/*

 * Copyright (c) 2012, 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 "memory/metadataFactory.hpp"

#include "memory/oopFactory.hpp"

#include "oops/annotations.hpp"

#include "oops/instanceKlass.hpp"

#include "utilities/ostream.hpp"

// Allocate annotations in metadata area

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

  return new (loader_data, size(), true, THREAD) Annotations();

}

Annotations* Annotations::allocate(ClassLoaderData* loader_data,

                                   Array<AnnotationArray*>* fa,

                                   Array<AnnotationArray*>* ma,

                                   Array<AnnotationArray*>* mpa,

                                   Array<AnnotationArray*>* mda, TRAPS) {

  return new (loader_data, size(), true, THREAD) Annotations(fa, ma, mpa, mda);

}

// helper

static void 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());

  free_contents(loader_data, methods_annotations());

  free_contents(loader_data, methods_parameter_annotations());

  free_contents(loader_data, methods_default_annotations());

}

// Set the annotation at 'idnum' to 'anno'.

// We don't want to create or extend the array if 'anno' is NULL, since that is the

// default value.  However, if the array exists and is long enough, we must set NULL values.

void Annotations::set_methods_annotations_of(instanceKlassHandle ik,

                                             int idnum, AnnotationArray* anno,

                                             Array<AnnotationArray*>** md_p,

                                             TRAPS) {

  Array<AnnotationArray*>* md = *md_p;

  if (md != NULL && md->length() > idnum) {

    md->at_put(idnum, anno);

  } else if (anno != NULL) {

    // create the array

    int length = MAX2(idnum+1, (int)ik->idnum_allocated_count());

    md = MetadataFactory::new_array<AnnotationArray*>(ik->class_loader_data(), length, CHECK);

    if (*md_p != NULL) {

      // copy the existing entries

      for (int index = 0; index < (*md_p)->length(); index++) {

        md->at_put(index, (*md_p)->at(index));

      }

    }

    set_annotations(md, md_p);

    md->at_put(idnum, anno);

  } // if no array and idnum isn't included there is nothing to do

}

// Keep created annotations in a global growable array (should be hashtable)

// need to add, search, delete when class is unloaded.

// Does it need a lock?  yes.  This sucks.

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

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::print_value_on(outputStream* st) const {

  st->print("Anotations(" INTPTR_FORMAT ")", this);

}

#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"methods_annotations          "); methods_annotations()->print_value_on(st);

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

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

}

#endif // PRODUCT