| /* |
| * 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.druid.query.topn; |
| |
| import com.fasterxml.jackson.annotation.JsonCreator; |
| import com.fasterxml.jackson.annotation.JsonValue; |
| import com.google.common.base.Function; |
| import com.google.common.collect.Lists; |
| import org.apache.druid.java.util.common.IAE; |
| |
| import javax.annotation.Nullable; |
| import java.util.ArrayList; |
| import java.util.Iterator; |
| import java.util.List; |
| import java.util.Map; |
| |
| /** |
| */ |
| public class TopNResultValue implements Iterable<DimensionAndMetricValueExtractor> |
| { |
| private final List<DimensionAndMetricValueExtractor> value; |
| |
| @JsonCreator |
| public TopNResultValue(List<?> value) |
| { |
| this.value = (value == null) ? new ArrayList<>() : Lists.transform( |
| value, |
| new Function<Object, DimensionAndMetricValueExtractor>() |
| { |
| @Override |
| public DimensionAndMetricValueExtractor apply(@Nullable Object input) |
| { |
| if (input instanceof Map) { |
| return new DimensionAndMetricValueExtractor((Map) input); |
| } else if (input instanceof DimensionAndMetricValueExtractor) { |
| return (DimensionAndMetricValueExtractor) input; |
| } else { |
| throw new IAE("Unknown type for input[%s]", input.getClass()); |
| } |
| } |
| } |
| ); |
| } |
| |
| @JsonValue |
| public List<DimensionAndMetricValueExtractor> getValue() |
| { |
| return value; |
| } |
| |
| @Override |
| public Iterator<DimensionAndMetricValueExtractor> iterator() |
| { |
| return value.iterator(); |
| } |
| |
| @Override |
| public String toString() |
| { |
| return "TopNResultValue{" + |
| "value=" + value + |
| '}'; |
| } |
| |
| @Override |
| public boolean equals(Object o) |
| { |
| if (this == o) { |
| return true; |
| } |
| if (o == null || getClass() != o.getClass()) { |
| return false; |
| } |
| |
| TopNResultValue that = (TopNResultValue) o; |
| |
| if (value != null ? !value.equals(that.value) : that.value != null) { |
| return false; |
| } |
| |
| return true; |
| } |
| |
| @Override |
| public int hashCode() |
| { |
| return value != null ? value.hashCode() : 0; |
| } |
| } |