/*

 * Copyright (c) 2012, 2019, Oracle and/or its affiliates. All rights reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 *

 */

#include "precompiled.hpp"

#include "classfile/classLoaderData.hpp"

#include "logging/log.hpp"

#include "memory/heapInspection.hpp"

#include "memory/metadataFactory.hpp"

#include "memory/metaspaceClosure.hpp"

#include "memory/oopFactory.hpp"

#include "oops/annotations.hpp"

#include "oops/instanceKlass.hpp"

#include "oops/typeArrayOop.inline.hpp"

#include "utilities/ostream.hpp"

// Allocate annotations in metadata area

Annotations* Annotations::allocate(ClassLoaderData* loader_data, TRAPS) {

  return new (loader_data, size(), MetaspaceObj::AnnotationsType, THREAD) Annotations();

}

// helper

void Annotations::free_contents(ClassLoaderData* loader_data, Array<AnnotationArray*>* p) {

  if (p != NULL) {

    for (int i = 0; i < p->length(); i++) {

      MetadataFactory::free_array<u1>(loader_data, p->at(i));

    }

    MetadataFactory::free_array<AnnotationArray*>(loader_data, p);

  }

}

void Annotations::deallocate_contents(ClassLoaderData* loader_data) {

  if (class_annotations() != NULL) {

    MetadataFactory::free_array<u1>(loader_data, class_annotations());

  }

  free_contents(loader_data, fields_annotations());

  if (class_type_annotations() != NULL) {

    MetadataFactory::free_array<u1>(loader_data, class_type_annotations());

  }

  free_contents(loader_data, fields_type_annotations());

}

// Copy annotations to JVM call or reflection to the java heap.

// The alternative to creating this array and adding to Java heap pressure

// is to have a hashtable of the already created typeArrayOops

typeArrayOop Annotations::make_java_array(AnnotationArray* annotations, TRAPS) {

  if (annotations != NULL) {

    int length = annotations->length();

    typeArrayOop copy = oopFactory::new_byteArray(length, CHECK_NULL);

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

      copy->byte_at_put(i, annotations->at(i));

    }

    return copy;

  } else {

    return NULL;

  }

}

void Annotations::metaspace_pointers_do(MetaspaceClosure* it) {

  log_trace(cds)("Iter(Annotations): %p", this);

  it->push(&_class_annotations);

  it->push(&_fields_annotations);

  it->push(&_class_type_annotations);

  it->push(&_fields_type_annotations); // FIXME: need a test case where _fields_type_annotations != NULL

}

void Annotations::print_value_on(outputStream* st) const {

  st->print("Annotations(" INTPTR_FORMAT ")", p2i(this));

}

#if INCLUDE_SERVICES

// Size Statistics

julong Annotations::count_bytes(Array<AnnotationArray*>* p) {

  julong bytes = 0;

  if (p != NULL) {

    for (int i = 0; i < p->length(); i++) {

      bytes += KlassSizeStats::count_array(p->at(i));

    }

    bytes += KlassSizeStats::count_array(p);

  }

  return bytes;

}

void Annotations::collect_statistics(KlassSizeStats *sz) const {

  sz->_annotations_bytes = sz->count(this);

  sz->_class_annotations_bytes = sz->count(class_annotations());

  sz->_class_type_annotations_bytes = sz->count(class_type_annotations());

  sz->_fields_annotations_bytes = count_bytes(fields_annotations());

  sz->_fields_type_annotations_bytes = count_bytes(fields_type_annotations());

  sz->_annotations_bytes +=

      sz->_class_annotations_bytes +

      sz->_class_type_annotations_bytes +

      sz->_fields_annotations_bytes +

      sz->_fields_type_annotations_bytes;

  sz->_ro_bytes += sz->_annotations_bytes;

}

#endif // INCLUDE_SERVICES

#define BULLET  " - "

#ifndef PRODUCT

void Annotations::print_on(outputStream* st) const {

  st->print(BULLET"class_annotations            "); class_annotations()->print_value_on(st);

  st->print(BULLET"fields_annotations           "); fields_annotations()->print_value_on(st);

  st->print(BULLET"class_type_annotations       "); class_type_annotations()->print_value_on(st);

  st->print(BULLET"fields_type_annotations      "); fields_type_annotations()->print_value_on(st);

}

#endif // PRODUCT