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NotificationValidator.java
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NotificationValidator.java
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/*
* Copyright (C) 2022 java-coap contributors (https://github.com/open-coap/java-coap)
* Copyright (C) 2011-2021 ARM Limited. All rights reserved.
* SPDX-License-Identifier: Apache-2.0
* 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.
*/
package com.mbed.coap.server;
import com.mbed.coap.packet.SeparateResponse;
import com.mbed.coap.utils.Filter;
import com.mbed.coap.utils.Service;
import java.util.concurrent.CompletableFuture;
class NotificationValidator implements Filter.SimpleFilter<SeparateResponse, Boolean> {
@Override
public CompletableFuture<Boolean> apply(SeparateResponse obs, Service<SeparateResponse, Boolean> service) {
if (obs.options().getObserve() == null) {
throw new IllegalArgumentException("Notification packet should have observation header set");
}
if (obs.getToken().isEmpty()) {
throw new IllegalArgumentException("Notification packet should have non-empty token");
}
return service.apply(obs);
}
}