[ISSUE#3712] add apache http client factory

common/src/main/java/com/alibaba/nacos/common/http/AbstractApacheHttpClientFactory.java

@@ -0,0 +1,38 @@
+/*
+ * Copyright 1999-2018 Alibaba Group Holding Ltd.
+ *
+ * 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.alibaba.nacos.common.http;
+
+import com.alibaba.nacos.common.http.client.NacosRestTemplate;
+import com.alibaba.nacos.common.http.client.request.DefaultHttpClientRequest;
+import org.apache.http.client.config.RequestConfig;
+import org.apache.http.impl.client.HttpClients;
+
+/**
+ * apache http client factory implements.
+ *
+ * @author mai.jh
+ */
+public abstract class AbstractApacheHttpClientFactory extends AbstractHttpClientFactory {
+
+    @Override
+    public final NacosRestTemplate createNacosRestTemplate() {
+        final RequestConfig requestConfig = getRequestConfig();
+        return new NacosRestTemplate(assignLogger(),
+                new DefaultHttpClientRequest(HttpClients.custom().setDefaultRequestConfig(requestConfig).build()));
+    }
+
+}

common/src/main/java/com/alibaba/nacos/common/http/AbstractHttpClientFactory.java

@@ -44,7 +44,7 @@
 public abstract class AbstractHttpClientFactory implements HttpClientFactory {
 
     @Override
-    public final NacosRestTemplate createNacosRestTemplate() {
+    public NacosRestTemplate createNacosRestTemplate() {
         HttpClientConfig httpClientConfig = buildHttpClientConfig();
         final JdkHttpClientRequest clientRequest = new JdkHttpClientRequest(httpClientConfig);
 
@@ -66,13 +66,13 @@ public void onChanged(String filePath) {
     }
 
     @Override
-    public final NacosAsyncRestTemplate createNacosAsyncRestTemplate() {
+    public NacosAsyncRestTemplate createNacosAsyncRestTemplate() {
         RequestConfig requestConfig = getRequestConfig();
         return new NacosAsyncRestTemplate(assignLogger(), new DefaultAsyncHttpClientRequest(
                 HttpAsyncClients.custom().setDefaultRequestConfig(requestConfig).build()));
     }
 
-    private RequestConfig getRequestConfig() {
+    protected RequestConfig getRequestConfig() {
         HttpClientConfig httpClientConfig = buildHttpClientConfig();
         return RequestConfig.custom().setConnectTimeout(httpClientConfig.getConTimeOutMillis())
                 .setSocketTimeout(httpClientConfig.getReadTimeOutMillis())

common/src/main/java/com/alibaba/nacos/common/http/BaseHttpMethod.java

@@ -17,9 +17,9 @@
 package com.alibaba.nacos.common.http;
 
 import com.alibaba.nacos.common.utils.HttpMethod;
-
 import com.alibaba.nacos.common.utils.StringUtils;
 import org.apache.http.client.methods.HttpDelete;
+import org.apache.http.client.methods.HttpEntityEnclosingRequestBase;
 import org.apache.http.client.methods.HttpGet;
 import org.apache.http.client.methods.HttpHead;
 import org.apache.http.client.methods.HttpPatch;
@@ -28,6 +28,8 @@
 import org.apache.http.client.methods.HttpRequestBase;
 import org.apache.http.client.methods.HttpTrace;
 
+import java.net.URI;
+
 /**
  * Base http method.
  *
@@ -48,7 +50,7 @@ protected HttpRequestBase createRequest(String url) {
     GET_LARGE(HttpMethod.GET_LARGE) {
         @Override
         protected HttpRequestBase createRequest(String url) {
-            return new BaseHttpClient.HttpGetWithEntity(url);
+            return new HttpGetWithEntity(url);
         }
     },
 
@@ -151,4 +153,22 @@ public static BaseHttpMethod sourceOf(String name) {
         throw new IllegalArgumentException("Unsupported http method : " + name);
     }
 
+    /**
+     * get Large implemented.
+     */
+    public static class HttpGetWithEntity extends HttpEntityEnclosingRequestBase {
+
+        public static final String METHOD_NAME = "GET";
+
+        public HttpGetWithEntity(String url) {
+            super();
+            setURI(URI.create(url));
+        }
+
+        @Override
+        public String getMethod() {
+            return METHOD_NAME;
+        }
+    }
+
 }

common/src/main/java/com/alibaba/nacos/common/http/client/NacosRestTemplate.java

@@ -20,7 +20,9 @@
 import com.alibaba.nacos.common.http.HttpRestResult;
 import com.alibaba.nacos.common.http.HttpUtils;
 import com.alibaba.nacos.common.http.client.handler.ResponseHandler;
+import com.alibaba.nacos.common.http.client.request.DefaultHttpClientRequest;
 import com.alibaba.nacos.common.http.client.request.HttpClientRequest;
+import com.alibaba.nacos.common.http.client.request.JdkHttpClientRequest;
 import com.alibaba.nacos.common.http.client.response.HttpClientResponse;
 import com.alibaba.nacos.common.http.param.Header;
 import com.alibaba.nacos.common.http.param.MediaType;
@@ -95,6 +97,9 @@ public <T> HttpRestResult<T> get(String url, HttpClientConfig config, Header hea
      * get request, may be pulling a lot of data URL request params are expanded using the given query {@link Query},
      * More request parameters can be set via body.
      *
+     * <p>This method can only be used when HttpClientRequest is implemented by {@link DefaultHttpClientRequest}, note:
+     * {@link JdkHttpClientRequest} Implementation does not support this method.
+     *
      * <p>{@code responseType} can be an HttpRestResult or HttpRestResult data {@code T} type.
      *
      * @param url          url