1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
|
/**
* Copyright (c) 2017 ZTE Corporation.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* and the Apache License 2.0 which both accompany this distribution,
* and are available at http://www.eclipse.org/legal/epl-v10.html
* and http://www.apache.org/licenses/LICENSE-2.0
*
* Contributors:
* ZTE - initial API and implementation and/or initial documentation
*/
import { Injectable } from '@angular/core';
import { WorkflowNode } from "../model/workflow/workflow-node";
import { DataAccessService } from "./data-access/data-access.service";
import { Observable } from "rxjs/Observable";
import { Workflow } from "../model/workflow/workflow";
import { Position } from "../model/workflow/position";
import { NodeType } from "../model/workflow/node-type.enum";
import { StartEvent } from "../model/workflow/start-event";
import { SequenceFlow } from "../model/workflow/sequence-flow";
import { RestTask } from "../model/workflow/rest-task";
import { PlanTreeviewItem } from "../model/plan-treeview-item";
/**
* WorkflowService
* provides all of the operations about workflow operations.
*/
@Injectable()
export class WorkflowService {
public workflow: Workflow;
constructor(private dataAccessService: DataAccessService) {
}
public save(): Observable<boolean> {
console.log(this.workflow);
return this.dataAccessService.catalogService.saveWorkflow(this.workflow);
}
public addNode(name: string, type: string, top: number, left: number): WorkflowNode {
let node: WorkflowNode;
switch (type) {
case NodeType[NodeType.startEvent]:
node = new StartEvent(this.createId(), name, type, new Position(top, left), []);
break;
case NodeType[NodeType.restTask]:
node = new RestTask(this.createId(), name, type, new Position(top, left), []);
break;
default:
node = new WorkflowNode(this.createId(), name, type, new Position(top, left), []);
break;
}
this.workflow.nodes.push(node);
return node;
}
public deleteNode(nodeId: string): WorkflowNode {
// delete related connections
this.workflow.nodes.forEach(node => this.deleteSequenceFlow(node.id, nodeId));
// delete current node
const index = this.workflow.nodes.findIndex(node => node.id === nodeId);
if (index !== -1) {
const node = this.workflow.nodes.splice(index, 1)[0];
node.sequenceFlows = [];
return node;
}
return undefined;
}
public addSequenceFlow(sourceId: string, targetId: string) {
const node = this.getNodeById(sourceId);
if (node) {
const index = node.sequenceFlows.findIndex(sequenceFlow => sequenceFlow.targetRef === targetId);
if (index === -1) {
node.sequenceFlows.push(new SequenceFlow(sourceId, targetId));
}
}
}
public deleteSequenceFlow(sourceId: string, targetId: string) {
const node = this.getNodeById(sourceId);
if (node) {
const index = node.sequenceFlows.findIndex(sequenceFlow => sequenceFlow.targetRef === targetId);
if (index !== -1) {
node.sequenceFlows.splice(index, 1);
}
}
}
public getPlanParameters(nodeId: string): PlanTreeviewItem[] {
const preNodeList = new Array<WorkflowNode>();
this.getPreNodes(nodeId, preNodeList);
return this.loadNodeOutputs(preNodeList);
}
private loadNodeOutputs(nodes: WorkflowNode[]): PlanTreeviewItem[] {
const params = new Array<PlanTreeviewItem>();
nodes.forEach(node => {
switch (node.type) {
case NodeType[NodeType.startEvent]:
params.push(this.loadOutput4StartEvent(<StartEvent>node));
break;
case NodeType[NodeType.restTask]:
// TODO for rest task
break;
default:
break;
}
});
return params;
}
private loadOutput4StartEvent(node: StartEvent): PlanTreeviewItem {
const startItem = new PlanTreeviewItem(node.name, `[${node.id}]`, []);
node.parameters.map(param =>
startItem.children.push(new PlanTreeviewItem(param.name, `[${param.name}]`, [])));
return startItem;
}
public getPreNodes(nodeId: string, preNodes: WorkflowNode[]) {
const preNode4CurrentNode = [];
this.workflow.nodes.forEach(node => {
if (this.isPreNode(node, nodeId)) {
const existNode = preNodes.find(tmpNode => tmpNode.id === node.id);
if (existNode) {
// current node already exists in preNodes. this could avoid loop circle.
} else {
preNode4CurrentNode.push(node);
preNodes.push(node);
}
}
});
preNode4CurrentNode.forEach(node => this.getPreNodes(node.id, preNodes));
}
public isPreNode(preNode: WorkflowNode, id: string): boolean {
const targetNode = preNode.sequenceFlows.find(connection => connection.targetRef === id);
return targetNode !== undefined;
}
public getNodeById(sourceId: string): WorkflowNode {
return this.workflow.nodes.find(node => node.id === sourceId);
}
private createId() {
const idSet = new Set();
this.workflow.nodes.forEach(node => idSet.add(node.id));
for (let i = 0; i < idSet.size; i++) {
if (!idSet.has('node' + i)) {
return 'node' + i;
}
}
return 'node' + idSet.size;
}
}
|
