package com.alibaba.druid.sql.dialect.postgresql.visitor;
import java.util.Map;
import com.alibaba.druid.sql.ast.SQLName;
import com.alibaba.druid.sql.ast.expr.SQLIdentifierExpr;
import com.alibaba.druid.sql.ast.statement.SQLSelectQueryBlock;
import com.alibaba.druid.sql.ast.statement.SQLSelectStatement;
import com.alibaba.druid.sql.ast.statement.SQLTruncateStatement;
import com.alibaba.druid.sql.dialect.postgresql.ast.PGAggregateExpr;
import com.alibaba.druid.sql.dialect.postgresql.ast.PGWithClause;
import com.alibaba.druid.sql.dialect.postgresql.ast.PGWithQuery;
import com.alibaba.druid.sql.dialect.postgresql.ast.expr.PGAnalytic;
import com.alibaba.druid.sql.dialect.postgresql.ast.stmt.PGDeleteStatement;
import com.alibaba.druid.sql.dialect.postgresql.ast.stmt.PGInsertStatement;
import com.alibaba.druid.sql.dialect.postgresql.ast.stmt.PGSelectQueryBlock;
import com.alibaba.druid.sql.dialect.postgresql.ast.stmt.PGSelectQueryBlock.FetchClause;
import com.alibaba.druid.sql.dialect.postgresql.ast.stmt.PGSelectQueryBlock.ForClause;
import com.alibaba.druid.sql.dialect.postgresql.ast.stmt.PGSelectQueryBlock.WindowClause;
import com.alibaba.druid.sql.dialect.postgresql.ast.stmt.PGSelectStatement;
import com.alibaba.druid.sql.dialect.postgresql.ast.stmt.PGTruncateStatement;
import com.alibaba.druid.sql.dialect.postgresql.ast.stmt.PGUpdateStatement;
import com.alibaba.druid.sql.visitor.SchemaStatVisitor;
import com.alibaba.druid.stat.TableStat;
import com.alibaba.druid.stat.TableStat.Mode;
public class PGSchemaStatVisitor extends SchemaStatVisitor implements PGASTVisitor {
@Override
public void endVisit(WindowClause x) {
}
@Override
public boolean visit(WindowClause x) {
return true;
}
@Override
public void endVisit(FetchClause x) {
}
@Override
public boolean visit(FetchClause x) {
return true;
}
@Override
public void endVisit(ForClause x) {
}
@Override
public boolean visit(ForClause x) {
return true;
}
@Override
public void endVisit(PGWithQuery x) {
}
@Override
public boolean visit(PGWithQuery x) {
Map<String, String> aliasMap = getAliasMap();
if (aliasMap != null) {
String alias = null;
if (x.getName() != null) {
alias = x.getName().toString();
}
if (alias != null) {
aliasMap.put(alias, null);
subQueryMap.put(alias, x.getQuery());
}
}
x.getQuery().accept(this);
return false;
}
@Override
public void endVisit(PGWithClause x) {
}
@Override
public boolean visit(PGWithClause x) {
return true;
}
@Override
public void endVisit(PGTruncateStatement x) {
}
@Override
public boolean visit(PGTruncateStatement x) {
this.visit((SQLTruncateStatement) x);
return false;
}
@Override
public void endVisit(PGDeleteStatement x) {
}
@Override
public boolean visit(PGDeleteStatement x) {
if (x.getWith() != null) {
x.getWith().accept(this);
}
setAliasMap();
for (SQLName name : x.getUsing()) {
String ident = name.toString();
TableStat stat = getTableStat(ident);
stat.incrementSelectCount();
Map<String, String> aliasMap = getAliasMap();
if (aliasMap != null) {
aliasMap.put(ident, ident);
}
}
x.putAttribute("_original_use_mode", getMode());
setMode(x, Mode.Delete);
String ident = ((SQLIdentifierExpr) x.getTableName()).getName();
setCurrentTable(ident);
TableStat stat = getTableStat(ident, x.getAlias());
stat.incrementDeleteCount();
accept(x.getWhere());
return false;
}
@Override
public void endVisit(PGInsertStatement x) {
}
@Override
public boolean visit(PGInsertStatement x) {
setAliasMap();
if (x.getWith() != null) {
x.getWith().accept(this);
}
x.putAttribute("_original_use_mode", getMode());
setMode(x, Mode.Insert);
String originalTable = getCurrentTable();
if (x.getTableName() instanceof SQLName) {
String ident = ((SQLName) x.getTableName()).toString();
setCurrentTable(ident);
x.putAttribute("_old_local_", originalTable);
TableStat stat = getTableStat(ident);
stat.incrementInsertCount();
Map<String, String> aliasMap = getAliasMap();
if (aliasMap != null) {
if (x.getAlias() != null) {
aliasMap.put(x.getAlias(), ident);
}
aliasMap.put(ident, ident);
}
}
accept(x.getColumns());
accept(x.getQuery());
return false;
}
@Override
public void endVisit(PGSelectStatement x) {
}
@Override
public boolean visit(PGSelectStatement x) {
if (x.getWith() != null) {
x.getWith().accept(this);
}
return visit((SQLSelectStatement) x);
}
@Override
public void endVisit(PGUpdateStatement x) {
}
@Override
public boolean visit(PGUpdateStatement x) {
Map<String, String> oldAliasMap = getAliasMap();
setAliasMap();
if (x.getWith() != null) {
x.getWith().accept(this);
}
String ident = x.getTableName().toString();
setCurrentTable(ident);
TableStat stat = getTableStat(ident);
stat.incrementUpdateCount();
Map<String, String> aliasMap = getAliasMap();
aliasMap.put(ident, ident);
accept(x.getItems());
accept(x.getWhere());
setAliasMap(oldAliasMap);
return false;
}
@Override
public void endVisit(PGSelectQueryBlock x) {
}
@Override
public boolean visit(PGSelectQueryBlock x) {
return this.visit((SQLSelectQueryBlock) x);
}
@Override
public void endVisit(PGAggregateExpr x) {
}
@Override
public boolean visit(PGAggregateExpr x) {
return false;
}
@Override
public void endVisit(PGAnalytic x) {
}
@Override
public boolean visit(PGAnalytic x) {
return false;
}
}