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org.apache.cxf.jaxws.WrapperClassGenerator Maven / Gradle / Ivy
/**
* 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.cxf.jaxws;
import java.lang.annotation.Annotation;
import java.lang.reflect.GenericArrayType;
import java.lang.reflect.Method;
import java.lang.reflect.ParameterizedType;
import java.lang.reflect.Type;
import java.util.Collection;
import java.util.LinkedHashSet;
import java.util.List;
import java.util.Set;
import java.util.logging.Logger;
import javax.xml.bind.annotation.XmlAttachmentRef;
import javax.xml.bind.annotation.XmlElement;
import javax.xml.bind.annotation.XmlElementWrapper;
import javax.xml.bind.annotation.XmlList;
import javax.xml.bind.annotation.XmlMimeType;
import javax.xml.bind.annotation.XmlNsForm;
import javax.xml.bind.annotation.adapters.XmlJavaTypeAdapter;
import javax.xml.bind.annotation.adapters.XmlJavaTypeAdapters;
import javax.xml.namespace.QName;
import javax.xml.ws.Holder;
import org.apache.cxf.common.jaxb.JAXBUtils;
import org.apache.cxf.common.logging.LogUtils;
import org.apache.cxf.common.util.ASMHelper;
import org.apache.cxf.common.util.PackageUtils;
import org.apache.cxf.common.util.StringUtils;
import org.apache.cxf.helpers.JavaUtils;
import org.apache.cxf.jaxws.support.JaxWsServiceFactoryBean;
import org.apache.cxf.service.factory.ReflectionServiceFactoryBean;
import org.apache.cxf.service.model.InterfaceInfo;
import org.apache.cxf.service.model.MessageInfo;
import org.apache.cxf.service.model.MessagePartInfo;
import org.apache.cxf.service.model.OperationInfo;
import org.apache.cxf.service.model.SchemaInfo;
public final class WrapperClassGenerator extends ASMHelper {
public static final String DEFAULT_PACKAGE_NAME = "defaultnamespace";
private static final Logger LOG = LogUtils.getL7dLogger(WrapperClassGenerator.class);
private Set> wrapperBeans = new LinkedHashSet>();
private InterfaceInfo interfaceInfo;
private boolean qualified;
private JaxWsServiceFactoryBean factory;
public WrapperClassGenerator(JaxWsServiceFactoryBean fact, InterfaceInfo inf, boolean q) {
factory = fact;
interfaceInfo = inf;
qualified = q;
}
private String getPackageName(Method method) {
String pkg = PackageUtils.getPackageName(method.getDeclaringClass());
return pkg.length() == 0 ? DEFAULT_PACKAGE_NAME : pkg;
}
private Annotation[] getMethodParameterAnnotations(final MessagePartInfo mpi) {
Annotation[] a = (Annotation[])mpi.getProperty(ReflectionServiceFactoryBean.PARAM_ANNOTATION);
if (a != null) {
return a;
}
Annotation[][] paramAnno = (Annotation[][])mpi
.getProperty(ReflectionServiceFactoryBean.METHOD_PARAM_ANNOTATIONS);
int index = mpi.getIndex();
if (paramAnno != null && index < paramAnno.length && index >= 0) {
return paramAnno[index];
}
return null;
}
private List getJaxbAnnos(MessagePartInfo mpi) {
List list = new java.util.concurrent.CopyOnWriteArrayList();
Annotation[] anns = getMethodParameterAnnotations(mpi);
if (anns != null) {
for (Annotation anno : anns) {
if (anno.annotationType() == XmlList.class
|| anno.annotationType() == XmlAttachmentRef.class
|| anno.annotationType() == XmlJavaTypeAdapter.class
|| anno.annotationType() == XmlMimeType.class
|| anno.annotationType() == XmlElement.class
|| anno.annotationType() == XmlElementWrapper.class) {
list.add(anno);
}
}
}
return list;
}
public Set> generate() {
for (OperationInfo opInfo : interfaceInfo.getOperations()) {
if (opInfo.isUnwrappedCapable()) {
Method method = (Method)opInfo.getProperty(ReflectionServiceFactoryBean.METHOD);
if (method == null) {
continue;
}
MessagePartInfo inf = opInfo.getInput().getMessageParts().get(0);
if (inf.getTypeClass() == null) {
MessageInfo messageInfo = opInfo.getUnwrappedOperation().getInput();
createWrapperClass(inf,
messageInfo,
opInfo,
method,
true);
}
MessageInfo messageInfo = opInfo.getUnwrappedOperation().getOutput();
if (messageInfo != null) {
inf = opInfo.getOutput().getMessageParts().get(0);
if (inf.getTypeClass() == null) {
createWrapperClass(inf,
messageInfo,
opInfo,
method,
false);
}
}
}
}
return wrapperBeans;
}
private void createWrapperClass(MessagePartInfo wrapperPart,
MessageInfo messageInfo,
OperationInfo op,
Method method,
boolean isRequest) {
ClassWriter cw = createClassWriter();
if (cw == null) {
LOG.warning(op.getName() + "requires a wrapper bean but problems with"
+ " ASM has prevented creating one. Operation may not work correctly.");
return;
}
QName wrapperElement = messageInfo.getName();
boolean anonymous = factory.getAnonymousWrapperTypes();
String pkg = getPackageName(method) + ".jaxws_asm" + (anonymous ? "_an" : "");
String className = pkg + "."
+ StringUtils.capitalize(op.getName().getLocalPart());
if (!isRequest) {
className = className + "Response";
}
String pname = pkg + ".package-info";
Class def = findClass(pname, method.getDeclaringClass());
if (def == null) {
generatePackageInfo(pname, wrapperElement.getNamespaceURI(),
method.getDeclaringClass());
}
def = findClass(className, method.getDeclaringClass());
String origClassName = className;
int count = 0;
while (def != null) {
Boolean b = messageInfo.getProperty("parameterized", Boolean.class);
if (b != null && b) {
className = origClassName + (++count);
def = findClass(className, method.getDeclaringClass());
} else {
wrapperPart.setTypeClass(def);
wrapperBeans.add(def);
return;
}
}
String classFileName = periodToSlashes(className);
cw.visit(Opcodes.V1_5, Opcodes.ACC_PUBLIC + Opcodes.ACC_SUPER, classFileName, null,
"java/lang/Object", null);
AnnotationVisitor av0 = cw.visitAnnotation("Ljavax/xml/bind/annotation/XmlRootElement;", true);
av0.visit("name", wrapperElement.getLocalPart());
av0.visit("namespace", wrapperElement.getNamespaceURI());
av0.visitEnd();
av0 = cw.visitAnnotation("Ljavax/xml/bind/annotation/XmlAccessorType;", true);
av0.visitEnum("value", "Ljavax/xml/bind/annotation/XmlAccessType;", "FIELD");
av0.visitEnd();
av0 = cw.visitAnnotation("Ljavax/xml/bind/annotation/XmlType;", true);
if (!anonymous) {
av0.visit("name", wrapperElement.getLocalPart());
av0.visit("namespace", wrapperElement.getNamespaceURI());
} else {
av0.visit("name", "");
}
av0.visitEnd();
// add constructor
MethodVisitor mv = cw.visitMethod(Opcodes.ACC_PUBLIC, "", "()V", null, null);
mv.visitCode();
Label lbegin = createLabel();
mv.visitLabel(lbegin);
mv.visitVarInsn(Opcodes.ALOAD, 0);
mv.visitMethodInsn(Opcodes.INVOKESPECIAL, "java/lang/Object", "", "()V");
mv.visitInsn(Opcodes.RETURN);
Label lend = createLabel();
mv.visitLabel(lend);
mv.visitLocalVariable("this", "L" + classFileName + ";", null, lbegin, lend, 0);
mv.visitMaxs(1, 1);
mv.visitEnd();
for (MessagePartInfo mpi : messageInfo.getMessageParts()) {
generateMessagePart(cw, mpi, method, classFileName);
}
cw.visitEnd();
Class clz = loadClass(className, method.getDeclaringClass(), cw.toByteArray());
wrapperPart.setTypeClass(clz);
wrapperBeans.add(clz);
}
private void generatePackageInfo(String className, String ns, Class clz) {
ClassWriter cw = createClassWriter();
String classFileName = periodToSlashes(className);
cw.visit(Opcodes.V1_5, Opcodes.ACC_ABSTRACT + Opcodes.ACC_INTERFACE, classFileName, null,
"java/lang/Object", null);
boolean q = qualified;
SchemaInfo si = interfaceInfo.getService().getSchema(ns);
if (si != null) {
q = si.isElementFormQualified();
}
AnnotationVisitor av0 = cw.visitAnnotation("Ljavax/xml/bind/annotation/XmlSchema;", true);
av0.visit("namespace", ns);
av0.visitEnum("elementFormDefault",
getClassCode(XmlNsForm.class),
q ? "QUALIFIED" : "UNQUALIFIED");
av0.visitEnd();
if (clz.getPackage() != null && clz.getPackage().getAnnotations() != null) {
for (Annotation ann : clz.getPackage().getAnnotations()) {
if (ann instanceof XmlJavaTypeAdapters) {
av0 = cw.visitAnnotation("Ljavax/xml/bind/annotation/adapters/XmlJavaTypeAdapters;", true);
generateXmlJavaTypeAdapters(av0, (XmlJavaTypeAdapters)ann);
av0.visitEnd();
} else if (ann instanceof XmlJavaTypeAdapter) {
av0 = cw.visitAnnotation("Ljavax/xml/bind/annotation/adapters/XmlJavaTypeAdapter;", true);
generateXmlJavaTypeAdapter(av0, (XmlJavaTypeAdapter)ann);
av0.visitEnd();
}
}
}
cw.visitEnd();
loadClass(className, clz, cw.toByteArray());
}
private void generateXmlJavaTypeAdapters(AnnotationVisitor av, XmlJavaTypeAdapters adapters) {
AnnotationVisitor av1 = av.visitArray("value");
for (XmlJavaTypeAdapter adapter : adapters.value()) {
AnnotationVisitor av2
= av1.visitAnnotation(null, "Ljavax/xml/bind/annotation/adapters/XmlJavaTypeAdapter;");
generateXmlJavaTypeAdapter(av2, adapter);
av2.visitEnd();
}
av1.visitEnd();
}
private void generateXmlJavaTypeAdapter(AnnotationVisitor av, XmlJavaTypeAdapter adapter) {
if (adapter.value() != null) {
av.visit("value", getType(getClassCode(adapter.value())));
}
if (adapter.type() != javax.xml.bind.annotation.adapters.XmlJavaTypeAdapter.DEFAULT.class) {
av.visit("type", getType(getClassCode(adapter.type())));
}
}
private void generateMessagePart(ClassWriter cw, MessagePartInfo mpi,
Method method, String className) {
if (Boolean.TRUE.equals(mpi.getProperty(ReflectionServiceFactoryBean.HEADER))) {
return;
}
String classFileName = periodToSlashes(className);
String name = mpi.getName().getLocalPart();
Class clz = mpi.getTypeClass();
Object obj = mpi.getProperty(ReflectionServiceFactoryBean.RAW_CLASS);
if (obj != null) {
clz = (Class)obj;
}
Type genericType = (Type)mpi.getProperty(ReflectionServiceFactoryBean.GENERIC_TYPE);
if (genericType instanceof ParameterizedType) {
ParameterizedType tp = (ParameterizedType)genericType;
if (tp.getRawType() instanceof Class
&& Holder.class.isAssignableFrom((Class)tp.getRawType())) {
genericType = tp.getActualTypeArguments()[0];
}
}
String classCode = getClassCode(clz);
String fieldDescriptor = null;
if (genericType instanceof ParameterizedType) {
if (Collection.class.isAssignableFrom(clz) || clz.isArray()) {
ParameterizedType ptype = (ParameterizedType)genericType;
java.lang.reflect.Type[] types = ptype.getActualTypeArguments();
// TODO: more complex Parameterized type
if (types.length > 0) {
if (types[0] instanceof Class) {
fieldDescriptor = getClassCode(genericType);
} else if (types[0] instanceof GenericArrayType) {
fieldDescriptor = getClassCode(genericType);
} else if (types[0] instanceof ParameterizedType) {
classCode = getClassCode(((ParameterizedType)types[0]).getRawType());
fieldDescriptor = getClassCode(genericType);
}
}
} else {
classCode = getClassCode(((ParameterizedType)genericType).getRawType());
fieldDescriptor = getClassCode(genericType);
}
}
String fieldName = JavaUtils.isJavaKeyword(name) ? JavaUtils.makeNonJavaKeyword(name) : name;
FieldVisitor fv = cw.visitField(Opcodes.ACC_PRIVATE,
fieldName,
classCode,
fieldDescriptor,
null);
List jaxbAnnos = getJaxbAnnos(mpi);
if (!addJAXBAnnotations(fv, jaxbAnnos, name)) {
AnnotationVisitor av0 = fv.visitAnnotation("Ljavax/xml/bind/annotation/XmlElement;", true);
av0.visit("name", name);
if (factory.isWrapperPartQualified(mpi)) {
av0.visit("namespace", mpi.getConcreteName().getNamespaceURI());
}
if (factory.isWrapperPartNillable(mpi)) {
av0.visit("nillable", Boolean.TRUE);
}
if (factory.getWrapperPartMinOccurs(mpi) == 1) {
av0.visit("required", Boolean.TRUE);
}
av0.visitEnd();
}
fv.visitEnd();
String methodName = JAXBUtils.nameToIdentifier(name, JAXBUtils.IdentifierType.GETTER);
MethodVisitor mv = cw.visitMethod(Opcodes.ACC_PUBLIC, methodName, "()" + classCode,
fieldDescriptor == null ? null : "()" + fieldDescriptor,
null);
mv.visitCode();
mv.visitVarInsn(Opcodes.ALOAD, 0);
mv.visitFieldInsn(Opcodes.GETFIELD, classFileName, fieldName, classCode);
mv.visitInsn(getType(classCode).getOpcode(Opcodes.IRETURN));
mv.visitMaxs(0, 0);
mv.visitEnd();
methodName = JAXBUtils.nameToIdentifier(name, JAXBUtils.IdentifierType.SETTER);
mv = cw.visitMethod(Opcodes.ACC_PUBLIC, methodName, "(" + classCode + ")V",
fieldDescriptor == null ? null : "(" + fieldDescriptor + ")V", null);
mv.visitCode();
mv.visitVarInsn(Opcodes.ALOAD, 0);
ASMType setType = getType(classCode);
mv.visitVarInsn(setType.getOpcode(Opcodes.ILOAD), 1);
mv.visitFieldInsn(Opcodes.PUTFIELD, className, fieldName, classCode);
mv.visitInsn(Opcodes.RETURN);
mv.visitMaxs(0, 0);
mv.visitEnd();
}
private boolean addJAXBAnnotations(FieldVisitor fv,
List jaxbAnnos,
String name) {
AnnotationVisitor av0;
boolean addedEl = false;
for (Annotation ann : jaxbAnnos) {
if (ann instanceof XmlMimeType) {
av0 = fv.visitAnnotation("Ljavax/xml/bind/annotation/XmlMimeType;", true);
av0.visit("value", ((XmlMimeType)ann).value());
av0.visitEnd();
} else if (ann instanceof XmlJavaTypeAdapter) {
av0 = fv.visitAnnotation("Ljavax/xml/bind/annotation/adapters/XmlJavaTypeAdapter;", true);
generateXmlJavaTypeAdapter(av0, (XmlJavaTypeAdapter)ann);
av0.visitEnd();
} else if (ann instanceof XmlAttachmentRef) {
av0 = fv.visitAnnotation("Ljavax/xml/bind/annotation/XmlAttachmentRef;", true);
av0.visitEnd();
} else if (ann instanceof XmlList) {
av0 = fv.visitAnnotation("Ljavax/xml/bind/annotation/XmlList;", true);
av0.visitEnd();
} else if (ann instanceof XmlElement) {
addedEl = true;
XmlElement el = (XmlElement)ann;
av0 = fv.visitAnnotation("Ljavax/xml/bind/annotation/XmlElement;", true);
if ("##default".equals(el.name())) {
av0.visit("name", name);
} else {
av0.visit("name", el.name());
}
av0.visit("nillable", el.nillable());
av0.visit("required", el.required());
av0.visit("namespace", el.namespace());
av0.visit("defaultValue", el.defaultValue());
if (el.type() != XmlElement.DEFAULT.class) {
av0.visit("type", el.type());
}
av0.visitEnd();
} else if (ann instanceof XmlElementWrapper) {
XmlElementWrapper el = (XmlElementWrapper)ann;
av0 = fv.visitAnnotation("Ljavax/xml/bind/annotation/XmlElementWrapper;", true);
av0.visit("name", el.name());
av0.visit("nillable", el.nillable());
av0.visit("required", el.required());
av0.visit("namespace", el.namespace());
av0.visitEnd();
}
}
return addedEl;
}
}
