Merge "Add RootComponentGenerator to auto-generate root components for different dialer variants."

1 files changed, 48 insertions, 0 deletions

diff --git a/java/com/android/dialer/rootcomponentgenerator/processor/RootComponentUtils.java b/java/com/android/dialer/rootcomponentgenerator/processor/RootComponentUtils.java
new file mode 100644
index 000000000..889297154
--- /dev/null
+++ b/java/com/android/dialer/rootcomponentgenerator/processor/RootComponentUtils.java
@@ -0,0 +1,48 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * 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.android.dialer.rootcomponentgenerator.processor;
+
+import com.squareup.javapoet.JavaFile;
+import com.squareup.javapoet.TypeSpec;
+import java.io.IOException;
+import javax.annotation.processing.ProcessingEnvironment;
+
+/**
+ * Contains a basic method writing java file to a curtain package. ProcessingEnvironment is needed.
+ */
+public abstract class RootComponentUtils {
+  /**
+   * The place where the generator puts metadata files storing reference for {@link
+   * RootComponentGeneratingStep}.
+   */
+  static final String METADATA_PACKAGE_NAME = "com.android.dialer.rootcomponentgenerator.metadata";
+
+  static final String GENERATED_COMPONENT_PREFIX = "Gen";
+
+  static void writeJavaFile(
+      ProcessingEnvironment processingEnv, String packageName, TypeSpec typeSpec) {
+    try {
+      JavaFile.builder(packageName, typeSpec)
+          .skipJavaLangImports(true)
+          .build()
+          .writeTo(processingEnv.getFiler());
+    } catch (IOException e) {
+      System.out.println(e);
+      throw new RuntimeException(e);
+    }
+  }
+}