| 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.pattern; |
| 19 | |
| 20 | import org.wso2.siddhi.core.event.AtomicEvent; |
| 21 | import org.wso2.siddhi.core.event.in.StateEvent; |
| 22 | import org.wso2.siddhi.core.event.ComplexEvent; |
| 23 | import org.wso2.siddhi.core.statemachine.pattern.LogicPatternState; |
| 24 | import org.wso2.siddhi.core.statemachine.pattern.PatternState; |
| 25 | import org.wso2.siddhi.core.stream.packer.SingleStreamPacker; |
| 26 | import org.wso2.siddhi.core.stream.recevier.pattern.PatternSingleStreamReceiver; |
| 27 | |
| 28 | public class PatternStreamPacker extends SingleStreamPacker { |
| 29 | |
| 30 | protected PatternSingleStreamReceiver streamReceiver; |
| 31 | protected PatternState state; |
| 32 | protected PatternState nextState; |
| 33 | protected PatternState nextEveryState; |
| 34 | |
| 35 | public PatternStreamPacker(PatternState state) { |
| 36 | this.state = state; |
| 37 | this.nextState = state.getNextState(); |
| 38 | this.nextEveryState = state.getNextEveryState(); |
| 39 | } |
| 40 | |
| 41 | public void setStreamReceiver(PatternSingleStreamReceiver streamReceiver) { |
| 42 | this.streamReceiver = streamReceiver; |
| 43 | } |
| 44 | |
| 45 | @Override |
| 46 | public void process(ComplexEvent complexEvent) { |
| 47 | //System.out.println("pp state=" + state.getStateNumber() + " event=" + complexEvent); |
| 48 | setEventState((StateEvent) complexEvent); |
| 49 | if (state.isLast()) { |
| 50 | sendEvent((StateEvent)complexEvent); |
| 51 | } |
| 52 | passToStreamReceivers((StateEvent) complexEvent); |
| 53 | } |
| 54 | |
| 55 | protected void setEventState(StateEvent eventBundle) { |
| 56 | eventBundle.setEventState(state.getStateNumber()); |
| 57 | } |
| 58 | |
| 59 | protected void sendEvent(AtomicEvent atomicEvent) { |
| 60 | queryProjector.process(atomicEvent); |
| 61 | } |
| 62 | |
| 63 | protected void passToStreamReceivers(StateEvent eventBundle) { |
| 64 | if (nextState != null) { |
| 65 | //System.out.println("->" + nextState.getStateNumber()); |
| 66 | if (nextState instanceof LogicPatternState) { |
| 67 | //System.out.println("->" + ((LogicPatternState) nextState).getPartnerState().getStateNumber()); |
| 68 | ((LogicPatternState) nextState).getPartnerState().getPatternSingleStreamReceiver().addToNextEvents(eventBundle); |
| 69 | } |
| 70 | nextState.getPatternSingleStreamReceiver().addToNextEvents(eventBundle); |
| 71 | } |
| 72 | if (nextEveryState != null) { |
| 73 | //System.out.println("->" + nextEveryState.getStateNumber()); |
| 74 | StateEvent newStateEvent = eventBundle.cloneEvent(nextEveryState.getStateNumber()); |
| 75 | newStateEvent.setEventState(nextEveryState.getStateNumber() - 1); |
| 76 | if (nextEveryState instanceof LogicPatternState) { |
| 77 | //System.out.println("->" + ((LogicPatternState) nextEveryState).getPartnerState().getStateNumber()); |
| 78 | ((LogicPatternState) nextEveryState).getPartnerState().getPatternSingleStreamReceiver().addToNextEvents(newStateEvent); |
| 79 | } |
| 80 | nextEveryState.getPatternSingleStreamReceiver().addToNextEvents(newStateEvent); |
| 81 | } |
| 82 | } |
| 83 | } |