Example usage for java.io ByteArrayInputStream read

Introduction

In this page you can find the example usage for java.io ByteArrayInputStream read.

Prototype

public int read(byte b[]) throws IOException 

Source Link

Document

Reads some number of bytes from the input stream and stores them into the buffer array b.

Usage

From source file:eionet.gdem.web.struts.stylesheet.GetStylesheetAction.java

@Override
public ActionForward execute(ActionMapping actionMapping, ActionForm actionForm, HttpServletRequest request,
        HttpServletResponse response) {/*from   www.j a v  a2s.c om*/

    ActionMessages errors = new ActionMessages();
    String metaXSLFolder = Properties.metaXSLFolder;
    String tableDefURL = Properties.ddURL;
    DynaValidatorForm loginForm = (DynaValidatorForm) actionForm;
    String id = (String) loginForm.get("id");
    String convId = (String) loginForm.get("conv");

    try {
        ConversionDto conv = Conversion.getConversionById(convId);
        String format = metaXSLFolder + File.separatorChar + conv.getStylesheet();
        String url = tableDefURL + "/GetTableDef?id=" + id;
        ByteArrayInputStream byteIn = XslGenerator.convertXML(url, format);
        int bufLen = 0;
        byte[] buf = new byte[1024];

        // byteIn.re

        response.setContentType("text/xml");
        while ((bufLen = byteIn.read(buf)) != -1) {
            response.getOutputStream().write(buf, 0, bufLen);
        }

        byteIn.close();
        return null;

    } catch (Exception ge) {
        LOGGER.error("Error getting stylesheet", ge);
        errors.add(ActionMessages.GLOBAL_MESSAGE, new ActionMessage("label.stylesheet.error.generation"));
        // request.getSession().setAttribute("dcm.errors", errors);
        request.setAttribute("dcm.errors", errors);
        return actionMapping.findForward("fail");
    }

    // return null;

}

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From source file:org.fao.geonet.arcgis.ArcSDEApiConnection.java

@Override
public Map<String, String> retrieveMetadata(AtomicBoolean cancelMonitor, String arcSDEVersion)
        throws Exception {
    Log.info(ARCSDE_LOG_MODULE_NAME, "Start retrieve metadata");
    Map<String, String> results = new HashMap<>();
    try {//from  www. j  a  va  2 s .c o  m
        ArcSDEVersionFactory arcSDEVersionFactory = new ArcSDEVersionFactory();
        String metadataTable = arcSDEVersionFactory.getTableName(arcSDEVersion);
        String columnName = arcSDEVersionFactory.getMetadataColumnName(arcSDEVersion);

        // query table containing XML metadata
        SeSqlConstruct sqlConstruct = new SeSqlConstruct();
        String[] tables = { metadataTable };
        sqlConstruct.setTables(tables);
        String[] propertyNames = { columnName, "uuid" };
        SeQuery query = new SeQuery(seConnection);
        query.prepareQuery(propertyNames, sqlConstruct);
        query.execute();

        // it is not documented in the ArcSDE API how you know there are no more rows to fetch!
        // I'm assuming: query.fetch returns null (empiric tests indicate this assumption is correct).
        boolean allRowsFetched = false;
        while (!allRowsFetched) {
            if (cancelMonitor.get()) {
                return Collections.emptyMap();
            }
            SeRow row = query.fetch();

            if (row != null) {
                if (row.getObject(0) != null) {
                    Log.info(ARCSDE_LOG_MODULE_NAME, "Retrieving row metadata");

                    SeColumnDefinition colDef = row.getColumnDef(0);

                    String document = "";

                    if (colDef.getType() == SeColumnDefinition.TYPE_BLOB
                            || colDef.getType() == SeColumnDefinition.TYPE_CLOB) {
                        ByteArrayInputStream bytes = row.getBlob(0);
                        byte[] buff = new byte[bytes.available()];
                        bytes.read(buff);
                        document = new String(buff, Constants.ENCODING);

                    } else if (colDef.getType() == SeColumnDefinition.TYPE_XML) {
                        SeXmlDoc xmlDoc = row.getXml(0);
                        document = xmlDoc.getText();
                    } else if (colDef.getType() == SeColumnDefinition.TYPE_STRING) {
                        document = row.getString(0);
                    }

                    if (StringUtils.isNotEmpty(document)) {
                        String uuid = row.getString(1);
                        results.put(uuid, document);
                    }
                } else {
                    Log.info(ARCSDE_LOG_MODULE_NAME, "Ignoring row without metadata");
                }
            } else {
                allRowsFetched = true;
            }
        }
        query.close();
        Log.info(ARCSDE_LOG_MODULE_NAME,
                "Finished retrieving metadata, found: #" + results.size() + " metadata records");
        return results;
    } catch (SeException x) {
        SeError error = x.getSeError();
        String description = error.getExtError() + " " + error.getExtErrMsg() + " " + error.getErrDesc();
        Log.error(ARCSDE_LOG_MODULE_NAME,
                "Error retrieving the metadata from " + "ArcSDE connection (via API):" + description, x);
        throw new Exception(x);
    }
}

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From source file:org.tridas.io.formats.lipd.LiPDFile.java

/**
 * An alternative to the normal saveToString() as this is a binary format
 * /*www  .  jav  a 2s  . c o  m*/
 * @param os
 * @throws IOException
 * @throws WriteException
 */
public void saveToDisk(OutputStream os) throws IOException, WriteException {

    // Create a buffer for reading the files
    byte[] buf = new byte[1024];

    // Create the ZIP file
    ZipOutputStream out = new ZipOutputStream(os);

    // Compress the files

    // Create JSON File
    out.putNextEntry(new ZipEntry("LiPD.jsonld"));
    String json = getJSONFileString();
    ByteArrayInputStream in = new ByteArrayInputStream(json.getBytes(StandardCharsets.UTF_8));
    // Transfer bytes from the file to the ZIP file
    int len;
    while ((len = in.read(buf)) > 0) {
        out.write(buf, 0, len);
    }
    // Complete the entry
    out.closeEntry();
    in.close();

    // Create CSV File
    out.putNextEntry(new ZipEntry("lipd-data.csv"));
    String[] matrix = flipMatrix();
    String data = "";

    // Remove header
    for (int i = 1; i < matrix.length; i++) {
        data += matrix[i] + "\n";
    }
    in = new ByteArrayInputStream(data.getBytes(StandardCharsets.UTF_8));
    // Transfer bytes from the file to the ZIP file
    while ((len = in.read(buf)) > 0) {
        out.write(buf, 0, len);
    }
    // Complete the entry
    out.closeEntry();
    in.close();

    // Complete the ZIP file
    out.close();

}

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From source file:org.unitedinternet.cosmo.dao.hibernate.HibernateTestHelper.java

/**
 * Verify input stream.//from   w ww .j a  v a 2s  . co m
 * @param is1 The input stream.
 * @param content The content.
 * @throws Exception - if something is wrong this exception is thrown.
 */
public void verifyInputStream(InputStream is1, byte[] content) throws Exception {
    byte[] buf1 = new byte[4096];
    byte[] buf2 = new byte[4096];

    ByteArrayInputStream is2 = new ByteArrayInputStream(content);

    int read1 = is1.read(buf1);
    int read2 = is2.read(buf2);
    while (read1 > 0 || read2 > 0) {
        Assert.assertEquals(read1, read2);

        for (int i = 0; i < read1; i++) {
            Assert.assertEquals(buf1[i], buf2[i]);
        }

        read1 = is1.read(buf1);
        read2 = is2.read(buf2);
    }
}

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From source file:eu.planets_project.pp.plato.util.Downloader.java

/**
 * Starts a client side download. All information provided by parameters.
 *
 * @param file data file contains/*from  w ww .  ja  v  a2 s .c  om*/
 * @param fileName name of the file (e.g. report.pdf)
 * @param contentType mime type of the content to be downloaded
 */
public void download(byte[] file, String fileName, String contentType) {
    FacesContext facesContext = FacesContext.getCurrentInstance();
    ExternalContext context = facesContext.getExternalContext();

    HttpServletResponse response = (HttpServletResponse) context.getResponse();
    response.setHeader("Content-Disposition", "attachment;filename=\"" + fileName + "\"");
    response.setContentLength((int) file.length);
    response.setContentType(contentType);

    try {
        ByteArrayInputStream in = new ByteArrayInputStream(file);
        OutputStream out = response.getOutputStream();

        // Copy the contents of the file to the output stream
        byte[] buf = new byte[1024];
        int count;
        while ((count = in.read(buf)) >= 0) {
            out.write(buf, 0, count);
        }
        in.close();
        out.flush();
        out.close();
        facesContext.responseComplete();
    } catch (IOException ex) {
        log.error("Error in downloadFile: " + ex.getMessage());
        FacesMessages.instance().add(FacesMessage.SEVERITY_ERROR, "Download couldn't be executed");
        ex.printStackTrace();
    }
}

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From source file:org.apache.abdera.test.client.util.MultipartRelatedRequestEntityTest.java

License:asdf

public void testMultipartEncoding() throws Exception {
    InputStream input = this.getClass().getResourceAsStream("info.png");
    int BUFF_SIZE = 1024;

    byte[] line = new byte[BUFF_SIZE];
    ByteArrayOutputStream output = new ByteArrayOutputStream();
    while (input.read(line) != -1) {
        output.write(line);//from w ww .  ja va 2  s  . co m
    }

    Base64 base64 = new Base64();
    byte[] encoded = base64.encode(output.toByteArray());
    ByteArrayInputStream bi = new ByteArrayInputStream(base64.decode(encoded));

    File f = new File("info-out.png");
    if (f.exists())
        f.delete();
    f.createNewFile();
    FileOutputStream fo = new FileOutputStream(f);

    int end;
    while ((end = bi.read(line)) != -1) {
        fo.write(line, 0, end);
    }

    fo.flush();
    fo.close();
}

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From source file:edu.jhuapl.graphs.controller.GraphController.java

public static String zipGraphs(List<GraphObject> graphs, String tempDir, String userId) throws GraphException {
    if (graphs != null && graphs.size() > 0) {
        byte[] byteBuffer = new byte[1024];
        String zipFileName = getUniqueId(userId) + ".zip";

        try {/*w w w . ja  v a 2 s  .  c  o m*/
            File zipFile = new File(tempDir, zipFileName);
            ZipOutputStream zos = new ZipOutputStream(new FileOutputStream(zipFile));
            boolean hasGraphs = false;

            for (GraphObject graph : graphs) {
                if (graph != null) {
                    byte[] renderedGraph = graph.getRenderedGraph().getData();
                    ByteArrayInputStream in = new ByteArrayInputStream(renderedGraph);
                    int len;

                    zos.putNextEntry(new ZipEntry(graph.getImageFileName()));

                    while ((len = in.read(byteBuffer)) > 0) {
                        zos.write(byteBuffer, 0, len);
                    }

                    in.close();
                    zos.closeEntry();
                    hasGraphs = true;
                }
            }

            zos.close();

            if (hasGraphs) {
                return zipFileName;
            } else {
                return null;
            }
        } catch (IOException e) {
            throw new GraphException("Could not write zip", e);
        }
    }

    return null;
}

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From source file:org.apache.abdera2.test.client.MultipartRelatedEntityTest.java

License:asdf

public void testMultipartEncoding() throws Exception {
    InputStream input = this.getClass().getResourceAsStream("info.png");
    int BUFF_SIZE = 1024;

    byte[] line = new byte[BUFF_SIZE];
    ByteArrayOutputStream output = new ByteArrayOutputStream();
    while (input.read(line) != -1)
        output.write(line);/*from   w w w . j a v a  2 s.  co  m*/
    input.close();

    Base64 base64 = new Base64();
    byte[] encoded = base64.encode(output.toByteArray());
    ByteArrayInputStream bi = new ByteArrayInputStream(base64.decode(encoded));

    File f = new File("info-out.png");
    if (f.exists())
        f.delete();
    if (f.createNewFile()) {
        FileOutputStream fo = new FileOutputStream(f);
        int end;
        while ((end = bi.read(line)) != -1)
            fo.write(line, 0, end);
        fo.flush();
        fo.close();
    }
}

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From source file:org.carlspring.strongbox.artifact.generator.NugetPackageGenerator.java

private void addNugetNuspecFile(Nuspec nuspec, ZipOutputStream zos) throws IOException, JAXBException {
    ZipEntry ze = new ZipEntry(nuspec.getId() + ".nuspec");
    zos.putNextEntry(ze);/*from w w  w  .  j av  a 2 s  .c o  m*/

    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    nuspec.saveTo(baos);

    ByteArrayInputStream bais = new ByteArrayInputStream(baos.toByteArray());

    byte[] buffer = new byte[4096];
    int len;
    while ((len = bais.read(buffer)) > 0) {
        zos.write(buffer, 0, len);
    }

    bais.close();
    zos.closeEntry();
}

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From source file:net.big_oh.common.web.servlets.mime.MimeServlet.java

@Override
public void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
    logger.info(getServletConfig().getServletName() + " invoked.  Requested mime resource: "
            + req.getParameter(REQUESTED_RESOURCE_NAME));

    // Get the name of the requested resource
    String requestedResourceName = req.getParameter(REQUESTED_RESOURCE_NAME);

    if (requestedResourceName == null || requestedResourceName.equals("")) {
        logger.error("Called " + getServletConfig().getServletName() + " without providing a parameter for '"
                + REQUESTED_RESOURCE_NAME + "'");
        resp.setStatus(HttpServletResponse.SC_BAD_REQUEST);
        return;//from  www  .j  av  a  2s  .c om
    }

    // Ensure that the user is allowed to access the requested resource
    if (!isCanUserAccessRequestedResource(requestedResourceName, req.getSession(true))) {
        resp.setStatus(HttpServletResponse.SC_FORBIDDEN);
        return;
    }

    // Get a byte array representation of the resource to be returned in the
    // response
    byte[] resourceBytes = getMimeResourceBytes(requestedResourceName);

    if (resourceBytes == null || resourceBytes.length == 0) {
        logger.error("No resource found under the name \"" + requestedResourceName + "\"");
        resp.setStatus(HttpServletResponse.SC_NOT_FOUND);
        return;
    }

    // Set content length for the response
    resp.setContentLength(resourceBytes.length);

    // Get the MIME type for the resource
    String mimeType = getMimeType(requestedResourceName);

    if (mimeType == null || mimeType.equals("")) {
        logger.error("Failed to get MIME type for the requested resource.");
        resp.setStatus(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
        return;
    }

    // Set the content type for the response
    resp.setContentType(mimeType);

    // Control the HTTP caching of the response
    // This setting controls how frequently the cached resource is
    // revalidated (which is not necessarily the same as reloaded)
    resp.setHeader("Cache-Control", "max-age=" + getMaxAgeInSeconds(requestedResourceName));

    // Use streams to return the requested resource
    ByteArrayInputStream in = new ByteArrayInputStream(resourceBytes);
    OutputStream out = resp.getOutputStream();

    byte[] buf = new byte[1024];
    int count = 0;
    while ((count = in.read(buf)) >= 0) {
        out.write(buf, 0, count);
    }

    in.close();
    out.close();

}

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