/*
    *  Licensed to the Apache Software Foundation (ASF) under one or more
    *  contributor license agreements.  See the NOTICE file distributed with
    *  this work for additional information regarding copyright ownership.
    *  The ASF licenses this file to You 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 org.apache.commons.compress.harmony.unpack200.bytecode;
  
  import java.io.DataOutputStream;
  import java.io.IOException;
  import java.util.ArrayList;
  import java.util.List;
  
  /**
   * Annotations class file attribute, either a RuntimeVisibleAnnotations attribute or a RuntimeInvisibleAnnotations attribute.
   */
  public class RuntimeVisibleorInvisibleAnnotationsAttribute extends AnnotationsAttribute {
  
      private final int numAnnotations;
      private final Annotation[] annotations;
  
      public RuntimeVisibleorInvisibleAnnotationsAttribute(final CPUTF8 name, final Annotation[] annotations) {
          super(name);
          this.numAnnotations = annotations.length;
          this.annotations = annotations;
      }
  
      @Override
      protected int getLength() {
          int length = 2;
          for (int i = 0; i < numAnnotations; i++) {
              length += annotations[i].getLength();
          }
          return length;
      }
  
      @Override
      protected ClassFileEntry[] getNestedClassFileEntries() {
          final List<Object> nested = new ArrayList<>();
          nested.add(attributeName);
          for (final Annotation annotation : annotations) {
              nested.addAll(annotation.getClassFileEntries());
          }
          return nested.toArray(ClassFileEntry.NONE);
      }
  
      @Override
      protected void resolve(final ClassConstantPool pool) {
          super.resolve(pool);
          for (final Annotation annotation : annotations) {
              annotation.resolve(pool);
          }
      }
  
      @Override
      public String toString() {
          return attributeName.underlyingString() + ": " + numAnnotations + " annotations";
      }
  
      @Override
      protected void writeBody(final DataOutputStream dos) throws IOException {
          final int size = dos.size();
          dos.writeShort(numAnnotations);
          for (int i = 0; i < numAnnotations; i++) {
              annotations[i].writeBody(dos);
          }
          if (dos.size() - size != getLength()) {
              throw new Error();
          }
      }
  }