Files
jlibcom/jni/EventProxy.cpp
clay_shooter 43dce6d42f Generated basic javadoc for most methods. Still need some help here
Reformatteda all source using eclipse
eliminated parameters with same names as method variagles
repackaged all tests so that their package names match the directories they are in
merged in Jiffie and Variant EventProxy changes
2005-01-08 17:02:55 +00:00

824 lines
15 KiB
C++

/*
* Copyright (c) 1999-2004 Sourceforge JACOB Project.
* All rights reserved. Originator: Dan Adler (http://danadler.com).
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Redistributions in any form must be accompanied by information on
* how to obtain complete source code for the JACOB software.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "EventProxy.h"
// hook myself up as a listener for delegate
EventProxy::EventProxy(JNIEnv *env, jobject aSinkObj,
CComPtr<IConnectionPoint> pConn,
IID eid, CComBSTR mName[], DISPID mID[], int mNum) :
m_cRef(0), pCP(pConn),
eventIID(eid), MethNum(mNum), MethName(mName),
MethID(mID), JMethID(NULL), javaSinkClass(NULL),
variantClassMethod(NULL)
{
javaSinkObj = env->NewGlobalRef(aSinkObj);
if (env->ExceptionOccurred()) { env->ExceptionDescribe();}
// we need this to attach to the event invocation thread
env->GetJavaVM(&jvm);
if (env->ExceptionOccurred()) { env->ExceptionDescribe(); }
AddRef();
HRESULT hr = pCP->Advise(this, &dwEventCookie);
if (SUCCEEDED(hr)) {
// create a mapping from the DISPID's to jmethodID's by using
// the method names I extracted from the classinfo
JMethID = new jmethodID[MethNum];
javaSinkClass = env->GetObjectClass(javaSinkObj);
if (javaSinkClass == NULL){ printf("can't figure out java sink class"); }
if (env->ExceptionOccurred()) { env->ExceptionDescribe(); }
variantClassMethod = env->GetMethodID(javaSinkClass, "getVariantClass", "()Ljava/lang/Class;");
if (env->ExceptionOccurred()) { env->ExceptionDescribe(); }
if (variantClassMethod == NULL) { printf("variantClassMethod == null\n"); }
const char *method;
for(int i=0;i<MethNum;i++)
{
// look for a method with the specified name, that takes an
// array of variants and return void
USES_CONVERSION;
method = W2A((OLECHAR *)MethName[i]);
JMethID[i] = env->GetMethodID(javaSinkClass, method, "([Lcom/jacob/com/Variant;)V");
// need to clear exceptions because GetMethodID above may fail
// if the user didn't implement all the methods
env->ExceptionClear();
}
} else {
ThrowComFail(env, "Advise failed", hr);
}
}
// unhook myself up as a listener and get rid of delegate
EventProxy::~EventProxy()
{
pCP->Unadvise(dwEventCookie);
JNIEnv *env;
// attach to the current running thread
jvm->AttachCurrentThread((void **)&env, jvm);
env->DeleteGlobalRef(javaSinkObj);
if (env->ExceptionOccurred()) { env->ExceptionDescribe(); }
if (MethNum) {
delete [] MethName;
delete [] MethID;
if (JMethID) delete [] JMethID;
}
// detach from thread
jvm->DetachCurrentThread();
}
// I only support the eventIID interface which was passed in
// by the DispatchEvent wrapper who looked it up as the
// source object's default source interface
STDMETHODIMP EventProxy::QueryInterface(REFIID rid, void **ppv)
{
if (rid == IID_IUnknown || rid == eventIID || rid == IID_IDispatch)
{
*ppv = this;
AddRef();
return S_OK;
}
return E_NOINTERFACE;
}
// This should never get called - the event source fires events
// by dispid's, not by name
STDMETHODIMP EventProxy::GetIDsOfNames(REFIID riid,
OLECHAR **rgszNames, UINT cNames, LCID lcid, DISPID *rgDispID)
{
return E_UNEXPECTED;
}
// The actual callback from the connection point arrives here
STDMETHODIMP EventProxy::Invoke(DISPID dispID, REFIID riid,
LCID lcid, unsigned short wFlags, DISPPARAMS *pDispParams,
VARIANT *pVarResult, EXCEPINFO *pExcepInfo, UINT *puArgErr)
{
HRESULT hr;
jmethodID meth = 0;
JNIEnv *env = NULL;
// map dispID to jmethodID
for(int i=0;i<MethNum;i++)
{
if (MethID[i] == dispID) { meth = JMethID[i]; break; }
}
if (!meth)
{
// user did not implement this method
return S_OK;
}
if (DISPATCH_METHOD & wFlags)
{
// attach to the current running thread
jvm->AttachCurrentThread((void**)&env, jvm);
// get variant class
jclass vClass;
// do this in a JACOB 1.8 backwards compatable way
// this succeeds if the class was loaded from the bootstrap class loader
vClass = env->FindClass("com/jacob/com/Variant");
if (vClass == NULL){
// see if our call back class implements our "special" method
if (variantClassMethod != NULL){
jobject variantFound = env->CallObjectMethod(javaSinkObj, variantClassMethod);
if (env->ExceptionOccurred()) { env->ExceptionDescribe(); }
if (variantFound == NULL) { printf("variantFound == null\n"); }
vClass = (jclass)variantFound;
} else {
// dang they didn't. lets tell the user they are having a bad day
printf("We're going to fail now in a way that is probably pretty ugly");
printf("This application is probably running from a launcher where system class loader knows not Jacob\n");
printf("The call back class does not implement 'Class getVariantClass()' that we can use to work around this\n");
}
}
// how many params
int num = pDispParams->cArgs;
// and the constructor
jmethodID vCons = env->GetMethodID(vClass, "<init>", "()V");
if (env->ExceptionOccurred()) { env->ExceptionDescribe(); }
// make an array of them
jobjectArray varr = env->NewObjectArray(num, vClass, 0);
if (env->ExceptionOccurred()) { env->ExceptionDescribe(); }
int i,j;
for(i=num-1,j=0;i>=0;i--,j++)
{
// construct a java variant holder
jobject arg = env->NewObject(vClass, vCons);
if (env->ExceptionOccurred()) { env->ExceptionDescribe(); }
// get the empty variant from it
VARIANT *va = extractVariant(env, arg);
// copy the value
VariantCopy(va, &pDispParams->rgvarg[i]);
// put it in the array
env->SetObjectArrayElement(varr, j, arg);
env->DeleteLocalRef(arg);
if (env->ExceptionOccurred()) { env->ExceptionDescribe(); }
}
// call the method
env->CallVoidMethod(javaSinkObj, meth, varr);
if (env->ExceptionOccurred()) { env->ExceptionDescribe(); }
// Begin code from Jiffie team that copies parameters back from java to COM
for(i=num-1,j=0;i>=0;i--,j++)
{
jobject arg = env->GetObjectArrayElement(varr, j);
VARIANT *java = extractVariant(env, arg);
VARIANT *com = &pDispParams->rgvarg[i];
switch (com->vt)
{
case VT_DISPATCH:
{
switch (java->vt)
{
case VT_DISPATCH:
{
V_DISPATCH(com) = V_DISPATCH(java);
break;
}
case VT_DISPATCH | VT_BYREF:
{
V_DISPATCH(com) = *V_DISPATCHREF(java);
break;
}
}
break;
}
case VT_DISPATCH | VT_BYREF:
{
switch (java->vt)
{
case VT_DISPATCH:
{
*V_DISPATCHREF(com) = V_DISPATCH(java);
break;
}
case VT_DISPATCH | VT_BYREF:
{
*V_DISPATCHREF(com) = *V_DISPATCHREF(java);
break;
}
}
break;
}
case VT_BOOL:
{
switch (java->vt)
{
case VT_BOOL:
{
V_BOOL(com) = V_BOOL(java);
break;
}
case VT_BOOL | VT_BYREF:
{
V_BOOL(com) = *V_BOOLREF(java);
break;
}
}
break;
}
case VT_BOOL | VT_BYREF:
{
switch (java->vt)
{
case VT_BOOL:
{
*V_BOOLREF(com) = V_BOOL(java);
break;
}
case VT_BOOL | VT_BYREF:
{
*V_BOOLREF(com) = *V_BOOLREF(java);
break;
}
}
break;
}
case VT_UI1:
{
switch (java->vt)
{
case VT_UI1:
{
V_UI1(com) = V_UI1(java);
break;
}
case VT_UI1 | VT_BYREF:
{
V_UI1(com) = *V_UI1REF(java);
break;
}
}
break;
}
case VT_UI1 | VT_BYREF:
{
switch (java->vt)
{
case VT_UI1:
{
*V_UI1REF(com) = V_UI1(java);
break;
}
case VT_UI1 | VT_BYREF:
{
*V_UI1REF(com) = *V_UI1REF(java);
break;
}
}
break;
}
case VT_I2:
{
switch (java->vt)
{
case VT_I2:
{
V_I2(com) = V_I2(java);
break;
}
case VT_I2 | VT_BYREF:
{
V_I2(com) = *V_I2REF(java);
break;
}
}
break;
}
case VT_I2 | VT_BYREF:
{
switch (java->vt)
{
case VT_I2:
{
*V_I2REF(com) = V_I2(java);
break;
}
case VT_I2 | VT_BYREF:
{
*V_I2REF(com) = *V_I2REF(java);
break;
}
}
break;
}
case VT_I4:
{
switch (java->vt)
{
case VT_I4:
{
V_I4(com) = V_I4(java);
break;
}
case VT_I4 | VT_BYREF:
{
V_I4(com) = *V_I4REF(java);
break;
}
}
break;
}
case VT_I4 | VT_BYREF:
{
switch (java->vt)
{
case VT_I4:
{
*V_I4REF(com) = V_I4(java);
break;
}
case VT_I4 | VT_BYREF:
{
*V_I4REF(com) = *V_I4REF(java);
break;
}
}
break;
}
case VT_R4:
{
switch (java->vt)
{
case VT_R4:
{
V_R4(com) = V_R4(java);
break;
}
case VT_R4 | VT_BYREF:
{
V_R4(com) = *V_R4REF(java);
break;
}
}
break;
}
case VT_R4 | VT_BYREF:
{
switch (java->vt)
{
case VT_R4:
{
*V_R4REF(com) = V_R4(java);
break;
}
case VT_R4 | VT_BYREF:
{
*V_R4REF(com) = *V_R4REF(java);
break;
}
}
break;
}
case VT_R8:
{
switch (java->vt)
{
case VT_R8:
{
V_R8(com) = V_R8(java);
break;
}
case VT_R8 | VT_BYREF:
{
V_R8(com) = *V_R8REF(java);
break;
}
}
break;
}
case VT_R8 | VT_BYREF:
{
switch (java->vt)
{
case VT_R8:
{
*V_R8REF(com) = V_R8(java);
break;
}
case VT_R8 | VT_BYREF:
{
*V_R8REF(com) = *V_R8REF(java);
break;
}
}
break;
}
case VT_I1:
{
switch (java->vt)
{
case VT_I1:
{
V_I1(com) = V_I1(java);
break;
}
case VT_I1 | VT_BYREF:
{
V_I1(com) = *V_I1REF(java);
break;
}
}
break;
}
case VT_I1 | VT_BYREF:
{
switch (java->vt)
{
case VT_I1:
{
*V_I1REF(com) = V_I1(java);
break;
}
case VT_I1 | VT_BYREF:
{
*V_I1REF(com) = *V_I1REF(java);
break;
}
}
break;
}
case VT_UI2:
{
switch (java->vt)
{
case VT_UI2:
{
V_UI2(com) = V_UI2(java);
break;
}
case VT_UI2 | VT_BYREF:
{
V_UI2(com) = *V_UI2REF(java);
break;
}
}
break;
}
case VT_UI2 | VT_BYREF:
{
switch (java->vt)
{
case VT_UI2:
{
*V_UI2REF(com) = V_UI2(java);
break;
}
case VT_UI2 | VT_BYREF:
{
*V_UI2REF(com) = *V_UI2REF(java);
break;
}
}
break;
}
case VT_UI4:
{
switch (java->vt)
{
case VT_UI4:
{
V_UI4(com) = V_UI4(java);
break;
}
case VT_UI4 | VT_BYREF:
{
V_UI4(com) = *V_UI4REF(java);
break;
}
}
break;
}
case VT_UI4 | VT_BYREF:
{
switch (java->vt)
{
case VT_UI4:
{
*V_UI4REF(com) = V_UI4(java);
break;
}
case VT_UI4 | VT_BYREF:
{
*V_UI4REF(com) = *V_UI4REF(java);
break;
}
}
break;
}
case VT_INT:
{
switch (java->vt)
{
case VT_INT:
{
V_INT(com) = V_INT(java);
break;
}
case VT_INT | VT_BYREF:
{
V_INT(com) = *V_INTREF(java);
break;
}
}
break;
}
case VT_INT | VT_BYREF:
{
switch (java->vt)
{
case VT_INT:
{
*V_INTREF(com) = V_INT(java);
break;
}
case VT_INT | VT_BYREF:
{
*V_INTREF(com) = *V_INTREF(java);
break;
}
}
break;
}
case VT_UINT:
{
switch (java->vt)
{
case VT_UINT:
{
V_UINT(com) = V_UINT(java);
break;
}
case VT_UINT | VT_BYREF:
{
V_UINT(com) = *V_UINTREF(java);
break;
}
}
break;
}
case VT_UINT | VT_BYREF:
{
switch (java->vt)
{
case VT_UINT:
{
*V_UINTREF(com) = V_UINT(java);
break;
}
case VT_UINT | VT_BYREF:
{
*V_UINTREF(com) = *V_UINTREF(java);
break;
}
}
break;
}
case VT_CY:
{
switch (java->vt)
{
case VT_CY:
{
V_CY(com) = V_CY(java);
break;
}
case VT_CY | VT_BYREF:
{
V_CY(com) = *V_CYREF(java);
break;
}
}
break;
}
case VT_CY | VT_BYREF:
{
switch (java->vt)
{
case VT_CY:
{
*V_CYREF(com) = V_CY(java);
break;
}
case VT_CY | VT_BYREF:
{
*V_CYREF(com) = *V_CYREF(java);
break;
}
}
break;
}
case VT_DATE:
{
switch (java->vt)
{
case VT_DATE:
{
V_DATE(com) = V_DATE(java);
break;
}
case VT_DATE | VT_BYREF:
{
V_DATE(com) = *V_DATEREF(java);
break;
}
}
break;
}
case VT_DATE | VT_BYREF:
{
switch (java->vt)
{
case VT_DATE:
{
*V_DATEREF(com) = V_DATE(java);
break;
}
case VT_DATE | VT_BYREF:
{
*V_DATEREF(com) = *V_DATEREF(java);
break;
}
}
break;
}
case VT_BSTR:
{
switch (java->vt)
{
case VT_BSTR:
{
V_BSTR(com) = V_BSTR(java);
break;
}
case VT_BSTR | VT_BYREF:
{
V_BSTR(com) = *V_BSTRREF(java);
break;
}
}
break;
}
case VT_BSTR | VT_BYREF:
{
switch (java->vt)
{
case VT_BSTR:
{
*V_BSTRREF(com) = V_BSTR(java);
break;
}
case VT_BSTR | VT_BYREF:
{
*V_BSTRREF(com) = *V_BSTRREF(java);
break;
}
}
break;
}
case VT_DECIMAL:
{
switch (java->vt)
{
case VT_DECIMAL:
{
V_DECIMAL(com) = V_DECIMAL(java);
break;
}
case VT_DECIMAL | VT_BYREF:
{
V_DECIMAL(com) = *V_DECIMALREF(java);
break;
}
}
break;
}
case VT_DECIMAL | VT_BYREF:
{
switch (java->vt)
{
case VT_DECIMAL:
{
*V_DECIMALREF(com) = V_DECIMAL(java);
break;
}
case VT_DECIMAL | VT_BYREF:
{
*V_DECIMALREF(com) = *V_DECIMALREF(java);
break;
}
}
break;
}
}
env->DeleteLocalRef(arg);
}
// End code from Jiffie team that copies parameters back from java to COM
// detach from thread
jvm->DetachCurrentThread();
return S_OK;
}
return E_NOINTERFACE;
}