| /* |
| * 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.kylin.cube; |
| |
| import java.io.Serializable; |
| import java.util.Map; |
| |
| import org.apache.kylin.metadata.datatype.DataTypeOrder; |
| import org.apache.kylin.metadata.model.DataModelDesc; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import com.fasterxml.jackson.annotation.JsonAutoDetect; |
| import com.fasterxml.jackson.annotation.JsonAutoDetect.Visibility; |
| import com.fasterxml.jackson.annotation.JsonProperty; |
| import com.google.common.collect.Maps; |
| |
| @JsonAutoDetect(fieldVisibility = Visibility.NONE, getterVisibility = Visibility.NONE, isGetterVisibility = Visibility.NONE, setterVisibility = Visibility.NONE) |
| public class DimensionRangeInfo implements Serializable { |
| |
| private static final Logger logger = LoggerFactory.getLogger(DimensionRangeInfo.class); |
| |
| public static Map<String, DimensionRangeInfo> mergeRangeMap(DataModelDesc model, Map<String, DimensionRangeInfo> m1, |
| Map<String, DimensionRangeInfo> m2) { |
| |
| if (!m1.keySet().equals(m2.keySet())) { |
| logger.warn("Merging incompatible maps of DimensionRangeInfo, keys in m1 " + m1.keySet() + ", keys in m2 " |
| + m2.keySet()); |
| } |
| |
| Map<String, DimensionRangeInfo> result = Maps.newHashMap(); |
| |
| for (String colId : m1.keySet()) { |
| if (!m2.containsKey(colId)) |
| continue; |
| |
| DimensionRangeInfo r1 = m1.get(colId); |
| DimensionRangeInfo r2 = m2.get(colId); |
| |
| DimensionRangeInfo newR; |
| if (r1.getMin() == null && r1.getMax() == null) { |
| newR = r2; // when r1 is all null or has 0 records |
| } else if (r2.getMin() == null && r2.getMax() == null) { |
| newR = r1; // when r2 is all null or has 0 records |
| } else { |
| DataTypeOrder order = model.findColumn(colId).getType().getOrder(); |
| String newMin = order.min(r1.getMin(), r2.getMin()); |
| String newMax = order.max(r1.getMax(), r2.getMax()); |
| newR = new DimensionRangeInfo(newMin, newMax); |
| } |
| |
| result.put(colId, newR); |
| } |
| |
| return result; |
| } |
| |
| // ============================================================================ |
| |
| @JsonProperty("min") |
| private String min; |
| |
| @JsonProperty("max") |
| private String max; |
| |
| public DimensionRangeInfo() {} |
| |
| public DimensionRangeInfo(String min, String max) { |
| if (min == null && max != null || min != null && max == null) |
| throw new IllegalStateException(); |
| |
| this.min = min; |
| this.max = max; |
| } |
| |
| public String getMin() { |
| return min; |
| } |
| |
| public void setMin(String min) { |
| this.min = min; |
| } |
| |
| public String getMax() { |
| return max; |
| } |
| |
| public void setMax(String max) { |
| this.max = max; |
| } |
| |
| @Override |
| public String toString() { |
| return "[" + min + ", " + max + "]"; |
| } |
| |
| } |