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package com.sun.enterprise.webservice;
import java.lang.reflect.Method;
import java.lang.reflect.Modifier;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.io.IOException;
import java.util.List;
import java.util.ArrayList;
import java.util.LinkedList;
import java.util.logging.Logger;
import javax.jws.WebMethod;
import com.sun.ejb.codegen.Generator;
import com.sun.ejb.codegen.GeneratorException;
import sun.rmi.rmic.IndentingWriter;
import static java.lang.reflect.Modifier.*;
import static com.sun.corba.ee.spi.codegen.Wrapper.*;
import com.sun.corba.ee.spi.codegen.Type;
import com.sun.corba.ee.impl.codegen.ClassGenerator;
import com.sun.ejb.codegen.ClassGeneratorFactory;
import com.sun.enterprise.util.LocalStringManagerImpl;
import com.sun.logging.LogDomains;
/**
* This class is responsible for generating the SEI when it is not packaged
* by the application.
*
* @author Jerome Dochez
*/
public class ServiceInterfaceGenerator extends Generator
implements ClassGeneratorFactory {
private static LocalStringManagerImpl localStrings =
new LocalStringManagerImpl(ServiceInterfaceGenerator.class);
private static Logger _logger=null;
static{
_logger=LogDomains.getLogger(LogDomains.DPL_LOGGER);
}
Class sib=null;
String serviceIntfName;
String packageName;
String serviceIntfSimpleName;
Method[] intfMethods;
/**
* Construct the Wrapper generator with the specified deployment
* descriptor and class loader.
* @exception GeneratorException.
*/
public ServiceInterfaceGenerator(ClassLoader cl, Class sib)
throws GeneratorException, ClassNotFoundException
{
super();
this.sib = sib;
serviceIntfSimpleName = getServiceIntfName();
packageName = getPackageName();
serviceIntfName = packageName + "." + serviceIntfSimpleName;
intfMethods = calculateMethods(sib, removeDups(sib.getMethods()));
// NOTE : no need to remove ejb object methods because EJBObject
// is only visible through the RemoteHome view.
}
public String getServiceIntfName() {
String serviceIntfSimpleName = sib.getSimpleName();
if (serviceIntfSimpleName.endsWith("EJB")) {
return serviceIntfSimpleName.substring(0, serviceIntfSimpleName.length()-3);
} else {
return serviceIntfSimpleName+"SEI";
}
}
public String getPackageName() {
return sib.getPackage().getName()+".internal.jaxws";
}
/**
* Get the fully qualified name of the generated class.
* Note: the remote/local implementation class is in the same package
* as the bean class, NOT the remote/local interface.
* @return the name of the generated class.
*/
public String getGeneratedClass() {
return serviceIntfName;
}
// For corba codegen infrastructure
public String className() {
return getGeneratedClass();
}
private Method[] calculateMethods(Class sib, Method[] initialList) {
// we start by assuming the @WebMethod was NOT used on this class
boolean webMethodAnnotationUsed = false;
List<Method> list = new ArrayList<Method>();
for (Method m : initialList) {
WebMethod wm = m.getAnnotation(javax.jws.WebMethod.class);
if (wm!=null && webMethodAnnotationUsed==false) {
webMethodAnnotationUsed=true;
// reset the list, this is the first annotated method we find
list.clear();
}
if (wm!=null) {
list.add(m);
} else {
if (!webMethodAnnotationUsed && !m.getDeclaringClass().equals(java.lang.Object.class)) {
list.add(m);
}
}
}
return list.toArray(new Method[0]);
}
public ClassGenerator evaluate() {
_clear();
if (packageName != null) {
_package(packageName);
}
_interface(PUBLIC, serviceIntfName);
for(int i = 0; i < intfMethods.length; i++) {
printMethod(intfMethods[i]);
}
_end();
return _classGenerator() ;
}
/**
* Generate the code to the specified output stream.
* @param the output stream
* @exception GeneratorException on a generation error
* @exception IOException on an IO error
*/
public void generate(OutputStream out)
throws GeneratorException, IOException
{
IndentingWriter p = new IndentingWriter(new OutputStreamWriter(out));
p.pln("");
if (packageName != null) {
p.pln("package " + packageName + ";");
}
p.pln("");
p.plnI("public interface " + serviceIntfSimpleName + " {");
p.pln("");
// each remote method
for(int i = 0; i < intfMethods.length; i++) {
printMethod(p, intfMethods[i]);
}
p.pOln("}");
p.close();
}
private void printMethod(Method m)
{
boolean throwsRemoteException = false;
List<Type> exceptionList = new LinkedList<Type>();
for(Class exception : m.getExceptionTypes()) {
exceptionList.add(Type.type(exception));
if( exception.getName().equals("java.rmi.RemoteException") ) {
throwsRemoteException = true;
}
}
if( !throwsRemoteException ) {
exceptionList.add(_t("java.rmi.RemoteException"));
}
_method( PUBLIC | ABSTRACT, Type.type(m.getReturnType()),
m.getName(), exceptionList);
int i = 0;
com.sun.corba.ee.spi.codegen.Expression expr = null;
for(Class param : m.getParameterTypes()) {
expr = _arg(Type.type(param), "param" + i);
i++;
}
_end();
}
/**
* Generate the code for a single method.
* @param the writer.
* @param the method to generate code for.
* @exception IOException.
*/
private void printMethod(IndentingWriter p, Method m)
throws IOException
{
p.pln("");
// print method signature and exceptions
p.p("public " + printType(m.getReturnType()) + " "
+ m.getName() + "(");
Class[] params = m.getParameterTypes();
for(int i = 0; i < params.length; i++) {
if (i != 0)
p.p(", ");
p.p(printType(params[i]) + " param" + i);
}
p.p(") ");
Class[] exceptions = m.getExceptionTypes();
boolean throwsRemoteException = false;
for(int i = 0; i < exceptions.length; i++) {
if (i == 0)
p.p("throws ");
else
p.p(", ");
String nextEx = exceptions[i].getName();
p.p(nextEx);
if( nextEx.equals("java.rmi.RemoteException") ) {
throwsRemoteException = true;
}
}
if( exceptions.length == 0 ) {
p.p("throws java.rmi.RemoteException");
} else if (!throwsRemoteException) {
p.p(", java.rmi.RemoteException");
}
p.pln(";");
p.pln("");
}
}