/*
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*
* Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
*
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* and Distribution License("CDDL") (collectively, the "License"). You
* may not use this file except in compliance with the License. You can obtain
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* or glassfish/bootstrap/legal/LICENSE.txt. See the License for the specific
* language governing permissions and limitations under the License.
*
* When distributing the software, include this License Header Notice in each
* file and include the License file at glassfish/bootstrap/legal/LICENSE.txt.
* Sun designates this particular file as subject to the "Classpath" exception
* as provided by Sun in the GPL Version 2 section of the License file that
* accompanied this code. If applicable, add the following below the License
* Header, with the fields enclosed by brackets [] replaced by your own
* identifying information: "Portions Copyrighted [year]
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*
* If you wish your version of this file to be governed by only the CDDL or
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* elects to include this software in this distribution under the [CDDL or GPL
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*/
package com.sun.ejb.codegen;
import java.lang.reflect.Method;
import java.io.*;
import java.util.*;
import java.util.logging.*;
import com.sun.logging.*;
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.spi.codegen.Expression;
import com.sun.corba.ee.impl.codegen.ClassGenerator;
import javax.ejb.EnterpriseBean;
import javax.ejb.SessionBean;
import javax.ejb.EntityBean;
import com.sun.ejb.EJBUtils;
import com.sun.ejb.containers.InternalEJBContainerException;
import com.sun.enterprise.deployment.*;
import com.sun.enterprise.util.JarClassLoader;
import com.sun.enterprise.util.LocalStringManagerImpl;
/**
*
*/
public class Remote30WrapperGenerator extends Generator
implements ClassGeneratorFactory {
private static LocalStringManagerImpl localStrings =
new LocalStringManagerImpl(WrapperGenerator.class);
private static Logger _logger=null;
static{
_logger=LogDomains.getLogger(LogDomains.DPL_LOGGER);
}
private String remoteInterfaceName;
private Class businessInterface;
private String remoteClientClassName;
private String remoteClientPackageName;
private String remoteClientSimpleName;
private Method[] bizMethods;
private ClassLoader loader;
public String getGeneratedClass() {
return remoteClientClassName;
}
// For corba codegen infrastructure
public String className() {
return getGeneratedClass();
}
/**
* Construct the Wrapper generator with the specified deployment
* descriptor and class loader.
* @exception GeneratorException.
*/
public Remote30WrapperGenerator
(ClassLoader cl, String businessIntfName, String remoteIntfName)
throws GeneratorException
{
super();
remoteInterfaceName = remoteIntfName;
loader = cl;
try {
this.businessInterface = cl.loadClass(businessIntfName);
} catch (ClassNotFoundException ex) {
throw new InvalidBean(
localStrings.getLocalString(
"generator.remote_interface_not_found",
"Business interface " + businessInterface + " not found "));
}
if( javax.ejb.EJBObject.class.isAssignableFrom(businessInterface) ) {
throw new GeneratorException("Invalid Remote Business Interface " +
businessInterface + ". A Remote Business interface MUST " +
"not extend javax.ejb.EJBObject.");
}
remoteClientClassName = EJBUtils.
getGeneratedRemoteWrapperName(businessInterface.getName());
remoteClientPackageName = getPackageName(remoteClientClassName);
remoteClientSimpleName = getBaseName(remoteClientClassName);
bizMethods = removeDups(businessInterface.getMethods());
// NOTE : no need to remove ejb object methods because EJBObject
// is only visible through the RemoteHome view.
}
public ClassGenerator evaluate() {
_clear();
if (remoteClientPackageName != null) {
_package(remoteClientPackageName);
} else {
// no-arg _package() call is required for default package
_package();
}
_class(PUBLIC, remoteClientSimpleName,
_t("com.sun.ejb.containers.RemoteBusinessWrapperBase"),
_t(businessInterface.getName()));
_data(PRIVATE, _t(remoteInterfaceName), "delegate_");
_constructor( PUBLIC ) ;
_arg(_t(remoteInterfaceName), "stub");
_arg(_String(), "busIntf");
_body();
_expr(_super(_s(_void(), _t("java.rmi.Remote"), _String()),
_v("stub"), _v("busIntf"))) ;
_assign(_v("delegate_"), _v("stub"));
_end();
for(int i = 0; i < bizMethods.length; i++) {
printMethodImpl(bizMethods[i]);
}
_end();
/*
System.out.println("Generating byte code for remote30rwappergen");
try {
java.util.Properties p = new java.util.Properties();
p.put("Wrapper.DUMP_AFTER_SETUP_VISITOR", "true");
p.put("Wrapper.TRACE_BYTE_CODE_GENERATION", "true");
p.put("Wrapper.USE_ASM_VERIFIER", "true");
_byteCode(loader, null, p);
} catch(Exception e) {
System.out.println("Got exception when generating byte code");
e.printStackTrace();
}
*/
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));
if (remoteClientPackageName != null) {
p.pln("package " + remoteClientPackageName + ";");
}
p.plnI("public final class " + remoteClientSimpleName +
" extends com.sun.ejb.containers.RemoteBusinessWrapperBase" +
" implements " + businessInterface.getName() + " {");
p.pln("");
p.pln("private " + remoteInterfaceName + " delegate_;");
p.pln("");
// this is the constructor
p.plnI("public " + remoteClientSimpleName + "(" +
remoteInterfaceName + " stub" + " , " +
"java.lang.String busIntf" + ")" + " {");
p.pln("super(stub, busIntf);");
p.pln("");
p.pln("delegate_ = stub;");
p.pOln("}");
p.pln("");
// each remote method
for(int i = 0; i < bizMethods.length; i++) {
printMethodImpl(p, bizMethods[i]);
}
p.pOln("}");
p.close();
}
private void printMethodImpl(Method m)
{
List<Type> exceptionList = new LinkedList<Type>();
for(Class exception : m.getExceptionTypes()) {
exceptionList.add(Type.type(exception));
}
_method( PUBLIC, Type.type(m.getReturnType()),
m.getName(), exceptionList);
int i = 0;
List<Type> expressionListTypes = new LinkedList<Type>();
List<Expression> expressionList = new LinkedList<Expression>();
for(Class param : m.getParameterTypes()) {
String paramName = "param" + i;
_arg(Type.type(param), paramName);
i++;
expressionListTypes.add(Type.type(param));
expressionList.add(_v(paramName));
}
_body();
_try();
Class returnType = m.getReturnType();
if( returnType == void.class ) {
_expr( _call( _v("delegate_"), m.getName(),
_s(Type.type(returnType), expressionListTypes),
expressionList));
} else {
_return( _call( _v("delegate_"), m.getName(),
_s(Type.type(returnType), expressionListTypes),
expressionList) );
}
boolean doExceptionTranslation =
!java.rmi.Remote.class.isAssignableFrom(businessInterface);
if( doExceptionTranslation ) {
_catch( _t("javax.transaction.TransactionRolledbackException"),
"trex");
_define( _t("java.lang.RuntimeException"), "r",
_new( _t("javax.ejb.EJBTransactionRolledbackException"),
_s(_void())));
_expr( _call( _v("r"), "initCause",
_s(_t("java.lang.Throwable"),
_t("java.lang.Throwable")),
_v("trex")));
_throw(_v("r"));
_catch( _t("javax.transaction.TransactionRequiredException"),
"treqex");
_define( _t("java.lang.RuntimeException"), "r",
_new( _t("javax.ejb.EJBTransactionRequiredException"),
_s(_void())));
_expr( _call( _v("r"), "initCause",
_s(_t("java.lang.Throwable"),
_t("java.lang.Throwable")),
_v("treqex")));
_throw(_v("r"));
_catch( _t("java.rmi.NoSuchObjectException"),
"nsoe");
_define( _t("java.lang.RuntimeException"), "r",
_new( _t("javax.ejb.NoSuchEJBException"),
_s(_void())));
_expr( _call( _v("r"), "initCause",
_s(_t("java.lang.Throwable"),
_t("java.lang.Throwable")),
_v("nsoe")));
_throw(_v("r"));
_catch(_t("com.sun.ejb.containers.InternalEJBContainerException"),
"iejbcEx");
// There's only one kind of InternalEJBContainerException, so
// we know it's a ParallelAccessException
_define(_t("com.sun.ejb.containers.ParallelAccessException"),
"paEx",
_cast(_t("com.sun.ejb.containers.ParallelAccessException"),
_v("iejbcEx")));
_define(_t("javax.ejb.ConcurrentAccessException"), "r", _new(
_t("javax.ejb.ConcurrentAccessException"), _s(_void())));
_expr(_call(_v("r"), "initCause", _s(_t("java.lang.Throwable"),
_t("java.lang.Throwable")), _v("paEx")));
_throw(_v("r"));
_catch( _t("java.rmi.RemoteException"), "re");
_throw( _new( _t("javax.ejb.EJBException"),
_s(_void(), _t("java.lang.Exception")),
_v("re")));
_catch( _t("org.omg.CORBA.SystemException"), "corbaSysEx");
_define( _t("java.lang.RuntimeException"), "r",
_new( _t("javax.ejb.EJBException"),
_s(_void())));
_expr( _call( _v("r"), "initCause",
_s(_t("java.lang.Throwable"),
_t("java.lang.Throwable")),
_v("corbaSysEx")));
_throw(_v("r"));
_end();
} else {
_catch(_t("com.sun.ejb.containers.InternalEJBContainerException"), "iejbcEx");
_throw( _new( _t("com.sun.ejb.containers.InternalRemoteException"),
_s(_void(), _t("com.sun.ejb.containers.InternalEJBContainerException")),
_v("iejbcEx")));
_end();
}
_end();
}
/**
* Generate the code for a single method.
* @param the writer.
* @param the method to generate code for.
* @exception IOException.
*/
private void printMethodImpl(IndentingWriter p, Method m)
throws IOException
{
// 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();
for(int i = 0; i < exceptions.length; i++) {
if (i == 0)
p.p("throws ");
else
p.p(", ");
p.p(exceptions[i].getName());
}
p.plnI("{");
if( !java.rmi.Remote.class.isAssignableFrom(businessInterface) ) {
p.pln("try {");
}
if (m.getReturnType() != void.class) {
p.p(" return ");
}
// print code for calling biz method on bean class
p.p(" delegate_." + m.getName() + "(");
for(int i = 0; i < params.length; i++) {
if( i != 0 ) {
p.p(" , ");
}
p.p("param" + i);
}
p.pln(");");
if( !java.rmi.Remote.class.isAssignableFrom(businessInterface) ) {
p.pln("} catch(javax.transaction.TransactionRolledbackException trex) {");
p.pln("\tjava.lang.RuntimeException r = new javax.ejb.EJBTransactionRolledbackException();");
p.pln("\tr.initCause(trex);");
p.pln("\tthrow r;");
p.pln("} catch(java.rmi.NoSuchObjectException nsoe) {");
p.pln("\tjava.lang.RuntimeException r = new javax.ejb.NoSuchEJBException();");
p.pln("\tr.initCause(nsoe);");
p.pln("\tthrow r;");
p.pln("} catch(javax.transaction.TransactionRequiredException txre) {");
p.pln("\tjava.lang.RuntimeException r = new javax.ejb.EJBTransactionRequiredException();");
p.pln("\tr.initCause(txre);");
p.pln("\tthrow r;");
p.pln("} catch(java.rmi.RemoteException re) {");
p.pln("\tthrow new javax.ejb.EJBException(re);");
p.pln("} ");
}
p.pln("");
p.pOln("} ");
p.pln("");
}
}