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 java.io.IOException;
022
023import org.nuxeo.ecm.automation.OperationContext;
024import org.nuxeo.ecm.automation.OperationException;
025import org.nuxeo.ecm.automation.core.Constants;
026import org.nuxeo.ecm.automation.core.annotations.Context;
027import org.nuxeo.ecm.automation.core.annotations.Operation;
028import org.nuxeo.ecm.automation.core.annotations.OperationMethod;
029import org.nuxeo.ecm.automation.core.annotations.Param;
030import org.nuxeo.ecm.automation.core.scripting.Scripting.GroovyScript;
031import org.nuxeo.ecm.automation.core.scripting.Scripting.MvelScript;
032import org.nuxeo.ecm.core.api.Blob;
033import org.nuxeo.ecm.core.api.Blobs;
034
035/**
036 * Run a script given as the input of the operation (as a blob). Note that this operation is available only as
037 * administrator
038 *
039 * @author <a href="mailto:[email protected]">Bogdan Stefanescu</a>
040 */
041@Operation(id = RunInputScript.ID, category = Constants.CAT_SCRIPTING, label = "Run Input Script", description = "Run a script from the input blob. A blob comtaining script result is returned.", aliases = { "Context.RunInputScript" })
042public class RunInputScript {
043
044    public static final String ID = "RunInputScript";
045
046    @Context
047    protected OperationContext ctx;
048
049    @Param(name = "type", required = false, values = { "mvel", "groovy" }, widget = Constants.W_OPTION)
050    protected String type = "mvel";
051
052    @OperationMethod
053    public Blob run(Blob blob) throws OperationException, IOException {
054        if (!ctx.getPrincipal().isAdministrator()) {
055            throw new OperationException("Not allowed. You must be administrator to run scripts");
056        }
057        Object r = null;
058        if (type.equals("mvel")) {
059            r = MvelScript.compile(blob.getString()).eval(ctx);
060        } else if (type.equals("groovy")) {
061            r = new GroovyScript(blob.getString()).eval(ctx);
062        } else {
063            throw new OperationException("Unknown scripting language " + type);
064        }
065        if (r != null) {
066            Blob b = Blobs.createBlob(r.toString());
067            b.setFilename("result");
068            return b;
069        }
070        return null;
071    }
072
073}