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 *     bjalon
018 */
019package org.nuxeo.ecm.mobile.webengine.adapter;
020
021import java.io.IOException;
022import java.io.Serializable;
023import java.util.HashMap;
024import java.util.Map;
025
026import javax.ws.rs.GET;
027
028import org.apache.commons.logging.Log;
029import org.apache.commons.logging.LogFactory;
030import org.nuxeo.ecm.core.api.Blobs;
031import org.nuxeo.ecm.core.api.DocumentModel;
032import org.nuxeo.ecm.core.api.PropertyException;
033import org.nuxeo.ecm.core.api.blobholder.BlobHolder;
034import org.nuxeo.ecm.core.api.blobholder.SimpleBlobHolder;
035import org.nuxeo.ecm.core.convert.api.ConversionException;
036import org.nuxeo.ecm.core.convert.api.ConversionService;
037import org.nuxeo.ecm.mobile.webengine.document.MobileDocument;
038import org.nuxeo.ecm.platform.preview.helper.PreviewHelper;
039import org.nuxeo.ecm.webengine.WebException;
040import org.nuxeo.ecm.webengine.model.WebAdapter;
041import org.nuxeo.runtime.api.Framework;
042
043/**
044 * @author <a href="mailto:bjalon@nuxeo.com">Benjamin JALON</a>
045 * @since 5.5
046 */
047@WebAdapter(name = "preview", type = "Preview", targetType = "MobileDocument")
048public class PreviewAdapter extends DefaultMobileAdapter {
049    private static final Log log = LogFactory.getLog(PreviewAdapter.class);
050
051    private String nuxeoContextPath;
052
053    @GET
054    public Object doGet() {
055        return getView("index");
056    }
057
058    public String getPreviewURL() {
059        Object targetObject = ctx.getTargetObject();
060        if (!(targetObject instanceof MobileDocument)) {
061            throw new WebException("Target Object must be MobileDocument");
062        }
063        return getNuxeoContextPath() + "/" + PreviewHelper.getPreviewURL(((MobileDocument) targetObject).getDocument());
064    }
065
066    public String getPreviewContent() throws PropertyException {
067        Object targetObject = ctx.getTargetObject();
068        if (!(targetObject instanceof MobileDocument)) {
069            throw new WebException("Target Object must be MobileDocument");
070        }
071        DocumentModel document = ((MobileDocument) targetObject).getDocument();
072        if (!document.hasSchema("note")) {
073            throw new WebException("Can't produce preview for this document type");
074        }
075        String content = (String) document.getPropertyValue("note:note");
076        String mimetype = (String) document.getPropertyValue("note:mime_type");
077        return convertToHtml(content, mimetype);
078    }
079
080    private String convertToHtml(String text, String mimeType) {
081        BlobHolder bh = new SimpleBlobHolder(Blobs.createBlob(text, mimeType, "UTF-8"));
082        Map<String, Serializable> parameters = new HashMap<String, Serializable>();
083        parameters.put("bodyContentOnly", Boolean.TRUE);
084        try {
085            bh = Framework.getLocalService(ConversionService.class).convertToMimeType("text/html", bh, parameters);
086            text = bh.getBlob().getString();
087        } catch (ConversionException | IOException e) {
088            log.error("Failed to convert to HTML.", e);
089        }
090        return text;
091    }
092
093    private String getNuxeoContextPath() {
094        if (nuxeoContextPath == null) {
095            nuxeoContextPath = Framework.getProperty("org.nuxeo.ecm.contextPath");
096        }
097        return nuxeoContextPath;
098    }
099
100}