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DataTierManagerImpl.java
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DataTierManagerImpl.java
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/*
* JBoss, Home of Professional Open Source.
* See the COPYRIGHT.txt file distributed with this work for information
* regarding copyright ownership. Some portions may be licensed
* to Red Hat, Inc. under one or more contributor license agreements.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301 USA.
*/
package org.teiid.dqp.internal.process;
import java.io.IOException;
import java.sql.Clob;
import java.sql.DatabaseMetaData;
import java.sql.SQLException;
import java.sql.Timestamp;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import java.util.TreeMap;
import java.util.concurrent.Callable;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.Future;
import java.util.concurrent.atomic.AtomicBoolean;
import org.teiid.adminapi.impl.ModelMetaData;
import org.teiid.adminapi.impl.VDBMetaData;
import org.teiid.api.exception.query.QueryMetadataException;
import org.teiid.client.RequestMessage;
import org.teiid.common.buffer.BlockedException;
import org.teiid.common.buffer.BufferManager;
import org.teiid.common.buffer.BufferManager.TupleSourceType;
import org.teiid.common.buffer.TupleBuffer;
import org.teiid.common.buffer.TupleSource;
import org.teiid.core.CoreConstants;
import org.teiid.core.TeiidComponentException;
import org.teiid.core.TeiidException;
import org.teiid.core.TeiidProcessingException;
import org.teiid.core.TeiidRuntimeException;
import org.teiid.core.types.BlobType;
import org.teiid.core.types.ClobImpl;
import org.teiid.core.types.ClobType;
import org.teiid.core.types.SQLXMLImpl;
import org.teiid.core.types.XMLType;
import org.teiid.core.util.Assertion;
import org.teiid.core.util.ObjectConverterUtil;
import org.teiid.core.util.StringUtil;
import org.teiid.dqp.internal.datamgr.ConnectorManager;
import org.teiid.dqp.internal.datamgr.ConnectorManagerRepository;
import org.teiid.dqp.internal.datamgr.ConnectorWork;
import org.teiid.dqp.internal.process.AbstractWorkItem.ThreadState;
import org.teiid.dqp.internal.process.DQPCore.CompletionListener;
import org.teiid.dqp.internal.process.RecordTable.ExpandingSimpleIterator;
import org.teiid.dqp.internal.process.RecordTable.SimpleIterator;
import org.teiid.dqp.internal.process.RecordTable.SimpleIteratorWrapper;
import org.teiid.dqp.internal.process.SessionAwareCache.CacheID;
import org.teiid.dqp.internal.process.TupleSourceCache.CachableVisitor;
import org.teiid.dqp.internal.process.TupleSourceCache.CopyOnReadTupleSource;
import org.teiid.dqp.message.AtomicRequestMessage;
import org.teiid.events.EventDistributor;
import org.teiid.logging.LogConstants;
import org.teiid.logging.LogManager;
import org.teiid.logging.MessageLevel;
import org.teiid.metadata.*;
import org.teiid.metadata.Table.TriggerEvent;
import org.teiid.metadata.Table.Type;
import org.teiid.query.QueryPlugin;
import org.teiid.query.metadata.CompositeMetadataStore;
import org.teiid.query.metadata.CompositeMetadataStore.RecordHolder;
import org.teiid.query.metadata.SystemMetadata;
import org.teiid.query.metadata.TempMetadataID;
import org.teiid.query.metadata.TransformationMetadata;
import org.teiid.query.optimizer.relational.RelationalPlanner;
import org.teiid.query.parser.ParseInfo;
import org.teiid.query.processor.CollectionTupleSource;
import org.teiid.query.processor.ProcessorDataManager;
import org.teiid.query.processor.RegisterRequestParameter;
import org.teiid.query.processor.relational.RelationalNodeUtil;
import org.teiid.query.resolver.util.ResolverUtil;
import org.teiid.query.sql.lang.Command;
import org.teiid.query.sql.lang.Criteria;
import org.teiid.query.sql.lang.Query;
import org.teiid.query.sql.lang.StoredProcedure;
import org.teiid.query.sql.lang.UnaryFromClause;
import org.teiid.query.sql.navigator.PreOrPostOrderNavigator;
import org.teiid.query.sql.symbol.Constant;
import org.teiid.query.sql.symbol.ElementSymbol;
import org.teiid.query.sql.symbol.GroupSymbol;
import org.teiid.query.sql.visitor.GroupCollectorVisitor;
import org.teiid.query.tempdata.BaseIndexInfo;
import org.teiid.query.tempdata.GlobalTableStore;
import org.teiid.query.tempdata.GlobalTableStoreImpl.MatTableInfo;
import org.teiid.query.util.CommandContext;
import org.teiid.translator.CacheDirective;
import org.teiid.translator.CacheDirective.Invalidation;
import org.teiid.translator.CacheDirective.Scope;
import org.teiid.translator.TranslatorException;
/**
* Full {@link ProcessorDataManager} implementation that
* controls access to {@link ConnectorManager}s and handles system queries.
*/
public class DataTierManagerImpl implements ProcessorDataManager {
private static final int MAX_VALUE_LENGTH = 1 << 21;
private static final class ThreadBoundTask implements Callable<Void>, CompletionListener<Void> {
private final RequestWorkItem workItem;
private final TupleSource toRead;
final AtomicBoolean done = new AtomicBoolean();
private final DataTierTupleSource dtts;
private ThreadBoundTask(RequestWorkItem workItem, TupleSource toRead, DataTierTupleSource dtts) {
this.workItem = workItem;
this.toRead = toRead;
this.dtts = dtts;
}
@Override
public Void call() throws TeiidProcessingException, TeiidComponentException {
//pull the whole thing. the side effect will be saving
while (true) {
try {
if (done.get() || toRead.nextTuple() == null) {
break;
}
signalMore();
} catch (BlockedException e) {
//data not available
Future<Void> future = dtts.getScheduledFuture();
if (future != null) {
try {
future.get();
} catch (Exception e1) {
throw new TeiidComponentException(e);
}
}
}
};
return null;
}
private void signalMore() {
if (!done.get()) {
synchronized (workItem) {
if (workItem.getThreadState() != ThreadState.MORE_WORK) {
workItem.moreWork();
}
}
}
}
@Override
public void onCompletion(FutureWork<Void> future) {
signalMore();
toRead.closeSource();
dtts.fullyCloseSource();
}
}
private enum SystemTables {
VIRTUALDATABASES,
SCHEMAS,
TABLES,
DATATYPES,
COLUMNS,
KEYS,
PROCEDURES,
KEYCOLUMNS,
PROCEDUREPARAMS,
REFERENCEKEYCOLUMNS,
PROPERTIES,
FUNCTIONS,
FUNCTIONPARAMS,
}
private enum SystemAdminTables {
MATVIEWS,
VDBRESOURCES,
TRIGGERS,
VIEWS,
STOREDPROCEDURES,
USAGE
}
private enum SystemAdminProcs {
SETTABLESTATS,
SETCOLUMNSTATS,
SETPROPERTY,
LOGMSG,
ISLOGGABLE,
}
private enum SystemProcs {
GETXMLSCHEMAS,
}
private static final TreeMap<String, Integer> levelMap = new TreeMap<String, Integer>(String.CASE_INSENSITIVE_ORDER);
static {
levelMap.put("OFF", MessageLevel.NONE); //$NON-NLS-1$
levelMap.put("FATAL", MessageLevel.CRITICAL); //$NON-NLS-1$
levelMap.put("ERROR", MessageLevel.ERROR); //$NON-NLS-1$
levelMap.put("WARN", MessageLevel.WARNING); //$NON-NLS-1$
levelMap.put("INFO", MessageLevel.INFO); //$NON-NLS-1$
levelMap.put("DEBUG", MessageLevel.DETAIL); //$NON-NLS-1$
levelMap.put("TRACE", MessageLevel.TRACE); //$NON-NLS-1$
}
public static int getLevel(String level) throws TeiidProcessingException {
Integer intLevel = levelMap.get(level);
if (intLevel == null) {
throw new TeiidProcessingException(QueryPlugin.Event.TEIID30546, QueryPlugin.Util.gs(QueryPlugin.Event.TEIID30546, level, levelMap.keySet()));
}
return intLevel;
}
// Resources
DQPCore requestMgr;
private BufferManager bufferManager;
private EventDistributor eventDistributor;
private boolean detectChangeEvents;
private Map<SystemTables, BaseExtractionTable<?>> systemTables = new HashMap<SystemTables, BaseExtractionTable<?>>();
private Map<SystemAdminTables, BaseExtractionTable<?>> systemAdminTables = new HashMap<SystemAdminTables, BaseExtractionTable<?>>();
public DataTierManagerImpl(DQPCore requestMgr, BufferManager bufferMgr, boolean detectChangeEvents) {
this.requestMgr = requestMgr;
this.bufferManager = bufferMgr;
this.detectChangeEvents = detectChangeEvents;
MetadataStore ms = SystemMetadata.getInstance().getSystemStore();
TransformationMetadata tm = new TransformationMetadata(null, new CompositeMetadataStore(ms), null, null, null);
String name = SystemTables.SCHEMAS.name();
List<ElementSymbol> columns = getColumns(tm, name);
systemTables.put(SystemTables.SCHEMAS, new RecordExtractionTable<Schema>(new SchemaRecordTable(1, columns), columns) {
@Override
public void fillRow(List<Object> row, Schema model,
VDBMetaData vdb, TransformationMetadata metadata,
CommandContext cc, SimpleIterator<Schema> iter) {
row.add(vdb.getName());
row.add(model.getName());
row.add(model.isPhysical());
row.add(model.getUUID());
row.add(model.getAnnotation());
row.add(model.getPrimaryMetamodelUri());
row.add(null);
}
});
name = SystemTables.TABLES.name();
columns = getColumns(tm, name);
systemTables.put(SystemTables.TABLES, new RecordExtractionTable<Table>(new TableSystemTable(1, 2, columns), columns) {
@Override
public void fillRow(List<Object> row, Table table,
VDBMetaData v, TransformationMetadata metadata,
CommandContext cc, SimpleIterator<Table> iter) {
row.add(v.getName());
row.add(table.getParent().getName());
row.add(table.getName());
row.add(table.getTableType().toString());
row.add(table.getNameInSource());
row.add(table.isPhysical());
row.add(table.supportsUpdate());
row.add(table.getUUID());
row.add(table.getCardinality());
row.add(table.getAnnotation());
row.add(table.isSystem());
row.add(table.isMaterialized());
row.add(null);
}
});
name = SystemAdminTables.MATVIEWS.name();
columns = getColumns(tm, name);
systemAdminTables.put(SystemAdminTables.MATVIEWS, new RecordExtractionTable<Table>(new TableSystemTable(1, 2, columns) {
@Override
protected boolean isValid(Table s, VDBMetaData vdb,
List<Object> rowBuffer, Criteria condition)
throws TeiidProcessingException, TeiidComponentException {
if (s == null || !s.isMaterialized()) {
return false;
}
return super.isValid(s, vdb, rowBuffer, condition);
}
}, columns) {
@Override
public void fillRow(List<Object> row, Table table,
VDBMetaData v, TransformationMetadata m, CommandContext cc, SimpleIterator<Table> iter) {
String targetSchema = null;
String matTableName = null;
String state = null;
Timestamp updated = null;
Integer cardinaltity = null;
Boolean valid = null;
if (table.getMaterializedTable() == null) {
GlobalTableStore globalStore = cc.getGlobalTableStore();
matTableName = RelationalPlanner.MAT_PREFIX+table.getFullName().toUpperCase();
TempMetadataID id = globalStore.getGlobalTempTableMetadataId(matTableName);
if (id != null && id.getCacheHint() != null && id.getCacheHint().getScope() != null && Scope.VDB.compareTo(id.getCacheHint().getScope()) > 0) {
//consult the session store instead
globalStore = cc.getSessionScopedStore(false);
if (globalStore == null) {
globalStore = cc.getGlobalTableStore();
}
}
MatTableInfo info = globalStore.getMatTableInfo(matTableName);
valid = info.isValid();
state = info.getState().name();
updated = info.getUpdateTime()==-1?null:new Timestamp(info.getUpdateTime());
if (id != null) {
cardinaltity = id.getCardinality();
}
//ttl, pref_mem - not part of proper metadata
} else {
Table t = table.getMaterializedTable();
matTableName = t.getName();
targetSchema = t.getParent().getName();
}
row.add(v.getName());
row.add(table.getParent().getName());
row.add(table.getName());
row.add(targetSchema);
row.add(matTableName);
row.add(valid);
row.add(state);
row.add(updated);
row.add(cardinaltity);
}
});
name = SystemAdminTables.VDBRESOURCES.name();
columns = getColumns(tm, name);
systemAdminTables.put(SystemAdminTables.VDBRESOURCES, new BaseExtractionTable<String>(columns) {
@Override
public SimpleIterator<String> createIterator(VDBMetaData vdb,
TransformationMetadata metadata, CommandContext cc) throws QueryMetadataException, TeiidComponentException {
String[] vals = metadata.getVDBResourcePaths();
return new SimpleIteratorWrapper<String>(Arrays.asList(vals).iterator());
}
@Override
public void fillRow(List<Object> row, String filePath,
VDBMetaData v, TransformationMetadata m, CommandContext cc, SimpleIterator<String> iter) {
row.add(filePath);
row.add(new BlobType(m.getVDBResourceAsBlob(filePath)));
}
});
name = SystemTables.PROCEDURES.name();
columns = getColumns(tm, name);
systemTables.put(SystemTables.PROCEDURES, new RecordExtractionTable<Procedure>(new ProcedureSystemTable(1, 2, columns), columns) {
@Override
public void fillRow(List<Object> row, Procedure proc,
VDBMetaData v, TransformationMetadata metadata,
CommandContext cc, SimpleIterator<Procedure> iter) {
row.add(v.getName());
row.add(proc.getParent().getName());
row.add(proc.getName());
row.add(proc.getNameInSource());
row.add(proc.getResultSet() != null);
row.add(proc.getUUID());
row.add(proc.getAnnotation());
row.add(null);
}
});
name = SystemTables.FUNCTIONS.name();
columns = getColumns(tm, name);
systemTables.put(SystemTables.FUNCTIONS, new RecordExtractionTable<FunctionMethod>(new FunctionSystemTable(1, 4, columns), columns) {
@Override
public void fillRow(List<Object> row, FunctionMethod proc,
VDBMetaData v, TransformationMetadata metadata,
CommandContext cc, SimpleIterator<FunctionMethod> iter) {
row.add(v.getName());
if (proc.getParent() != null) {
row.add(proc.getParent().getName());
} else {
row.add(CoreConstants.SYSTEM_MODEL);
}
row.add(proc.getName());
row.add(proc.getNameInSource());
row.add(proc.getUUID());
row.add(proc.getAnnotation());
row.add(proc.isVarArgs());
}
});
name = SystemTables.DATATYPES.name();
columns = getColumns(tm, name);
systemTables.put(SystemTables.DATATYPES, new RecordExtractionTable<Datatype>(new RecordTable<Datatype>(new int[] {0}, columns) {
@Override
public SimpleIterator<Datatype> processQuery(VDBMetaData vdb,
CompositeMetadataStore metadataStore, BaseIndexInfo<?> ii) {
return processQuery(vdb, metadataStore.getDatatypes(), ii);
}
}, columns) {
@Override
public void fillRow(List<Object> row, Datatype datatype,
VDBMetaData vdb, TransformationMetadata metadata,
CommandContext cc, SimpleIterator<Datatype> iter) {
row.add(datatype.getName());
row.add(datatype.isBuiltin());
row.add(datatype.isBuiltin());
row.add(datatype.getName());
row.add(datatype.getJavaClassName());
row.add(datatype.getScale());
row.add(datatype.getLength());
row.add(datatype.getNullType().toString());
row.add(datatype.isSigned());
row.add(datatype.isAutoIncrement());
row.add(datatype.isCaseSensitive());
row.add(datatype.getPrecision());
row.add(datatype.getRadix());
row.add(datatype.getSearchType().toString());
row.add(datatype.getUUID());
row.add(datatype.getRuntimeTypeName());
row.add(datatype.getBasetypeName());
row.add(datatype.getAnnotation());
row.add(null);
}
});
name = SystemTables.VIRTUALDATABASES.name();
columns = getColumns(tm, name);
systemTables.put(SystemTables.VIRTUALDATABASES, new BaseExtractionTable<VDBMetaData>(columns) {
@Override
public SimpleIterator<VDBMetaData> createIterator(VDBMetaData vdb,
TransformationMetadata metadata, CommandContext cc)
throws QueryMetadataException, TeiidComponentException {
return new SimpleIteratorWrapper<VDBMetaData>(Arrays.asList(vdb).iterator());
}
@Override
public void fillRow(List<Object> row, VDBMetaData record,
VDBMetaData vdb, TransformationMetadata metadata,
CommandContext cc, SimpleIterator<VDBMetaData> iter) {
row.add(record.getName());
row.add(String.valueOf(record.getVersion()));
}
});
name = SystemTables.PROCEDUREPARAMS.name();
columns = getColumns(tm, name);
systemTables.put(SystemTables.PROCEDUREPARAMS, new ChildRecordExtractionTable<Procedure, BaseColumn>(new ProcedureSystemTable(1, 2, columns), columns) {
@Override
public void fillRow(List<Object> row, BaseColumn param,
VDBMetaData vdb, TransformationMetadata metadata,
CommandContext cc, SimpleIterator<BaseColumn> iter) {
Datatype dt = param.getDatatype();
row.add(vdb.getName());
String type = "ResultSet"; //$NON-NLS-1$
AbstractMetadataRecord proc = param.getParent();
boolean isOptional = false;
if (param instanceof ProcedureParameter) {
ProcedureParameter pp = (ProcedureParameter)param;
type = pp.getType().name();
isOptional = pp.isOptional();
} else {
Column pp = (Column)param;
proc = param.getParent().getParent();
}
row.add(proc.getParent().getName());
row.add(proc.getName());
row.add(param.getName());
row.add(param.getRuntimeType());
row.add(param.getPosition());
row.add(type);
row.add(isOptional);
row.add(param.getPrecision());
row.add(param.getLength());
row.add(param.getScale());
row.add(param.getRadix());
row.add(param.getNullType().toString());
row.add(param.getUUID());
row.add(param.getAnnotation());
row.add(null);
}
@Override
protected Collection<? extends BaseColumn> getChildren(final Procedure parent) {
Collection<ProcedureParameter> params = parent.getParameters();
if (parent.getResultSet() == null) {
return params;
}
//TODO: don't incur the gc cost of the temp list
Collection<Column> rsColumns = parent.getResultSet().getColumns();
ArrayList<BaseColumn> result = new ArrayList<BaseColumn>(params.size() + rsColumns.size());
result.addAll(params);
result.addAll(rsColumns);
return result;
}
});
name = SystemTables.FUNCTIONPARAMS.name();
columns = getColumns(tm, name);
systemTables.put(SystemTables.FUNCTIONPARAMS, new ChildRecordExtractionTable<FunctionMethod, FunctionParameter>(new FunctionSystemTable(1, 3, columns), columns) {
@Override
public void fillRow(List<Object> row, FunctionParameter param,
VDBMetaData vdb, TransformationMetadata metadata,
CommandContext cc, SimpleIterator<FunctionParameter> iter) {
row.add(vdb.getName());
FunctionMethod parent = ((ExpandingSimpleIterator<FunctionMethod, FunctionParameter>)iter).getCurrentParent();
if (parent.getParent() == null) {
row.add(CoreConstants.SYSTEM_MODEL);
} else {
row.add(parent.getParent().getName());
}
row.add(parent.getName());
row.add(parent.getUUID());
row.add(param.getName());
row.add(param.getRuntimeType());
row.add(param.getPosition());
row.add(param.getPosition()==0?"ReturnValue":"In"); //$NON-NLS-1$ //$NON-NLS-2$
row.add(param.getPrecision());
row.add(param.getLength());
row.add(param.getScale());
row.add(param.getRadix());
row.add(param.getNullType().toString());
//row.add(param.getUUID());
row.add(param.getAnnotation());
row.add(null);
}
@Override
protected Collection<? extends FunctionParameter> getChildren(final FunctionMethod parent) {
ArrayList<FunctionParameter> result = new ArrayList<FunctionParameter>(parent.getInputParameters().size() + 1);
result.addAll(parent.getInputParameters());
result.add(parent.getOutputParameter());
return result;
}
});
name = SystemTables.PROPERTIES.name();
columns = getColumns(tm, name);
systemTables.put(SystemTables.PROPERTIES, new ChildRecordExtractionTable<AbstractMetadataRecord, Map.Entry<String, String>>(
new RecordTable<AbstractMetadataRecord>(new int[] {0}, columns.subList(2, 3)) {
@Override
protected void fillRow(AbstractMetadataRecord s,
List<Object> rowBuffer) {
rowBuffer.add(s.getUUID());
}
@Override
public SimpleIterator<AbstractMetadataRecord> processQuery(
VDBMetaData vdb, CompositeMetadataStore metadataStore,
BaseIndexInfo<?> ii) {
return processQuery(vdb, metadataStore.getOids(), ii);
}
@Override
protected AbstractMetadataRecord extractRecord(Object val) {
if (val != null) {
return ((RecordHolder)val).getRecord();
}
return null;
}
}, columns) {
@Override
public void fillRow(List<Object> row, Map.Entry<String,String> entry, VDBMetaData vdb, TransformationMetadata metadata, CommandContext cc, SimpleIterator<Map.Entry<String, String>> iter) {
String value = entry.getValue();
Clob clobValue = null;
if (value != null) {
clobValue = new ClobType(new ClobImpl(value));
}
row.add(entry.getKey());
row.add(entry.getValue());
row.add(((ExpandingSimpleIterator<AbstractMetadataRecord, Entry<String, String>>)iter).getCurrentParent().getUUID());
row.add(null);
row.add(clobValue);
}
@Override
protected Collection<Map.Entry<String,String>> getChildren(AbstractMetadataRecord parent) {
return parent.getProperties().entrySet();
}
});
name = SystemAdminTables.TRIGGERS.name();
columns = getColumns(tm, name);
systemAdminTables.put(SystemAdminTables.TRIGGERS, new ChildRecordExtractionTable<Table, Trigger>(new TableSystemTable(1, 2, columns), columns) {
@Override
protected void fillRow(List<Object> row, Trigger record, VDBMetaData vdb, TransformationMetadata metadata, CommandContext cc, SimpleIterator<Trigger> iter) {
Clob clobValue = null;
if (record.body != null) {
clobValue = new ClobType(new ClobImpl(record.body));
}
AbstractMetadataRecord table = ((ExpandingSimpleIterator<AbstractMetadataRecord, Trigger>)iter).getCurrentParent();
row.add(vdb.getName());
row.add(table.getParent().getName());
row.add(table.getName());
row.add(record.name);
row.add(record.triggerType);
row.add(record.triggerEvent);
row.add(record.status);
row.add(clobValue);
row.add(table.getUUID());
}
@Override
protected Collection<Trigger> getChildren(Table table) {
ArrayList<Trigger> cols = new ArrayList<Trigger>();
if (table .isVirtual()) {
if (table.getInsertPlan() != null) {
cols.add(new Trigger("it", TriggerEvent.INSERT.name(), table.isInsertPlanEnabled(), null, table.getInsertPlan())); //$NON-NLS-1$
}
if (table.getUpdatePlan() != null) {
cols.add(new Trigger("ut", TriggerEvent.UPDATE.name(), table.isUpdatePlanEnabled(), null, table.getUpdatePlan())); //$NON-NLS-1$
}
if (table.getDeletePlan() != null) {
cols.add(new Trigger("dt", TriggerEvent.DELETE.name(), table.isDeletePlanEnabled(), null, table.getDeletePlan())); //$NON-NLS-1$
}
}
return cols;
}
});
name = SystemAdminTables.VIEWS.name();
columns = getColumns(tm, name);
systemAdminTables.put(SystemAdminTables.VIEWS, new RecordExtractionTable<Table>(new TableSystemTable(1, 2, columns) {
@Override
protected boolean isValid(Table s, VDBMetaData vdb,
List<Object> rowBuffer, Criteria condition)
throws TeiidProcessingException, TeiidComponentException {
if (s == null || !s.isVirtual()) {
return false;
}
return super.isValid(s, vdb, rowBuffer, condition);
}
}, columns) {
@Override
public void fillRow(List<Object> row, Table table,
VDBMetaData v, TransformationMetadata m, CommandContext cc, SimpleIterator<Table> iter) {
row.add(v.getName());
row.add(table.getParent().getName());
row.add(table.getName());
row.add(new ClobType(new ClobImpl(table.getSelectTransformation())));
row.add(table.getUUID());
}
});
name = SystemAdminTables.STOREDPROCEDURES.name();
columns = getColumns(tm, name);
systemAdminTables.put(SystemAdminTables.STOREDPROCEDURES, new RecordExtractionTable<Procedure>(new ProcedureSystemTable(1, 2, columns) {
@Override
protected boolean isValid(Procedure s, VDBMetaData vdb,
List<Object> rowBuffer, Criteria condition)
throws TeiidProcessingException, TeiidComponentException {
if (s == null || !s.isVirtual()) {
return false;
}
return super.isValid(s, vdb, rowBuffer, condition);
}
}, columns) {
@Override
public void fillRow(List<Object> row, Procedure proc,
VDBMetaData v, TransformationMetadata m, CommandContext cc,
SimpleIterator<Procedure> iter) {
row.add(v.getName());
row.add(proc.getParent().getName());
row.add(proc.getName());
row.add(new ClobType(new ClobImpl(proc.getQueryPlan())));
row.add(proc.getUUID());
}
});
name = SystemTables.COLUMNS.name();
columns = getColumns(tm, name);
systemTables.put(SystemTables.COLUMNS, new ChildRecordExtractionTable<Table, Column>(new TableSystemTable(1, 2, columns), columns) {
@Override
protected void fillRow(List<Object> row, Column column,
VDBMetaData vdb, TransformationMetadata metadata,
CommandContext cc, SimpleIterator<Column> iter) {
Datatype dt = column.getDatatype();
row.add(vdb.getName());
row.add(column.getParent().getParent().getName());
row.add(column.getParent().getName());
row.add(column.getName());
row.add(column.getPosition());
row.add(column.getNameInSource());
row.add(column.getRuntimeType());
row.add(column.getScale());
row.add(column.getLength());
row.add(column.isFixedLength());
row.add(column.isSelectable());
row.add(column.isUpdatable());
row.add(column.isCaseSensitive());
row.add(column.isSigned());
row.add(column.isCurrency());
row.add(column.isAutoIncremented());
row.add(column.getNullType().toString());
row.add(column.getMinimumValue());
row.add(column.getMaximumValue());
row.add(column.getDistinctValues());
row.add(column.getNullValues());
row.add(column.getSearchType().toString());
row.add(column.getFormat());
row.add(column.getDefaultValue());
row.add(dt!=null?dt.getJavaClassName():null);
row.add(column.getPrecision());
row.add(column.getCharOctetLength());
row.add(column.getRadix());
row.add(column.getUUID());
row.add(column.getAnnotation());
row.add(null);
}
@Override
protected Collection<Column> getChildren(Table parent) {
return parent.getColumns();
}
});
name = SystemTables.KEYS.name();
columns = getColumns(tm, name);
systemTables.put(SystemTables.KEYS, new ChildRecordExtractionTable<Table, KeyRecord>(new TableSystemTable(1, 2, columns), columns) {
@Override
protected void fillRow(List<Object> row, KeyRecord key,
VDBMetaData vdb, TransformationMetadata metadata,
CommandContext cc, SimpleIterator<KeyRecord> iter) {
row.add(vdb.getName());
row.add(key.getParent().getParent().getName());
row.add(key.getParent().getName());
row.add(key.getName());
row.add(key.getAnnotation());
row.add(key.getNameInSource());
row.add(key.getType().toString());
row.add(false);
row.add((key instanceof ForeignKey)?((ForeignKey)key).getUniqueKeyID():null);
row.add(key.getUUID());
row.add(null);
}
@Override
protected Collection<KeyRecord> getChildren(Table parent) {
return parent.getAllKeys();
}
});
name = SystemTables.KEYCOLUMNS.name();
columns = getColumns(tm, name);
systemTables.put(SystemTables.KEYCOLUMNS, new ChildRecordExtractionTable<Table, List<?>>(new TableSystemTable(1, 2, columns), columns) {
@Override
protected void fillRow(List<Object> row, List<?> record,
VDBMetaData vdb, TransformationMetadata metadata,
CommandContext cc, SimpleIterator<List<?>> iter) {
row.add(vdb.getName());
KeyRecord key = (KeyRecord) record.get(0);
Column column = (Column) record.get(1);
Integer pos = (Integer) record.get(2);
row.add(key.getParent().getParent().getName());
row.add(key.getParent().getName());
row.add(column.getName());
row.add(key.getName());
row.add(key.getType().toString());
row.add((key instanceof ForeignKey)?((ForeignKey)key).getUniqueKeyID():null);
row.add(key.getUUID());
row.add(pos);
row.add(null);
}
@Override
protected Collection<List<?>> getChildren(Table parent) {
ArrayList<List<?>> cols = new ArrayList<List<?>>();
for (KeyRecord record : parent.getAllKeys()) {
int i = 1;
for (Column col : record.getColumns()) {
cols.add(Arrays.asList(record, col, i++));
}
}
return cols;
}
});
//we key the referencekeycolumns by fk
name = SystemTables.REFERENCEKEYCOLUMNS.name();
columns = getColumns(tm, name);
systemTables.put(SystemTables.REFERENCEKEYCOLUMNS, new ChildRecordExtractionTable<Table, List<?>>(new TableSystemTable(5, 6, columns), columns) {
@Override
protected void fillRow(List<Object> row, List<?> record,
VDBMetaData vdb, TransformationMetadata metadata,
CommandContext cc, SimpleIterator<List<?>> iter) {
row.add(vdb.getName());
ForeignKey key = (ForeignKey) record.get(0);
Table pkTable = key.getReferenceKey().getParent();
Column column = (Column) record.get(1);
Short pos = (Short) record.get(2);
row.add(pkTable.getParent().getName());
row.add(pkTable.getName());
row.add(key.getReferenceKey().getColumns().get(pos-1).getName());
row.add(vdb.getName());
row.add(key.getParent().getParent().getName());
row.add(key.getParent().getName());
row.add(column.getName());
row.add(pos);
row.add(DatabaseMetaData.importedKeyNoAction);
row.add(DatabaseMetaData.importedKeyNoAction);
row.add(key.getName());
row.add(key.getReferenceKey().getName());
row.add(DatabaseMetaData.importedKeyInitiallyDeferred);
}
@Override
protected Collection<List<?>> getChildren(Table parent) {
ArrayList<List<?>> cols = new ArrayList<List<?>>();
for (KeyRecord record : parent.getForeignKeys()) {
short i = 1;
for (Column col : record.getColumns()) {
cols.add(Arrays.asList(record, col, i++));
}
}
return cols;
}
});
name = SystemAdminTables.USAGE.name();
columns = getColumns(tm, name);
systemAdminTables.put(SystemAdminTables.USAGE, new ChildRecordExtractionTable<AbstractMetadataRecord, AbstractMetadataRecord>(
new RecordTable<AbstractMetadataRecord>(new int[] {0}, columns.subList(1, 2)) {
@Override
protected void fillRow(AbstractMetadataRecord s,
List<Object> rowBuffer) {
rowBuffer.add(s.getUUID());
}
@Override
public SimpleIterator<AbstractMetadataRecord> processQuery(
VDBMetaData vdb, CompositeMetadataStore metadataStore,
BaseIndexInfo<?> ii) {
return processQuery(vdb, metadataStore.getOids(), ii);
}
@Override
protected AbstractMetadataRecord extractRecord(Object val) {
if (val != null) {
return ((RecordHolder)val).getRecord();
}
return null;
}
}, columns) {
@Override
public void fillRow(List<Object> row, AbstractMetadataRecord entry, VDBMetaData vdb, TransformationMetadata metadata, CommandContext cc, SimpleIterator<AbstractMetadataRecord> iter) {
AbstractMetadataRecord currentParent = ((ExpandingSimpleIterator<AbstractMetadataRecord, AbstractMetadataRecord>)iter).getCurrentParent();
row.add(vdb.getName());
row.add(currentParent.getUUID());
row.add(getType(currentParent));
row.add(currentParent.getParent().getName());
row.add(currentParent.getName());
row.add(null); //column usage not yet supported
row.add(entry.getUUID());
row.add(getType(entry));
if (entry instanceof Column) {
row.add(entry.getParent().getParent().getName());
row.add(entry.getParent().getName());
row.add(entry.getName());
} else {
row.add(entry.getParent().getName());
row.add(entry.getName());
row.add(null);
}
}
private String getType(AbstractMetadataRecord record) {
if (record instanceof Table) {
Table t = (Table)record;
if (t.getTableType() == Type.Table && t.isVirtual()) {
//TODO: this change should be on the Table object as well
return "View"; //$NON-NLS-1$
}
return t.getTableType().name();
}
if (record instanceof Procedure) {
Procedure p = (Procedure)record;
if (p.isFunction()) {
return p.getType().name();
}
if (p.isVirtual()) {
return "StoredProcedure"; //$NON-NLS-1$
}
return "ForeignProcedure"; //$NON-NLS-1$
}
return record.getClass().getSimpleName();
}
@Override
protected Collection<AbstractMetadataRecord> getChildren(AbstractMetadataRecord parent) {
return parent.getIncomingObjects();
}
});
}
private List<ElementSymbol> getColumns(TransformationMetadata tm,
String name) {
GroupSymbol gs = new GroupSymbol(name);
try {
ResolverUtil.resolveGroup(gs, tm);
List<ElementSymbol> columns = ResolverUtil.resolveElementsInGroup(gs, tm);
return columns;
} catch (TeiidException e) {
throw new TeiidRuntimeException(e);
}
}
public boolean detectChangeEvents() {
return detectChangeEvents;
}
public void setEventDistributor(EventDistributor eventDistributor) {
this.eventDistributor = eventDistributor;
}
public EventDistributor getEventDistributor() {
return eventDistributor;
}
public TupleSource registerRequest(CommandContext context, Command command, String modelName, final RegisterRequestParameter parameterObject) throws TeiidComponentException, TeiidProcessingException {
RequestWorkItem workItem = context.getWorkItem();
Assertion.isNotNull(workItem);
if(CoreConstants.SYSTEM_MODEL.equals(modelName) || CoreConstants.SYSTEM_ADMIN_MODEL.equals(modelName)) {
return processSystemQuery(context, command, workItem.getDqpWorkContext());
}
AtomicRequestMessage aqr = createRequest(workItem, command, modelName, parameterObject.connectorBindingId, parameterObject.nodeID);
aqr.setCommandContext(context);
if (parameterObject.fetchSize > 0) {
aqr.setFetchSize(2*parameterObject.fetchSize);
}
if (parameterObject.limit > 0) {
aqr.setFetchSize(Math.min(parameterObject.limit, aqr.getFetchSize()));
}
Collection<GroupSymbol> accessedGroups = null;
if (context.getDataObjects() != null) {
accessedGroups = GroupCollectorVisitor.getGroupsIgnoreInlineViews(command, false);
for (GroupSymbol gs : accessedGroups) {
context.accessedDataObject(gs.getMetadataID());
}
}
ConnectorManagerRepository cmr = workItem.getDqpWorkContext().getVDB().getAttachment(ConnectorManagerRepository.class);
ConnectorManager connectorManager = cmr.getConnectorManager(aqr.getConnectorName());
if (connectorManager == null) {
//can happen if sources are removed
if (RelationalNodeUtil.hasOutputParams(command)) {
throw new AssertionError("A source is required to execute a procedure returning parameters"); //$NON-NLS-1$
}
LogManager.logDetail(LogConstants.CTX_DQP, "source", aqr.getConnectorName(), "no longer exists, returning dummy results"); //$NON-NLS-1$ //$NON-NLS-2$
return CollectionTupleSource.createNullTupleSource();
}
ConnectorWork work = connectorManager.registerRequest(aqr);
if (!work.isForkable()) {
aqr.setSerial(true);
}
CacheID cid = null;
CacheDirective cd = null;
if (workItem.getRsCache() != null && command.areResultsCachable()) {
CachableVisitor cv = new CachableVisitor();
PreOrPostOrderNavigator.doVisit(command, cv, PreOrPostOrderNavigator.PRE_ORDER, true);
if (cv.cacheable) {
try {
cd = work.getCacheDirective();
} catch (TranslatorException e) {
throw new TeiidProcessingException(QueryPlugin.Event.TEIID30504, e, aqr.getConnectorName() + ": " + e.getMessage()); //$NON-NLS-1$
}
if (cd != null) {
if (cd.getScope() == Scope.NONE) {
parameterObject.doNotCache = true;
} else {
String cmdString = command.toString();
if (cmdString.length() < 100000) { //TODO: this check won't be needed if keys aren't exclusively held in memory
cid = new CacheID(workItem.getDqpWorkContext(), ParseInfo.DEFAULT_INSTANCE, cmdString);
cid.setParameters(cv.parameters);
if (cd.getInvalidation() == null || cd.getInvalidation() == Invalidation.NONE) {
CachedResults cr = workItem.getRsCache().get(cid);
if (cr != null && (cr.getRowLimit() == 0 || (parameterObject.limit > 0 && cr.getRowLimit() >= parameterObject.limit))) {
parameterObject.doNotCache = true;
LogManager.logDetail(LogConstants.CTX_DQP, "Using cache entry for", cid); //$NON-NLS-1$
work.close();
return cr.getResults().createIndexedTupleSource();
}
} else if (cd.getInvalidation() == Invalidation.IMMEDIATE) {
workItem.getRsCache().remove(cid, CachingTupleSource.getDeterminismLevel(cd.getScope()));
}
}
}
} else {