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org.fisco.bcos.web3j.utils.Files Maven / Gradle / Ivy

package org.fisco.bcos.web3j.utils;

import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/** File utility functions. */
public class Files {
  static Logger logger = LoggerFactory.getLogger(Files.class);

  private Files() {}

  public static byte[] readBytes(File file) throws IOException {
    byte[] bytes = new byte[(int) file.length()];
    FileInputStream fileInputStream = null;
    try {
      fileInputStream = new FileInputStream(file);
      int count = fileInputStream.read(bytes);
      logger.debug("readBytes count :", count);
    } catch (Exception e) {
      logger.error("readBytes error :", e);
      throw e;
    } finally {
      if (fileInputStream != null) {
        fileInputStream.close();
      }
    }
    return bytes;
  }

  public static String readString(File file) throws IOException {
    return new String(readBytes(file));
  }
}




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