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Merge duplicate code.

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Original committer: pedemont%us.ibm.com
Original revision: 1.19
Original date: 2005/01/20 22:07:26
This commit is contained in:
pedemont%us.ibm.com 2006-09-27 15:18:06 +00:00
parent 5d8665a585
commit 9274768109
2 changed files with 79 additions and 90 deletions
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148
extensions/java/xpcom/src/nsJavaWrapper.cpp
View File

@ -669,39 +669,16 @@ FinalizeParams(JNIEnv *env, const jobject aParam,
if (aParamInfo.IsOut() && aParam) { // 'inout' & 'out'
jobject java_obj = nsnull;
if (xpcom_obj) {
// Find matching Java object for given xpcom object
java_obj = gBindings->GetJavaObject(env, xpcom_obj);
nsID iid;
rv = GetIIDForMethodParam(aIInfo, aMethodInfo, aParamInfo,
aMethodIndex, aDispatchParams, PR_TRUE, iid);
if (NS_FAILED(rv))
break;
// If no matching Java object exists, create one
if (java_obj == nsnull) {
// wrap xpcom instance
nsID iid;
JavaXPCOMInstance* inst;
rv = GetIIDForMethodParam(aIInfo, aMethodInfo, aParamInfo,
aMethodIndex, aDispatchParams,
PR_TRUE, iid);
if (NS_FAILED(rv))
return rv;
nsISupports* variant;
variant = NS_REINTERPRET_CAST(nsISupports*, xpcom_obj);
rv = CreateJavaXPCOMInstance(variant, &iid, &inst);
if (NS_FAILED(rv))
break;
NS_RELEASE(variant); // JavaXPCOMInstance has owning ref
// create java stub
char* iface_name;
rv = inst->InterfaceInfo()->GetName(&iface_name);
if (NS_FAILED(rv))
break;
java_obj = CreateJavaWrapper(env, iface_name);
if (java_obj) {
// Associate XPCOM object w/ Java stub
gBindings->AddBinding(env, java_obj, inst);
}
}
// Get matching Java object for given xpcom object
rv = gBindings->GetJavaObject(env, xpcom_obj, iid, PR_TRUE, &java_obj);
if (NS_FAILED(rv))
break;
}
// put new Java object into output array
@ -889,33 +866,18 @@ SetRetval(JNIEnv *env, const nsXPTParamInfo &aParamInfo,
case nsXPTType::T_INTERFACE_IS:
{
if (aVariant.val.p) {
jobject java_obj = gBindings->GetJavaObject(env, aVariant.val.p);
nsID iid;
rv = GetIIDForMethodParam(aIInfo, aMethodInfo, aParamInfo, aMethodIndex,
aDispatchParams, PR_TRUE, iid);
if (NS_FAILED(rv))
break;
if (java_obj == nsnull) {
nsID iid;
JavaXPCOMInstance* inst;
rv = GetIIDForMethodParam(aIInfo, aMethodInfo, aParamInfo,
aMethodIndex, aDispatchParams, PR_TRUE, iid);
if (NS_FAILED(rv))
return rv;
nsISupports* variant;
variant = NS_REINTERPRET_CAST(nsISupports*, aVariant.val.p);
rv = CreateJavaXPCOMInstance(variant, &iid, &inst);
if (NS_FAILED(rv))
break;
NS_RELEASE(variant); // JavaXPCOMInstance has owning ref
// create java stub
char* iface_name;
rv = inst->InterfaceInfo()->GetName(&iface_name);
if (NS_FAILED(rv))
break;
java_obj = CreateJavaWrapper(env, iface_name);
if (java_obj)
gBindings->AddBinding(env, java_obj, inst);
}
// Get matching Java object for given xpcom object
jobject java_obj;
rv = gBindings->GetJavaObject(env, aVariant.val.p, iid, PR_TRUE,
&java_obj);
if (NS_FAILED(rv))
break;
// If returned object is an nsJavaXPTCStub, release it.
nsISupports* xpcom_obj = NS_STATIC_CAST(nsISupports*, aVariant.val.p);
@ -1132,27 +1094,67 @@ CallXPCOMMethod(JNIEnv *env, jclass that, jobject aJavaObject,
return;
}
jobject
CreateJavaWrapper(JNIEnv* env, const char* aClassName)
nsresult
CreateJavaProxy(JNIEnv* env, nsISupports* aXPCOMObject, const nsIID& aIID,
jobject* aResult)
{
jobject java_stub = nsnull;
NS_PRECONDITION(aResult != nsnull, "null ptr");
if (!aResult)
return NS_ERROR_NULL_POINTER;
// Create stub class name
nsCAutoString class_name("org/mozilla/xpcom/stubs/");
class_name.AppendASCII(aClassName);
class_name.AppendLiteral("_Stub");
jobject java_obj = nsnull;
// Create Java stub for XPCOM object
jclass clazz;
clazz = env->FindClass(class_name.get());
nsCOMPtr<nsIInterfaceInfoManager> iim = XPTI_GetInterfaceInfoManager();
NS_ASSERTION(iim != nsnull, "Failed to get InterfaceInfoManager");
if (!iim)
return NS_ERROR_FAILURE;
if (clazz) {
jmethodID constructor = env->GetMethodID(clazz, "<init>", "()V");
if (constructor) {
java_stub = env->NewObject(clazz, constructor);
// Get interface info for class
nsCOMPtr<nsIInterfaceInfo> info;
nsresult rv = iim->GetInfoForIID(&aIID, getter_AddRefs(info));
if (NS_FAILED(rv))
return rv;
// Wrap XPCOM object
JavaXPCOMInstance* inst = new JavaXPCOMInstance(aXPCOMObject, info);
if (!inst)
return NS_ERROR_OUT_OF_MEMORY;
// Get interface name
char* iface_name;
rv = info->GetName(&iface_name);
if (NS_SUCCEEDED(rv)) {
// Create proxy class name
nsCAutoString class_name("org/mozilla/xpcom/stubs/");
class_name.AppendASCII(iface_name);
class_name.AppendLiteral("_Stub");
nsMemory::Free(iface_name);
// Create java proxy object
jclass clazz;
clazz = env->FindClass(class_name.get());
if (clazz) {
jmethodID constructor = env->GetMethodID(clazz, "<init>", "()V");
if (constructor) {
java_obj = env->NewObject(clazz, constructor);
}
}
if (java_obj) {
// Associate XPCOM object with Java proxy
rv = gBindings->AddBinding(env, java_obj, inst);
if (NS_SUCCEEDED(rv)) {
*aResult = java_obj;
return NS_OK;
}
} else {
rv = NS_ERROR_FAILURE;
}
}
return java_stub;
// If there was an error, clean up.
delete inst;
return rv;
}

21
extensions/java/xpcom/src/nsJavaXPCOMBindingUtils.h
View File

@ -103,20 +103,6 @@ private:
nsCOMPtr<nsIInterfaceInfo> mIInfo;
};
/**
* Creates a new JavaXPCOMInstance which holds the xpcom object and its
* interface info based on the given IID.
*
* @param aXPCOMObject xpcom object to wrap
* @param aIID interface IID for aXPCOMObject
* @param aResult pointer that will hold new JavaXPCOMInstance
*
* @return NS_ERROR_OUT_OF_MEMORY if out of memory;
* NS_ERROR_FAILURE for any other error condition
*/
nsresult CreateJavaXPCOMInstance(nsISupports* aXPCOMObject, const nsIID* aIID,
JavaXPCOMInstance** aResult);
/**************************************
* Java<->XPCOM binding stores
@ -145,9 +131,10 @@ public:
// Given a Java object, returns the associated XPCOM object.
void* GetXPCOMObject(JNIEnv* env, jobject aJavaObject);
// Given an XPCOM object, returns the associated Java Object.
jobject GetJavaObject(JNIEnv* env, void* aXPCOMObject);
// Given an XPCOM object, returns the associated Java Object. If a Java
// object doesn't exist, then create a Java proxy for the XPCOM object.
NS_IMETHOD GetJavaObject(JNIEnv* env, void* aXPCOMObject, const nsIID& aIID,
PRBool aDoReleaseObject, jobject* aResult);
private:
PLDHashTable* mJAVAtoXPCOMBindings;
PLDHashTable* mXPCOMtoJAVABindings;