package com.google.common.io;

import java.io.File;

public class Files {
    /** Maximum loop count when creating temp directories. */
    private static final int TEMP_DIR_ATTEMPTS = 10000;

    public static File createTempDir() {
        File baseDir = new File(System.getProperty("java.io.tmpdir"));
        String baseName = System.currentTimeMillis() + "-";

        for (int counter = 0; counter < TEMP_DIR_ATTEMPTS; counter++) {
            File tempDir = new File(baseDir, baseName + counter);
            if (tempDir.mkdir()) {
                return tempDir;
            }
        }
        throw new IllegalStateException("Failed to create directory within " + TEMP_DIR_ATTEMPTS + " attempts (tried "
                + baseName + "0 to " + baseName + (TEMP_DIR_ATTEMPTS - 1) + ')');
    }
}