Example usage for java.lang String getChars

Introduction

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

Prototype

public void getChars(int srcBegin, int srcEnd, char dst[], int dstBegin) 

Source Link

Document

Copies characters from this string into the destination character array.

Usage

From source file:Base64.java

/**
 * Decode the base64 data./*from  w w w.j a va2  s. c om*/
 * @param data The base64 encoded data to be decoded
 * @return The decoded data
 */
public static byte[] decode(String data) {
    int ibufcount = 0;
    int slen = data.length();
    char[] ibuf = new char[slen < BUF_SIZE + 3 ? slen : BUF_SIZE + 3];
    byte[] obuf = new byte[(slen >> 2) * 3 + 3];
    int obufcount = 0;
    int blen;

    for (int i = 0; i < slen; i += BUF_SIZE) {
        // buffer may contain unprocessed characters from previous step
        if (i + BUF_SIZE <= slen) {
            data.getChars(i, i + BUF_SIZE, ibuf, ibufcount);
            blen = BUF_SIZE + ibufcount;
        } else {
            data.getChars(i, slen, ibuf, ibufcount);
            blen = slen - i + ibufcount;
        }

        for (int j = ibufcount; j < blen; j++) {
            char ch = ibuf[j];
            if (ch == S_BASE64PAD || ch < S_DECODETABLE.length && S_DECODETABLE[ch] != Byte.MAX_VALUE) {
                ibuf[ibufcount++] = ch;
                // as soon as we have 4 chars process them
                if (ibufcount == 4) {
                    ibufcount = 0;
                    obufcount += decode0(ibuf, obuf, obufcount);
                }
            }
        }
    }
    if (obufcount == obuf.length) {
        return obuf;
    }
    byte[] ret = new byte[obufcount];
    System.arraycopy(obuf, 0, ret, 0, obufcount);
    return ret;
}

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From source file:Main.java

public static String nextVolumeName(String arcName, boolean oldNumbering) {
    if (!oldNumbering) {
        // part1.rar, part2.rar, ...
        int len = arcName.length();
        int indexR = len - 1;
        while ((indexR >= 0) && !isDigit(arcName.charAt(indexR))) {
            indexR--;// w  w w . j av a 2s .c  om
        }
        int index = indexR + 1;
        int indexL = indexR - 1;
        while ((indexL >= 0) && isDigit(arcName.charAt(indexL))) {
            indexL--;
        }
        if (indexL < 0) {
            return null;
        }
        indexL++;
        StringBuilder buffer = new StringBuilder(len);
        buffer.append(arcName, 0, indexL);
        char[] digits = new char[indexR - indexL + 1];
        arcName.getChars(indexL, indexR + 1, digits, 0);
        indexR = digits.length - 1;
        while ((indexR >= 0) && (++digits[indexR]) == '9' + 1) {
            digits[indexR] = '0';
            indexR--;
        }
        if (indexR < 0) {
            buffer.append('1');
        }
        buffer.append(digits);
        buffer.append(arcName, index, len);
        return buffer.toString();
    } else {
        // .rar, .r00, .r01, ...
        int len = arcName.length();
        if ((len <= 4) || (arcName.charAt(len - 4) != '.')) {
            return null;
        }
        StringBuilder buffer = new StringBuilder();
        int off = len - 3;
        buffer.append(arcName, 0, off);
        if (!isDigit(arcName.charAt(off + 1)) || !isDigit(arcName.charAt(off + 2))) {
            buffer.append("r00");
        } else {
            char[] ext = new char[3];
            arcName.getChars(off, len, ext, 0);
            int i = ext.length - 1;
            while ((++ext[i]) == '9' + 1) {
                ext[i] = '0';
                i--;
            }
            buffer.append(ext);
        }
        return buffer.toString();
    }
}

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From source file:org.yawlfoundation.yawl.util.StringUtil.java

/**
 * Utility method to take a string and return the string in revserse sequence.
 *
 * @param inputString String to be reversed
 * @return Reversed string//from   w w w .  ja  va2s  . c  om
 */
public static String reverseString(String inputString) {
    char[] inputChars = new char[inputString.length()];
    char[] outputChars = new char[inputString.length()];

    inputString.getChars(0, inputString.length(), inputChars, 0);
    int pointer = inputChars.length - 1;

    for (int i = 0; i <= inputChars.length - 1; i++) {
        outputChars[pointer] = inputChars[i];
        pointer--;
    }

    return new String(outputChars);
}

---

From source file:org.owasp.webgoat.lessons.Encoding.java

/**
 * Description of the Method// w  w  w  .  j a  va 2 s  .c  o m
 * 
 * @param asciiString
 *            Description of the Parameter
 * @return Description of the Return Value
 */

public static String hexEncode(String asciiString) {
    char[] ascii = new char[asciiString.length()];
    asciiString.getChars(0, asciiString.length(), ascii, 0);
    StringBuffer hexBuff = new StringBuffer();
    for (int i = 0; i < asciiString.length(); i++) {
        hexBuff.append("%");
        hexBuff.append(Integer.toHexString(ascii[i]));
    }
    return hexBuff.toString().toUpperCase();
}

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From source file:com.laxser.blitz.web.impl.mapping.MappingFactory.java

public static List<Mapping> parse(String path) {

    ///*from  w  w  w. j a v  a2  s.  c  om*/
    if (path.equals("/")) {
        path = "";
    } else if (path.length() > 0 && path.charAt(0) != '/') {
        path = "/" + path;
    }
    if (path.length() > 1 && path.endsWith("/")) {
        if (path.endsWith("//")) {
            throw new IllegalArgumentException(
                    "invalid path '" + path + "' : don't end with more than one '/'");
        }
        path = path.substring(0, path.length() - 1);
    }

    if (path.length() == 0) {
        return Collections.emptyList();
    }

    List<Mapping> mappings = new ArrayList<Mapping>(8);

    //

    char[] chars = new char[path.length()];
    path.getChars(0, path.length(), chars, 0);
    int paramBegin = -1;
    int paramNameEnd = -1;
    int constantBegin = -1;
    int bracketDeep = 0; // > 0 ?{}?
    boolean startsWithBracket = true;
    for (int i = 0; i < chars.length; i++) {
        switch (chars[i]) {
        case '$':
            if (i + 1 >= chars.length) {
                throw new IllegalArgumentException(//
                        "invalid string '" + path + "', don't end with '$'");
            }
            // constains$name"constains"
            if (constantBegin >= 0) {
                mappings.add(createConstantMapping(path, constantBegin, i));
                constantBegin = -1;
            }
            // $name$xyz"$name"
            if (paramBegin >= 0) {
                mappings.add(createRegexMapping(path, paramBegin, paramNameEnd, i));
                paramBegin = -1;
                paramNameEnd = -1;
            }
            if (chars[i + 1] != '{') {
                paramBegin = i + 1;
                bracketDeep = 1;
                startsWithBracket = false;
            }
            break;
        case '{':
            if (bracketDeep++ > 0) { //++?
                break;
            }
            if (paramBegin < 0) {
                paramBegin = i + 1;
            }
            // $name{xyz}"$name"
            else {
                mappings.add(createRegexMapping(path, paramBegin, paramNameEnd, i));
                paramBegin = -1;
                paramNameEnd = -1;
            }
            // constains{name}"constains"
            if (constantBegin >= 0) {
                mappings.add(createConstantMapping(path, constantBegin, i));
                constantBegin = -1;
            }
            break;
        case ':':
            if (paramBegin < 0) {
                throw new IllegalArgumentException(//
                        "invalid string '" + path + "', wrong ':' at position " + i);
            } else if (paramNameEnd > 0) {
                throw new IllegalArgumentException(//
                        "invalid string '" + path + "', duplicated ':' at position " + i);
            } else {
                paramNameEnd = i;
            }
            break;
        case '}':
            if (--bracketDeep > 0) { // --?
                break;
            }
            if (paramBegin < 0) {
                throw new IllegalArgumentException(//
                        "invalid string '" + path + "', wrong '}' at position " + i);
            } else {
                mappings.add(createRegexMapping(path, paramBegin, paramNameEnd, i));
                paramBegin = -1;
                paramNameEnd = -1;
            }
            break;
        case '/':
            if (paramBegin < 0) {
                if (constantBegin >= 0) {
                    mappings.add(createConstantMapping(path, constantBegin, i));
                }
                constantBegin = i;
                break;
            } else if (bracketDeep == 0 || (bracketDeep == 1 && !startsWithBracket)) {
                mappings.add(createRegexMapping(path, paramBegin, paramNameEnd, i));
                paramBegin = -1;
                constantBegin = i;
                paramNameEnd = -1;
                bracketDeep = 0;
                break;
            }

        default:
            if (constantBegin == -1 && paramBegin == -1) {
                constantBegin = i;
            }
            break;
        }
    }
    if (constantBegin >= 0) {
        mappings.add(createConstantMapping(path, constantBegin, chars.length));
        constantBegin = -1;
    }
    if (paramBegin >= 0) {
        mappings.add(createRegexMapping(path, paramBegin, paramNameEnd, chars.length));
        paramBegin = -1;
        paramNameEnd = -1;
    }
    return mappings;
}

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From source file:ParseNonXML.java

private char[] getChars(String value) {
    char[] chars = new char[value.length()];
    value.getChars(0, value.length(), chars, 0);
    return chars;
}

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From source file:de.thischwa.pmcms.tool.swt.FileNameVerifier.java

@Override
public void verifyText(VerifyEvent e) {
    String string = e.text;
    char[] chars = new char[string.length()];
    string.getChars(0, chars.length, chars, 0);
    for (char chr : chars) {
        if (!(StringUtils.contains(Constants.ALLOWED_CHARS_FOR_FILES, chr))) {
            e.doit = false;/*from  w ww .  ja  v a2 s  .  co m*/
            return;
        }
    }
}

---

From source file:at.tuwien.minimee.migration.parser.Jip_Parser.java

private double interpretLine(String line) {
    char[] chars = new char[line.length()];
    line.getChars(0, line.length() - 1, chars, 0);

    String tot_time = "";

    int countWord = 0;
    int wordEntered = 0;

    for (char c : chars) {
        if (c == ' ') {
            wordEntered = 0;//from  ww  w  .ja v a2s. c  om
            continue;
        }
        if (wordEntered == 0)
            countWord++;
        wordEntered = 1;
        if (countWord == 2)
            tot_time += c;
    }
    tot_time = tot_time.replace(',', '.');
    return Double.parseDouble(tot_time);
}

---

From source file:org.owasp.webgoat.lessons.Encoding.java

/**
 * Description of the Method/*  w  ww.j  a v a  2 s  .  c om*/
 * 
 * @param hexString
 *            Description of the Parameter
 * @return Description of the Return Value
 */

public static String hexDecode(String hexString) {
    try {
        if ((hexString.length() % 3) != 0) {
            return ("String not comprised of Hex digit pairs.");
        }
        char[] chars = new char[hexString.length()];
        char[] convChars = new char[hexString.length() / 3];
        hexString.getChars(0, hexString.length(), chars, 0);
        for (int i = 1; i < hexString.length(); i += 3) {
            String hexToken = new String(chars, i, 2);
            convChars[i / 3] = (char) Integer.parseInt(hexToken, 16);
        }
        return new String(convChars);
    } catch (NumberFormatException nfe) {
        return ("String not comprised of Hex digits");
    }
}

---

From source file:org.springsource.ide.eclipse.commons.core.JdtUtils.java

public static int getLineNumber(IJavaElement element) {
    if (element != null && element instanceof IMethod) {
        try {//from w  ww  . ja  v a  2s . co  m
            IMethod method = (IMethod) element;
            int lines = 0;
            if (method.getDeclaringType() != null && method.getDeclaringType().getCompilationUnit() != null) {
                String targetsource = method.getDeclaringType().getCompilationUnit().getSource();
                if (targetsource != null) {
                    String sourceuptomethod = targetsource.substring(0, method.getNameRange().getOffset());

                    char[] chars = new char[sourceuptomethod.length()];
                    sourceuptomethod.getChars(0, sourceuptomethod.length(), chars, 0);
                    for (char element0 : chars) {
                        if (element0 == '\n') {
                            lines++;
                        }
                    }
                    return new Integer(lines + 1);
                }
            }
        } catch (JavaModelException e) {
        }
    } else if (element != null && element instanceof IType && ((IType) element).getCompilationUnit() != null) {
        try {
            IType type = (IType) element;
            int lines = 0;
            String targetsource = type.getCompilationUnit().getSource();
            if (targetsource != null) {
                String sourceuptomethod = targetsource.substring(0, type.getNameRange().getOffset());

                char[] chars = new char[sourceuptomethod.length()];
                sourceuptomethod.getChars(0, sourceuptomethod.length(), chars, 0);
                for (char element0 : chars) {
                    if (element0 == '\n') {
                        lines++;
                    }
                }
                return new Integer(lines + 1);
            }
        } catch (JavaModelException e) {
        }
    } else if (element != null && element instanceof IField) {
        try {
            IField type = (IField) element;
            int lines = 0;
            ICompilationUnit cu = type.getCompilationUnit();
            if (cu != null) {
                String targetsource = cu.getSource();
                if (targetsource != null) {
                    String sourceuptomethod = targetsource.substring(0, type.getNameRange().getOffset());

                    char[] chars = new char[sourceuptomethod.length()];
                    sourceuptomethod.getChars(0, sourceuptomethod.length(), chars, 0);
                    for (char element0 : chars) {
                        if (element0 == '\n') {
                            lines++;
                        }
                    }
                    return new Integer(lines + 1);
                }
            }
        } catch (JavaModelException e) {
        }
    }
    return new Integer(-1);
}

---

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