C++ 빅데이터 개발에서 데이터 필터 문제를 해결하는 방법은 무엇입니까?

#include <iostream>
#include <vector>

using namespace std;

class DataFilter {
public:
    virtual bool filter(int data) = 0;
};

class GreaterThanFilter : public DataFilter {
public:
    GreaterThanFilter(int threshold) : threshold_(threshold) {}

    bool filter(int data) {
        return data > threshold_;
    }

private:
    int threshold_;
};

class EvenNumberFilter : public DataFilter {
public:
    bool filter(int data) {
        return data % 2 == 0;
    }
};

class DataProcessor {
public:
    DataProcessor(DataFilter* filter) : filter_(filter) {}

    void process(vector<int> data) {
        for (int i : data) {
            if (filter_->filter(i)) {
                cout << i << " ";
            }
        }
        cout << endl;
    }

private:
    DataFilter* filter_;
};

int main() {
    vector<int> data = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
    
    // 使用大于过滤器筛选大于5的数据
    DataFilter* greaterThanFilter = new GreaterThanFilter(5);
    DataProcessor processor1(greaterThanFilter);
    cout << "Filtering data greater than 5: ";
    processor1.process(data);
    
    // 使用偶数过滤器筛选偶数数据
    DataFilter* evenNumberFilter = new EvenNumberFilter();
    DataProcessor processor2(evenNumberFilter);
    cout << "Filtering even numbers: ";
    processor2.process(data);
    
    delete greaterThanFilter;
    delete evenNumberFilter;
    
    return 0;
}