src/org/redkale/net/http/HttpResponse.java

@@ -14,6 +14,7 @@ import java.nio.file.*;
 import java.text.*;
 import java.util.*;
 import java.util.concurrent.atomic.AtomicLong;
+import java.util.logging.Level;
 import org.redkale.convert.json.JsonConvert;
 import org.redkale.net.*;
 import org.redkale.util.AnyValue.DefaultAnyValue;
@@ -200,6 +201,26 @@ public class HttpResponse extends Response<HttpContext, HttpRequest> {
         return this;
     }
 
+    /**
+     * 创建AsyncHandler实例，将非字符串对象以JSON格式输出，字符串以文本输出
+     *
+     * @return AsyncHandler
+     */
+    public AsyncHandler createAsyncHandler() {
+        return AsyncHandler.create((v, a) -> {
+            if (v instanceof org.redkale.service.RetResult) {
+                finishJson((org.redkale.service.RetResult) v);
+            } else if (v instanceof CharSequence) {
+                finish(String.valueOf(v));
+            } else {
+                finishJson(v);
+            }
+        }, (t, a) -> {
+            request.getContext().getLogger().log(Level.WARNING, "Servlet occur, forece to close channel. request = " + request, t);
+            finish(500, null);
+        });
+    }
+
     /**
      * 将对象以JSON格式输出
      *
@@ -457,7 +478,7 @@ public class HttpResponse extends Response<HttpContext, HttpRequest> {
      * @param attachment 异步回调参数
      * @param handler    异步回调函数
      */
-    public <A> void sendBody(ByteBuffer buffer, A attachment, CompletionHandler<Integer, A> handler) {
+    public <A> void sendBody(ByteBuffer buffer, A attachment, AsyncHandler<Integer, A> handler) {
         if (!this.headsended) {
             if (this.contentLength < 0) this.contentLength = buffer == null ? 0 : buffer.remaining();
             ByteBuffer headbuf = createHeader();
@@ -796,7 +817,7 @@ public class HttpResponse extends Response<HttpContext, HttpRequest> {
         this.bufferHandler = bufferHandler;
     }
 
-    protected final class TransferFileHandler implements CompletionHandler<Integer, ByteBuffer> {
+    protected final class TransferFileHandler implements AsyncHandler<Integer, ByteBuffer> {
 
         private final AsynchronousFileChannel filechannel;
 

src/org/redkale/net/http/WebSocketServlet.java

@@ -8,7 +8,6 @@ package org.redkale.net.http;
 import java.io.*;
 import java.net.*;
 import java.nio.*;
-import java.nio.channels.*;
 import java.security.*;
 import java.util.*;
 import java.util.logging.*;
@@ -128,7 +127,7 @@ public abstract class WebSocketServlet extends HttpServlet {
         response.setHeader("Connection", "Upgrade");
         response.addHeader("Upgrade", "websocket");
         response.addHeader("Sec-WebSocket-Accept", key);
-        response.sendBody((ByteBuffer) null, null, new CompletionHandler<Integer, Void>() {
+        response.sendBody((ByteBuffer) null, null, new AsyncHandler<Integer, Void>() {
 
             @Override
             public void completed(Integer result, Void attachment) {

src/org/redkale/service/CacheSourceService.java

@@ -192,9 +192,10 @@ public class CacheSourceService<K extends Serializable, V extends Object> implem
     }
 
     @Override
-    public void exists(final AsyncHandler<Boolean, K> handler, @RpcAttachment final K key) {
+    public boolean exists(final AsyncHandler<Boolean, K> handler, @RpcAttachment final K key) {
         boolean rs = exists(key);
         if (handler != null) handler.completed(rs, key);
+        return rs;
     }
 
     @Override
@@ -208,9 +209,10 @@ public class CacheSourceService<K extends Serializable, V extends Object> implem
     }
 
     @Override
-    public void get(final AsyncHandler<V, K> handler, @RpcAttachment final K key) {
+    public V get(final AsyncHandler<V, K> handler, @RpcAttachment final K key) {
         V rs = get(key);
         if (handler != null) handler.completed(rs, key);
+        return rs;
     }
 
     @Override
@@ -227,9 +229,10 @@ public class CacheSourceService<K extends Serializable, V extends Object> implem
     }
 
     @Override
-    public void getAndRefresh(final AsyncHandler<V, K> handler, @RpcAttachment final K key, final int expireSeconds) {
+    public V getAndRefresh(final AsyncHandler<V, K> handler, @RpcAttachment final K key, final int expireSeconds) {
         V rs = getAndRefresh(key, expireSeconds);
         if (handler != null) handler.completed(rs, key);
+        return rs;
     }
 
     @Override
@@ -324,9 +327,10 @@ public class CacheSourceService<K extends Serializable, V extends Object> implem
     }
 
     @Override
-    public void getCollection(final AsyncHandler<Collection<V>, K> handler, @RpcAttachment final K key) {
+    public Collection<V> getCollection(final AsyncHandler<Collection<V>, K> handler, @RpcAttachment final K key) {
         Collection<V> rs = getCollection(key);
         if (handler != null) handler.completed(rs, key);
+        return rs;
     }
 
     @Override
@@ -335,9 +339,10 @@ public class CacheSourceService<K extends Serializable, V extends Object> implem
     }
 
     @Override
-    public void getCollectionAndRefresh(final AsyncHandler<Collection<V>, K> handler, @RpcAttachment final K key, final int expireSeconds) {
+    public Collection<V> getCollectionAndRefresh(final AsyncHandler<Collection<V>, K> handler, @RpcAttachment final K key, final int expireSeconds) {
         Collection<V> rs = getCollectionAndRefresh(key, expireSeconds);
         if (handler != null) handler.completed(rs, key);
+        return rs;
     }
 
     @Override

src/org/redkale/source/CacheSource.java

@@ -53,11 +53,11 @@ public interface CacheSource<K extends Serializable, V extends Object> {
     public void removeSetItem(final K key, final V value);
 
     //----------------------异步版---------------------------------
-    public void exists(final AsyncHandler<Boolean, K> handler, final K key);
+    public boolean exists(final AsyncHandler<Boolean, K> handler, final K key);
 
-    public void get(final AsyncHandler<V, K> handler, final K key);
+    public V get(final AsyncHandler<V, K> handler, final K key);
 
-    public void getAndRefresh(final AsyncHandler<V, K> handler, final K key, final int expireSeconds);
+    public V getAndRefresh(final AsyncHandler<V, K> handler, final K key, final int expireSeconds);
 
     public void refresh(final AsyncHandler<Void, K> handler, final K key, final int expireSeconds);
 
@@ -69,9 +69,9 @@ public interface CacheSource<K extends Serializable, V extends Object> {
 
     public void remove(final AsyncHandler<Void, K> handler, final K key);
 
-    public void getCollection(final AsyncHandler<Collection<V>, K> handler, final K key);
+    public Collection<V> getCollection(final AsyncHandler<Collection<V>, K> handler, final K key);
 
-    public void getCollectionAndRefresh(final AsyncHandler<Collection<V>, K> handler, final K key, final int expireSeconds);
+    public Collection<V> getCollectionAndRefresh(final AsyncHandler<Collection<V>, K> handler, final K key, final int expireSeconds);
 
     public void appendListItem(final AsyncHandler<Void, K> handler, final K key, final V value);
 
@@ -81,7 +81,8 @@ public interface CacheSource<K extends Serializable, V extends Object> {
 
     public void removeSetItem(final AsyncHandler<Void, K> handler, final K key, final V value);
 
-    default void isOpen(final AsyncHandler<Boolean, Void> handler) {
+    default boolean isOpen(final AsyncHandler<Boolean, Void> handler) {
         if (handler != null) handler.completed(Boolean.TRUE, null);
+        return true;
     }
 }

test/org/redkale/test/http/HttpResponseDesc.java

@@ -9,11 +9,11 @@ import java.io.*;
 import java.lang.reflect.*;
 import java.net.*;
 import java.nio.*;
-import java.nio.channels.*;
 import java.util.*;
 import java.util.function.BiConsumer;
 import org.redkale.convert.json.*;
 import org.redkale.net.http.*;
+import org.redkale.util.AsyncHandler;
 
 /**
  *
@@ -59,8 +59,11 @@ public interface HttpResponseDesc {
     public HttpResponse skipHeader();
 
     //异步输出指定内容
-    public <A> void sendBody(ByteBuffer buffer, A attachment, CompletionHandler<Integer, A> handler);
+    public <A> void sendBody(ByteBuffer buffer, A attachment, AsyncHandler<Integer, A> handler);
-
+    
+    //创建AsyncHandler实例，将非字符串对象以JSON格式输出，字符串以文本输出
+    public AsyncHandler createAsyncHandler();
+    
     //关闭HTTP连接，如果是keep-alive则不强制关闭
     public void finish();