refactor(ParticipantUrl): move participant-related values to the corresponding class.

Addressed to #927

No functional changes.

Author: php-coder

src/main/java/ru/mystamps/web/Url.java

@@ -21,6 +21,7 @@
 import ru.mystamps.web.feature.category.CategoryUrl;
 import ru.mystamps.web.feature.collection.CollectionUrl;
 import ru.mystamps.web.feature.country.CountryUrl;
+import ru.mystamps.web.feature.participant.ParticipantUrl;
 
 import java.util.HashMap;
 import java.util.Map;
@@ -65,8 +66,6 @@ public final class Url {
 	public static final String GET_IMAGE_PAGE         = "/image/{id}";
 	public static final String GET_IMAGE_PREVIEW_PAGE = "/image/preview/{id}";
 
-	public static final String ADD_PARTICIPANT_PAGE  = "/participant/add";
-	
 	public static final String FORBIDDEN_PAGE        = "/error/403";
 	public static final String NOT_FOUND_PAGE        = "/error/404";
 	public static final String INTERNAL_ERROR_PAGE   = "/error/500";
@@ -126,7 +125,7 @@ public static Map<String, String> asMap(boolean production) {
 		map.put("ADD_CATEGORY_PAGE", CategoryUrl.ADD_CATEGORY_PAGE);
 		map.put("ADD_COUNTRY_PAGE", CountryUrl.ADD_COUNTRY_PAGE);
 		map.put("ADD_IMAGE_SERIES_PAGE", ADD_IMAGE_SERIES_PAGE);
-		map.put("ADD_PARTICIPANT_PAGE", ADD_PARTICIPANT_PAGE);
+		map.put("ADD_PARTICIPANT_PAGE", ParticipantUrl.ADD_PARTICIPANT_PAGE);
 		map.put("ADD_SERIES_ASK_PAGE", ADD_SERIES_ASK_PAGE);
 		map.put("ADD_SERIES_PAGE", ADD_SERIES_PAGE);
 		map.put("AUTHENTICATION_PAGE", AccountUrl.AUTHENTICATION_PAGE);

src/main/java/ru/mystamps/web/feature/participant/ParticipantController.java

@@ -47,7 +47,7 @@ protected void initBinder(WebDataBinder binder) {
 		binder.registerCustomEditor(String.class, "url", editor);
 	}
 
-	@GetMapping(Url.ADD_PARTICIPANT_PAGE)
+	@GetMapping(ParticipantUrl.ADD_PARTICIPANT_PAGE)
 	public AddParticipantForm showForm(
 		Model model,
 		@RequestParam(name = "seller", required = false) Boolean seller,
@@ -63,7 +63,7 @@ public AddParticipantForm showForm(
 		return form;
 	}
 
-	@PostMapping(Url.ADD_PARTICIPANT_PAGE)
+	@PostMapping(ParticipantUrl.ADD_PARTICIPANT_PAGE)
 	public String processInput(Model model, @Valid AddParticipantForm form, BindingResult result) {
 		if (result.hasErrors()) {
 			List<EntityWithIdDto> groups = participantService.findAllGroups();

src/main/java/ru/mystamps/web/feature/participant/ParticipantUrl.java

@@ -0,0 +1,34 @@
+/*
+ * Copyright (C) 2009-2019 Slava Semushin <slava.semushin@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+package ru.mystamps.web.feature.participant;
+
+/**
+ * Participant-related URLs.
+ *
+ * Should be used everywhere instead of hard-coded paths.
+ *
+ * @author Slava Semushin
+ */
+public final class ParticipantUrl {
+	
+	public static final String ADD_PARTICIPANT_PAGE = "/participant/add";
+	
+	private ParticipantUrl() {
+	}
+	
+}

src/main/java/ru/mystamps/web/support/spring/security/SecurityConfig.java

@@ -47,6 +47,7 @@
 import ru.mystamps.web.feature.category.CategoryUrl;
 import ru.mystamps.web.feature.collection.CollectionUrl;
 import ru.mystamps.web.feature.country.CountryUrl;
+import ru.mystamps.web.feature.participant.ParticipantUrl;
 import ru.mystamps.web.feature.site.SiteService;
 
 import javax.servlet.Filter;
@@ -85,7 +86,7 @@ protected void configure(HttpSecurity http) throws Exception {
 			.authorizeRequests()
 				.mvcMatchers(CategoryUrl.ADD_CATEGORY_PAGE).hasAuthority(StringAuthority.CREATE_CATEGORY)
 				.mvcMatchers(CountryUrl.ADD_COUNTRY_PAGE).hasAuthority(StringAuthority.CREATE_COUNTRY)
-				.mvcMatchers(Url.ADD_PARTICIPANT_PAGE).hasAuthority(StringAuthority.ADD_PARTICIPANT)
+				.mvcMatchers(ParticipantUrl.ADD_PARTICIPANT_PAGE).hasAuthority(StringAuthority.ADD_PARTICIPANT)
 				.mvcMatchers(Url.ADD_SERIES_PAGE).hasAuthority(StringAuthority.CREATE_SERIES)
 				.mvcMatchers(Url.REQUEST_IMPORT_SERIES_PAGE).hasAuthority(StringAuthority.IMPORT_SERIES)
 				.mvcMatchers(Url.SITE_EVENTS_PAGE).hasAuthority(StringAuthority.VIEW_SITE_EVENTS)