341 lines
9.9 KiB
C++
341 lines
9.9 KiB
C++
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#ifndef OSMIUM_OSM_CHANGESET_HPP
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#define OSMIUM_OSM_CHANGESET_HPP
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/*
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This file is part of Osmium (http://osmcode.org/libosmium).
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Copyright 2013,2014 Jochen Topf <jochen@topf.org> and others (see README).
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Boost Software License - Version 1.0 - August 17th, 2003
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Permission is hereby granted, free of charge, to any person or organization
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obtaining a copy of the software and accompanying documentation covered by
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this license (the "Software") to use, reproduce, display, distribute,
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execute, and transmit the Software, and to prepare derivative works of the
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Software, and to permit third-parties to whom the Software is furnished to
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do so, all subject to the following:
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The copyright notices in the Software and this entire statement, including
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the above license grant, this restriction and the following disclaimer,
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must be included in all copies of the Software, in whole or in part, and
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all derivative works of the Software, unless such copies or derivative
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works are solely in the form of machine-executable object code generated by
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a source language processor.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
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SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
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FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
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ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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DEALINGS IN THE SOFTWARE.
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*/
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#include <cstdint>
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#include <cstring>
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#include <osmium/memory/collection.hpp>
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#include <osmium/memory/item.hpp>
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#include <osmium/osm/box.hpp>
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#include <osmium/osm/entity.hpp>
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#include <osmium/osm/item_type.hpp>
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#include <osmium/osm/tag.hpp>
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#include <osmium/osm/timestamp.hpp>
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#include <osmium/osm/types.hpp>
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namespace osmium {
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namespace builder {
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template <class T> class ObjectBuilder;
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}
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/**
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* An OSM Changeset is of a group of changes made by a single user over a
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* short period of time.
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*/
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class Changeset : public osmium::OSMEntity {
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friend class osmium::builder::ObjectBuilder<osmium::Changeset>;
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osmium::Timestamp m_created_at;
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osmium::Timestamp m_closed_at;
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osmium::Box m_bounds;
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changeset_id_type m_id {0};
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num_changes_type m_num_changes {0};
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user_id_type m_uid {0};
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string_size_type m_user_size;
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Changeset() :
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OSMEntity(sizeof(Changeset), osmium::item_type::changeset) {
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}
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void user_size(string_size_type size) {
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m_user_size = size;
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}
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unsigned char* subitems_position() {
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return data() + osmium::memory::padded_length(sizeof(Changeset) + m_user_size);
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}
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const unsigned char* subitems_position() const {
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return data() + osmium::memory::padded_length(sizeof(Changeset) + m_user_size);
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}
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template <class T>
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T& subitem_of_type() {
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for (iterator it = begin(); it != end(); ++it) {
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if (it->type() == T::itemtype) {
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return reinterpret_cast<T&>(*it);
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}
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}
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static T subitem;
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return subitem;
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}
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template <class T>
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const T& subitem_of_type() const {
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for (const_iterator it = cbegin(); it != cend(); ++it) {
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if (it->type() == T::itemtype) {
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return reinterpret_cast<const T&>(*it);
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}
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}
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static const T subitem;
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return subitem;
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}
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public:
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/// Get ID of this changeset
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changeset_id_type id() const noexcept {
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return m_id;
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}
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/**
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* Set ID of this changeset
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*
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* @return Reference to changeset to make calls chainable.
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*/
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Changeset& id(changeset_id_type id) noexcept {
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m_id = id;
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return *this;
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}
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/**
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* Set ID of this changeset.
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*
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* @return Reference to object to make calls chainable.
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*/
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Changeset& id(const char* id) {
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return this->id(osmium::string_to_changeset_id(id));
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}
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/// Get user id.
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user_id_type uid() const noexcept {
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return m_uid;
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}
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/**
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* Set user id.
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*
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* @return Reference to changeset to make calls chainable.
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*/
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Changeset& uid(user_id_type uid) noexcept {
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m_uid = uid;
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return *this;
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}
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/**
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* Set user id.
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* Sets uid to 0 (anonymous) if the given uid is smaller than 0.
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*
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* @return Reference to changeset to make calls chainable.
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*/
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Changeset& uid_from_signed(signed_user_id_type uid) noexcept {
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m_uid = uid < 0 ? 0 : static_cast<user_id_type>(uid);
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return *this;
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}
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/**
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* Set user id.
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*
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* @return Reference to changeset to make calls chainable.
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*/
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Changeset& uid(const char* uid) {
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return this->uid_from_signed(string_to_user_id(uid));
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}
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/// Is this user anonymous?
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bool user_is_anonymous() const noexcept {
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return m_uid == 0;
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}
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/// Get timestamp when this changeset was created.
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osmium::Timestamp created_at() const noexcept {
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return m_created_at;
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}
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/**
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* Get timestamp when this changeset was closed.
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*
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* This will return the empty Timestamp when the
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* changeset is not yet closed.
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*/
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osmium::Timestamp closed_at() const noexcept {
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return m_closed_at;
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}
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bool open() const noexcept {
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return m_closed_at == osmium::Timestamp();
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}
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bool closed() const noexcept {
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return !open();
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}
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/**
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* Set the timestamp when this changeset was created.
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*
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* @param timestamp Timestamp
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* @return Reference to changeset to make calls chainable.
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*/
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Changeset& created_at(const osmium::Timestamp timestamp) {
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m_created_at = timestamp;
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return *this;
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}
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/**
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* Set the timestamp when this changeset was closed.
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*
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* @param timestamp Timestamp
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* @return Reference to changeset to make calls chainable.
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*/
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Changeset& closed_at(const osmium::Timestamp timestamp) {
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m_closed_at = timestamp;
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return *this;
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}
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num_changes_type num_changes() const noexcept {
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return m_num_changes;
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}
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Changeset& num_changes(num_changes_type num_changes) noexcept {
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m_num_changes = num_changes;
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return *this;
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}
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Changeset& num_changes(const char* num_changes) noexcept {
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return this->num_changes(osmium::string_to_num_changes(num_changes));
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}
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osmium::Box& bounds() noexcept {
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return m_bounds;
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}
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const osmium::Box& bounds() const noexcept {
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return m_bounds;
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}
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/// Get user name.
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const char* user() const {
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return reinterpret_cast<const char*>(data() + sizeof(Changeset));
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}
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/// Get the list of tags.
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TagList& tags() {
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return subitem_of_type<TagList>();
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}
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/// Get the list of tags.
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const TagList& tags() const {
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return subitem_of_type<const TagList>();
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}
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/**
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* Set named attribute.
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*
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* @param attr Name of the attribute (must be one of "id", "version", "changeset", "timestamp", "uid", "visible")
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* @param value Value of the attribute
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*/
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void set_attribute(const char* attr, const char* value) {
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if (!strcmp(attr, "id")) {
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id(value);
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} else if (!strcmp(attr, "num_changes")) {
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num_changes(value);
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} else if (!strcmp(attr, "created_at")) {
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created_at(osmium::Timestamp(value));
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} else if (!strcmp(attr, "closed_at")) {
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closed_at(osmium::Timestamp(value));
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} else if (!strcmp(attr, "uid")) {
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uid(value);
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}
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}
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typedef osmium::memory::CollectionIterator<Item> iterator;
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typedef osmium::memory::CollectionIterator<const Item> const_iterator;
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iterator begin() {
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return iterator(subitems_position());
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}
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iterator end() {
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return iterator(data() + padded_size());
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}
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const_iterator cbegin() const {
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return const_iterator(subitems_position());
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}
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const_iterator cend() const {
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return const_iterator(data() + padded_size());
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}
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const_iterator begin() const {
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return cbegin();
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}
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const_iterator end() const {
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return cend();
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}
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}; // class Changeset
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static_assert(sizeof(Changeset) % osmium::memory::align_bytes == 0, "Class osmium::Changeset has wrong size to be aligned properly!");
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/**
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* Changesets are equal if their IDs are equal.
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*/
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inline bool operator==(const Changeset& lhs, const Changeset& rhs) {
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return lhs.id() == rhs.id();
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}
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inline bool operator!=(const Changeset& lhs, const Changeset& rhs) {
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return ! (lhs == rhs);
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}
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/**
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* Changesets can be ordered by id.
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*/
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inline bool operator<(const Changeset& lhs, const Changeset& rhs) {
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return lhs.id() < rhs.id();
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}
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inline bool operator>(const Changeset& lhs, const Changeset& rhs) {
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return rhs < lhs;
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}
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inline bool operator<=(const Changeset& lhs, const Changeset& rhs) {
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return ! (rhs < lhs);
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}
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inline bool operator>=(const Changeset& lhs, const Changeset& rhs) {
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return ! (lhs < rhs);
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}
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} // namespace osmium
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#endif // OSMIUM_OSM_CHANGESET_HPP
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