Example usage for org.apache.commons.vfs2 FileObject exists

Introduction

In this page you can find the example usage for org.apache.commons.vfs2 FileObject exists.

Prototype

boolean exists() throws FileSystemException;

Source Link

Document

Determines if this file exists.

Usage

From source file:org.obiba.opal.web.magma.view.FileViewDtoExtension.java

@Override
public TableDto asTableDto(ViewDto viewDto, Magma.TableDto.Builder tableDtoBuilder) {
    FileViewDto fileDto = viewDto.getExtension(FileViewDto.view);
    try {/* w  w  w.java  2  s .  c o m*/
        FileObject file = opalRuntime.getFileSystem().getRoot().resolveFile(fileDto.getFilename());
        if (file.exists()) {
            try (InputStream is = file.getContent().getInputStream()) {
                return makeTableDtoFromFile(tableDtoBuilder, fileDto, is);
            }
        }
        throw new RuntimeException("cannot find file specified '" + fileDto.getFilename() + "'");
    } catch (IOException e) {
        throw new RuntimeException(e);
    }
}

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From source file:org.obiba.opal.web.shell.reporting.ProjectReportTemplateResource.java

@GET
@Path("/reports")
public List<Opal.ReportDto> getReports() throws FileSystemException {
    getReportTemplate();//  w w  w .  ja v a  2  s .c o  m
    FileObject reportFolder = getReportFolder();
    List<Opal.ReportDto> reports = Lists.newArrayList();
    if (reportFolder.exists()) {
        for (FileObject reportFile : reportFolder.getChildren()) {
            if (reportFile.getType() == FileType.FILE
                    && reportFile.getName().getBaseName().startsWith(name + "-") && reportFile.isReadable()) {
                reports.add(getReportDto(reportFile));
            }
        }
    }
    return reports;
}

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From source file:org.obiba.opal.web.shell.reporting.ProjectReportTemplateResource.java

@GET
@Path("/reports/latest")
public Response getReport() throws FileSystemException {
    getReportTemplate();/* w  w  w .ja  v a2  s  .  co  m*/

    FileObject reportFolder = getReportFolder();
    if (!reportFolder.exists()) {
        return Response.status(Response.Status.NOT_FOUND).build();
    }

    FileObject lastReportFile = null;
    File lastReport = null;
    for (FileObject reportFile : reportFolder.getChildren()) {
        if (reportFile.getType() == FileType.FILE && reportFile.getName().getBaseName().startsWith(name + "-")
                && reportFile.isReadable()) {
            File report = opalRuntime.getFileSystem().getLocalFile(reportFile);
            if (lastReport == null || report.lastModified() > lastReport.lastModified()) {
                lastReport = report;
                lastReportFile = reportFile;
            }
        }
    }

    return lastReportFile == null ? Response.status(Response.Status.NOT_FOUND).build()
            : Response.ok(getReportDto(lastReportFile)).build();
}

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From source file:org.onehippo.forge.content.exim.repository.jaxrs.AbstractContentEximService.java

/**
 * Return true if a stop signal file is found under the base folder.
 * @param baseFolder the base folder where zip content files are created temporarily.
 * @return true if a stop signal file is found under the base folder
 *//*  ww w.  j  a v a  2  s.co m*/
protected boolean isStopRequested(FileObject baseFolder) {
    try {
        FileObject stopSignalFile = baseFolder.resolveFile(STOP_REQUEST_FILE_REL_PATH);
        return stopSignalFile.exists();
    } catch (Exception e) {
        log.error("Failed to check stop request file.", e);
    }

    return false;
}

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From source file:org.ow2.proactive_grid_cloud_portal.dataspace.FileSystem.java

public FileObject createFile(String pathname) throws FileSystemException {
    FileObject fo = fsm.resolveFile(pathname);
    fo.refresh();/* ww  w  . ja v  a  2  s.c o  m*/
    if (!fo.exists()) {
        fo.createFile();
    }
    return fo;
}

---

From source file:org.ow2.proactive_grid_cloud_portal.dataspace.RestDataspaceImpl.java

/**
 * Retrieves single or multiple files from specified location of the server.
 * The format of the GET URI is://from  w w  w  . ja  v  a2s . c om
 * <P>
 * {@code http://<rest-server-path>/data/<dataspace>/<path-name>}
 * <p>
 * Example:
 * <p>
 * {@code http://localhost:8080/rest/rest/data/user/my-files/my-text-file.txt}
 * <ul>
 * <li>dataspace: can have two possible values, 'user' or 'global',
 * depending on the target <i>DATASPACE</i></li>
 * <li>path-name: location from which the file will be retrieved.</li>
 * </ul>
 * <b>Notes:</b>
 * <ul>
 * <li>If 'list' is specified as the 'comp' query parameter, an
 * {@link ListFile} type object will be return in JSON format. It will contain a list of files and folder contained in the selected
 * path.
 * </li>
 * <li>If 'recursive' is specified as the 'comp' query parameter, an
 * {@link ListFile} type object will be return in JSON format. It will contain a list of files and folder contained in the selected
 * path and all subfolders.
 * </li>
 * <li>If the pathname represents a file its contents will be returned as:
 * <ul>
 * <li>an octet stream, if its a compressed file or the client doesn't
 * accept encoded content</li>
 * <li>a 'gzip' encoded stream, if the client accepts 'gzip' encoded content
 * </li>
 * <li>a 'zip' encoded stream, if the client accepts 'zip' encoded contents</li>
 * </ul>
 * </li>
 * <li>If the pathname represents a directory, its contents will be returned
 * as 'zip' encoded stream.</li>
 * <li>file names or regular expressions can be used as 'includes' and
 * 'excludes' query parameters, in order to select which files to be
 * returned can be used to select the files returned.</li>
 * </ul>
 */
@GET
@Path("/{dataspace}/{path-name:.*}")
public Response retrieve(@HeaderParam("sessionid") String sessionId,
        @HeaderParam("Accept-Encoding") String encoding, @PathParam("dataspace") String dataspace,
        @PathParam("path-name") String pathname, @QueryParam("comp") String component,
        @QueryParam("includes") List<String> includes, @QueryParam("excludes") List<String> excludes)
        throws NotConnectedRestException, PermissionRestException {
    checkPathParams(dataspace, pathname);
    Session session = checkSessionValidity(sessionId);
    try {
        FileObject fo = resolveFile(session, dataspace, pathname);

        if (!fo.exists()) {
            return notFoundRes();
        }
        if (!Strings.isNullOrEmpty(component)) {
            return componentResponse(component, fo, includes, excludes);
        }
        if (fo.getType() == FileType.FILE) {
            if (VFSZipper.isZipFile(fo)) {
                logger.debug(String.format("Retrieving file %s in %s", pathname, dataspace));
                return fileComponentResponse(fo);
            } else if (Strings.isNullOrEmpty(encoding) || encoding.contains("*") || encoding.contains("gzip")) {
                logger.debug(String.format("Retrieving file %s as gzip in %s", pathname, dataspace));
                return gzipComponentResponse(pathname, fo);
            } else if (encoding.contains("zip")) {
                logger.debug(String.format("Retrieving file %s as zip in %s", pathname, dataspace));
                return zipComponentResponse(fo, null, null);
            } else {
                logger.debug(String.format("Retrieving file %s in %s", pathname, dataspace));
                return fileComponentResponse(fo);
            }
        } else {
            // folder
            if (Strings.isNullOrEmpty(encoding) || encoding.contains("*") || encoding.contains("zip")) {
                logger.debug(String.format("Retrieving folder %s as zip in %s", pathname, dataspace));
                return zipComponentResponse(fo, includes, excludes);
            } else {
                return badRequestRes("Folder retrieval only supported with zip encoding.");
            }
        }
    } catch (Throwable error) {
        logger.error(String.format("Cannot retrieve %s in %s.", pathname, dataspace), error);
        throw rethrow(error);
    }
}

---

From source file:org.ow2.proactive_grid_cloud_portal.dataspace.RestDataspaceImpl.java

/**
 * Delete file(s) from the specified location in the <i>dataspace</i>. The
 * format of the DELETE URI is://from  w  w w.java 2  s .  c om
 * <p>
 * {@code http://<rest-server-path>/data/<dataspace>/<path-name>}
 * <p>
 * Example:
 * {@code http://localhost:8080/rest/rest/data/user/my-files/my-text-file.txt}
 * <ul>
 * <li>dataspace: can have two possible values, 'user' or 'global',
 * depending on the target <i>DATASPACE</i></li>
 * <li>path-name: location of the file(s) to be deleted.</li>
 * </ul>
 * <b>Notes:</b>
 * <ul>
 * <li>Only empty directories can be deleted.</li>
 * <li>File names or regular expressions can be used as 'includes' and
 * 'excludes' query parameters, in order to select which files to be deleted
 * inside the specified directory (path-name).</li>
 * </ul>
 *
 */
@DELETE
@Path("/{dataspace}/{path-name:.*}")
public Response delete(@HeaderParam("sessionid") String sessionId, @PathParam("dataspace") String dataspace,
        @PathParam("path-name") String pathname, @QueryParam("includes") List<String> includes,
        @QueryParam("excludes") List<String> excludes)
        throws NotConnectedRestException, PermissionRestException {
    checkPathParams(dataspace, pathname);
    Session session = checkSessionValidity(sessionId);

    try {
        FileObject fo = resolveFile(session, dataspace, pathname);

        if (!fo.exists()) {
            return Response.status(Response.Status.NO_CONTENT).build();
        }
        if (fo.getType() == FileType.FOLDER) {
            logger.debug(String.format("Deleting directory %s in %s", pathname, dataspace));
            return deleteDir(fo, includes, excludes);
        } else {
            logger.debug(String.format("Deleting file %s in %s", pathname, dataspace));
            fo.close();
            return fo.delete() ? noContentRes() : serverErrorRes("Cannot delete the file: %s", pathname);
        }
    } catch (Throwable error) {
        logger.error(String.format("Cannot delete %s in %s.", pathname, dataspace), error);
        throw rethrow(error);
    }
}

---

From source file:org.ow2.proactive_grid_cloud_portal.dataspace.RestDataspaceImpl.java

/**
 * Retrieve metadata of file in the location specified in <i>dataspace</i>.
 * The format of the HEAD URI is:/*  ww w.ja  va2  s.c om*/
 * <p>
 * {@code http://<rest-server-path>/data/<dataspace>/<path-name>}
 * <p>
 * Example:
 * {@code http://localhost:8080/rest/rest/data/user/my-files/my-text-file.txt}
 *
 */
@HEAD
@Path("/{dataspace}/{path-name:.*}")
public Response metadata(@HeaderParam("sessionid") String sessionId,
        @PathParam("dataspace") String dataspacePath, @PathParam("path-name") String pathname)
        throws NotConnectedRestException, PermissionRestException {
    checkPathParams(dataspacePath, pathname);
    Session session = checkSessionValidity(sessionId);
    try {
        FileObject fo = resolveFile(session, dataspacePath, pathname);
        if (!fo.exists()) {
            return notFoundRes();
        }
        logger.debug(String.format("Retrieving metadata for %s in %s", pathname, dataspacePath));
        MultivaluedMap<String, Object> headers = new MultivaluedHashMap<>(FileSystem.metadata(fo));
        return Response.ok().replaceAll(headers).build();
    } catch (Throwable error) {
        logger.error(String.format("Cannot retrieve metadata for %s in %s.", pathname, dataspacePath), error);
        throw rethrow(error);
    }
}

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From source file:org.ow2.proactive_grid_cloud_portal.dataspace.RestDataspaceImpl.java

public void writeFile(InputStream inputStream, FileObject outputFile, String encoding)
        throws FileSystemException, IOException {
    try {//from w  w w.  j a v a2 s . co m
        if (outputFile.exists()) {
            outputFile.delete(SELECT_SELF);
        }
        if (Strings.isNullOrEmpty(encoding)) {
            outputFile.createFile();
            FileSystem.copy(inputStream, outputFile);
        } else if ("gzip".equals(encoding)) {
            VFSZipper.GZIP.unzip(inputStream, outputFile);
        } else if ("zip".equals(encoding)) {
            VFSZipper.ZIP.unzip(inputStream, outputFile);
        } else {
            outputFile.createFile();
            FileSystem.copy(inputStream, outputFile);
        }
    } catch (Throwable error) {
        if (outputFile != null) {
            try {
                if (outputFile.exists()) {
                    outputFile.delete(SELECT_SELF);
                }
            } catch (FileSystemException e1) {
                logger.error("Error occurred while deleting partially created file.", e1);
            }
        }
        Throwables.propagateIfInstanceOf(error, FileSystemException.class);
        Throwables.propagateIfInstanceOf(error, IOException.class);
        Throwables.propagate(error);
    }
}

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From source file:org.ow2.proactive_grid_cloud_portal.scheduler.SchedulerStateRest.java

/**
 * Pushes a file from the local file system into the given DataSpace
 * /*  ww  w  .  java 2s.c om*/
 * @param sessionId
 *            a valid session id
 * @param spaceName
 *            the name of the DataSpace
 * @param filePath
 *            the path inside the DataSpace where to put the file e.g.
 *            "/myfolder"
 * @param multipart
 *            the form data containing : - fileName the name of the file
 *            that will be created on the DataSpace - fileContent the
 *            content of the file
 * @return true if the transfer succeeded
 * @see org.ow2.proactive.scheduler.common.SchedulerConstants for spaces
 *      names
 **/
@Override
public boolean pushFile(@HeaderParam("sessionid") String sessionId, @PathParam("spaceName") String spaceName,
        @PathParam("filePath") String filePath, MultipartFormDataInput multipart)
        throws IOException, NotConnectedRestException, PermissionRestException {
    checkAccess(sessionId, "pushFile");

    Session session = dataspaceRestApi.checkSessionValidity(sessionId);

    Map<String, List<InputPart>> formDataMap = multipart.getFormDataMap();

    List<InputPart> fNL = formDataMap.get("fileName");
    if ((fNL == null) || (fNL.size() == 0)) {
        throw new IllegalArgumentException("Illegal multipart argument definition (fileName), received " + fNL);
    }
    String fileName = fNL.get(0).getBody(String.class, null);

    List<InputPart> fCL = formDataMap.get("fileContent");
    if ((fCL == null) || (fCL.size() == 0)) {
        throw new IllegalArgumentException(
                "Illegal multipart argument definition (fileContent), received " + fCL);
    }
    InputStream fileContent = fCL.get(0).getBody(InputStream.class, null);

    if (fileName == null) {
        throw new IllegalArgumentException("Wrong file name : " + fileName);
    }

    filePath = normalizeFilePath(filePath, fileName);

    FileObject destfo = dataspaceRestApi.resolveFile(session, spaceName, filePath);

    URL targetUrl = destfo.getURL();
    logger.info("[pushFile] pushing file to " + targetUrl);

    if (!destfo.isWriteable()) {
        RuntimeException ex = new IllegalArgumentException(
                "File " + filePath + " is not writable in space " + spaceName);
        logger.error(ex);
        throw ex;
    }
    if (destfo.exists()) {
        destfo.delete();
    }
    // used to create the necessary directories if needed
    destfo.createFile();

    dataspaceRestApi.writeFile(fileContent, destfo, null);

    return true;
}

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