| /* |
| * 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.hugegraph.analyzer; |
| |
| import java.util.List; |
| import java.util.Set; |
| |
| import org.ansj.domain.Result; |
| import org.ansj.domain.Term; |
| import org.ansj.splitWord.analysis.BaseAnalysis; |
| import org.ansj.splitWord.analysis.IndexAnalysis; |
| import org.ansj.splitWord.analysis.NlpAnalysis; |
| import org.ansj.splitWord.analysis.ToAnalysis; |
| import org.apache.hugegraph.config.ConfigException; |
| import org.apache.hugegraph.util.InsertionOrderUtil; |
| |
| import com.google.common.collect.ImmutableList; |
| |
| /** |
| * Reference from https://github.com/NLPchina/ansj_seg/wiki |
| */ |
| public class AnsjAnalyzer implements Analyzer { |
| |
| public static final List<String> SUPPORT_MODES = ImmutableList.of( |
| "BaseAnalysis", |
| "IndexAnalysis", |
| "ToAnalysis", |
| "NlpAnalysis" |
| ); |
| |
| private final String analysis; |
| |
| public AnsjAnalyzer(String mode) { |
| if (!SUPPORT_MODES.contains(mode)) { |
| throw new ConfigException( |
| "Unsupported segment mode '%s' for ansj analyzer, " + |
| "the available values are %s", mode, SUPPORT_MODES); |
| } |
| this.analysis = mode; |
| } |
| |
| @Override |
| public Set<String> segment(String text) { |
| Result terms; |
| switch (this.analysis) { |
| case "BaseAnalysis": |
| terms = BaseAnalysis.parse(text); |
| break; |
| case "ToAnalysis": |
| terms = ToAnalysis.parse(text); |
| break; |
| case "NlpAnalysis": |
| terms = NlpAnalysis.parse(text); |
| break; |
| case "IndexAnalysis": |
| terms = IndexAnalysis.parse(text); |
| break; |
| default: |
| throw new AssertionError(String.format( |
| "Unsupported segment mode '%s'", this.analysis)); |
| } |
| |
| assert terms != null; |
| Set<String> result = InsertionOrderUtil.newSet(); |
| for (Term term : terms) { |
| result.add(term.getName()); |
| } |
| return result; |
| } |
| } |