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/*-
* ============LICENSE_START=======================================================
* sdc-distribution-client
* ================================================================================
* Copyright (C) 2023 Deutsche Telekom Intellectual Property. All rights reserved.
* ================================================================================
* Licensed 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.
* ============LICENSE_END=========================================================
*/
package org.onap.sdc.utils;
import java.util.HashMap;
/**
* A custom map implementation that allows case-insensitive key checks
*
* This is used for response/request headers that can be transformed to
* lowercase by the ingress/envoy sidecar.
* HTTP headers are case-insensitive according to RFC 2616
*
* @author mszwalkiewicz
*/
public class CaseInsensitiveMap<K, V> extends HashMap<K, V> {
public boolean containsCaseInsensitiveKey(String key) {
for (K existingKey : keySet()) {
if (existingKey.toString().equalsIgnoreCase(key)) {
return true;
}
}
return false;
}
public V getCaseInsensitiveKey(String key) {
for (K existingKey : keySet()) {
if (existingKey.toString().equalsIgnoreCase(key)) {
return super.get(existingKey);
}
}
return null;
}
}
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