Initial commit 🎉

fbshipit-source-id: b6fc29740c6875d2e78953b8a7123890a67930f2
Co-authored-by: Sebastian McKenzie <sebmck@fb.com>
Co-authored-by: John Knox <jknox@fb.com>
Co-authored-by: Emil Sjölander <emilsj@fb.com>
Co-authored-by: Pritesh Nandgaonkar <prit91@fb.com>

android/plugins/console/JavascriptEnvironment.java

@@ -0,0 +1,58 @@
+/*
+ *  Copyright (c) 2018-present, Facebook, Inc.
+ *
+ *  This source code is licensed under the MIT license found in the LICENSE
+ *  file in the root directory of this source tree.
+ *
+ */
+package com.facebook.sonar.plugins.console;
+
+import com.facebook.sonar.plugins.console.iface.ScriptingEnvironment;
+import java.util.HashMap;
+import java.util.Map;
+import org.mozilla.javascript.Context;
+import org.mozilla.javascript.ContextFactory;
+
+public class JavascriptEnvironment implements ScriptingEnvironment {
+
+  private final Map<String, Object> mBoundVariables;
+  private final ContextFactory mContextFactory;
+
+  public JavascriptEnvironment() {
+    mBoundVariables = new HashMap<>();
+    mContextFactory =
+        new ContextFactory() {
+          @Override
+          public boolean hasFeature(Context cx, int featureIndex) {
+            return featureIndex == Context.FEATURE_ENHANCED_JAVA_ACCESS;
+          }
+        };
+  }
+
+  @Override
+  public JavascriptSession startSession() {
+    return new JavascriptSession(mContextFactory, mBoundVariables);
+  }
+
+  /**
+   * Method for other plugins to register objects to a name, so that they can be accessed in all
+   * console sessions.
+   *
+   * @param name The variable name to bind the object to.
+   * @param object The reference to bind.
+   */
+  @Override
+  public void registerGlobalObject(String name, Object object) {
+    if (mBoundVariables.containsKey(name)) {
+      throw new IllegalStateException(
+          String.format(
+              "Variable %s is already reserved for %s", name, mBoundVariables.get(name)));
+    }
+    mBoundVariables.put(name, object);
+  }
+
+  @Override
+  public boolean isEnabled() {
+    return true;
+  }
+}