/
QueryTranslator.java
4801 lines (4489 loc) · 259 KB
/
QueryTranslator.java
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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.asterix.app.translator;
import static org.apache.asterix.common.api.IIdentifierMapper.Modifier.PLURAL;
import static org.apache.asterix.common.utils.IdentifierUtil.dataset;
import static org.apache.asterix.common.utils.IdentifierUtil.dataverse;
import static org.apache.asterix.lang.common.statement.CreateFullTextFilterStatement.FIELD_TYPE_STOPWORDS;
import java.io.File;
import java.io.FileInputStream;
import java.io.InputStream;
import java.rmi.RemoteException;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.Date;
import java.util.EnumSet;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Iterator;
import java.util.LinkedHashSet;
import java.util.List;
import java.util.Map;
import java.util.Objects;
import java.util.Optional;
import java.util.Properties;
import java.util.Set;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.locks.ReentrantReadWriteLock;
import java.util.stream.Collectors;
import org.apache.asterix.active.ActivityState;
import org.apache.asterix.active.EntityId;
import org.apache.asterix.active.IActiveEntityEventsListener;
import org.apache.asterix.active.NoRetryPolicyFactory;
import org.apache.asterix.algebra.extension.ExtensionStatement;
import org.apache.asterix.api.common.APIFramework;
import org.apache.asterix.api.http.server.AbstractQueryApiServlet;
import org.apache.asterix.api.http.server.ApiServlet;
import org.apache.asterix.app.active.ActiveEntityEventsListener;
import org.apache.asterix.app.active.ActiveNotificationHandler;
import org.apache.asterix.app.active.FeedEventsListener;
import org.apache.asterix.app.external.ExternalLibraryJobUtils;
import org.apache.asterix.app.result.ExecutionError;
import org.apache.asterix.app.result.ResultHandle;
import org.apache.asterix.app.result.ResultReader;
import org.apache.asterix.app.result.fields.ErrorsPrinter;
import org.apache.asterix.app.result.fields.ResultHandlePrinter;
import org.apache.asterix.app.result.fields.ResultsPrinter;
import org.apache.asterix.app.result.fields.StatusPrinter;
import org.apache.asterix.common.api.IClientRequest;
import org.apache.asterix.common.api.IMetadataLockManager;
import org.apache.asterix.common.api.IRequestTracker;
import org.apache.asterix.common.api.IResponsePrinter;
import org.apache.asterix.common.cluster.IClusterStateManager;
import org.apache.asterix.common.config.DatasetConfig.DatasetType;
import org.apache.asterix.common.config.DatasetConfig.ExternalFilePendingOp;
import org.apache.asterix.common.config.DatasetConfig.IndexType;
import org.apache.asterix.common.config.DatasetConfig.TransactionState;
import org.apache.asterix.common.config.GlobalConfig;
import org.apache.asterix.common.dataflow.ICcApplicationContext;
import org.apache.asterix.common.exceptions.ACIDException;
import org.apache.asterix.common.exceptions.AsterixException;
import org.apache.asterix.common.exceptions.CompilationException;
import org.apache.asterix.common.exceptions.ErrorCode;
import org.apache.asterix.common.exceptions.MetadataException;
import org.apache.asterix.common.exceptions.RuntimeDataException;
import org.apache.asterix.common.exceptions.WarningCollector;
import org.apache.asterix.common.exceptions.WarningUtil;
import org.apache.asterix.common.external.IDataSourceAdapter;
import org.apache.asterix.common.functions.ExternalFunctionLanguage;
import org.apache.asterix.common.functions.FunctionSignature;
import org.apache.asterix.common.metadata.DatasetFullyQualifiedName;
import org.apache.asterix.common.metadata.DataverseName;
import org.apache.asterix.common.metadata.IMetadataLockUtil;
import org.apache.asterix.common.utils.JobUtils;
import org.apache.asterix.common.utils.JobUtils.ProgressState;
import org.apache.asterix.common.utils.StorageConstants;
import org.apache.asterix.compiler.provider.ILangCompilationProvider;
import org.apache.asterix.external.dataset.adapter.AdapterIdentifier;
import org.apache.asterix.external.indexing.ExternalFile;
import org.apache.asterix.external.indexing.IndexingConstants;
import org.apache.asterix.external.operators.FeedIntakeOperatorNodePushable;
import org.apache.asterix.external.util.ExternalDataConstants;
import org.apache.asterix.external.util.ExternalDataUtils;
import org.apache.asterix.lang.common.base.IQueryRewriter;
import org.apache.asterix.lang.common.base.IReturningStatement;
import org.apache.asterix.lang.common.base.IRewriterFactory;
import org.apache.asterix.lang.common.base.IStatementRewriter;
import org.apache.asterix.lang.common.base.Statement;
import org.apache.asterix.lang.common.expression.IndexedTypeExpression;
import org.apache.asterix.lang.common.expression.TypeExpression;
import org.apache.asterix.lang.common.expression.TypeReferenceExpression;
import org.apache.asterix.lang.common.expression.VariableExpr;
import org.apache.asterix.lang.common.statement.AdapterDropStatement;
import org.apache.asterix.lang.common.statement.CompactStatement;
import org.apache.asterix.lang.common.statement.ConnectFeedStatement;
import org.apache.asterix.lang.common.statement.CreateAdapterStatement;
import org.apache.asterix.lang.common.statement.CreateDataverseStatement;
import org.apache.asterix.lang.common.statement.CreateFeedPolicyStatement;
import org.apache.asterix.lang.common.statement.CreateFeedStatement;
import org.apache.asterix.lang.common.statement.CreateFullTextConfigStatement;
import org.apache.asterix.lang.common.statement.CreateFullTextFilterStatement;
import org.apache.asterix.lang.common.statement.CreateFunctionStatement;
import org.apache.asterix.lang.common.statement.CreateIndexStatement;
import org.apache.asterix.lang.common.statement.CreateLibraryStatement;
import org.apache.asterix.lang.common.statement.CreateSynonymStatement;
import org.apache.asterix.lang.common.statement.CreateViewStatement;
import org.apache.asterix.lang.common.statement.DatasetDecl;
import org.apache.asterix.lang.common.statement.DataverseDecl;
import org.apache.asterix.lang.common.statement.DataverseDropStatement;
import org.apache.asterix.lang.common.statement.DeleteStatement;
import org.apache.asterix.lang.common.statement.DisconnectFeedStatement;
import org.apache.asterix.lang.common.statement.DropDatasetStatement;
import org.apache.asterix.lang.common.statement.ExternalDetailsDecl;
import org.apache.asterix.lang.common.statement.FeedDropStatement;
import org.apache.asterix.lang.common.statement.FeedPolicyDropStatement;
import org.apache.asterix.lang.common.statement.FullTextConfigDropStatement;
import org.apache.asterix.lang.common.statement.FullTextFilterDropStatement;
import org.apache.asterix.lang.common.statement.FunctionDecl;
import org.apache.asterix.lang.common.statement.FunctionDropStatement;
import org.apache.asterix.lang.common.statement.IndexDropStatement;
import org.apache.asterix.lang.common.statement.InsertStatement;
import org.apache.asterix.lang.common.statement.InternalDetailsDecl;
import org.apache.asterix.lang.common.statement.LibraryDropStatement;
import org.apache.asterix.lang.common.statement.LoadStatement;
import org.apache.asterix.lang.common.statement.NodeGroupDropStatement;
import org.apache.asterix.lang.common.statement.NodegroupDecl;
import org.apache.asterix.lang.common.statement.Query;
import org.apache.asterix.lang.common.statement.RefreshExternalDatasetStatement;
import org.apache.asterix.lang.common.statement.SetStatement;
import org.apache.asterix.lang.common.statement.StartFeedStatement;
import org.apache.asterix.lang.common.statement.StopFeedStatement;
import org.apache.asterix.lang.common.statement.SynonymDropStatement;
import org.apache.asterix.lang.common.statement.TypeDecl;
import org.apache.asterix.lang.common.statement.TypeDropStatement;
import org.apache.asterix.lang.common.statement.ViewDecl;
import org.apache.asterix.lang.common.statement.ViewDropStatement;
import org.apache.asterix.lang.common.statement.WriteStatement;
import org.apache.asterix.lang.common.struct.Identifier;
import org.apache.asterix.lang.common.struct.VarIdentifier;
import org.apache.asterix.lang.common.util.FunctionUtil;
import org.apache.asterix.lang.common.util.ViewUtil;
import org.apache.asterix.lang.sqlpp.rewrites.SqlppQueryRewriter;
import org.apache.asterix.metadata.IDatasetDetails;
import org.apache.asterix.metadata.MetadataManager;
import org.apache.asterix.metadata.MetadataTransactionContext;
import org.apache.asterix.metadata.bootstrap.MetadataBuiltinEntities;
import org.apache.asterix.metadata.dataset.hints.DatasetHints;
import org.apache.asterix.metadata.dataset.hints.DatasetHints.DatasetNodegroupCardinalityHint;
import org.apache.asterix.metadata.declared.MetadataProvider;
import org.apache.asterix.metadata.entities.BuiltinTypeMap;
import org.apache.asterix.metadata.entities.CompactionPolicy;
import org.apache.asterix.metadata.entities.Dataset;
import org.apache.asterix.metadata.entities.DatasourceAdapter;
import org.apache.asterix.metadata.entities.Datatype;
import org.apache.asterix.metadata.entities.Dataverse;
import org.apache.asterix.metadata.entities.ExternalDatasetDetails;
import org.apache.asterix.metadata.entities.Feed;
import org.apache.asterix.metadata.entities.FeedConnection;
import org.apache.asterix.metadata.entities.FeedPolicyEntity;
import org.apache.asterix.metadata.entities.FullTextConfigMetadataEntity;
import org.apache.asterix.metadata.entities.FullTextFilterMetadataEntity;
import org.apache.asterix.metadata.entities.Function;
import org.apache.asterix.metadata.entities.Index;
import org.apache.asterix.metadata.entities.InternalDatasetDetails;
import org.apache.asterix.metadata.entities.Library;
import org.apache.asterix.metadata.entities.NodeGroup;
import org.apache.asterix.metadata.entities.Synonym;
import org.apache.asterix.metadata.entities.ViewDetails;
import org.apache.asterix.metadata.feeds.FeedMetadataUtil;
import org.apache.asterix.metadata.functions.ExternalFunctionCompilerUtil;
import org.apache.asterix.metadata.lock.ExternalDatasetsRegistry;
import org.apache.asterix.metadata.utils.DatasetUtil;
import org.apache.asterix.metadata.utils.ExternalIndexingOperations;
import org.apache.asterix.metadata.utils.IndexUtil;
import org.apache.asterix.metadata.utils.KeyFieldTypeUtil;
import org.apache.asterix.metadata.utils.MetadataConstants;
import org.apache.asterix.metadata.utils.MetadataUtil;
import org.apache.asterix.metadata.utils.TypeUtil;
import org.apache.asterix.om.base.ANull;
import org.apache.asterix.om.base.IAObject;
import org.apache.asterix.om.types.ARecordType;
import org.apache.asterix.om.types.ATypeTag;
import org.apache.asterix.om.types.BuiltinType;
import org.apache.asterix.om.types.IAType;
import org.apache.asterix.om.types.TypeSignature;
import org.apache.asterix.runtime.fulltext.AbstractFullTextFilterDescriptor;
import org.apache.asterix.runtime.fulltext.FullTextConfigDescriptor;
import org.apache.asterix.runtime.fulltext.IFullTextFilterDescriptor;
import org.apache.asterix.runtime.fulltext.StopwordsFullTextFilterDescriptor;
import org.apache.asterix.transaction.management.service.transaction.DatasetIdFactory;
import org.apache.asterix.translator.AbstractLangTranslator;
import org.apache.asterix.translator.ClientRequest;
import org.apache.asterix.translator.CompiledStatements.CompiledDeleteStatement;
import org.apache.asterix.translator.CompiledStatements.CompiledInsertStatement;
import org.apache.asterix.translator.CompiledStatements.CompiledLoadFromFileStatement;
import org.apache.asterix.translator.CompiledStatements.CompiledUpsertStatement;
import org.apache.asterix.translator.CompiledStatements.ICompiledDmlStatement;
import org.apache.asterix.translator.ExecutionPlans;
import org.apache.asterix.translator.ExecutionPlansHtmlPrintUtil;
import org.apache.asterix.translator.IRequestParameters;
import org.apache.asterix.translator.IStatementExecutor;
import org.apache.asterix.translator.SchedulableClientRequest;
import org.apache.asterix.translator.SessionConfig;
import org.apache.asterix.translator.SessionOutput;
import org.apache.asterix.translator.TypeTranslator;
import org.apache.asterix.translator.util.ValidateUtil;
import org.apache.asterix.utils.DataverseUtil;
import org.apache.asterix.utils.FeedOperations;
import org.apache.asterix.utils.FlushDatasetUtil;
import org.apache.commons.lang3.StringUtils;
import org.apache.commons.lang3.mutable.Mutable;
import org.apache.commons.lang3.mutable.MutableBoolean;
import org.apache.commons.lang3.mutable.MutableObject;
import org.apache.hyracks.algebricks.common.exceptions.AlgebricksException;
import org.apache.hyracks.algebricks.common.utils.Pair;
import org.apache.hyracks.algebricks.common.utils.Triple;
import org.apache.hyracks.algebricks.core.algebra.expressions.AbstractFunctionCallExpression.FunctionKind;
import org.apache.hyracks.algebricks.core.algebra.functions.FunctionIdentifier;
import org.apache.hyracks.algebricks.core.algebra.util.OperatorPropertiesUtil;
import org.apache.hyracks.algebricks.data.IAWriterFactory;
import org.apache.hyracks.algebricks.data.IResultSerializerFactoryProvider;
import org.apache.hyracks.algebricks.runtime.serializer.ResultSerializerFactoryProvider;
import org.apache.hyracks.algebricks.runtime.writers.PrinterBasedWriterFactory;
import org.apache.hyracks.api.client.IClusterInfoCollector;
import org.apache.hyracks.api.client.IHyracksClientConnection;
import org.apache.hyracks.api.exceptions.HyracksDataException;
import org.apache.hyracks.api.exceptions.IWarningCollector;
import org.apache.hyracks.api.exceptions.SourceLocation;
import org.apache.hyracks.api.exceptions.Warning;
import org.apache.hyracks.api.io.FileSplit;
import org.apache.hyracks.api.io.UnmanagedFileSplit;
import org.apache.hyracks.api.job.JobFlag;
import org.apache.hyracks.api.job.JobId;
import org.apache.hyracks.api.job.JobSpecification;
import org.apache.hyracks.api.result.IResultSet;
import org.apache.hyracks.api.result.ResultSetId;
import org.apache.hyracks.control.cc.ClusterControllerService;
import org.apache.hyracks.control.common.controllers.CCConfig;
import org.apache.hyracks.storage.am.common.dataflow.IndexDropOperatorDescriptor.DropOption;
import org.apache.hyracks.storage.am.lsm.common.api.ILSMMergePolicyFactory;
import org.apache.hyracks.storage.am.lsm.invertedindex.fulltext.TokenizerCategory;
import org.apache.hyracks.util.OptionalBoolean;
import org.apache.logging.log4j.Level;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import com.google.common.base.Strings;
import com.google.common.collect.ImmutableList;
/*
* Provides functionality for executing a batch of Query statements (queries included)
* sequentially.
*/
public class QueryTranslator extends AbstractLangTranslator implements IStatementExecutor {
private static final Logger LOGGER = LogManager.getLogger();
public static final boolean IS_DEBUG_MODE = false;// true
protected final List<Statement> statements;
protected final ICcApplicationContext appCtx;
protected final SessionOutput sessionOutput;
protected final SessionConfig sessionConfig;
protected Dataverse activeDataverse;
protected final List<FunctionDecl> declaredFunctions;
protected final ILangCompilationProvider compilationProvider;
protected final APIFramework apiFramework;
protected final IRewriterFactory rewriterFactory;
protected final ExecutorService executorService;
protected final EnumSet<JobFlag> jobFlags = EnumSet.noneOf(JobFlag.class);
protected final IMetadataLockManager lockManager;
protected final IMetadataLockUtil lockUtil;
protected final IResponsePrinter responsePrinter;
protected final WarningCollector warningCollector;
protected final ReentrantReadWriteLock compilationLock;
public QueryTranslator(ICcApplicationContext appCtx, List<Statement> statements, SessionOutput output,
ILangCompilationProvider compilationProvider, ExecutorService executorService,
IResponsePrinter responsePrinter) {
this.appCtx = appCtx;
this.lockManager = appCtx.getMetadataLockManager();
this.lockUtil = appCtx.getMetadataLockUtil();
this.statements = statements;
this.sessionOutput = output;
this.sessionConfig = output.config();
this.compilationProvider = compilationProvider;
declaredFunctions = new ArrayList<>();
apiFramework = new APIFramework(compilationProvider);
rewriterFactory = compilationProvider.getRewriterFactory();
activeDataverse = MetadataBuiltinEntities.DEFAULT_DATAVERSE;
this.executorService = executorService;
this.responsePrinter = responsePrinter;
this.warningCollector = new WarningCollector();
this.compilationLock = appCtx.getCompilationLock();
if (appCtx.getServiceContext().getAppConfig().getBoolean(CCConfig.Option.ENFORCE_FRAME_WRITER_PROTOCOL)) {
this.jobFlags.add(JobFlag.ENFORCE_CONTRACT);
}
}
public SessionOutput getSessionOutput() {
return sessionOutput;
}
public IWarningCollector getWarningCollector() {
return warningCollector;
}
@Override
public void compileAndExecute(IHyracksClientConnection hcc, IRequestParameters requestParameters) throws Exception {
validateStatements(requestParameters);
trackRequest(requestParameters);
int resultSetIdCounter = 0;
FileSplit outputFile = null;
IAWriterFactory writerFactory = PrinterBasedWriterFactory.INSTANCE;
IResultSerializerFactoryProvider resultSerializerFactoryProvider = ResultSerializerFactoryProvider.INSTANCE;
String threadName = Thread.currentThread().getName();
Thread.currentThread().setName(
QueryTranslator.class.getSimpleName() + ":" + requestParameters.getRequestReference().getUuid());
Map<String, String> config = new HashMap<>();
final IResultSet resultSet = requestParameters.getResultSet();
final ResultDelivery resultDelivery = requestParameters.getResultProperties().getDelivery();
final long maxResultReads = requestParameters.getResultProperties().getMaxReads();
final Stats stats = requestParameters.getStats();
final StatementProperties statementProperties = requestParameters.getStatementProperties();
final ResultMetadata outMetadata = requestParameters.getOutMetadata();
final Map<String, IAObject> stmtParams = requestParameters.getStatementParameters();
warningCollector.setMaxWarnings(sessionConfig.getMaxWarnings());
try {
for (Statement stmt : statements) {
if (sessionConfig.is(SessionConfig.FORMAT_HTML)) {
sessionOutput.out().println(ApiServlet.HTML_STATEMENT_SEPARATOR);
}
validateOperation(appCtx, activeDataverse, stmt);
MetadataProvider metadataProvider = MetadataProvider.create(appCtx, activeDataverse);
configureMetadataProvider(metadataProvider, config, resultSerializerFactoryProvider, writerFactory,
outputFile, requestParameters, stmt);
IStatementRewriter stmtRewriter = rewriterFactory.createStatementRewriter();
rewriteStatement(stmt, stmtRewriter, metadataProvider); // Rewrite the statement's AST.
Statement.Kind kind = stmt.getKind();
statementProperties.setKind(kind);
switch (kind) {
case SET:
handleSetStatement(stmt, config);
break;
case DATAVERSE_DECL:
activeDataverse = handleUseDataverseStatement(metadataProvider, stmt);
break;
case CREATE_DATAVERSE:
handleCreateDataverseStatement(metadataProvider, stmt, requestParameters);
break;
case DATASET_DECL:
handleCreateDatasetStatement(metadataProvider, stmt, hcc, requestParameters);
break;
case CREATE_INDEX:
handleCreateIndexStatement(metadataProvider, stmt, hcc, requestParameters);
break;
case CREATE_FULL_TEXT_FILTER:
handleCreateFullTextFilterStatement(metadataProvider, stmt);
break;
case CREATE_FULL_TEXT_CONFIG:
handleCreateFullTextConfigStatement(metadataProvider, stmt);
break;
case TYPE_DECL:
handleCreateTypeStatement(metadataProvider, stmt);
break;
case NODEGROUP_DECL:
handleCreateNodeGroupStatement(metadataProvider, stmt);
break;
case DATAVERSE_DROP:
handleDataverseDropStatement(metadataProvider, stmt, hcc, requestParameters);
break;
case DATASET_DROP:
handleDatasetDropStatement(metadataProvider, stmt, hcc, requestParameters);
break;
case INDEX_DROP:
handleIndexDropStatement(metadataProvider, stmt, hcc, requestParameters);
break;
case FULL_TEXT_FILTER_DROP:
handleFullTextFilterDrop(metadataProvider, stmt, hcc, requestParameters);
break;
case FULL_TEXT_CONFIG_DROP:
handleFullTextConfigDrop(metadataProvider, stmt, hcc, requestParameters);
break;
case TYPE_DROP:
handleTypeDropStatement(metadataProvider, stmt);
break;
case NODEGROUP_DROP:
handleNodegroupDropStatement(metadataProvider, stmt);
break;
case CREATE_ADAPTER:
handleCreateAdapterStatement(metadataProvider, stmt);
break;
case ADAPTER_DROP:
handleAdapterDropStatement(metadataProvider, stmt);
break;
case CREATE_FUNCTION:
handleCreateFunctionStatement(metadataProvider, stmt, stmtRewriter, requestParameters);
break;
case FUNCTION_DROP:
handleFunctionDropStatement(metadataProvider, stmt, requestParameters);
break;
case CREATE_LIBRARY:
handleCreateLibraryStatement(metadataProvider, stmt, hcc, requestParameters);
break;
case LIBRARY_DROP:
handleLibraryDropStatement(metadataProvider, stmt, hcc, requestParameters);
break;
case CREATE_SYNONYM:
handleCreateSynonymStatement(metadataProvider, stmt);
break;
case SYNONYM_DROP:
handleDropSynonymStatement(metadataProvider, stmt);
break;
case CREATE_VIEW:
handleCreateViewStatement(metadataProvider, stmt, stmtRewriter, requestParameters);
break;
case VIEW_DROP:
handleViewDropStatement(metadataProvider, stmt);
break;
case LOAD:
handleLoadStatement(metadataProvider, stmt, hcc);
break;
case INSERT:
case UPSERT:
if (((InsertStatement) stmt).getReturnExpression() != null) {
metadataProvider.setResultSetId(new ResultSetId(resultSetIdCounter++));
metadataProvider.setResultAsyncMode(resultDelivery == ResultDelivery.ASYNC
|| resultDelivery == ResultDelivery.DEFERRED);
metadataProvider.setMaxResultReads(maxResultReads);
}
handleInsertUpsertStatement(metadataProvider, stmt, hcc, resultSet, resultDelivery, outMetadata,
stats, requestParameters, stmtParams, stmtRewriter);
break;
case DELETE:
handleDeleteStatement(metadataProvider, stmt, hcc, stmtParams, stmtRewriter);
break;
case CREATE_FEED:
handleCreateFeedStatement(metadataProvider, stmt);
break;
case DROP_FEED:
handleDropFeedStatement(metadataProvider, stmt, hcc);
break;
case DROP_FEED_POLICY:
handleDropFeedPolicyStatement(metadataProvider, stmt);
break;
case CONNECT_FEED:
handleConnectFeedStatement(metadataProvider, stmt);
break;
case DISCONNECT_FEED:
handleDisconnectFeedStatement(metadataProvider, stmt);
break;
case START_FEED:
handleStartFeedStatement(metadataProvider, stmt, hcc);
break;
case STOP_FEED:
handleStopFeedStatement(metadataProvider, stmt);
break;
case CREATE_FEED_POLICY:
handleCreateFeedPolicyStatement(metadataProvider, stmt);
break;
case QUERY:
metadataProvider.setResultSetId(new ResultSetId(resultSetIdCounter++));
metadataProvider.setResultAsyncMode(
resultDelivery == ResultDelivery.ASYNC || resultDelivery == ResultDelivery.DEFERRED);
metadataProvider.setMaxResultReads(maxResultReads);
if (stats.getProfileType() == Stats.ProfileType.FULL) {
this.jobFlags.add(JobFlag.PROFILE_RUNTIME);
}
handleQuery(metadataProvider, (Query) stmt, hcc, resultSet, resultDelivery, outMetadata, stats,
requestParameters, stmtParams, stmtRewriter);
break;
case COMPACT:
handleCompactStatement(metadataProvider, stmt, hcc);
break;
case EXTERNAL_DATASET_REFRESH:
handleExternalDatasetRefreshStatement(metadataProvider, stmt, hcc);
break;
case WRITE:
//Deprecated.
break;
case FUNCTION_DECL:
handleDeclareFunctionStatement(metadataProvider, stmt);
break;
case EXTENSION:
final ExtensionStatement extStmt = (ExtensionStatement) stmt;
statementProperties.setName(extStmt.getName());
extStmt.handle(hcc, this, requestParameters, metadataProvider, resultSetIdCounter);
break;
default:
throw new CompilationException(ErrorCode.COMPILATION_ILLEGAL_STATE, stmt.getSourceLocation(),
"Unexpected statement: " + kind);
}
}
} finally {
// async queries are completed after their job completes
if (ResultDelivery.ASYNC != resultDelivery) {
appCtx.getRequestTracker().complete(requestParameters.getRequestReference().getUuid());
}
Thread.currentThread().setName(threadName);
}
}
protected void configureMetadataProvider(MetadataProvider metadataProvider, Map<String, String> config,
IResultSerializerFactoryProvider resultSerializerFactoryProvider, IAWriterFactory writerFactory,
FileSplit outputFile, IRequestParameters requestParameters, Statement statement) {
if (statement.getKind() == Statement.Kind.QUERY && requestParameters.isSQLCompatMode()) {
metadataProvider.getConfig().put(SqlppQueryRewriter.SQL_COMPAT_OPTION, Boolean.TRUE.toString());
}
metadataProvider.getConfig().putAll(config);
metadataProvider.setWriterFactory(writerFactory);
metadataProvider.setResultSerializerFactoryProvider(resultSerializerFactoryProvider);
metadataProvider.setOutputFile(outputFile);
}
protected DataverseDecl getRequestDataverseDecl(IRequestParameters requestParameters) throws AlgebricksException {
String requestDataverseName = requestParameters.getDefaultDataverseName();
if (requestDataverseName == null) {
return null;
}
DataverseName dvName = DataverseName.createFromCanonicalForm(requestDataverseName);
return new DataverseDecl(dvName, true);
}
protected void handleSetStatement(Statement stmt, Map<String, String> config) throws CompilationException {
SetStatement ss = (SetStatement) stmt;
String pname = ss.getPropName();
String pvalue = ss.getPropValue();
if (pname.startsWith(APIFramework.PREFIX_INTERNAL_PARAMETERS)) {
throw new CompilationException(ErrorCode.ILLEGAL_SET_PARAMETER, pname);
}
config.put(pname, pvalue);
}
protected Pair<IAWriterFactory, FileSplit> handleWriteStatement(Statement stmt)
throws InstantiationException, IllegalAccessException, ClassNotFoundException {
WriteStatement ws = (WriteStatement) stmt;
File f = new File(ws.getFileName());
FileSplit outputFile = new UnmanagedFileSplit(ws.getNcName().getValue(), f.getPath());
IAWriterFactory writerFactory = null;
if (ws.getWriterClassName() != null) {
writerFactory = (IAWriterFactory) Class.forName(ws.getWriterClassName()).newInstance();
}
return new Pair<>(writerFactory, outputFile);
}
protected Dataverse handleUseDataverseStatement(MetadataProvider metadataProvider, Statement stmt)
throws Exception {
DataverseDecl dvd = (DataverseDecl) stmt;
DataverseName dvName = dvd.getDataverseName();
metadataProvider.validateDataverseName(dvName, dvd.getSourceLocation());
lockManager.acquireDataverseReadLock(metadataProvider.getLocks(), dvName);
try {
return doUseDataverseStatement(metadataProvider, dvd);
} finally {
metadataProvider.getLocks().unlock();
}
}
protected Dataverse doUseDataverseStatement(MetadataProvider metadataProvider, DataverseDecl stmtUseDataverse)
throws Exception {
MetadataTransactionContext mdTxnCtx = MetadataManager.INSTANCE.beginTransaction();
metadataProvider.setMetadataTxnContext(mdTxnCtx);
try {
DataverseName dvName = stmtUseDataverse.getDataverseName();
Dataverse dv = MetadataManager.INSTANCE.getDataverse(metadataProvider.getMetadataTxnContext(), dvName);
if (dv == null) {
if (stmtUseDataverse.getIfExists()) {
if (warningCollector.shouldWarn()) {
warningCollector.warn(
Warning.of(stmtUseDataverse.getSourceLocation(), ErrorCode.UNKNOWN_DATAVERSE, dvName));
}
MetadataManager.INSTANCE.commitTransaction(mdTxnCtx);
return activeDataverse;
} else {
throw new MetadataException(ErrorCode.UNKNOWN_DATAVERSE, stmtUseDataverse.getSourceLocation(),
dvName);
}
}
MetadataManager.INSTANCE.commitTransaction(mdTxnCtx);
return dv;
} catch (Exception e) {
abort(e, e, mdTxnCtx);
throw e;
}
}
protected void handleCreateDataverseStatement(MetadataProvider metadataProvider, Statement stmt,
IRequestParameters requestParameters) throws Exception {
CreateDataverseStatement stmtCreateDataverse = (CreateDataverseStatement) stmt;
DataverseName dvName = stmtCreateDataverse.getDataverseName();
metadataProvider.validateDataverseName(dvName, stmtCreateDataverse.getSourceLocation());
lockUtil.createDataverseBegin(lockManager, metadataProvider.getLocks(), dvName);
try {
doCreateDataverseStatement(metadataProvider, stmtCreateDataverse, requestParameters);
} finally {
metadataProvider.getLocks().unlock();
}
}
@SuppressWarnings("squid:S00112")
protected boolean doCreateDataverseStatement(MetadataProvider metadataProvider,
CreateDataverseStatement stmtCreateDataverse, IRequestParameters requestParameters) throws Exception {
MetadataTransactionContext mdTxnCtx = MetadataManager.INSTANCE.beginTransaction();
metadataProvider.setMetadataTxnContext(mdTxnCtx);
try {
DataverseName dvName = stmtCreateDataverse.getDataverseName();
Dataverse dv = MetadataManager.INSTANCE.getDataverse(metadataProvider.getMetadataTxnContext(), dvName);
if (dv != null) {
if (stmtCreateDataverse.getIfNotExists()) {
MetadataManager.INSTANCE.commitTransaction(mdTxnCtx);
return false;
} else {
throw new CompilationException(ErrorCode.DATAVERSE_EXISTS, stmtCreateDataverse.getSourceLocation(),
dvName);
}
}
MetadataManager.INSTANCE.addDataverse(metadataProvider.getMetadataTxnContext(),
new Dataverse(dvName, stmtCreateDataverse.getFormat(), MetadataUtil.PENDING_NO_OP));
MetadataManager.INSTANCE.commitTransaction(mdTxnCtx);
return true;
} catch (Exception e) {
abort(e, e, mdTxnCtx);
throw e;
}
}
protected static void validateCompactionPolicy(String compactionPolicy,
Map<String, String> compactionPolicyProperties, MetadataTransactionContext mdTxnCtx,
boolean isExternalDataset, SourceLocation sourceLoc) throws CompilationException, Exception {
CompactionPolicy compactionPolicyEntity = MetadataManager.INSTANCE.getCompactionPolicy(mdTxnCtx,
MetadataConstants.METADATA_DATAVERSE_NAME, compactionPolicy);
if (compactionPolicyEntity == null) {
throw new CompilationException(ErrorCode.COMPILATION_ERROR, sourceLoc,
"Unknown compaction policy: " + compactionPolicy);
}
String compactionPolicyFactoryClassName = compactionPolicyEntity.getClassName();
ILSMMergePolicyFactory mergePolicyFactory =
(ILSMMergePolicyFactory) Class.forName(compactionPolicyFactoryClassName).newInstance();
if (isExternalDataset && mergePolicyFactory.getName().compareTo("correlated-prefix") == 0) {
throw new CompilationException(ErrorCode.COMPILATION_ERROR, sourceLoc,
"The correlated-prefix merge policy cannot be used with external " + dataset(PLURAL));
}
if (compactionPolicyProperties == null) {
if (mergePolicyFactory.getName().compareTo("no-merge") != 0) {
throw new CompilationException(ErrorCode.COMPILATION_ERROR, sourceLoc,
"Compaction policy properties are missing.");
}
} else {
for (Map.Entry<String, String> entry : compactionPolicyProperties.entrySet()) {
if (!mergePolicyFactory.getPropertiesNames().contains(entry.getKey())) {
throw new CompilationException(ErrorCode.COMPILATION_ERROR, sourceLoc,
"Invalid compaction policy property: " + entry.getKey());
}
}
for (String p : mergePolicyFactory.getPropertiesNames()) {
if (!compactionPolicyProperties.containsKey(p)) {
throw new CompilationException(ErrorCode.COMPILATION_ERROR, sourceLoc,
"Missing compaction policy property: " + p);
}
}
}
}
public void handleCreateDatasetStatement(MetadataProvider metadataProvider, Statement stmt,
IHyracksClientConnection hcc, IRequestParameters requestParameters) throws Exception {
DatasetDecl dd = (DatasetDecl) stmt;
String datasetName = dd.getName().getValue();
metadataProvider.validateDatabaseObjectName(dd.getDataverse(), datasetName, stmt.getSourceLocation());
DataverseName dataverseName = getActiveDataverseName(dd.getDataverse());
TypeExpression itemTypeExpr = dd.getItemType();
Triple<DataverseName, String, Boolean> itemTypeQualifiedName =
extractDatasetItemTypeName(dataverseName, datasetName, itemTypeExpr, false, stmt.getSourceLocation());
DataverseName itemTypeDataverseName = itemTypeQualifiedName.first;
String itemTypeName = itemTypeQualifiedName.second;
boolean itemTypeAnonymous = itemTypeQualifiedName.third;
TypeExpression metaItemTypeExpr = dd.getMetaItemType();
DataverseName metaItemTypeDataverseName = null;
String metaItemTypeName = null;
boolean metaItemTypeAnonymous;
if (metaItemTypeExpr != null) {
Triple<DataverseName, String, Boolean> metaItemTypeQualifiedName = extractDatasetItemTypeName(dataverseName,
datasetName, metaItemTypeExpr, true, stmt.getSourceLocation());
metaItemTypeDataverseName = metaItemTypeQualifiedName.first;
metaItemTypeName = metaItemTypeQualifiedName.second;
metaItemTypeAnonymous = metaItemTypeQualifiedName.third;
} else {
metaItemTypeAnonymous = true; // doesn't matter
}
String nodegroupName = dd.getNodegroupName();
String compactionPolicy = dd.getCompactionPolicy();
boolean defaultCompactionPolicy = compactionPolicy == null;
lockUtil.createDatasetBegin(lockManager, metadataProvider.getLocks(), dataverseName, datasetName,
itemTypeDataverseName, itemTypeName, itemTypeAnonymous, metaItemTypeDataverseName, metaItemTypeName,
metaItemTypeAnonymous, nodegroupName, compactionPolicy, defaultCompactionPolicy, dd.getDatasetType(),
dd.getDatasetDetailsDecl());
try {
doCreateDatasetStatement(metadataProvider, dd, dataverseName, datasetName, itemTypeDataverseName,
itemTypeExpr, itemTypeName, metaItemTypeExpr, metaItemTypeDataverseName, metaItemTypeName, hcc,
requestParameters);
} finally {
metadataProvider.getLocks().unlock();
}
}
protected Optional<? extends Dataset> doCreateDatasetStatement(MetadataProvider metadataProvider, DatasetDecl dd,
DataverseName dataverseName, String datasetName, DataverseName itemTypeDataverseName,
TypeExpression itemTypeExpr, String itemTypeName, TypeExpression metaItemTypeExpr,
DataverseName metaItemTypeDataverseName, String metaItemTypeName, IHyracksClientConnection hcc,
IRequestParameters requestParameters) throws Exception {
MutableObject<ProgressState> progress = new MutableObject<>(ProgressState.NO_PROGRESS);
SourceLocation sourceLoc = dd.getSourceLocation();
DatasetType dsType = dd.getDatasetType();
String ngNameId = dd.getNodegroupName();
String compactionPolicy = dd.getCompactionPolicy();
Map<String, String> compactionPolicyProperties = dd.getCompactionPolicyProperties();
String compressionScheme = metadataProvider.getCompressionManager()
.getDdlOrDefaultCompressionScheme(dd.getDatasetCompressionScheme());
MetadataTransactionContext mdTxnCtx = MetadataManager.INSTANCE.beginTransaction();
boolean bActiveTxn = true;
metadataProvider.setMetadataTxnContext(mdTxnCtx);
Dataset dataset = null;
Datatype itemTypeEntity = null, metaItemTypeEntity = null;
boolean itemTypeAdded = false, metaItemTypeAdded = false;
try {
// Check if the dataverse exists
Dataverse dv = MetadataManager.INSTANCE.getDataverse(mdTxnCtx, dataverseName);
if (dv == null) {
throw new CompilationException(ErrorCode.UNKNOWN_DATAVERSE, sourceLoc, dataverseName);
}
IDatasetDetails datasetDetails;
Dataset ds = metadataProvider.findDataset(dataverseName, datasetName, true);
if (ds != null) {
if (ds.getDatasetType() == DatasetType.VIEW) {
throw new CompilationException(ErrorCode.VIEW_EXISTS, sourceLoc,
DatasetUtil.getFullyQualifiedDisplayName(ds));
}
if (dd.getIfNotExists()) {
MetadataManager.INSTANCE.commitTransaction(mdTxnCtx);
return Optional.empty();
} else {
throw new CompilationException(ErrorCode.DATASET_EXISTS, sourceLoc, datasetName, dataverseName);
}
}
Pair<Datatype, Boolean> itemTypePair = fetchDatasetItemType(mdTxnCtx, dsType, itemTypeDataverseName,
itemTypeName, itemTypeExpr, false, metadataProvider, sourceLoc);
itemTypeEntity = itemTypePair.first;
IAType itemType = itemTypeEntity.getDatatype();
boolean itemTypeIsInline = itemTypePair.second;
String ngName = ngNameId != null ? ngNameId
: configureNodegroupForDataset(appCtx, dd.getHints(), dataverseName, datasetName, metadataProvider,
sourceLoc);
if (compactionPolicy == null) {
compactionPolicy = StorageConstants.DEFAULT_COMPACTION_POLICY_NAME;
compactionPolicyProperties = StorageConstants.DEFAULT_COMPACTION_POLICY_PROPERTIES;
} else {
validateCompactionPolicy(compactionPolicy, compactionPolicyProperties, mdTxnCtx, false, sourceLoc);
}
IAType metaItemType = null;
boolean metaItemTypeIsInline = false;
switch (dsType) {
case INTERNAL:
if (metaItemTypeExpr != null) {
Pair<Datatype, Boolean> metaItemTypePair =
fetchDatasetItemType(mdTxnCtx, dsType, metaItemTypeDataverseName, metaItemTypeName,
metaItemTypeExpr, true, metadataProvider, sourceLoc);
metaItemTypeEntity = metaItemTypePair.first;
metaItemType = metaItemTypeEntity.getDatatype();
metaItemTypeIsInline = metaItemTypePair.second;
}
ARecordType metaRecType = (ARecordType) metaItemType;
List<List<String>> partitioningExprs =
((InternalDetailsDecl) dd.getDatasetDetailsDecl()).getPartitioningExprs();
List<Integer> keySourceIndicators =
((InternalDetailsDecl) dd.getDatasetDetailsDecl()).getKeySourceIndicators();
boolean autogenerated = ((InternalDetailsDecl) dd.getDatasetDetailsDecl()).isAutogenerated();
ARecordType aRecordType = (ARecordType) itemType;
List<IAType> partitioningTypes = ValidateUtil.validatePartitioningExpressions(aRecordType,
metaRecType, partitioningExprs, keySourceIndicators, autogenerated, sourceLoc);
List<String> filterField = ((InternalDetailsDecl) dd.getDatasetDetailsDecl()).getFilterField();
Integer filterSourceIndicator =
((InternalDetailsDecl) dd.getDatasetDetailsDecl()).getFilterSourceIndicator();
if (filterField != null) {
ValidateUtil.validateFilterField(aRecordType, metaRecType, filterSourceIndicator, filterField,
sourceLoc);
}
if (compactionPolicy == null && filterField != null) {
// If the dataset has a filter and the user didn't specify a merge
// policy, then we will pick the
// correlated-prefix as the default merge policy.
compactionPolicy = StorageConstants.DEFAULT_FILTERED_DATASET_COMPACTION_POLICY_NAME;
compactionPolicyProperties = StorageConstants.DEFAULT_COMPACTION_POLICY_PROPERTIES;
}
datasetDetails = new InternalDatasetDetails(InternalDatasetDetails.FileStructure.BTREE,
InternalDatasetDetails.PartitioningStrategy.HASH, partitioningExprs, partitioningExprs,
keySourceIndicators, partitioningTypes, autogenerated, filterSourceIndicator, filterField);
break;
case EXTERNAL:
ExternalDetailsDecl externalDetails = (ExternalDetailsDecl) dd.getDatasetDetailsDecl();
Map<String, String> properties = createExternalDatasetProperties(dataverseName, dd, itemTypeEntity,
metadataProvider, mdTxnCtx);
ExternalDataUtils.normalize(properties);
ExternalDataUtils.validate(properties);
validateExternalDatasetProperties(externalDetails, properties, dd.getSourceLocation(), mdTxnCtx);
datasetDetails = new ExternalDatasetDetails(externalDetails.getAdapter(), properties, new Date(),
TransactionState.COMMIT);
break;
default:
throw new CompilationException(ErrorCode.COMPILATION_UNKNOWN_DATASET_TYPE,
dataset.getDatasetType().toString());
}
// #. initialize DatasetIdFactory if it is not initialized.
if (!DatasetIdFactory.isInitialized()) {
DatasetIdFactory.initialize(MetadataManager.INSTANCE.getMostRecentDatasetId());
}
// #. add a new dataset with PendingAddOp
dataset = new Dataset(dataverseName, datasetName, itemTypeDataverseName, itemTypeName,
metaItemTypeDataverseName, metaItemTypeName, ngName, compactionPolicy, compactionPolicyProperties,
datasetDetails, dd.getHints(), dsType, DatasetIdFactory.generateDatasetId(),
MetadataUtil.PENDING_ADD_OP, compressionScheme);
MetadataManager.INSTANCE.addDataset(metadataProvider.getMetadataTxnContext(), dataset);
if (itemTypeIsInline) {
MetadataManager.INSTANCE.addDatatype(mdTxnCtx, itemTypeEntity);
itemTypeAdded = true;
}
if (metaItemTypeIsInline) {
MetadataManager.INSTANCE.addDatatype(mdTxnCtx, metaItemTypeEntity);
metaItemTypeAdded = true;
}
if (dsType == DatasetType.INTERNAL) {
JobSpecification jobSpec = DatasetUtil.createDatasetJobSpec(dataset, metadataProvider);
// #. make metadataTxn commit before calling runJob.
MetadataManager.INSTANCE.commitTransaction(mdTxnCtx);
bActiveTxn = false;
progress.setValue(ProgressState.ADDED_PENDINGOP_RECORD_TO_METADATA);
// #. runJob
runJob(hcc, jobSpec);
// #. begin new metadataTxn
mdTxnCtx = MetadataManager.INSTANCE.beginTransaction();
bActiveTxn = true;
metadataProvider.setMetadataTxnContext(mdTxnCtx);
}
// #. add a new dataset with PendingNoOp after deleting the dataset with
// PendingAddOp
MetadataManager.INSTANCE.dropDataset(metadataProvider.getMetadataTxnContext(), dataverseName, datasetName,
requestParameters.isForceDropDataset());
dataset.setPendingOp(MetadataUtil.PENDING_NO_OP);
MetadataManager.INSTANCE.addDataset(metadataProvider.getMetadataTxnContext(), dataset);
MetadataManager.INSTANCE.commitTransaction(mdTxnCtx);
} catch (Exception e) {
if (bActiveTxn) {
abort(e, e, mdTxnCtx);
}
if (progress.getValue() == ProgressState.ADDED_PENDINGOP_RECORD_TO_METADATA) {
// #. execute compensation operations
// remove the index in NC
// [Notice]
// As long as we updated(and committed) metadata, we should remove any effect of
// the job
// because an exception occurs during runJob.
mdTxnCtx = MetadataManager.INSTANCE.beginTransaction();
bActiveTxn = true;
metadataProvider.setMetadataTxnContext(mdTxnCtx);
try {
JobSpecification jobSpec =
DatasetUtil.dropDatasetJobSpec(dataset, metadataProvider, EnumSet.of(DropOption.IF_EXISTS));
MetadataManager.INSTANCE.commitTransaction(mdTxnCtx);
bActiveTxn = false;
runJob(hcc, jobSpec);
} catch (Exception e2) {
e.addSuppressed(e2);
if (bActiveTxn) {
abort(e, e2, mdTxnCtx);
}
}
// remove the record from the metadata.
mdTxnCtx = MetadataManager.INSTANCE.beginTransaction();
metadataProvider.setMetadataTxnContext(mdTxnCtx);
try {
MetadataManager.INSTANCE.dropDataset(mdTxnCtx, dataverseName, datasetName,
requestParameters.isForceDropDataset());
if (itemTypeAdded) {
MetadataManager.INSTANCE.dropDatatype(mdTxnCtx, itemTypeEntity.getDataverseName(),
itemTypeEntity.getDatatypeName());
}
if (metaItemTypeAdded) {
MetadataManager.INSTANCE.dropDatatype(mdTxnCtx, metaItemTypeEntity.getDataverseName(),
metaItemTypeEntity.getDatatypeName());
}
MetadataManager.INSTANCE.commitTransaction(mdTxnCtx);
} catch (Exception e2) {
e.addSuppressed(e2);
abort(e, e2, mdTxnCtx);
throw new IllegalStateException("System is inconsistent state: pending dataset(" + dataverseName
+ "." + datasetName + ") couldn't be removed from the metadata", e);
}
}
throw e;
}
return Optional.of(dataset);
}
protected Triple<DataverseName, String, Boolean> extractDatasetItemTypeName(DataverseName datasetDataverseName,
String datasetName, TypeExpression itemTypeExpr, boolean isMetaItemType, SourceLocation sourceLoc)
throws CompilationException {
switch (itemTypeExpr.getTypeKind()) {
case TYPEREFERENCE:
TypeReferenceExpression itemTypeRefExpr = (TypeReferenceExpression) itemTypeExpr;
Pair<DataverseName, Identifier> itemTypeIdent = itemTypeRefExpr.getIdent();
DataverseName typeDataverseName =
itemTypeIdent.first != null ? itemTypeIdent.first : datasetDataverseName;
String typeName = itemTypeRefExpr.getIdent().second.getValue();
return new Triple<>(typeDataverseName, typeName, false);
case RECORD:
String inlineTypeName = TypeUtil.createDatasetInlineTypeName(datasetName, isMetaItemType);
return new Triple<>(datasetDataverseName, inlineTypeName, true);
default:
throw new CompilationException(ErrorCode.COMPILATION_ILLEGAL_STATE, sourceLoc,
String.valueOf(itemTypeExpr.getTypeKind()));
}
}
protected Pair<Datatype, Boolean> fetchDatasetItemType(MetadataTransactionContext mdTxnCtx, DatasetType datasetType,
DataverseName itemTypeDataverseName, String itemTypeName, TypeExpression itemTypeExpr,
boolean isMetaItemType, MetadataProvider metadataProvider, SourceLocation sourceLoc)
throws AlgebricksException {
switch (itemTypeExpr.getTypeKind()) {
case TYPEREFERENCE:
Datatype itemTypeEntity = metadataProvider.findTypeEntity(itemTypeDataverseName, itemTypeName);
if (itemTypeEntity == null || itemTypeEntity.getIsAnonymous()) {
// anonymous types cannot be referred from CREATE DATASET/VIEW
throw new AsterixException(ErrorCode.UNKNOWN_TYPE, sourceLoc,
DatasetUtil.getFullyQualifiedDisplayName(itemTypeDataverseName, itemTypeName));
}
IAType itemType = itemTypeEntity.getDatatype();
validateDatasetItemType(datasetType, itemType, isMetaItemType, sourceLoc);
return new Pair<>(itemTypeEntity, false);
case RECORD:
itemType = translateType(itemTypeDataverseName, itemTypeName, itemTypeExpr, mdTxnCtx);
validateDatasetItemType(datasetType, itemType, isMetaItemType, sourceLoc);
itemTypeEntity = new Datatype(itemTypeDataverseName, itemTypeName, itemType, true);
return new Pair<>(itemTypeEntity, true);
default:
throw new CompilationException(ErrorCode.COMPILATION_ILLEGAL_STATE, sourceLoc,
String.valueOf(itemTypeExpr.getTypeKind()));
}
}
protected void validateDatasetItemType(DatasetType datasetType, IAType itemType, boolean isMetaItemType,
SourceLocation sourceLoc) throws AlgebricksException {
if (itemType.getTypeTag() != ATypeTag.OBJECT) {
throw new CompilationException(ErrorCode.COMPILATION_ERROR, sourceLoc,
String.format("%s %s has to be a record type.",
datasetType == DatasetType.VIEW ? "view" : StringUtils.capitalize(dataset()),
isMetaItemType ? "meta type" : "type"));
}
if (datasetType == DatasetType.VIEW) {
ViewUtil.validateViewItemType((ARecordType) itemType, sourceLoc);
}
}