Examples of org.modeshape.sequencer.ddl.DdlTokenStream

org.modeshape.sequencer.ddl.DdlTokenStream
A TokenStream implementation designed around requirements for tokenizing and parsing DDL statements.
Because of the complexity of DDL, it was necessary to extend {@link TokenStream} in order to override the basic tokenizer totokenize the in-line comments prefixed with "--". In addition, because there is not a default ddl command (or statement) terminator, an override method was added to {@link TokenStream} to allow re-tokenizing the initial tokens to re-type thetokens, remove tokens, or any other operation to simplify parsing.

In this case, both reserved words (or key words) and statement start phrases can be registered prior to the {@link TokenStream}'s start() method. Any resulting tokens that match the registered string values will be re-typed to identify them as key words (DdlTokenizer.KEYWORD) or statement start phrases (DdlTokenizer.STATEMENT_KEY).

    public void shouldParseFLOAT() {
        printTest("shouldParseFLOAT()");
        String typeString = getDataTypeString(DataTypes.DTYPE_FLOAT);
        String content = typeString;


        DdlTokenStream tokens = getTokens(content);


        DataType dType = parser.parse(tokens);


        Assert.assertNotNull("DataType was NOT found for Type = " + typeString, dType);
        Assert.assertEquals("Wrong DataType found", typeString, dType.getName());

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    public void shouldParseREAL() {
        printTest("shouldParseREAL()");
        String typeString = getDataTypeString(DataTypes.DTYPE_REAL);
        String content = typeString;


        DdlTokenStream tokens = getTokens(content);


        DataType dType = parser.parse(tokens);


        Assert.assertNotNull("DataType was NOT found for Type = " + typeString, dType);
        Assert.assertEquals("Wrong DataType found", typeString, dType.getName());

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    public void shouldParseDOUBLE_PRECISION() {
        printTest("shouldParseDOUBLE_PRECISION()");
        String typeString = getDataTypeString(DataTypes.DTYPE_DOUBLE_PRECISION);
        String content = typeString;


        DdlTokenStream tokens = getTokens(content);


        DataType dType = parser.parse(tokens);


        Assert.assertNotNull("DataType was NOT found for Type = " + typeString, dType);
        Assert.assertEquals("Wrong DataType found", typeString, dType.getName());

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    public void shouldParseDATE() {
        printTest("shouldParseDATE()");
        String typeString = getDataTypeString(DataTypes.DTYPE_DATE);
        String content = typeString;


        DdlTokenStream tokens = getTokens(content);


        DataType dType = parser.parse(tokens);


        Assert.assertNotNull("DataType was NOT found for Type = " + typeString, dType);
        Assert.assertEquals("Wrong DataType found", typeString, dType.getName());

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    public void shouldParseTIME() {
        printTest("shouldParseTIME()");
        String typeString = getDataTypeString(DataTypes.DTYPE_TIME);
        String content = typeString;


        DdlTokenStream tokens = getTokens(content);


        DataType dType = parser.parse(tokens);


        Assert.assertNotNull("DataType was NOT found for Type = " + typeString, dType);
        Assert.assertEquals("Wrong DataType found", typeString, dType.getName());

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    public void shouldParseTIMESTAMP() {
        printTest("shouldParseTIMESTAMP()");
        String typeString = getDataTypeString(DataTypes.DTYPE_TIMESTAMP);
        String content = typeString;


        DdlTokenStream tokens = getTokens(content);


        DataType dType = parser.parse(tokens);


        Assert.assertNotNull("DataType was NOT found for Type = " + typeString, dType);
        Assert.assertEquals("Wrong DataType found", typeString, dType.getName());

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    public void beforeEach() {
        parser = new DataTypeParser();
    }


    private DdlTokenStream getTokens( String content ) {
        DdlTokenStream tokens = new DdlTokenStream(content, DdlTokenStream.ddlTokenizer(false), false);


        tokens.start();


        return tokens;
    }

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        Object actualValue = node.getProperty(name);
        assertThat(actualValue, is(expectedValue));
    }


    protected DdlTokenStream getTokens( final String content ) {
        final DdlTokenStream tokens = new DdlTokenStream(content, DdlTokenStream.ddlTokenizer(false), false);
        tokens.start();
        return tokens;
    }

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    protected void parseColumns( DdlTokenStream tokens,
                                 AstNode tableNode,
                                 boolean isAlterTable ) throws ParsingException {
        String tableElementString = getTableElementsString(tokens, false);


        DdlTokenStream localTokens = new DdlTokenStream(tableElementString, DdlTokenStream.ddlTokenizer(false), false);


        localTokens.start();


        StringBuilder unusedTokensSB = new StringBuilder();


        do {
            if (isColumnDefinitionStart(localTokens)) {
                parseColumnDefinition(localTokens, tableNode, isAlterTable);
            } else {
                // THIS IS AN ERROR. NOTHING FOUND.
                // NEED TO absorb tokens
                unusedTokensSB.append(SPACE).append(localTokens.consume());
            }
        } while (localTokens.canConsume(COMMA));


        if (unusedTokensSB.length() > 0) {
            String msg = DdlSequencerI18n.unusedTokensParsingColumnDefinition.text(tableNode.getName());
            DdlParserProblem problem = new DdlParserProblem(Problems.WARNING, getCurrentMarkedPosition(), msg);
            problem.setUnusedSource(unusedTokensSB.toString());

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        assert tokens != null;
        assert tableNode != null;


        String tableElementString = getTableElementsString(tokens, false);


        DdlTokenStream localTokens = new DdlTokenStream(tableElementString, DdlTokenStream.ddlTokenizer(false), false);


        localTokens.start();


        StringBuilder unusedTokensSB = new StringBuilder();


        do {
            if (isColumnDefinitionStart(localTokens)) {
                parseColumnDefinition(localTokens, tableNode, isAlterTable);
            } else {
                // THIS IS AN ERROR. NOTHING FOUND.
                // NEED TO absorb tokens
                unusedTokensSB.append(SPACE).append(localTokens.consume());
            }
        } while (localTokens.canConsume(COMMA));


        if (unusedTokensSB.length() > 0) {
            String msg = DdlSequencerI18n.unusedTokensParsingColumnDefinition.text(tableNode.getName());
            DdlParserProblem problem = new DdlParserProblem(Problems.WARNING, getCurrentMarkedPosition(), msg);
            problem.setUnusedSource(unusedTokensSB.toString());

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