CStatus status;

GPipelinePtr pipeline = GPipelineFactory::create();

GElementPtr a, b_cluster, c, d_region, e = nullptr;

b_cluster = pipeline->createGGroup<GCluster>({

pipeline->createGNode<MyNode1>(GNodeInfo("nodeB1", 1)), // 创建名为nodeB1的node信息，并将其放入b_cluster中

pipeline->createGNode<MyNode1>(GNodeInfo("nodeB2", 3)), // 创建名为nodeB2且自循环3次的node信息，并将其放入b_cluster中

pipeline->createGNode<MyNode2>(GNodeInfo("nodeB3", 1))

});

GElementPtr d1, d2, d3, d4, d23_cluster = nullptr;

d1 = pipeline->createGNode<MyNode1>(GNodeInfo({}, "nodeD1", 1));

d2 = pipeline->createGNode<MyNode1>(GNodeInfo("nodeD2", 1)); // 创建node，稍后放入cluster中

d3 = pipeline->createGNode<MyNode1>(GNodeInfo("nodeD3", 1));

d23_cluster = pipeline->createGGroup<GCluster>({d2, d3}, {d1}, "clusterD23", 1);

d4 = pipeline->createGNode<MyNode2>(GNodeInfo({d1}, "nodeD4", 1));

d_region = pipeline->createGGroup<GRegion>({d1, d23_cluster, d4}); // 创建名为d_region的region信息，并将{d1,d23_cluster,d4}放入其中

status += pipeline->registerGElement<MyNode1>(&a, {}, "nodeA", 1);

status += pipeline->registerGElement<GCluster>(&b_cluster, {}, "clusterB", 1);

status += pipeline->registerGElement<MyNode1>(&c, {a, b_cluster}, "nodeC", 1);

status += pipeline->registerGElement<GRegion>(&d_region, {a, b_cluster}, "regionD", 2); // 将名为regionD，依赖{a,b_cluster}执行且自循环2次的region信息，注册入pipeline中

status += pipeline->registerGElement<MyNode1>(&e, {c, d_region}, "nodeE", 1);

if (!status.isOK()) {

return;

}

status = pipeline->process();

GPipelineFactory::remove(pipeline);