/*
* 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.sqlserver.visitor;
import java.util.Map;
import com.alibaba.druid.sql.ast.SQLDeclareItem;
import com.alibaba.druid.sql.ast.SQLExpr;
import com.alibaba.druid.sql.ast.statement.SQLInsertStatement;
import com.alibaba.druid.sql.ast.statement.SQLSelectQueryBlock;
import com.alibaba.druid.sql.dialect.sqlserver.ast.SQLServerOutput;
import com.alibaba.druid.sql.dialect.sqlserver.ast.SQLServerSelect;
import com.alibaba.druid.sql.dialect.sqlserver.ast.SQLServerSelectQueryBlock;
import com.alibaba.druid.sql.dialect.sqlserver.ast.SQLServerTop;
import com.alibaba.druid.sql.dialect.sqlserver.ast.expr.SQLServerObjectReferenceExpr;
import com.alibaba.druid.sql.dialect.sqlserver.ast.stmt.SQLServerCommitStatement;
import com.alibaba.druid.sql.dialect.sqlserver.ast.stmt.SQLServerDeclareStatement;
import com.alibaba.druid.sql.dialect.sqlserver.ast.stmt.SQLServerExecStatement;
import com.alibaba.druid.sql.dialect.sqlserver.ast.stmt.SQLServerExecStatement.SQLServerParameter;
import com.alibaba.druid.sql.dialect.sqlserver.ast.stmt.SQLServerInsertStatement;
import com.alibaba.druid.sql.dialect.sqlserver.ast.stmt.SQLServerRollbackStatement;
import com.alibaba.druid.sql.dialect.sqlserver.ast.stmt.SQLServerSetStatement;
import com.alibaba.druid.sql.dialect.sqlserver.ast.stmt.SQLServerSetTransactionIsolationLevelStatement;
import com.alibaba.druid.sql.dialect.sqlserver.ast.stmt.SQLServerUpdateStatement;
import com.alibaba.druid.sql.dialect.sqlserver.ast.stmt.SQLServerWaitForStatement;
import com.alibaba.druid.sql.visitor.SchemaStatVisitor;
import com.alibaba.druid.stat.TableStat;
import com.alibaba.druid.util.JdbcUtils;
public class SQLServerSchemaStatVisitor extends SchemaStatVisitor implements SQLServerASTVisitor {
@Override
public String getDbType() {
return JdbcUtils.SQL_SERVER;
}
@Override
public boolean visit(SQLServerSelectQueryBlock x) {
return visit((SQLSelectQueryBlock) x);
}
@Override
public void endVisit(SQLServerSelectQueryBlock x) {
endVisit((SQLSelectQueryBlock) x);
}
@Override
public boolean visit(SQLServerTop x) {
return false;
}
@Override
public void endVisit(SQLServerTop x) {
}
@Override
public boolean visit(SQLServerObjectReferenceExpr x) {
return false;
}
@Override
public void endVisit(SQLServerObjectReferenceExpr x) {
}
@Override
public boolean visit(SQLServerInsertStatement x) {
this.visit((SQLInsertStatement) x);
return false;
}
@Override
public void endVisit(SQLServerInsertStatement x) {
this.endVisit((SQLInsertStatement) x);
}
@Override
public boolean visit(SQLServerUpdateStatement x) {
setAliasMap();
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.getFrom());
accept(x.getWhere());
return false;
}
@Override
public void endVisit(SQLServerUpdateStatement x) {
}
@Override
public boolean visit(SQLServerExecStatement x) {
return false;
}
@Override
public void endVisit(SQLServerExecStatement x) {
}
@Override
public boolean visit(SQLServerSetTransactionIsolationLevelStatement x) {
return false;
}
@Override
public void endVisit(SQLServerSetTransactionIsolationLevelStatement x) {
}
@Override
public boolean visit(SQLServerSetStatement x) {
return false;
}
@Override
public void endVisit(SQLServerSetStatement x) {
}
@Override
public boolean visit(SQLServerOutput x) {
return false;
}
@Override
public void endVisit(SQLServerOutput x) {
}
@Override
public boolean visit(SQLServerDeclareStatement x) {
for (SQLDeclareItem item : x.getItems()) {
item.setParent(x);
SQLExpr name = item.getName();
this.variants.put(name.toString(), name);
}
return true;
}
@Override
public void endVisit(SQLServerDeclareStatement x) {
}
@Override
public boolean visit(SQLServerSelect x) {
return super.visit(x);
}
@Override
public void endVisit(SQLServerSelect x) {
}
@Override
public boolean visit(SQLServerCommitStatement x) {
return true;
}
@Override
public void endVisit(SQLServerCommitStatement x) {
}
@Override
public boolean visit(SQLServerRollbackStatement x) {
return true;
}
@Override
public void endVisit(SQLServerRollbackStatement x) {
}
@Override
public boolean visit(SQLServerWaitForStatement x) {
return true;
}
@Override
public void endVisit(SQLServerWaitForStatement x) {
}
@Override
public boolean visit(SQLServerParameter x) {
// TODO Auto-generated method stub
return false;
}
@Override
public void endVisit(SQLServerParameter x) {
// TODO Auto-generated method stub
}
}