commonMain.io.ktor.util.CaseInsensitiveMap.kt Maven / Gradle / Ivy
/*
* Copyright 2014-2021 JetBrains s.r.o and contributors. Use of this source code is governed by the Apache 2.0 license.
*/
package io.ktor.util
/**
* A map with case-insensitive [String] keys
*/
public class CaseInsensitiveMap : MutableMap {
private val delegate = mutableMapOf()
override val size: Int get() = delegate.size
override fun containsKey(key: String): Boolean = delegate.containsKey(CaseInsensitiveString(key))
override fun containsValue(value: Value): Boolean = delegate.containsValue(value)
override fun get(key: String): Value? = delegate[key.caseInsensitive()]
override fun isEmpty(): Boolean = delegate.isEmpty()
override fun clear() {
delegate.clear()
}
override fun put(key: String, value: Value): Value? = delegate.put(key.caseInsensitive(), value)
override fun putAll(from: Map) {
from.forEach { (key, value) -> put(key, value) }
}
override fun remove(key: String): Value? = delegate.remove(key.caseInsensitive())
override val keys: MutableSet
get() = DelegatingMutableSet(
delegate.keys,
{ content },
{ caseInsensitive() }
)
override val entries: MutableSet>
get() = DelegatingMutableSet(
delegate.entries,
{ Entry(key.content, value) },
{ Entry(key.caseInsensitive(), value) }
)
override val values: MutableCollection get() = delegate.values
override fun equals(other: Any?): Boolean {
if (other == null || other !is CaseInsensitiveMap<*>) return false
return other.delegate == delegate
}
override fun hashCode(): Int = delegate.hashCode()
}
private class Entry(
override val key: Key,
override var value: Value
) : MutableMap.MutableEntry {
override fun setValue(newValue: Value): Value {
value = newValue
return value
}
override fun hashCode(): Int = 17 * 31 + key!!.hashCode() + value!!.hashCode()
override fun equals(other: Any?): Boolean {
if (other == null || other !is Map.Entry<*, *>) return false
return other.key == key && other.value == value
}
override fun toString(): String = "$key=$value"
}