Web interface: API управления главным меню

webinterface/build.gradle

@@ -1,5 +1,5 @@
 group = 'asys'
-version = '0.10-SNAPSHOT'
+version = '0.11-SNAPSHOT'
 
 buildscript {
     repositories {
@@ -26,7 +26,8 @@ bundle {
     instructions << [
             'Bundle-Name': 'ASys Web interface',
             'Bundle-Activator': 'asys.webinterface.Activator',
-            'Import-Package': '*'
+            'Import-Package': '*',
+            'Export-Package': 'asys.webinterface.api'
     ]
     exclude group: 'com.google.code.gson'
     exclude group: 'commons-io'

webinterface/src/main/java/asys/webinterface/Activator.java

@@ -4,20 +4,33 @@
  */
 package asys.webinterface;
 
+import asys.webinterface.api.MainMenu;
 import org.osgi.framework.BundleActivator;
 import org.osgi.framework.BundleContext;
+import org.osgi.framework.ServiceRegistration;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 public class Activator implements BundleActivator {
+    private final Logger logger = LoggerFactory.getLogger(Activator.class);
+    private ServiceRegistration<?> serviceMainMenu;
     private WebServer webServer;
 
     @Override
     public void start(BundleContext context) throws Exception {
-        webServer = new WebServer(context);
+        MainMenuImpl mainMenu = new MainMenuImpl();
+        mainMenu.addItem("Модули", "#");
+
+        logger.trace("Register service: {}", MainMenu.class);
+        serviceMainMenu = context.registerService(MainMenu.class, mainMenu, null);
+
+        webServer = new WebServer(context, mainMenu);
         webServer.start(8778);
     }
 
     @Override
     public void stop(BundleContext context) throws Exception {
         webServer.stop();
+        serviceMainMenu.unregister();
     }
 }

webinterface/src/main/java/asys/webinterface/AppJsHandler.java

@@ -0,0 +1,39 @@
+/*
+ * DmitriyMX <dimon550@gmail.com>
+ * 2017-03-12
+ */
+package asys.webinterface;
+
+import com.sun.net.httpserver.HttpExchange;
+import com.sun.net.httpserver.HttpHandler;
+import org.apache.commons.io.IOUtils;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.io.IOException;
+import java.io.OutputStream;
+
+public class AppJsHandler implements HttpHandler {
+    private final Logger logger = LoggerFactory.getLogger(AppJsHandler.class);
+    private String doneAppJs;
+    private int size;
+
+    public AppJsHandler(MainMenuImpl mainMenu) {
+        try {
+            String appJs = IOUtils.toString(getClass().getResourceAsStream("/app.js"), "UTF-8");
+            doneAppJs = appJs.replace("<{mainMenuItems}>", mainMenu.toReacJS());
+            size = doneAppJs.getBytes(IndexHandler.defaultCharset).length;
+        } catch (IOException e) {
+            logger.error("app.js", e);
+        }
+    }
+
+    @Override
+    public void handle(HttpExchange httpExchange) throws IOException {
+        httpExchange.getResponseHeaders().add("Context-Type","text/javascript;charset=utf-8");
+        httpExchange.sendResponseHeaders(200, size);
+        OutputStream responseBody = httpExchange.getResponseBody();
+        responseBody.write(doneAppJs.getBytes(IndexHandler.defaultCharset));
+        responseBody.close();
+    }
+}

webinterface/src/main/java/asys/webinterface/IndexHandler.java

@@ -7,19 +7,15 @@ package asys.webinterface;
 import com.sun.net.httpserver.HttpExchange;
 import com.sun.net.httpserver.HttpHandler;
 import org.apache.commons.io.IOUtils;
-import org.osgi.framework.BundleContext;
 
 import java.io.*;
 import java.nio.charset.Charset;
 
 public class IndexHandler implements HttpHandler {
-    private static final Charset defaultCharset = Charset.forName("UTF-8");
+    static final Charset defaultCharset = Charset.forName("UTF-8");
-    private BundleContext context;
     private String htmlTemplate;
 
-    public IndexHandler(BundleContext context) {
+    public IndexHandler() {
-        this.context = context;
-
         try {
             InputStream inputStream = getClass().getResourceAsStream("/index.html");
             htmlTemplate = IOUtils.toString(inputStream, "UTF-8");

webinterface/src/main/java/asys/webinterface/MainMenuImpl.java

@@ -0,0 +1,38 @@
+/*
+ * DmitriyMX <dimon550@gmail.com>
+ * 2017-03-11
+ */
+package asys.webinterface;
+
+import asys.webinterface.api.MainMenu;
+
+import java.util.HashMap;
+import java.util.Map;
+import java.util.StringJoiner;
+
+public class MainMenuImpl implements MainMenu {
+    private Map<String, String> items = new HashMap<>();
+
+    @Override
+    public void addItem(String title, String href) {
+        items.put(title, href);
+    }
+
+    public String toReacJS() {
+        StringJoiner sj = new StringJoiner(",");
+        for(Map.Entry<String, String> entry : items.entrySet()) {
+            sj.add(String.format(
+                    "ce(MainMenuItem, {title: '%s', href: '%s'})",
+                    entry.getKey().replace("'","\\'"), entry.getValue().replace("'","\\'")
+            ));
+        }
+        return sj.toString();
+    }
+
+    @Override
+    public String toString() {
+        return "MainMenuImpl{" +
+                "items=" + items +
+                '}';
+    }
+}

webinterface/src/main/java/asys/webinterface/WebServer.java

@@ -13,14 +13,17 @@ import java.net.InetSocketAddress;
 public class WebServer {
     private HttpServer server;
     private BundleContext context;
+    private MainMenuImpl mainMenu;
 
-    public WebServer(BundleContext context) {
+    public WebServer(BundleContext context, MainMenuImpl mainMenu) {
         this.context = context;
+        this.mainMenu = mainMenu;
     }
 
     public void start(int port) throws IOException {
         server = HttpServer.create(new InetSocketAddress(port), 0);
-        server.createContext("/", new IndexHandler(context));
+        server.createContext("/", new IndexHandler());
+        server.createContext("/app.js", new AppJsHandler(mainMenu));
         server.createContext("/static", new StaticHandler());
         server.createContext("/ajax", new AjaxHandler(context));
         server.start();

webinterface/src/main/java/asys/webinterface/api/MainMenu.java

@@ -0,0 +1,9 @@
+/*
+ * DmitriyMX <dimon550@gmail.com>
+ * 2017-03-11
+ */
+package asys.webinterface.api;
+
+public interface MainMenu {
+    void addItem(String title, String href);
+}

webinterface/src/main/resources/app.js

@@ -34,7 +34,7 @@ var App = React.createClass({
         }
         else {
             return (ce('div', null,
-                ce(Navbar),
+                ce(Navbar, {items: [<{mainMenuItems}>]}),
                 ce('div', {className: 'container', style: {marginTop: '60px'}},
                     ce(Panel, {title: 'Модули'},
                         ce(BundleTable, null, this.tableRows)

webinterface/src/main/resources/index.html

@@ -15,7 +15,7 @@
     <script src="https://cdnjs.cloudflare.com/ajax/libs/react/15.4.2/react-dom.min.js"></script>
     <script src="/static/fetch.js"></script>
     <script src="/static/components.js"></script>
-    <script src="/static/app.js"></script>
+    <script src="/app.js"></script>
 </head>
 <body>
     <div id="app"></div>