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[Android] Use CASE for control (project-chip#8447)
* Use CASE in Android controller * Add GetConnectedDeviceCallback struct and corresponding Java interface/wrapper class.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,39 @@ | ||
| /* | ||
| * | ||
| * Copyright (c) 2021 Project CHIP Authors | ||
| * | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
| #include "AndroidCallbacks.h" | ||
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|
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| #include <jni.h> | ||
| #include <support/CodeUtils.h> | ||
| #include <support/logging/CHIPLogging.h> | ||
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|
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| #define JNI_METHOD(RETURN, CLASS_NAME, METHOD_NAME) \ | ||
| extern "C" JNIEXPORT RETURN JNICALL Java_chip_devicecontroller_##CLASS_NAME##_##METHOD_NAME | ||
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| using namespace chip::Controller; | ||
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| JNI_METHOD(jlong, GetConnectedDeviceCallbackJni, newCallback)(JNIEnv * env, jobject self, jobject callback) | ||
| { | ||
| GetConnectedDeviceCallback * connectedDeviceCallback = new GetConnectedDeviceCallback(callback); | ||
| return reinterpret_cast<jlong>(connectedDeviceCallback); | ||
| } | ||
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| JNI_METHOD(void, GetConnectedDeviceCallbackJni, deleteCallback)(JNIEnv * env, jobject self, jlong callbackHandle) | ||
| { | ||
| GetConnectedDeviceCallback * connectedDeviceCallback = reinterpret_cast<GetConnectedDeviceCallback *>(callbackHandle); | ||
| VerifyOrReturn(connectedDeviceCallback != nullptr, ChipLogError(Controller, "GetConnectedDeviceCallback handle is nullptr")); | ||
| delete connectedDeviceCallback; | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,96 @@ | ||
| /* | ||
| * | ||
| * Copyright (c) 2021 Project CHIP Authors | ||
| * | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
| #include "AndroidCallbacks.h" | ||
| #include "JniReferences.h" | ||
| #include "JniTypeWrappers.h" | ||
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| #include <jni.h> | ||
| #include <support/CodeUtils.h> | ||
| #include <support/ErrorStr.h> | ||
| #include <support/logging/CHIPLogging.h> | ||
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| using namespace chip::Controller; | ||
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| GetConnectedDeviceCallback::GetConnectedDeviceCallback(jobject javaCallback) : | ||
| mOnSuccess(OnDeviceConnectedFn, this), mOnFailure(OnDeviceConnectionFailureFn, this) | ||
| { | ||
| JNIEnv * env = chip::Controller::JniReferences::GetInstance().GetEnvForCurrentThread(); | ||
| VerifyOrReturn(env != nullptr, ChipLogError(Controller, "Could not get JNIEnv for current thread")); | ||
| mJavaCallbackRef = env->NewGlobalRef(javaCallback); | ||
| if (mJavaCallbackRef == nullptr) | ||
| { | ||
| ChipLogError(Controller, "Could not create global reference for Java callback"); | ||
| } | ||
| } | ||
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| GetConnectedDeviceCallback::~GetConnectedDeviceCallback() | ||
| { | ||
| JNIEnv * env = chip::Controller::JniReferences::GetInstance().GetEnvForCurrentThread(); | ||
| VerifyOrReturn(env != nullptr, ChipLogError(Controller, "Could not get JNIEnv for current thread")); | ||
| env->DeleteGlobalRef(mJavaCallbackRef); | ||
| } | ||
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| void GetConnectedDeviceCallback::OnDeviceConnectedFn(void * context, Device * device) | ||
| { | ||
| JNIEnv * env = JniReferences::GetInstance().GetEnvForCurrentThread(); | ||
| auto * self = static_cast<GetConnectedDeviceCallback *>(context); | ||
| jobject javaCallback = self->mJavaCallbackRef; | ||
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| jclass getConnectedDeviceCallbackCls = nullptr; | ||
| JniReferences::GetInstance().GetClassRef(env, "chip/devicecontroller/GetConnectedDeviceCallbackJni$GetConnectedDeviceCallback", | ||
| getConnectedDeviceCallbackCls); | ||
| VerifyOrReturn(getConnectedDeviceCallbackCls != nullptr, | ||
| ChipLogError(Controller, "Could not find GetConnectedDeviceCallback class")); | ||
| JniClass getConnectedDeviceCallbackJniCls(getConnectedDeviceCallbackCls); | ||
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| jmethodID successMethod; | ||
| JniReferences::GetInstance().FindMethod(env, javaCallback, "onDeviceConnected", "(J)V", &successMethod); | ||
| VerifyOrReturn(successMethod != nullptr, ChipLogError(Controller, "Could not find onDeviceConnected method")); | ||
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| static_assert(sizeof(jlong) >= sizeof(void *), "Need to store a pointer in a Java handle"); | ||
| env->CallVoidMethod(javaCallback, successMethod, reinterpret_cast<jlong>(device)); | ||
| } | ||
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| void GetConnectedDeviceCallback::OnDeviceConnectionFailureFn(void * context, NodeId nodeId, CHIP_ERROR error) | ||
| { | ||
| JNIEnv * env = JniReferences::GetInstance().GetEnvForCurrentThread(); | ||
| auto * self = static_cast<GetConnectedDeviceCallback *>(context); | ||
| jobject javaCallback = self->mJavaCallbackRef; | ||
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| jclass getConnectedDeviceCallbackCls = nullptr; | ||
| JniReferences::GetInstance().GetClassRef(env, "chip/devicecontroller/GetConnectedDeviceCallbackJni$GetConnectedDeviceCallback", | ||
| getConnectedDeviceCallbackCls); | ||
| VerifyOrReturn(getConnectedDeviceCallbackCls != nullptr, | ||
| ChipLogError(Controller, "Could not find GetConnectedDeviceCallback class")); | ||
| JniClass getConnectedDeviceCallbackJniCls(getConnectedDeviceCallbackCls); | ||
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| jmethodID failureMethod; | ||
| JniReferences::GetInstance().FindMethod(env, javaCallback, "onConnectionFailure", "(JLjava/lang/Exception;)V", &failureMethod); | ||
| VerifyOrReturn(failureMethod != nullptr, ChipLogError(Controller, "Could not find onConnectionFailure method")); | ||
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| // Create the exception to return. | ||
| jclass controllerExceptionCls; | ||
| CHIP_ERROR err = JniReferences::GetInstance().GetClassRef(env, "chip/devicecontroller/ChipDeviceControllerException", | ||
| controllerExceptionCls); | ||
| VerifyOrReturn(err == CHIP_NO_ERROR, ChipLogError(Controller, "Could not find exception type for onConnectionFailure")); | ||
| JniClass controllerExceptionJniCls(controllerExceptionCls); | ||
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| jmethodID exceptionConstructor = env->GetMethodID(controllerExceptionCls, "<init>", "(ILjava/lang/String;)V"); | ||
| jobject exception = env->NewObject(controllerExceptionCls, exceptionConstructor, error, env->NewStringUTF(ErrorStr(error))); | ||
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| env->CallVoidMethod(javaCallback, failureMethod, nodeId, exception); | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,40 @@ | ||
| /* | ||
| * | ||
| * Copyright (c) 2021 Project CHIP Authors | ||
| * | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
| #pragma once | ||
|
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| #include <controller/CHIPDeviceController.h> | ||
| #include <jni.h> | ||
|
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| namespace chip { | ||
| namespace Controller { | ||
|
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| // Callback for success and failure cases of GetConnectedDevice(). | ||
| struct GetConnectedDeviceCallback | ||
| { | ||
| GetConnectedDeviceCallback(jobject javaCallback); | ||
| ~GetConnectedDeviceCallback(); | ||
|
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| static void OnDeviceConnectedFn(void * context, Device * device); | ||
| static void OnDeviceConnectionFailureFn(void * context, NodeId nodeId, CHIP_ERROR error); | ||
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| Callback::Callback<OnDeviceConnected> mOnSuccess; | ||
| Callback::Callback<OnDeviceConnectionFailure> mOnFailure; | ||
| jobject mJavaCallbackRef; | ||
| }; | ||
|
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| } // namespace Controller | ||
| } // namespace chip |
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