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eFaps is a framework used to map objects with or without attached files to a relational database and optional file systems (only for attaches files). Configurable access control can be provided down to object and attribute level depending on implementation and use case. Depending on requirements, events (like triggers) allow to implement business logic and to separate business logic from user interface. The framework includes integrations (e.g. webdav, full text search) and a web application as 'simple' configurable user interface. Some best practises, example web application modules (e.g. team work module) support administrators and implementers using this framework.

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/*
 * Copyright 2003 - 2013 The eFaps Team
 *
 * 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.
 *
 * Revision:        $Rev$
 * Last Changed:    $Date$
 * Last Changed By: $Author$
 */

package org.efaps.rest;

import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.Date;
import java.util.Map;
import java.util.Map.Entry;
import java.util.TreeMap;

import javax.ws.rs.Consumes;
import javax.ws.rs.GET;
import javax.ws.rs.POST;
import javax.ws.rs.Path;

import org.efaps.admin.AppConfigHandler;
import org.efaps.update.FileType;
import org.efaps.update.Install;
import org.efaps.update.util.InstallationException;
import org.efaps.util.EFapsException;
import org.efaps.util.cache.CacheReloadException;
import org.glassfish.jersey.media.multipart.BodyPart;
import org.glassfish.jersey.media.multipart.BodyPartEntity;
import org.glassfish.jersey.media.multipart.MultiPart;
import org.glassfish.jersey.media.multipart.MultiPartMediaTypes;

/**
 * Rest API to update files in eFaps.
 *
 * @author The eFaps Team
 * @version $Id$
 */
@Path("/update")
public class Update
    extends AbstractRest
{
    /**
     * Name of the folder inside the "official" temporary folder.
     */
    public static final String TMPFOLDERNAME = "eFapsUpdate";

    /**
     * Called on post to consume files used to update.
     *
     * @param _multiPart Mulitpart containing the update files
     */
    @POST
    @Consumes(MultiPartMediaTypes.MULTIPART_MIXED)
    public void updateFromFile(final MultiPart _multiPart)
    {
        try {
            if (hasAccess()) {
                AbstractRest.LOG.info("===Start of Update via REST===");
                File tmpfld = AppConfigHandler.get().getTempFolder();
                if (tmpfld == null) {
                    final File temp = File.createTempFile("eFaps", ".tmp");
                    tmpfld = temp.getParentFile();
                    temp.delete();
                }
                final File updateFolder = new File(tmpfld, Update.TMPFOLDERNAME);
                if (!updateFolder.exists()) {
                    updateFolder.mkdirs();
                }
                final File dateFolder = new File(updateFolder, ((Long) new Date().getTime()).toString());
                dateFolder.mkdirs();

                final Map files = new TreeMap();
                for (final BodyPart part : _multiPart.getBodyParts()) {
                    final BodyPartEntity entity = (BodyPartEntity) part.getEntity();
                    final InputStream in = entity.getInputStream();

                    final File file = new File(dateFolder, part.getContentDisposition().getFileName());

                    final FileOutputStream out = new FileOutputStream(file);
                    final byte[] buf = new byte[1024];
                    int len;
                    while ((len = in.read(buf)) > 0) {
                        out.write(buf, 0, len);
                    }
                    out.close();
                    in.close();

                    final String ending = file.getName().substring(file.getName().lastIndexOf(".") + 1);

                    final FileType filetype = FileType.getFileTypeByExensione(ending);

                    AbstractRest.LOG.info("= Receieved: '{}'", file.getName());
                    if (filetype != null) {
                        files.put(file, filetype);
                    }
                }
                if (!files.isEmpty()) {
                    final Install install = new Install(true);
                    for (final Entry entry : files.entrySet()) {
                        AbstractRest.LOG.info("...Adding to Update: '{}' ", entry.getKey().getName());
                        install.addFile(entry.getKey().toURI().toURL(), entry.getValue().getType());
                    }
                    install.updateLatest(null);
                }
                AbstractRest.LOG.info("===End of Update via REST===");
            }
        } catch (final IOException e) {
            AbstractRest.LOG.error("IOException", e);
        } catch (final InstallationException e) {
            AbstractRest.LOG.error("InstallationException", e);
        } catch (final CacheReloadException e) {
            AbstractRest.LOG.error("CacheReloadException", e);
        } catch (final EFapsException e) {
            AbstractRest.LOG.error("EFapsException", e);
        }
    }

    /**
     * @return not implemented.
     */
    @GET
    public String test()
    {
        String ret = "";
        try {
            if (hasAccess()) {
                ret = "not implemented yet";
            }
        } catch (final CacheReloadException e) {
            AbstractRest.LOG.error("CacheReloadException", e);
        } catch (final EFapsException e) {
            AbstractRest.LOG.error("EFapsException", e);
        }
        return ret;
    }
}