monasca-api/java/src/main/java/monasca/api/infrastructure/persistence/SubAlarmDefinitionQueries.java

65 lines
2.0 KiB
Java

/*
* (C) Copyright 2014,2016 Hewlett Packard Enterprise Development Company LP
*
* 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 monasca.api.infrastructure.persistence;
import com.google.common.base.Strings;
import org.skife.jdbi.v2.Query;
import java.util.Map;
/**
* Utilities for building sub alarm queries.
*/
public final class SubAlarmDefinitionQueries {
private SubAlarmDefinitionQueries() {}
public static String buildJoinClauseFor(Map<String, String> dimensions) {
StringBuilder sbJoin = new StringBuilder();
if (dimensions != null) {
sbJoin = new StringBuilder();
int i = 0;
for (String dimension_key : dimensions.keySet()) {
sbJoin.append(" inner join sub_alarm_definition_dimension d").append(i).append(" on d")
.append(i)
.append(".dimension_name = :dname").append(i);
if (!Strings.isNullOrEmpty(dimensions.get(dimension_key))) {
sbJoin.append(" and d").append(i)
.append(".value = :dvalue").append(i);
}
sbJoin.append(" and dim.sub_alarm_definition_id = d")
.append(i).append(".sub_alarm_definition_id");
i++;
}
}
return sbJoin.toString();
}
public static void bindDimensionsToQuery(Query query, Map<String, String> dimensions) {
if (dimensions != null) {
int i = 0;
for (Map.Entry<String, String> entry: dimensions.entrySet()) {
query.bind("dname" + i, entry.getKey());
query.bind("dvalue" + i, entry.getValue());
i++;
}
}
}
}