com.datastax.dse.driver.internal.core.metadata.schema.parsing.DseFunctionParser Maven / Gradle / Ivy
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* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
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package com.datastax.dse.driver.internal.core.metadata.schema.parsing;
import com.datastax.dse.driver.api.core.metadata.schema.DseFunctionMetadata;
import com.datastax.dse.driver.internal.core.metadata.schema.DefaultDseFunctionMetadata;
import com.datastax.oss.driver.api.core.CqlIdentifier;
import com.datastax.oss.driver.api.core.metadata.schema.FunctionMetadata;
import com.datastax.oss.driver.api.core.type.UserDefinedType;
import com.datastax.oss.driver.internal.core.adminrequest.AdminRow;
import com.datastax.oss.driver.internal.core.context.InternalDriverContext;
import com.datastax.oss.driver.internal.core.metadata.schema.parsing.DataTypeParser;
import com.datastax.oss.driver.internal.core.metadata.schema.parsing.FunctionParser;
import java.util.Collections;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;
import net.jcip.annotations.ThreadSafe;
@ThreadSafe
public class DseFunctionParser {
private final FunctionParser functionParser;
public DseFunctionParser(DataTypeParser dataTypeParser, InternalDriverContext context) {
this.functionParser = new FunctionParser(dataTypeParser, context);
}
public DseFunctionMetadata parseFunction(
AdminRow row,
CqlIdentifier keyspaceId,
Map userDefinedTypes) {
FunctionMetadata function = functionParser.parseFunction(row, keyspaceId, userDefinedTypes);
// parse the DSE extended columns
final Boolean deterministic =
row.contains("deterministic") ? row.getBoolean("deterministic") : null;
final Boolean monotonic = row.contains("monotonic") ? row.getBoolean("monotonic") : null;
// stream the list of strings into a list of CqlIdentifiers
final List monotonicOn =
row.contains("monotonic_on")
? row.getListOfString("monotonic_on").stream()
.map(CqlIdentifier::fromInternal)
.collect(Collectors.toList())
: Collections.emptyList();
return new DefaultDseFunctionMetadata(
function.getKeyspace(),
function.getSignature(),
function.getParameterNames(),
function.getBody(),
function.isCalledOnNullInput(),
function.getLanguage(),
function.getReturnType(),
deterministic,
monotonic,
monotonicOn);
}
}