Example usage for java.io InputStream available

Introduction

In this page you can find the example usage for java.io InputStream available.

Prototype

public int available() throws IOException 

Source Link

Document

Returns an estimate of the number of bytes that can be read (or skipped over) from this input stream without blocking, which may be 0, or 0 when end of stream is detected.

Usage

From source file:gov.nasa.arc.geocam.geocam.HttpPost.java

protected static void assembleMultipart(DataOutputStream out, Map<String, String> vars, String fileKey,
        String fileName, InputStream istream) throws IOException {

    for (String key : vars.keySet()) {
        out.writeBytes("--" + BOUNDARY + CRLF);
        out.writeBytes("Content-Disposition: form-data; name=\"" + key + "\"" + CRLF);
        out.writeBytes(CRLF);//from w ww. j  a  v a  2 s.  c  o  m
        out.writeBytes(vars.get(key) + CRLF);
    }

    out.writeBytes("--" + BOUNDARY + CRLF);
    out.writeBytes(
            "Content-Disposition: form-data; name=\"" + fileKey + "\"; filename=\"" + fileName + "\"" + CRLF);
    out.writeBytes("Content-Type: application/octet-stream" + CRLF);
    out.writeBytes(CRLF);

    // write stream
    //http://getablogger.blogspot.com/2008/01/android-how-to-post-file-to-php-server.html
    int maxBufferSize = 1024;
    int bytesAvailable = istream.available();
    int bufferSize = Math.min(maxBufferSize, bytesAvailable);
    byte[] buffer = new byte[bufferSize];

    int bytesRead = istream.read(buffer, 0, bufferSize);
    while (bytesRead > 0) {
        out.write(buffer, 0, bufferSize);
        out.flush();
        bytesAvailable = istream.available();
        bufferSize = Math.min(maxBufferSize, bytesAvailable);
        bytesRead = istream.read(buffer, 0, bufferSize);
    }

    out.writeBytes(CRLF);
    out.writeBytes("--" + BOUNDARY + "--" + CRLF);
    out.writeBytes(CRLF);
}

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From source file:com.elit2.app.control.FileUpload.java

public void doPost(HttpServletRequest request, HttpServletResponse response) throws IOException {
    response.setContentType("text/html");
    boolean isMultipart = ServletFileUpload.isMultipartContent(request);
    if (isMultipart) {
        ServletFileUpload upload = new ServletFileUpload();
        try {//from w  w  w .j  a  v  a2 s .c  om
            FileItemIterator itr = upload.getItemIterator(request);
            while (itr.hasNext()) {
                FileItemStream item = itr.next();
                if (item.isFormField()) {
                    String fieldName = item.getFieldName();
                    InputStream is = item.openStream();
                    byte[] b = new byte[is.available()];
                    is.read(b);
                    String value = new String(b);
                    response.getWriter().println(fieldName + ":" + value + "<br/>");
                } else {
                    String path = getServletContext().getRealPath("/");
                    if (com.elit2.app.model.FileUpload.proccessFile(path, item)) {
                        response.getWriter().print("Deu certo");
                    } else {
                        response.getWriter().print("Deu errado");
                    }
                }
            }
        } catch (FileUploadException ex) {
            ex.printStackTrace();
        }
    }
}

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From source file:com.uwsoft.editor.data.manager.DataManager.java

public static String getMyDocumentsLocation() {
    String myDocuments = null;//from w  w  w.  j a v a2  s .  c  o  m

    try {
        if (SystemUtils.IS_OS_MAC || SystemUtils.IS_OS_MAC_OSX) {
            myDocuments = System.getProperty("user.home") + File.separator + "Documents";
        }
        if (SystemUtils.IS_OS_WINDOWS) {
            Process p = Runtime.getRuntime().exec(
                    "reg query \"HKCU\\Software\\Microsoft\\Windows\\CurrentVersion\\Explorer\\Shell Folders\" /v personal");
            p.waitFor();

            InputStream in = p.getInputStream();
            byte[] b = new byte[in.available()];
            in.read(b);
            in.close();

            myDocuments = new String(b);
            myDocuments = myDocuments.split("\\s\\s+")[4];
        }
        if (SystemUtils.IS_OS_LINUX) {
            myDocuments = System.getProperty("user.home") + File.separator + "Documents";
        }

    } catch (Throwable t) {
        t.printStackTrace();
    }

    return myDocuments;
}

---

From source file:im.vector.util.BugReporter.java

/**
 * Send a bug report.//from   w w  w .j av  a 2s  .  co m
 *
 * @param context         the application context
 * @param withDevicesLogs true to include the device logs
 * @param withCrashLogs   true to include the crash logs
 */
private static void sendBugReport(final Context context, final boolean withDevicesLogs,
        final boolean withCrashLogs, final String bugDescription, final IMXBugReportListener listener) {
    new AsyncTask<Void, Integer, String>() {
        @Override
        protected String doInBackground(Void... voids) {
            File bugReportFile = new File(context.getApplicationContext().getFilesDir(), "bug_report");

            if (bugReportFile.exists()) {
                bugReportFile.delete();
            }

            String serverError = null;
            FileWriter fileWriter = null;

            try {
                fileWriter = new FileWriter(bugReportFile);
                JsonWriter jsonWriter = new JsonWriter(fileWriter);
                jsonWriter.beginObject();

                // android bug report
                jsonWriter.name("user_agent").value("Android");

                // logs list
                jsonWriter.name("logs");
                jsonWriter.beginArray();

                // the logs are optional
                if (withDevicesLogs) {
                    List<File> files = org.matrix.androidsdk.util.Log.addLogFiles(new ArrayList<File>());
                    for (File f : files) {
                        if (!mIsCancelled) {
                            jsonWriter.beginObject();
                            jsonWriter.name("lines").value(convertStreamToString(f));
                            jsonWriter.endObject();
                            jsonWriter.flush();
                        }
                    }
                }

                if (!mIsCancelled && (withCrashLogs || withDevicesLogs)) {
                    jsonWriter.beginObject();
                    jsonWriter.name("lines").value(getLogCatError());
                    jsonWriter.endObject();
                    jsonWriter.flush();
                }

                jsonWriter.endArray();

                jsonWriter.name("text").value(bugDescription);

                String version = "";

                if (null != Matrix.getInstance(context).getDefaultSession()) {
                    version += "User : " + Matrix.getInstance(context).getDefaultSession().getMyUserId() + "\n";
                }

                version += "Phone : " + Build.MODEL.trim() + " (" + Build.VERSION.INCREMENTAL + " "
                        + Build.VERSION.RELEASE + " " + Build.VERSION.CODENAME + ")\n";
                version += "Vector version: " + Matrix.getInstance(context).getVersion(true) + "\n";
                version += "SDK version:  " + Matrix.getInstance(context).getDefaultSession().getVersion(true)
                        + "\n";
                version += "Olm version:  "
                        + Matrix.getInstance(context).getDefaultSession().getCryptoVersion(context, true)
                        + "\n";

                jsonWriter.name("version").value(version);

                jsonWriter.endObject();
                jsonWriter.close();

            } catch (Exception e) {
                Log.e(LOG_TAG, "doInBackground ; failed to collect the bug report data " + e.getMessage());
                serverError = e.getLocalizedMessage();
            } catch (OutOfMemoryError oom) {
                Log.e(LOG_TAG, "doInBackground ; failed to collect the bug report data " + oom.getMessage());
                serverError = oom.getMessage();

                if (TextUtils.isEmpty(serverError)) {
                    serverError = "Out of memory";
                }
            }

            try {
                if (null != fileWriter) {
                    fileWriter.close();
                }
            } catch (Exception e) {
                Log.e(LOG_TAG, "doInBackground ; failed to close fileWriter " + e.getMessage());
            }

            if (TextUtils.isEmpty(serverError) && !mIsCancelled) {

                // the screenshot is defined here
                // File screenFile = new File(VectorApp.mLogsDirectoryFile, "screenshot.jpg");
                InputStream inputStream = null;
                HttpURLConnection conn = null;
                try {
                    inputStream = new FileInputStream(bugReportFile);
                    final int dataLen = inputStream.available();

                    // should never happen
                    if (0 == dataLen) {
                        return "No data";
                    }

                    URL url = new URL(context.getResources().getString(R.string.bug_report_url));
                    conn = (HttpURLConnection) url.openConnection();
                    conn.setDoInput(true);
                    conn.setDoOutput(true);
                    conn.setUseCaches(false);
                    conn.setRequestMethod("POST");
                    conn.setRequestProperty("Content-Type", "application/json");
                    conn.setRequestProperty("Content-Length", Integer.toString(dataLen));
                    // avoid caching data before really sending them.
                    conn.setFixedLengthStreamingMode(inputStream.available());

                    conn.connect();

                    DataOutputStream dos = new DataOutputStream(conn.getOutputStream());

                    byte[] buffer = new byte[8192];

                    // read file and write it into form...
                    int bytesRead;
                    int totalWritten = 0;

                    while (!mIsCancelled && (bytesRead = inputStream.read(buffer, 0, buffer.length)) > 0) {
                        dos.write(buffer, 0, bytesRead);
                        totalWritten += bytesRead;
                        publishProgress(totalWritten * 100 / dataLen);
                    }

                    dos.flush();
                    dos.close();

                    int mResponseCode;

                    try {
                        // Read the SERVER RESPONSE
                        mResponseCode = conn.getResponseCode();
                    } catch (EOFException eofEx) {
                        mResponseCode = HttpURLConnection.HTTP_INTERNAL_ERROR;
                    }

                    // if the upload failed, try to retrieve the reason
                    if (mResponseCode != HttpURLConnection.HTTP_OK) {
                        serverError = null;
                        InputStream is = conn.getErrorStream();

                        if (null != is) {
                            int ch;
                            StringBuilder b = new StringBuilder();
                            while ((ch = is.read()) != -1) {
                                b.append((char) ch);
                            }
                            serverError = b.toString();
                            is.close();

                            // check if the error message
                            try {
                                JSONObject responseJSON = new JSONObject(serverError);
                                serverError = responseJSON.getString("error");
                            } catch (JSONException e) {
                                Log.e(LOG_TAG, "doInBackground ; Json conversion failed " + e.getMessage());
                            }

                            // should never happen
                            if (null == serverError) {
                                serverError = "Failed with error " + mResponseCode;
                            }

                            is.close();
                        }
                    }
                } catch (Exception e) {
                    Log.e(LOG_TAG,
                            "doInBackground ; failed with error " + e.getClass() + " - " + e.getMessage());
                    serverError = e.getLocalizedMessage();

                    if (TextUtils.isEmpty(serverError)) {
                        serverError = "Failed to upload";
                    }
                } catch (OutOfMemoryError oom) {
                    Log.e(LOG_TAG, "doInBackground ; failed to send the bug report " + oom.getMessage());
                    serverError = oom.getLocalizedMessage();

                    if (TextUtils.isEmpty(serverError)) {
                        serverError = "Out ouf memory";
                    }

                } finally {
                    try {
                        if (null != conn) {
                            conn.disconnect();
                        }
                    } catch (Exception e2) {
                        Log.e(LOG_TAG, "doInBackground : conn.disconnect() failed " + e2.getMessage());
                    }
                }

                if (null != inputStream) {
                    try {
                        inputStream.close();
                    } catch (Exception e) {
                        Log.e(LOG_TAG, "doInBackground ; failed to close the inputStream " + e.getMessage());
                    }
                }
            }
            return serverError;
        }

        @Override
        protected void onProgressUpdate(Integer... progress) {
            super.onProgressUpdate(progress);

            if (null != listener) {
                try {
                    listener.onProgress((null == progress) ? 0 : progress[0]);
                } catch (Exception e) {
                    Log.e(LOG_TAG, "## onProgress() : failed " + e.getMessage());
                }
            }
        }

        @Override
        protected void onPostExecute(String reason) {
            if (null != listener) {
                try {
                    if (mIsCancelled) {
                        listener.onUploadCancelled();
                    } else if (null == reason) {
                        listener.onUploadSucceed();
                    } else {
                        listener.onUploadFailed(reason);
                    }
                } catch (Exception e) {
                    Log.e(LOG_TAG, "## onPostExecute() : failed " + e.getMessage());
                }
            }
        }
    }.execute();
}

---

From source file:com.anrisoftware.sscontrol.scripts.versionlimits.ReadVersion.java

/**
 * Reads the version./*from w  w  w .j a  va  2 s  . c o m*/
 *
 * @return the {@link Version} or {@code null}.
 *
 * @throws IOException
 *             if there was an error reading the version file.
 *
 * @throws ParseException
 *             if there was an error parsing the version file.
 */
public Version readVersion() throws IOException, ParseException {
    InputStream stream = versionResource.toURL().openStream();
    if (stream.available() > 0) {
        List<String> lines = readLines(stream, charset);
        if (lines.size() > 0) {
            return versionFormatFactory.create().parse(lines.get(0));
        } else {
            return null;
        }
    } else {
        return null;
    }
}

---

From source file:org.busko.routemanager.web.RoutePlotterController.java

@RequestMapping(method = RequestMethod.GET)
public ResponseEntity<byte[]> handheldApk(Model uiModel, HttpServletRequest httpServletRequest)
        throws Exception {
    InputStream input = getClass().getClassLoader().getResourceAsStream("BuskoPlotter.apk");
    int fileSize = input.available();
    byte[] bytes = new byte[fileSize];
    input.read(bytes);//  w  ww  .  ja  v a 2  s .  c  o m
    input.close();

    HttpHeaders responseHeaders = new HttpHeaders();
    responseHeaders.set("Content-Disposition", "attachment;filename=BuskoPlotter.apk");
    responseHeaders.set("Content-Length", Integer.toString(fileSize));
    responseHeaders.set("Content-Type", "application/vnd.android.package-archive");
    return new ResponseEntity<byte[]>(bytes, responseHeaders, HttpStatus.OK);
}

---

From source file:org.jasig.cas.util.PrivateKeyFactoryBean.java

protected Object createInstance() throws Exception {
    final InputStream privKey = this.location.getInputStream();
    try {/*from ww  w  . j  av  a 2  s.co m*/
        final byte[] bytes = new byte[privKey.available()];
        privKey.read(bytes);
        privKey.close();
        final PKCS8EncodedKeySpec privSpec = new PKCS8EncodedKeySpec(bytes);
        KeyFactory factory = KeyFactory.getInstance(this.algorithm);
        return factory.generatePrivate(privSpec);
    } finally {
        privKey.close();
    }
}

---

From source file:com.clican.pluto.dataprocess.engine.processes.MvelExecProcessor.java

public void setMvelExpressionInputStream(InputStream mvelExpressionInputStream) {
    try {//from w  w  w . j a  v  a 2 s .c  o m
        byte[] data = new byte[mvelExpressionInputStream.available()];
        mvelExpressionInputStream.read(data);
        mvelExpression = new String(data, "utf-8");
    } catch (Exception e) {
        throw new RuntimeException(e);
    } finally {
        if (mvelExpressionInputStream != null) {
            try {
                mvelExpressionInputStream.close();
            } catch (Exception e) {
                log.error("", e);
            }
        }
    }
}

---

From source file:griffon.plugins.preferences.persistors.JsonPreferencesPersistor.java

@Nonnull
@SuppressWarnings("unchecked")
private JSONObject doRead(@Nonnull InputStream inputStream) throws IOException {
    if (inputStream.available() > 0) {
        return new JSONObject(new JSONTokener(inputStream));
    }/*from w  ww  . j av a 2 s.c  om*/
    return new JSONObject();
}

---

From source file:cc.arduino.packages.ssh.SSH.java

private void consumeStream(byte[] buffer, InputStream in, PrintStream out) throws IOException {
    while (in.available() > 0) {
        int length = in.read(buffer, 0, buffer.length);
        if (length < 0) {
            break;
        }//from www. ja v a  2s. c o m
        if (out != null) {
            out.print(new String(buffer, 0, length));
        }
    }
}

---

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