made content validator to process batch events

components/iot-plugins/das-extensions/org.wso2.carbon.event.input.adapter.extensions/src/main/java/org/wso2/carbon/event/input/adapter/extensions/http/util/HTTPContentValidator.java

@@ -21,6 +21,9 @@ package org.wso2.carbon.event.input.adapter.extensions.http.util;
 import com.jayway.jsonpath.JsonPath;
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
+import org.json.simple.JSONArray;
+import org.json.simple.parser.JSONParser;
+import org.json.simple.parser.ParseException;
 import org.wso2.carbon.event.input.adapter.extensions.ContentInfo;
 import org.wso2.carbon.event.input.adapter.extensions.ContentValidator;
 
@@ -28,17 +31,46 @@ import java.util.Map;
 
 public class HTTPContentValidator implements ContentValidator {
 	private static final Log log = LogFactory.getLog(HTTPContentValidator.class);
+	private static String JSON_ARRAY_START_CHAR = "[";
 
 	@Override
 	public ContentInfo validate(Map<String, String> paramMap) {
 		String deviceId = paramMap.get("deviceId");
 		String msg = paramMap.get(HTTPEventAdapterConstants.PAYLOAD_TAG);
 		String deviceIdJsonPath = paramMap.get(HTTPEventAdapterConstants.DEVICE_ID_JSON_PATH);
+		boolean status;
+		if (msg.startsWith(JSON_ARRAY_START_CHAR)) {
+			status = processMultipleEvents(msg, deviceId, deviceIdJsonPath);
+		} else {
+			status = processSingleEvent(msg, deviceId, deviceIdJsonPath);
+		}
+		return new ContentInfo(status, msg);
+	}
+
+	private boolean processSingleEvent(String msg, String deviceIdFromTopic, String deviceIdJsonPath) {
 		Object res = JsonPath.read(msg, deviceIdJsonPath);
 		String deviceIdFromContent = (res != null) ? res.toString() : "";
-		if (deviceIdFromContent.equals(deviceId)) {
-			return new ContentInfo(true, msg);
+		if (deviceIdFromContent.equals(deviceIdFromTopic)) {
+			return true;
+		}
+		return false;
+	}
+
+	private boolean processMultipleEvents(String msg, String deviceIdFromTopic, String deviceIdJsonPath) {
+		try {
+			JSONParser jsonParser = new JSONParser();
+			JSONArray jsonArray = (JSONArray) jsonParser.parse(msg);
+			boolean status = false;
+			for (int i = 0; i < jsonArray.size(); i++) {
+				status = processSingleEvent(jsonArray.get(i).toString(), deviceIdFromTopic, deviceIdJsonPath);
+				if (!status) {
+					return status;
+				}
+			}
+			return status;
+		} catch (ParseException e) {
+			log.error("Invalid input " + msg, e);
+			return false;
 		}
-		return new ContentInfo(false, msg);
 	}
 }

components/iot-plugins/das-extensions/org.wso2.carbon.event.input.adapter.extensions/src/main/java/org/wso2/carbon/event/input/adapter/extensions/mqtt/util/MQTTContentValidator.java

@@ -21,6 +21,10 @@ package org.wso2.carbon.event.input.adapter.extensions.mqtt.util;
 import com.jayway.jsonpath.JsonPath;
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
+import org.json.simple.JSONArray;
+import org.json.simple.JSONObject;
+import org.json.simple.parser.JSONParser;
+import org.json.simple.parser.ParseException;
 import org.wso2.carbon.event.input.adapter.extensions.ContentInfo;
 import org.wso2.carbon.event.input.adapter.extensions.ContentValidator;
 import org.wso2.carbon.event.input.adapter.extensions.mqtt.Constants;
@@ -28,6 +32,7 @@ import org.wso2.carbon.event.input.adapter.extensions.mqtt.Constants;
 import java.util.Map;
 
 public class MQTTContentValidator implements ContentValidator {
+	private static String JSON_ARRAY_START_CHAR = "[";
 	private static final Log log = LogFactory.getLog(MQTTContentValidator.class);
 
 	@Override
@@ -43,11 +48,39 @@ public class MQTTContentValidator implements ContentValidator {
 			deviceIdInTopicHierarchyLevelIndex = Integer.parseInt(deviceIdInTopicHierarchyLevel);
 		}
 		String deviceIdFromTopic = topics[deviceIdInTopicHierarchyLevelIndex];
+		boolean status;
+		if (msg.startsWith(JSON_ARRAY_START_CHAR)) {
+			status = processMultipleEvents(msg, deviceIdFromTopic, deviceIdJsonPath);
+		} else {
+			status = processSingleEvent(msg, deviceIdFromTopic, deviceIdJsonPath);
+		}
+		return new ContentInfo(status, msg);
+	}
+
+	private boolean processSingleEvent(String msg, String deviceIdFromTopic, String deviceIdJsonPath) {
 		Object res = JsonPath.read(msg, deviceIdJsonPath);
 		String deviceIdFromContent = (res != null) ? res.toString() : "";
 		if (deviceIdFromContent.equals(deviceIdFromTopic)) {
-			return new ContentInfo(true, msg);
+			return true;
+		}
+		return false;
+	}
+
+	private boolean processMultipleEvents(String msg, String deviceIdFromTopic, String deviceIdJsonPath) {
+		try {
+			JSONParser jsonParser = new JSONParser();
+			JSONArray jsonArray = (JSONArray) jsonParser.parse(msg);
+			boolean status = false;
+			for (int i = 0; i < jsonArray.size(); i++) {
+				status = processSingleEvent(jsonArray.get(i).toString(), deviceIdFromTopic, deviceIdJsonPath);
+				if (!status) {
+					return status;
+				}
+			}
+			return status;
+		} catch (ParseException e) {
+			log.error("Invalid input " + msg, e);
+			return false;
 		}
-		return new ContentInfo(false, msg);
 	}
 }