#12 App widgets

.gitignore

@@ -0,0 +1,21 @@
+# Compiled class file
+*.class
+
+# Log file
+*.log
+
+# Package Files #
+*.jar
+*.war
+*.nar
+*.ear
+*.zip
+*.tar.gz
+*.rar
+
+# virtual machine crash logs, see http://www.java.com/en/download/help/error_hotspot.xml
+hs_err_pid*
+replay_pid*
+
+*/target/*
+.idea/*

dashboard/src/main/java/de/nbscloud/dashboard/controller/DashboardController.java

@@ -8,6 +8,7 @@ import org.springframework.ui.Model;
 import org.springframework.web.bind.annotation.GetMapping;
 
 import javax.servlet.http.HttpServletRequest;
+import java.util.stream.Collectors;
 
 @Controller
 public class DashboardController {
@@ -20,6 +21,7 @@ public class DashboardController {
     @GetMapping("/dashboard")
     public String start(Model model, HttpServletRequest httpServletRequest, String sortOrder)  {
         model.addAttribute("apps", this.appRegistry.getAll());
+        model.addAttribute("widgets", this.appRegistry.getAll().stream().flatMap(a -> a.getWidgets().stream()).collect(Collectors.toList()));
         this.webContainerSharedConfig.addDefaults(model);
 
         return "dashboard/index";

dashboard/src/main/resources/i18n/dashboard_messages.properties

@@ -0,0 +1,3 @@
+nbscloud.dashboard.greeting=Welcome to nbscloud
+
+nbscloud.dashboard.index.title=nbscloud\: dashboard

dashboard/src/main/resources/i18n/dashboard_messages_de_DE.properties

@@ -0,0 +1,3 @@
+nbscloud.dashboard.greeting=Willkommen bei nbscloud
+
+nbscloud.dashboard.index.title=nbscloud\: \u00DCbersicht

dashboard/src/main/resources/static/css/dashboard_main.css

@@ -1,3 +1,35 @@
 #content-container {
     padding-top: 2em;
 }
+
+#widgets-container {
+    padding: 2em;
+    display: flex;
+    flex-direction: row;
+    flex-wrap: wrap;
+    justify-content: space-between;
+    align-items: flex-start;
+    align-content: space-between;
+    row-gap: 2em;
+    column-gap: 2em;
+}
+
+.widget {
+    flex-grow: 1;
+    background-color: #1d2121;
+    padding: 1em;
+}
+
+.widget-heading {
+
+}
+
+.greeting {
+    display: block;
+    font-size: 1.5em;
+    margin-top: 0.83em;
+    margin-bottom: 0.83em;
+    margin-left: 0;
+    margin-right: 0;
+    font-weight: bold;
+}

dashboard/src/main/resources/templates/dashboard/index.html

@@ -14,7 +14,14 @@
 <div id="main-container">
     <div th:replace="includes/header :: header"/>
     <div id="content-container">
-        Welcome to nbscloud
+        <div id="greetings-container">
+            <p class="greeting" th:text="#{nbscloud.dashboard.greeting}" />
+        </div>
+        <div id="widgets-container">
+            <th:block th:each="widget : ${widgets}">
+                <th:block th:utext="${#servletContext.getRequestDispatcher('/' + widget.path).include(#request,#response)}"/>
+            </th:block>
+        </div>
     </div>
     <div th:replace="includes/footer :: footer"/>
 </div>

files/src/main/java/de/nbscloud/files/FileSystemService.java

@@ -12,9 +12,7 @@ import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
 import org.springframework.util.StreamUtils;
 
-import java.io.IOException;
+import java.io.*;
-import java.io.InputStream;
-import java.io.OutputStream;
 import java.nio.file.*;
 import java.nio.file.attribute.BasicFileAttributes;
 import java.time.LocalDateTime;
@@ -160,7 +158,7 @@ public class FileSystemService {
             Files.walkFileTree(targetPath, new SimpleFileVisitor<Path>() {
                 @Override
                 public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) throws IOException {
-                    if(Files.isDirectory(file)) {
+                    if (Files.isDirectory(file)) {
                         return FileVisitResult.CONTINUE;
                     }
 
@@ -207,7 +205,7 @@ public class FileSystemService {
         }
     }
 
-    private long getSize(Path name) {
+    public long getSize(Path name) {
         try {
             return Files.size(name);
         } catch (IOException e) {
@@ -215,6 +213,34 @@ public class FileSystemService {
         }
     }
 
+    public String getDevice() {
+        try {
+            final Process process = Runtime.getRuntime()
+                                           .exec(new String[]{"findmnt", "-n", "-o", "SOURCE", "--target", this.locationTracker.getBaseDirPath().toString()});
+            final String device = new BufferedReader(new InputStreamReader(process.getInputStream())).readLine();
+
+            process.destroy();
+
+            return device;
+        } catch (IOException e) {
+            throw new FileSystemServiceException("Could not get file", e);
+        }
+    }
+
+    public long getSpaceOnDevice(String device) {
+        try {
+            final Process process = Runtime.getRuntime()
+                                           .exec(new String[]{"lsblk", "-b", "-o", "SIZE", "-n", device});
+            final String space = new BufferedReader(new InputStreamReader(process.getInputStream())).readLine();
+
+            process.destroy();
+
+            return Long.parseLong(space);
+        } catch (IOException e) {
+            throw new FileSystemServiceException("Could not get file", e);
+        }
+    }
+
     public String getMimeType(String name) {
         try {
             final String detectedMimeType = this.mimeTypeDetector.detectMimeType(this.locationTracker.resolve(name));

files/src/main/java/de/nbscloud/files/FilesApp.java

@@ -1,19 +1,27 @@
 package de.nbscloud.files;
 
+import de.nbscloud.files.widget.DiskUsageWidget;
 import de.nbscloud.webcontainer.registry.App;
 import de.nbscloud.webcontainer.registry.AppRegistry;
+import de.nbscloud.webcontainer.registry.Widget;
 import org.springframework.beans.factory.InitializingBean;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Component;
 
+import java.util.Collection;
+import java.util.Collections;
+import java.util.List;
+
 @Component
 public class FilesApp implements App, InitializingBean {
+    public static final String ID = "files";
+
     @Autowired
     private AppRegistry appRegistry;
 
     @Override
     public String getId() {
-        return "files";
+        return ID;
     }
 
     @Override
@@ -31,6 +39,11 @@ public class FilesApp implements App, InitializingBean {
         return 10;
     }
 
+    @Override
+    public Collection<Widget> getWidgets() {
+        return List.of(new DiskUsageWidget());
+    }
+
     @Override
     public void afterPropertiesSet() throws Exception {
         this.appRegistry.registerApp(this);

files/src/main/java/de/nbscloud/files/controller/WidgetController.java

@@ -0,0 +1,43 @@
+package de.nbscloud.files.controller;
+
+import de.nbscloud.files.FileSystemService;
+import de.nbscloud.files.LocationTracker;
+import de.nbscloud.files.config.FilesConfig;
+import de.nbscloud.webcontainer.shared.config.WebContainerSharedConfig;
+import org.apache.commons.io.FileUtils;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Controller;
+import org.springframework.ui.Model;
+import org.springframework.web.bind.annotation.GetMapping;
+
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+import java.nio.file.Paths;
+
+@Controller
+public class WidgetController {
+    private static final Logger logger = LoggerFactory.getLogger(WidgetController.class);
+
+    @Autowired
+    private FilesConfig filesConfig;
+    @Autowired
+    private LocationTracker locationTracker;
+    @Autowired
+    private WebContainerSharedConfig webContainerSharedConfig;
+    @Autowired
+    private FileSystemService fileSystemService;
+
+    @GetMapping("files/widgets/diskUsage")
+    public String getDiskUsage(HttpServletRequest request, HttpServletResponse response, Model model) {
+        final String device = this.fileSystemService.getDevice();
+
+        model.addAttribute("baseDir", this.filesConfig.getBaseDir());
+        model.addAttribute("device", device);
+        model.addAttribute("available", this.fileSystemService.getSpaceOnDevice(device));
+        model.addAttribute("used", FileUtils.sizeOfDirectory(Paths.get(this.filesConfig.getBaseDir()).toFile()));
+
+        return "files/widgets/diskUsage :: file-disk-usage";
+    }
+}

files/src/main/java/de/nbscloud/files/widget/DiskUsageWidget.java

@@ -0,0 +1,11 @@
+package de.nbscloud.files.widget;
+
+import de.nbscloud.files.FilesApp;
+import de.nbscloud.webcontainer.registry.Widget;
+
+public class DiskUsageWidget implements Widget {
+    @Override
+    public String getPath() {
+        return FilesApp.ID + "/widgets/diskUsage";
+    }
+}

files/src/main/resources/i18n/files_messages.properties

@@ -24,6 +24,12 @@ nbscloud.files.share.submit=Share
 
 nbscloud.files.share-message=Shared file\:\u0020
 
+nbscloud.files.file-disk-usage-widget.heading=files disk usage
+nbscloud.files.file-disk-usage-widget-table.basedir=Base dir\:
+nbscloud.files.file-disk-usage-widget-table.device=Host device\:
+nbscloud.files.file-disk-usage-widget-table.available=Available\:
+nbscloud.files.file-disk-usage-widget-table.used=Used\:
+
 nbscloud.files.delete.success=File deleted
 nbscloud.files.rename.success=File renamed
 nbscloud.files.created.file.success=File created

files/src/main/resources/i18n/files_messages_de_DE.properties

@@ -24,6 +24,12 @@ nbscloud.files.share.submit=Teilen
 
 nbscloud.files.share-message=Datei geteilt\:\u0020
 
+nbscloud.files.file-disk-usage-widget.heading=Dateien Festplattennutzung
+nbscloud.files.file-disk-usage-widget-table.basedir=Verzeichnis\:
+nbscloud.files.file-disk-usage-widget-table.device=Ger\u00E4t\:
+nbscloud.files.file-disk-usage-widget-table.available=Verf\u00FCgbar\:
+nbscloud.files.file-disk-usage-widget-table.used=Belegt\:
+
 nbscloud.files.delete.success=Datei gel\u00F6scht
 nbscloud.files.rename.success=Datei verschoben/umbenannt
 nbscloud.files.created.file.success=Datei erstellt

files/src/main/resources/static/css/files_main.css

@@ -175,3 +175,7 @@
 #gallery-link {
     text-decoration: none;
 }
+
+#file-disk-usage-widget {
+    display: block;
+}

files/src/main/resources/templates/files/widgets/diskUsage.html

@@ -0,0 +1,21 @@
+<div id="file-disk-usage-widget" class="widget" th:fragment="file-disk-usage">
+    <p class="widget-heading" th:text="#{nbscloud.files.file-disk-usage-widget.heading}"/>
+    <table id="file-disk-usage-widget-table">
+        <tr>
+            <td th:text="#{nbscloud.files.file-disk-usage-widget-table.basedir}" />
+            <td th:text="${baseDir}" />
+        </tr>
+        <tr>
+            <td th:text="#{nbscloud.files.file-disk-usage-widget-table.device}" />
+            <td th:text="${device}" />
+        </tr>
+        <tr>
+            <td th:text="#{nbscloud.files.file-disk-usage-widget-table.available}" />
+            <td th:text="${@filesFormatter.formatSize(available)}" />
+        </tr>
+        <tr>
+            <td th:text="#{nbscloud.files.file-disk-usage-widget-table.used}" />
+            <td th:text="${@filesFormatter.formatSize(used)}" />
+        </tr>
+    </table>
+</div>

web-container-registry/src/main/java/de/nbscloud/webcontainer/registry/App.java

@@ -1,5 +1,8 @@
 package de.nbscloud.webcontainer.registry;
 
+import java.util.Collection;
+import java.util.Collections;
+
 public interface App {
     // New app:
     //  1) Create module
@@ -15,4 +18,8 @@ public interface App {
     String getStartPath();
 
     int getIndex();
+
+    default Collection<Widget> getWidgets() {
+        return Collections.EMPTY_LIST;
+    }
 }

web-container-registry/src/main/java/de/nbscloud/webcontainer/registry/Widget.java

@@ -0,0 +1,5 @@
+package de.nbscloud.webcontainer.registry;
+
+public interface Widget {
+    String getPath();
+}

web-container/src/main/resources/config/application.properties

@@ -9,7 +9,7 @@ info.build.group=@project.groupId@
 info.build.artifact=@project.artifactId@
 info.build.version=@project.version@
 
-spring.messages.basename=i18n/container_messages,i18n/files_messages
+spring.messages.basename=i18n/container_messages,i18n/files_messages,i18n/dashboard_messages
 
 spring.servlet.multipart.max-file-size=-1
 spring.servlet.multipart.max-request-size=-1