com.github.shoothzj.javatool.util.IoUtil Maven / Gradle / Ivy

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package com.github.shoothzj.javatool.util;

import org.apache.commons.io.IOUtils;
import java.io.BufferedInputStream;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.InputStream;
import java.nio.charset.Charset;
import java.nio.charset.StandardCharsets;

/**
 * @author shoothzj
 */
public class IoUtil extends IOUtils {
    private static final org.slf4j.Logger log = org.slf4j.LoggerFactory.getLogger(IoUtil.class);

    public static String readFile2String(String fileName) {
        try {
            return read2String(new FileInputStream(fileName));
        } catch (FileNotFoundException e) {
            log.error("file not found exception is ", e);
            return "";
        }
    }

    public static String read2String(InputStream inputStream) {
        return read2StringCharset(inputStream, StandardCharsets.UTF_8);
    }

    public static String read2StringCharset(InputStream inputStream, Charset charset) {
        return new String(read2Byte(inputStream), charset);
    }

    public static byte[] read2Byte(InputStream inputStream) {
        try {
            return readFully(new BufferedInputStream(inputStream), inputStream.available());
        } catch (java.io.IOException e) {
            log.error("Read File error, exception is ", e);
        }
        return new byte[0];
    }
}