| /* |
| * 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 org.apache.solr.ltr.store; |
| |
| import java.util.ArrayList; |
| import java.util.Collections; |
| import java.util.LinkedHashMap; |
| import java.util.List; |
| |
| import org.apache.solr.ltr.feature.Feature; |
| import org.apache.solr.ltr.feature.FeatureException; |
| |
| public class FeatureStore { |
| |
| /** the name of the default feature store **/ |
| public static final String DEFAULT_FEATURE_STORE_NAME = "_DEFAULT_"; |
| |
| private final LinkedHashMap<String,Feature> store = new LinkedHashMap<>(); // LinkedHashMap because we need predictable iteration order |
| private final String name; |
| |
| public FeatureStore(String name) { |
| this.name = name; |
| } |
| |
| public String getName() { |
| return name; |
| } |
| |
| public Feature get(String name) { |
| return store.get(name); |
| } |
| |
| public void add(Feature feature) { |
| final String name = feature.getName(); |
| if (store.containsKey(name)) { |
| throw new FeatureException(name |
| + " already contained in the store, please use a different name"); |
| } |
| feature.setIndex(store.size()); |
| store.put(name, feature); |
| } |
| |
| public List<Feature> getFeatures() { |
| final List<Feature> storeValues = new ArrayList<Feature>(store.values()); |
| return Collections.unmodifiableList(storeValues); |
| } |
| |
| @Override |
| public String toString() { |
| return "FeatureStore [features=" + store.keySet() + "]"; |
| } |
| |
| } |