Examples of com.ctc.wstx.util.TextBuffer

com.ctc.wstx.util.TextBuffer
TextBuffer is a class similar to {@link StringBuilder}, with following differences:
- TextBuffer uses segments character arrays, to avoid having to do additional array copies when array is not big enough. This means that only reallocating that is necessary is done only once -- if and when caller wants to access contents in a linear array (char[], String).
- TextBuffer is not synchronized.
Over time more and more cruft has accumulated here, mostly to support efficient access to collected text. Since access is easiest to do efficiently using callbacks, this class now needs to known interfaces of SAX classes and validators.
Notes about usage: for debugging purposes, it's suggested to use {@link #toString} method, as opposed to{@link #contentsAsArray} or {@link #contentsAsString}. Internally resulting code paths may or may not be different, WRT caching. @author Tatu Saloranta

        String wrong = checkKeyword(c, XmlConsts.XML_DECL_KW_VERSION);
        if (wrong != null) {
            throwParseError(ErrorConsts.ERR_UNEXP_KEYWORD, wrong, XmlConsts.XML_DECL_KW_VERSION);
        }
        c = skipEquals(XmlConsts.XML_DECL_KW_VERSION, SUFFIX_IN_XML_DECL);
        TextBuffer tb = mTextBuffer;
        tb.resetInitialized();
        parseQuoted(XmlConsts.XML_DECL_KW_VERSION, c, tb);
        
        if (tb.equalsString(XmlConsts.XML_V_10_STR)) {
            mDocXmlVersion = XmlConsts.XML_V_10;
            mXml11 = false;
        } else if (tb.equalsString(XmlConsts.XML_V_11_STR)) {
            mDocXmlVersion = XmlConsts.XML_V_11;
            mXml11 = true;
        } else {
            mDocXmlVersion = XmlConsts.XML_V_UNKNOWN;
            mXml11 = false;
            throwParseError("Unexpected xml version '"+tb.toString()+"'; expected '"+XmlConsts.XML_V_10_STR+"' or '"+XmlConsts.XML_V_11_STR+"'");
        }
        
        c = getNextInCurrAfterWS(SUFFIX_IN_XML_DECL);
        
        if (c != '?') { // '?' signals end...
            if (c == 'e') { // encoding
                wrong = checkKeyword(c, XmlConsts.XML_DECL_KW_ENCODING);
                if (wrong != null) {
                    throwParseError(ErrorConsts.ERR_UNEXP_KEYWORD, wrong, XmlConsts.XML_DECL_KW_ENCODING);
                }
                c = skipEquals(XmlConsts.XML_DECL_KW_ENCODING, SUFFIX_IN_XML_DECL);
                tb.resetWithEmpty();
                parseQuoted(XmlConsts.XML_DECL_KW_ENCODING, c, tb);
                mDocXmlEncoding = tb.toString();
                /* should we verify encoding at this point? let's not, for now;
                 * since it's for information only, first declaration from
                 * bootstrapper is used for the whole stream.
                 */
                c = getNextInCurrAfterWS(SUFFIX_IN_XML_DECL);
            } else if (c != 's') {
                throwUnexpectedChar(c, " in xml declaration; expected either 'encoding' or 'standalone' pseudo-attribute");
            }
            
            // Standalone?
            if (c == 's') {
                wrong = checkKeyword(c, XmlConsts.XML_DECL_KW_STANDALONE);
                if (wrong != null) {
                    throwParseError(ErrorConsts.ERR_UNEXP_KEYWORD, wrong, XmlConsts.XML_DECL_KW_STANDALONE);
                }
                c = skipEquals(XmlConsts.XML_DECL_KW_STANDALONE, SUFFIX_IN_XML_DECL);
                tb.resetWithEmpty();
                parseQuoted(XmlConsts.XML_DECL_KW_STANDALONE, c, tb);
                if (tb.equalsString(XmlConsts.XML_SA_YES)) {
                    mDocStandalone = DOC_STANDALONE_YES;
                } else if (tb.equalsString(XmlConsts.XML_SA_NO)) {
                    mDocStandalone = DOC_STANDALONE_NO;
                } else {
                    throwParseError("Unexpected xml '"+XmlConsts.XML_DECL_KW_STANDALONE+"' pseudo-attribute value '"
                                    +tb.toString()+"'; expected '"+XmlConsts.XML_SA_YES+"' or '"+
                                    XmlConsts.XML_SA_NO+"'");
               }
                c = getNextInCurrAfterWS(SUFFIX_IN_XML_DECL);
            }
        }

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                         */
                        //if (mVldContent < XMLValidator.CONTENT_ALLOW_WS || mElementStack.reallyValidating()) {
                        reportInvalidContent(CHARACTERS);
                    }
                }
                TextBuffer tb = mTextBuffer;
                tb.resetInitialized();
                if (ch <= 0xFFFF) {
                    tb.append((char) ch);
                } else {
                    ch -= 0x10000;
                    tb.append((char) ((ch >> 10)  + 0xD800));
                    tb.append((char) ((ch & 0x3FF)  + 0xDC00));
                }
                mTokenState = TOKEN_STARTED;
                return CHARACTERS;
            }

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            // Ok, let's add char to output:
            outBuf[outPtr++] = c;


            // Need more room?
            if (outPtr >= outBuf.length) {
                TextBuffer tb = mTextBuffer;
                // Perhaps we have now enough to return?
                if (!mCfgCoalesceText) {
                    tb.setCurrentLength(outBuf.length);
                    if (tb.size() >= shortestSegment) {
                        mInputPtr = inputPtr;
                        return false;
                    }
                }
                // If not, need more buffer space:
                outBuf = tb.finishCurrentSegment();
                outPtr = 0;
            }
        }
        // never gets here
    }

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            // Ok, let's add char to output:
            outBuf[outPtr++] = c;


            // Need more room?
            if (outPtr >= outBuf.length) {
                TextBuffer tb = mTextBuffer;
                // Perhaps we have now enough to return?
                tb.setCurrentLength(outBuf.length);
                if (tb.size() >= shortestSegment) {
                    mInputPtr = inputPtr;
                    return false;
                }
                // If not, need more buffer space:
                outBuf = tb.finishCurrentSegment();
                outPtr = 0;
            }
        }


        mTextBuffer.setCurrentLength(outPtr);

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{
    public void testBasic()
    {
        String INPUT = "Whatever input text doesn't really matter but should have some content "
            +"so as not to be too short";
        TextBuffer tb = TextBuffer.createTemporaryBuffer();
        final char[] ch = new char[1];
        for (int i = 0, len = INPUT.length(); i < len; ++i) {
            if ((i & 1) != 0) {
                ch[0] = INPUT.charAt(i);
                tb.append(ch, 0, 1);
            } else {
                tb.append(INPUT.substring(i, i+1));
            }
        }


        assertEquals(INPUT, tb.toString());
        assertEquals(INPUT, tb.contentsAsString());
        assertFalse(tb.endsWith("shor"));
        assertTrue(tb.endsWith("so as not to be too short"));
        assertFalse(tb.isAllWhitespace());


        assertTrue(tb.equalsString(INPUT));


        /*
        tb.clear();


        assertEquals("", tb.toString());

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        String wrong = checkKeyword(c, XmlConsts.XML_DECL_KW_VERSION);
        if (wrong != null) {
            throwParseError(ErrorConsts.ERR_UNEXP_KEYWORD, wrong, XmlConsts.XML_DECL_KW_VERSION);
        }
        c = skipEquals(XmlConsts.XML_DECL_KW_VERSION, SUFFIX_IN_XML_DECL);
        TextBuffer tb = mTextBuffer;
        tb.resetInitialized();
        parseQuoted(XmlConsts.XML_DECL_KW_VERSION, c, tb);
        
        if (tb.equalsString(XmlConsts.XML_V_10_STR)) {
            mDocXmlVersion = XmlConsts.XML_V_10;
            mXml11 = false;
        } else if (tb.equalsString(XmlConsts.XML_V_11_STR)) {
            mDocXmlVersion = XmlConsts.XML_V_11;
            mXml11 = true;
        } else {
            mDocXmlVersion = XmlConsts.XML_V_UNKNOWN;
            mXml11 = false;
            throwParseError("Unexpected xml version '"+tb.toString()+"'; expected '"+XmlConsts.XML_V_10_STR+"' or '"+XmlConsts.XML_V_11_STR+"'");
        }
        
        c = getNextInCurrAfterWS(SUFFIX_IN_XML_DECL);
        
        if (c != '?') { // '?' signals end...
            if (c == 'e') { // encoding
                wrong = checkKeyword(c, XmlConsts.XML_DECL_KW_ENCODING);
                if (wrong != null) {
                    throwParseError(ErrorConsts.ERR_UNEXP_KEYWORD, wrong, XmlConsts.XML_DECL_KW_ENCODING);
                }
                c = skipEquals(XmlConsts.XML_DECL_KW_ENCODING, SUFFIX_IN_XML_DECL);
                tb.resetWithEmpty();
                parseQuoted(XmlConsts.XML_DECL_KW_ENCODING, c, tb);
                mDocXmlEncoding = tb.toString();
                /* should we verify encoding at this point? let's not, for now;
                 * since it's for information only, first declaration from
                 * bootstrapper is used for the whole stream.
                 */
                c = getNextInCurrAfterWS(SUFFIX_IN_XML_DECL);
            } else if (c != 's') {
                throwUnexpectedChar(c, " in xml declaration; expected either 'encoding' or 'standalone' pseudo-attribute");
            }
            
            // Standalone?
            if (c == 's') {
                wrong = checkKeyword(c, XmlConsts.XML_DECL_KW_STANDALONE);
                if (wrong != null) {
                    throwParseError(ErrorConsts.ERR_UNEXP_KEYWORD, wrong, XmlConsts.XML_DECL_KW_STANDALONE);
                }
                c = skipEquals(XmlConsts.XML_DECL_KW_STANDALONE, SUFFIX_IN_XML_DECL);
                tb.resetWithEmpty();
                parseQuoted(XmlConsts.XML_DECL_KW_STANDALONE, c, tb);
                if (tb.equalsString(XmlConsts.XML_SA_YES)) {
                    mDocStandalone = DOC_STANDALONE_YES;
                } else if (tb.equalsString(XmlConsts.XML_SA_NO)) {
                    mDocStandalone = DOC_STANDALONE_NO;
                } else {
                    throwParseError("Unexpected xml '"+XmlConsts.XML_DECL_KW_STANDALONE+"' pseudo-attribute value '"
                                    +tb.toString()+"'; expected '"+XmlConsts.XML_SA_YES+"' or '"+
                                    XmlConsts.XML_SA_NO+"'");
               }
                c = getNextInCurrAfterWS(SUFFIX_IN_XML_DECL);
            }
        }

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                            reportInvalidContent(CHARACTERS);
                        }
                    }
                }


                TextBuffer tb = mTextBuffer;
                tb.resetInitialized();
                tb.append(c);
                mTokenState = TOKEN_STARTED;
                return CHARACTERS;
            }


            /* Nope; was a general entity... in auto-mode, it's now been

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            // Ok, let's add char to output:
            outBuf[outPtr++] = c;


            // Need more room?
            if (outPtr >= outBuf.length) {
                TextBuffer tb = mTextBuffer;
                // Perhaps we have now enough to return?
                if (!mCfgCoalesceText) {
                    tb.setCurrentLength(outBuf.length);
                    if (tb.size() >= mShortestTextSegment) {
                        mInputPtr = inputPtr;
                        return false;
                    }
                }
                // If not, need more buffer space:
                outBuf = tb.finishCurrentSegment();
                outPtr = 0;
            }
        }
        // never gets here
    }

View Full Code Here

            // Ok, let's add char to output:
            outBuf[outPtr++] = c;


            // Need more room?
            if (outPtr >= outBuf.length) {
                TextBuffer tb = mTextBuffer;
                // Perhaps we have now enough to return?
                tb.setCurrentLength(outBuf.length);
                if (tb.size() >= shortestSegment) {
                    mInputPtr = inputPtr;
                    return false;
                }
                // If not, need more buffer space:
                outBuf = tb.finishCurrentSegment();
                outPtr = 0;
            }
        }


        mTextBuffer.setCurrentLength(outPtr);

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{
    public void testBasic()
    {
        String INPUT = "Whatever input text doesn't really matter but should have some content "
            +"so as not to be too short";
        TextBuffer tb = TextBuffer.createTemporaryBuffer(50);
        final char[] ch = new char[1];
        for (int i = 0, len = INPUT.length(); i < len; ++i) {
            if ((i & 1) != 0) {
                ch[0] = INPUT.charAt(i);
                tb.append(ch, 0, 1);
            } else {
                tb.append(INPUT.substring(i, i+1));
            }
        }


        assertEquals(INPUT, tb.toString());
        assertEquals(INPUT, tb.contentsAsString());
        assertFalse(tb.endsWith("shor"));
        assertTrue(tb.endsWith("so as not to be too short"));
        assertFalse(tb.isAllWhitespace());


        assertTrue(tb.equalsString(INPUT));


        /*
        tb.clear();


        assertEquals("", tb.toString());

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