| 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.sequence; |
| 19 | |
| 20 | import org.wso2.siddhi.core.event.AtomicEvent; |
| 21 | import org.wso2.siddhi.core.event.ComplexEvent; |
| 22 | import org.wso2.siddhi.core.event.in.StateEvent; |
| 23 | import org.wso2.siddhi.core.statemachine.sequence.OrSequenceState; |
| 24 | import org.wso2.siddhi.core.statemachine.sequence.SequenceState; |
| 25 | import org.wso2.siddhi.core.stream.packer.SingleStreamPacker; |
| 26 | import org.wso2.siddhi.core.stream.recevier.sequence.SequenceSingleStreamReceiver; |
| 27 | |
| 28 | public class SequenceStreamPacker extends SingleStreamPacker { |
| 29 | |
| 30 | protected SequenceSingleStreamReceiver streamReceiver; |
| 31 | protected SequenceState state; |
| 32 | protected SequenceState nextState; |
| 33 | |
| 34 | public SequenceStreamPacker(SequenceState state) { |
| 35 | this.state = state; |
| 36 | this.nextState = state.getNextState(); |
| 37 | } |
| 38 | |
| 39 | public void setStreamReceiver(SequenceSingleStreamReceiver streamReceiver) { |
| 40 | this.streamReceiver = streamReceiver; |
| 41 | } |
| 42 | |
| 43 | @Override |
| 44 | public void process(ComplexEvent complexEvent) { |
| 45 | //System.out.println("sp state=" + state.getStateNumber() + " event=" + complexEvent); |
| 46 | setEventState((StateEvent) complexEvent); |
| 47 | if (state.isLast()) { |
| 48 | sendEvent((StateEvent)complexEvent); |
| 49 | } |
| 50 | passToStreamReceivers((StateEvent) complexEvent); |
| 51 | } |
| 52 | |
| 53 | protected void setEventState(StateEvent eventBundle) { |
| 54 | eventBundle.setEventState(state.getStateNumber()); |
| 55 | } |
| 56 | |
| 57 | protected void sendEvent(AtomicEvent atomicEvent) { |
| 58 | queryProjector.process(atomicEvent); |
| 59 | } |
| 60 | |
| 61 | protected void passToStreamReceivers(StateEvent eventBundle) { |
| 62 | if (nextState != null) { |
| 63 | //System.out.println("->" + nextState.getStateNumber()); |
| 64 | if (nextState instanceof OrSequenceState) { |
| 65 | //System.out.println("->" + ((OrSequenceState) nextState).getPartnerState().getStateNumber()); |
| 66 | ((OrSequenceState) nextState).getPartnerState().getSequenceSingleStreamReceiver().addToNextEvents(eventBundle); |
| 67 | } |
| 68 | nextState.getSequenceSingleStreamReceiver().addToNextEvents(eventBundle); |
| 69 | } |
| 70 | } |
| 71 | } |