Example usage for java.io File canWrite

List of usage examples for java.io File canWrite

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Introduction

In this page you can find the example usage for java.io File canWrite.

Prototype

public boolean canWrite()

Source Link

Document

Tests whether the application can modify the file denoted by this abstract pathname.

Usage

From source file:ee.pri.rl.blog.service.BlogServiceImpl.java

/**
 * @see BlogService#deleteFile(String, String)
 *///w w  w  .  j a v a 2 s  .  c  o  m
@Override
public void deleteFile(String entryName, String fileName) throws IOException {
    log.info("Deleting file " + fileName + " from " + entryName);

    File uploadPath = new File(getSetting(SettingName.UPLOAD_PATH).getValue());
    File directory = new File(uploadPath, entryName);
    File file = new File(directory, fileName);

    if (file.exists() && file.canWrite()) {
        if (file.delete()) {
            log.info("File deleted");
        } else {
            throw new IOException("Could not delete file");
        }
    } else {
        throw new IOException("File does not exist or cannot be deleted");
    }
}

From source file:org.dataone.proto.trove.mn.domain.v1.ResourceNode.java

private void saveFile() {
    try {// ww  w .  j a v  a  2 s  . c  o  m
        File resourceFile = myRourceNodeResource.getFile();
        if (resourceFile.canWrite()) {
            FileOutputStream fileOutputStream = new FileOutputStream(resourceFile);
            TypeMarshaller.marshalTypeToOutputStream(node, fileOutputStream);
        }
    } catch (IOException ex) {
        ex.printStackTrace();
        throw new RuntimeException(ex.getMessage());
    } catch (JiBXException ex) {
        ex.printStackTrace();
        throw new RuntimeException(ex.getMessage());
    }
}

From source file:at.diamonddogs.net.WebClient.java

private void saveData(InputStream i) throws IOException {
    if (i == null) {
        return;//  w  w  w . j ava2 s  . c o  m
    }
    TempFile tmp = webRequest.getTmpFile().second;
    FileOutputStream fos = null;
    try {

        MessageDigest md = MessageDigest.getInstance("MD5");
        DigestInputStream dis = new DigestInputStream(i, md);

        File file = new File(tmp.getPath());
        Log.d(TAG, file.getAbsolutePath() + "can write: " + file.canWrite());
        if (file.exists() && !tmp.isAppend()) {
            file.delete();
        }
        byte buffer[] = new byte[READ_BUFFER_SIZE];
        fos = new FileOutputStream(file, tmp.isAppend());
        int bytesRead = 0;
        while ((bytesRead = dis.read(buffer)) != -1) {
            if (!webRequest.isCancelled()) {
                fos.write(buffer, 0, bytesRead);
                publishDownloadProgress(bytesRead);
            } else {
                Log.i(TAG, "Cancelled Download");
                break;
            }
        }
        fos.flush();
        fos.close();

        if (webRequest.isCancelled()) {
            Log.i(TAG, "delete file due to canclled download: " + file.getName());
            file.delete();
        } else {

            if (tmp.isUseChecksum()) {
                String md5 = new String(Hex.encodeHex(md.digest()));

                Log.d(TAG, "md5 check, original: " + tmp.getChecksum() + " file: " + md5);

                if (!md5.equalsIgnoreCase(tmp.getChecksum())) {
                    throw new IOException("Error while downloading File.\nOriginal Checksum: "
                            + tmp.getChecksum() + "\nChecksum: " + md5);
                }
            }
        }

    } catch (Exception e) {
        if (fos != null && tmp.isAppend()) {
            fos.flush();
            fos.close();
        }
        Log.e(TAG, "Failed download", e);
        // Please do not do that - that hides the original error!
        throw new IOException(e.getMessage());

        // Who ever changed this... new IOException(e) is API level 9!!! and
        // gives a nice NoSuchMethodException :)
        // throw new IOException(e);
    }
}

From source file:com.adaptris.fs.StandardWorkerTest.java

@Test
public void testCheckExists() throws Exception {
    File nonExistent = Mockito.mock(File.class);
    Mockito.when(nonExistent.exists()).thenReturn(false);
    try {/*from w w  w . j a va 2  s .  c o m*/
        FsWorker.checkExists(nonExistent);
        fail();
    } catch (FsException expected) {

    }
    File exists = Mockito.mock(File.class);
    Mockito.when(exists.canRead()).thenReturn(false);
    Mockito.when(exists.exists()).thenReturn(true);
    Mockito.when(exists.canWrite()).thenReturn(true);
    FsWorker.checkExists(exists);
}

From source file:com.wudaosoft.net.httpclient.FileResponseHandler.java

@Override
public File handleResponse(HttpResponse response) throws ClientProtocolException, IOException {
    int status = response.getStatusLine().getStatusCode();

    if (status != 200) {
        throw new ClientProtocolException("Unexpected response status: " + status);
    }//from   w  ww. j a v a 2 s.c o m

    HttpEntity entity = response.getEntity();

    if (entity == null || !entity.isStreaming()) {
        throw new ClientProtocolException("Response contains no content");
    }

    File tempFile = null;

    if (this.file != null) {
        tempFile = this.file;
    } else if (this.dir != null) {
        Header contentDisposition = response.getLastHeader("Content-disposition");
        String filename = contentDisposition.getValue().split(";")[1].split("=")[1].replace("\"", "");
        tempFile = new File(this.dir, filename);
    }

    Args.notNull(tempFile, "file");
    Args.check(tempFile.canWrite(), "file must be writeable");

    InputStream inputStream = entity.getContent();
    FileOutputStream outputStream = new FileOutputStream(tempFile);

    try {

        byte[] buff = new byte[4096];
        int size = -1;
        while ((size = inputStream.read(buff)) != -1) {

            outputStream.write(buff, 0, size);
        }

        outputStream.flush();

        return tempFile;
    } finally {
        try {
            outputStream.close();
        } catch (IOException e) {
        }
    }

}

From source file:org.powertac.tournament.services.TournamentProperties.java

/**
 * Make sure filelocation exists, fall back to catalina dir, we know that exists
 *//*from  www  . j  a va 2  s  . c o m*/
private void checkFileLocation(String name, String catalinaBase) {
    String directory = properties.getProperty(name);

    if (!directory.endsWith(File.separator)) {
        directory += File.separator;
        properties.setProperty(name, directory);
    }

    File test = new File(directory);
    if (!test.exists()) {
        String msg = String.format("%s '%s' doesn't exist<br/>falling back on : %s", name, directory,
                catalinaBase);
        log.error(msg);
        messages.add(msg);
        properties.setProperty(name, catalinaBase);
    } else if (!test.canWrite()) {
        String msg = String.format("%s '%s' isn't writeable<br/>falling back on : %s", name, directory,
                catalinaBase);
        log.error(msg);
        messages.add(msg);
        properties.setProperty(name, catalinaBase);
    }
}

From source file:org.springsource.ide.eclipse.commons.internal.configurator.ui.ConfiguratorPreferencesPage.java

protected void doInstall(final ConfigurableExtension extension) {
    // FIXME use directory where extension is installed
    final File installDirectory = new File(userLocationText.getText());
    if (!installDirectory.canWrite()) {
        UiStatusHandler.logAndDisplay(new Status(IStatus.ERROR, Activator.PLUGIN_ID, NLS.bind(
                "Installation failed. The directory ''{0}'' is not writeable.", userLocationText.getText())));
        return;/*from ww w  . ja v  a2 s  . com*/
    }
    try {
        final IStatus[] status = new IStatus[1];
        UiUtil.busyCursorWhile(new ICoreRunnable() {
            public void run(IProgressMonitor monitor) throws CoreException {
                status[0] = extension.install(installDirectory, monitor);
                if (status[0].getSeverity() != IStatus.ERROR) {
                    IStatus configurationStatus = extension.configure(monitor);
                    if (status[0].getSeverity() != IStatus.OK) {
                        MultiStatus result = new MultiStatus(Activator.PLUGIN_ID, 0,
                                NLS.bind(
                                        "The installation of {0} generated warning. See error log for details.",
                                        extension.getLabel()),
                                null);
                        result.add(status[0]);
                        result.add(configurationStatus);
                        status[0] = result;
                    } else {
                        status[0] = configurationStatus;
                    }
                }
            }
        });
        handleResult(extension, status);
        doRefresh();
    } catch (OperationCanceledException ignored) {
        // cancelled
    } catch (CoreException e) {
        UiStatusHandler.logAndDisplay(e.getStatus());
    }
}

From source file:net.sf.jasperreports.customvisualization.export.CVElementPhantomJSImageDataProvider.java

/**
 * Returns the location of a newly created image,
 * //from   ww  w . j  a  v a2 s.co m
 * @param jasperReportsContext
 * @param element
 * @return image byte array
 * @throws Exception
 */
@Override
public byte[] getImageData(JasperReportsContext jasperReportsContext, JRGenericPrintElement element)
        throws Exception {
    if (element.getParameterValue(CVPrintElement.CONFIGURATION) == null) {
        throw new JRRuntimeException("Configuration object is null.");
    }

    String phantomjsExecutablePath = jasperReportsContext
            .getProperty(CVElementPhantomJSImageDataProvider.PROPERTY_PHANTOMJS_EXECUTABLE_PATH);
    if (phantomjsExecutablePath == null) {
        phantomjsExecutablePath = "phantomjs";
    }

    int phantomjsTimeout;
    String timeoutProperty = jasperReportsContext
            .getProperty(CVElementPhantomJSImageDataProvider.PROPERTY_PHANTOMJS_EXECUTABLE_TIMEOUT);
    if (timeoutProperty != null) {
        phantomjsTimeout = Integer.parseInt(timeoutProperty);
    } else {
        phantomjsTimeout = 60000;
    }

    String phantomjsTempFolderPath = jasperReportsContext
            .getProperty(CVElementPhantomJSImageDataProvider.PROPERTY_PHANTOMJS_TEMPDIR_PATH);
    if (phantomjsTempFolderPath == null) {
        phantomjsTempFolderPath = System.getProperty("java.io.tmpdir");
    }

    File tempFolder = new File(phantomjsTempFolderPath);
    if (tempFolder.exists()) {
        // Collect the files that must be deleted as we finish to render everything
        List<File> cleanableResourcePaths = new ArrayList<>();

        try {
            List<String> scripts = new ArrayList<>();
            RepositoryUtil repositoryUtil = RepositoryUtil.getInstance(jasperReportsContext);

            for (String scriptLocation : scriptResourceLocations) {
                scripts.add(copyResourceToTempFolder(scriptLocation, tempFolder, cleanableResourcePaths, true,
                        repositoryUtil));
            }

            scripts.add(copyResourceToTempFolder((String) element.getParameterValue(CVPrintElement.SCRIPT_URI),
                    tempFolder, cleanableResourcePaths, true, repositoryUtil));

            String cssUriParameter = (String) element.getParameterValue(CVPrintElement.CSS_URI);
            String cssUri = null;
            if (cssUriParameter != null) {
                cssUri = copyResourceToTempFolder(cssUriParameter, tempFolder, cleanableResourcePaths, true,
                        repositoryUtil);
            }

            String htmlPage = getHtmlPage(jasperReportsContext, element, scripts.subList(1, scripts.size()),
                    cssUri);

            File htmlPageFile = createTempFile("in.html", tempFolder, cleanableResourcePaths, false);
            try (InputStream is = new ByteArrayInputStream(htmlPage.getBytes());
                    OutputStream os = new FileOutputStream(htmlPageFile)) {
                CVUtils.byteStreamCopy(is, os);
            }

            File outputSvgFile = createTempFile("out.svg", tempFolder, cleanableResourcePaths, false);
            boolean renderAsPng = CVUtils.isRenderAsPng(element);

            try {
                runCommand(new String[] { phantomjsExecutablePath, scripts.get(0),
                        "--output-format=" + (renderAsPng ? "png" : "svg"),
                        "--timeout=" + CVUtils.getTimeout(element),
                        "--zoom-factor=" + CVUtils.getZoomFactor(element), htmlPageFile.getName(),
                        outputSvgFile.getName() }, tempFolder, phantomjsTimeout);
            } catch (Exception ex) {
                throw new JRRuntimeException(
                        "Error while executing the javascript file to generate the SVG image: "
                                + ex.getMessage());
            }

            if (!outputSvgFile.exists() || outputSvgFile.length() <= 0) {
                throw new JRRuntimeException(
                        "Error while executing the javascript file to generate the SVG image.");
            }

            try (InputStream is = new FileInputStream(outputSvgFile);
                    ByteArrayOutputStream os = new ByteArrayOutputStream()) {
                CVUtils.byteStreamCopy(is, os);

                return os.toByteArray();
            }

        } finally {
            for (File cleanableResource : cleanableResourcePaths) {
                if (cleanableResource.exists() && cleanableResource.canWrite()) {
                    JRPropertiesUtil propertiesUtil = JRPropertiesUtil.getInstance(jasperReportsContext);
                    boolean isPhantomJSinDebugMode = propertiesUtil.getBooleanProperty(
                            CVElementPhantomJSImageDataProvider.PROPERTY_PHANTOMJS_DEBUG, false);

                    String keepTempFilesProperty = element.getPropertiesMap()
                            .getProperty("cv.keepTemporaryFiles");
                    boolean keepTempFiles = keepTempFilesProperty != null
                            && keepTempFilesProperty.equals("true");

                    if (!(isPhantomJSinDebugMode && keepTempFiles)) {
                        if (log.isDebugEnabled()) {
                            log.debug("Cleaning up resource after rendering of element "
                                    + CVUtils.getElementId(element) + ": "
                                    + cleanableResource.getAbsolutePath());
                        }

                        cleanableResource.delete();
                    }
                }
            }
        }

    } else {
        throw new JRRuntimeException("Temp folder '" + tempFolder + "' does not exist!");
    }
}

From source file:com.xpn.xwiki.plugin.fileupload.FileUploadPlugin.java

/**
 * Loads the list of uploaded files in the context if there are any uploaded files.
 * //w  w w  . j  a  v  a 2 s. com
 * @param uploadMaxSize Maximum size of the uploaded files.
 * @param uploadSizeThreashold Threashold over which the file data should be stored on disk, and not in memory.
 * @param tempdir Temporary directory to store the uploaded files that are not kept in memory.
 * @param context Context of the request.
 * @throws XWikiException if the request could not be parsed, or the maximum file size was reached.
 * @see FileUploadPluginApi#loadFileList(long, int, String)
 */
public void loadFileList(long uploadMaxSize, int uploadSizeThreashold, String tempdir, XWikiContext context)
        throws XWikiException {
    LOGGER.debug("Loading uploaded files");

    // If we already have a file list then loadFileList was already called
    // Continuing would empty the list.. We need to stop.
    if (context.get(FILE_LIST_KEY) != null) {
        LOGGER.debug("Called loadFileList twice");

        return;
    }

    // Get the FileUpload Data
    // Make sure the factory only ever creates file items which will be deleted when the jvm is stopped.
    DiskFileItemFactory factory = new DiskFileItemFactory() {
        public FileItem createItem(String fieldName, String contentType, boolean isFormField, String fileName) {
            try {
                final DiskFileItem item = (DiskFileItem) super.createItem(fieldName, contentType, isFormField,
                        fileName);
                // Needed to make sure the File object is created.
                item.getOutputStream();
                item.getStoreLocation().deleteOnExit();
                return item;
            } catch (IOException e) {
                String path = System.getProperty("java.io.tmpdir");
                if (super.getRepository() != null) {
                    path = super.getRepository().getPath();
                }
                throw new RuntimeException("Unable to create a temporary file for saving the attachment. "
                        + "Do you have write access on " + path + "?");
            }
        }
    };

    factory.setSizeThreshold(uploadSizeThreashold);

    if (tempdir != null) {
        File tempdirFile = new File(tempdir);
        if (tempdirFile.mkdirs() && tempdirFile.canWrite()) {
            factory.setRepository(tempdirFile);
        }
    }

    // TODO: Does this work in portlet mode, or we must use PortletFileUpload?
    FileUpload fileupload = new ServletFileUpload(factory);
    RequestContext reqContext = new ServletRequestContext(context.getRequest().getHttpServletRequest());
    fileupload.setSizeMax(uploadMaxSize);
    // context.put("fileupload", fileupload);

    try {
        @SuppressWarnings("unchecked")
        List<FileItem> list = fileupload.parseRequest(reqContext);
        if (list.size() > 0) {
            LOGGER.info("Loaded " + list.size() + " uploaded files");
        }
        // We store the file list in the context
        context.put(FILE_LIST_KEY, list);
    } catch (FileUploadBase.SizeLimitExceededException e) {
        throw new XWikiException(XWikiException.MODULE_XWIKI_APP,
                XWikiException.ERROR_XWIKI_APP_FILE_EXCEPTION_MAXSIZE, "Exception uploaded file");
    } catch (Exception e) {
        throw new XWikiException(XWikiException.MODULE_XWIKI_APP,
                XWikiException.ERROR_XWIKI_APP_UPLOAD_PARSE_EXCEPTION, "Exception while parsing uploaded file",
                e);
    }
}

From source file:org.springsource.ide.eclipse.commons.internal.configurator.ConfiguratorImporter.java

public File getDefaultInstallLocation() {
    List<File> locations = getSearchLocations();
    for (File location : locations) {
        if (location.exists() && location.canWrite()) {
            return location;
        }//from   w  w  w.j a v a2s  .  co m
    }
    return null;
}