/*
* Copyright (c) 2015, WSO2 Inc. (http://www.wso2.org) All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy
* of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software distributed
* under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
* CONDITIONS OF ANY KIND, either express or implied. See the License for the
* specific language governing permissions and limitations under the License.
*/
package org.wso2.carbon.event.stream.core.internal.util;
import org.wso2.carbon.databridge.commons.Event;
import org.wso2.carbon.databridge.commons.StreamDefinition;
import java.util.Map;
public class EventConverter {
public static Event convertToWSO2Event(org.wso2.siddhi.core.event.Event event, StreamDefinition streamDefinition) {
int metaSize;
int correlationSize;
int payloadSize;
Object[] metaAttributes = null;
Object[] correlationAttributes = null;
Object[] payloadAttributes = null;
long timeStamp = event.getTimestamp();
Object[] objArray = event.getData();
int attributeIndex = 0;
if (streamDefinition.getMetaData() != null) { // If there is at least 1 meta data field
metaSize = streamDefinition.getMetaData().size();
metaAttributes = new Object[metaSize];
for (int i = 0; i < metaSize; i++) {
metaAttributes[i] = objArray[attributeIndex++];
}
}
if (streamDefinition.getCorrelationData() != null) { // If there is at least 1 correlation data field
correlationSize = streamDefinition.getCorrelationData().size();
correlationAttributes = new Object[correlationSize];
for (int i = 0; i < correlationSize; i++) {
correlationAttributes[i] = objArray[attributeIndex++];
}
}
if (streamDefinition.getPayloadData() != null) { // If there is at least 1 payload data field
payloadSize = streamDefinition.getPayloadData().size();
payloadAttributes = new Object[payloadSize];
for (int i = 0; i < payloadSize; i++) {
payloadAttributes[i] = objArray[attributeIndex++];
}
}
return new Event(streamDefinition.getStreamId(), timeStamp, metaAttributes, correlationAttributes, payloadAttributes);
}
public static org.wso2.siddhi.core.event.Event convertToEvent(Event event, boolean metaFlag, boolean correlationFlag, boolean payloadFlag, int size) {
Object[] eventObject;
Map<String, String> arbitraryDataMap = event.getArbitraryDataMap();
if (arbitraryDataMap != null && (! arbitraryDataMap.isEmpty())) { // If there is arbitrary data map
eventObject = new Object[size + 1];
eventObject[size] = event.getArbitraryDataMap();
} else {
eventObject = new Object[size];
}
int count = 0;
Object[] metaData = event.getMetaData();
Object[] correlationData = event.getCorrelationData();
Object[] payloadData = event.getPayloadData();
if (metaFlag) {
System.arraycopy(metaData, 0, eventObject, 0, metaData.length);
count += metaData.length;
}
if (correlationFlag) {
System.arraycopy(correlationData, 0, eventObject, count, correlationData.length);
count += correlationData.length;
}
if (payloadFlag) {
System.arraycopy(payloadData, 0, eventObject, count, payloadData.length);
count += payloadData.length;
}
return new org.wso2.siddhi.core.event.Event(event.getTimeStamp(), eventObject);
}
}