| 1 | /* |
| 2 | * Copyright (c) 2005-2010, WSO2 Inc. (http://www.wso2.org) All Rights Reserved. |
| 3 | * |
| 4 | * WSO2 Inc. licenses this file to you under the Apache License, |
| 5 | * Version 2.0 (the "License"); you may not use this file except |
| 6 | * in compliance with the License. |
| 7 | * You may obtain a copy of the License at |
| 8 | * |
| 9 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 10 | * |
| 11 | * Unless required by applicable law or agreed to in writing, |
| 12 | * software distributed under the License is distributed on an |
| 13 | * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| 14 | * KIND, either express or implied. See the License for the |
| 15 | * specific language governing permissions and limitations |
| 16 | * under the License. |
| 17 | */ |
| 18 | package org.wso2.siddhi.core.stream.packer; |
| 19 | |
| 20 | import org.wso2.siddhi.core.event.ComplexEvent; |
| 21 | import org.wso2.siddhi.core.event.Event; |
| 22 | import org.wso2.siddhi.core.event.ListEvent; |
| 23 | import org.wso2.siddhi.core.projector.QueryProjector; |
| 24 | import org.wso2.siddhi.core.stream.StreamElement; |
| 25 | import org.wso2.siddhi.core.stream.StreamProcessor; |
| 26 | |
| 27 | public class SingleStreamPacker implements StreamPacker, StreamProcessor { |
| 28 | protected QueryProjector queryProjector; |
| 29 | protected StreamElement prevStreamElement; |
| 30 | |
| 31 | @Override |
| 32 | public void process(ComplexEvent complexEvent) { |
| 33 | if (complexEvent instanceof Event) { |
| 34 | queryProjector.process((Event)complexEvent); |
| 35 | } else if (complexEvent instanceof ListEvent) { |
| 36 | queryProjector.process((ListEvent)complexEvent); |
| 37 | } |
| 38 | } |
| 39 | |
| 40 | @Override |
| 41 | public void setPrevious(StreamElement streamElement) { |
| 42 | this.prevStreamElement = streamElement; |
| 43 | } |
| 44 | |
| 45 | // @Override |
| 46 | // public String getStreamId() { |
| 47 | // return prevStreamElement.getStreamId(); |
| 48 | // } |
| 49 | // |
| 50 | // @Override |
| 51 | // public SchedulerQueue<StreamEvent> getWindow() { |
| 52 | // return prevStreamElement.getWindow(); |
| 53 | // } |
| 54 | |
| 55 | @Override |
| 56 | public void setNext(QueryProjector queryProjector) { |
| 57 | this.queryProjector = queryProjector; |
| 58 | } |
| 59 | } |