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 * reserved comment block

 * DO NOT REMOVE OR ALTER!

 */

/*

 * 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

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package com.sun.org.apache.bcel.internal.classfile;

import java.io.DataInput;

import java.io.DataOutputStream;

import java.io.IOException;

import java.util.ArrayList;

import java.util.Collections;

import java.util.List;

/**

 * represents one parameter annotation in the parameter annotation table

 *

 * @version $Id: ParameterAnnotationEntry

 * @since 6.0

 */

public class ParameterAnnotationEntry implements Node {

    private final AnnotationEntry[] annotation_table;

    /**

     * Construct object from input stream.

     *

     * @param input Input stream

     * @throws IOException

     */

    ParameterAnnotationEntry(final DataInput input, final ConstantPool constant_pool) throws IOException {

        final int annotation_table_length = input.readUnsignedShort();

        annotation_table = new AnnotationEntry[annotation_table_length];

        for (int i = 0; i < annotation_table_length; i++) {

            // TODO isRuntimeVisible

            annotation_table[i] = AnnotationEntry.read(input, constant_pool, false);

        }

    }

    /**

     * Called by objects that are traversing the nodes of the tree implicitely

     * defined by the contents of a Java class. I.e., the hierarchy of methods,

     * fields, attributes, etc. spawns a tree of objects.

     *

     * @param v Visitor object

     */

    @Override

    public void accept( final Visitor v ) {

        v.visitParameterAnnotationEntry(this);

    }

    /**

     * returns the array of annotation entries in this annotation

     */

    public AnnotationEntry[] getAnnotationEntries() {

        return annotation_table;

    }

    public void dump(final DataOutputStream dos) throws IOException {

        dos.writeShort(annotation_table.length);

        for (final AnnotationEntry entry : annotation_table) {

            entry.dump(dos);

        }

    }

  public static ParameterAnnotationEntry[] createParameterAnnotationEntries(final Attribute[] attrs) {

      // Find attributes that contain parameter annotation data

      final List<ParameterAnnotationEntry> accumulatedAnnotations = new ArrayList<>(attrs.length);

      for (final Attribute attribute : attrs) {

          if (attribute instanceof ParameterAnnotations) {

              final ParameterAnnotations runtimeAnnotations = (ParameterAnnotations)attribute;

              Collections.addAll(accumulatedAnnotations, runtimeAnnotations.getParameterAnnotationEntries());

          }

      }

      return accumulatedAnnotations.toArray(new ParameterAnnotationEntry[accumulatedAnnotations.size()]);

  }

}