Added services and models

src/app/core/tasks/models/claimed-task-object.model.ts

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+import { TaskObject } from './task-object.model';
+
+export class ClaimedTask extends TaskObject {
+
+}

src/app/core/tasks/models/normalized-claimed-task-object.model.ts

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+import { NormalizedTaskObject } from './normalized-task-object.model';
+import { mapsTo, relationship } from '../../cache/builders/build-decorators';
+import { autoserialize, inheritSerialization } from 'cerialize';
+import { ClaimedTask } from './claimed-task-object.model';
+import { ResourceType } from '../../shared/resource-type';
+
+/**
+ * A model class for a NormalizedClaimedTaskObject.
+ */
+@mapsTo(ClaimedTask)
+@inheritSerialization(NormalizedTaskObject)
+export class NormalizedClaimedTask extends NormalizedTaskObject {
+
+  /**
+   * The task identifier
+   */
+  @autoserialize
+  id: string;
+
+  /**
+   * The workflow step
+   */
+  @autoserialize
+  step: string;
+
+  /**
+   * The task action type
+   */
+  @autoserialize
+  action: string;
+
+  /**
+   * The workflowitem object whom this task is related
+   */
+  @autoserialize
+  @relationship(ResourceType.Workflowitem, false)
+  workflowitem: string;
+
+}

src/app/core/tasks/models/normalized-pool-task-object.model.ts

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+import { NormalizedTaskObject } from './normalized-task-object.model';
+import { PoolTask } from './pool-task-object.model';
+import { autoserialize, inheritSerialization } from 'cerialize';
+import { mapsTo, relationship } from '../../cache/builders/build-decorators';
+import { ResourceType } from '../../shared/resource-type';
+
+/**
+ * A model class for a NormalizedPoolTaskObject.
+ */
+@mapsTo(PoolTask)
+@inheritSerialization(NormalizedTaskObject)
+export class NormalizedPoolTask extends NormalizedTaskObject {
+
+  /**
+   * The task identifier
+   */
+  @autoserialize
+  id: string;
+
+  /**
+   * The workflow step
+   */
+  @autoserialize
+  step: string;
+
+  /**
+   * The task action type
+   */
+  @autoserialize
+  action: string;
+
+  /**
+   * The workflowitem object whom this task is related
+   */
+  @autoserialize
+  @relationship(ResourceType.Workflowitem, false)
+  workflowitem: string;
+}

src/app/core/tasks/models/normalized-task-object.model.ts

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+import { autoserialize, inheritSerialization } from 'cerialize';
+import { mapsTo, relationship } from '../../cache/builders/build-decorators';
+import { ResourceType } from '../../shared/resource-type';
+import { NormalizedDSpaceObject } from '../../cache/models/normalized-dspace-object.model';
+import { TaskObject } from './task-object.model';
+
+/**
+ * An abstract model class for a DSpaceObject.
+ */
+@mapsTo(TaskObject)
+@inheritSerialization(NormalizedDSpaceObject)
+export abstract class NormalizedTaskObject extends NormalizedDSpaceObject {
+
+  /**
+   * The task identifier
+   */
+  @autoserialize
+  id: string;
+
+  /**
+   * The workflow step
+   */
+  @autoserialize
+  step: string;
+
+  /**
+   * The task action type
+   */
+  @autoserialize
+  action: string;
+
+  /**
+   * The workflowitem object whom this task is related
+   */
+  @autoserialize
+  @relationship(ResourceType.Workflowitem, false)
+  workflowitem: string;
+}

src/app/core/tasks/models/pool-task-object.model.ts

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+import { TaskObject } from './task-object.model';
+
+export class PoolTask extends TaskObject {
+
+}

src/app/core/tasks/models/process-task-response.ts

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+import { RemoteDataError } from '../../data/remote-data-error';
+
+/**
+ * A class to represent the data retrieved by after processing a task
+ */
+export class ProcessTaskResponse {
+  constructor(
+    private isSuccessful: boolean,
+    public error?: RemoteDataError,
+    public payload?: any
+  ) {
+  }
+
+  get hasSucceeded(): boolean {
+    return this.isSuccessful;
+  }
+}

src/app/core/tasks/models/task-object.model.ts

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+import { Observable } from 'rxjs';
+
+import { CacheableObject } from '../../cache/object-cache.reducer';
+import { DSpaceObject } from '../../shared/dspace-object.model';
+import { ListableObject } from '../../../shared/object-collection/shared/listable-object.model';
+import { RemoteData } from '../../data/remote-data';
+import { Workflowitem } from '../../submission/models/workflowitem.model';
+
+export class TaskObject extends DSpaceObject implements CacheableObject, ListableObject {
+
+  /**
+   * The task identifier
+   */
+  id: string;
+
+  /**
+   * The workflow step
+   */
+  step: string;
+
+  /**
+   * The task action type
+   */
+  action: string;
+
+  /**
+   * The workflowitem object whom this task is related
+   */
+  workflowitem: Observable<RemoteData<Workflowitem>> | Workflowitem;
+}