import ohos.hiviewdfx.HiLog;
import ohos.hiviewdfx.HiLogLabel;
import ohos.hiviewdfx.HiLogConst;

import java.io.FileInputStream;
import java.io.IOException;
import java.io.SequenceInputStream;
import java.util.Enumeration;
import java.util.Vector;

public class SequenceInputStreamExample {
    private static final HiLogLabel LABEL = new HiLogLabel(HiLogConst.DEBUG, 0x00201, "SequenceInputStreamExample");

    public static void main(String[] args) {
        try {
            // 创建两个输入流
            FileInputStream input1 = new FileInputStream("/data/file1.txt");
            FileInputStream input2 = new FileInputStream("/data/file2.txt");

            // 创建Vector对象，用于存储输入流
            Vector<FileInputStream> vector = new Vector<>();
            vector.add(input1);
            vector.add(input2);

            // 创建Enumeration对象，用于遍历输入流
            Enumeration<FileInputStream> enumeration = vector.elements();

            // 创建SequenceInputStream对象，串联输入流
            SequenceInputStream sequenceInputStream = new SequenceInputStream(enumeration);

            // 读取数据
            int data;
            while ((data = sequenceInputStream.read()) != -1) {
                // 处理读取的数据，这里简单打印到日志中
                HiLog.info(LABEL, "Read: {}", (char) data);
            }

            // 关闭流
            sequenceInputStream.close();
            input1.close();
            input2.close();

        } catch (IOException e) {
            HiLog.error(LABEL, "发生错误：{}", e.getMessage());
        }
    }
}