Add a service provider for JackConfigProvider

Change-Id: Ib599f5b012aec9d15c71fd314fe859628e855c00

2 files changed, 42 insertions, 2 deletions

diff --git a/jack-api/src/com/android/jack/api/example/Main.java b/jack-api/src/com/android/jack/api/example/SampleWithClassLoader.java
index fe6d7ab..f2b3040 100644
--- a/jack-api/src/com/android/jack/api/example/Main.java
+++ b/jack-api/src/com/android/jack/api/example/SampleWithClassLoader.java
@@ -34,14 +34,15 @@ import java.net.URLClassLoader;
 /**
  * STOPSHIP
  */
-public class Main {
+public class SampleWithClassLoader {
+
   public static void main(String[] args) throws MalformedURLException, ClassNotFoundException,
       SecurityException, NoSuchMethodException, IllegalArgumentException, InstantiationException,
       IllegalAccessException, InvocationTargetException {
     ClassLoader loader =
         URLClassLoader.newInstance(new URL[] {new File(
             "<replace_with_a_path_to_jack.jar>").toURI().toURL()},
-            Main.class.getClassLoader());
+            SampleWithClassLoader.class.getClassLoader());
 
     Class<? extends JackConfigProvider> confProviderClass =
         Class.forName(JackConfigProvider.CLASS_NAME, true, loader).asSubclass(
diff --git a/jack-api/src/com/android/jack/api/example/SampleWithServiceLoader.java b/jack-api/src/com/android/jack/api/example/SampleWithServiceLoader.java
new file mode 100644
index 0000000..995bd9d
--- /dev/null
+++ b/jack-api/src/com/android/jack/api/example/SampleWithServiceLoader.java
@@ -0,0 +1,39 @@
+/*
+ * Copyright (C) 2015 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.jack.api.example;
+
+import com.android.jack.api.JackConfigProvider;
+
+import java.util.NoSuchElementException;
+import java.util.ServiceLoader;
+
+/**
+ * Sample of Jack api usage based on a service provider.
+ * This sample requires jack.jar on classpath.
+ */
+public class SampleWithServiceLoader {
+
+  public static void main(String[] args) throws SecurityException, IllegalArgumentException {
+    ServiceLoader<JackConfigProvider> serviceLoader = ServiceLoader.load(JackConfigProvider.class);
+    try {
+      JackConfigProvider confProvider = serviceLoader.iterator().next();
+      System.out.println("Jack version: " + confProvider.getCompilerVersion());
+    } catch (NoSuchElementException e) {
+      System.out.println("Check that jack.jar is on classpath");
+    }
+  }
+}