scripts/idl/generators/java/ChipClustersRead.jinja

{# Copyright (c) 2022 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 <controller/java/zap-generated/CHIPReadCallbacks.h>

#include <app-common/zap-generated/cluster-objects.h>
#include <zap-generated/CHIPClusters.h>

#include <controller/java/AndroidClusterExceptions.h>
#include <controller/java/CHIPDefaultCallbacks.h>
#include <jni.h>
#include <lib/support/CodeUtils.h>
#include <platform/PlatformManager.h>

#define JNI_METHOD(RETURN, CLASS_NAME, METHOD_NAME)                                                                                \
    extern "C" JNIEXPORT RETURN JNICALL Java_chip_devicecontroller_ChipClusters_00024##CLASS_NAME##_##METHOD_NAME

{%-   for attr in cluster.attributes | attributesWithCallback(typeLookup) %}
JNI_METHOD(void, {{cluster.name | capitalcase}}Cluster, read{{attr.definition.name | capitalcase}}Attribute)(JNIEnv * env, jobject self, jlong clusterPtr, jobject callback)
{
    chip::DeviceLayer::StackLock lock;
    using TypeInfo = chip::app::Clusters::{{cluster.name | capitalcase}}::Attributes::{{attr.definition.name | capitalcase}}::TypeInfo;
    {%- set callbackName = attr | callbackName(cluster, typeLookup) %}
    std::unique_ptr<{{callbackName}}, void (*)({{callbackName}} *)> onSuccess(chip::Platform::New<{{callbackName}}>(callback, false), chip::Platform::Delete<{{callbackName}}>);
    VerifyOrReturn(onSuccess.get() != nullptr, chip::AndroidClusterExceptions::GetInstance().ReturnIllegalStateException(env, callback, "Error creating native success callback", CHIP_ERROR_NO_MEMORY));

    std::unique_ptr<chip::CHIPDefaultFailureCallback, void (*)(chip::CHIPDefaultFailureCallback *)> onFailure(chip::Platform::New<chip::CHIPDefaultFailureCallback>(callback), chip::Platform::Delete<chip::CHIPDefaultFailureCallback>);
    VerifyOrReturn(onFailure.get() != nullptr, chip::AndroidClusterExceptions::GetInstance().ReturnIllegalStateException(env, callback, "Error creating native failure callback", CHIP_ERROR_NO_MEMORY));

    CHIP_ERROR err = CHIP_NO_ERROR;
    chip::Controller::{{cluster.name | capitalcase}}Cluster * cppCluster = reinterpret_cast<chip::Controller::{{cluster.name | capitalcase }}Cluster *>(clusterPtr);
    VerifyOrReturn(cppCluster != nullptr, chip::AndroidClusterExceptions::GetInstance().ReturnIllegalStateException(env, callback, "Could not get native cluster", CHIP_ERROR_INCORRECT_STATE));

    auto successFn = chip::Callback::Callback<CHIP{{cluster.name | capitalcase}}Cluster{{attr.definition.name | capitalcase}}AttributeCallbackType>::FromCancelable(onSuccess->Cancel());
    auto failureFn = chip::Callback::Callback<CHIPDefaultFailureCallbackType>::FromCancelable(onFailure->Cancel());
    err = cppCluster->ReadAttribute<TypeInfo>(onSuccess->mContext, successFn->mCall, failureFn->mCall);
    VerifyOrReturn(err == CHIP_NO_ERROR, chip::AndroidClusterExceptions::GetInstance().ReturnIllegalStateException(env, callback, "Error reading attribute", err));

    onSuccess.release();
    onFailure.release();
}

{%   endfor %}