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package com.sun.xml.ws.model;
import com.sun.xml.ws.model.AbstractWrapperBeanGenerator.BeanMemberFactory;
import com.sun.xml.bind.v2.model.annotation.AnnotationReader;
import com.sun.xml.bind.v2.model.annotation.RuntimeInlineAnnotationReader;
import com.sun.xml.bind.v2.model.nav.Navigator;
import com.sun.xml.ws.org.objectweb.asm.*;
import static com.sun.xml.ws.org.objectweb.asm.Opcodes.*;
import com.sun.xml.ws.org.objectweb.asm.Type;
import javax.xml.bind.annotation.XmlAttachmentRef;
import javax.xml.bind.annotation.XmlElement;
import javax.xml.bind.annotation.XmlList;
import javax.xml.bind.annotation.XmlMimeType;
import javax.xml.bind.annotation.adapters.XmlJavaTypeAdapter;
import javax.xml.namespace.QName;
import javax.xml.ws.Holder;
import javax.xml.ws.WebServiceException;
import java.lang.annotation.Annotation;
import java.lang.reflect.*;
import java.util.*;
import java.util.logging.Level;
import java.util.logging.Logger;
/**
* Runtime Wrapper and exception bean generator implementation.
* It uses ASM to generate request, response and exception beans.
*
* @author Jitendra Kotamraju
*/
public class WrapperBeanGenerator {
private static final Logger LOGGER = Logger.getLogger(WrapperBeanGenerator.class.getName());
private static final FieldFactory FIELD_FACTORY = new FieldFactory();
private static final AbstractWrapperBeanGenerator RUNTIME_GENERATOR =
new RuntimeWrapperBeanGenerator(new RuntimeInlineAnnotationReader(),
(Navigator) Utils.REFLECTION_NAVIGATOR, FIELD_FACTORY);
private static final class RuntimeWrapperBeanGenerator extends AbstractWrapperBeanGenerator {
protected RuntimeWrapperBeanGenerator(AnnotationReader annReader, Navigator nav, BeanMemberFactory beanMemberFactory) {
super(annReader, nav, beanMemberFactory);
}
@Override
protected java.lang.reflect.Type getSafeType(java.lang.reflect.Type type) {
return type;
}
@Override
protected java.lang.reflect.Type getHolderValueType(java.lang.reflect.Type paramType) {
if (paramType instanceof ParameterizedType) {
ParameterizedType p = (ParameterizedType)paramType;
if (p.getRawType().equals(Holder.class)) {
return p.getActualTypeArguments()[0];
}
}
return null;
}
@Override
protected boolean isVoidType(java.lang.reflect.Type type) {
return type == Void.TYPE;
}
}
private static final class FieldFactory implements BeanMemberFactory {
@Override
public Field createWrapperBeanMember(java.lang.reflect.Type paramType,
String paramName, List jaxb) {
return new Field(paramName, paramType, getASMType(paramType), jaxb);
}
}
// Creates class's bytes
private static byte[] createBeanImage(String className,
String rootName, String rootNS,
String typeName, String typeNS,
Collection fields) throws Exception {
ClassWriter cw = new ClassWriter(0);
//org.objectweb.asm.util.TraceClassVisitor cw = new org.objectweb.asm.util.TraceClassVisitor(actual, new java.io.PrintWriter(System.out));
cw.visit(V1_5, ACC_PUBLIC + ACC_SUPER, replaceDotWithSlash(className), null, "java/lang/Object", null);
AnnotationVisitor root = cw.visitAnnotation("Ljavax/xml/bind/annotation/XmlRootElement;", true);
root.visit("name", rootName);
root.visit("namespace", rootNS);
root.visitEnd();
AnnotationVisitor type = cw.visitAnnotation("Ljavax/xml/bind/annotation/XmlType;", true);
type.visit("name", typeName);
type.visit("namespace", typeNS);
if (fields.size() > 1) {
AnnotationVisitor propVisitor = type.visitArray("propOrder");
for(Field field : fields) {
propVisitor.visit("propOrder", field.fieldName);
}
propVisitor.visitEnd();
}
type.visitEnd();
for(Field field : fields) {
FieldVisitor fv = cw.visitField(ACC_PUBLIC, field.fieldName, field.asmType.getDescriptor(), field.getSignature(), null);
for(Annotation ann : field.jaxbAnnotations) {
if (ann instanceof XmlMimeType) {
AnnotationVisitor mime = fv.visitAnnotation("Ljavax/xml/bind/annotation/XmlMimeType;", true);
mime.visit("value", ((XmlMimeType)ann).value());
mime.visitEnd();
} else if (ann instanceof XmlJavaTypeAdapter) {
AnnotationVisitor ada = fv.visitAnnotation("Ljavax/xml/bind/annotation/adapters/XmlJavaTypeAdapter;", true);
ada.visit("value", getASMType(((XmlJavaTypeAdapter)ann).value()));
// XmlJavaTypeAdapter.type() is for package only. No need to copy.
// ada.visit("type", ((XmlJavaTypeAdapter)ann).type());
ada.visitEnd();
} else if (ann instanceof XmlAttachmentRef) {
AnnotationVisitor att = fv.visitAnnotation("Ljavax/xml/bind/annotation/XmlAttachmentRef;", true);
att.visitEnd();
} else if (ann instanceof XmlList) {
AnnotationVisitor list = fv.visitAnnotation("Ljavax/xml/bind/annotation/XmlList;", true);
list.visitEnd();
} else if (ann instanceof XmlElement) {
AnnotationVisitor elem = fv.visitAnnotation("Ljavax/xml/bind/annotation/XmlElement;", true);
XmlElement xmlElem = (XmlElement)ann;
elem.visit("name", xmlElem.name());
elem.visit("namespace", xmlElem.namespace());
if (xmlElem.nillable()) {
elem.visit("nillable", true);
}
if (xmlElem.required()) {
elem.visit("required", true);
}
elem.visitEnd();
} else {
throw new WebServiceException("Unknown JAXB annotation " + ann);
}
}
fv.visitEnd();
}
MethodVisitor mv = cw.visitMethod(ACC_PUBLIC, "", "()V", null, null);
mv.visitCode();
mv.visitVarInsn(ALOAD, 0);
mv.visitMethodInsn(INVOKESPECIAL, "java/lang/Object", "", "()V");
mv.visitInsn(RETURN);
mv.visitMaxs(1, 1);
mv.visitEnd();
cw.visitEnd();
if (LOGGER.isLoggable(Level.FINE)) {
// Class's @XmlRootElement
StringBuilder sb = new StringBuilder();
sb.append("\n");
sb.append("@XmlRootElement(name=").append(rootName)
.append(", namespace=").append(rootNS).append(")");
// Class's @XmlType
sb.append("\n");
sb.append("@XmlType(name=").append(typeName)
.append(", namespace=").append(typeNS);
if (fields.size() > 1) {
sb.append(", propOrder={");
for(Field field : fields) {
sb.append(" ");
sb.append(field.fieldName);
}
sb.append(" }");
}
sb.append(")");
// class declaration
sb.append("\n");
sb.append("public class ").append(className).append(" {");
// fields declaration
for(Field field : fields) {
sb.append("\n");
// Field's other JAXB annotations
for(Annotation ann : field.jaxbAnnotations) {
sb.append("\n ");
if (ann instanceof XmlMimeType) {
sb.append("@XmlMimeType(value=").append(((XmlMimeType)ann).value()).append(")");
} else if (ann instanceof XmlJavaTypeAdapter) {
sb.append("@XmlJavaTypeAdapter(value=").append(getASMType(((XmlJavaTypeAdapter)ann).value())).append(")");
} else if (ann instanceof XmlAttachmentRef) {
sb.append("@XmlAttachmentRef");
} else if (ann instanceof XmlList) {
sb.append("@XmlList");
} else if (ann instanceof XmlElement) {
XmlElement xmlElem = (XmlElement)ann;
sb.append("\n ");
sb.append("@XmlElement(name=").append(xmlElem.name())
.append(", namespace=").append(xmlElem.namespace());
if (xmlElem.nillable()) {
sb.append(", nillable=true");
}
if (xmlElem.required()) {
sb.append(", required=true");
}
sb.append(")");
} else {
throw new WebServiceException("Unknown JAXB annotation " + ann);
}
}
// Field declaration
sb.append("\n ");
sb.append("public ");
if (field.getSignature() == null) {
sb.append(field.asmType.getDescriptor());
} else {
sb.append(field.getSignature());
}
sb.append(" ");
sb.append(field.fieldName);
}
sb.append("\n\n}");
LOGGER.fine(sb.toString());
}
return cw.toByteArray();
}
private static String replaceDotWithSlash(String name) {
return name.replace('.', '/');
}
static Class createRequestWrapperBean(String className, Method method, QName reqElemName, ClassLoader cl) {
if (LOGGER.isLoggable(Level.FINE)) {
LOGGER.log(Level.FINE, "Request Wrapper Class : {0}", className);
}
List requestMembers = RUNTIME_GENERATOR.collectRequestBeanMembers(
method);
byte[] image;
try {
image = createBeanImage(className, reqElemName.getLocalPart(), reqElemName.getNamespaceURI(),
reqElemName.getLocalPart(), reqElemName.getNamespaceURI(),
requestMembers);
} catch(Exception e) {
throw new WebServiceException(e);
}
// write(image, className);
return Injector.inject(cl, className, image);
}
static Class createResponseWrapperBean(String className, Method method, QName resElemName, ClassLoader cl) {
if (LOGGER.isLoggable(Level.FINE)) {
LOGGER.log(Level.FINE, "Response Wrapper Class : {0}", className);
}
List responseMembers = RUNTIME_GENERATOR.collectResponseBeanMembers(method);
byte[] image;
try {
image = createBeanImage(className, resElemName.getLocalPart(), resElemName.getNamespaceURI(),
resElemName.getLocalPart(), resElemName.getNamespaceURI(),
responseMembers);
} catch(Exception e) {
throw new WebServiceException(e);
}
// write(image, className);
return Injector.inject(cl, className, image);
}
private static Type getASMType(java.lang.reflect.Type t) {
assert t!=null;
if (t instanceof Class) {
return Type.getType((Class)t);
}
if (t instanceof ParameterizedType) {
ParameterizedType pt = (ParameterizedType)t;
if (pt.getRawType() instanceof Class) {
return Type.getType((Class)pt.getRawType());
}
}
if (t instanceof GenericArrayType) {
return Type.getType(FieldSignature.vms(t));
}
if (t instanceof WildcardType) {
return Type.getType(FieldSignature.vms(t));
}
if (t instanceof TypeVariable) {
TypeVariable tv = (TypeVariable)t;
if (tv.getBounds()[0] instanceof Class) {
return Type.getType((Class)tv.getBounds()[0]);
}
}
throw new IllegalArgumentException("Not creating ASM Type for type = "+t);
}
static Class createExceptionBean(String className, Class exception, String typeNS, String elemName, String elemNS, ClassLoader cl) {
return createExceptionBean(className, exception, typeNS, elemName, elemNS, cl, true);
}
static Class createExceptionBean(String className, Class exception, String typeNS, String elemName, String elemNS, ClassLoader cl, boolean decapitalizeExceptionBeanProperties) {
Collection fields = RUNTIME_GENERATOR.collectExceptionBeanMembers(exception, decapitalizeExceptionBeanProperties);
byte[] image;
try {
image = createBeanImage(className, elemName, elemNS,
exception.getSimpleName(), typeNS,
fields);
} catch(Exception e) {
throw new WebServiceException(e);
}
return Injector.inject(cl, className, image);
}
/**
* Note: this class has a natural ordering that is inconsistent with equals.
*/
private static class Field implements Comparable {
private final java.lang.reflect.Type reflectType;
private final Type asmType;
private final String fieldName;
private final List jaxbAnnotations;
Field(String paramName, java.lang.reflect.Type paramType, Type asmType,
List jaxbAnnotations) {
this.reflectType = paramType;
this.asmType = asmType;
this.fieldName = paramName;
this.jaxbAnnotations = jaxbAnnotations;
}
String getSignature() {
if (reflectType instanceof Class) {
return null;
}
if (reflectType instanceof TypeVariable) {
return null;
}
return FieldSignature.vms(reflectType);
}
@Override
public int compareTo(Field o) {
return fieldName.compareTo(o.fieldName);
}
}
static void write(byte[] b, String className) {
className = className.substring(className.lastIndexOf(".")+1);
try {
java.io.FileOutputStream fo = new java.io.FileOutputStream(className + ".class");
fo.write(b);
fo.flush();
fo.close();
} catch (java.io.IOException e) {
LOGGER.log(Level.INFO, "Error Writing class", e);
}
}
}
