mv com/google/domain/registry google/registry

This change renames directories in preparation for the great package
rename. The repository is now in a broken state because the code
itself hasn't been updated. However this should ensure that git
correctly preserves history for each file.

java/google/registry/config/RegistryEnvironment.java

@@ -0,0 +1,90 @@
+// Copyright 2016 The Domain Registry Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.google.domain.registry.config;
+
+import com.google.common.annotations.VisibleForTesting;
+
+import javax.annotation.Nullable;
+
+/** Registry environments. */
+public enum RegistryEnvironment {
+
+  /** Production environment. */
+  PRODUCTION,
+
+  /** Development environment. */
+  ALPHA,
+
+  /** Load/Backup/Restore Testing environment. */
+  CRASH,
+
+  /** Local machine environment. */
+  LOCAL,
+
+  /** Quality Assurance environment. */
+  QA,
+
+  /** Sandbox environment. */
+  SANDBOX,
+
+  /**
+   * Unit testing environment.
+   *
+   * <p>This is the default enum value. This is because it's non-trivial to configure the system
+   * property that specifies the environment in our unit tests.
+   *
+   * <p>Do not use this environment outside of unit tests.
+   */
+  UNITTEST;
+
+  /** Returns environment configured by system property {@value #PROPERTY}. */
+  public static RegistryEnvironment get() {
+    return valueOf(System.getProperty(PROPERTY, UNITTEST.name()).toUpperCase());
+  }
+
+  /**
+   * Returns configuration for this Domain Registry environment.
+   *
+   * <p><b>WARNING:</b> Do not store this value to a static field, otherwise you won't be able to
+   * override it for testing. You should instead store the environment object to a static field.
+   */
+  public RegistryConfig config() {
+    if (configOverride != null) {
+      return configOverride;
+    } else if (this == UNITTEST) {
+      return testingConfig;
+    } else {
+      return config;
+    }
+  }
+
+  /** Globally override registry configuration from within a unit test. */
+  @VisibleForTesting
+  public static void overrideConfigurationForTesting(@Nullable RegistryConfig newConfig) {
+    configOverride = newConfig;
+  }
+
+  @Nullable
+  private static RegistryConfig configOverride;
+
+  // TODO(b/19247780) Use true dependency injection for this. In the mean time, if you're not
+  // Google, you'll need to change this to include your own config class implementation at compile
+  // time.
+  private static final RegistryConfig testingConfig = new TestRegistryConfig();
+  private final RegistryConfig config = new TestRegistryConfig();
+
+  /** System property for configuring which environment we should use. */
+  public static final String PROPERTY = "com.google.domain.registry.environment";
+}