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ProGuardCORE is a free library to read, analyze, modify, and write Java class files.

There is a newer version: 9.1.6

/*
 * ProGuardCORE -- library to process Java bytecode.
 *
 * Copyright (c) 2002-2020 Guardsquare NV
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package proguard.io;

import java.io.*;

/**
 * This interface describes a data entry, for exanple a ZIP entry, a file, or a directory.
 *
 * @author Eric Lafortune
 */
public interface DataEntry {
  /** Returns the name of this data entry. */
  public String getName();

  /**
   * Returns the original name of this data entry, i.e. the name of the data entry before any
   * renaming or obfuscation.
   */
  public String getOriginalName();

  /** Returns the size of this data entry, in bytes, or -1 if unknown. */
  public long getSize();

  /** Returns whether the data entry represents a directory. */
  public boolean isDirectory();

  /**
   * Returns an input stream for reading the content of this data entry. The data entry may not
   * represent a directory.
   */
  public InputStream getInputStream() throws IOException;

  /** Closes the previously retrieved InputStream. */
  public void closeInputStream() throws IOException;

  /**
   * Returns the parent of this data entry, or null if it doesn't
   * have one.
   */
  public DataEntry getParent();
}