| /* |
| * 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.opennlp.ml.maxent; |
| |
| import java.io.BufferedReader; |
| import java.io.IOException; |
| import java.io.Reader; |
| |
| /** |
| * This DataStream implementation will take care of reading a plain text file |
| * and returning the Strings between each new line character, which is what |
| * many Maxent applications need in order to create EventStreams. |
| */ |
| public class PlainTextByLineDataStream implements DataStream { |
| BufferedReader dataReader; |
| String next; |
| |
| public PlainTextByLineDataStream(Reader dataSource) { |
| dataReader = new BufferedReader(dataSource); |
| try { |
| next = dataReader.readLine(); |
| } catch (IOException e) { |
| e.printStackTrace(); |
| } |
| } |
| |
| public Object nextToken() { |
| String current = next; |
| try { |
| next = dataReader.readLine(); |
| } catch (Exception e) { |
| e.printStackTrace(); |
| } |
| return current; |
| } |
| |
| public boolean hasNext() { |
| return next != null; |
| } |
| } |
| |