001/*
002 * (C) Copyright 2006-2011 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 *     bstefanescu
018 */
019package org.nuxeo.ecm.automation.core.operations;
020
021import org.nuxeo.ecm.automation.OperationContext;
022import org.nuxeo.ecm.automation.OperationException;
023import org.nuxeo.ecm.automation.core.Constants;
024import org.nuxeo.ecm.automation.core.annotations.Context;
025import org.nuxeo.ecm.automation.core.annotations.Operation;
026import org.nuxeo.ecm.automation.core.annotations.OperationMethod;
027import org.nuxeo.ecm.automation.core.annotations.Param;
028import org.nuxeo.ecm.automation.core.util.BlobList;
029import org.nuxeo.ecm.core.api.Blob;
030
031/**
032 * @author <a href="mailto:bs@nuxeo.com">Bogdan Stefanescu</a>
033 */
034@Operation(id = RestoreBlobsInput.ID, category = Constants.CAT_EXECUTION, label = "Restore Files Input", description = "Restore the file list input from a context variable given its name. Return the files.")
035public class RestoreBlobsInput {
036
037    public static final String ID = "Context.RestoreBlobsInput";
038
039    @Context
040    protected OperationContext ctx;
041
042    @Param(name = "name")
043    protected String name;
044
045    @OperationMethod
046    public BlobList run() throws OperationException {
047        Object obj = ctx.get(name);
048        if (obj instanceof BlobList) {
049            return (BlobList) obj;
050        } else if (obj instanceof Blob) {
051            return new BlobList((Blob) obj);
052        }
053        throw new OperationException(
054                "Illegal state error for restore files operation. The context map doesn't contains a file list variable with name "
055                        + name);
056    }
057
058}