org.apache.shardingsphere.sharding.rewrite.token.pojo.ShardingInsertValuesToken Maven / Gradle / Ivy
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* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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 org.apache.shardingsphere.sharding.rewrite.token.pojo;
import org.apache.shardingsphere.underlying.common.rule.DataNode;
import org.apache.shardingsphere.underlying.rewrite.sql.token.pojo.RouteUnitAware;
import org.apache.shardingsphere.underlying.rewrite.sql.token.pojo.generic.InsertValue;
import org.apache.shardingsphere.underlying.rewrite.sql.token.pojo.generic.InsertValuesToken;
import org.apache.shardingsphere.underlying.route.context.RouteUnit;
/**
* Insert values token for sharding.
*/
public final class ShardingInsertValuesToken extends InsertValuesToken implements RouteUnitAware {
public ShardingInsertValuesToken(final int startIndex, final int stopIndex) {
super(startIndex, stopIndex);
}
@Override
public String toString(final RouteUnit routeUnit) {
StringBuilder result = new StringBuilder();
appendInsertValue(routeUnit, result);
result.delete(result.length() - 2, result.length());
return result.toString();
}
private void appendInsertValue(final RouteUnit routeUnit, final StringBuilder stringBuilder) {
for (InsertValue each : getInsertValues()) {
if (isAppend(routeUnit, (ShardingInsertValue) each)) {
stringBuilder.append(each).append(", ");
}
}
}
private boolean isAppend(final RouteUnit routeUnit, final ShardingInsertValue insertValueToken) {
if (insertValueToken.getDataNodes().isEmpty() || null == routeUnit) {
return true;
}
for (DataNode each : insertValueToken.getDataNodes()) {
if (routeUnit.findTableMapper(each.getDataSourceName(), each.getTableName()).isPresent()) {
return true;
}
}
return false;
}
}