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process-content.service.ts
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process-content.service.ts
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/*!
* @license
* Copyright © 2005-2024 Hyland Software, Inc. and its affiliates. All rights reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
import { AlfrescoApiService } from '@alfresco/adf-core';
import { Injectable } from '@angular/core';
import {
ActivitiContentApi,
RelatedContentRepresentation,
ResultListDataRepresentationRelatedProcessTask,
ResultListDataRepresentationRelatedContentRepresentation
} from '@alfresco/js-api';
import { Observable, from, throwError } from 'rxjs';
import { catchError } from 'rxjs/operators';
@Injectable({
providedIn: 'root'
})
export class ProcessContentService {
static UNKNOWN_ERROR_MESSAGE: string = 'Unknown error';
static GENERIC_ERROR_MESSAGE: string = 'Server error';
private _contentApi: ActivitiContentApi;
get contentApi(): ActivitiContentApi {
this._contentApi = this._contentApi ?? new ActivitiContentApi(this.apiService.getInstance());
return this._contentApi;
}
constructor(private apiService: AlfrescoApiService) {}
/**
* Create temporary related content from an uploaded file.
*
* @param file File to use for content
* @returns The created content data
*/
createTemporaryRawRelatedContent(file: any): Observable<RelatedContentRepresentation> {
return from(this.contentApi.createTemporaryRawRelatedContent(file)).pipe(catchError((err) => this.handleError(err)));
}
/**
* Gets the metadata for a related content item.
*
* @param contentId ID of the content item
* @returns Metadata for the content
*/
getFileContent(contentId: number): Observable<RelatedContentRepresentation> {
return from(this.contentApi.getContent(contentId)).pipe(catchError((err) => this.handleError(err)));
}
/**
* Gets raw binary content data for a related content file.
*
* @param contentId ID of the related content
* @returns Binary data of the related content
*/
getFileRawContent(contentId: number): Observable<Blob> {
return from(this.contentApi.getRawContent(contentId)).pipe(catchError((err) => this.handleError(err)));
}
/**
* Gets the preview for a related content file.
*
* @param contentId ID of the related content
* @returns Binary data of the content preview
*/
getContentPreview(contentId: number): Observable<Blob> {
return new Observable((observer) => {
this.contentApi.getRawContent(contentId).then(
(result) => {
observer.next(result);
observer.complete();
},
() => {
this.contentApi.getRawContent(contentId).then(
(data) => {
observer.next(data);
observer.complete();
},
(err) => {
observer.error(err);
observer.complete();
}
);
}
);
});
}
/**
* Gets a URL for direct access to a related content file.
*
* @param contentId ID of the related content
* @returns URL to access the content
*/
getFileRawContentUrl(contentId: number): string {
return this.contentApi.getRawContentUrl(contentId);
}
/**
* Gets the thumbnail for a related content file.
*
* @param contentId ID of the related content
* @returns Binary data of the thumbnail image
*/
getContentThumbnail(contentId: number): Observable<Blob> {
return from(this.contentApi.getRawContent(contentId, 'thumbnail')).pipe(catchError((err) => this.handleError(err)));
}
/**
* Gets related content items for a task instance.
*
* @param taskId ID of the target task
* @param opts Options supported by JS-API
* @returns Metadata for the content
*/
getTaskRelatedContent(taskId: string, opts?: any): Observable<ResultListDataRepresentationRelatedContentRepresentation> {
return from(this.contentApi.getRelatedContentForTask(taskId, opts)).pipe(catchError((err) => this.handleError(err)));
}
/**
* Gets related content items for a process instance.
*
* @param processId ID of the target process
* @param opts Options supported by JS-API
* @returns Metadata for the content
*/
getProcessRelatedContent(processId: string, opts?: any): Observable<ResultListDataRepresentationRelatedContentRepresentation> {
return from(this.contentApi.getRelatedContentForProcessInstance(processId, opts)).pipe(catchError((err) => this.handleError(err)));
}
/**
* Deletes related content.
*
* @param contentId Identifier of the content to delete
* @returns Null response that notifies when the deletion is complete
*/
deleteRelatedContent(contentId: number): Observable<any> {
return from(this.contentApi.deleteContent(contentId)).pipe(catchError((err) => this.handleError(err)));
}
/**
* Associates an uploaded file with a process instance.
*
* @param processInstanceId ID of the target process instance
* @param content File to associate
* @param opts Options supported by JS-API
* @returns Details of created content
*/
createProcessRelatedContent(processInstanceId: string, content: any, opts?: any): Observable<RelatedContentRepresentation> {
return from(this.contentApi.createRelatedContentOnProcessInstance(processInstanceId, content, opts)).pipe(
catchError((err) => this.handleError(err))
);
}
/**
* Associates an uploaded file with a task instance.
*
* @param taskId ID of the target task
* @param file File to associate
* @param opts Options supported by JS-API
* @returns Details of created content
*/
createTaskRelatedContent(taskId: string, file: any, opts?: any): Observable<RelatedContentRepresentation> {
return from(this.contentApi.createRelatedContentOnTask(taskId, file, opts)).pipe(catchError((err) => this.handleError(err)));
}
/**
* Lists processes and tasks on workflow started with provided document
*
* @param sourceId - id of the document that workflow or task has been started with
* @param source - source of the document that workflow or task has been started with
* @param size - size of the entries to get
* @param page - page number
* @returns Promise<ResultListDataRepresentationRelatedProcessTask>
*/
getProcessesAndTasksOnContent(
sourceId: string,
source: string,
size?: number,
page?: number
): Observable<ResultListDataRepresentationRelatedProcessTask> {
return from(this.contentApi.getProcessesAndTasksOnContent(sourceId, source, size, page)).pipe(catchError((err) => this.handleError(err)));
}
/**
* Creates a JSON representation of data.
*
* @param res Object representing data
* @returns JSON object
*/
toJson(res: any) {
if (res) {
return res || {};
}
return {};
}
/**
* Creates a JSON array representation of data.
*
* @param res Object representing data
* @returns JSON array object
*/
toJsonArray(res: any) {
if (res) {
return res.data || [];
}
return [];
}
/**
* Reports an error message.
*
* @param error Data object with optional `message` and `status` fields for the error
* @returns Callback when an error occurs
*/
handleError(error: any): Observable<any> {
let errMsg = ProcessContentService.UNKNOWN_ERROR_MESSAGE;
if (error) {
errMsg = error.message
? error.message
: error.status
? `${error.status} - ${error.statusText}`
: ProcessContentService.GENERIC_ERROR_MESSAGE;
}
return throwError(errMsg);
}
}