FlowManipulatorListenerRunner bug fix
[so.git] / bpmn / MSOCommonBPMN / src / main / java / org / onap / so / bpmn / common / listener / flowmanipulator / FlowManipulatorListenerRunner.java
1 /*-
2  * ============LICENSE_START=======================================================
3  * ONAP - SO
4  * ================================================================================
5  * Copyright (C) 2017 - 2019 AT&T Intellectual Property. All rights reserved.
6  * ================================================================================
7  * Copyright (C) 2020 Nokia.
8  * ================================================================================
9  * Licensed under the Apache License, Version 2.0 (the "License");
10  * you may not use this file except in compliance with the License.
11  * You may obtain a copy of the License at
12  * 
13  *      http://www.apache.org/licenses/LICENSE-2.0
14  * 
15  * Unless required by applicable law or agreed to in writing, software
16  * distributed under the License is distributed on an "AS IS" BASIS,
17  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
18  * See the License for the specific language governing permissions and
19  * limitations under the License.
20  * ============LICENSE_END=========================================================
21  */
22
23 package org.onap.so.bpmn.common.listener.flowmanipulator;
24
25 import java.util.ArrayList;
26 import java.util.HashMap;
27 import java.util.List;
28 import java.util.Optional;
29 import java.util.stream.Collectors;
30 import javax.annotation.PostConstruct;
31 import org.onap.so.bpmn.common.BBConstants;
32 import org.onap.so.bpmn.common.BuildingBlockExecution;
33 import org.onap.so.bpmn.servicedecomposition.entities.ExecuteBuildingBlock;
34 import org.onap.so.listener.ListenerRunner;
35 import org.slf4j.Logger;
36 import org.slf4j.LoggerFactory;
37 import org.springframework.stereotype.Component;
38
39 @Component
40 public class FlowManipulatorListenerRunner extends ListenerRunner {
41
42     private static Logger logger = LoggerFactory.getLogger(FlowManipulatorListenerRunner.class);
43
44     protected List<FlowManipulator> flowManipulators;
45
46     @PostConstruct
47     protected void init() {
48
49         flowManipulators = new ArrayList<>(
50                 Optional.ofNullable(context.getBeansOfType(FlowManipulator.class)).orElse(new HashMap<>()).values());
51
52     }
53
54     public void modifyFlows(List<ExecuteBuildingBlock> flowsToExecute, BuildingBlockExecution execution) {
55         int sequenceBeforeFlowManipulator;
56         do {
57             sequenceBeforeFlowManipulator = execution.getVariable(BBConstants.G_CURRENT_SEQUENCE);
58             ExecuteBuildingBlock currentBB = flowsToExecute.get(execution.getCurrentSequence());
59             List<FlowManipulator> filtered = filterListeners(flowManipulators,
60                     (item -> item.shouldRunFor(currentBB.getBuildingBlock().getBpmnFlowName(),
61                             execution.getCurrentSequence() == 0, execution)));
62
63             logger.info("Running flow manipulators:\n{}",
64                     filtered.stream().map(item -> item.getClass().getName()).collect(Collectors.joining("\n")));
65             filtered.forEach(item -> item.run(flowsToExecute, currentBB, execution));
66         } while (isBuildingBlockSkipped(sequenceBeforeFlowManipulator, execution));
67     }
68
69     private boolean isBuildingBlockSkipped(int sequenceBeforeFlowManipulator, BuildingBlockExecution execution) {
70         return sequenceBeforeFlowManipulator != (int) execution.getVariable(BBConstants.G_CURRENT_SEQUENCE);
71     }
72 }