author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Fri, 30 Apr 2010 10:40:48 +0300 | |
branch | RCL_3 |
changeset 20 | f9bb0fca356a |
parent 19 | 04becd199f91 |
permissions | -rw-r--r-- |
19
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/* |
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* Copyright (c) 2008 Nokia Corporation and/or its subsidiary(-ies). |
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* All rights reserved. |
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* This component and the accompanying materials are made available |
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* under the terms of "Eclipse Public License v1.0" |
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* which accompanies this distribution, and is available |
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* at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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* |
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* Initial Contributors: |
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* Nokia Corporation - initial contribution. |
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* |
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* Contributors: |
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* |
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* Description: Class for hiding differences between native and java listeners |
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Revision: v2.1.22
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* |
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Revision: v2.1.22
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*/ |
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|
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#include "logger.h" |
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|
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#include "commsmessage.h" |
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#include "listeners.h" |
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|
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namespace java |
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{ |
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namespace comms |
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{ |
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|
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ListenerWrapper::ListenerWrapper(CommsListener* aListener) : mListener(aListener), mObject(0), mMethodID(0) |
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{ |
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} |
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|
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ListenerWrapper::ListenerWrapper(jobject aListener, JNIEnv* aEnv) : mListener(0), mObject(0), mMethodID(0) |
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{ |
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mObject = aEnv->NewGlobalRef(aListener); |
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jclass cls = aEnv->GetObjectClass(aListener); |
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if (cls != NULL) |
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{ |
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mMethodID = aEnv->GetMethodID(cls, "processMessage", "(Lcom/nokia/mj/impl/comms/CommsMessage;)V"); |
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} |
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|
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if (mObject == NULL || mMethodID == NULL) |
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{ |
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ELOG3(EJavaComms, "%s failed, mObject=%d - cls=%d", __PRETTY_FUNCTION__, mObject, mMethodID); |
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} |
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} |
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|
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ListenerWrapper::~ListenerWrapper() |
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{ |
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} |
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|
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void ListenerWrapper::processMessage(CommsMessage& aMessage, JNIEnv* aEnv) |
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{ |
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JELOG2(EJavaComms); |
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if (mListener) |
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{ |
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mListener->processMessage(aMessage); |
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return; |
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} |
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|
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char* buf = aMessage.toByteArray(); |
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int len = (reinterpret_cast<ipcMessage_t*>(buf))->ipcHeader.length; |
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|
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// create bytearray |
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jbyteArray bytes = aEnv->NewByteArray(len); |
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if (bytes!=NULL) |
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{ |
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aEnv->SetByteArrayRegion(bytes, 0, len, (jbyte*)buf); |
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// find CommsMessage java class |
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jclass clazz = aEnv->FindClass("com/nokia/mj/impl/comms/CommsMessage"); |
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if (clazz!=NULL) |
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{ |
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// find CommsMessage java class ctor |
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jmethodID mid = aEnv->GetMethodID(clazz, "<init>", "([B)V"); |
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if (mid!=NULL) |
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{ |
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// create CommsMessage java object |
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jobject messageObj = aEnv->NewObject(clazz, mid, bytes); |
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if (messageObj!=NULL) |
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{ |
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// make callback |
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callVoidJavaMethod(aEnv, mObject, mMethodID, |
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"(Lcom/nokia/mj/impl/comms/CommsMessage;)V", messageObj); |
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// free local references manually as we run in dispatch loop that does not return to VM |
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aEnv->DeleteLocalRef(messageObj); |
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} |
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else |
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{ |
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ELOG(EJavaComms, "NewObject() failed"); |
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} |
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} |
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else |
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{ |
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ELOG(EJavaComms, "GetMethodID() failed"); |
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} |
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aEnv->DeleteLocalRef(clazz); |
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} |
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else |
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{ |
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ELOG(EJavaComms, "FindClass() failed"); |
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} |
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aEnv->DeleteLocalRef(bytes); |
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102 |
} |
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103 |
else |
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104 |
{ |
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ELOG(EJavaComms, "NewByteArray() failed"); |
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106 |
} |
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107 |
} |
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108 |
|
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109 |
void ListenerWrapper::callVoidJavaMethod(JNIEnv* aEnv, jobject aObject, jmethodID aMethodID, const char* aMethodSignature, ...) |
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110 |
{ |
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// make the callback |
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va_list args; |
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va_start(args, aMethodSignature); |
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aEnv->CallVoidMethodV(aObject, aMethodID, args); |
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va_end(args); |
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116 |
|
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// check for pending exception |
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jboolean hasException = aEnv->ExceptionCheck(); |
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if (hasException == JNI_TRUE) |
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120 |
{ |
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// Report any exceptions that were generated and |
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// then clear them from the JNI environment |
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aEnv->ExceptionDescribe(); |
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aEnv->ExceptionClear(); |
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WLOG(EJavaComms, "processMessage() threw exception (in CallVoidMethodV)"); |
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126 |
} |
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127 |
} |
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128 |
|
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CommsListener* ListenerWrapper::getListener() |
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130 |
{ |
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return mListener; |
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132 |
} |
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133 |
|
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void ListenerWrapper::release(JNIEnv* aEnv) |
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135 |
{ |
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// aEnv can be NULL if message loop thread has not attached to VM |
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// (aka no messages have been received) |
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if (aEnv) |
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139 |
{ |
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aEnv->DeleteGlobalRef(mObject); |
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141 |
} |
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142 |
} |
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143 |
|
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144 |
|
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145 |
|
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146 |
|
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} // namespace comms |
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} // namespace java |