ModulePackages_attribute.java

  1. /*
  2.  *  Copyright (c) 2001-2024, Jean Tessier
  3.  *  All rights reserved.
  4.  *
  5.  *  Redistribution and use in source and binary forms, with or without
  6.  *  modification, are permitted provided that the following conditions
  7.  *  are met:
  8.  *
  9.  *      * Redistributions of source code must retain the above copyright
  10.  *        notice, this list of conditions and the following disclaimer.
  11.  *
  12.  *      * Redistributions in binary form must reproduce the above copyright
  13.  *        notice, this list of conditions and the following disclaimer in the
  14.  *        documentation and/or other materials provided with the distribution.
  15.  *
  16.  *      * Neither the name of Jean Tessier nor the names of his contributors
  17.  *        may be used to endorse or promote products derived from this software
  18.  *        without specific prior written permission.
  19.  *
  20.  *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  21.  *  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  22.  *  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  23.  *  A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR
  24.  *  CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  25.  *  EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  26.  *  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  27.  *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
  28.  *  LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
  29.  *  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  30.  *  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  31.  */

  32. package com.jeantessier.classreader.impl;

  33. import com.jeantessier.classreader.*;
  34. import org.apache.logging.log4j.*;

  35. import java.io.*;
  36. import java.util.*;
  37. import java.util.stream.*;

  38. public class ModulePackages_attribute extends Attribute_info implements com.jeantessier.classreader.ModulePackages_attribute {
  39.     private final Collection<ModulePackage> packages = new LinkedList<>();

  40.     public ModulePackages_attribute(ConstantPool constantPool, Visitable owner, DataInput in) throws IOException {
  41.         super(constantPool, owner);

  42.         int byteCount = in.readInt();
  43.         LogManager.getLogger(getClass()).debug("Attribute length: {}", byteCount);

  44.         int numPackages = in.readUnsignedShort();
  45.         LogManager.getLogger(getClass()).debug("Reading {} package(s) ...", numPackages);
  46.         IntStream.range(0, numPackages).forEach(i -> {
  47.             try {
  48.                 LogManager.getLogger(getClass()).debug("parameter {}:", i);
  49.                 packages.add(new ModulePackage(constantPool, in));
  50.             } catch (IOException e) {
  51.                 throw new RuntimeException(e);
  52.             }
  53.         });
  54.     }

  55.     public Collection<? extends ModulePackage> getPackages() {
  56.         return packages;
  57.     }

  58.     public String getAttributeName() {
  59.         return AttributeType.MODULE_PACKAGES.getAttributeName();
  60.     }

  61.     public void accept(Visitor visitor) {
  62.         visitor.visitModulePackages_attribute(this);
  63.     }
  64. }