Import cql3 package and sub-packages
Contains the cql3 grammer and supporting classes, which will be converted one by one. From commit bf599fb5b062cbcc652da78b7d699e7a01b949ad.
This commit is contained in:
Avi Kivity
662
cql3/QueryProcessor.java
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662
cql3/QueryProcessor.java
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@@ -0,0 +1,662 @@
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/*
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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.ArrayList;
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import java.util.Collections;
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import java.util.Iterator;
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import java.util.List;
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import java.util.concurrent.*;
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import java.util.concurrent.atomic.AtomicInteger;
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import com.google.common.primitives.Ints;
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import com.googlecode.concurrentlinkedhashmap.ConcurrentLinkedHashMap;
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import com.googlecode.concurrentlinkedhashmap.EntryWeigher;
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import com.googlecode.concurrentlinkedhashmap.EvictionListener;
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import org.antlr.runtime.*;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import org.apache.cassandra.concurrent.ScheduledExecutors;
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import org.apache.cassandra.cql3.functions.*;
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import org.apache.cassandra.cql3.statements.*;
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import org.apache.cassandra.db.*;
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import org.apache.cassandra.db.composites.CType;
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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.marshal.AbstractType;
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import org.apache.cassandra.exceptions.InvalidRequestException;
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import org.apache.cassandra.exceptions.RequestExecutionException;
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import org.apache.cassandra.exceptions.RequestValidationException;
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import org.apache.cassandra.exceptions.SyntaxException;
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import org.apache.cassandra.metrics.CQLMetrics;
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import org.apache.cassandra.service.ClientState;
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import org.apache.cassandra.service.IMigrationListener;
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import org.apache.cassandra.service.MigrationManager;
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import org.apache.cassandra.service.QueryState;
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import org.apache.cassandra.service.pager.QueryPager;
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import org.apache.cassandra.service.pager.QueryPagers;
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import org.apache.cassandra.thrift.ThriftClientState;
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import org.apache.cassandra.tracing.Tracing;
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import org.apache.cassandra.transport.messages.ResultMessage;
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import org.apache.cassandra.utils.FBUtilities;
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import org.apache.cassandra.utils.MD5Digest;
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import org.apache.cassandra.utils.SemanticVersion;
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import org.github.jamm.MemoryMeter;
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public class QueryProcessor implements QueryHandler
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{
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public static final SemanticVersion CQL_VERSION = new SemanticVersion("3.2.0");
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public static final QueryProcessor instance = new QueryProcessor();
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private static final Logger logger = LoggerFactory.getLogger(QueryProcessor.class);
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private static final MemoryMeter meter = new MemoryMeter().withGuessing(MemoryMeter.Guess.FALLBACK_BEST).ignoreKnownSingletons();
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private static final long MAX_CACHE_PREPARED_MEMORY = Runtime.getRuntime().maxMemory() / 256;
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private static EntryWeigher<MD5Digest, ParsedStatement.Prepared> cqlMemoryUsageWeigher = new EntryWeigher<MD5Digest, ParsedStatement.Prepared>()
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{
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@Override
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public int weightOf(MD5Digest key, ParsedStatement.Prepared value)
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{
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return Ints.checkedCast(measure(key) + measure(value.statement) + measure(value.boundNames));
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}
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};
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private static EntryWeigher<Integer, ParsedStatement.Prepared> thriftMemoryUsageWeigher = new EntryWeigher<Integer, ParsedStatement.Prepared>()
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{
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@Override
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public int weightOf(Integer key, ParsedStatement.Prepared value)
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{
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return Ints.checkedCast(measure(key) + measure(value.statement) + measure(value.boundNames));
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}
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};
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private static final ConcurrentLinkedHashMap<MD5Digest, ParsedStatement.Prepared> preparedStatements;
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private static final ConcurrentLinkedHashMap<Integer, ParsedStatement.Prepared> thriftPreparedStatements;
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// A map for prepared statements used internally (which we don't want to mix with user statement, in particular we don't
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// bother with expiration on those.
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private static final ConcurrentMap<String, ParsedStatement.Prepared> internalStatements = new ConcurrentHashMap<>();
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// Direct calls to processStatement do not increment the preparedStatementsExecuted/regularStatementsExecuted
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// counters. Callers of processStatement are responsible for correctly notifying metrics
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public static final CQLMetrics metrics = new CQLMetrics();
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private static final AtomicInteger lastMinuteEvictionsCount = new AtomicInteger(0);
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static
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{
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preparedStatements = new ConcurrentLinkedHashMap.Builder<MD5Digest, ParsedStatement.Prepared>()
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.maximumWeightedCapacity(MAX_CACHE_PREPARED_MEMORY)
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.weigher(cqlMemoryUsageWeigher)
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.listener(new EvictionListener<MD5Digest, ParsedStatement.Prepared>()
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{
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public void onEviction(MD5Digest md5Digest, ParsedStatement.Prepared prepared)
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{
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metrics.preparedStatementsEvicted.inc();
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lastMinuteEvictionsCount.incrementAndGet();
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}
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}).build();
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thriftPreparedStatements = new ConcurrentLinkedHashMap.Builder<Integer, ParsedStatement.Prepared>()
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.maximumWeightedCapacity(MAX_CACHE_PREPARED_MEMORY)
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.weigher(thriftMemoryUsageWeigher)
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.listener(new EvictionListener<Integer, ParsedStatement.Prepared>()
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{
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public void onEviction(Integer integer, ParsedStatement.Prepared prepared)
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{
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metrics.preparedStatementsEvicted.inc();
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lastMinuteEvictionsCount.incrementAndGet();
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}
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})
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.build();
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ScheduledExecutors.scheduledTasks.scheduleAtFixedRate(new Runnable()
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{
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public void run()
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{
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long count = lastMinuteEvictionsCount.getAndSet(0);
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if (count > 0)
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logger.info("{} prepared statements discarded in the last minute because cache limit reached ({} bytes)",
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count,
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MAX_CACHE_PREPARED_MEMORY);
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}
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}, 1, 1, TimeUnit.MINUTES);
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}
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public static int preparedStatementsCount()
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{
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return preparedStatements.size() + thriftPreparedStatements.size();
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}
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// Work around initialization dependency
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private static enum InternalStateInstance
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{
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INSTANCE;
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private final QueryState queryState;
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InternalStateInstance()
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{
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ClientState state = ClientState.forInternalCalls();
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try
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{
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state.setKeyspace(SystemKeyspace.NAME);
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}
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catch (InvalidRequestException e)
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{
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throw new RuntimeException();
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}
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this.queryState = new QueryState(state);
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}
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}
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private static QueryState internalQueryState()
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{
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return InternalStateInstance.INSTANCE.queryState;
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}
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private QueryProcessor()
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{
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MigrationManager.instance.register(new MigrationSubscriber());
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}
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public ParsedStatement.Prepared getPrepared(MD5Digest id)
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{
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return preparedStatements.get(id);
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}
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public ParsedStatement.Prepared getPreparedForThrift(Integer id)
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{
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return thriftPreparedStatements.get(id);
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}
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public static void validateKey(ByteBuffer key) throws InvalidRequestException
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{
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if (key == null || key.remaining() == 0)
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{
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throw new InvalidRequestException("Key may not be empty");
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}
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// check that key can be handled by FBUtilities.writeShortByteArray
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if (key.remaining() > FBUtilities.MAX_UNSIGNED_SHORT)
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{
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throw new InvalidRequestException("Key length of " + key.remaining() +
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" is longer than maximum of " + FBUtilities.MAX_UNSIGNED_SHORT);
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}
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}
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public static void validateCellNames(Iterable<CellName> cellNames, CellNameType type) throws InvalidRequestException
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{
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for (CellName name : cellNames)
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validateCellName(name, type);
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}
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public static void validateCellName(CellName name, CellNameType type) throws InvalidRequestException
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{
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validateComposite(name, type);
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if (name.isEmpty())
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throw new InvalidRequestException("Invalid empty value for clustering column of COMPACT TABLE");
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}
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public static void validateComposite(Composite name, CType type) throws InvalidRequestException
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{
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long serializedSize = type.serializer().serializedSize(name, TypeSizes.NATIVE);
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if (serializedSize > Cell.MAX_NAME_LENGTH)
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throw new InvalidRequestException(String.format("The sum of all clustering columns is too long (%s > %s)",
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serializedSize,
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Cell.MAX_NAME_LENGTH));
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}
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public ResultMessage processStatement(CQLStatement statement, QueryState queryState, QueryOptions options)
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throws RequestExecutionException, RequestValidationException
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{
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logger.trace("Process {} @CL.{}", statement, options.getConsistency());
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ClientState clientState = queryState.getClientState();
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statement.checkAccess(clientState);
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statement.validate(clientState);
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ResultMessage result = statement.execute(queryState, options);
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return result == null ? new ResultMessage.Void() : result;
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}
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public static ResultMessage process(String queryString, ConsistencyLevel cl, QueryState queryState)
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throws RequestExecutionException, RequestValidationException
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{
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return instance.process(queryString, queryState, QueryOptions.forInternalCalls(cl, Collections.<ByteBuffer>emptyList()));
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}
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public ResultMessage process(String queryString, QueryState queryState, QueryOptions options)
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throws RequestExecutionException, RequestValidationException
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{
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ParsedStatement.Prepared p = getStatement(queryString, queryState.getClientState());
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options.prepare(p.boundNames);
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CQLStatement prepared = p.statement;
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if (prepared.getBoundTerms() != options.getValues().size())
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throw new InvalidRequestException("Invalid amount of bind variables");
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if (!queryState.getClientState().isInternal)
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metrics.regularStatementsExecuted.inc();
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return processStatement(prepared, queryState, options);
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}
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public static ParsedStatement.Prepared parseStatement(String queryStr, QueryState queryState) throws RequestValidationException
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{
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return getStatement(queryStr, queryState.getClientState());
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}
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public static UntypedResultSet process(String query, ConsistencyLevel cl) throws RequestExecutionException
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{
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try
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{
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ResultMessage result = instance.process(query, QueryState.forInternalCalls(), QueryOptions.forInternalCalls(cl, Collections.<ByteBuffer>emptyList()));
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if (result instanceof ResultMessage.Rows)
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return UntypedResultSet.create(((ResultMessage.Rows)result).result);
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else
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return null;
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}
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catch (RequestValidationException e)
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{
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throw new RuntimeException(e);
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}
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}
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private static QueryOptions makeInternalOptions(ParsedStatement.Prepared prepared, Object[] values)
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{
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if (prepared.boundNames.size() != values.length)
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throw new IllegalArgumentException(String.format("Invalid number of values. Expecting %d but got %d", prepared.boundNames.size(), values.length));
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List<ByteBuffer> boundValues = new ArrayList<ByteBuffer>(values.length);
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for (int i = 0; i < values.length; i++)
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{
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Object value = values[i];
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AbstractType type = prepared.boundNames.get(i).type;
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boundValues.add(value instanceof ByteBuffer || value == null ? (ByteBuffer)value : type.decompose(value));
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}
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return QueryOptions.forInternalCalls(boundValues);
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}
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private static ParsedStatement.Prepared prepareInternal(String query) throws RequestValidationException
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{
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ParsedStatement.Prepared prepared = internalStatements.get(query);
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if (prepared != null)
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return prepared;
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// Note: if 2 threads prepare the same query, we'll live so don't bother synchronizing
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prepared = parseStatement(query, internalQueryState());
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prepared.statement.validate(internalQueryState().getClientState());
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internalStatements.putIfAbsent(query, prepared);
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return prepared;
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}
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public static UntypedResultSet executeInternal(String query, Object... values)
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{
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try
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{
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ParsedStatement.Prepared prepared = prepareInternal(query);
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ResultMessage result = prepared.statement.executeInternal(internalQueryState(), makeInternalOptions(prepared, values));
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if (result instanceof ResultMessage.Rows)
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return UntypedResultSet.create(((ResultMessage.Rows)result).result);
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else
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return null;
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}
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catch (RequestExecutionException e)
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{
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throw new RuntimeException(e);
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}
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catch (RequestValidationException e)
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{
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throw new RuntimeException("Error validating " + query, e);
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}
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}
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public static UntypedResultSet executeInternalWithPaging(String query, int pageSize, Object... values)
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{
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try
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{
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ParsedStatement.Prepared prepared = prepareInternal(query);
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if (!(prepared.statement instanceof SelectStatement))
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throw new IllegalArgumentException("Only SELECTs can be paged");
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SelectStatement select = (SelectStatement)prepared.statement;
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QueryPager pager = QueryPagers.localPager(select.getPageableCommand(makeInternalOptions(prepared, values)));
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return UntypedResultSet.create(select, pager, pageSize);
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}
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catch (RequestValidationException e)
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{
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throw new RuntimeException("Error validating query" + e);
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}
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}
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/**
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* Same than executeInternal, but to use for queries we know are only executed once so that the
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* created statement object is not cached.
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*/
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public static UntypedResultSet executeOnceInternal(String query, Object... values)
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{
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try
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{
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ParsedStatement.Prepared prepared = parseStatement(query, internalQueryState());
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prepared.statement.validate(internalQueryState().getClientState());
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ResultMessage result = prepared.statement.executeInternal(internalQueryState(), makeInternalOptions(prepared, values));
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if (result instanceof ResultMessage.Rows)
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return UntypedResultSet.create(((ResultMessage.Rows)result).result);
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else
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return null;
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}
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catch (RequestExecutionException e)
|
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{
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throw new RuntimeException(e);
|
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}
|
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catch (RequestValidationException e)
|
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{
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throw new RuntimeException("Error validating query " + query, e);
|
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}
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}
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public static UntypedResultSet resultify(String query, Row row)
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{
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return resultify(query, Collections.singletonList(row));
|
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}
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public static UntypedResultSet resultify(String query, List<Row> rows)
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||||
{
|
||||
try
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{
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SelectStatement ss = (SelectStatement) getStatement(query, null).statement;
|
||||
ResultSet cqlRows = ss.process(rows);
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return UntypedResultSet.create(cqlRows);
|
||||
}
|
||||
catch (RequestValidationException e)
|
||||
{
|
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throw new AssertionError(e);
|
||||
}
|
||||
}
|
||||
|
||||
public ResultMessage.Prepared prepare(String queryString, QueryState queryState)
|
||||
throws RequestValidationException
|
||||
{
|
||||
ClientState cState = queryState.getClientState();
|
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return prepare(queryString, cState, cState instanceof ThriftClientState);
|
||||
}
|
||||
|
||||
public static ResultMessage.Prepared prepare(String queryString, ClientState clientState, boolean forThrift)
|
||||
throws RequestValidationException
|
||||
{
|
||||
ResultMessage.Prepared existing = getStoredPreparedStatement(queryString, clientState.getRawKeyspace(), forThrift);
|
||||
if (existing != null)
|
||||
return existing;
|
||||
|
||||
ParsedStatement.Prepared prepared = getStatement(queryString, clientState);
|
||||
int boundTerms = prepared.statement.getBoundTerms();
|
||||
if (boundTerms > FBUtilities.MAX_UNSIGNED_SHORT)
|
||||
throw new InvalidRequestException(String.format("Too many markers(?). %d markers exceed the allowed maximum of %d", boundTerms, FBUtilities.MAX_UNSIGNED_SHORT));
|
||||
assert boundTerms == prepared.boundNames.size();
|
||||
|
||||
return storePreparedStatement(queryString, clientState.getRawKeyspace(), prepared, forThrift);
|
||||
}
|
||||
|
||||
private static MD5Digest computeId(String queryString, String keyspace)
|
||||
{
|
||||
String toHash = keyspace == null ? queryString : keyspace + queryString;
|
||||
return MD5Digest.compute(toHash);
|
||||
}
|
||||
|
||||
private static Integer computeThriftId(String queryString, String keyspace)
|
||||
{
|
||||
String toHash = keyspace == null ? queryString : keyspace + queryString;
|
||||
return toHash.hashCode();
|
||||
}
|
||||
|
||||
private static ResultMessage.Prepared getStoredPreparedStatement(String queryString, String keyspace, boolean forThrift)
|
||||
throws InvalidRequestException
|
||||
{
|
||||
if (forThrift)
|
||||
{
|
||||
Integer thriftStatementId = computeThriftId(queryString, keyspace);
|
||||
ParsedStatement.Prepared existing = thriftPreparedStatements.get(thriftStatementId);
|
||||
return existing == null ? null : ResultMessage.Prepared.forThrift(thriftStatementId, existing.boundNames);
|
||||
}
|
||||
else
|
||||
{
|
||||
MD5Digest statementId = computeId(queryString, keyspace);
|
||||
ParsedStatement.Prepared existing = preparedStatements.get(statementId);
|
||||
return existing == null ? null : new ResultMessage.Prepared(statementId, existing);
|
||||
}
|
||||
}
|
||||
|
||||
private static ResultMessage.Prepared storePreparedStatement(String queryString, String keyspace, ParsedStatement.Prepared prepared, boolean forThrift)
|
||||
throws InvalidRequestException
|
||||
{
|
||||
// Concatenate the current keyspace so we don't mix prepared statements between keyspace (#5352).
|
||||
// (if the keyspace is null, queryString has to have a fully-qualified keyspace so it's fine.
|
||||
long statementSize = measure(prepared.statement);
|
||||
// don't execute the statement if it's bigger than the allowed threshold
|
||||
if (statementSize > MAX_CACHE_PREPARED_MEMORY)
|
||||
throw new InvalidRequestException(String.format("Prepared statement of size %d bytes is larger than allowed maximum of %d bytes.",
|
||||
statementSize,
|
||||
MAX_CACHE_PREPARED_MEMORY));
|
||||
if (forThrift)
|
||||
{
|
||||
Integer statementId = computeThriftId(queryString, keyspace);
|
||||
thriftPreparedStatements.put(statementId, prepared);
|
||||
return ResultMessage.Prepared.forThrift(statementId, prepared.boundNames);
|
||||
}
|
||||
else
|
||||
{
|
||||
MD5Digest statementId = computeId(queryString, keyspace);
|
||||
preparedStatements.put(statementId, prepared);
|
||||
return new ResultMessage.Prepared(statementId, prepared);
|
||||
}
|
||||
}
|
||||
|
||||
public ResultMessage processPrepared(CQLStatement statement, QueryState queryState, QueryOptions options)
|
||||
throws RequestExecutionException, RequestValidationException
|
||||
{
|
||||
List<ByteBuffer> variables = options.getValues();
|
||||
// Check to see if there are any bound variables to verify
|
||||
if (!(variables.isEmpty() && (statement.getBoundTerms() == 0)))
|
||||
{
|
||||
if (variables.size() != statement.getBoundTerms())
|
||||
throw new InvalidRequestException(String.format("there were %d markers(?) in CQL but %d bound variables",
|
||||
statement.getBoundTerms(),
|
||||
variables.size()));
|
||||
|
||||
// at this point there is a match in count between markers and variables that is non-zero
|
||||
|
||||
if (logger.isTraceEnabled())
|
||||
for (int i = 0; i < variables.size(); i++)
|
||||
logger.trace("[{}] '{}'", i+1, variables.get(i));
|
||||
}
|
||||
|
||||
metrics.preparedStatementsExecuted.inc();
|
||||
return processStatement(statement, queryState, options);
|
||||
}
|
||||
|
||||
public ResultMessage processBatch(BatchStatement batch, QueryState queryState, BatchQueryOptions options)
|
||||
throws RequestExecutionException, RequestValidationException
|
||||
{
|
||||
ClientState clientState = queryState.getClientState();
|
||||
batch.checkAccess(clientState);
|
||||
batch.validate();
|
||||
batch.validate(clientState);
|
||||
return batch.execute(queryState, options);
|
||||
}
|
||||
|
||||
public static ParsedStatement.Prepared getStatement(String queryStr, ClientState clientState)
|
||||
throws RequestValidationException
|
||||
{
|
||||
Tracing.trace("Parsing {}", queryStr);
|
||||
ParsedStatement statement = parseStatement(queryStr);
|
||||
|
||||
// Set keyspace for statement that require login
|
||||
if (statement instanceof CFStatement)
|
||||
((CFStatement)statement).prepareKeyspace(clientState);
|
||||
|
||||
Tracing.trace("Preparing statement");
|
||||
return statement.prepare();
|
||||
}
|
||||
|
||||
public static ParsedStatement parseStatement(String queryStr) throws SyntaxException
|
||||
{
|
||||
try
|
||||
{
|
||||
// Lexer and parser
|
||||
ErrorCollector errorCollector = new ErrorCollector(queryStr);
|
||||
CharStream stream = new ANTLRStringStream(queryStr);
|
||||
CqlLexer lexer = new CqlLexer(stream);
|
||||
lexer.addErrorListener(errorCollector);
|
||||
|
||||
TokenStream tokenStream = new CommonTokenStream(lexer);
|
||||
CqlParser parser = new CqlParser(tokenStream);
|
||||
parser.addErrorListener(errorCollector);
|
||||
|
||||
// Parse the query string to a statement instance
|
||||
ParsedStatement statement = parser.query();
|
||||
|
||||
// The errorCollector has queue up any errors that the lexer and parser may have encountered
|
||||
// along the way, if necessary, we turn the last error into exceptions here.
|
||||
errorCollector.throwFirstSyntaxError();
|
||||
|
||||
return statement;
|
||||
}
|
||||
catch (RuntimeException re)
|
||||
{
|
||||
logger.error(String.format("The statement: [%s] could not be parsed.", queryStr), re);
|
||||
throw new SyntaxException(String.format("Failed parsing statement: [%s] reason: %s %s",
|
||||
queryStr,
|
||||
re.getClass().getSimpleName(),
|
||||
re.getMessage()));
|
||||
}
|
||||
catch (RecognitionException e)
|
||||
{
|
||||
throw new SyntaxException("Invalid or malformed CQL query string: " + e.getMessage());
|
||||
}
|
||||
}
|
||||
|
||||
private static long measure(Object key)
|
||||
{
|
||||
return meter.measureDeep(key);
|
||||
}
|
||||
|
||||
private static class MigrationSubscriber implements IMigrationListener
|
||||
{
|
||||
private void removeInvalidPreparedStatements(String ksName, String cfName)
|
||||
{
|
||||
removeInvalidPreparedStatements(preparedStatements.values().iterator(), ksName, cfName);
|
||||
removeInvalidPreparedStatements(thriftPreparedStatements.values().iterator(), ksName, cfName);
|
||||
}
|
||||
|
||||
private void removeInvalidPreparedStatements(Iterator<ParsedStatement.Prepared> iterator, String ksName, String cfName)
|
||||
{
|
||||
while (iterator.hasNext())
|
||||
{
|
||||
if (shouldInvalidate(ksName, cfName, iterator.next().statement))
|
||||
iterator.remove();
|
||||
}
|
||||
}
|
||||
|
||||
private boolean shouldInvalidate(String ksName, String cfName, CQLStatement statement)
|
||||
{
|
||||
String statementKsName;
|
||||
String statementCfName;
|
||||
|
||||
if (statement instanceof ModificationStatement)
|
||||
{
|
||||
ModificationStatement modificationStatement = ((ModificationStatement) statement);
|
||||
statementKsName = modificationStatement.keyspace();
|
||||
statementCfName = modificationStatement.columnFamily();
|
||||
}
|
||||
else if (statement instanceof SelectStatement)
|
||||
{
|
||||
SelectStatement selectStatement = ((SelectStatement) statement);
|
||||
statementKsName = selectStatement.keyspace();
|
||||
statementCfName = selectStatement.columnFamily();
|
||||
}
|
||||
else
|
||||
{
|
||||
return false;
|
||||
}
|
||||
|
||||
return ksName.equals(statementKsName) && (cfName == null || cfName.equals(statementCfName));
|
||||
}
|
||||
|
||||
public void onCreateKeyspace(String ksName) { }
|
||||
public void onCreateColumnFamily(String ksName, String cfName) { }
|
||||
public void onCreateUserType(String ksName, String typeName) { }
|
||||
public void onCreateFunction(String ksName, String functionName) {
|
||||
if (Functions.getOverloadCount(new FunctionName(ksName, functionName)) > 1)
|
||||
{
|
||||
// in case there are other overloads, we have to remove all overloads since argument type
|
||||
// matching may change (due to type casting)
|
||||
removeInvalidPreparedStatementsForFunction(preparedStatements.values().iterator(), ksName, functionName);
|
||||
removeInvalidPreparedStatementsForFunction(thriftPreparedStatements.values().iterator(), ksName, functionName);
|
||||
}
|
||||
}
|
||||
public void onCreateAggregate(String ksName, String aggregateName) {
|
||||
if (Functions.getOverloadCount(new FunctionName(ksName, aggregateName)) > 1)
|
||||
{
|
||||
// in case there are other overloads, we have to remove all overloads since argument type
|
||||
// matching may change (due to type casting)
|
||||
removeInvalidPreparedStatementsForFunction(preparedStatements.values().iterator(), ksName, aggregateName);
|
||||
removeInvalidPreparedStatementsForFunction(thriftPreparedStatements.values().iterator(), ksName, aggregateName);
|
||||
}
|
||||
}
|
||||
|
||||
public void onUpdateKeyspace(String ksName) { }
|
||||
public void onUpdateColumnFamily(String ksName, String cfName) { }
|
||||
public void onUpdateUserType(String ksName, String typeName) { }
|
||||
public void onUpdateFunction(String ksName, String functionName) { }
|
||||
public void onUpdateAggregate(String ksName, String aggregateName) { }
|
||||
|
||||
public void onDropKeyspace(String ksName)
|
||||
{
|
||||
removeInvalidPreparedStatements(ksName, null);
|
||||
}
|
||||
|
||||
public void onDropColumnFamily(String ksName, String cfName)
|
||||
{
|
||||
removeInvalidPreparedStatements(ksName, cfName);
|
||||
}
|
||||
|
||||
public void onDropUserType(String ksName, String typeName) { }
|
||||
public void onDropFunction(String ksName, String functionName) {
|
||||
removeInvalidPreparedStatementsForFunction(preparedStatements.values().iterator(), ksName, functionName);
|
||||
removeInvalidPreparedStatementsForFunction(thriftPreparedStatements.values().iterator(), ksName, functionName);
|
||||
}
|
||||
public void onDropAggregate(String ksName, String aggregateName)
|
||||
{
|
||||
removeInvalidPreparedStatementsForFunction(preparedStatements.values().iterator(), ksName, aggregateName);
|
||||
removeInvalidPreparedStatementsForFunction(thriftPreparedStatements.values().iterator(), ksName, aggregateName);
|
||||
}
|
||||
|
||||
private void removeInvalidPreparedStatementsForFunction(Iterator<ParsedStatement.Prepared> iterator,
|
||||
String ksName, String functionName)
|
||||
{
|
||||
while (iterator.hasNext())
|
||||
if (iterator.next().statement.usesFunction(ksName, functionName))
|
||||
iterator.remove();
|
||||
}
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user