/*
* Copyright 1999-2017 Alibaba Group Holding Ltd.
*
* Licensed 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 com.alibaba.druid.sql.dialect.postgresql.visitor;
import com.alibaba.druid.sql.ast.SQLLimit;
import com.alibaba.druid.sql.ast.SQLSetQuantifier;
import com.alibaba.druid.sql.ast.expr.SQLBinaryExpr;
import com.alibaba.druid.sql.ast.statement.SQLSelectStatement;
import com.alibaba.druid.sql.ast.statement.SQLTruncateStatement;
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.PGBoxExpr;
import com.alibaba.druid.sql.dialect.postgresql.ast.expr.PGCidrExpr;
import com.alibaba.druid.sql.dialect.postgresql.ast.expr.PGCircleExpr;
import com.alibaba.druid.sql.dialect.postgresql.ast.expr.PGExtractExpr;
import com.alibaba.druid.sql.dialect.postgresql.ast.expr.PGInetExpr;
import com.alibaba.druid.sql.dialect.postgresql.ast.expr.PGIntervalExpr;
import com.alibaba.druid.sql.dialect.postgresql.ast.expr.PGLineSegmentsExpr;
import com.alibaba.druid.sql.dialect.postgresql.ast.expr.PGMacAddrExpr;
import com.alibaba.druid.sql.dialect.postgresql.ast.expr.PGPointExpr;
import com.alibaba.druid.sql.dialect.postgresql.ast.expr.PGPolygonExpr;
import com.alibaba.druid.sql.dialect.postgresql.ast.expr.PGTypeCastExpr;
import com.alibaba.druid.sql.dialect.postgresql.ast.stmt.PGDeleteStatement;
import com.alibaba.druid.sql.dialect.postgresql.ast.stmt.PGFunctionTableSource;
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.PGShowStatement;
import com.alibaba.druid.sql.dialect.postgresql.ast.stmt.PGUpdateStatement;
import com.alibaba.druid.sql.dialect.postgresql.ast.stmt.PGValuesQuery;
import com.alibaba.druid.sql.visitor.SQLASTOutputVisitor;
public class PGOutputVisitor extends SQLASTOutputVisitor implements PGASTVisitor {
public PGOutputVisitor(Appendable appender){
super(appender);
}
public PGOutputVisitor(Appendable appender, boolean parameterized){
super(appender, parameterized);
}
@Override
public void endVisit(WindowClause x) {
}
@Override
public boolean visit(WindowClause x) {
print0(ucase ? "WINDOW " : "window ");
x.getName().accept(this);
print0(ucase ? " AS " : " as ");
for (int i = 0; i < x.getDefinition().size(); ++i) {
if (i != 0) {
println(", ");
}
print('(');
x.getDefinition().get(i).accept(this);
print(')');
}
return false;
}
@Override
public void endVisit(FetchClause x) {
}
@Override
public boolean visit(FetchClause x) {
print0(ucase ? "FETCH " : "fetch ");
if (FetchClause.Option.FIRST.equals(x.getOption())) {
print0(ucase ? "FIRST " : "first ");
} else if (FetchClause.Option.NEXT.equals(x.getOption())) {
print0(ucase ? "NEXT " : "next ");
}
x.getCount().accept(this);
print0(ucase ? " ROWS ONLY" : " rows only");
return false;
}
@Override
public void endVisit(ForClause x) {
}
@Override
public boolean visit(ForClause x) {
print0(ucase ? "FOR " : "for ");
if (ForClause.Option.UPDATE.equals(x.getOption())) {
print0(ucase ? "UPDATE " : "update ");
} else if (ForClause.Option.SHARE.equals(x.getOption())) {
print0(ucase ? "SHARE " : "share ");
}
if (x.getOf().size() > 0) {
for (int i = 0; i < x.getOf().size(); ++i) {
if (i != 0) {
println(", ");
}
x.getOf().get(i).accept(this);
}
}
if (x.isNoWait()) {
print0(ucase ? " NOWAIT" : " nowait");
}
return false;
}
@Override
public void endVisit(PGWithQuery x) {
}
@Override
public boolean visit(PGWithQuery x) {
x.getName().accept(this);
if (x.getColumns().size() > 0) {
print0(" (");
printAndAccept(x.getColumns(), ", ");
print(')');
}
println();
print0(ucase ? "AS" : "as");
println();
print('(');
incrementIndent();
println();
x.getQuery().accept(this);
decrementIndent();
println();
print(')');
return false;
}
@Override
public void endVisit(PGWithClause x) {
}
@Override
public boolean visit(PGWithClause x) {
print0(ucase ? "WITH" : "with");
if (x.isRecursive()) {
print0(ucase ? " RECURSIVE " : " recursive ");
}
incrementIndent();
println();
printlnAndAccept(x.getWithQuery(), ", ");
decrementIndent();
return false;
}
public boolean visit(PGSelectQueryBlock x) {
if (x.getWith() != null) {
x.getWith().accept(this);
println();
}
print0(ucase ? "SELECT " : "select ");
if (SQLSetQuantifier.ALL == x.getDistionOption()) {
print0(ucase ? "ALL " : "all ");
} else if (SQLSetQuantifier.DISTINCT == x.getDistionOption()) {
print0(ucase ? "DISTINCT " : "distinct ");
if (x.getDistinctOn() != null && x.getDistinctOn().size() > 0) {
print0(ucase ? "ON " : "on ");
printAndAccept(x.getDistinctOn(), ", ");
}
}
printSelectList(x.getSelectList());
if (x.getInto() != null) {
println();
if (x.getIntoOption() != null) {
print0(x.getIntoOption().name());
print(' ');
}
print0(ucase ? "INTO " : "into ");
x.getInto().accept(this);
}
if (x.getFrom() != null) {
println();
print0(ucase ? "FROM " : "from ");
x.getFrom().accept(this);
}
if (x.getWhere() != null) {
println();
print0(ucase ? "WHERE " : "where ");
x.getWhere().setParent(x);
x.getWhere().accept(this);
}
if (x.getGroupBy() != null) {
println();
x.getGroupBy().accept(this);
}
if (x.getWindow() != null) {
println();
x.getWindow().accept(this);
}
if (x.getOrderBy() != null) {
println();
x.getOrderBy().accept(this);
}
if (x.getLimit() != null) {
println();
x.getLimit().accept(this);
}
if (x.getFetch() != null) {
println();
x.getFetch().accept(this);
}
if (x.getForClause() != null) {
println();
x.getForClause().accept(this);
}
return false;
}
@Override
public boolean visit(SQLTruncateStatement x) {
print0(ucase ? "TRUNCATE TABLE " : "truncate table ");
if (x.isOnly()) {
print0(ucase ? "ONLY " : "only ");
}
printlnAndAccept(x.getTableSources(), ", ");
if (x.getRestartIdentity() != null) {
if (x.getRestartIdentity().booleanValue()) {
print0(ucase ? " RESTART IDENTITY" : " restart identity");
} else {
print0(ucase ? " CONTINUE IDENTITY" : " continue identity");
}
}
if (x.getCascade() != null) {
if (x.getCascade().booleanValue()) {
print0(ucase ? " CASCADE" : " cascade");
} else {
print0(ucase ? " RESTRICT" : " restrict");
}
}
return false;
}
@Override
public void endVisit(PGDeleteStatement x) {
}
@Override
public boolean visit(PGDeleteStatement x) {
if (x.getWith() != null) {
x.getWith().accept(this);
println();
}
print0(ucase ? "DELETE FROM " : "delete from ");
if (x.isOnly()) {
print0(ucase ? "ONLY " : "only ");
}
printTableSourceExpr(x.getTableName());
if (x.getAlias() != null) {
print0(ucase ? " AS " : " as ");
print0(x.getAlias());
}
if (x.getUsing().size() > 0) {
println();
print0(ucase ? "USING " : "using ");
printAndAccept(x.getUsing(), ", ");
}
if (x.getWhere() != null) {
println();
print0(ucase ? "WHERE " : "where ");
incrementIndent();
x.getWhere().setParent(x);
x.getWhere().accept(this);
decrementIndent();
}
if (x.isReturning()) {
println();
print0(ucase ? "RETURNING *" : "returning *");
}
return false;
}
@Override
public void endVisit(PGInsertStatement x) {
}
@Override
public boolean visit(PGInsertStatement x) {
if (x.getWith() != null) {
x.getWith().accept(this);
println();
}
print0(ucase ? "INSERT INTO " : "insert into ");
x.getTableSource().accept(this);
printInsertColumns(x.getColumns());
if (x.getValues() != null) {
println();
print0(ucase ? "VALUES " : "values ");
printlnAndAccept(x.getValuesList(), ", ");
} else {
if (x.getQuery() != null) {
println();
x.getQuery().accept(this);
}
}
if (x.getReturning() != null) {
println();
print0(ucase ? "RETURNING " : "returning ");
x.getReturning().accept(this);
}
return false;
}
@Override
public void endVisit(PGSelectStatement x) {
}
@Override
public boolean visit(PGSelectStatement x) {
if (x.getWith() != null) {
x.getWith().accept(this);
println();
}
return visit((SQLSelectStatement) x);
}
@Override
public void endVisit(PGUpdateStatement x) {
}
@Override
public boolean visit(PGUpdateStatement x) {
if (x.getWith() != null) {
x.getWith().accept(this);
println();
}
print0(ucase ? "UPDATE " : "update ");
if (x.isOnly()) {
print0(ucase ? "ONLY " : "only ");
}
x.getTableSource().accept(this);
println();
print0(ucase ? "SET " : "set ");
for (int i = 0, size = x.getItems().size(); i < size; ++i) {
if (i != 0) {
print0(", ");
}
x.getItems().get(i).accept(this);
}
if (x.getFrom() != null) {
println();
print0(ucase ? "FROM " : "from ");
x.getFrom().accept(this);
}
if (x.getWhere() != null) {
println();
print0(ucase ? "WHERE " : "where ");
incrementIndent();
x.getWhere().setParent(x);
x.getWhere().accept(this);
decrementIndent();
}
if (x.getReturning().size() > 0) {
println();
print0(ucase ? "RETURNING " : "returning ");
printAndAccept(x.getReturning(), ", ");
}
return false;
}
@Override
public void endVisit(PGSelectQueryBlock x) {
}
@Override
public boolean visit(PGFunctionTableSource x) {
x.getExpr().accept(this);
if (x.getAlias() != null) {
print0(ucase ? " AS " : " as ");
print0(x.getAlias());
}
if (x.getParameters().size() > 0) {
print('(');
printAndAccept(x.getParameters(), ", ");
print(')');
}
return false;
}
@Override
public void endVisit(PGFunctionTableSource x) {
}
@Override
public void endVisit(PGTypeCastExpr x) {
}
@Override
public boolean visit(PGTypeCastExpr x) {
x.getExpr().accept(this);
print0("::");
x.getDataType().accept(this);
return false;
}
@Override
public void endVisit(PGValuesQuery x) {
}
@Override
public boolean visit(PGValuesQuery x) {
print0(ucase ? "VALUES(" : "values(");
printAndAccept(x.getValues(), ", ");
print(')');
return false;
}
@Override
public void endVisit(PGExtractExpr x) {
}
@Override
public boolean visit(PGExtractExpr x) {
print0(ucase ? "EXTRACT (" : "extract (");
print0(x.getField().name());
print0(ucase ? " FROM " : " from ");
x.getSource().accept(this);
print(')');
return false;
}
@Override
public boolean visit(PGBoxExpr x) {
print0(ucase ? "BOX " : "box ");
x.getValue().accept(this);
return false;
}
@Override
public void endVisit(PGBoxExpr x) {
}
@Override
public boolean visit(PGPointExpr x) {
print0(ucase ? "POINT " : "point ");
x.getValue().accept(this);
return false;
}
@Override
public void endVisit(PGPointExpr x) {
}
@Override
public boolean visit(PGMacAddrExpr x) {
print0("macaddr ");
x.getValue().accept(this);
return false;
}
@Override
public void endVisit(PGMacAddrExpr x) {
}
@Override
public boolean visit(PGInetExpr x) {
print0("inet ");
x.getValue().accept(this);
return false;
}
@Override
public void endVisit(PGInetExpr x) {
}
@Override
public boolean visit(PGCidrExpr x) {
print0("cidr ");
x.getValue().accept(this);
return false;
}
@Override
public void endVisit(PGCidrExpr x) {
}
@Override
public boolean visit(PGPolygonExpr x) {
print0("polygon ");
x.getValue().accept(this);
return false;
}
@Override
public void endVisit(PGPolygonExpr x) {
}
@Override
public boolean visit(PGCircleExpr x) {
print0("circle ");
x.getValue().accept(this);
return false;
}
@Override
public void endVisit(PGCircleExpr x) {
}
@Override
public boolean visit(PGLineSegmentsExpr x) {
print0("lseg ");
x.getValue().accept(this);
return false;
}
@Override
public void endVisit(PGIntervalExpr x) {
}
@Override
public boolean visit(PGIntervalExpr x) {
print0(ucase ? "INTERVAL " : "interval ");
x.getValue().accept(this);
return true;
}
@Override
public void endVisit(PGLineSegmentsExpr x) {
}
@Override
public boolean visit(SQLBinaryExpr x) {
print0(ucase ? "B'" : "b'");
print0(x.getValue());
print('\'');
return false;
}
@Override
public void endVisit(PGShowStatement x) {
}
@Override
public boolean visit(PGShowStatement x) {
print0(ucase ? "SHOW " : "show ");
x.getExpr().accept(this);
return false;
}
public boolean visit(SQLLimit x) {
print0(ucase ? "LIMIT " : "limit ");
x.getRowCount().accept(this);
if (x.getOffset() != null) {
print0(ucase ? " OFFSET " : " offset ");
x.getOffset().accept(this);
}
return false;
}
}