com.hazelcast.jet.sql.impl.parse.SqlCreateView Maven / Gradle / Ivy
/*
* Copyright 2021 Hazelcast Inc.
*
* Licensed under the Hazelcast Community License (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://hazelcast.com/hazelcast-community-license
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.hazelcast.jet.sql.impl.parse;
import com.hazelcast.com.google.common.collect.ImmutableList;
import com.hazelcast.jet.sql.impl.validate.operators.special.HazelcastCreateViewOperator;
import com.hazelcast.org.apache.calcite.sql.SqlCreate;
import com.hazelcast.org.apache.calcite.sql.SqlIdentifier;
import com.hazelcast.org.apache.calcite.sql.SqlNode;
import com.hazelcast.org.apache.calcite.sql.SqlOperator;
import com.hazelcast.org.apache.calcite.sql.SqlWriter;
import com.hazelcast.org.apache.calcite.sql.parser.SqlParserPos;
import com.hazelcast.org.apache.calcite.sql.validate.SqlValidator;
import com.hazelcast.org.apache.calcite.sql.validate.SqlValidatorScope;
import java.util.List;
import static com.hazelcast.jet.sql.impl.parse.ParserResource.RESOURCE;
import static com.hazelcast.jet.sql.impl.validate.ValidationUtil.isCatalogObjectNameValid;
/**
* AST node representing a CREATE VIEW statement.
*
* @since 5.1
*/
public class SqlCreateView extends SqlCreate {
private static final SqlOperator CREATE_VIEW = new HazelcastCreateViewOperator();
private final SqlIdentifier name;
private SqlNode query;
public SqlCreateView(SqlParserPos pos, boolean replace, boolean ifNotExists, SqlIdentifier name, SqlNode query) {
super(CREATE_VIEW, pos, replace, ifNotExists);
this.name = name;
this.query = query;
}
public String name() {
return name.toString();
}
public SqlNode getQuery() {
return query;
}
@Override
public List getOperandList() {
return ImmutableList.of(name, query);
}
@Override
public SqlOperator getOperator() {
return CREATE_VIEW;
}
/**
* Copied from {@link com.hazelcast.org.apache.calcite.sql.ddl.SqlCreateView}
*/
@Override
public void unparse(SqlWriter writer, int leftPrec, int rightPrec) {
if (getReplace()) {
writer.keyword("CREATE OR REPLACE");
} else {
writer.keyword("CREATE");
}
writer.keyword("VIEW");
if (ifNotExists) {
writer.keyword("IF NOT EXISTS");
}
name.unparse(writer, leftPrec, rightPrec);
writer.keyword("AS");
writer.newlineAndIndent();
query.unparse(writer, 0, 0);
}
@Override
public void validate(SqlValidator validator, SqlValidatorScope scope) {
if (getReplace() && ifNotExists) {
throw validator.newValidationError(this, RESOURCE.orReplaceWithIfNotExistsNotSupported());
}
if (!isCatalogObjectNameValid(name)) {
throw validator.newValidationError(name, RESOURCE.viewIncorrectSchema());
}
query = validator.validate(query);
}
}
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