792f606a64
Contains the cql3 grammer and supporting classes, which will be converted one by one. From commit bf599fb5b062cbcc652da78b7d699e7a01b949ad.
821 lines
35 KiB
Java
821 lines
35 KiB
Java
/*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.apache.cassandra.cql3;
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import java.nio.ByteBuffer;
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import java.util.*;
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import com.google.common.base.Predicate;
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import com.google.common.collect.Iterators;
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import static com.google.common.collect.Lists.newArrayList;
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import org.apache.cassandra.config.ColumnDefinition;
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import org.apache.cassandra.db.*;
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import org.apache.cassandra.db.composites.CellName;
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import org.apache.cassandra.db.composites.CellNameType;
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import org.apache.cassandra.db.composites.Composite;
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import org.apache.cassandra.db.filter.ColumnSlice;
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import org.apache.cassandra.db.marshal.*;
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import org.apache.cassandra.exceptions.InvalidRequestException;
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import org.apache.cassandra.transport.Server;
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import org.apache.cassandra.utils.ByteBufferUtil;
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/**
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* A CQL3 condition on the value of a column or collection element. For example, "UPDATE .. IF a = 0".
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*/
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public class ColumnCondition
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{
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public final ColumnDefinition column;
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// For collection, when testing the equality of a specific element, null otherwise.
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private final Term collectionElement;
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private final Term value; // a single value or a marker for a list of IN values
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private final List<Term> inValues;
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public final Operator operator;
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private ColumnCondition(ColumnDefinition column, Term collectionElement, Term value, List<Term> inValues, Operator op)
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{
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this.column = column;
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this.collectionElement = collectionElement;
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this.value = value;
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this.inValues = inValues;
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this.operator = op;
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if (operator != Operator.IN)
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assert this.inValues == null;
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}
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public static ColumnCondition condition(ColumnDefinition column, Term value, Operator op)
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{
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return new ColumnCondition(column, null, value, null, op);
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}
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public static ColumnCondition condition(ColumnDefinition column, Term collectionElement, Term value, Operator op)
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{
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return new ColumnCondition(column, collectionElement, value, null, op);
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}
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public static ColumnCondition inCondition(ColumnDefinition column, List<Term> inValues)
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{
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return new ColumnCondition(column, null, null, inValues, Operator.IN);
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}
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public static ColumnCondition inCondition(ColumnDefinition column, Term collectionElement, List<Term> inValues)
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{
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return new ColumnCondition(column, collectionElement, null, inValues, Operator.IN);
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}
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public static ColumnCondition inCondition(ColumnDefinition column, Term inMarker)
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{
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return new ColumnCondition(column, null, inMarker, null, Operator.IN);
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}
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public static ColumnCondition inCondition(ColumnDefinition column, Term collectionElement, Term inMarker)
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{
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return new ColumnCondition(column, collectionElement, inMarker, null, Operator.IN);
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}
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public boolean usesFunction(String ksName, String functionName)
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{
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if (collectionElement != null && collectionElement.usesFunction(ksName, functionName))
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return true;
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if (value != null && value.usesFunction(ksName, functionName))
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return true;
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if (inValues != null)
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for (Term value : inValues)
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if (value != null && value.usesFunction(ksName, functionName))
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return true;
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return false;
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}
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/**
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* Collects the column specification for the bind variables of this operation.
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*
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* @param boundNames the list of column specification where to collect the
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* bind variables of this term in.
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*/
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public void collectMarkerSpecification(VariableSpecifications boundNames)
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{
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if (collectionElement != null)
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collectionElement.collectMarkerSpecification(boundNames);
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if ((operator == Operator.IN) && inValues != null)
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{
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for (Term value : inValues)
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value.collectMarkerSpecification(boundNames);
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}
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else
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{
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value.collectMarkerSpecification(boundNames);
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}
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}
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public ColumnCondition.Bound bind(QueryOptions options) throws InvalidRequestException
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{
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boolean isInCondition = operator == Operator.IN;
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if (column.type instanceof CollectionType)
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{
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if (collectionElement == null)
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return isInCondition ? new CollectionInBound(this, options) : new CollectionBound(this, options);
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else
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return isInCondition ? new ElementAccessInBound(this, options) : new ElementAccessBound(this, options);
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}
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return isInCondition ? new SimpleInBound(this, options) : new SimpleBound(this, options);
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}
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public static abstract class Bound
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{
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public final ColumnDefinition column;
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public final Operator operator;
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protected Bound(ColumnDefinition column, Operator operator)
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{
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this.column = column;
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this.operator = operator;
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}
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/**
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* Validates whether this condition applies to {@code current}.
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*/
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public abstract boolean appliesTo(Composite rowPrefix, ColumnFamily current, long now) throws InvalidRequestException;
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public ByteBuffer getCollectionElementValue()
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{
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return null;
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}
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protected boolean isSatisfiedByValue(ByteBuffer value, Cell c, AbstractType<?> type, Operator operator, long now) throws InvalidRequestException
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{
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ByteBuffer columnValue = (c == null || !c.isLive(now)) ? null : c.value();
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return compareWithOperator(operator, type, value, columnValue);
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}
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/** Returns true if the operator is satisfied (i.e. "value operator otherValue == true"), false otherwise. */
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protected boolean compareWithOperator(Operator operator, AbstractType<?> type, ByteBuffer value, ByteBuffer otherValue) throws InvalidRequestException
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{
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if (value == null)
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{
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switch (operator)
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{
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case EQ:
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return otherValue == null;
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case NEQ:
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return otherValue != null;
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default:
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throw new InvalidRequestException(String.format("Invalid comparison with null for operator \"%s\"", operator));
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}
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}
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else if (otherValue == null)
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{
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// the condition value is not null, so only NEQ can return true
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return operator == Operator.NEQ;
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}
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int comparison = type.compare(otherValue, value);
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switch (operator)
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{
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case EQ:
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return comparison == 0;
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case LT:
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return comparison < 0;
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case LTE:
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return comparison <= 0;
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case GT:
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return comparison > 0;
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case GTE:
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return comparison >= 0;
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case NEQ:
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return comparison != 0;
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default:
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// we shouldn't get IN, CONTAINS, or CONTAINS KEY here
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throw new AssertionError();
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}
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}
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protected Iterator<Cell> collectionColumns(CellName collection, ColumnFamily cf, final long now)
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{
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// We are testing for collection equality, so we need to have the expected values *and* only those.
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ColumnSlice[] collectionSlice = new ColumnSlice[]{ collection.slice() };
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// Filter live columns, this makes things simpler afterwards
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return Iterators.filter(cf.iterator(collectionSlice), new Predicate<Cell>()
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{
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public boolean apply(Cell c)
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{
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// we only care about live columns
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return c.isLive(now);
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}
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});
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}
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}
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/**
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* A condition on a single non-collection column. This does not support IN operators (see SimpleInBound).
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*/
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static class SimpleBound extends Bound
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{
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public final ByteBuffer value;
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private SimpleBound(ColumnCondition condition, QueryOptions options) throws InvalidRequestException
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{
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super(condition.column, condition.operator);
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assert !(column.type instanceof CollectionType) && condition.collectionElement == null;
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assert condition.operator != Operator.IN;
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this.value = condition.value.bindAndGet(options);
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}
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public boolean appliesTo(Composite rowPrefix, ColumnFamily current, long now) throws InvalidRequestException
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{
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CellName name = current.metadata().comparator.create(rowPrefix, column);
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return isSatisfiedByValue(value, current.getColumn(name), column.type, operator, now);
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}
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}
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/**
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* An IN condition on a single non-collection column.
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*/
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static class SimpleInBound extends Bound
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{
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public final List<ByteBuffer> inValues;
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private SimpleInBound(ColumnCondition condition, QueryOptions options) throws InvalidRequestException
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{
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super(condition.column, condition.operator);
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assert !(column.type instanceof CollectionType) && condition.collectionElement == null;
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assert condition.operator == Operator.IN;
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if (condition.inValues == null)
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this.inValues = ((Lists.Marker) condition.value).bind(options).getElements();
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else
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{
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this.inValues = new ArrayList<>(condition.inValues.size());
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for (Term value : condition.inValues)
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this.inValues.add(value.bindAndGet(options));
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}
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}
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public boolean appliesTo(Composite rowPrefix, ColumnFamily current, long now) throws InvalidRequestException
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{
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CellName name = current.metadata().comparator.create(rowPrefix, column);
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for (ByteBuffer value : inValues)
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{
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if (isSatisfiedByValue(value, current.getColumn(name), column.type, Operator.EQ, now))
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return true;
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}
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return false;
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}
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}
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/** A condition on an element of a collection column. IN operators are not supported here, see ElementAccessInBound. */
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static class ElementAccessBound extends Bound
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{
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public final ByteBuffer collectionElement;
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public final ByteBuffer value;
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private ElementAccessBound(ColumnCondition condition, QueryOptions options) throws InvalidRequestException
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{
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super(condition.column, condition.operator);
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assert column.type instanceof CollectionType && condition.collectionElement != null;
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assert condition.operator != Operator.IN;
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this.collectionElement = condition.collectionElement.bindAndGet(options);
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this.value = condition.value.bindAndGet(options);
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}
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public boolean appliesTo(Composite rowPrefix, ColumnFamily current, final long now) throws InvalidRequestException
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{
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if (collectionElement == null)
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throw new InvalidRequestException("Invalid null value for " + (column.type instanceof MapType ? "map" : "list") + " element access");
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if (column.type instanceof MapType)
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{
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MapType mapType = (MapType) column.type;
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if (column.type.isMultiCell())
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{
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Cell cell = current.getColumn(current.metadata().comparator.create(rowPrefix, column, collectionElement));
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return isSatisfiedByValue(value, cell, mapType.getValuesType(), operator, now);
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}
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else
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{
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Cell cell = current.getColumn(current.metadata().comparator.create(rowPrefix, column));
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ByteBuffer mapElementValue = cell.isLive(now) ? mapType.getSerializer().getSerializedValue(cell.value(), collectionElement, mapType.getKeysType())
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: null;
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return compareWithOperator(operator, mapType.getValuesType(), value, mapElementValue);
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}
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}
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// sets don't have element access, so it's a list
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ListType listType = (ListType) column.type;
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if (column.type.isMultiCell())
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{
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ByteBuffer columnValue = getListItem(
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collectionColumns(current.metadata().comparator.create(rowPrefix, column), current, now),
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getListIndex(collectionElement));
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return compareWithOperator(operator, listType.getElementsType(), value, columnValue);
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}
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else
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{
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Cell cell = current.getColumn(current.metadata().comparator.create(rowPrefix, column));
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ByteBuffer listElementValue = cell.isLive(now) ? listType.getSerializer().getElement(cell.value(), getListIndex(collectionElement))
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: null;
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return compareWithOperator(operator, listType.getElementsType(), value, listElementValue);
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}
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}
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static int getListIndex(ByteBuffer collectionElement) throws InvalidRequestException
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{
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int idx = ByteBufferUtil.toInt(collectionElement);
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if (idx < 0)
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throw new InvalidRequestException(String.format("Invalid negative list index %d", idx));
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return idx;
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}
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static ByteBuffer getListItem(Iterator<Cell> iter, int index)
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{
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int adv = Iterators.advance(iter, index);
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if (adv == index && iter.hasNext())
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return iter.next().value();
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else
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return null;
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}
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public ByteBuffer getCollectionElementValue()
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{
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return collectionElement;
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}
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}
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static class ElementAccessInBound extends Bound
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{
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public final ByteBuffer collectionElement;
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public final List<ByteBuffer> inValues;
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private ElementAccessInBound(ColumnCondition condition, QueryOptions options) throws InvalidRequestException
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{
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super(condition.column, condition.operator);
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assert column.type instanceof CollectionType && condition.collectionElement != null;
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this.collectionElement = condition.collectionElement.bindAndGet(options);
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if (condition.inValues == null)
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this.inValues = ((Lists.Marker) condition.value).bind(options).getElements();
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else
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{
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this.inValues = new ArrayList<>(condition.inValues.size());
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for (Term value : condition.inValues)
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this.inValues.add(value.bindAndGet(options));
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}
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}
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public boolean appliesTo(Composite rowPrefix, ColumnFamily current, final long now) throws InvalidRequestException
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{
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if (collectionElement == null)
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throw new InvalidRequestException("Invalid null value for " + (column.type instanceof MapType ? "map" : "list") + " element access");
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CellNameType nameType = current.metadata().comparator;
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if (column.type instanceof MapType)
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{
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MapType mapType = (MapType) column.type;
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AbstractType<?> valueType = mapType.getValuesType();
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if (column.type.isMultiCell())
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{
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CellName name = nameType.create(rowPrefix, column, collectionElement);
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Cell item = current.getColumn(name);
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for (ByteBuffer value : inValues)
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{
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if (isSatisfiedByValue(value, item, valueType, Operator.EQ, now))
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return true;
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}
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return false;
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}
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else
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{
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Cell cell = current.getColumn(nameType.create(rowPrefix, column));
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ByteBuffer mapElementValue = null;
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if (cell != null && cell.isLive(now))
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mapElementValue = mapType.getSerializer().getSerializedValue(cell.value(), collectionElement, mapType.getKeysType());
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for (ByteBuffer value : inValues)
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{
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if (value == null)
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{
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if (mapElementValue == null)
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return true;
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continue;
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}
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if (valueType.compare(value, mapElementValue) == 0)
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return true;
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}
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return false;
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}
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}
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ListType listType = (ListType) column.type;
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AbstractType<?> elementsType = listType.getElementsType();
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if (column.type.isMultiCell())
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{
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ByteBuffer columnValue = ElementAccessBound.getListItem(
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collectionColumns(nameType.create(rowPrefix, column), current, now),
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ElementAccessBound.getListIndex(collectionElement));
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for (ByteBuffer value : inValues)
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{
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if (compareWithOperator(Operator.EQ, elementsType, value, columnValue))
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return true;
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}
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}
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else
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{
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Cell cell = current.getColumn(nameType.create(rowPrefix, column));
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ByteBuffer listElementValue = null;
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if (cell != null && cell.isLive(now))
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listElementValue = listType.getSerializer().getElement(cell.value(), ElementAccessBound.getListIndex(collectionElement));
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for (ByteBuffer value : inValues)
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{
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if (value == null)
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{
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if (listElementValue == null)
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return true;
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continue;
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}
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if (elementsType.compare(value, listElementValue) == 0)
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return true;
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}
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}
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return false;
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}
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}
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/** A condition on an entire collection column. IN operators are not supported here, see CollectionInBound. */
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static class CollectionBound extends Bound
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{
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private final Term.Terminal value;
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private CollectionBound(ColumnCondition condition, QueryOptions options) throws InvalidRequestException
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{
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super(condition.column, condition.operator);
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assert column.type.isCollection() && condition.collectionElement == null;
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assert condition.operator != Operator.IN;
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this.value = condition.value.bind(options);
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}
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public boolean appliesTo(Composite rowPrefix, ColumnFamily current, final long now) throws InvalidRequestException
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{
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CollectionType type = (CollectionType)column.type;
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if (type.isMultiCell())
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{
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Iterator<Cell> iter = collectionColumns(current.metadata().comparator.create(rowPrefix, column), current, now);
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if (value == null)
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{
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if (operator == Operator.EQ)
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return !iter.hasNext();
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else if (operator == Operator.NEQ)
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return iter.hasNext();
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else
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throw new InvalidRequestException(String.format("Invalid comparison with null for operator \"%s\"", operator));
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}
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return valueAppliesTo(type, iter, value, operator);
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}
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// frozen collections
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Cell cell = current.getColumn(current.metadata().comparator.create(rowPrefix, column));
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if (value == null)
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{
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if (operator == Operator.EQ)
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return cell == null || !cell.isLive(now);
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else if (operator == Operator.NEQ)
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return cell != null && cell.isLive(now);
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else
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throw new InvalidRequestException(String.format("Invalid comparison with null for operator \"%s\"", operator));
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}
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// make sure we use v3 serialization format for comparison
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ByteBuffer conditionValue;
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if (type.kind == CollectionType.Kind.LIST)
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conditionValue = ((Lists.Value) value).getWithProtocolVersion(Server.VERSION_3);
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else if (type.kind == CollectionType.Kind.SET)
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conditionValue = ((Sets.Value) value).getWithProtocolVersion(Server.VERSION_3);
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else
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conditionValue = ((Maps.Value) value).getWithProtocolVersion(Server.VERSION_3);
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return compareWithOperator(operator, type, conditionValue, cell.value());
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}
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static boolean valueAppliesTo(CollectionType type, Iterator<Cell> iter, Term.Terminal value, Operator operator)
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{
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if (value == null)
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return !iter.hasNext();
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switch (type.kind)
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{
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case LIST: return listAppliesTo((ListType)type, iter, ((Lists.Value)value).elements, operator);
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|
case SET: return setAppliesTo((SetType)type, iter, ((Sets.Value)value).elements, operator);
|
|
case MAP: return mapAppliesTo((MapType)type, iter, ((Maps.Value)value).map, operator);
|
|
}
|
|
throw new AssertionError();
|
|
}
|
|
|
|
private static boolean setOrListAppliesTo(AbstractType<?> type, Iterator<Cell> iter, Iterator<ByteBuffer> conditionIter, Operator operator, boolean isSet)
|
|
{
|
|
while(iter.hasNext())
|
|
{
|
|
if (!conditionIter.hasNext())
|
|
return (operator == Operator.GT) || (operator == Operator.GTE) || (operator == Operator.NEQ);
|
|
|
|
// for lists we use the cell value; for sets we use the cell name
|
|
ByteBuffer cellValue = isSet? iter.next().name().collectionElement() : iter.next().value();
|
|
int comparison = type.compare(cellValue, conditionIter.next());
|
|
if (comparison != 0)
|
|
return evaluateComparisonWithOperator(comparison, operator);
|
|
}
|
|
|
|
if (conditionIter.hasNext())
|
|
return (operator == Operator.LT) || (operator == Operator.LTE) || (operator == Operator.NEQ);
|
|
|
|
// they're equal
|
|
return operator == Operator.EQ || operator == Operator.LTE || operator == Operator.GTE;
|
|
}
|
|
|
|
private static boolean evaluateComparisonWithOperator(int comparison, Operator operator)
|
|
{
|
|
// called when comparison != 0
|
|
switch (operator)
|
|
{
|
|
case EQ:
|
|
return false;
|
|
case LT:
|
|
case LTE:
|
|
return comparison < 0;
|
|
case GT:
|
|
case GTE:
|
|
return comparison > 0;
|
|
case NEQ:
|
|
return true;
|
|
default:
|
|
throw new AssertionError();
|
|
}
|
|
}
|
|
|
|
static boolean listAppliesTo(ListType type, Iterator<Cell> iter, List<ByteBuffer> elements, Operator operator)
|
|
{
|
|
return setOrListAppliesTo(type.getElementsType(), iter, elements.iterator(), operator, false);
|
|
}
|
|
|
|
static boolean setAppliesTo(SetType type, Iterator<Cell> iter, Set<ByteBuffer> elements, Operator operator)
|
|
{
|
|
ArrayList<ByteBuffer> sortedElements = new ArrayList<>(elements.size());
|
|
sortedElements.addAll(elements);
|
|
Collections.sort(sortedElements, type.getElementsType());
|
|
return setOrListAppliesTo(type.getElementsType(), iter, sortedElements.iterator(), operator, true);
|
|
}
|
|
|
|
static boolean mapAppliesTo(MapType type, Iterator<Cell> iter, Map<ByteBuffer, ByteBuffer> elements, Operator operator)
|
|
{
|
|
Iterator<Map.Entry<ByteBuffer, ByteBuffer>> conditionIter = elements.entrySet().iterator();
|
|
while(iter.hasNext())
|
|
{
|
|
if (!conditionIter.hasNext())
|
|
return (operator == Operator.GT) || (operator == Operator.GTE) || (operator == Operator.NEQ);
|
|
|
|
Map.Entry<ByteBuffer, ByteBuffer> conditionEntry = conditionIter.next();
|
|
Cell c = iter.next();
|
|
|
|
// compare the keys
|
|
int comparison = type.getKeysType().compare(c.name().collectionElement(), conditionEntry.getKey());
|
|
if (comparison != 0)
|
|
return evaluateComparisonWithOperator(comparison, operator);
|
|
|
|
// compare the values
|
|
comparison = type.getValuesType().compare(c.value(), conditionEntry.getValue());
|
|
if (comparison != 0)
|
|
return evaluateComparisonWithOperator(comparison, operator);
|
|
}
|
|
|
|
if (conditionIter.hasNext())
|
|
return (operator == Operator.LT) || (operator == Operator.LTE) || (operator == Operator.NEQ);
|
|
|
|
// they're equal
|
|
return operator == Operator.EQ || operator == Operator.LTE || operator == Operator.GTE;
|
|
}
|
|
}
|
|
|
|
public static class CollectionInBound extends Bound
|
|
{
|
|
private final List<Term.Terminal> inValues;
|
|
|
|
private CollectionInBound(ColumnCondition condition, QueryOptions options) throws InvalidRequestException
|
|
{
|
|
super(condition.column, condition.operator);
|
|
assert column.type instanceof CollectionType && condition.collectionElement == null;
|
|
assert condition.operator == Operator.IN;
|
|
inValues = new ArrayList<>();
|
|
if (condition.inValues == null)
|
|
{
|
|
// We have a list of serialized collections that need to be deserialized for later comparisons
|
|
CollectionType collectionType = (CollectionType) column.type;
|
|
Lists.Marker inValuesMarker = (Lists.Marker) condition.value;
|
|
if (column.type instanceof ListType)
|
|
{
|
|
ListType deserializer = ListType.getInstance(collectionType.valueComparator(), false);
|
|
for (ByteBuffer buffer : inValuesMarker.bind(options).elements)
|
|
{
|
|
if (buffer == null)
|
|
this.inValues.add(null);
|
|
else
|
|
this.inValues.add(Lists.Value.fromSerialized(buffer, deserializer, options.getProtocolVersion()));
|
|
}
|
|
}
|
|
else if (column.type instanceof MapType)
|
|
{
|
|
MapType deserializer = MapType.getInstance(collectionType.nameComparator(), collectionType.valueComparator(), false);
|
|
for (ByteBuffer buffer : inValuesMarker.bind(options).elements)
|
|
{
|
|
if (buffer == null)
|
|
this.inValues.add(null);
|
|
else
|
|
this.inValues.add(Maps.Value.fromSerialized(buffer, deserializer, options.getProtocolVersion()));
|
|
}
|
|
}
|
|
else if (column.type instanceof SetType)
|
|
{
|
|
SetType deserializer = SetType.getInstance(collectionType.valueComparator(), false);
|
|
for (ByteBuffer buffer : inValuesMarker.bind(options).elements)
|
|
{
|
|
if (buffer == null)
|
|
this.inValues.add(null);
|
|
else
|
|
this.inValues.add(Sets.Value.fromSerialized(buffer, deserializer, options.getProtocolVersion()));
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
for (Term value : condition.inValues)
|
|
this.inValues.add(value.bind(options));
|
|
}
|
|
}
|
|
|
|
public boolean appliesTo(Composite rowPrefix, ColumnFamily current, final long now) throws InvalidRequestException
|
|
{
|
|
CollectionType type = (CollectionType)column.type;
|
|
CellName name = current.metadata().comparator.create(rowPrefix, column);
|
|
if (type.isMultiCell())
|
|
{
|
|
// copy iterator contents so that we can properly reuse them for each comparison with an IN value
|
|
List<Cell> cells = newArrayList(collectionColumns(name, current, now));
|
|
for (Term.Terminal value : inValues)
|
|
{
|
|
if (CollectionBound.valueAppliesTo(type, cells.iterator(), value, Operator.EQ))
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
else
|
|
{
|
|
Cell cell = current.getColumn(name);
|
|
for (Term.Terminal value : inValues)
|
|
{
|
|
if (value == null)
|
|
{
|
|
if (cell == null || !cell.isLive(now))
|
|
return true;
|
|
}
|
|
else if (type.compare(((Term.CollectionTerminal)value).getWithProtocolVersion(Server.VERSION_3), cell.value()) == 0)
|
|
{
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
}
|
|
}
|
|
|
|
public static class Raw
|
|
{
|
|
private final Term.Raw value;
|
|
private final List<Term.Raw> inValues;
|
|
private final AbstractMarker.INRaw inMarker;
|
|
|
|
// Can be null, only used with the syntax "IF m[e] = ..." (in which case it's 'e')
|
|
private final Term.Raw collectionElement;
|
|
|
|
private final Operator operator;
|
|
|
|
private Raw(Term.Raw value, List<Term.Raw> inValues, AbstractMarker.INRaw inMarker, Term.Raw collectionElement, Operator op)
|
|
{
|
|
this.value = value;
|
|
this.inValues = inValues;
|
|
this.inMarker = inMarker;
|
|
this.collectionElement = collectionElement;
|
|
this.operator = op;
|
|
}
|
|
|
|
/** A condition on a column. For example: "IF col = 'foo'" */
|
|
public static Raw simpleCondition(Term.Raw value, Operator op)
|
|
{
|
|
return new Raw(value, null, null, null, op);
|
|
}
|
|
|
|
/** An IN condition on a column. For example: "IF col IN ('foo', 'bar', ...)" */
|
|
public static Raw simpleInCondition(List<Term.Raw> inValues)
|
|
{
|
|
return new Raw(null, inValues, null, null, Operator.IN);
|
|
}
|
|
|
|
/** An IN condition on a column with a single marker. For example: "IF col IN ?" */
|
|
public static Raw simpleInCondition(AbstractMarker.INRaw inMarker)
|
|
{
|
|
return new Raw(null, null, inMarker, null, Operator.IN);
|
|
}
|
|
|
|
/** A condition on a collection element. For example: "IF col['key'] = 'foo'" */
|
|
public static Raw collectionCondition(Term.Raw value, Term.Raw collectionElement, Operator op)
|
|
{
|
|
return new Raw(value, null, null, collectionElement, op);
|
|
}
|
|
|
|
/** An IN condition on a collection element. For example: "IF col['key'] IN ('foo', 'bar', ...)" */
|
|
public static Raw collectionInCondition(Term.Raw collectionElement, List<Term.Raw> inValues)
|
|
{
|
|
return new Raw(null, inValues, null, collectionElement, Operator.IN);
|
|
}
|
|
|
|
/** An IN condition on a collection element with a single marker. For example: "IF col['key'] IN ?" */
|
|
public static Raw collectionInCondition(Term.Raw collectionElement, AbstractMarker.INRaw inMarker)
|
|
{
|
|
return new Raw(null, null, inMarker, collectionElement, Operator.IN);
|
|
}
|
|
|
|
public ColumnCondition prepare(String keyspace, ColumnDefinition receiver) throws InvalidRequestException
|
|
{
|
|
if (receiver.type instanceof CounterColumnType)
|
|
throw new InvalidRequestException("Conditions on counters are not supported");
|
|
|
|
if (collectionElement == null)
|
|
{
|
|
if (operator == Operator.IN)
|
|
{
|
|
if (inValues == null)
|
|
return ColumnCondition.inCondition(receiver, inMarker.prepare(keyspace, receiver));
|
|
List<Term> terms = new ArrayList<>(inValues.size());
|
|
for (Term.Raw value : inValues)
|
|
terms.add(value.prepare(keyspace, receiver));
|
|
return ColumnCondition.inCondition(receiver, terms);
|
|
}
|
|
else
|
|
{
|
|
return ColumnCondition.condition(receiver, value.prepare(keyspace, receiver), operator);
|
|
}
|
|
}
|
|
|
|
if (!(receiver.type.isCollection()))
|
|
throw new InvalidRequestException(String.format("Invalid element access syntax for non-collection column %s", receiver.name));
|
|
|
|
ColumnSpecification elementSpec, valueSpec;
|
|
switch ((((CollectionType)receiver.type).kind))
|
|
{
|
|
case LIST:
|
|
elementSpec = Lists.indexSpecOf(receiver);
|
|
valueSpec = Lists.valueSpecOf(receiver);
|
|
break;
|
|
case MAP:
|
|
elementSpec = Maps.keySpecOf(receiver);
|
|
valueSpec = Maps.valueSpecOf(receiver);
|
|
break;
|
|
case SET:
|
|
throw new InvalidRequestException(String.format("Invalid element access syntax for set column %s", receiver.name));
|
|
default:
|
|
throw new AssertionError();
|
|
}
|
|
if (operator == Operator.IN)
|
|
{
|
|
if (inValues == null)
|
|
return ColumnCondition.inCondition(receiver, collectionElement.prepare(keyspace, elementSpec), inMarker.prepare(keyspace, valueSpec));
|
|
List<Term> terms = new ArrayList<>(inValues.size());
|
|
for (Term.Raw value : inValues)
|
|
terms.add(value.prepare(keyspace, valueSpec));
|
|
return ColumnCondition.inCondition(receiver, collectionElement.prepare(keyspace, elementSpec), terms);
|
|
}
|
|
else
|
|
{
|
|
return ColumnCondition.condition(receiver, collectionElement.prepare(keyspace, elementSpec), value.prepare(keyspace, valueSpec), operator);
|
|
}
|
|
}
|
|
}
|
|
}
|