content: /*
   * Licensed to the Apache Software Foundation (ASF) under one or more
   * contributor license agreements.  See the NOTICE file distributed with
   * this work for additional information regarding copyright ownership.
   * The ASF licenses this file to You 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 network.aika.bindingsignal;
  
  import network.aika.Document;
  import network.aika.activations.Activation;
  import network.aika.activations.ActivationKey;
  import network.aika.neurons.Neuron;
  
  import java.util.*;
  import java.util.stream.Stream;
  
  /**
   *
   * @author Lukas Molzberger
   */
  public class BindingSignal {
  
      private final int tokenId;
  
      private final Document doc;
  
      private final NavigableMap<ActivationKey, Activation> activations = new TreeMap<>(
              Comparator.comparingLong(ActivationKey::neuronId)
                      .thenComparingInt(ActivationKey::actId)
      );
  
      public BindingSignal(int tokenId, Document doc) {
          this.tokenId = tokenId;
          this.doc = doc;
      }
  
      public int getTokenId() {
          return tokenId;
      }
  
      public Document getDocument() {
          return doc;
      }
  
      public void addActivation(Activation act) {
          activations.put(act.getKey(), act);
      }
  
      public Stream<Activation> getActivations(Neuron n) {
          return activations.subMap(
                          new ActivationKey(n.getId(), Integer.MIN_VALUE),
                          new ActivationKey(n.getId(), Integer.MAX_VALUE)
                  )
                  .values()
                  .stream();
      }
  
      public Collection<Activation> getActivations() {
          return activations.values();
      }
  
      public String toString() {
          return "" + tokenId;
      }
  }
  