Can get a list of posts from the API

app/src/main/java/org/communiquons/android/comunic/client/data/posts/PostsHelper.java

@@ -0,0 +1,91 @@
+package org.communiquons.android.comunic.client.data.posts;
+
+import android.content.Context;
+import android.support.annotation.Nullable;
+
+import org.communiquons.android.comunic.client.api.APIRequest;
+import org.communiquons.android.comunic.client.api.APIRequestParameters;
+import org.communiquons.android.comunic.client.api.APIResponse;
+import org.json.JSONArray;
+import org.json.JSONException;
+import org.json.JSONObject;
+
+/**
+ * Posts helper
+ *
+ * This helper contains methods that allows to manipulate posts
+ *
+ * @author Pierre HUBERT
+ * Created by pierre on 1/21/18.
+ */
+
+public class PostsHelper {
+
+    /**
+     * The context of the application
+     */
+    private Context mContext;
+
+    /**
+     * Public constructor
+     *
+     * @param context The context of the application
+     */
+    public PostsHelper(Context context){
+        mContext = context;
+    }
+
+    /**
+     * Get the list of the posts of a user
+     *
+     * @param userID The ID of the user to get the post from
+     * @return The list of posts / null in case of failure
+     */
+    @Nullable
+    public PostsList get_user(int userID){
+
+        //Perform a request on the API
+        APIRequestParameters params = new APIRequestParameters(mContext, "posts/get_user");
+        params.addParameter("userID", userID);
+
+        //Perform the request
+        try {
+
+            //Make the request on the API
+            APIResponse response = new APIRequest().exec(params);
+
+            //Get the list of posts and process it
+            JSONArray posts = response.getJSONArray();
+            PostsList list = new PostsList();
+
+            for(int i = 0; i < posts.length(); i++){
+                list.add(parse_json_post(posts.getJSONObject(i)));
+            }
+
+            return list;
+
+        } catch (Exception e) {
+            e.printStackTrace();
+            return null;
+        }
+    }
+
+    /**
+     * Parse a JSON post informations into POST object
+     *
+     * @param json Source JSON post informations
+     * @return The created post element
+     */
+    private Post parse_json_post(JSONObject json) throws JSONException {
+
+        Post post = new Post();
+
+        //Parse JSON object
+        post.setId(json.getInt("ID"));
+        post.setUserID(json.getInt("userID"));
+        post.setPost_time(json.getInt("post_time"));
+        post.setContent(json.getString("content"));
+
+        return post;
+    }
+}