Example usage for java.lang StringBuilder charAt

List of usage examples for java.lang StringBuilder charAt

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Introduction

In this page you can find the example usage for java.lang StringBuilder charAt.

Prototype

char charAt(int index);

Source Link

Document

Returns the char value at the specified index.

Usage

From source file:org.batoo.common.util.StringUtils.java

/**
 * Trim trailing whitespace from the given String.
 * //from w  ww. j a v a  2  s .  c o m
 * @param str
 *            the String to check
 * @return the trimmed String
 * @see java.lang.Character#isWhitespace
 */
public static String trimTrailingWhitespace(String str) {
    if (!StringUtils.hasLength(str)) {
        return str;
    }
    final StringBuilder sb = new StringBuilder(str);
    while ((sb.length() > 0) && Character.isWhitespace(sb.charAt(sb.length() - 1))) {
        sb.deleteCharAt(sb.length() - 1);
    }
    return sb.toString();
}

From source file:android.databinding.tool.LayoutXmlProcessor.java

/**
 * Generates a string identifier that can uniquely identify the given layout bundle.
 * This identifier can be used when we need to export data about this layout bundle.
 *//*w  w w  .  j  av a2 s  . com*/
public String generateExportFileName(ResourceBundle.LayoutFileBundle layout) {
    StringBuilder name = new StringBuilder(layout.getFileName());
    name.append('-').append(layout.getDirectory());
    for (int i = name.length() - 1; i >= 0; i--) {
        char c = name.charAt(i);
        if (c == '-') {
            name.deleteCharAt(i);
            c = Character.toUpperCase(name.charAt(i));
            name.setCharAt(i, c);
        }
    }
    return name.toString();
}

From source file:org.batoo.common.util.StringUtils.java

/**
 * Trim leading and trailing whitespace from the given String.
 * //from  w w  w.ja  v a 2s .  c  o m
 * @param str
 *            the String to check
 * @return the trimmed String
 * @see java.lang.Character#isWhitespace
 */
public static String trimWhitespace(String str) {
    if (!StringUtils.hasLength(str)) {
        return str;
    }
    final StringBuilder sb = new StringBuilder(str);
    while ((sb.length() > 0) && Character.isWhitespace(sb.charAt(0))) {
        sb.deleteCharAt(0);
    }
    while ((sb.length() > 0) && Character.isWhitespace(sb.charAt(sb.length() - 1))) {
        sb.deleteCharAt(sb.length() - 1);
    }
    return sb.toString();
}

From source file:org.cafed00d.subtitle.FileProcessor.java

/**
 * Examines the line of text given looking for words. It recognizes that a
 * word is starting when it comes across a letter. Once it finds a letter, it
 * passes control to {@link WordProcessor} which will extract the current word
 * and determine if it can be corrected.
 * //from  ww w . j a  v a2  s  .  c o  m
 * @param line
 *          The line of text to process.
 * @return The processed, corrected, line of text.
 */
private String processLine(String line) {
    StringBuilder result = new StringBuilder(line);
    for (int i = 0; i < result.length(); i++) {
        if (Character.isLetter(result.charAt(i))) {
            WordProcessor word = new WordProcessor(result, i);
            i = word.process();
            if (word.isCorrectionMade()) {
                correctedCount++;
                if (generateLog) {
                    if (!correctedWords.containsKey(word.getOriginalWord())) {
                        correctedWords.put(word.getOriginalWord(), word.getCorrectedWord());
                    }
                }
            }
            wordCount++;
        }
    }
    return result.toString();
}

From source file:com.autentia.wuija.web.DownloadServlet.java

/**
 * Process GET request/*from  www  .  jav  a 2 s .  c  o  m*/
 * 
 * @param request HTTP request
 * @param response HTTP response
 * @throws javax.servlet.ServletException
 */
@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException {
    final String requestUri = request.getRequestURI();
    final String fileName = requestUri.substring(requestUri.lastIndexOf('/') + 1, requestUri.length());

    if (log.isTraceEnabled()) {
        log.trace("fileName='" + fileName + "'.");
    }

    if (fileName == null) {
        final String msg = "Filename not found in the requested URL.";
        log.error(msg);
        throw new ServletException(msg);
    }

    final StringBuilder tempFilePath = new StringBuilder(System.getProperty("java.io.tmpdir"));

    if (log.isTraceEnabled()) {
        log.trace("tempdir = " + tempFilePath);
    }

    if (tempFilePath.charAt(tempFilePath.length() - 1) != File.separatorChar) {
        tempFilePath.append(File.separatorChar);
    }

    tempFilePath.append(fileName);

    if (log.isTraceEnabled()) {
        log.trace("filePath = " + tempFilePath);
    }

    final File file = new File(tempFilePath.toString());
    file.deleteOnExit();

    String clientFileName = request.getHeader(FILE_NAME);
    if (clientFileName == null) {
        clientFileName = file.getName();
    }
    response.setHeader("Pragma", "no-cache");
    response.setHeader("Content-disposition", "attachment; filename=" + clientFileName);

    // XXX [wuija]: reemplazar por una librera de mimetypes
    if (clientFileName.toLowerCase().endsWith(".csv")) {
        response.setContentType("application/vnd.ms-excel");
    } else if (clientFileName.toLowerCase().endsWith(".zip")) {
        response.setContentType("application/zip");
    } else if (clientFileName.toLowerCase().endsWith(".pdf")) {
        response.setContentType("application/pdf");
    }
    response.setContentLength((int) file.length());

    try {
        int read = 0;
        final byte[] bytes = new byte[1024];
        final FileInputStream in = new FileInputStream(file);

        while ((read = in.read(bytes)) != -1) {
            response.getOutputStream().write(bytes, 0, read);
        }
        in.close();

        log.trace("The contents of the file have been written.");

        response.getOutputStream().flush();
        response.getOutputStream().close();
    } catch (IOException e) {
        final String msg = "Error writting the contents of the file.";
        log.error(msg);
        throw new ServletException(msg, e);
    }

    file.delete();
    log.trace("File='" + file + "' deleted.");

}

From source file:net.sourceforge.fenixedu.util.UniqueAcronymCreator.java

private static StringBuilder appendLastChar(int index, StringBuilder acronym) {
    if (logger.isDebugEnabled()) {
        logger.info("appendLastChar, called with index " + index + " and " + acronym);
    }/* w  w  w. ja va  2 s . co  m*/

    for (int i = splitsName.length - 1; i > -1; i--) {
        if (!(isValidAcception(splitsName[i])) && splitsName[i].length() > index) {
            String toAppend = (splitsName[i].substring(index, index + 1));
            toAppend = (toLowerCase) ? toAppend.toLowerCase() : toAppend.toUpperCase();

            if (acronym.toString().contains("-")) {
                int hiffen = acronym.toString().indexOf("-");
                if (isValidNumeration(String.valueOf(acronym.charAt(hiffen + 1)))
                        || hasNumber(String.valueOf(acronym.charAt(hiffen + 1)))) {
                    acronym.insert(hiffen, toAppend);
                    if (logger.isDebugEnabled()) {
                        logger.info("appendLastChar, found a '-', appending before hiffen " + toAppend);
                    }
                } else {
                    acronym.append(toAppend);
                    if (logger.isDebugEnabled()) {
                        logger.info("appendLastChar, found a '-', appending in end " + toAppend);
                    }
                }
            } else {
                if (logger.isDebugEnabled()) {
                    logger.info("appendLastChar, appending " + toAppend);
                }
                acronym.append(toAppend);
            }

            break;
        }
    }

    return acronym;
}

From source file:edu.chalmers.dat076.moviefinder.service.TitleParser.java

/**
 * Removes everything starting from index n until the char c. If interval
 * contains a positive 4 digit number (and nothing else) it is returned,
 * otherwise -1 is returned.//  w w w .  j  av  a  2 s  .c  o m
 *
 * @param mySb
 * @param n
 * @param c
 * @return if interval contains a number it is returned
 */
public int removeUntil(StringBuilder mySb, int n, char c) {
    int re = -1;

    for (int i = n; i <= mySb.length(); i++) {
        if (mySb.charAt(i) == c) {
            if (i - n == 5) {
                re = checkForYear(mySb.subSequence(n + 1, i));
            }
            mySb.delete(n, i + 1);
            break;
        }
    }
    return re;
}

From source file:org.batoo.common.util.StringUtils.java

/**
 * Trim <i>all</i> whitespace from the given String: leading, trailing, and inbetween characters.
 * //from   w  w w  .  j  a v  a2s.  c  om
 * @param str
 *            the String to check
 * @return the trimmed String
 * @see java.lang.Character#isWhitespace
 */
public static String trimAllWhitespace(String str) {
    if (!StringUtils.hasLength(str)) {
        return str;
    }
    final StringBuilder sb = new StringBuilder(str);
    int index = 0;
    while (sb.length() > index) {
        if (Character.isWhitespace(sb.charAt(index))) {
            sb.deleteCharAt(index);
        } else {
            index++;
        }
    }
    return sb.toString();
}

From source file:org.auraframework.test.AuraTestingUtil.java

/**
 * Make a UID be incorrect.//  ww w  .  ja v  a  2 s . c  o  m
 */
protected String modifyUID(String old) {
    StringBuilder sb = new StringBuilder(old);
    char flip = sb.charAt(3);

    // change the character.
    if (flip == 'a') {
        flip = 'b';
    } else {
        flip = 'a';
    }
    sb.setCharAt(3, flip);
    return sb.toString();
}

From source file:org.apache.lens.api.jaxb.YAMLToStringStrategy.java

private StringBuilder appendNewLine(StringBuilder buffer) {
    if (buffer.length() != 0 && buffer.charAt(buffer.length() - 1) != '\n') {
        while (buffer.charAt(buffer.length() - 1) == ' ') {
            buffer.setLength(buffer.length() - 1);
        }//from w ww .  j a v a 2  s.co m
        buffer.append("\n");
    }
    return buffer;
}