[ 
https://issues.apache.org/jira/browse/SCB-483?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16445115#comment-16445115
 ] 

ASF GitHub Bot commented on SCB-483:
------------------------------------

liubao68 closed pull request #653: [SCB-483] Springmvc rest vertx file download
URL: https://github.com/apache/incubator-servicecomb-java-chassis/pull/653
 
 
   

This is a PR merged from a forked repository.
As GitHub hides the original diff on merge, it is displayed below for
the sake of provenance:

As this is a foreign pull request (from a fork), the diff is supplied
below (as it won't show otherwise due to GitHub magic):

diff --git 
a/common/common-javassist/src/test/java/org/apache/servicecomb/common/javassist/TestJavassistUtils.java
 
b/common/common-javassist/src/test/java/org/apache/servicecomb/common/javassist/TestJavassistUtils.java
index 73c4c7ff1..a69eb0fd7 100644
--- 
a/common/common-javassist/src/test/java/org/apache/servicecomb/common/javassist/TestJavassistUtils.java
+++ 
b/common/common-javassist/src/test/java/org/apache/servicecomb/common/javassist/TestJavassistUtils.java
@@ -152,7 +152,7 @@ public void singleWrapperInt() throws Exception {
   public void multiWrapper() throws Exception {
     ClassConfig classConfig = new ClassConfig();
     classConfig.setClassName("cse.ut.multi.Wrapper");
-    classConfig.addField("intField", (Type) int.class);
+    classConfig.addField("intField", int.class);
     classConfig.addField("strField", String.class);
 
     JavassistUtils.genMultiWrapperInterface(classConfig);
@@ -161,7 +161,7 @@ public void multiWrapper() throws Exception {
 
     MultiWrapper instance = (MultiWrapper) wrapperClass.newInstance();
     instance.writeFields(new Object[] {100, "test"});
-    Object[] fieldValues = (Object[]) instance.readFields();
+    Object[] fieldValues = instance.readFields();
     Assert.assertEquals(100, fieldValues[0]);
     Assert.assertEquals("test", fieldValues[1]);
   }
diff --git 
a/common/common-protobuf/src/main/java/org/apache/servicecomb/codec/protobuf/utils/ProtobufSchemaUtils.java
 
b/common/common-protobuf/src/main/java/org/apache/servicecomb/codec/protobuf/utils/ProtobufSchemaUtils.java
index f1c985fed..8fd1e89dd 100644
--- 
a/common/common-protobuf/src/main/java/org/apache/servicecomb/codec/protobuf/utils/ProtobufSchemaUtils.java
+++ 
b/common/common-protobuf/src/main/java/org/apache/servicecomb/codec/protobuf/utils/ProtobufSchemaUtils.java
@@ -178,7 +178,7 @@ public static WrapSchema 
getOrCreateArgsSchema(OperationMeta operationMeta) {
     return getOrCreateSchema(type, () -> {
       if (!isArgsNeedWrap(method)) {
         // 可以直接使用
-        Class<?> cls = (Class<?>) method.getParameterTypes()[0];
+        Class<?> cls = method.getParameterTypes()[0];
         Schema<?> schema = RuntimeSchema.createFrom(cls);
         return WrapSchemaFactory.createSchema(schema, WrapType.ARGS_NOT_WRAP);
       }
diff --git 
a/common/common-rest/src/main/java/org/apache/servicecomb/common/rest/AbstractRestInvocation.java
 
b/common/common-rest/src/main/java/org/apache/servicecomb/common/rest/AbstractRestInvocation.java
index 3dfb5cc62..9a3769b88 100644
--- 
a/common/common-rest/src/main/java/org/apache/servicecomb/common/rest/AbstractRestInvocation.java
+++ 
b/common/common-rest/src/main/java/org/apache/servicecomb/common/rest/AbstractRestInvocation.java
@@ -17,11 +17,13 @@
 
 package org.apache.servicecomb.common.rest;
 
+import java.io.IOException;
 import java.nio.charset.StandardCharsets;
 import java.util.Collections;
 import java.util.List;
 import java.util.Map;
 import java.util.Map.Entry;
+import java.util.concurrent.CompletableFuture;
 
 import javax.ws.rs.core.HttpHeaders;
 import javax.ws.rs.core.Response.Status;
@@ -31,6 +33,7 @@
 import 
org.apache.servicecomb.common.rest.codec.produce.ProduceProcessorManager;
 import org.apache.servicecomb.common.rest.definition.RestOperationMeta;
 import org.apache.servicecomb.common.rest.filter.HttpServerFilter;
+import 
org.apache.servicecomb.common.rest.filter.HttpServerFilterBeforeSendResponseExecutor;
 import org.apache.servicecomb.common.rest.locator.OperationLocator;
 import org.apache.servicecomb.common.rest.locator.ServicePathManager;
 import org.apache.servicecomb.core.Const;
@@ -194,18 +197,11 @@ protected void sendResponseQuietly(Response response) {
       LOGGER.error("Failed to send rest response, operation:{}.",
           invocation.getMicroserviceQualifiedName(),
           e);
-    } finally {
-      requestEx.getAsyncContext().complete();
-      // if failed to locate path, then will not create invocation
-      // TODO: statistics this case
-      if (invocation != null) {
-        invocation.onFinish(response);
-      }
     }
   }
 
   @SuppressWarnings("deprecation")
-  protected void sendResponse(Response response) throws Exception {
+  protected void sendResponse(Response response) {
     if (response.getHeaders().getHeaderMap() != null) {
       for (Entry<String, List<Object>> entry : 
response.getHeaders().getHeaderMap().entrySet()) {
         for (Object value : entry.getValue()) {
@@ -216,14 +212,41 @@ protected void sendResponse(Response response) throws 
Exception {
       }
     }
     responseEx.setStatus(response.getStatusCode(), response.getReasonPhrase());
-    responseEx.setContentType(produceProcessor.getName() + "; charset=utf-8");
     responseEx.setAttribute(RestConst.INVOCATION_HANDLER_RESPONSE, response);
     responseEx.setAttribute(RestConst.INVOCATION_HANDLER_PROCESSOR, 
produceProcessor);
 
-    for (HttpServerFilter filter : httpServerFilters) {
-      filter.beforeSendResponse(invocation, responseEx);
+    executeHttpServerFilters(response);
+  }
+
+  protected void executeHttpServerFilters(Response response) {
+    HttpServerFilterBeforeSendResponseExecutor exec =
+        new HttpServerFilterBeforeSendResponseExecutor(httpServerFilters, 
invocation, responseEx);
+    CompletableFuture<Void> future = exec.run();
+    future.whenComplete((v, e) -> {
+      onExecuteHttpServerFiltersFinish(response, e);
+    });
+  }
+
+  protected void onExecuteHttpServerFiltersFinish(Response response, Throwable 
e) {
+    if (e != null) {
+      LOGGER.error("Failed to execute HttpServerFilters, operation:{}.",
+          invocation.getMicroserviceQualifiedName(),
+          e);
     }
 
-    responseEx.flushBuffer();
+    try {
+      responseEx.flushBuffer();
+    } catch (IOException flushException) {
+      LOGGER.error("Failed to flush rest response, operation:{}.",
+          invocation.getMicroserviceQualifiedName(),
+          flushException);
+    }
+
+    requestEx.getAsyncContext().complete();
+    // if failed to locate path, then will not create invocation
+    // TODO: statistics this case
+    if (invocation != null) {
+      invocation.onFinish(response);
+    }
   }
 }
diff --git 
a/common/common-rest/src/main/java/org/apache/servicecomb/common/rest/definition/path/PathVarParamWriter.java
 
b/common/common-rest/src/main/java/org/apache/servicecomb/common/rest/definition/path/PathVarParamWriter.java
index c38b038c2..95659e8dc 100644
--- 
a/common/common-rest/src/main/java/org/apache/servicecomb/common/rest/definition/path/PathVarParamWriter.java
+++ 
b/common/common-rest/src/main/java/org/apache/servicecomb/common/rest/definition/path/PathVarParamWriter.java
@@ -29,6 +29,6 @@ public PathVarParamWriter(RestParam param) {
 
   @Override
   public void write(StringBuilder builder, Object[] args) throws Exception {
-    builder.append((Object) getParamValue(args));
+    builder.append(getParamValue(args));
   }
 }
diff --git 
a/common/common-rest/src/main/java/org/apache/servicecomb/common/rest/filter/HttpServerFilter.java
 
b/common/common-rest/src/main/java/org/apache/servicecomb/common/rest/filter/HttpServerFilter.java
index af0f6b1c8..8e56e9956 100644
--- 
a/common/common-rest/src/main/java/org/apache/servicecomb/common/rest/filter/HttpServerFilter.java
+++ 
b/common/common-rest/src/main/java/org/apache/servicecomb/common/rest/filter/HttpServerFilter.java
@@ -17,6 +17,8 @@
 
 package org.apache.servicecomb.common.rest.filter;
 
+import java.util.concurrent.CompletableFuture;
+
 import org.apache.servicecomb.core.Invocation;
 import org.apache.servicecomb.core.definition.OperationMeta;
 import org.apache.servicecomb.foundation.vertx.http.HttpServletRequestEx;
@@ -30,10 +32,30 @@ default boolean needCacheRequest(OperationMeta 
operationMeta) {
     return false;
   }
 
-  // if finished, then return a none null response
-  // if return a null response, then sdk will call next 
filter.afterReceiveRequest
+  /**
+   * @return if finished, then return a none null response<br>
+   * if return a null response, then sdk will call next 
filter.afterReceiveRequest
+   */
   Response afterReceiveRequest(Invocation invocation, HttpServletRequestEx 
requestEx);
 
-  // invocation maybe null
-  void beforeSendResponse(Invocation invocation, HttpServletResponseEx 
responseEx);
+  /**
+   * @param invocation maybe null
+   */
+  default CompletableFuture<Void> beforeSendResponseAsync(Invocation 
invocation, HttpServletResponseEx responseEx) {
+    CompletableFuture<Void> future = new CompletableFuture<>();
+    try {
+      beforeSendResponse(invocation, responseEx);
+      future.complete(null);
+    } catch (Throwable e) {
+      future.completeExceptionally(e);
+    }
+    return future;
+  }
+
+  /**
+   * @param invocation maybe null
+   */
+  default void beforeSendResponse(Invocation invocation, HttpServletResponseEx 
responseEx) {
+
+  }
 }
diff --git 
a/common/common-rest/src/main/java/org/apache/servicecomb/common/rest/filter/HttpServerFilterBeforeSendResponseExecutor.java
 
b/common/common-rest/src/main/java/org/apache/servicecomb/common/rest/filter/HttpServerFilterBeforeSendResponseExecutor.java
new file mode 100644
index 000000000..b07485a0f
--- /dev/null
+++ 
b/common/common-rest/src/main/java/org/apache/servicecomb/common/rest/filter/HttpServerFilterBeforeSendResponseExecutor.java
@@ -0,0 +1,78 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You 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 org.apache.servicecomb.common.rest.filter;
+
+import java.util.List;
+import java.util.concurrent.CompletableFuture;
+
+import org.apache.servicecomb.core.Invocation;
+import org.apache.servicecomb.foundation.vertx.http.HttpServletResponseEx;
+
+public class HttpServerFilterBeforeSendResponseExecutor {
+  private List<HttpServerFilter> httpServerFilters;
+
+  private Invocation invocation;
+
+  private HttpServletResponseEx responseEx;
+
+  private int currentIndex;
+
+  private CompletableFuture<Void> future = new CompletableFuture<Void>();
+
+  public HttpServerFilterBeforeSendResponseExecutor(List<HttpServerFilter> 
httpServerFilters, Invocation invocation,
+      HttpServletResponseEx responseEx) {
+    this.httpServerFilters = httpServerFilters;
+    this.invocation = invocation;
+    this.responseEx = responseEx;
+  }
+
+  public CompletableFuture<Void> run() {
+    doRun();
+
+    return future;
+  }
+
+  protected CompletableFuture<Void> safeInvoke(HttpServerFilter 
httpServerFilter) {
+    try {
+      return httpServerFilter.beforeSendResponseAsync(invocation, responseEx);
+    } catch (Throwable e) {
+      CompletableFuture<Void> eFuture = new CompletableFuture<Void>();
+      eFuture.completeExceptionally(e);
+      return eFuture;
+    }
+  }
+
+  protected void doRun() {
+    if (currentIndex == httpServerFilters.size()) {
+      future.complete(null);
+      return;
+    }
+
+    HttpServerFilter httpServerFilter = httpServerFilters.get(currentIndex);
+    currentIndex++;
+
+    CompletableFuture<Void> stepFuture = safeInvoke(httpServerFilter);
+    stepFuture.whenComplete((v, e) -> {
+      if (e == null) {
+        doRun();
+        return;
+      }
+
+      future.completeExceptionally(e);
+    });
+  }
+}
diff --git 
a/common/common-rest/src/main/java/org/apache/servicecomb/common/rest/filter/inner/ServerRestArgsFilter.java
 
b/common/common-rest/src/main/java/org/apache/servicecomb/common/rest/filter/inner/ServerRestArgsFilter.java
index b690cbf66..c806fc0ce 100644
--- 
a/common/common-rest/src/main/java/org/apache/servicecomb/common/rest/filter/inner/ServerRestArgsFilter.java
+++ 
b/common/common-rest/src/main/java/org/apache/servicecomb/common/rest/filter/inner/ServerRestArgsFilter.java
@@ -17,6 +17,10 @@
 
 package org.apache.servicecomb.common.rest.filter.inner;
 
+import java.util.concurrent.CompletableFuture;
+
+import javax.servlet.http.Part;
+
 import org.apache.servicecomb.common.rest.RestConst;
 import org.apache.servicecomb.common.rest.codec.RestCodec;
 import org.apache.servicecomb.common.rest.codec.produce.ProduceProcessor;
@@ -50,7 +54,7 @@ public Response afterReceiveRequest(Invocation invocation, 
HttpServletRequestEx
   }
 
   @Override
-  public void beforeSendResponse(Invocation invocation, HttpServletResponseEx 
responseEx) {
+  public CompletableFuture<Void> beforeSendResponseAsync(Invocation 
invocation, HttpServletResponseEx responseEx) {
     Response response = (Response) 
responseEx.getAttribute(RestConst.INVOCATION_HANDLER_RESPONSE);
     ProduceProcessor produceProcessor =
         (ProduceProcessor) 
responseEx.getAttribute(RestConst.INVOCATION_HANDLER_PROCESSOR);
@@ -59,13 +63,21 @@ public void beforeSendResponse(Invocation invocation, 
HttpServletResponseEx resp
       body = ((InvocationException) body).getErrorData();
     }
 
+    if (Part.class.isInstance(body)) {
+      return responseEx.sendPart((Part) body);
+    }
+
+    responseEx.setContentType(produceProcessor.getName() + "; charset=utf-8");
+
+    CompletableFuture<Void> future = new CompletableFuture<Void>();
     try (BufferOutputStream output = new 
BufferOutputStream(Unpooled.compositeBuffer())) {
       produceProcessor.encodeResponse(output, body);
 
       responseEx.setBodyBuffer(output.getBuffer());
+      future.complete(null);
     } catch (Throwable e) {
-      throw ExceptionFactory.convertProducerException(e);
+      
future.completeExceptionally(ExceptionFactory.convertProducerException(e));
     }
+    return future;
   }
-
 }
diff --git 
a/common/common-rest/src/test/java/org/apache/servicecomb/common/rest/TestAbstractRestInvocation.java
 
b/common/common-rest/src/test/java/org/apache/servicecomb/common/rest/TestAbstractRestInvocation.java
index 72d0b1344..811ea47f3 100644
--- 
a/common/common-rest/src/test/java/org/apache/servicecomb/common/rest/TestAbstractRestInvocation.java
+++ 
b/common/common-rest/src/test/java/org/apache/servicecomb/common/rest/TestAbstractRestInvocation.java
@@ -29,6 +29,7 @@
 import 
org.apache.servicecomb.common.rest.codec.produce.ProduceProcessorManager;
 import org.apache.servicecomb.common.rest.definition.RestOperationMeta;
 import org.apache.servicecomb.common.rest.filter.HttpServerFilter;
+import org.apache.servicecomb.common.rest.filter.HttpServerFilterBaseForTest;
 import org.apache.servicecomb.common.rest.locator.OperationLocator;
 import org.apache.servicecomb.common.rest.locator.ServicePathManager;
 import org.apache.servicecomb.core.Const;
@@ -403,6 +404,7 @@ protected void doInvoke() {
       @Override
       protected void sendResponse(Response response) {
         result.value = response;
+        super.sendResponse(response);
       }
     };
     initRestInvocation();
@@ -443,7 +445,7 @@ public void 
sendResponseStatusAndContentTypeAndHeader(@Mocked Response response)
         response.getReasonPhrase();
         result = "reason";
         response.getResult();
-        result = new Error("stop");
+        result = "result";
       }
     };
 
@@ -480,12 +482,8 @@ void setContentType(String type) {
 
     initRestInvocation();
 
-    try {
-      restInvocation.sendResponse(response);
-      Assert.fail("must throw exception");
-    } catch (Error e) {
-      Assert.assertEquals(expected, result);
-    }
+    restInvocation.sendResponse(response);
+    Assert.assertEquals(expected, result);
   }
 
   @Test
@@ -648,12 +646,12 @@ void setBodyBuffer(Buffer bodyBuffer) {
       }
     }.getMockInstance();
 
-    HttpServerFilter filter = new MockUp<HttpServerFilter>() {
-      @Mock
-      void beforeSendResponse(Invocation invocation, HttpServletResponseEx 
responseEx) {
+    HttpServerFilter filter = new HttpServerFilterBaseForTest() {
+      @Override
+      public void beforeSendResponse(Invocation invocation, 
HttpServletResponseEx responseEx) {
         buffer.appendString("-filter");
       }
-    }.getMockInstance();
+    };
 
     initRestInvocation();
     List<HttpServerFilter> httpServerFilters = 
SPIServiceUtils.loadSortedService(HttpServerFilter.class);
diff --git 
a/common/common-rest/src/test/java/org/apache/servicecomb/common/rest/filter/HttpServerFilterBaseForTest.java
 
b/common/common-rest/src/test/java/org/apache/servicecomb/common/rest/filter/HttpServerFilterBaseForTest.java
new file mode 100644
index 000000000..24ccd95a8
--- /dev/null
+++ 
b/common/common-rest/src/test/java/org/apache/servicecomb/common/rest/filter/HttpServerFilterBaseForTest.java
@@ -0,0 +1,33 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You 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 org.apache.servicecomb.common.rest.filter;
+
+import org.apache.servicecomb.core.Invocation;
+import org.apache.servicecomb.foundation.vertx.http.HttpServletRequestEx;
+import org.apache.servicecomb.swagger.invocation.Response;
+
+public class HttpServerFilterBaseForTest implements HttpServerFilter {
+  @Override
+  public int getOrder() {
+    return 0;
+  }
+
+  @Override
+  public Response afterReceiveRequest(Invocation invocation, 
HttpServletRequestEx requestEx) {
+    return null;
+  }
+}
diff --git 
a/common/common-rest/src/test/java/org/apache/servicecomb/common/rest/filter/TestHttpServerFilter.java
 
b/common/common-rest/src/test/java/org/apache/servicecomb/common/rest/filter/TestHttpServerFilter.java
new file mode 100644
index 000000000..38c1f97c7
--- /dev/null
+++ 
b/common/common-rest/src/test/java/org/apache/servicecomb/common/rest/filter/TestHttpServerFilter.java
@@ -0,0 +1,57 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You 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 org.apache.servicecomb.common.rest.filter;
+
+import java.util.concurrent.CompletableFuture;
+import java.util.concurrent.ExecutionException;
+
+import org.apache.servicecomb.core.Invocation;
+import org.apache.servicecomb.foundation.vertx.http.HttpServletResponseEx;
+import org.hamcrest.Matchers;
+import org.junit.Assert;
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.rules.ExpectedException;
+
+public class TestHttpServerFilter {
+  @Rule
+  public ExpectedException expectedException = ExpectedException.none();
+
+  @Test
+  public void asyncSucc() throws InterruptedException, ExecutionException {
+    HttpServerFilter filter = new HttpServerFilterBaseForTest();
+
+    CompletableFuture<Void> future = filter.beforeSendResponseAsync(null, 
null);
+    Assert.assertNull(future.get());
+  }
+
+  @Test
+  public void asyncFailed() throws InterruptedException, ExecutionException {
+    HttpServerFilter filter = new HttpServerFilterBaseForTest() {
+      @Override
+      public void beforeSendResponse(Invocation invocation, 
HttpServletResponseEx responseEx) {
+        throw new Error("");
+      }
+    };
+
+    expectedException.expect(ExecutionException.class);
+    expectedException.expectCause(Matchers.instanceOf(Error.class));
+
+    CompletableFuture<Void> future = filter.beforeSendResponseAsync(null, 
null);
+    future.get();
+  }
+}
diff --git 
a/common/common-rest/src/test/java/org/apache/servicecomb/common/rest/filter/TestHttpServerFilterBeforeSendResponseExecutor.java
 
b/common/common-rest/src/test/java/org/apache/servicecomb/common/rest/filter/TestHttpServerFilterBeforeSendResponseExecutor.java
new file mode 100644
index 000000000..0708f8fd1
--- /dev/null
+++ 
b/common/common-rest/src/test/java/org/apache/servicecomb/common/rest/filter/TestHttpServerFilterBeforeSendResponseExecutor.java
@@ -0,0 +1,78 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You 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 org.apache.servicecomb.common.rest.filter;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.concurrent.CompletableFuture;
+import java.util.concurrent.ExecutionException;
+
+import org.apache.servicecomb.core.Invocation;
+import org.apache.servicecomb.foundation.vertx.http.HttpServletResponseEx;
+import org.hamcrest.Matchers;
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.rules.ExpectedException;
+
+import mockit.Mocked;
+
+public class TestHttpServerFilterBeforeSendResponseExecutor {
+  @Mocked
+  Invocation invocation;
+
+  @Mocked
+  HttpServletResponseEx responseEx;
+
+  List<HttpServerFilter> httpServerFilters = new ArrayList<>();
+
+  HttpServerFilterBeforeSendResponseExecutor executor =
+      new HttpServerFilterBeforeSendResponseExecutor(httpServerFilters, 
invocation, responseEx);
+
+  @Rule
+  public ExpectedException expectedException = ExpectedException.none();
+
+  @Before
+  public void setup() {
+    httpServerFilters.add(new HttpServerFilterBaseForTest());
+  }
+
+  @Test
+  public void runSucc() throws InterruptedException, ExecutionException {
+    CompletableFuture<Void> result = executor.run();
+
+    Assert.assertNull(result.get());
+  }
+
+  @Test
+  public void runFail() throws InterruptedException, ExecutionException {
+    httpServerFilters.add(new HttpServerFilterBaseForTest() {
+      @Override
+      public CompletableFuture<Void> beforeSendResponseAsync(Invocation 
invocation, HttpServletResponseEx responseEx) {
+        throw new Error("");
+      }
+    });
+
+    CompletableFuture<Void> result = executor.run();
+
+    expectedException.expect(ExecutionException.class);
+    expectedException.expectCause(Matchers.instanceOf(Error.class));
+
+    result.get();
+  }
+}
diff --git 
a/common/common-rest/src/test/java/org/apache/servicecomb/common/rest/filter/inner/TestServerRestArgsFilter.java
 
b/common/common-rest/src/test/java/org/apache/servicecomb/common/rest/filter/inner/TestServerRestArgsFilter.java
new file mode 100644
index 000000000..8a322e07d
--- /dev/null
+++ 
b/common/common-rest/src/test/java/org/apache/servicecomb/common/rest/filter/inner/TestServerRestArgsFilter.java
@@ -0,0 +1,73 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You 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 org.apache.servicecomb.common.rest.filter.inner;
+
+import java.util.concurrent.CompletableFuture;
+
+import javax.servlet.http.Part;
+
+import org.apache.servicecomb.common.rest.RestConst;
+import org.apache.servicecomb.core.Invocation;
+import org.apache.servicecomb.foundation.vertx.http.HttpServletResponseEx;
+import org.apache.servicecomb.swagger.invocation.Response;
+import org.junit.Assert;
+import org.junit.Test;
+
+import mockit.Expectations;
+import mockit.Mock;
+import mockit.MockUp;
+import mockit.Mocked;
+
+public class TestServerRestArgsFilter {
+  @Mocked
+  Invocation invocation;
+
+  @Mocked
+  HttpServletResponseEx responseEx;
+
+  @Mocked
+  Response response;
+
+  @Mocked
+  Part part;
+
+  boolean invokedSendPart;
+
+  ServerRestArgsFilter filter = new ServerRestArgsFilter();
+
+  @Test
+  public void asyncBeforeSendResponse_part() {
+    new Expectations() {
+      {
+        responseEx.getAttribute(RestConst.INVOCATION_HANDLER_RESPONSE);
+        result = response;
+        response.getResult();
+        result = part;
+      }
+    };
+    new MockUp<HttpServletResponseEx>(responseEx) {
+      @Mock
+      CompletableFuture<Void> sendPart(Part body) {
+        invokedSendPart = true;
+        return null;
+      }
+    };
+
+    Assert.assertNull(filter.beforeSendResponseAsync(invocation, responseEx));
+    Assert.assertTrue(invokedSendPart);
+  }
+}
diff --git 
a/demo/demo-springmvc/springmvc-server/src/main/java/org/apache/servicecomb/demo/springmvc/server/DownloadSchema.java
 
b/demo/demo-springmvc/springmvc-server/src/main/java/org/apache/servicecomb/demo/springmvc/server/DownloadSchema.java
new file mode 100644
index 000000000..0fbd6ee69
--- /dev/null
+++ 
b/demo/demo-springmvc/springmvc-server/src/main/java/org/apache/servicecomb/demo/springmvc/server/DownloadSchema.java
@@ -0,0 +1,79 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You 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 org.apache.servicecomb.demo.springmvc.server;
+
+import java.io.ByteArrayInputStream;
+import java.io.File;
+import java.io.IOException;
+import java.io.InputStream;
+import java.nio.charset.StandardCharsets;
+
+import org.apache.servicecomb.provider.rest.common.RestSchema;
+import org.springframework.core.io.ByteArrayResource;
+import org.springframework.core.io.Resource;
+import org.springframework.http.HttpHeaders;
+import org.springframework.http.MediaType;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+
+import io.swagger.annotations.ApiResponse;
+import io.swagger.annotations.ApiResponses;
+
+@RestSchema(schemaId = "download")
+@RequestMapping(path = "/download", produces = 
MediaType.APPLICATION_OCTET_STREAM_VALUE)
+public class DownloadSchema {
+  @GetMapping(path = "/file")
+  public File downloadFile() throws IOException {
+    return new 
File(this.getClass().getClassLoader().getResource("microservice.yaml").getFile());
+  }
+
+  @GetMapping(path = "/resource")
+  @ApiResponses({
+      @ApiResponse(code = 200, response = File.class, message = ""),
+  })
+  public Resource downloadResource() throws IOException {
+    return new ByteArrayResource("abc".getBytes(StandardCharsets.UTF_8)) {
+      @Override
+      public String getFilename() {
+        return "abc.txt";
+      }
+    };
+  }
+
+  @GetMapping(path = "/entityResource")
+  @ApiResponses({
+      @ApiResponse(code = 200, response = File.class, message = ""),
+  })
+  public ResponseEntity<Resource> downloadEntityResource() throws IOException {
+    return ResponseEntity
+        .ok()
+        .header(HttpHeaders.CONTENT_DISPOSITION, 
"attachment;filename=entityResource.txt")
+        .body(new 
ByteArrayResource("entityResource".getBytes(StandardCharsets.UTF_8)));
+  }
+
+  @GetMapping(path = "/entityInputStream")
+  @ApiResponses({
+      @ApiResponse(code = 200, response = File.class, message = ""),
+  })
+  public ResponseEntity<InputStream> downloadEntityInputStream() throws 
IOException {
+    return ResponseEntity
+        .ok()
+        .header(HttpHeaders.CONTENT_DISPOSITION, 
"attachment;filename=entityInputStream.txt")
+        .body(new 
ByteArrayInputStream("entityInputStream".getBytes(StandardCharsets.UTF_8)));
+  }
+}
diff --git 
a/foundations/foundation-vertx/src/main/java/org/apache/servicecomb/foundation/vertx/http/AbstractHttpServletResponse.java
 
b/foundations/foundation-vertx/src/main/java/org/apache/servicecomb/foundation/vertx/http/AbstractHttpServletResponse.java
index a09e77380..21404299d 100644
--- 
a/foundations/foundation-vertx/src/main/java/org/apache/servicecomb/foundation/vertx/http/AbstractHttpServletResponse.java
+++ 
b/foundations/foundation-vertx/src/main/java/org/apache/servicecomb/foundation/vertx/http/AbstractHttpServletResponse.java
@@ -23,9 +23,11 @@
 import java.util.HashMap;
 import java.util.Locale;
 import java.util.Map;
+import java.util.concurrent.CompletableFuture;
 
 import javax.servlet.ServletOutputStream;
 import javax.servlet.http.Cookie;
+import javax.servlet.http.Part;
 import javax.ws.rs.core.Response.StatusType;
 
 public abstract class AbstractHttpServletResponse extends 
BodyBufferSupportImpl implements HttpServletResponseEx {
@@ -230,4 +232,9 @@ public void setAttribute(String key, Object value) {
   public Object getAttribute(String key) {
     return this.attributes.get(key);
   }
+
+  @Override
+  public CompletableFuture<Void> sendPart(Part body) {
+    throw new Error("not supported method");
+  }
 }
diff --git 
a/foundations/foundation-vertx/src/main/java/org/apache/servicecomb/foundation/vertx/http/HttpServletResponseEx.java
 
b/foundations/foundation-vertx/src/main/java/org/apache/servicecomb/foundation/vertx/http/HttpServletResponseEx.java
index 9749f4b8e..a1ee34ec9 100644
--- 
a/foundations/foundation-vertx/src/main/java/org/apache/servicecomb/foundation/vertx/http/HttpServletResponseEx.java
+++ 
b/foundations/foundation-vertx/src/main/java/org/apache/servicecomb/foundation/vertx/http/HttpServletResponseEx.java
@@ -17,7 +17,10 @@
 
 package org.apache.servicecomb.foundation.vertx.http;
 
+import java.util.concurrent.CompletableFuture;
+
 import javax.servlet.http.HttpServletResponse;
+import javax.servlet.http.Part;
 import javax.ws.rs.core.Response.StatusType;
 
 public interface HttpServletResponseEx extends HttpServletResponse, 
BodyBufferSupport {
@@ -26,4 +29,6 @@
   void setAttribute(String key, Object value);
 
   Object getAttribute(String key);
+
+  CompletableFuture<Void> sendPart(Part body);
 }
diff --git 
a/foundations/foundation-vertx/src/main/java/org/apache/servicecomb/foundation/vertx/http/StandardHttpServletResponseEx.java
 
b/foundations/foundation-vertx/src/main/java/org/apache/servicecomb/foundation/vertx/http/StandardHttpServletResponseEx.java
index c2c140863..13c0ba710 100644
--- 
a/foundations/foundation-vertx/src/main/java/org/apache/servicecomb/foundation/vertx/http/StandardHttpServletResponseEx.java
+++ 
b/foundations/foundation-vertx/src/main/java/org/apache/servicecomb/foundation/vertx/http/StandardHttpServletResponseEx.java
@@ -20,9 +20,11 @@
 import java.io.IOException;
 import java.util.HashMap;
 import java.util.Map;
+import java.util.concurrent.CompletableFuture;
 
 import javax.servlet.http.HttpServletResponse;
 import javax.servlet.http.HttpServletResponseWrapper;
+import javax.servlet.http.Part;
 import javax.ws.rs.core.Response.StatusType;
 
 import org.apache.servicecomb.foundation.common.http.HttpStatus;
@@ -95,4 +97,9 @@ public void setAttribute(String key, Object value) {
   public Object getAttribute(String key) {
     return this.attributes.get(key);
   }
+
+  @Override
+  public CompletableFuture<Void> sendPart(Part body) {
+    throw new Error("not supported method");
+  }
 }
diff --git 
a/foundations/foundation-vertx/src/main/java/org/apache/servicecomb/foundation/vertx/http/VertxServerResponseToHttpServletResponse.java
 
b/foundations/foundation-vertx/src/main/java/org/apache/servicecomb/foundation/vertx/http/VertxServerResponseToHttpServletResponse.java
index ca5510c59..9f5db5549 100644
--- 
a/foundations/foundation-vertx/src/main/java/org/apache/servicecomb/foundation/vertx/http/VertxServerResponseToHttpServletResponse.java
+++ 
b/foundations/foundation-vertx/src/main/java/org/apache/servicecomb/foundation/vertx/http/VertxServerResponseToHttpServletResponse.java
@@ -18,17 +18,23 @@
 package org.apache.servicecomb.foundation.vertx.http;
 
 import java.io.IOException;
+import java.io.InputStream;
 import java.util.Collection;
 import java.util.Objects;
+import java.util.concurrent.CompletableFuture;
 
+import javax.servlet.http.Part;
 import javax.ws.rs.core.HttpHeaders;
 import javax.ws.rs.core.Response.StatusType;
 
+import org.apache.commons.io.IOUtils;
 import org.apache.servicecomb.foundation.common.http.HttpStatus;
+import org.apache.servicecomb.foundation.vertx.stream.InputStreamToReadStream;
 
 import io.vertx.core.Context;
 import io.vertx.core.Vertx;
 import io.vertx.core.http.HttpServerResponse;
+import io.vertx.core.streams.Pump;
 
 public class VertxServerResponseToHttpServletResponse extends 
AbstractHttpServletResponse {
   private Context context;
@@ -118,4 +124,50 @@ public void internalFlushBuffer() {
 
     serverResponse.end(bodyBuffer);
   }
+
+  @Override
+  public CompletableFuture<Void> sendPart(Part part) {
+    CompletableFuture<Void> future = new CompletableFuture<Void>();
+
+    prepareSendPartHeader(part);
+
+    try {
+      InputStream is = part.getInputStream();
+      context.runOnContext(v -> {
+        InputStreamToReadStream aa = new 
InputStreamToReadStream(context.owner(), is);
+        aa.exceptionHandler(t -> {
+          clearPartResource(part, is);
+          future.completeExceptionally(t);
+        });
+        aa.endHandler(V -> {
+          clearPartResource(part, is);
+          future.complete(null);
+        });
+        Pump.pump(aa, serverResponse).start();
+      });
+    } catch (IOException e) {
+      future.completeExceptionally(e);
+    }
+
+    return future;
+  }
+
+  protected void prepareSendPartHeader(Part part) {
+    if (!serverResponse.headers().contains(HttpHeaders.CONTENT_LENGTH)) {
+      serverResponse.setChunked(true);
+    }
+
+    if (!serverResponse.headers().contains(HttpHeaders.CONTENT_TYPE)) {
+      serverResponse.putHeader(HttpHeaders.CONTENT_TYPE, 
part.getContentType());
+    }
+
+    if (!serverResponse.headers().contains(HttpHeaders.CONTENT_DISPOSITION)) {
+      serverResponse.putHeader(HttpHeaders.CONTENT_DISPOSITION,
+          "attachment;filename=" + part.getSubmittedFileName());
+    }
+  }
+
+  protected void clearPartResource(Part part, InputStream is) {
+    IOUtils.closeQuietly(is);
+  }
 }
diff --git 
a/foundations/foundation-vertx/src/main/java/org/apache/servicecomb/foundation/vertx/stream/InputStreamToReadStream.java
 
b/foundations/foundation-vertx/src/main/java/org/apache/servicecomb/foundation/vertx/stream/InputStreamToReadStream.java
index 2b94af4af..2066dfe9c 100644
--- 
a/foundations/foundation-vertx/src/main/java/org/apache/servicecomb/foundation/vertx/stream/InputStreamToReadStream.java
+++ 
b/foundations/foundation-vertx/src/main/java/org/apache/servicecomb/foundation/vertx/stream/InputStreamToReadStream.java
@@ -34,7 +34,7 @@
 public class InputStreamToReadStream implements ReadStream<Buffer> {
   private static final Logger LOGGER = 
LoggerFactory.getLogger(InputStreamToReadStream.class);
 
-  public static final int DEFAULT_READ_BUFFER_SIZE = 8192;
+  public static final int DEFAULT_READ_BUFFER_SIZE = 1024 * 1024;
 
   private Vertx vertx;
 
diff --git 
a/foundations/foundation-vertx/src/test/java/org/apache/servicecomb/foundation/vertx/http/TestAbstractHttpServletResponse.java
 
b/foundations/foundation-vertx/src/test/java/org/apache/servicecomb/foundation/vertx/http/TestAbstractHttpServletResponse.java
index 24627725e..ec884eeea 100644
--- 
a/foundations/foundation-vertx/src/test/java/org/apache/servicecomb/foundation/vertx/http/TestAbstractHttpServletResponse.java
+++ 
b/foundations/foundation-vertx/src/test/java/org/apache/servicecomb/foundation/vertx/http/TestAbstractHttpServletResponse.java
@@ -20,10 +20,12 @@
 import java.io.IOException;
 
 import org.hamcrest.Matchers;
+import org.junit.Assert;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.rules.ExpectedException;
 
+
 public class TestAbstractHttpServletResponse {
   @Rule
   public ExpectedException expectedException = ExpectedException.none();
@@ -304,4 +306,17 @@ public void testGetStatusType() {
 
     response.getStatusType();
   }
+
+  @Test
+  public void attribute() {
+    response.setAttribute("k", "v");
+    Assert.assertEquals("v", response.getAttribute("k"));
+  }
+
+  @Test
+  public void sendPart() {
+    setExceptionExpected();
+
+    response.sendPart(null);
+  }
 }
diff --git 
a/foundations/foundation-vertx/src/test/java/org/apache/servicecomb/foundation/vertx/http/TestStandardHttpServletResponseEx.java
 
b/foundations/foundation-vertx/src/test/java/org/apache/servicecomb/foundation/vertx/http/TestStandardHttpServletResponseEx.java
index 82853b234..00cb71e8e 100644
--- 
a/foundations/foundation-vertx/src/test/java/org/apache/servicecomb/foundation/vertx/http/TestStandardHttpServletResponseEx.java
+++ 
b/foundations/foundation-vertx/src/test/java/org/apache/servicecomb/foundation/vertx/http/TestStandardHttpServletResponseEx.java
@@ -23,9 +23,12 @@
 import javax.servlet.WriteListener;
 import javax.servlet.http.HttpServletResponse;
 
+import org.hamcrest.Matchers;
 import org.junit.Assert;
 import org.junit.Before;
+import org.junit.Rule;
 import org.junit.Test;
+import org.junit.rules.ExpectedException;
 
 import io.vertx.core.buffer.Buffer;
 import mockit.Mock;
@@ -38,6 +41,14 @@
 
   StandardHttpServletResponseEx responseEx;
 
+  @Rule
+  public ExpectedException expectedException = ExpectedException.none();
+
+  private void setExceptionExpected() {
+    expectedException.expect(Error.class);
+    expectedException.expectMessage(Matchers.is("not supported method"));
+  }
+
   @Before
   public void setup() {
     responseEx = new StandardHttpServletResponseEx(response);
@@ -114,4 +125,17 @@ ServletOutputStream getOutputStream() {
     responseEx.flushBuffer();
     Assert.assertEquals("body", buffer.toString());
   }
+
+  @Test
+  public void attribute() {
+    responseEx.setAttribute("k", "v");
+    Assert.assertEquals("v", responseEx.getAttribute("k"));
+  }
+
+  @Test
+  public void sendPart() {
+    setExceptionExpected();
+
+    responseEx.sendPart(null);
+  }
 }
diff --git 
a/foundations/foundation-vertx/src/test/java/org/apache/servicecomb/foundation/vertx/http/TestVertxServerResponseToHttpServletResponse.java
 
b/foundations/foundation-vertx/src/test/java/org/apache/servicecomb/foundation/vertx/http/TestVertxServerResponseToHttpServletResponse.java
index d821d1412..c69d41cc2 100644
--- 
a/foundations/foundation-vertx/src/test/java/org/apache/servicecomb/foundation/vertx/http/TestVertxServerResponseToHttpServletResponse.java
+++ 
b/foundations/foundation-vertx/src/test/java/org/apache/servicecomb/foundation/vertx/http/TestVertxServerResponseToHttpServletResponse.java
@@ -18,7 +18,11 @@
 package org.apache.servicecomb.foundation.vertx.http;
 
 import java.io.IOException;
+import java.io.InputStream;
+import java.util.concurrent.CompletableFuture;
+import java.util.concurrent.ExecutionException;
 
+import javax.servlet.http.Part;
 import javax.ws.rs.core.HttpHeaders;
 import javax.ws.rs.core.Response.StatusType;
 
@@ -30,9 +34,12 @@
 import org.junit.Test;
 import org.junit.rules.ExpectedException;
 
+import io.vertx.core.AsyncResult;
 import io.vertx.core.Context;
+import io.vertx.core.Future;
 import io.vertx.core.Handler;
 import io.vertx.core.MultiMap;
+import io.vertx.core.Vertx;
 import io.vertx.core.buffer.Buffer;
 import io.vertx.core.http.HttpServerResponse;
 import io.vertx.core.impl.VertxImpl;
@@ -55,12 +62,17 @@
 
   boolean runOnContextInvoked;
 
+  @Mocked
+  Vertx vertx;
+
   @Mocked
   Context context;
 
   @Rule
   public ExpectedException expectedException = ExpectedException.none();
 
+  boolean chunked;
+
   @Before
   public void setup() {
     serverResponse = new MockUp<HttpServerResponse>() {
@@ -91,6 +103,12 @@ MultiMap headers() {
         return headers;
       }
 
+      @Mock
+      HttpServerResponse putHeader(String name, String value) {
+        headers.set(name, value);
+        return serverResponse;
+      }
+
       @Mock
       void end() {
         flushWithBody = false;
@@ -100,6 +118,17 @@ void end() {
       void end(Buffer chunk) {
         flushWithBody = true;
       }
+
+      @Mock
+      HttpServerResponse setChunked(boolean chunked) {
+        TestVertxServerResponseToHttpServletResponse.this.chunked = chunked;
+        return serverResponse;
+      }
+
+      @Mock
+      boolean isChunked() {
+        return chunked;
+      }
     }.getMockInstance();
 
     new Expectations(VertxImpl.class) {
@@ -115,6 +144,22 @@ void runOnContext(Handler<Void> action) {
         runOnContextInvoked = true;
         action.handle(null);
       }
+
+      @Mock
+      Vertx owner() {
+        return vertx;
+      }
+    };
+
+    new MockUp<Vertx>(vertx) {
+      @Mock
+      <T> void executeBlocking(Handler<Future<T>> blockingCodeHandler, boolean 
ordered,
+          Handler<AsyncResult<T>> resultHandler) {
+        Future<T> future = Future.future();
+        future.setHandler(resultHandler);
+
+        blockingCodeHandler.handle(future);
+      }
     };
 
     response = new VertxServerResponseToHttpServletResponse(serverResponse);
@@ -246,4 +291,91 @@ public void internalFlushBufferWithBody() throws 
IOException {
 
     Assert.assertTrue(flushWithBody);
   }
+
+  @Test
+  public void prepareSendPartHeader_update(@Mocked Part part) {
+    new Expectations() {
+      {
+        part.getContentType();
+        result = "type";
+        part.getSubmittedFileName();
+        result = "name";
+      }
+    };
+    response.prepareSendPartHeader(part);
+
+    Assert.assertTrue(serverResponse.isChunked());
+    Assert.assertEquals("type", response.getHeader(HttpHeaders.CONTENT_TYPE));
+    Assert.assertEquals("attachment;filename=name", 
response.getHeader(HttpHeaders.CONTENT_DISPOSITION));
+  }
+
+  @Test
+  public void prepareSendPartHeader_notUpdate(@Mocked Part part) {
+    headers.add(HttpHeaders.CONTENT_LENGTH, "10");
+    headers.add(HttpHeaders.CONTENT_TYPE, "type");
+    headers.add(HttpHeaders.CONTENT_DISPOSITION, "disposition");
+
+    response.prepareSendPartHeader(part);
+
+    Assert.assertFalse(serverResponse.isChunked());
+    Assert.assertEquals("type", response.getHeader(HttpHeaders.CONTENT_TYPE));
+    Assert.assertEquals("disposition", 
response.getHeader(HttpHeaders.CONTENT_DISPOSITION));
+  }
+
+  @Test
+  public void sendPart_openInputStreamFailed(@Mocked Part part)
+      throws IOException, InterruptedException, ExecutionException {
+    IOException ioException = new IOException("forbid open stream");
+    new Expectations() {
+      {
+        part.getInputStream();
+        result = ioException;
+      }
+    };
+
+    CompletableFuture<Void> future = response.sendPart(part);
+
+    expectedException.expect(ExecutionException.class);
+    expectedException.expectCause(Matchers.sameInstance(ioException));
+
+    future.get();
+  }
+
+  @Test
+  public void sendPart_inputStreamBreak(@Mocked Part part, @Mocked InputStream 
inputStream)
+      throws IOException, InterruptedException, ExecutionException {
+    IOException ioException = new IOException("forbid read");
+    new Expectations() {
+      {
+        part.getInputStream();
+        result = inputStream;
+        inputStream.read((byte[]) any);
+        result = ioException;
+      }
+    };
+
+    CompletableFuture<Void> future = response.sendPart(part);
+
+    expectedException.expect(ExecutionException.class);
+    expectedException.expectCause(Matchers.sameInstance(ioException));
+
+    future.get();
+  }
+
+  @Test
+  public void sendPart_succ(@Mocked Part part, @Mocked InputStream inputStream)
+      throws IOException, InterruptedException, ExecutionException {
+    new Expectations() {
+      {
+        part.getInputStream();
+        result = inputStream;
+        inputStream.read((byte[]) any);
+        result = -1;
+      }
+    };
+
+    CompletableFuture<Void> future = response.sendPart(part);
+
+    Assert.assertNull(future.get());
+  }
 }
diff --git 
a/metrics/metrics-core/src/main/java/org/apache/servicecomb/metrics/core/DefaultRegistryInitializer.java
 
b/metrics/metrics-core/src/main/java/org/apache/servicecomb/metrics/core/DefaultRegistryInitializer.java
index 64650de20..5e81ee1d8 100644
--- 
a/metrics/metrics-core/src/main/java/org/apache/servicecomb/metrics/core/DefaultRegistryInitializer.java
+++ 
b/metrics/metrics-core/src/main/java/org/apache/servicecomb/metrics/core/DefaultRegistryInitializer.java
@@ -26,10 +26,6 @@
 import com.netflix.spectator.servo.ServoRegistry;
 
 public class DefaultRegistryInitializer implements MetricsInitializer {
-  public static final String METRICS_WINDOW_TIME = 
"servicecomb.metrics.window_time";
-
-  public static final int DEFAULT_METRICS_WINDOW_TIME = 5000;
-
   public static final String SERVO_POLLERS = "servo.pollers";
 
   private CompositeRegistry globalRegistry;


 

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> springmvc over transport rest vertx support file download
> ---------------------------------------------------------
>
>                 Key: SCB-483
>                 URL: https://issues.apache.org/jira/browse/SCB-483
>             Project: Apache ServiceComb
>          Issue Type: Sub-task
>          Components: Java-Chassis
>            Reporter: wujimin
>            Assignee: wujimin
>            Priority: Major
>




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