Examples of javolution.text.CharArray

javolution.text.CharArray
This class represents a {@link CharSequence}backed up by a char array. Instances of this class are typically used/reused to provide CharSequence views over existing character buffers.

Instances of this classes have the following properties:
- They support equality or lexical comparison with any CharSequence (e.g. String).
- They have the same hashcode than String and can be used to retrieve data from maps for which the keys are String instances.
- They support fast conversions to primitive types (e.g. {@link #toBoolean() Boolean}, {@link #toInt int}).
@author Jean-Marie Dautelle @version 5.3, January 10, 2007

                uri, _namespacesCount[_nesting]);
    }


    CharArray getPrefix(CharSequence uri, int count) {
        for (int i = count; --i >= 0;) {
            CharArray prefix = _prefixes[i];
            CharArray namespace = _namespaces[i];
            if (namespace.equals(uri)) { // Find matching uri.
                // Checks that the prefix has not been overwriten after being set.
                boolean isPrefixOverwritten = false;
                for (int j = i + 1; j < count; j++) {
                    if (prefix.equals(_prefixes[j])) {
                        isPrefixOverwritten = true;

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    void setPrefix(final CharSequence prefix, CharSequence uri,
            boolean isWritten) {
        final int index = _namespacesCount[_nesting];
        _prefixesWritten[index] = isWritten;
        final int prefixLength = prefix.length();
        CharArray prefixTmp = _prefixesTmp[index];
        if ((prefixTmp == null) || (prefixTmp.array().length < prefixLength)) {
            _prefixesTmp[index] = new CharArray().setArray(
                    new char[prefixLength + 32], 0, 0);
            prefixTmp = _prefixesTmp[index];
        }
        for (int i = 0; i < prefixLength; i++) {
            prefixTmp.array()[i] = prefix.charAt(i);
        }
        prefixTmp.setArray(prefixTmp.array(), 0, prefixLength);


        final int uriLength = uri.length();
        CharArray namespaceTmp = _namespacesTmp[index];
        if ((namespaceTmp == null) || (namespaceTmp.array().length < uriLength)) {
            _namespacesTmp[index] = new CharArray().setArray(
                    new char[uriLength + 32], 0, 0);
            namespaceTmp = _namespacesTmp[index];
        }
        for (int i = 0; i < uriLength; i++) {
            namespaceTmp.array()[i] = uri.charAt(i);
        }
        namespaceTmp.setArray(namespaceTmp.array(), 0, uriLength);


        // Sets the prefix using CharArray instances.
        setPrefix(prefixTmp, namespaceTmp);
    }

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        return CDATA;
    }
    @Override
    public CharArray getURI(int index) {
        if ((index < 0) || (index >= length)) return null;
        CharArray prefix = attributes.get(index).prefix;
        return (prefix == null) ? EMPTY : namespaces.getNamespaceURI(prefix);
    }

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     *
     * @param  in the input source with unknown encoding.
     */
    public void setInput(InputStream in) throws XMLStreamException {
        setInput(in, detectEncoding(in));
        CharArray prologEncoding = getCharacterEncodingScheme();


        // Checks if necessary to change the reader.
        if ((prologEncoding != null) && !prologEncoding.equals(_encoding)
                && !(isUTF8(prologEncoding) && isUTF8(_encoding))) {
            // Changes reader (keep characters already read).
            int startOffset = _readCount;
            reset();
            _startOffset = startOffset;
            setInput(in, prologEncoding.toString());
        }
    }

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                _isEmpty = false;
                return _eventType = END_ELEMENT;
            }
        } else if (_eventType == END_ELEMENT) {
            _namespaces.pop();
            CharArray startElem = _elemStack[_depth--];
            _start = _index = startElem.offset();
            while (_seqs[--_seqsIndex] != startElem) { // Recycles CharArray instances.
            }
        }
        // Reader loop.
        while (true) {

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            }
        } else { // Prefix.
            final int offset = _attrQName.offset();
            final int length = _attrQName.length();


            CharArray prefix = newSeq(offset, _attrPrefixSep - offset);


            CharArray localName = newSeq(_attrPrefixSep + 1, offset + length
                    - _attrPrefixSep - 1);


            if (isXMLNS(prefix)) { // Namespace association.
                _namespaces.setPrefix(localName, _attrValue);
            } else {

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            _factory.recycle(this);
    }


    // Returns a new character sequence from the pool.
    private CharArray newSeq(int offset, int length) {
        CharArray seq = (_seqsIndex < _seqsCapacity) ? _seqs[_seqsIndex++]
                : newSeq2();
        return seq.setArray(_data, offset, length);
    }

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        //       only when moving to outer nesting level (due to coalescing).
        //       This accumulation may cause resize of the data buffer if
        //       numerous elements at the same nesting level are separated by 
        //       spaces or indentation.
        char[] tmp = new char[_data.length * 2];
        javolution.context.LogContext.info(new CharArray(
                "XMLStreamReaderImpl: Data buffer increased to " + tmp.length));
        System.arraycopy(_data, 0, tmp, 0, _data.length);
        _data = tmp;
    }

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    }


    // Increases statck.
    private void increaseStack() {
        CharArray[] tmp = new CharArray[_elemStack.length * 2];
        javolution.context.LogContext.info(new CharArray(
                "XMLStreamReaderImpl: CharArray stack increased to "
                        + tmp.length));
        System.arraycopy(_elemStack, 0, tmp, 0, _elemStack.length);
        _elemStack = tmp;
    }

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    public CharArray getElementText() throws XMLStreamException {
        // Derived from interface specification code.
        if (getEventType() != XMLStreamConstants.START_ELEMENT) { throw new XMLStreamException(
                "Parser must be on START_ELEMENT to read next text",
                getLocation()); }
        CharArray text = null;
        int eventType = next();
        while (eventType != XMLStreamConstants.END_ELEMENT) {
            if (eventType == XMLStreamConstants.CHARACTERS) {
                if (text == null) {
                    text = getText();
                } else { // Merge (adjacent text, comments and PI are not kept).
                    text.setArray(_data, text.offset(), text.length()
                            + getText().length());
                }
            } else if (eventType == XMLStreamConstants.PROCESSING_INSTRUCTION
                    || eventType == XMLStreamConstants.COMMENT) {
                // Skips (not kept).

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