Implement BookStorePages class, primarily for Thymeleaf

Signed-off-by: Pekka Helenius <fincer89@hotmail.com>

bookstore/src/main/java/com/fjordtek/bookstore/service/session/BookStorePages.java

@@ -0,0 +1,81 @@
+//Pekka Helenius <fincer89@hotmail.com>, Fjordtek 2020
+
+package com.fjordtek.bookstore.service.session;
+
+import javax.annotation.PostConstruct;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.core.env.Environment;
+import org.springframework.stereotype.Component;
+
+/**
+*
+* This class gets Spring Environment key property values from
+* Spring property sources and inserts them into publicly
+* accessible class attributes. Attributes are related to
+* application web pages.
+* <p>
+* The attribute values of this class are primarily used
+* in Thymeleaf HTML template files.
+*
+* @author Pekka Helenius
+*/
+
+@Component("Pages")
+public class BookStorePages {
+
+	@Autowired
+	private Environment env;
+
+	public String
+	INDEX,
+	LIST,
+	ADD,
+	DELETE,
+	EDIT,
+	LOGIN,
+	LOGOUT,
+	ERROR,
+	AUTHERROR,
+	APIREF,
+	JSON,
+	JSONBOOK,
+	JSONLIST,
+	H2CONSOLE,
+	REST,
+	RESTAUTHORS,
+	RESTBOOKS,
+	RESTCATEGORIES
+	;
+
+	@PostConstruct
+	private void constructPages() {
+		this.INDEX          = env.getProperty("page.url.index");
+		this.LIST           = env.getProperty("page.url.list");
+		this.ADD            = env.getProperty("page.url.add");
+		this.DELETE         = env.getProperty("page.url.delete");
+		this.EDIT           = env.getProperty("page.url.edit");
+
+		this.LOGIN          = env.getProperty("page.url.login");
+		this.LOGOUT         = env.getProperty("page.url.logout");
+
+		this.ERROR          = env.getProperty("page.url.error");
+		this.AUTHERROR      = env.getProperty("page.url.autherror");
+
+		this.APIREF         = env.getProperty("page.url.apiref");
+
+		this.JSON           = env.getProperty("page.url.json");
+		this.JSONBOOK       = env.getProperty("page.url.json.book");
+		this.JSONLIST       = env.getProperty("page.url.json.list");
+
+		this.H2CONSOLE      = env.getProperty("spring.h2.console.path");
+
+		this.REST           = env.getProperty("spring.data.rest.base-path");
+		this.RESTAUTHORS    = env.getProperty("page.url.restapi.authors");
+		this.RESTBOOKS      = env.getProperty("page.url.restapi.books");
+		this.RESTCATEGORIES = env.getProperty("page.url.restapi.categories");
+	}
+
+}
+
+