Autocomplete Feature für Kursnamen hinzugefügt (eigene API, da von DHBW nicht bereitg...

[DHBWCampusApp.git] / app / src / main / java / de / dhbwloe / campusapp / network / JsonRequestHelper.java

diff --git a/app/src/main/java/de/dhbwloe/campusapp/network/JsonRequestHelper.java b/app/src/main/java/de/dhbwloe/campusapp/network/JsonRequestHelper.java
new file mode 100644 (file)
index 0000000..54e8f09
--- /dev/null
+++ b/app/src/main/java/de/dhbwloe/campusapp/network/JsonRequestHelper.java
@@ -0,0 +1,75 @@
+package de.dhbwloe.campusapp.network;
+
+import android.util.Log;
+
+import com.loopj.android.http.AsyncHttpClient;
+import com.loopj.android.http.AsyncHttpResponseHandler;
+
+import org.json.JSONArray;
+import org.json.JSONException;
+import org.json.JSONObject;
+
+import java.util.List;
+
+import cz.msebera.android.httpclient.Header;
+
+/**
+ * Created by pk910 on 09.03.2016.
+ */
+public abstract class JsonRequestHelper {
+
+    protected void requestJsonFromWeb(String url) {
+        AsyncHttpClient client = new AsyncHttpClient();
+
+        Log.i("HTTPClient", "Request: " + url);
+        client.get(url, new AsyncHttpResponseHandler() {
+            @Override
+            public void onStart() {
+            }
+
+            @Override
+            public void onSuccess(int statusCode, Header[] headers, byte[] response) {
+                String recvStr = new String(response);
+                JSONObject jsonObj = null;
+                JSONArray jsonArr = null;
+                try {
+                    jsonObj = new JSONObject(recvStr);
+                } catch (JSONException e) {
+                    e.printStackTrace();
+                }
+                try {
+                    jsonArr = new JSONArray(recvStr);
+                } catch (JSONException e) {
+                    e.printStackTrace();
+                }
+                if(jsonObj != null)
+                    onJsonReceived(jsonObj);
+                else if(jsonArr != null)
+                    onJsonReceived(jsonArr);
+                else
+                    onTextReceived(recvStr);
+            }
+
+            @Override
+            public void onFailure(int statusCode, Header[] headers, byte[] errorResponse, Throwable e) {
+                String error = null;
+                try {
+                    error = new String(errorResponse, "US-ASCII");
+                } catch (Exception e1) {
+                }
+                Log.i("HTTPClient", "  Error: " + statusCode + " - " + error);
+                onJsonRequestFail(statusCode, error);
+            }
+
+            @Override
+            public void onRetry(int retryNo) {
+            }
+        });
+    }
+
+    protected abstract void onJsonReceived(JSONObject json);
+    protected abstract void onJsonReceived(JSONArray json);
+    protected abstract void onTextReceived(String response);
+    protected abstract void onJsonRequestFail(int statusCode, String errorMessage);
+
+}