118 lines
2.9 KiB
Java
118 lines
2.9 KiB
Java
package io.wdd.common.utils;
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import org.springframework.stereotype.Component;
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import org.springframework.util.StringUtils;
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import java.io.BufferedReader;
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import java.io.FileReader;
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import java.io.IOException;
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import java.io.StringReader;
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import java.util.ArrayList;
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import java.util.Arrays;
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import java.util.List;
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import java.util.stream.Collectors;
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@Component
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public class FunctionReader {
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public static List<List<String>> ReadFileToCommandList(String functionFilePath) {
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// https://www.digitalocean.com/community/tutorials/java-read-file-line-by-line
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List<List<String>> result = null;
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try {
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BufferedReader bufferedReader = new BufferedReader(new FileReader(functionFilePath));
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result = doReadContent(
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result,
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bufferedReader
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);
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} catch (IOException e) {
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throw new RuntimeException(e);
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}
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return result;
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}
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public static List<List<String>> ReadStringToCommandList(String functionContent) {
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List<List<String>> result = null;
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try {
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// 构造一个 buffered Reader
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BufferedReader bufferedReader = new BufferedReader(
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new StringReader(functionContent)
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);
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// 执行read操作
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result = doReadContent(
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result,
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bufferedReader
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);
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} catch (IOException e) {
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throw new RuntimeException(e);
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}
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return result;
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}
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/**
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* 实际解析从前端传入的 脚本命令， 将其转换为 List<List<String>>
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*
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* @param result
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* @param bufferedReader
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* @return
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* @throws IOException
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*/
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private static List<List<String>> doReadContent(List<List<String>> result, BufferedReader bufferedReader) throws IOException {
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String line = bufferedReader.readLine();
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if (line != null) {
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result = new ArrayList<>(64);
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}
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while (line != null) {
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if (!StringUtils.isEmpty(line)) {
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result.add(SplitSpaceIndentToCommandList(line));
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}
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line = bufferedReader.readLine();
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}
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return result;
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}
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public static List<String> SplitSpaceIndentToCommandList(String commandLine) {
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return Arrays
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.stream(commandLine
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.split(" "))
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.collect(Collectors.toList());
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}
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public static List<String> SplitCommaIndentToCommandList(String commandLine) {
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// 需要进行归一化，去除掉多余的空格
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return Arrays
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.stream(commandLine.split(","))
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.map(
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split -> split.replace(
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" ",
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""
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)
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)
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.collect(Collectors.toList());
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}
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}
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