/**
* Copyright © 2016-2017 The Thingsboard Authors
*
* 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 org.thingsboard.server.extensions.api.rules;
import java.util.Collections;
import java.util.HashMap;
import java.util.Map;
import java.util.Optional;
public class RuleProcessingMetaData {
private final Map<String, Object> md;
public RuleProcessingMetaData() {
super();
this.md = new HashMap<>();
}
public <T> void put(String key, T value) {
md.put(key, value);
}
public <T> Optional<T> get(String key) {
return Optional.ofNullable((T) md.get(key));
}
public Map<String, Object> getValues() {
return Collections.unmodifiableMap(md);
}
}