001/* 002 * (C) Copyright 2012 Nuxeo SA (http://nuxeo.com/) and others. 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * http://www.apache.org/licenses/LICENSE-2.0 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 * 016 * Contributors: 017 * Antoine Taillefer <ataillefer@nuxeo.com> 018 */ 019package org.nuxeo.drive.operations; 020 021import java.io.IOException; 022 023import org.nuxeo.drive.adapter.FileSystemItem; 024import org.nuxeo.drive.service.FileSystemItemManager; 025import org.nuxeo.ecm.automation.OperationContext; 026import org.nuxeo.ecm.automation.core.Constants; 027import org.nuxeo.ecm.automation.core.annotations.Context; 028import org.nuxeo.ecm.automation.core.annotations.Operation; 029import org.nuxeo.ecm.automation.core.annotations.OperationMethod; 030import org.nuxeo.ecm.automation.core.annotations.Param; 031import org.nuxeo.ecm.core.api.Blob; 032import org.nuxeo.ecm.core.api.Blobs; 033import org.nuxeo.runtime.api.Framework; 034 035/** 036 * Check if the {@link FileSystemItem} with the given id exists for the currently authenticated user. 037 * 038 * @author Antoine Taillefer 039 */ 040@Operation(id = NuxeoDriveFileSystemItemExists.ID, category = Constants.CAT_SERVICES, label = "Nuxeo Drive: File system item exists") 041public class NuxeoDriveFileSystemItemExists { 042 043 public static final String ID = "NuxeoDrive.FileSystemItemExists"; 044 045 @Context 046 protected OperationContext ctx; 047 048 @Param(name = "id") 049 protected String id; 050 051 @OperationMethod 052 public Blob run() throws IOException { 053 FileSystemItemManager fileSystemItemManager = Framework.getService(FileSystemItemManager.class); 054 boolean exists = fileSystemItemManager.exists(id, ctx.getPrincipal()); 055 return Blobs.createJSONBlobFromValue(exists); 056 } 057 058}