Filter un-exist resources in app service combo box

Author: Flanker32

PluginsAndFeatures/azure-toolkit-for-intellij/src/com/microsoft/azure/toolkit/intellij/appservice/AppServiceComboBox.java

@@ -10,6 +10,9 @@
 import com.intellij.ui.SimpleListCellRenderer;
 import com.intellij.ui.components.fields.ExtendableTextComponent;
 import com.microsoft.azure.toolkit.intellij.common.AzureComboBox;
+import com.microsoft.azure.toolkit.lib.appservice.model.JavaVersion;
+import com.microsoft.azure.toolkit.lib.appservice.model.Runtime;
+import com.microsoft.azure.toolkit.lib.appservice.service.IAppService;
 import com.microsoft.azure.toolkit.lib.webapp.WebAppService;
 import com.microsoft.azuretools.azurecommons.helpers.NotNull;
 import com.microsoft.azuretools.azurecommons.helpers.Nullable;
@@ -19,6 +22,7 @@
 import javax.swing.*;
 import java.util.List;
 import java.util.Objects;
+import java.util.Optional;
 
 public abstract class AppServiceComboBox<T extends AppServiceComboBoxModel> extends AzureComboBox<T> {
 
@@ -71,6 +75,17 @@ protected String getItemText(final Object item) {
         }
     }
 
+    protected boolean isJavaAppService(IAppService appService) {
+        try {
+            return Optional.ofNullable(appService.getRuntime()).map(Runtime::getJavaVersion)
+                    .map(javaVersion -> !Objects.equals(javaVersion, JavaVersion.OFF))
+                    .orElse(false);
+        } catch (final RuntimeException e) {
+            // app service may have been removed while parsing, return false in this case
+            return false;
+        }
+    }
+
     protected abstract void createResource();
 
     public static class AppComboBoxRender extends SimpleListCellRenderer {

PluginsAndFeatures/azure-toolkit-for-intellij/src/com/microsoft/azure/toolkit/intellij/function/FunctionAppComboBox.java

@@ -9,7 +9,6 @@
 import com.microsoft.azure.toolkit.intellij.appservice.AppServiceComboBox;
 import com.microsoft.azure.toolkit.lib.Azure;
 import com.microsoft.azure.toolkit.lib.appservice.AzureAppService;
-import com.microsoft.azure.toolkit.lib.appservice.model.JavaVersion;
 import com.microsoft.azure.toolkit.lib.common.operation.AzureOperation;
 import com.microsoft.azuretools.azurecommons.helpers.NotNull;
 import com.microsoft.tooling.msservices.components.DefaultLoader;
@@ -44,7 +43,7 @@ protected void createResource() {
     )
     protected List<FunctionAppComboBoxModel> loadAppServiceModels() {
         return Azure.az(AzureAppService.class).functionApps().parallelStream()
-                .filter(functionApp -> functionApp.getRuntime().getJavaVersion() != JavaVersion.OFF)
+                .filter(this::isJavaAppService)
                 .map(FunctionAppComboBoxModel::new)
                 .sorted((app1, app2) -> app1.getAppName().compareToIgnoreCase(app2.getAppName()))
                 .collect(Collectors.toList());

PluginsAndFeatures/azure-toolkit-for-intellij/src/com/microsoft/azure/toolkit/intellij/webapp/WebAppComboBox.java

@@ -49,10 +49,10 @@ protected void createResource() {
     )
     protected List<WebAppComboBoxModel> loadAppServiceModels() {
         final List<IWebApp> webApps = Azure.az(AzureAppService.class).webapps(false);
-        return webApps.stream()
-                      .filter(webApp -> webApp.getRuntime().getJavaVersion() != null && webApp.getRuntime().getJavaVersion() != JavaVersion.OFF)
-                      .sorted((a, b) -> a.name().compareToIgnoreCase(b.name()))
-                      .map(WebAppComboBoxModel::new)
-                      .collect(Collectors.toList());
+        return webApps.stream().parallel()
+                .filter(this::isJavaAppService)
+                .sorted((a, b) -> a.name().compareToIgnoreCase(b.name()))
+                .map(WebAppComboBoxModel::new)
+                .collect(Collectors.toList());
     }
 }