content: /*
   * Copyright (c) 2009, 2013, Oracle and/or its affiliates. All rights reserved.
   * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   *
   * This code is free software; you can redistribute it and/or modify it
   * under the terms of the GNU General Public License version 2 only, as
   * published by the Free Software Foundation.  Oracle designates this
   * particular file as subject to the "Classpath" exception as provided
   * by Oracle in the LICENSE file that accompanied this code.
   *
   * This code is distributed in the hope that it will be useful, but WITHOUT
   * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
   * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
   * version 2 for more details (a copy is included in the LICENSE file that
   * accompanied this code).
   *
   * You should have received a copy of the GNU General Public License version
   * 2 along with this work; if not, write to the Free Software Foundation,
   * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
   *
   * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
   * or visit www.oracle.com if you need additional information or have any
   * questions.
   */
  
  package com.termux.shared.file.filesystem;
  
  import androidx.annotation.NonNull;
  
  import java.text.SimpleDateFormat;
  import java.util.Calendar;
  import java.util.Objects;
  import java.util.concurrent.TimeUnit;
  
  /**
   * Represents the value of a file's time stamp attribute. For example, it may
   * represent the time that the file was last
   * {@link FileAttributes#lastModifiedTime() modified},
   * {@link FileAttributes#lastAccessTime() accessed},
   * or {@link FileAttributes#creationTime() created}.
   *
   * <p> Instances of this class are immutable.
   *
   * https://cs.android.com/android/platform/superproject/+/android-11.0.0_r3:libcore/ojluni/src/main/java/java/nio/file/attribute/FileTime.java
   *
   * @since 1.7
   * @see java.nio.file.Files#setLastModifiedTime
   * @see java.nio.file.Files#getLastModifiedTime
   */
  
  public final class FileTime {
      /**
       * The unit of granularity to interpret the value. Null if
       * this {@code FileTime} is converted from an {@code Instant},
       * the {@code value} and {@code unit} pair will not be used
       * in this scenario.
       */
      private final TimeUnit unit;
  
      /**
       * The value since the epoch; can be negative.
       */
      private final long value;
      
  
      /**
       * The value return by toString (created lazily)
       */
      private String valueAsString;
  
      /**
       * Initializes a new instance of this class.
       */
      private FileTime(long value, TimeUnit unit) {
          this.value = value;
          this.unit = unit;
      }
  
      /**
       * Returns a {@code FileTime} representing a value at the given unit of
       * granularity.
       *
       * @param   value
       *          the value since the epoch (1970-01-01T00:00:00Z); can be
       *          negative
       * @param   unit
       *          the unit of granularity to interpret the value
       *
       * @return  a {@code FileTime} representing the given value
       */
      public static FileTime from(long value, @NonNull TimeUnit unit) {
          Objects.requireNonNull(unit, "unit");
          return new FileTime(value, unit);
      }
  
      /**
       * Returns a {@code FileTime} representing the given value in milliseconds.
       *
       * @param   value
       *          the value, in milliseconds, since the epoch
       *          (1970-01-01T00:00:00Z); can be negative
       *
       * @return  a {@code FileTime} representing the given value
       */
      public static FileTime fromMillis(long value) {
          return new FileTime(value, TimeUnit.MILLISECONDS);
      }
  
      /**
       * Returns the value at the given unit of granularity.
       *
       * <p> Conversion from a coarser granularity that would numerically overflow
       * saturate to {@code Long.MIN_VALUE} if negative or {@code Long.MAX_VALUE}
       * if positive.
       *
       * @param   unit
       *          the unit of granularity for the return value
       *
       * @return  value in the given unit of granularity, since the epoch
       *          since the epoch (1970-01-01T00:00:00Z); can be negative
       */
      public long to(TimeUnit unit) {
          Objects.requireNonNull(unit, "unit");
          return unit.convert(this.value, this.unit);
      }
  
      /**
       * Returns the value in milliseconds.
       *
       * <p> Conversion from a coarser granularity that would numerically overflow
       * saturate to {@code Long.MIN_VALUE} if negative or {@code Long.MAX_VALUE}
       * if positive.
       *
       * @return  the value in milliseconds, since the epoch (1970-01-01T00:00:00Z)
       */
      public long toMillis() {
          return unit.toMillis(value);
      }
  
      @NonNull
      @Override
      public String toString() {
          return getDate(toMillis(), "yyyy.MM.dd HH:mm:ss.SSS z");
      }
  
      public static String getDate(long milliSeconds, String format) {
          try {
              Calendar calendar = Calendar.getInstance();
              calendar.setTimeInMillis(milliSeconds);
              return new SimpleDateFormat(format).format(calendar.getTime());
          } catch(Exception e) {
              return Long.toString(milliSeconds);
          }
      }
  
  }
  