver().error(ei.getLocator(), |
| Messages.OBJECT_FACTORY_CONFLICT_RELATED.format()); |
| return; |
| } |
| } |
| |
| // no arg constructor |
| // [RESULT] if the element doesn't have its own class, something like: |
| // |
| // @XmlElementMapping(uri = "", name = "foo") |
| // public JAXBElement<Foo> createFoo( Foo value ) { |
| // return new JAXBElement<Foo>( |
| // new QName("","foo"),(Class)FooImpl.class,scope,(FooImpl)value); |
| // } |
| // NOTE: when we generate value classes Foo==FooImpl |
| // |
| // [RESULT] otherwise |
| // |
| // @XmlElementMapping(uri = "", name = "foo") |
| // public Foo createFoo( FooType value ) { |
| // return new Foo((FooTypeImpl)value); |
| // } |
| // NOTE: when we generate value classes FooType==FooTypeImpl |
| // |
| // to deal with |
| // new JAXBElement<List<String>>( ..., List.class, ... ); |
| // we sometimes have to produce (Class)List.class instead of just List.class |
| |
| m = objectFactory.method( JMod.PUBLIC, exposedElementType, "create" + ei.getSqueezedName() ); |
| JVar $value = m.param(exposedType,"value"); |
| |
| JExpression declaredType; |
| if(implType.boxify().isParameterized() || !exposedType.equals(implType)) |
| declaredType = JExpr.cast(classRef,implType.boxify().dotclass()); |
| else |
| declaredType = implType.boxify().dotclass(); |
| JExpression scopeClass = scope==null?JExpr._null():scope.dotclass(); |
| |
| // build up the return extpression |
| JInvocation exp = JExpr._new(exposedElementType); |
| if(!ei.hasClass()) { |
| exp.arg(getQNameInvocation(ei)); |
| exp.arg(declaredType); |
| exp.arg(scopeClass); |
| } |
| if(implType==exposedType) |
| exp.arg($value); |
| else |
| exp.arg(JExpr.cast(implType,$value)); |
| |
| m.body()._return( exp ); |
| |
| m.javadoc() |
| .append("Create an instance of ") |
| .append(exposedElementType) |
| .append("}"); |
| |
| XmlElementDeclWriter xemw = m.annotate2(XmlElementDeclWriter.class); |
| xemw.namespace(namespaceURI).name(localPart); |
| if(scope!=null) |
| xemw.scope(scope); |
| |
| if(ei.getSubstitutionHead()!=null) { |
| QName n = ei.getSubstitutionHead().getElementName(); |
| xemw.substitutionHeadNamespace(n.getNamespaceURI()); |
| xemw.substitutionHeadName(n.getLocalPart()); |
| } |
| |
| if(ei.getDefaultValue()!=null) |
| xemw.defaultValue(ei.getDefaultValue()); |
| |
| // if the element is adapter, put that annotation on the factory method |
| outline.generateAdapterIfNecessary(ei.getProperty(),m); |
| } |
| |
| /** |
| * return a JFieldVar that represents the QName field for the given information. |
| * |
| * if it doesn't exist, create a static field in the class and store a new JFieldVar. |
| */ |
| private JExpression getQNameInvocation(CElementInfo ei) { |
| QName name = ei.getElementName(); |
| if(qnameMap.containsKey(name)) { |
| return qnameMap.get(name); |
| } |
| |
| if(qnameMap.size()>1024) |
| // stop gap measure to avoid 'code too large' error in javac. |
| return createQName(name); |
| |
| // [RESULT] |
| // private static final QName _XYZ_NAME = new QName("uri", "local"); |
| JFieldVar qnameField = objectFactory.field( |
| JMod.PRIVATE | JMod.STATIC | JMod.FINAL, |
| QName.class, |
| '_' + ei.getSqueezedName() + "_QNAME", createQName(name)); |
| |
| qnameMap.put(name, qnameField); |
| |
| return qnameField; |
| } |
| |
| /** |
| * Generates an expression that evaluates to "new QName(...)" |
| */ |
| private JInvocation createQName(QName name) { |
| return JExpr._new(codeModel.ref(QName.class)).arg(name.getNamespaceURI()).arg(name.getLocalPart()); |
| } |
| |
| protected final void populate( ClassOutlineImpl cc, JClass sigType ) { |
| // add static factory method for this class to JAXBContext. |
| // |
| // generate methods like: |
| // public static final SIGTYPE createFoo() { |
| // return new FooImpl(); |
| // } |
| |
| if(!cc.target.isAbstract()) { |
| JMethod m = objectFactory.method( |
| JMod.PUBLIC, sigType, "create" + cc.target.getSqueezedName() ); |
| m.body()._return( JExpr._new(cc.implRef) ); |
| |
| // add some jdoc to avoid javadoc warnings in jdk1.4 |
| m.javadoc() |
| .append("Create an instance of ") |
| .append(cc.ref); |
| } |
| |
| |
| // add static factory methods for all the other constructors. |
| Collection<? extends Constructor> consl = cc.target.getConstructors(); |
| if(consl.size()!=0) { |
| // if we are going to add constructors with parameters, |
| // first we need to have a default constructor. |
| cc.implClass.constructor(JMod.PUBLIC); |
| } |
| |
| {// collision check |
| String name = cc.target.getSqueezedName(); |
| ClassOutlineImpl existing = valueFactoryNames.put(name,cc); |
| if( existing!=null ) { |
| outline.getErrorReceiver().error(existing.target.getLocator(), |
| Messages.OBJECT_FACTORY_CONFLICT.format(name)); |
| outline.getErrorReceiver().error(cc.target.getLocator(), |
| Messages.OBJECT_FACTORY_CONFLICT_RELATED.format()); |
| return; |
| } |
| } |
| |
| for( Constructor cons : consl ) { |
| // method on ObjectFactory |
| // [RESULT] |
| // Foo createFoo( T1 a, T2 b, T3 c, ... ) throws JAXBException { |
| // return new FooImpl(a,b,c,...); |
| // } |
| JMethod m = objectFactory.method( JMod.PUBLIC, |
| cc.ref, "create" + cc.target.getSqueezedName() ); |
| JInvocation inv = JExpr._new(cc.implRef); |
| m.body()._return(inv); |
| |
| // let's not throw this exception. |
| // m._throws(codeModel.ref(JAXBException.class)); |
| |
| // add some jdoc to avoid javadoc warnings in jdk1.4 |
| m.javadoc() |
| .append( "Create an instance of " ) |
| .append( cc.ref ) |
| .addThrows(JAXBException.class).append("if an error occurs"); |
| |
| // constructor |
| // [RESULT] |
| // FooImpl( T1 a, T2 b, T3 c, ... ) { |
| // } |
| JMethod c = cc.implClass.constructor(JMod.PUBLIC); |
| |
| for( String fieldName : cons.fields ) { |
| CPropertyInfo field = cc.target.getProperty(fieldName); |
| if(field==null) { |
| outline.getErrorReceiver().error(cc.target.getLocator(), |
| Messages.ILLEGAL_CONSTRUCTOR_PARAM.format(fieldName)); |
| continue; |
| } |
| |
| fieldName = camelize(fieldName); |
| |
| FieldOutline fo = outline.getField(field); |
| FieldAccessor accessor = fo.create(JExpr._this()); |
| |
| // declare a parameter on this factory method and set |
| // it to the field |
| inv.arg(m.param( fo.getRawType(), fieldName )); |
| |
| JVar $var = c.param( fo.getRawType(), fieldName ); |
| accessor.fromRawValue(c.body(),'_'+fieldName,$var); |
| } |
| } |
| } |
| |
| |
| /** Change the first character to the lower case. */ |
| private static String camelize( String s ) { |
| return Character.toLowerCase(s.charAt(0)) + s.substring(1); |
| } |
| } |