Examples of org.apache.cassandra.db.marshal.AbstractType

org.apache.cassandra.db.marshal.AbstractType
Specifies a Comparator for a specific type of ByteBuffer. Note that empty ByteBuffer are used to represent "start at the beginning" or "stop at the end" arguments to get_slice, so the Comparator should always handle those values even if they normally do not represent a valid ByteBuffer for the type being compared.

                    {
                        throw new ConfigurationException("ColumnSort is no longer an accepted attribute.  Use CompareWith instead.");
                    }


                    // Parse out the column comparator
                    AbstractType comparator = getComparator(columnFamily, "CompareWith");
                    AbstractType subcolumnComparator = null;
                    if (columnType.equals("Super"))
                    {
                        subcolumnComparator = getComparator(columnFamily, "CompareSubcolumnsWith");
                    }
                    else if (XMLUtils.getAttributeValue(columnFamily, "CompareSubcolumnsWith") != null)

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        List<IndexInfo> indexes = new ArrayList<IndexInfo>();
        indexes.add(new IndexInfo(bytes(0L), bytes(5L), 0, 0));
        indexes.add(new IndexInfo(bytes(10L), bytes(15L), 0, 0));
        indexes.add(new IndexInfo(bytes(20L), bytes(25L), 0, 0));


        AbstractType comp = IntegerType.instance;


        assertEquals(0, IndexHelper.indexFor(bytes(-1L), indexes, comp, false, -1));
        assertEquals(0, IndexHelper.indexFor(bytes(5L), indexes, comp, false, -1));
        assertEquals(1, IndexHelper.indexFor(bytes(12L), indexes, comp, false, -1));
        assertEquals(2, IndexHelper.indexFor(bytes(17L), indexes, comp, false, -1));

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                for (int i = 0; i < columnCount; i++)
                {
                    String ksName = globalTablesSpec ? globalKsName : CBUtil.readString(body);
                    String cfName = globalTablesSpec ? globalCfName : CBUtil.readString(body);
                    ColumnIdentifier colName = new ColumnIdentifier(CBUtil.readString(body), true);
                    AbstractType type = DataType.toType(DataType.codec.decodeOne(body));
                    names.add(new ColumnSpecification(ksName, cfName, colName, type));
                }
                return new Metadata(flags, names);
            }

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    private String rangesAsString()
    {
        assert !ranges.isEmpty();
        StringBuilder sb = new StringBuilder();
        AbstractType at = (AbstractType)ranges.comparator();
        assert at != null;
        for (RangeTombstone i : ranges)
        {
            sb.append("[");
            sb.append(at.getString(i.min)).append("-");
            sb.append(at.getString(i.max)).append(", ");
            sb.append(i.data);
            sb.append("]");
        }
        return sb.toString();
    }

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    private String rangesAsString()
    {
        assert !ranges.isEmpty();
        StringBuilder sb = new StringBuilder();
        AbstractType at = (AbstractType)ranges.comparator();
        assert at != null;
        for (RangeTombstone i : ranges)
        {
            sb.append("[");
            sb.append(at.getString(i.min)).append("-");
            sb.append(at.getString(i.max)).append(", ");
            sb.append(i.data);
            sb.append("]");
        }
        return sb.toString();
    }

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    }


    private List<AbstractType> getDefaultMarshallers(CfDef cfDef) throws IOException
    {
        ArrayList<AbstractType> marshallers = new ArrayList<AbstractType>();
        AbstractType comparator;
        AbstractType subcomparator;
        AbstractType default_validator;
        AbstractType key_validator;


        comparator = parseType(cfDef.getComparator_type());
        subcomparator = parseType(cfDef.getSubcomparator_type());
        default_validator = parseType(cfDef.getDefault_validation_class());
        key_validator = parseType(cfDef.getKey_validation_class());

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        Map<ByteBuffer, AbstractType> validators = new HashMap<ByteBuffer, AbstractType>();
        for (ColumnDef cd : cfDef.getColumn_metadata())
        {
            if (cd.getValidation_class() != null && !cd.getValidation_class().isEmpty())
            {
                AbstractType validator = null;
                try
                {
                    validator = TypeParser.parse(cd.getValidation_class());
                    validators.put(cd.name, validator);
                }

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                throw new Exception("Bad scheme.");
            String[] urlParts = location.split("\\?");
            if (urlParts.length > 1)
            {
                Map<String, String> urlQuery = getQueryMap(urlParts[1]);
                AbstractType comparator = BytesType.instance;
                if (urlQuery.containsKey("comparator"))
                    comparator = TypeParser.parse(urlQuery.get("comparator"));
                if (urlQuery.containsKey("slice_start"))
                    slice_start = comparator.fromString(urlQuery.get("slice_start"));
                if (urlQuery.containsKey("slice_end"))
                    slice_end = comparator.fromString(urlQuery.get("slice_end"));
                if (urlQuery.containsKey("reversed"))
                    slice_reverse = Boolean.parseBoolean(urlQuery.get("reversed"));
                if (urlQuery.containsKey("limit"))
                    limit = Integer.parseInt(urlQuery.get("limit"));
            }

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            ResourceFieldSchema idxColSchema = new ResourceFieldSchema();
            idxColSchema.setName("name");
            idxColSchema.setType(getPigType(marshallers.get(0)));


            ResourceFieldSchema valSchema = new ResourceFieldSchema();
            AbstractType validator = validators.get(cdef.name);
            if (validator == null)
                validator = marshallers.get(1);
            valSchema.setName("value");
            valSchema.setType(getPigType(validator));


            innerTupleSchema.setFields(new ResourceFieldSchema[] { idxColSchema, valSchema });
            allSchemaFields.add(innerTupleField);
        }
        // bag at the end for unknown columns
        allSchemaFields.add(bagField);


        // add top-level index elements if needed
        if (usePartitionFilter)
        {
            for (ColumnDef cdef : getIndexes())
            {
                ResourceFieldSchema idxSchema = new ResourceFieldSchema();
                idxSchema.setName("index_" + new String(cdef.getName()));
                AbstractType validator = validators.get(cdef.name);
                if (validator == null)
                    validator = marshallers.get(1);
                idxSchema.setType(getPigType(validator));
                allSchemaFields.add(idxSchema);
            }

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        return !isMarkedForDelete();
    }


    protected void validateName(CFMetaData metadata) throws MarshalException
    {
        AbstractType nameValidator = metadata.cfType == ColumnFamilyType.Super ? metadata.subcolumnComparator : metadata.comparator;
        nameValidator.validate(name());
    }

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