it.biztech.btable.api.FileApi.java Source code

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Here is the source code for it.biztech.btable.api.FileApi.java

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/*
 * This Source Code Form is subject to the terms of the Mozilla Public License, v. 2.0.
 * If a copy of the MPL was not distributed with this file, You can obtain one at
 * http://mozilla.org/MPL/2.0/.
 *
 * Covered Software is provided under this License on an as is basis,
 * without warranty of any kind, either expressed, implied, or statutory,
 * including, without limitation, warranties that the Covered Software is
 * free of defects, merchantable, fit for a particular purpose or non-infringing.
 * The entire risk as to the quality and performance of the Covered Software is with You.
 * Should any Covered Software prove defective in any respect, You (not any Contributor)
 * assume the cost of any necessary servicing, repair, or correction.
 * This disclaimer of warranty constitutes an essential part of this License.
 * No use of any Covered Software is authorized under this License except under this disclaimer.
 */

package it.biztech.btable.api;

import java.io.IOException;

import javax.servlet.http.HttpServletResponse;
import javax.ws.rs.Consumes;
import javax.ws.rs.DefaultValue;
import javax.ws.rs.GET;
import javax.ws.rs.POST;
import javax.ws.rs.Path;
import javax.ws.rs.Produces;
import javax.ws.rs.QueryParam;
import javax.ws.rs.core.Context;

import org.apache.commons.io.IOUtils;
import org.pentaho.platform.api.engine.IPluginResourceLoader;
import org.pentaho.platform.engine.core.system.PentahoSystem;

import com.sun.jersey.multipart.FormDataParam;

import it.biztech.btable.BTableDefinition;
import it.biztech.btable.util.Utils;

import pt.webdetails.cpf.repository.api.IBasicFile;
import pt.webdetails.cpf.utils.MimeTypes;

@Path("BTable/api/file")
public class FileApi {

    private class MethodParams {
        private static final String PATH = "path";
        private static final String BTABLE_DEFINITION = "btdef";
    }

    @POST
    @Path("/save")
    @Produces(MimeTypes.JSON)
    @Consumes("multipart/form-data")
    public String save(@FormDataParam(MethodParams.PATH) @DefaultValue("") String path,
            @FormDataParam(MethodParams.BTABLE_DEFINITION) String btdef, @Context HttpServletResponse response)
            throws Exception {

        try {
            final BTableDefinition btableDefinition = new BTableDefinition();
            Object result = null;
            result = btableDefinition.save(path, btdef);
            return Utils.getJsonResult(true, result);
        } catch (Exception e) {
            String result = e.getMessage();
            return Utils.getJsonResult(false, result);
        }

    }

    @GET
    @Path("/read")
    @Produces("text/plain")
    public void read(@QueryParam(MethodParams.PATH) @DefaultValue("") String path,
            @Context HttpServletResponse response) throws IOException {
        try {
            IBasicFile file = Utils.getFile(path, null);

            if (file == null) {
                response.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
                return;
            }

            IPluginResourceLoader resLoader = PentahoSystem.get(IPluginResourceLoader.class, null);
            String maxAge = resLoader.getPluginSetting(this.getClass(), "max-age");

            String mimeType;
            try {
                final MimeTypes.FileType fileType = MimeTypes.FileType.valueOf(file.getExtension().toUpperCase());
                mimeType = MimeTypes.getMimeType(fileType);
            } catch (java.lang.IllegalArgumentException ex) {
                mimeType = "";
            } catch (EnumConstantNotPresentException ex) {
                mimeType = "";
            }

            response.setHeader("Content-Type", mimeType);
            response.setHeader("content-disposition", "inline; filename=\"" + file.getName() + "\"");

            if (maxAge != null) {
                response.setHeader("Cache-Control", "max-age=" + maxAge);
            }

            byte[] contents = IOUtils.toByteArray(file.getContents());

            IOUtils.write(contents, response.getOutputStream());

            response.getOutputStream().flush();
        } catch (SecurityException e) {
            response.sendError(HttpServletResponse.SC_FORBIDDEN);
        }
    }

}