Java Path File Name nio initializePath(String... envVarNames)

Description

initialize Path

License

Open Source License

Declaration

private static void initializePath(String... envVarNames) throws FileNotFoundException 

Method Source Code

//package com.java2s;
//License from project: Open Source License 

import java.io.File;
import java.io.FileNotFoundException;

import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.HashMap;
import java.util.Map;

public class Main {
    public static final String SUBDIRECTORY = "HookAnyText";
    public static final Map<String, Path> DRICTORIES = new HashMap<>();

    private static void initializePath(String... envVarNames) throws FileNotFoundException {

        String keyEnvVarName = envVarNames[0];

        Path p = DRICTORIES.get(keyEnvVarName);
        if (p != null)
            return;

        String directory = null;/*from www.j a  v  a  2  s .  c o  m*/
        for (int i = 0; i < envVarNames.length && directory == null; ++i) {
            directory = System.getenv(envVarNames[i]);
        }
        if (directory == null) {
            throw new FileNotFoundException("No " + keyEnvVarName + " directory found.");
        }
        p = Paths.get(directory, SUBDIRECTORY);
        new File(p.toString()).mkdirs();
        DRICTORIES.put(keyEnvVarName, p);
    }
}

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