enh: add sendReloadCommand to Deployer for browser reload functionality

Author: lprimak

src/main/java/com/flowlogix/maven/plugins/Deployer.java

@@ -120,6 +120,26 @@ private CommandResult sendCommand(String command, Map<String, String> parameters
         return response.statusCode() == 200 ? CommandResult.SUCCESS : CommandResult.ERROR;
     }
 
+    @SuppressWarnings("checkstyle:MagicNumber")
+    @SneakyThrows({IOException.class, InterruptedException.class})
+    public CommandResult sendReloadCommand(String applicationUrl,
+                                           @NonNull BiConsumer<String, CommandResponse> responseCallback) {
+        HttpResponse<Void> response;
+        try {
+            HttpClient client = HttpClient.newHttpClient();
+            HttpRequest request = HttpRequest.newBuilder()
+                    .uri(URI.create("%s/flowlogix/reload".formatted(applicationUrl)))
+                    .POST(HttpRequest.BodyPublishers.noBody())
+                    .build();
+            response = client.send(request, HttpResponse.BodyHandlers.discarding());
+        } catch (ConnectException e) {
+            responseCallback.accept("reload", null);
+            return CommandResult.NO_CONNECTION;
+        }
+        responseCallback.accept("reload", new CommandResponse(response.statusCode(), null));
+        return response.statusCode() == 200 ? CommandResult.SUCCESS : CommandResult.ERROR;
+    }
+
     @SuppressWarnings("checkstyle:MagicNumber")
     void printResponse(String command, CommandResponse response) {
         if (response == null) {

src/main/java/com/flowlogix/maven/plugins/DevModeMojo.java

@@ -48,6 +48,8 @@ public class DevModeMojo extends CommonDevMojo {
     private final Path explodedWarDir = Paths.get(project.getBuild().getDirectory(), project.getBuild().getFinalName());
     @Getter(lazy = true)
     private final Path srcMainDir = Paths.get(project.getBasedir().getAbsolutePath(), "src", "main");
+    @Getter(lazy = true)
+    private final String appURL = computeApplicationURL();
 
     @Override
     @SneakyThrows(IOException.class)
@@ -79,11 +81,10 @@ private void enableOrDeploy() throws IOException {
             }
             deployer.sendDeployCommand(deployer::printResponse, 0);
         }
-        String httpUrl = payaraAminURL.replaceFirst(":\\d+$", ":" + payaraHttpPort);
-        var browseURL = URI.create("%s/%s".formatted(httpUrl, project.getBuild().getFinalName()));
-        getLog().info("Application URL at " + browseURL);
+
+        getLog().info("Application URL at " + getAppURL());
         try {
-            Desktop.getDesktop().browse(browseURL);
+            Desktop.getDesktop().browse(URI.create(getAppURL()));
         } catch (UnsupportedOperationException e) {
             getLog().debug("Cannot open browser" , e);
         }
@@ -101,6 +102,9 @@ private void onChange(Set<Path> modifiedFiles) {
                 deployer.sendEnableCommand(deployer::printResponse);
             }
         }
+        if (deployer.sendReloadCommand(getAppURL(), deployer::printResponse) == CommandResult.ERROR) {
+            getLog().warn("Reload failed");
+        }
     }
 
     private boolean compileSources() {
@@ -120,4 +124,9 @@ private boolean isSourceCode(Path path) {
                 .resolve("src/main").relativize(path);
         return CODE_CONTAINING_SRC_DIRS.stream().anyMatch(relativePath::startsWith);
     }
+
+    private String computeApplicationURL() {
+        String httpUrl = payaraAminURL.replaceFirst(":\\d+$", ":" + payaraHttpPort);
+        return "%s/%s".formatted(httpUrl, project.getBuild().getFinalName());
+    }
 }