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:Main.java

public static String concat(String[] ss, char delim) {
    int n = ss.length;
    if (n == 0)//from w ww .  j a v  a  2  s. co m
        return "";

    if (n == 1) {
        String s = ss[0];
        return s != null ? s : "";
    }
    int len = n - 1;
    for (String s : ss)
        if (s != null)
            len += s.length();

    char[] cs = new char[len];
    for (int i = 0, off = 0; i < n; ++i) {
        if (i != 0)
            cs[off++] = delim;
        String s = ss[i];
        if (s != null) {
            int l = s.length();
            s.getChars(0, l, cs, off);
            off += l;
        }
    }
    return new String(cs);
}

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From source file:ma.glasnost.orika.impl.util.StringUtil.java

/**
 * Remark: Copied from commons-lang3 v3.5
 *
 * <p>Uncapitalizes a String, changing the first character to lower case as per {@link
 * Character#toLowerCase(char)}. No other characters are changed.</p>
 *
 * <p>For a word based algorithm, see {@link org.apache.commons.lang3.text.WordUtils#uncapitalize(String)}.
 * A {@code null} input String returns {@code null}.</p>
 *
 * <pre>//from ww  w. j  a v  a2  s.  c  o m
 * StringUtils.uncapitalize(null)  = null
 * StringUtils.uncapitalize("")    = ""
 * StringUtils.uncapitalize("cat") = "cat"
 * StringUtils.uncapitalize("Cat") = "cat"
 * StringUtils.uncapitalize("CAT") = "cAT"
 * </pre>
 *
 * @param str the String to uncapitalize, may be null
 * @return the uncapitalized String, {@code null} if null String input
 * @see org.apache.commons.lang3.text.WordUtils#uncapitalize(String)
 * @see #capitalize(String)
 * @since 2.0
 */
public static String uncapitalize(final String str) {
    int strLen;
    if (str == null || (strLen = str.length()) == 0) {
        return str;
    }

    final char firstChar = str.charAt(0);
    final char newChar = Character.toLowerCase(firstChar);
    if (firstChar == newChar) {
        // already uncapitalized
        return str;
    }

    char[] newChars = new char[strLen];
    newChars[0] = newChar;
    str.getChars(1, strLen, newChars, 1);
    return String.valueOf(newChars);
}

---

From source file:com.jaspersoft.ireport.designer.data.fieldsproviders.ejbql.EJBQLFieldsReader.java

/**
* Takes a name and returns the same if it is a Java identifier;
* else it substitutes the illegal characters so that it can be an identifier
*
* @param name/*ww w.  j a  v  a 2s.c  o m*/
*/
public static String getLiteral(String name) {
    if (isValidLiteral(name)) {
        return name;
    }

    StringBuffer buffer = new StringBuffer(name.length() + 5);

    char[] literalChars = new char[name.length()];
    name.getChars(0, literalChars.length, literalChars, 0);

    for (int i = 0; i < literalChars.length; i++) {
        if (i == 0 && !Character.isJavaIdentifierStart(literalChars[i])) {
            buffer.append((int) literalChars[i]);
        } else if (i != 0 && !Character.isJavaIdentifierPart(literalChars[i])) {
            buffer.append((int) literalChars[i]);
        } else {
            buffer.append(literalChars[i]);
        }
    }

    return buffer.toString();
}

---

From source file:Main.java

/**
 * Convert Base64 string to byte array.// www.  j  a va2s.com
 * 
 * @param input
 *            Base64 string.
 * @return Converted byte array.
 */
public static byte[] fromBase64(final String input) {
    String tmp = input.replace("\r\n", "");
    if (tmp.length() % 4 != 0) {
        throw new IllegalArgumentException("Invalid base64 input");
    }
    int len = (tmp.length() * 3) / 4;
    int pos = tmp.indexOf('=');
    if (pos > 0) {
        len -= tmp.length() - pos;
    }
    byte[] decoded = new byte[len];
    char[] inChars = new char[4];
    int j = 0;
    int[] b = new int[4];
    for (pos = 0; pos != tmp.length(); pos += 4) {
        tmp.getChars(pos, pos + 4, inChars, 0);
        b[0] = getIndex(inChars[0]);
        b[1] = getIndex(inChars[1]);
        b[2] = getIndex(inChars[2]);
        b[3] = getIndex(inChars[3]);
        decoded[j++] = (byte) ((b[0] << 2) | (b[1] >> 4));
        if (b[2] < 64) {
            decoded[j++] = (byte) ((b[1] << 4) | (b[2] >> 2));
            if (b[3] < 64) {
                decoded[j++] = (byte) ((b[2] << 6) | b[3]);
            }
        }
    }
    return decoded;
}

---

From source file:org.talend.commons.utils.StringUtils.java

public static String loadConvert(String inputStr, String language) {
    if (inputStr == null) {
        return null;
    }/*from  ww w.  j  a v a  2  s . c  o  m*/
    char[] inputChars = new char[inputStr.length()];
    inputStr.getChars(0, inputStr.length(), inputChars, 0);
    String loadConvert = null;
    if (language.equalsIgnoreCase("perl")) { //$NON-NLS-1$
        loadConvert = loadConvert(inputChars, 0, inputStr.length(), new char[inputStr.length()], 'x');
    } else {
        loadConvert = loadConvert(inputChars, 0, inputStr.length(), new char[inputStr.length()], 'u');
    }
    return loadConvert;
}

---

From source file:org.eclipse.swt.snippets.Snippet186.java

static Variant writeSafeArray(String string) {
    // Create a one dimensional safearray containing two VT_UI1 values
    // where VT_UI1 is an unsigned char

    // Define cDims, fFeatures and cbElements
    short cDims = 1;
    short FADF_FIXEDSIZE = 0x10;
    short FADF_HAVEVARTYPE = 0x80;
    short fFeatures = (short) (FADF_FIXEDSIZE | FADF_HAVEVARTYPE);
    int cbElements = 1;
    // Create a pointer and copy the data into it
    int count = string.length();
    char[] chars = new char[count + 1];
    string.getChars(0, count, chars, 0);
    int cchMultiByte = OS.WideCharToMultiByte(CodePage, 0, chars, -1, null, 0, null, null);
    if (cchMultiByte == 0)
        return null;
    long /*int*/ pvData = OS.GlobalAlloc(OS.GMEM_FIXED | OS.GMEM_ZEROINIT, cchMultiByte);
    OS.WideCharToMultiByte(CodePage, 0, chars, -1, pvData, cchMultiByte, null, null);
    int cElements1 = cchMultiByte;
    int lLbound1 = 0;
    // Create a safearray in memory
    long /*int*/ pSafeArray = OS.GlobalAlloc(OS.GMEM_FIXED | OS.GMEM_ZEROINIT, SAFEARRAY.sizeof);
    SAFEARRAY safeArray = new SAFEARRAY();
    safeArray.cDims = cDims;/*from   w  w  w  .  j  av a  2  s.  c  om*/
    safeArray.fFeatures = fFeatures;
    safeArray.cbElements = cbElements;
    safeArray.pvData = pvData;
    SAFEARRAYBOUND safeArrayBound = new SAFEARRAYBOUND();
    safeArray.rgsabound = safeArrayBound;
    safeArrayBound.cElements = cElements1;
    safeArrayBound.lLbound = lLbound1;
    OS.MoveMemory(pSafeArray, safeArray, SAFEARRAY.sizeof);
    // Create a variant in memory to hold the safearray
    long /*int*/ pVariant = OS.GlobalAlloc(OS.GMEM_FIXED | OS.GMEM_ZEROINIT, Variant.sizeof);
    short vt = (short) (OLE.VT_ARRAY | OLE.VT_UI1);
    OS.MoveMemory(pVariant, new short[] { vt }, 2);
    OS.MoveMemory(pVariant + 8, new long /*int*/[] { pSafeArray }, OS.PTR_SIZEOF);
    // Create a by ref variant
    Variant variantByRef = new Variant(pVariant, (short) (OLE.VT_BYREF | OLE.VT_VARIANT));
    return variantByRef;
}

---

From source file:Snippet186.java

static Variant writeSafeArray(String string) {
    // Create a one dimensional safearray containing two VT_UI1 values
    // where VT_UI1 is an unsigned char

    // Define cDims, fFeatures and cbElements
    short cDims = 1;
    short FADF_FIXEDSIZE = 0x10;
    short FADF_HAVEVARTYPE = 0x80;
    short fFeatures = (short) (FADF_FIXEDSIZE | FADF_HAVEVARTYPE);
    int cbElements = 1;
    // Create a pointer and copy the data into it
    int count = string.length();
    char[] chars = new char[count + 1];
    string.getChars(0, count, chars, 0);
    int cchMultiByte = OS.WideCharToMultiByte(CodePage, 0, chars, -1, null, 0, null, null);
    if (cchMultiByte == 0)
        return null;
    int pvData = OS.GlobalAlloc(OS.GMEM_FIXED | OS.GMEM_ZEROINIT, cchMultiByte);
    OS.WideCharToMultiByte(CodePage, 0, chars, -1, pvData, cchMultiByte, null, null);
    int cElements1 = cchMultiByte;
    int lLbound1 = 0;
    // Create a safearray in memory
    // 12 bytes for cDims, fFeatures and cbElements + 4 bytes for pvData +
    // number of dimensions * (size of safearraybound)
    int sizeofSafeArray = 12 + 4 + 1 * 8;
    int pSafeArray = OS.GlobalAlloc(OS.GMEM_FIXED | OS.GMEM_ZEROINIT, sizeofSafeArray);
    // Copy the data into the safe array
    int offset = 0;
    OS.MoveMemory(pSafeArray + offset, new short[] { cDims }, 2);
    offset += 2;/*from ww  w . ja va 2 s  .  com*/
    OS.MoveMemory(pSafeArray + offset, new short[] { fFeatures }, 2);
    offset += 2;
    OS.MoveMemory(pSafeArray + offset, new int[] { cbElements }, 4);
    offset += 4;
    OS.MoveMemory(pSafeArray + offset, new int[] { 0 }, 4);
    offset += 4;
    OS.MoveMemory(pSafeArray + offset, new int[] { pvData }, 4);
    offset += 4;
    OS.MoveMemory(pSafeArray + offset, new int[] { cElements1 }, 4);
    offset += 4;
    OS.MoveMemory(pSafeArray + offset, new int[] { lLbound1 }, 4);
    offset += 4;
    // Create a variant in memory to hold the safearray
    int pVariant = OS.GlobalAlloc(OS.GMEM_FIXED | OS.GMEM_ZEROINIT, Variant.sizeof);
    short vt = (short) (OLE.VT_ARRAY | OLE.VT_UI1);
    OS.MoveMemory(pVariant, new short[] { vt }, 2);
    OS.MoveMemory(pVariant + 8, new int[] { pSafeArray }, 4);
    // Create a by ref variant
    Variant variantByRef = new Variant(pVariant, (short) (OLE.VT_BYREF | OLE.VT_VARIANT));
    return variantByRef;
}

---

From source file:org.etudes.jforum.dao.oracle.OracleUtils.java

/**
 * Writes clob to database //  w  w  w  .  ja va 2 s. c  om
 * @param query
 * @param idForQuery
 * @param value
 * @throws IOException
 * @throws SQLException
 */
public static void writeClobUTF16BinaryStream(String query, int idForQuery, String value)
        throws IOException, SQLException {
    PreparedStatement p = JForum.getConnection().prepareStatement(query);
    p.setInt(1, idForQuery);

    ResultSet rs = p.executeQuery();
    rs.next();
    Clob clobval = rs.getClob(1);

    if (logger.isDebugEnabled())
        logger.debug("clobval is " + clobval.getClass().getName());

    Writer clobWriter = clobval.setCharacterStream(0L);

    char[] cbuffer = new char[value.length()];
    int srcBegin = 0, dstBegin = 0;
    value.getChars(srcBegin, value.length(), cbuffer, dstBegin);
    clobWriter.write(cbuffer);

    clobWriter.close();

    rs.close();
    p.close();
}

---

From source file:Base64.java

/**
 * Decode the base64 data./*w  w  w .  j a  va  2  s.  com*/
 * @param data The base64 encoded data to be decoded
 * @param ostream The OutputStream to which the decoded data should be
 *                written
 */
public static void decode(String data, OutputStream ostream) throws IOException {
    char[] ibuf = new char[BUF_SIZE + 4];
    byte[] obuf = new byte[3];
    int slen = data.length();
    int blen;
    int ibufcount = 0;

    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 sson as we have 4 chars process them
                if (ibufcount == 4) {
                    ibufcount = 0;
                    int obufcount = decode0(ibuf, obuf, 0);
                    ostream.write(obuf, 0, obufcount);
                }
            }
        }
    }
}

---

From source file:com.shishu.utility.string.StringUtil.java

/**
 * ????/*from  www .j  a  va  2 s .co  m*/
 * 
 * @param s1
 *            1
 * @param s2
 *            2
 * @return 
 * 
 * @author wangtao
 */
public static String prepareURLString(String s1, String s2) {
    int len1 = s1.length();
    int len2 = s2.length();

    char[] b1 = new char[len1];
    char[] b2 = new char[len2];

    s1.getChars(0, len1, b1, 0);
    s2.getChars(0, len2, b2, 0);

    StringBuilder stringBuilder = new StringBuilder("");

    // ???@
    int dis = Math.abs(len1 - len2);
    int j = 0;
    char[] high, low;

    if (len1 > len2) {
        high = b1;
        low = b2;
    } else {
        high = b2;
        low = b1;
    }

    for (int i = 0; i < high.length; i++) {

        if (high[i] == low[j]) {
            stringBuilder.append(high[i]);
        } else if (stringBuilder.charAt(stringBuilder.length() - 1) != '@') {
            stringBuilder.append("@");
        }

        if (stringBuilder.charAt(stringBuilder.length() - 1) == '@' && dis > 0) {
            dis--;
        } else {
            j++;
        }
    }

    return stringBuilder.toString();
}

---

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