From 49de9374cd17b7443a9f7f229be97e3c1b5b28eb Mon Sep 17 00:00:00 2001
From: "yihua.huang" <code4crafter@gmail.com>
Date: Sat, 27 May 2017 17:30:19 +0800
Subject: [PATCH] new SimpleHttpClient #576

---
 .../java/us/codecraft/webmagic/Request.java   |  9 ++--
 .../codecraft/webmagic/SimpleHttpClient.java  | 51 +++++++++++++++++++
 2 files changed, 57 insertions(+), 3 deletions(-)
 create mode 100644 webmagic-extension/src/main/java/us/codecraft/webmagic/SimpleHttpClient.java

diff --git a/webmagic-core/src/main/java/us/codecraft/webmagic/Request.java b/webmagic-core/src/main/java/us/codecraft/webmagic/Request.java
index d2ea247b..f29ccb32 100644
--- a/webmagic-core/src/main/java/us/codecraft/webmagic/Request.java
+++ b/webmagic-core/src/main/java/us/codecraft/webmagic/Request.java
@@ -93,12 +93,14 @@ public class Request implements Serializable {
         return extras;
     }
 
-    public void setExtras(Map<String, Object> extras) {
+    public Request setExtras(Map<String, Object> extras) {
         this.extras = extras;
+        return this;
     }
 
-    public void setUrl(String url) {
+    public Request setUrl(String url) {
         this.url = url;
+        return this;
     }
 
     /**
@@ -111,8 +113,9 @@ public class Request implements Serializable {
         return method;
     }
 
-    public void setMethod(String method) {
+    public Request setMethod(String method) {
         this.method = method;
+        return this;
     }
 
     @Override
diff --git a/webmagic-extension/src/main/java/us/codecraft/webmagic/SimpleHttpClient.java b/webmagic-extension/src/main/java/us/codecraft/webmagic/SimpleHttpClient.java
new file mode 100644
index 00000000..67f4348e
--- /dev/null
+++ b/webmagic-extension/src/main/java/us/codecraft/webmagic/SimpleHttpClient.java
@@ -0,0 +1,51 @@
+package us.codecraft.webmagic;
+
+import us.codecraft.webmagic.downloader.HttpClientDownloader;
+import us.codecraft.webmagic.model.PageMapper;
+import us.codecraft.webmagic.proxy.ProxyProvider;
+
+/**
+ * @author code4crafter@gmail.com
+ *         Date: 2017/5/27
+ * @since 0.7.0
+ */
+public class SimpleHttpClient {
+
+    private final HttpClientDownloader httpClientDownloader;
+
+    private final Site site;
+
+    public SimpleHttpClient() {
+        this(Site.me());
+    }
+
+    public SimpleHttpClient(Site site) {
+        this.site = site;
+        this.httpClientDownloader = new HttpClientDownloader();
+    }
+
+    public void setProxyProvider(ProxyProvider proxyProvider){
+        this.httpClientDownloader.setProxyProvider(proxyProvider);
+    }
+
+    public <T> T get(String url, Class<T> clazz) {
+        return get(new Request(url), clazz);
+    }
+
+    public <T> T get(Request request, Class<T> clazz) {
+        Page page = httpClientDownloader.download(request, site.toTask());
+        if (!page.isDownloadSuccess()) {
+            return null;
+        }
+        return new PageMapper<T>(clazz).get(page);
+    }
+
+    public Page get(String url) {
+        return httpClientDownloader.download(new Request(url), site.toTask());
+    }
+
+    public Page get(Request request) {
+        return httpClientDownloader.download(request, site.toTask());
+    }
+
+}