/*

* Copyright (c) 2016, 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 "trace/traceStream.hpp"

#if INCLUDE_TRACE

#include "classfile/classLoaderData.hpp"

#include "classfile/javaClasses.inline.hpp"

#include "memory/resourceArea.hpp"

#include "oops/klass.hpp"

#include "oops/method.hpp"

#include "oops/symbol.hpp"

void TraceStream::print_val(const char* label, const Klass* val) const {

  ResourceMark rm;

  const char* description = "NULL";

  if (val != NULL) {

    const Symbol* name = val->name();

    if (name != NULL) {

      description = name->as_C_string();

    }

  }

  tty->print("%s = %s", label, description);

}

void TraceStream::print_val(const char* label, const Method* val) const {

  ResourceMark rm;

  const char* description = "NULL";

  if (val != NULL) {

    description = val->name_and_sig_as_C_string();

  }

  tty->print("%s = %s", label, description);

}

void TraceStream::print_val(const char* label, const ClassLoaderData* cld) const {

  ResourceMark rm;

  if (cld == NULL || cld->is_anonymous()) {

    tty->print("%s = NULL", label);

    return;

  }

  const char* class_loader_name = "NULL";

  const char* class_loader_type_name = "NULL";

  const oop class_loader_oop = cld->class_loader();

  if (class_loader_oop != NULL) {

    const Klass* k = class_loader_oop->klass();

    assert(k != NULL, "invariant");

    const Symbol* klass_name_sym = k->name();

    if (klass_name_sym != NULL) {

      class_loader_type_name = klass_name_sym->as_C_string();

    }

    const oop class_loader_name_oop =

      java_lang_ClassLoader::name(class_loader_oop);

    if (class_loader_name_oop != NULL) {

      const char* class_loader_name_from_oop =

        java_lang_String::as_utf8_string(class_loader_name_oop);

      if (class_loader_name_from_oop != NULL &&

            class_loader_name_from_oop[0] != '\0') {

        class_loader_name = class_loader_name_from_oop;

      }

    }

  } else {

    assert(class_loader_oop == NULL, "invariant");

    // anonymous CLDs are excluded, this would be the boot loader

    class_loader_name = "boot";

  }

  tty->print("%s = name=%s class=%s", label, class_loader_name, class_loader_type_name);

}

#endif // INCLUDE_TRACE