48 lines
1.7 KiB
Java
48 lines
1.7 KiB
Java
/*
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* Copyright (c) 2014 Hewlett-Packard Development Company, L.P.
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*
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* Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
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* in compliance with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software distributed under the License
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* is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
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* or implied. See the License for the specific language governing permissions and limitations under
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* the License.
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*/
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package monasca.api.infrastructure.persistence.vertica;
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import java.util.Map;
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import org.skife.jdbi.v2.Handle;
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import monasca.common.persistence.SqlQueries;
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/**
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* Vertica utilities for building metric queries.
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*/
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final class MetricQueries {
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private MetricQueries() {}
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static String buildJoinClauseFor(Map<String, String> dimensions) {
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StringBuilder sbJoin = null;
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if (dimensions != null) {
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sbJoin = new StringBuilder();
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for (int i = 0; i < dimensions.size(); i++)
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sbJoin.append(" inner join MonMetrics.Dimensions d").append(i).append(" on d").append(i)
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.append(".name = :dname").append(i).append(" and d").append(i)
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.append(".value = " + ":dvalue").append(i).append(" and dd.dimension_set_id = d")
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.append(i).append("" + ".dimension_set_id");
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}
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return sbJoin == null ? "" : sbJoin.toString();
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}
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static Map<String, String> dimensionsFor(Handle handle, byte[] dimensionSetId) {
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return SqlQueries.keyValuesFor(handle, "select name, value from MonMetrics.Dimensions "
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+ "where" + " dimension_set_id = ?", dimensionSetId);
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}
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}
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