4 files changed, 140 insertions, 0 deletions
diff --git a/sdc-workflow-designer-ui/src/app/services/data-access/catalog.service.ts b/sdc-workflow-designer-ui/src/app/services/data-access/catalog.service.ts
new file mode 100644
index 00000000..5eaf6351
--- /dev/null
+++ b/sdc-workflow-designer-ui/src/app/services/data-access/catalog.service.ts
@@ -0,0 +1,31 @@
+/**
+ * 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-node";
+import { Observable } from "rxjs/Observable";
+import { HttpService } from "../../util/http.service";
+import { Workflow } from "../../model/workflow";
+
+/**
+ * CatalogService
+ * provides data access from backend
+ */
+@Injectable()
+export abstract class CatalogService {
+
+    constructor(protected httpService: HttpService) {}
+
+    public abstract loadWorkflow(workflowId: string): Observable<Workflow>;
+
+    public abstract saveWorkflow(workflow: Workflow): Observable<boolean>;
+}
diff --git a/sdc-workflow-designer-ui/src/app/services/data-access/data-access.service.ts b/sdc-workflow-designer-ui/src/app/services/data-access/data-access.service.ts
new file mode 100644
index 00000000..451d7a2b
--- /dev/null
+++ b/sdc-workflow-designer-ui/src/app/services/data-access/data-access.service.ts
@@ -0,0 +1,27 @@
+/**
+ * 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 { CatalogService } from "./catalog.service";
+import { SdcService } from "./sdc.service";
+import { HttpService } from "../../util/http.service";
+
+/**
+ * DataAccessService
+ * provides data access from backend
+ */
+@Injectable()
+export class DataAccessService {
+    constructor(private httpService: HttpService) {}
+
+    public catalogService: CatalogService = new SdcService(this.httpService);
+}
diff --git a/sdc-workflow-designer-ui/src/app/services/data-access/in-memory-data.service.ts b/sdc-workflow-designer-ui/src/app/services/data-access/in-memory-data.service.ts
new file mode 100644
index 00000000..1609c948
--- /dev/null
+++ b/sdc-workflow-designer-ui/src/app/services/data-access/in-memory-data.service.ts
@@ -0,0 +1,33 @@
+/**
+ * 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 { InMemoryDbService } from 'angular-in-memory-web-api';
+/**
+ * InMemeoryDataService
+ * Mock backend data
+ */
+export class InMemoryDataService implements InMemoryDbService {
+    createDb() {
+        const workflows = [{
+            id: 'workflow1',
+            name:'workflow1',
+            nodes: []
+        },{
+            id:'workflow2',
+            name: 'workflow2',
+            nodes: []
+        }
+    ];
+        return {workflows};
+    }
+}
diff --git a/sdc-workflow-designer-ui/src/app/services/data-access/sdc.service.ts b/sdc-workflow-designer-ui/src/app/services/data-access/sdc.service.ts
new file mode 100644
index 00000000..cec6ae25
--- /dev/null
+++ b/sdc-workflow-designer-ui/src/app/services/data-access/sdc.service.ts
@@ -0,0 +1,49 @@
+/**
+ * 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 { CatalogService } from "./catalog.service";
+import { Observable } from "rxjs/Observable";
+import { WorkflowNode } from "../../model/workflow-node";
+import { HttpService } from "../../util/http.service";
+import { Workflow } from "../../model/workflow";
+
+/**
+ * SdcService
+ * provides data access from sdc
+ */
+@Injectable()
+export class SdcService extends CatalogService {
+
+    constructor(protected httpService: HttpService) {
+        super(httpService);
+    }
+
+    public loadWorkflows(): Observable<WorkflowNode[]> {
+        // TODO load data from sdc
+        const url = 'api/workflows';
+        return this.httpService.get(url);
+    }
+
+    public loadWorkflow(workflowId: string): Observable<Workflow> {
+        // TODO load data from sdc
+        const url = `api/workflows/${workflowId}`;
+        return this.httpService.get(url).map(response => response.data);
+    }
+
+    public saveWorkflow(workflow: Workflow): Observable<boolean> {
+        // TODO save workflow design to sdc
+        const url = `api/workflows/${workflow.id}`;
+        return this.httpService.put(url, JSON.stringify(workflow)).map(() => true);
+    }
+
+}