package com.alvazan.orm.layer5.query;
import java.util.ArrayList;
import java.util.List;
import javax.inject.Inject;
import javax.inject.Named;
import javax.inject.Provider;
import com.alvazan.orm.api.exc.ParseException;
import com.alvazan.orm.api.z5api.QueryParser;
import com.alvazan.orm.api.z5api.SpiMetaQuery;
import com.alvazan.orm.api.z8spi.MetaLoader;
import com.alvazan.orm.api.z8spi.NoSqlRawSession;
import com.alvazan.orm.api.z8spi.meta.DboDatabaseMeta;
import com.alvazan.orm.api.z8spi.meta.ViewInfo;
import com.alvazan.orm.parser.antlr.ExpressionNode;
import com.alvazan.orm.parser.antlr.InfoForWiring;
import com.alvazan.orm.parser.antlr.MetaFacade;
import com.alvazan.orm.parser.antlr.ParseQueryException;
import com.alvazan.orm.parser.antlr.ScannerSql;
public class ScannerForQuery implements QueryParser {
@Inject
@Named("logger")
private NoSqlRawSession rawSession;
@Inject
private Provider<SpiMetaQueryImpl> factory;
@Inject
private DboDatabaseMeta metaInfo;
@Inject
private ScannerSql compiler;
@Override
public SpiMetaQuery parseQueryForAdHoc(String query, MetaLoader mgr) {
SpiMetaQuery metaQuery = newsetupByVisitingTree(query, null, mgr, "Query="+query+". ");
return metaQuery;
}
@Override
public SpiMetaQuery parseQueryForOrm(String query, String targetTable, String errorMsg) {
return newsetupByVisitingTree(query, targetTable, null, errorMsg);
}
private SpiMetaQuery newsetupByVisitingTree(String query, String targetTable, MetaLoader mgr, String errorMsg) {
try {
return newsetupByVisitingTreeImpl(query, targetTable, mgr, errorMsg);
} catch(ParseQueryException e) {
String msg = errorMsg+" failed to parse. Specific reason="+e.getMessage();
throw new ParseException(msg, e);
} catch(RuntimeException e) {
throw new ParseException(errorMsg+" failed to compile. See chained exception for cause", e);
}
}
private SpiMetaQuery newsetupByVisitingTreeImpl(String query, String targetTable, MetaLoader mgr, String errorMsg) {
SpiMetaQueryImpl spiMetaQuery = factory.get();
InfoForWiring wiring = new InfoForWiring(query, targetTable);
MetaFacade facade = new MetaFacadeImpl(mgr, metaInfo);
ExpressionNode newTree = compiler.compileSql(query, wiring, facade);
List<ViewInfo> allViews = wiring.getAllViews();
List<ViewInfo> joinedViews = wiring.getJoinedViews();
List<ViewInfo> notYetJoinedViews = new ArrayList<ViewInfo>();
for(ViewInfo view : allViews) {
if(!joinedViews.contains(view))
notYetJoinedViews.add(view);
}
spiMetaQuery.setASTTree(newTree, joinedViews, notYetJoinedViews);
spiMetaQuery.setQuery(query);
spiMetaQuery.setParameterFieldMap(wiring.getParameterFieldMap());
spiMetaQuery.setUpdateList(wiring.getUpdateList());
spiMetaQuery.setQueryType(wiring.getQueryType());
return spiMetaQuery;
}
@Override
public void close() {
rawSession.close();
}
}