src/org/redkale/util/AsyncHandler.java

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+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package org.redkale.util;
+
+import java.util.function.BiConsumer;
+import java.nio.channels.CompletionHandler;
+import java.util.function.*;
+
+/**
+ * 异步回调函数
+ *
+ *
+ * <p>
+ * 详情见: https://redkale.org
+ *
+ * @deprecated 使用 java.nio.channels.CompletionHandler 代替
+ * @author zhangjx
+ * @param <V> 结果对象的泛型
+ * @param <A> 附件对象的泛型
+ */
+@Deprecated
+public interface AsyncHandler<V, A> extends CompletionHandler<V, A> {
+
+    /**
+     * 创建 AsyncHandler 对象
+     *
+     * @param <V>     结果对象的泛型
+     * @param <A>     附件对象的泛型
+     * @param success 成功的回调函数
+     * @param fail    失败的回调函数
+     *
+     * @return AsyncHandler
+     */
+    public static <V, A> AsyncHandler<V, A> create(final BiConsumer<V, A> success, final BiConsumer<Throwable, A> fail) {
+        return new AsyncHandler<V, A>() {
+            @Override
+            public void completed(V result, A attachment) {
+                if (success != null) success.accept(result, attachment);
+            }
+
+            @Override
+            public void failed(Throwable exc, A attachment) {
+                if (fail != null) fail.accept(exc, attachment);
+            }
+        };
+    }
+
+    /**
+     * 创建没有返回结果的 AsyncHandler 对象
+     *
+     * @param <A>     附件对象的泛型
+     * @param success 成功的回调函数
+     * @param fail    失败的回调函数
+     *
+     * @return AsyncHandler
+     */
+    public static <A> AsyncHandler<Void, A> create(final Consumer<A> success, final BiConsumer<Throwable, A> fail) {
+        return new AsyncHandler<Void, A>() {
+            @Override
+            public void completed(Void result, A attachment) {
+                if (success != null) success.accept(attachment);
+            }
+
+            @Override
+            public void failed(Throwable exc, A attachment) {
+                if (fail != null) fail.accept(exc, attachment);
+            }
+        };
+    }
+
+    /**
+     * 创建没有附件对象的 AsyncNoResultHandler 对象
+     *
+     * @param <V>     结果对象的泛型
+     * @param success 成功的回调函数
+     * @param fail    失败的回调函数
+     *
+     * @return AsyncHandler
+     */
+    public static <V> AsyncHandler<V, Void> create(final Consumer<V> success, final Consumer<Throwable> fail) {
+        return new AsyncHandler<V, Void>() {
+            @Override
+            public void completed(V result, Void attachment) {
+                if (success != null) success.accept(result);
+            }
+
+            @Override
+            public void failed(Throwable exc, Void attachment) {
+                if (fail != null) fail.accept(exc);
+            }
+        };
+    }
+
+}