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// Copyright (C) 2009 Internet Systems Consortium, Inc. ("ISC")
//
// Permission to use, copy, modify, and/or distribute this software for any
// purpose with or without fee is hereby granted, provided that the above
// copyright notice and this permission notice appear in all copies.
//
// THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
// REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
// AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
// INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
// LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
// OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
// PERFORMANCE OF THIS SOFTWARE.
// $Id$
#include "config_data.h"
#include <boost/foreach.hpp>
#include <string>
#include <iostream>
using namespace isc::data;
namespace isc {
namespace config {
static ElementPtr
find_spec_part(ElementPtr spec, const std::string& identifier)
{
//std::cout << "[XX] find_spec_part for " << identifier << std::endl;
if (!spec) {
isc_throw(DataNotFoundError, "Empty specification");
}
//std::cout << "in: " << std::endl << spec << std::endl;
ElementPtr spec_part = spec;
if (identifier == "") {
isc_throw(DataNotFoundError, "Empty identifier");
}
std::string id = identifier;
size_t sep = id.find('/');
while(sep != std::string::npos) {
std::string part = id.substr(0, sep);
//std::cout << "[XX] id part: " << part << std::endl;
if (spec_part->getType() == Element::list) {
bool found = false;
BOOST_FOREACH(ElementPtr list_el, spec_part->listValue()) {
if (list_el->getType() == Element::map &&
list_el->contains("item_name") &&
list_el->get("item_name")->stringValue() == part) {
spec_part = list_el;
found = true;
}
}
if (!found) {
isc_throw(DataNotFoundError, identifier);
}
}
id = id.substr(sep + 1);
sep = id.find("/");
}
if (id != "" && id != "/") {
if (spec_part->getType() == Element::list) {
bool found = false;
BOOST_FOREACH(ElementPtr list_el, spec_part->listValue()) {
if (list_el->getType() == Element::map &&
list_el->contains("item_name") &&
list_el->get("item_name")->stringValue() == id) {
spec_part = list_el;
found = true;
}
}
if (!found) {
isc_throw(DataNotFoundError, identifier);
}
} else if (spec_part->getType() == Element::map) {
if (spec_part->contains("map_item_spec")) {
bool found = false;
BOOST_FOREACH(ElementPtr list_el, spec_part->get("map_item_spec")->listValue()) {
if (list_el->getType() == Element::map &&
list_el->contains("item_name") &&
list_el->get("item_name")->stringValue() == id) {
spec_part = list_el;
found = true;
}
}
if (!found) {
isc_throw(DataNotFoundError, identifier);
}
} else {
isc_throw(DataNotFoundError, identifier);
}
}
}
//std::cout << "[XX] found spec part: " << std::endl << spec_part << std::endl;
return spec_part;
}
static void
spec_name_list(ElementPtr result, ElementPtr spec_part, std::string prefix, bool recurse = false)
{
if (spec_part->getType() == Element::list) {
BOOST_FOREACH(ElementPtr list_el, spec_part->listValue()) {
if (list_el->getType() == Element::map &&
list_el->contains("item_name")) {
std::string new_prefix = prefix;
if (prefix != "") {
new_prefix += "/";
}
new_prefix += list_el->get("item_name")->stringValue();
if (recurse && list_el->get("item_type")->stringValue() == "map") {
spec_name_list(result, list_el->get("map_item_spec"), new_prefix, recurse);
} else {
if (list_el->get("item_type")->stringValue() == "map" ||
list_el->get("item_type")->stringValue() == "list"
) {
new_prefix += "/";
}
result->add(Element::create(new_prefix));
}
}
}
} else if (spec_part->getType() == Element::map && spec_part->contains("map_item_spec")) {
spec_name_list(result, spec_part->get("map_item_spec"), prefix, recurse);
}
}
ElementPtr
ConfigData::getValue(const std::string& identifier)
{
bool fake;
return getValue(fake, identifier);
}
ElementPtr
ConfigData::getValue(bool& is_default, const std::string& identifier)
{
ElementPtr value = _config->find(identifier);
if (value) {
is_default = false;
} else {
ElementPtr spec_part = find_spec_part(_module_spec.getConfigSpec(), identifier);
if (spec_part->contains("item_default")) {
value = spec_part->get("item_default");
is_default = true;
} else {
is_default = false;
value = ElementPtr();
}
}
return value;
}
/// Returns an ElementPtr pointing to a ListElement containing
/// StringElements with the names of the options at the given
/// identifier. If recurse is true, maps will be expanded as well
ElementPtr
ConfigData::getItemList(const std::string& identifier, bool recurse)
{
ElementPtr result = Element::createFromString("[]");
ElementPtr spec_part = getModuleSpec().getConfigSpec();
if (identifier != "" && identifier != "/") {
spec_part = find_spec_part(spec_part, identifier);
}
spec_name_list(result, spec_part, identifier, recurse);
return result;
}
/// Returns an ElementPtr containing a MapElement with identifier->value
/// pairs.
ElementPtr
ConfigData::getFullConfig()
{
ElementPtr result = Element::createFromString("{}");
ElementPtr items = getItemList("", true);
BOOST_FOREACH(ElementPtr item, items->listValue()) {
result->set(item->stringValue(), getValue(item->stringValue()));
}
return result;
}
}
}
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