Example usage for java.lang String replaceFirst

Introduction

In this page you can find the example usage for java.lang String replaceFirst.

Prototype

public String replaceFirst(String regex, String replacement)

Source Link

Document

Replaces the first substring of this string that matches the given regular expression with the given replacement.

Usage

From source file:datawarehouse.CSVLoader.java

/**
 * Parse CSV file using OpenCSV library and load in given database table.
 *
 * @param csvFile Input CSV file//from  w w  w.  jav  a2s  . c  o  m
 * @param tableName Database table name to import data
 * @param truncateBeforeLoad Truncate the table before inserting new
 * records.
 * @throws Exception
 */
public void loadCSV(String csvFile, String tableName, boolean truncateBeforeLoad) throws Exception {

    CSVReader csvReader = null;
    if (null == this.connection) {
        throw new Exception("Not a valid connection.");
    }
    try {

        csvReader = new CSVReader(new FileReader(csvFile), this.seprator);

    } catch (Exception e) {
        e.printStackTrace();
        throw new Exception("Error occured while executing file. " + e.getMessage());
    }

    String[] headerRow = csvReader.readNext();

    if (null == headerRow) {
        throw new FileNotFoundException(
                "No columns defined in given CSV file." + "Please check the CSV file format.");
    }

    String questionmarks = StringUtils.repeat("?,", headerRow.length);
    questionmarks = (String) questionmarks.subSequence(0, questionmarks.length() - 1);

    String query = SQL_INSERT.replaceFirst(TABLE_REGEX, tableName);
    query = query.replaceFirst(KEYS_REGEX, StringUtils.join(headerRow, ","));
    query = query.replaceFirst(VALUES_REGEX, questionmarks);

    System.out.println("Query: " + query);

    String[] nextLine;
    Connection con = null;
    PreparedStatement ps = null;
    try {
        con = this.connection;
        con.setAutoCommit(false);
        ps = con.prepareStatement(query);

        if (truncateBeforeLoad) {
            //delete data from table before loading csv
            con.createStatement().execute("DELETE FROM " + tableName);
        }

        final int batchSize = 1000;
        int count = 0;
        while ((nextLine = csvReader.readNext()) != null) {
            if (null != nextLine) {
                int index = 1;
                for (String string : nextLine) {
                    //System.out.print(string + ": ");
                    try {
                        DateFormat format = new SimpleDateFormat("dd.mm.yyyy");
                        Date date = format.parse(string);
                        ps.setDate(index++, new java.sql.Date(date.getTime()));
                        //System.out.println("date");
                    } catch (ParseException | SQLException e) {
                        try {
                            Double income = parseDouble(string.replace(",", "."));
                            ps.setDouble(index++, income);
                            //System.out.println("double");
                        } catch (NumberFormatException | SQLException err) {
                            ps.setString(index++, string);
                            //System.out.println("string");
                        }
                    }
                }
                ps.addBatch();
            }
            if (++count % batchSize == 0) {
                ps.executeBatch();
            }
        }
        ps.executeBatch(); // insert remaining records
        con.commit();
    } catch (Exception e) {
        con.rollback();
        e.printStackTrace();
        throw new Exception("Error occured while loading data from file to database." + e.getMessage());
    } finally {
        if (null != ps) {
            ps.close();
        }
        if (null != con) {
            con.close();
        }

        csvReader.close();
    }
}

From source file:com.mycompany.securerest.auth.AuthenticationService.java

public boolean authenticate(String authCredentials) {

    if (null == authCredentials)
        return false;
    // header value format will be "Basic encodedstring" for Basic
    // authentication. Example "Basic YWRtaW46YWRtaW4="
    final String encodedUserPassword = authCredentials.replaceFirst("Basic" + " ", "");
    String usernameAndPassword = null;
    try {/* ww  w. ja va2 s .  c  om*/
        byte[] decodedBytes = Base64.decodeBase64(encodedUserPassword);
        usernameAndPassword = new String(decodedBytes, "UTF-8");
    } catch (IOException e) {
        e.printStackTrace();
    }
    final StringTokenizer tokenizer = new StringTokenizer(usernameAndPassword, ":");
    final String username = tokenizer.nextToken();
    final String password = tokenizer.nextToken();

    // we have fixed the userid and password as admin
    // call some UserService/LDAP here
    boolean authenticationStatus = "admin".equals(username) && "admin".equals(password);
    return authenticationStatus;
}

From source file:net.morphbank.mbsvc3.webservices.RestfulService.java

protected String saveResponseXmlAsFile(String reqFileName, Object xmlDoc) {
    String fileName = reqFileName.replaceFirst("req", "resp");
    // open a file
    try {/*from w ww  . jav a2s .  co m*/
        FileOutputStream outFile = new FileOutputStream(filepath + fileName);
        PrintWriter out = new PrintWriter(outFile);
        XmlUtils.printXml(out, xmlDoc);
        out.close();
        outFile.close();
    } catch (Exception e) {
        e.printStackTrace();
    }
    return fileName;

}

From source file:org.obiba.magma.beans.BeanVariableValueSourceFactory.java

protected String unprefixName(String name) {
    return prefix != null ? name.replaceFirst(prefix, "") : name;
}

From source file:com.stratio.cassandra.index.schema.ColumnMapperBigDecimal.java

/** {@inheritDoc} */
@Override//from w  w w .  j  a va2  s .  c o m
public String indexValue(String name, Object value) {

    // Check not null
    if (value == null) {
        return null;
    }

    // Parse big decimal
    String svalue = value.toString();
    BigDecimal bd;
    try {
        bd = new BigDecimal(value.toString());
    } catch (NumberFormatException e) {
        String message = String.format("Field %s requires a base 10 decimal, but found \"%s\"", name, svalue);
        throw new IllegalArgumentException(message);
    }

    // Split integer and decimal part
    bd = bd.stripTrailingZeros();
    String[] parts = bd.toPlainString().split("\\.");
    String integerPart = parts[0];
    String decimalPart = parts.length == 1 ? "0" : parts[1];

    if (integerPart.replaceFirst("-", "").length() > integerDigits) {
        throw new IllegalArgumentException("Too much digits in integer part");
    }
    if (decimalPart.length() > decimalDigits) {
        throw new IllegalArgumentException("Too much digits in decimal part");
    }

    BigDecimal complemented = bd.add(complement);
    String bds[] = complemented.toString().split("\\.");
    integerPart = bds[0];
    decimalPart = bds.length == 2 ? bds[1] : "0";
    integerPart = StringUtils.leftPad(integerPart, integerDigits + 1, '0');

    return integerPart + "." + decimalPart;
}

From source file:net.proest.librepilot.web.handler.ObjectHandler.java

public void handlePost(String target, Request baseRequest, HttpServletRequest request,
        HttpServletResponse response) throws IOException, ServletException {
    PrintWriter out = response.getWriter();
    BufferedReader br = request.getReader();
    String json = "";
    while (br.ready()) {
        json += br.readLine();/*from w w w  .  j a  v  a 2 s  .c  o  m*/
    }
    System.out.println(json);
    json = json.replaceFirst("json=", "");
    System.out.println(json);
    json = URLDecoder.decode(json, "utf-8");
    System.out.println(json);
    System.out.println();
    ObjectMapper mapper = new ObjectMapper();
    JsonNode actualObj = mapper.readTree(json);
    out.println(actualObj.asText());
    out.println(mapper.toString());
}

From source file:ca.sqlpower.wabit.report.selectors.ComboBoxSelector.java

public void setSourceKey(String sourceKey) {

    String oldSourceKey = this.sourceKey;

    if (sourceKey != null) {
        this.sourceKey = sourceKey.replaceFirst("\\$", "").replaceFirst("\\{", "").replaceFirst("\\}", "");
    } else {/*from   ww w .j a v a  2  s . co  m*/
        this.sourceKey = null;
    }

    if (!ObjectUtils.equals(this.sourceKey, oldSourceKey)) {

        Collection<Object> values = getPossibleValues();

        if (values.size() > 0) {
            this.setSelectedValue(values.iterator().next());
        } else {
            this.setSelectedValue(null);
        }

        firePropertyChange("sourceKey", oldSourceKey, this.sourceKey);
        fireSelectionChanged();
    }
}

From source file:ch.rgw.tools.StringTool.java

/**
 * Verknpft die Elemente eines String-Arrays mittels tren zu einem String
 * /*from w  w w  .  ja  v a  2 s  . c  o  m*/
 * @param arr
 *            - String Array
 * @param tren
 *            - Verbindingsstring
 * @return den verknpften String
 */
static public String join(final String[] arr, final String tren) {
    if ((arr == null) || (arr.length == 0)) {
        return "";
    }
    StringBuffer res = new StringBuffer(100);
    for (int i = 0; i < arr.length; i++) {
        if (arr[i] == null) {
            continue;
        }
        res.append(arr[i]).append(tren);
    }
    String r2 = res.toString();
    return r2.replaceFirst(tren + "$", "");
}

From source file:org.alfresco.bm.event.AbstractEventProcessor.java

@Override
public void setBeanName(String beanName) {
    String eventName = beanName.replaceFirst(Event.EVENT_BEAN_PREFIX, "");
    setEventName(eventName);//from  w  w w  .j a  v  a2 s .  c o  m
    this.name = beanName;
}

From source file:org.obiba.mica.file.search.FileFilterHelper.java

/**
 * Extract the entity identifier from base path.
 *
 * @param basePath// w  ww  . j  a  va 2 s  .  c o m
 * @param replace  String to be removed at the beginning of base path
 * @return
 */
private String extractId(String basePath, String replace) {
    String p = basePath.replaceFirst(replace, "");
    int idx = p.lastIndexOf('/');
    return idx <= 0 ? p : p.substring(0, idx);
}