Merge pull request #14 from nullboundary/master

addHeader method for get and post requests

Author: runemadsen

README.md

@@ -11,24 +11,30 @@ How to
 Install the library by [downloading the latest release](https://github.com/runemadsen/HTTProcessing/releases) or via the [Processing contribution manager](http://wiki.processing.org/w/How_to_Install_a_Contributed_Library).
 
 Then import the library in your sketch:
-    
-    import http.requests.*;
-
+```Java    
+import http.requests.*;
+```
 Then you can make GET and POST requests from your code:
-
-    GetRequest get = new GetRequest("http://httprocessing.heroku.com");
-    get.send();
-    println("Reponse Content: " + get.getContent());
-    println("Reponse Content-Length Header: " + get.getHeader("Content-Length"));
+```Java
+GetRequest get = new GetRequest("http://httprocessing.heroku.com");
+get.send();
+println("Reponse Content: " + get.getContent());
+println("Reponse Content-Length Header: " + get.getHeader("Content-Length"));
 
-    PostRequest post = new PostRequest("http://httprocessing.heroku.com");
-    post.addData("name", "Rune");
-    post.send();
-    println("Reponse Content: " + post.getContent());
-    println("Reponse Content-Length Header: " + post.getHeader("Content-Length"));
-
+PostRequest post = new PostRequest("http://httprocessing.heroku.com");
+post.addData("name", "Rune");
+post.send();
+println("Reponse Content: " + post.getContent());
+println("Reponse Content-Length Header: " + post.getHeader("Content-Length"));
+```
 To authenticate requests using a Basic Access authentication scheme, include the following in your requests:
-    
-    get.addUser("username", "password");
-
-    post.addUser("username", "password");
+```Java    
+get.addUser("username", "password");
+post.addUser("username", "password");
+```    
+ To add a header to your request, including the following:
+```Java 
+ //method: addHeader(name,value)
+ get.addHeader("Accept", "application/json");
+ post.addHeader("Content-Type", "application/json");
+``` 

src/http/requests/GetRequest.java

@@ -1,12 +1,17 @@
 package http.requests;
 
+import java.util.ArrayList;
+import java.util.Iterator;
+
 import org.apache.http.Header;
 import org.apache.http.HttpEntity;
 import org.apache.http.HttpResponse;
+import org.apache.http.NameValuePair;
 import org.apache.http.auth.UsernamePasswordCredentials;
 import org.apache.http.client.methods.HttpGet;
 import org.apache.http.impl.auth.BasicScheme;
 import org.apache.http.impl.client.DefaultHttpClient;
+import org.apache.http.message.BasicNameValuePair;
 import org.apache.http.util.EntityUtils;
 
 public class GetRequest
@@ -15,17 +20,28 @@ public class GetRequest
 	String content;
 	HttpResponse response;
 	UsernamePasswordCredentials creds;
+    	ArrayList<BasicNameValuePair> headerPairs;
 
+  
 	public GetRequest(String url) 
 	{
 		this.url = url;
+            headerPairs = new ArrayList<BasicNameValuePair>();
+
 	}
 
 	public void addUser(String user, String pwd) 
 	{
 		creds = new UsernamePasswordCredentials(user, pwd);
-	}
-
+	
+    	}
+    
+    	public void addHeader(String key,String value) {
+        	BasicNameValuePair nvp = new BasicNameValuePair(key,value);
+        	headerPairs.add(nvp);
+        
+    	}  
+      
 	public void send() 
 	{
 		try {
@@ -37,6 +53,13 @@ public void send()
 				httpGet.addHeader(new BasicScheme().authenticate(creds, httpGet, null));				
 			}
 
+                    	Iterator<BasicNameValuePair> headerIterator = headerPairs.iterator();
+                    	while (headerIterator.hasNext()) {
+                      		BasicNameValuePair headerPair = headerIterator.next();
+                      		httpGet.addHeader(headerPair.getName(),headerPair.getValue());
+                    	}
+  
+
 			response = httpClient.execute( httpGet );
 			HttpEntity entity = response.getEntity();
 			this.content = EntityUtils.toString(response.getEntity());

src/http/requests/PostRequest.java

@@ -26,6 +26,8 @@ public class PostRequest
 	String url;
 	ArrayList<BasicNameValuePair> nameValuePairs;
 	HashMap<String,File> nameFilePairs;
+    	ArrayList<BasicNameValuePair> headerPairs;
+
 
 	String content;
 	String encoding;
@@ -49,6 +51,12 @@ public void addUser(String user, String pwd)
 	{
 		creds = new UsernamePasswordCredentials(user, pwd);
 	}
+    
+    	public void addHeader(String key,String value) {
+        	BasicNameValuePair nvp = new BasicNameValuePair(key,value);
+        	headerPairs.add(nvp);
+        
+    	} 
 
 	public void addData(String key, String value) 
 	{
@@ -92,6 +100,12 @@ public void send()
 				httpPost.setEntity(mentity);
 			}
 
+                    	Iterator<BasicNameValuePair> headerIterator = headerPairs.iterator();
+                    	while (headerIterator.hasNext()) {
+                      		BasicNameValuePair headerPair = headerIterator.next();
+                      		httpPost.addHeader(headerPair.getName(),headerPair.getValue());
+                    	}
+
 			response = httpClient.execute( httpPost );
 			HttpEntity   entity   = response.getEntity();
 			this.content = EntityUtils.toString(response.getEntity());