// Copyright (c) Microsoft Corporation. All rights reserved. // Licensed under the MIT License. package com.azure.cosmos.implementation.routing; import java.util.HashMap; import java.util.Locale; import java.util.Map; import java.util.function.BiFunction; import java.util.function.Function; // TODO: commons-collections lib has CaseInsensitiveHashMap we should switch to that. // https://commons.apache.org/proper/commons-collections/javadocs/api-3.2.2/org/apache/commons/collections/map/CaseInsensitiveMap.html public class CaseInsensitiveHashMap<V> extends HashMap<String, V> { private static final long serialVersionUID = -3187010666577892790L; private static String safeToLower(String key) { return key != null ? key.toLowerCase(Locale.ROOT) : null; } @Override public V get(Object key) { return super.get(safeToLower((String) key)); } @Override public void putAll(Map<? extends String, ? extends V> m) { super.putAll(m); } @Override public V put(String key, V value) { return super.put(safeToLower(key), value); } @Override public V putIfAbsent(String key, V value) { return super.putIfAbsent(safeToLower(key), value); } @Override public V compute(String key, BiFunction<? super String, ? super V, ? extends V> remappingFunction) { return super.compute(safeToLower(key), remappingFunction); } @Override public V computeIfAbsent(String key, Function<? super String, ? extends V> mappingFunction) { return super.computeIfAbsent(safeToLower(key), mappingFunction); } @Override public V computeIfPresent(String key, BiFunction<? super String, ? super V, ? extends V> remappingFunction) { return super.computeIfPresent(safeToLower(key), remappingFunction); } @Override public boolean containsKey(Object key) { return super.containsKey(safeToLower((String) key)); } }
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