Example usage for java.util Scanner hasNextLine

List of usage examples for java.util Scanner hasNextLine

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Introduction

In this page you can find the example usage for java.util Scanner hasNextLine.

Prototype

public boolean hasNextLine()

Source Link

Document

Returns true if there is another line in the input of this scanner.

Usage

From source file:com.shieldsbetter.sbomg.Cli.java

private static Object parseSbomgV1(Scanner s) throws OperationException {
    if (!s.hasNextLine()) {
        throw new OperationException("Empty.");
    }//from w  ww  .j  a v  a  2s .  c  o  m

    String magicLine = s.nextLine();
    if (!magicLine.startsWith("sbomg-")) {
        throw new OperationException("Input must begin with 'sbomg-'.");
    }

    String version = magicLine.substring("sbomg-".length()).trim();
    if (version.isEmpty()) {
        throw new OperationException("Format version must follow 'sbomg-'.");
    } else if (!version.equals("v1")) {
        throw new OperationException("Unrecognized format version: " + version + ".  Must be 'v1'.");
    }

    String modelDescriptorFormatSpecifier = expectLine(s, "Expecting model format specifier.  Found EOF.")
            .trim();

    if (!modelDescriptorFormatSpecifier.equals("yaml")) {
        throw new OperationException(
                "Model format specifier must be 'yaml'. Was: " + modelDescriptorFormatSpecifier);
    }

    String yamlBlock = expectBlock(s, "yaml");
    Object modelDescriptorObject = new Yaml().load(yamlBlock);

    return modelDescriptorObject;
}

From source file:Main.java

public static float[][] readMatrix(String path) throws FileNotFoundException {
    int n = 0, p = 0;
    System.err.println("Load matrix from " + path);
    Scanner sc = new Scanner(new BufferedReader(new FileReader(path)));
    while (sc.hasNext()) {
        String line = sc.nextLine();
        if (line.startsWith("%")) {
            System.err.println(line);
        } else {//from w  w  w .  j  a  va2 s .co  m
            String[] dim = line.split(" ");
            n = Integer.parseInt(dim[0]);
            p = Integer.parseInt(dim[1]);
            System.err.println("num rows: " + n + "\n" + "num cols: " + p);
            break;
        }
    }
    int count = 0;
    float[][] mat = new float[p][n];
    int row = 0, col = 0;
    while (sc.hasNextLine()) {
        String line = sc.nextLine();
        if (line.isEmpty()) {
            break;
        }
        Float val = Float.parseFloat(line);
        mat[col][row] = val;
        row++;
        if (row == n) {
            row = 0;
            col++;
        }
        count++;
    }
    if (count != n * p) {
        System.err.println("Parse fail: not enough elements. num rows: " + n + "\n" + "num cols: " + p
                + "\n nun elements: " + count);
        return null;
    }
    System.err.println("Done.");
    return mat;
}

From source file:Main.java

public static double[][] readMatrixDouble(String path) throws FileNotFoundException {
    int n = 0, p = 0;
    System.err.println("Load matrix from " + path);
    Scanner sc = new Scanner(new BufferedReader(new FileReader(path)));
    while (sc.hasNext()) {
        String line = sc.nextLine();
        if (line.startsWith("%")) {
            System.err.println(line);
        } else {/*from  w  w w  .j  av a 2 s . co  m*/
            String[] dim = line.split(" ");
            n = Integer.parseInt(dim[0]);
            p = Integer.parseInt(dim[1]);
            System.err.println("num rows: " + n + "\n" + "num cols: " + p);
            break;
        }
    }
    int count = 0;
    double[][] mat = new double[p][n];
    int row = 0, col = 0;
    while (sc.hasNextLine()) {
        String line = sc.nextLine();
        if (line.isEmpty()) {
            break;
        }
        Double val = Double.parseDouble(line);
        mat[col][row] = val;
        row++;
        if (row == n) {
            row = 0;
            col++;
        }
        count++;
    }
    if (count != n * p) {
        System.err.println("Parse fail: not enough elements. num rows: " + n + "\n" + "num cols: " + p
                + "\n nun elements: " + count);
        return null;
    }
    System.err.println("Done.");
    return mat;
}

From source file:io.selendroid.standalone.android.impl.DefaultAndroidEmulator.java

private static Map<String, Integer> mapDeviceNamesToSerial() {
    Map<String, Integer> mapping = new HashMap<String, Integer>();
    CommandLine command = new CommandLine(AndroidSdk.adb());
    command.addArgument("devices");
    Scanner scanner;
    try {/*from  w ww  . j  av a  2 s  . c om*/
        scanner = new Scanner(ShellCommand.exec(command));
    } catch (ShellCommandException e) {
        return mapping;
    }
    while (scanner.hasNextLine()) {
        String line = scanner.nextLine();
        Pattern pattern = Pattern.compile("emulator-\\d\\d\\d\\d");
        Matcher matcher = pattern.matcher(line);
        if (matcher.find()) {
            String serial = matcher.group(0);

            Integer port = Integer.valueOf(serial.replaceAll("emulator-", ""));
            TelnetClient client = null;
            try {
                client = new TelnetClient(port);
                String avdName = client.sendCommand("avd name");
                mapping.put(avdName, port);
            } catch (AndroidDeviceException e) {
                // ignore
            } finally {
                if (client != null) {
                    client.close();
                }
            }
        }
    }
    scanner.close();

    return mapping;
}

From source file:org.kalypso.kalypsomodel1d2d.conv.SWANDataConverterHelper.java

public static GM_Position readCoordinateShiftValues(final FileObject pFile) {
    GM_Position lPosRes = null;/*ww  w.  j av a 2s  .  c  o m*/

    Scanner scannerFile = null;
    Scanner scannerLine = null;
    try {

        FileObject swanShiftCoordFileObject = pFile.getParent()
                .getChild(ISimulation1D2DConstants.SIM_SWAN_COORD_SHIFT_FILE);
        if (swanShiftCoordFileObject == null) {
            return lPosRes;
        }
        File lFile = new File(swanShiftCoordFileObject.getURL().toURI());

        scannerFile = new Scanner(lFile);
        Double lDoubleShiftY = null;
        Double lDoubleShiftX = null;
        while (scannerFile.hasNextLine()) {
            String lStrNextLine = scannerFile.nextLine();
            if (lStrNextLine.contains("=")) { //$NON-NLS-1$
                scannerLine = new Scanner(lStrNextLine);
                scannerLine.useDelimiter("="); //$NON-NLS-1$
                String lStrValueName = scannerLine.next();
                String lStrValue = scannerLine.next();
                if (ISimulation1D2DConstants.SIM_SWAN_COORD_SHIFT_X.equalsIgnoreCase(lStrValueName)) {
                    lDoubleShiftX = Double.parseDouble(lStrValue);
                } else if (ISimulation1D2DConstants.SIM_SWAN_COORD_SHIFT_Y.equalsIgnoreCase(lStrValueName)) {
                    lDoubleShiftY = Double.parseDouble(lStrValue);
                }
                scannerLine.close();
            } else {
                // System.out.println("Empty or invalid line. Unable to process. Processing the results without shift!");
            }
        }
        if (lDoubleShiftX != null && lDoubleShiftY != null)
            lPosRes = GeometryFactory.createGM_Position(lDoubleShiftX, lDoubleShiftY);

    } catch (Exception e) {
        e.printStackTrace();
    } finally {
        if (scannerFile != null)
            scannerFile.close();
        if (scannerLine != null)
            scannerLine.close();
    }

    return lPosRes;
}

From source file:io.selendroid.android.impl.DefaultAndroidEmulator.java

private static Map<String, Integer> mapDeviceNamesToSerial() {
    Map<String, Integer> mapping = new HashMap<String, Integer>();
    CommandLine command = new CommandLine(AndroidSdk.adb());
    command.addArgument("devices");
    Scanner scanner;
    try {//from  w  w  w .  jav a2 s .c  o  m
        scanner = new Scanner(ShellCommand.exec(command));
    } catch (ShellCommandException e) {
        return mapping;
    }
    while (scanner.hasNextLine()) {
        String line = scanner.nextLine();
        Pattern pattern = Pattern.compile("emulator-\\d\\d\\d\\d");
        Matcher matcher = pattern.matcher(line);
        if (matcher.find()) {
            String serial = matcher.group(0);

            Integer port = Integer.valueOf(serial.replaceAll("emulator-", ""));
            TelnetClient client = null;
            try {
                client = new TelnetClient(port);
                String avdName = client.sendCommand("avd name");
                mapping.put(avdName, port);
            } catch (AndroidDeviceException e) {
                // ignore
            } finally {
                if (client != null) {
                    client.close();
                }
            }
            Socket socket = null;
            PrintWriter out = null;
            BufferedReader in = null;
            try {
                socket = new Socket("127.0.0.1", port);
                out = new PrintWriter(socket.getOutputStream(), true);
                in = new BufferedReader(new InputStreamReader(socket.getInputStream()));
                if (in.readLine() == null) {
                    throw new AndroidDeviceException("error");
                }

                out.write("avd name\r\n");
                out.flush();
                in.readLine();// OK
                String avdName = in.readLine();
                mapping.put(avdName, port);
            } catch (Exception e) {
                // ignore
            } finally {
                try {
                    out.close();
                    in.close();
                    socket.close();
                } catch (Exception e) {
                    // do nothing
                }
            }
        }
    }
    scanner.close();

    return mapping;
}

From source file:com.shieldsbetter.sbomg.Cli.java

private static String expectLine(Scanner input, String failureMessage) throws OperationException {
    String result = null;//from w w w  .ja  va 2s. co m

    while ((result == null || result.isEmpty()) && input.hasNextLine()) {
        result = input.nextLine();
    }

    if (result == null || result.isEmpty()) {
        throw new OperationException(failureMessage);
    }

    return result;
}

From source file:com.shieldsbetter.sbomg.Cli.java

private static String expectBlock(Scanner input, String blockDesc) throws OperationException {
    String block = "";
    String curLine = "dummy";
    while (input.hasNextLine() && !curLine.isEmpty()) {
        curLine = input.nextLine();/* w w  w  . j  av  a  2 s .c om*/

        if (curLine.startsWith("% ")) {
            block += curLine.substring(("% ".length())) + "\n";
        } else {
            if (!curLine.trim().isEmpty()) {
                if (block.isEmpty()) {
                    throw new OperationException("Expecting a " + blockDesc
                            + "block line starting with '%' followed by a " + "space.");
                } else {
                    throw new OperationException(
                            "Text blocks must be " + "continued by block lines starting with '%' "
                                    + "followed by a space, or the block should be"
                                    + "terminated by EOF or a blank line.");
                }
            }
        }
    }

    if (block.isEmpty()) {
        throw new OperationException("Expecting a " + blockDesc + " block " + "starting with '%'. Found EOF.");
    }

    return block;
}

From source file:etymology.config.CommandLineReader.java

public static void parseConfigFile(CommandLine cl, Configuration config) {
    String configFileName = cl.getOptionValue(CLOptions.CONFIG_FILE_OPTION);
    try {/*from   w  ww .  j  a v a  2s .  c  o m*/
        if (null == configFileName) {
            return;
        }
        File configFile = new File(configFileName);
        if (!configFile.exists()) {
            //Does not exist
            System.err.println("Config file \"" + configFileName + "\" does not exist!");
            System.exit(2);
        }
        //Parsing
        Scanner scanner = new Scanner(configFile);
        while (scanner.hasNextLine()) {
            String line = scanner.nextLine();
            if (line.contains("#")) {
                line = line.substring(0, line.indexOf("#"));
            }
            line = line.trim();
            if (0 == line.length()) {
                continue;
            }
            parseLine(line, config, cl);
        }
    } catch (IOException ex) {
        Logger.getLogger(Configuration.class.getName()).log(Level.SEVERE, null, ex);
    }
}

From source file:com.amazonaws.auth.profile.internal.ProfilesConfigFileParser.java

/**
 * Loads the credentials from the given input stream.
 *
 * @param is input stream from where the profile details are read.
 * @throws IOException/*  w  w  w.  j av a2 s .co m*/
 */
private static Map<String, Profile> loadProfiles(InputStream is) throws IOException {
    Scanner scanner = new Scanner(is);
    AWSCredentials credentials = null;
    String profileName = null;
    String accessKey = null;
    String secretKey = null;
    String line = null;
    boolean accessKeyRead = false;
    boolean secretKeyRead = false;
    ProfileCredentialScannerState scannerState = ProfileCredentialScannerState.READ_CONFIG_NAME;
    HashMap<String, Profile> profilesByName = new HashMap<String, Profile>();

    try {
        while (scanner.hasNextLine()) {
            line = scanner.nextLine();
            line = line.trim();

            if (line.isEmpty())
                continue;

            if (!line.startsWith("[") && !line.startsWith(AWS_ACCESS_KEY_ID)
                    && !line.startsWith(AWS_SECRET_ACCESS_KEY)) {
                LOG.info("Unsupported configuration setting: " + line);
                continue;
            }

            switch (scannerState) {
            case READ_CONFIG_NAME:
                profileName = parseProfileName(line);
                scannerState = ProfileCredentialScannerState.READ_KEY;
                break;
            case READ_KEY:
                if (line.startsWith(AWS_ACCESS_KEY_ID) && !accessKeyRead) {
                    accessKey = parseAccessKey(line);
                    accessKeyRead = true;
                } else if (!secretKeyRead) {
                    secretKey = parseSecretKey(line);
                    secretKeyRead = true;
                } else {
                    throw new AmazonClientException(
                            "Unable to load Amazon AWS Credentials. File not in proper format.");
                }
                break;
            }

            if (accessKeyRead && secretKeyRead) {

                assertParameterNotEmpty(profileName,
                        "Unable to load credentials into profile. ProfileName is empty. " + line);
                assertParameterNotEmpty(accessKey,
                        "Unable to load credentials into profile. AWS Access Key ID is empty. " + line);
                assertParameterNotEmpty(secretKey,
                        "Unable to load credentials into profile. AWS Secret Access Key is empty. " + line);

                credentials = new BasicAWSCredentials(accessKey, secretKey);
                profilesByName.put(profileName, new Profile(credentials));
                scannerState = ProfileCredentialScannerState.READ_CONFIG_NAME;
                accessKeyRead = false;
                secretKeyRead = false;
            }
        }
        if (scannerState != ProfileCredentialScannerState.READ_CONFIG_NAME || accessKeyRead || secretKeyRead) {
            throw new AmazonClientException(
                    "Unable to load credentials into profile. Profile Name or AWS Access Key ID or AWS Secret Access Key missing for a profile.");
        }

    } finally {
        scanner.close();
    }

    return profilesByName;
}