add interface generation

2 files changed, 37 insertions, 2 deletions

diff --git a/lib/java/gradle/generateTestThrift.gradle b/lib/java/gradle/generateTestThrift.gradle
index 924dd0d0f..d5bc3afaf 100644
--- a/lib/java/gradle/generateTestThrift.gradle
+++ b/lib/java/gradle/generateTestThrift.gradle
@@ -91,7 +91,7 @@ task generateBeanJava(group: 'Build') {
 
     ext.outputBuffer = new ByteArrayOutputStream()
 
-    thriftCompile(it, 'JavaBeansTest.thrift', 'java:beans,nocamel', genBeanSrc)
+    thriftCompile(it, 'JavaBeansTest.thrift', 'java:beans,nocamel,future_iface', genBeanSrc)
 }
 
 task generateReuseJava(group: 'Build') {
@@ -100,7 +100,7 @@ task generateReuseJava(group: 'Build') {
 
     ext.outputBuffer = new ByteArrayOutputStream()
 
-    thriftCompile(it, 'FullCamelTest.thrift', 'java:fullcamel', genFullCamelSrc)
+    thriftCompile(it, 'FullCamelTest.thrift', 'java:fullcamel,future_iface', genFullCamelSrc)
 }
 
 task generateFullCamelJava(group: 'Build') {
diff --git a/lib/java/src/org/apache/thrift/async/AsyncMethodFutureAdapter.java b/lib/java/src/org/apache/thrift/async/AsyncMethodFutureAdapter.java
new file mode 100644
index 000000000..0bee3a7cf
--- /dev/null
+++ b/lib/java/src/org/apache/thrift/async/AsyncMethodFutureAdapter.java
@@ -0,0 +1,35 @@
+package org.apache.thrift.async;
+
+import java.util.concurrent.CompletableFuture;
+
+/**
+ * A simple adapter that bridges {@link AsyncMethodCallback} with {@link CompletableFuture}-returning style clients.
+ * Compiler generated code will invoke this adapter to implement {@code FutureClient}s.
+ *
+ * @param <T> return type (can be {@link Void}).
+ */
+public final class AsyncMethodFutureAdapter<T> implements AsyncMethodCallback<T> {
+
+    private AsyncMethodFutureAdapter() {
+    }
+
+    public static <T> AsyncMethodFutureAdapter<T> create() {
+        return new AsyncMethodFutureAdapter<>();
+    }
+
+    private final CompletableFuture<T> future = new CompletableFuture<>();
+
+    public CompletableFuture<T> getFuture() {
+        return future;
+    }
+
+    @Override
+    public void onComplete(T response) {
+        future.complete(response);
+    }
+
+    @Override
+    public void onError(Exception exception) {
+        future.completeExceptionally(exception);
+    }
+}