proguard.io.DummyDataEntry Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of proguard-core Show documentation

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 {@link DataEntry} represents a named output entry that doesn't return an input stream. It is
 * mostly useful for testing data entry writers, explicitly creating and using output streams.
 *
 * @author Eric Lafortune
 */
public class DummyDataEntry implements DataEntry {
  private final DataEntry parent;
  private final String name;
  private final long size;
  private final boolean isDirectory;

  /** Creates a new NamedDataEntry with the given name, parent, and size. */
  public DummyDataEntry(DataEntry parent, String name, long size, boolean isDirectory) {
    this.parent = parent;
    this.name = name;
    this.size = size;
    this.isDirectory = isDirectory;
  }

  // Implementations for DataEntry.

  @Override
  public String getName() {
    return name;
  }

  @Override
  public String getOriginalName() {
    return getName();
  }

  @Override
  public long getSize() {
    return size;
  }

  @Override
  public boolean isDirectory() {
    return isDirectory;
  }

  @Override
  public InputStream getInputStream() throws IOException {
    throw new UnsupportedOperationException(
        "Can't retrieve input stream for output entry [" + name + "]");
  }

  @Override
  public void closeInputStream() throws IOException {}

  @Override
  public DataEntry getParent() {
    return parent;
  }

  // Implementations for Object.

  @Override
  public String toString() {
    return String.valueOf(parent) + ':' + name;
  }
}