Add online (aka ReplayCenter) module

Add localization extra (formally known as LocalizedResourcePack)
Add version checker extra

src/main/java/com/replaymod/online/api/SimpleApiClient.java

@@ -0,0 +1,123 @@
+package com.replaymod.online.api;
+
+import com.google.gson.Gson;
+import com.google.gson.JsonObject;
+import com.google.gson.JsonParseException;
+import com.google.gson.JsonParser;
+import com.replaymod.online.api.replay.holders.ApiError;
+import org.apache.commons.io.IOUtils;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.net.HttpURLConnection;
+import java.net.URL;
+import java.util.Map;
+
+public class SimpleApiClient {
+
+    private static final JsonParser jsonParser = new JsonParser();
+    private static final Gson gson = new Gson();
+
+    /**
+     * Returns a Json String from the given QueryBuilder
+     *
+     * @param query The QueryBuilder to use
+     * @return A Json String from the API
+     * @throws IOException
+     * @throws ApiException
+     */
+    public static String invoke(QueryBuilder query) throws IOException, ApiException {
+        return invokeImpl(query.toString());
+    }
+
+    /**
+     * Returns a Json String from the given URL
+     *
+     * @param url The URL to parse the Json from
+     * @return A Json String from the API
+     * @throws IOException
+     * @throws ApiException
+     */
+    public static String invokeUrl(String url) throws IOException, ApiException {
+        return invokeImpl(url);
+    }
+
+    /**
+     * Returns a Json String from the API
+     *
+     * @param method   The apiMethod to be called
+     * @param paramMap The parameters to apply
+     * @return A Json String from the API
+     * @throws IOException
+     * @throws ApiException
+     */
+    public static String invoke(String method, Map<String, Object> paramMap) throws IOException, ApiException {
+        return invokeImpl(method, paramMap);
+    }
+
+    /**
+     * Returns a Json String from the API
+     *
+     * @param method The apiMethod to be called
+     * @return A Json String from the API
+     * @throws IOException
+     * @throws ApiException
+     */
+    public static String invoke(String method) throws IOException, ApiException {
+        return invokeImpl(method, null);
+    }
+
+    private static String invokeImpl(String urlString) throws IOException, ApiException {
+
+        // read response
+        String responseContent = null;
+        InputStream is = null;
+        HttpURLConnection httpUrlConnection = null;
+        try {
+            URL url = new URL(urlString);
+            httpUrlConnection = (HttpURLConnection) url.openConnection();
+
+            httpUrlConnection.setRequestMethod("GET");
+
+            // give it 15 seconds to respond
+            httpUrlConnection.setReadTimeout(15 * 1000);
+            httpUrlConnection.connect();
+
+            int responseCode = httpUrlConnection.getResponseCode();
+
+            if(responseCode != 200) {
+                is = httpUrlConnection.getErrorStream();
+                if(is != null) {
+                    responseContent = IOUtils.toString(is, "UTF-8");
+                } else {
+                    responseContent = "";
+                }
+                try {
+                    JsonObject response = jsonParser.parse(responseContent).getAsJsonObject();
+                    throw new ApiException(gson.fromJson(response, ApiError.class));
+                } catch(JsonParseException e) {
+                    throw new ApiException(responseContent);
+                }
+            }
+
+            is = httpUrlConnection.getInputStream();
+
+            responseContent = IOUtils.toString(is, "UTF-8");
+
+        } finally {
+            if(is != null) {
+                is.close();
+            }
+            if(httpUrlConnection != null) {
+                httpUrlConnection.disconnect();
+            }
+        }
+        return responseContent;
+    }
+
+    private static String invokeImpl(String method, Map<String, Object> paramMap) throws IOException, ApiException {
+        QueryBuilder queryBuilder = new QueryBuilder(method);
+        queryBuilder.put(paramMap);
+        return invokeImpl(queryBuilder.toString());
+    }
+}