introduce com.intellij.systemProperty EP

GitOrigin-RevId: 8271cf55a5d335221a6685d4a762f01334ba2d6a

platform/platform-impl/src/com/intellij/idea/IdeaApplication.java

@@ -1,7 +1,10 @@
 // Copyright 2000-2019 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
 package com.intellij.idea;
 
-import com.intellij.diagnostic.*;
+import com.intellij.diagnostic.Activity;
+import com.intellij.diagnostic.LoadingPhase;
+import com.intellij.diagnostic.ParallelActivity;
+import com.intellij.diagnostic.StartUpMeasurer;
 import com.intellij.diagnostic.StartUpMeasurer.Phases;
 import com.intellij.featureStatistics.fusCollectors.LifecycleUsageTriggerCollector;
 import com.intellij.ide.*;
@@ -17,10 +20,7 @@ import com.intellij.openapi.components.ServiceManager;
 import com.intellij.openapi.diagnostic.Logger;
 import com.intellij.openapi.project.Project;
 import com.intellij.openapi.ui.DialogEarthquakeShaker;
-import com.intellij.openapi.util.Comparing;
-import com.intellij.openapi.util.IconLoader;
-import com.intellij.openapi.util.Pair;
-import com.intellij.openapi.util.SystemInfo;
+import com.intellij.openapi.util.*;
 import com.intellij.openapi.util.registry.Registry;
 import com.intellij.openapi.util.registry.RegistryKeyBean;
 import com.intellij.openapi.util.text.StringUtil;
@@ -156,6 +156,10 @@ public final class IdeaApplication {
     return pluginDescriptorsFuture
       .thenCompose(pluginDescriptors -> {
         CompletableFuture<Void> future = CompletableFuture.runAsync(() -> {
+          Activity sysActivity = ParallelActivity.PREPARE_APP_INIT.start("init system properties");
+          SystemPropertyBean.initSystemProperties();
+          sysActivity.end();
+
           Activity activity = ParallelActivity.PREPARE_APP_INIT.start("add registry keys");
           RegistryKeyBean.addKeysFromPlugins();
           activity.end();

platform/platform-impl/src/com/intellij/openapi/util/SystemPropertyBean.java

@@ -0,0 +1,41 @@
+// Copyright 2000-2019 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
+package com.intellij.openapi.util;
+
+import com.intellij.openapi.extensions.ExtensionPointName;
+import com.intellij.openapi.extensions.PluginAware;
+import com.intellij.openapi.extensions.PluginDescriptor;
+import com.intellij.util.xmlb.annotations.Attribute;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
+/**
+ * @author gregsh
+ */
+public class SystemPropertyBean implements PluginAware {
+  public static final ExtensionPointName<SystemPropertyBean> EP_NAME = ExtensionPointName.create("com.intellij.systemProperty");
+
+  private PluginDescriptor myPluginDescriptor;
+
+  public static void initSystemProperties() {
+    for (SystemPropertyBean bean : EP_NAME.getExtensionList()) {
+      if (System.getProperty(bean.name) != null) continue;
+      System.setProperty(bean.name, bean.value);
+    }
+  }
+
+  @Attribute("name")
+  public String name;
+
+  @Attribute("value")
+  public String value;
+
+  @Override
+  public void setPluginDescriptor(@NotNull PluginDescriptor pluginDescriptor) {
+    myPluginDescriptor = pluginDescriptor;
+  }
+
+  @Nullable
+  public PluginDescriptor getPluginDescriptor() {
+    return myPluginDescriptor;
+  }
+}

platform/platform-resources/src/META-INF/PlatformExtensionPoints.xml

@@ -344,6 +344,7 @@
       <with attribute="implementationClass" implements="com.intellij.injected.editor.InjectedFileChangesHandlerProvider"/>
     </extensionPoint>
 
+    <extensionPoint name="systemProperty" beanClass="com.intellij.openapi.util.SystemPropertyBean"/>
     <extensionPoint name="registryKey" beanClass="com.intellij.openapi.util.registry.RegistryKeyBean"/>
 
     <extensionPoint name="fileBreadcrumbsCollector" interface="com.intellij.codeInsight.breadcrumbs.FileBreadcrumbsCollector" area="IDEA_PROJECT"/>