TimeRecognition.java

package org.ansj.recognition.impl;

import java.util.LinkedList;
import java.util.List;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

import org.ansj.domain.Nature;
import org.ansj.domain.Result;
import org.ansj.domain.Term;
import org.ansj.recognition.Recognition;

/**
 * 时间识别抽取
 * 
 * @author sunyang
 * 
 */
public class TimeRecognition implements Recognition {

	/**
	 * 
	 */
	private static final long serialVersionUID = 1L;
	private static final Nature nature = new Nature("t");

	@Override
	public void recognition(Result result) {
		String name = "";
		String timeWord = "";
		List<Term> terms = result.getTerms();
		LinkedList<Term> mergeList = new LinkedList<Term>();
		List<Term> list = new LinkedList<Term>();

		Pattern pattern = Pattern
				.compile(
						"((\\d|[０１２３４５６７８９]){1,4}年(\\d|[０１２３４５６７８９]){1,2}月(\\d|[０１２３４５６７８９]){1,2}[日|号](上午|下午|中午|晚)?(\\s)*((\\d|[０１２３４５６７８９]){1,2}([点|时|點|時])?((:)?(\\d|[０１２３４５６７８９]){1,2}(分)?((:)?(\\d|[０１２３４５６７８９]){1,2}(秒)?)?)?)?(\\s)*(PM|AM)?|(\\d|[０１２３４５６７８９]){1,2}(月|月份)(\\d|[０１２３４５６７８９]){1,2}([日|号])?(上午|下午|中午|晚)?(\\s)*((\\d|[０１２３４５６７８９]){1,2}([点|时|點|時])?((:)?(\\d|[０１２３４５６７８９]){1,2}(分)?((:)?(\\d|[０１２３４５６７８９]){1,2}(秒)?)?)?)?(\\s)*(PM|AM)?|(\\d|[０１２３４５６７８９]){1,2}日(上午|下午|中午|晚)?(\\s)*((\\d|[０１２３４５６７８９]){1,2}([点|时|點|時])?((:)?(\\d|[０１２３４５６７８９]){1,2}(分)?((:)?(\\d|[０１２３４５６７８９]){1,2}(秒)?)?)?)?(\\s)*(PM|AM)?|(昨天|昨日|昨日上午|昨日下午|昨日晚上|昨天早上|昨天上午|昨天中午|昨天下午|昨晚|昨夜|昨天晚上|今天早上|今天上午|今天下午|今晚|今天晚上|今日上午|今日下午|今日|今天|前天|今年|去年|当日|当日上午|上午|下午|中午|清晨|前晚|早上|凌晨|今晨|近日|日前|不久前)((\\d|[０１２３４５６７８９]){1,2}[点|时|點|時])?((:)?(\\d|[０１２３４５６７８９]){1,2}(分)?((:)?(\\d|[０１２３４５６７８９]){1,2}(秒)?)?)?(\\s)*(PM|AM)?|[\\“|\"](1|2|3|4|5|6|7|8|9|10|11|12)[·|.| |-](\\d|[０１２３４５６７８９]){1,2}[\\”|\"]|星期[一|二|三|四|五|六|天|日]|(\\d|[０１２３４５６７８９]){1,2}[点|时|點|時]((:)?(\\d|[０１２３４５６７８９]){1,2}(分)?((:)?(\\d|[０１２３４５６７８９]){1,2}(秒)?)?)?(\\s)*(PM|AM)?|(\\d|[０１２３４５６７８９]){4}年((\\d|[０１２３４５６７８９]){1,2}月)?|(\\d|[０１２３４５６７８９]){1,2}月|(正|一|二|三|四|五|六|七|八|九|十|十一|十二|腊)月((初|十|二十|三十)[ 一二三四五六七八九十])?(上午|下午|中午|晚)?|((\\d|[０１２３４５６７８９]){4}-(\\d|[０１２３４５６７８９]){2}-(\\d|[０１２３４５６７８９]){2})?(\\s)*(\\d|[０１２３４５６７８９]){2}:(\\d|[０１２３４５６７８９]){2}:(\\d|[０１２３４５６７８９]){2}|(\\d|[０１２３４５６７８９]){4}-(\\d|[０１２３４５６７８９]){2}-(\\d|[０１２３４５６７８９]){2}(\\s)*((\\d|[０１２３４５６７８９]){2}:(\\d|[０１２３４５６７８９]){2}:(\\d|[０１２３４５６７８９]){2})?)",
						Pattern.CASE_INSENSITIVE | Pattern.MULTILINE);

		for (int i = 0; i < terms.size(); i++) {
			boolean isTime = false;
			Term termBase = terms.get(i);
			int timeTermsLength = 1;
			int matchLength = 0; //匹配长度
			for (int j = i; j < terms.size() && matchLength < 11; j++) { //向后最大找14个词匹配是否是时间词
				Term term = terms.get(j);
				name = term.getName();
				timeWord += name;
				Matcher matcher = pattern.matcher(timeWord);
				mergeList.add(term);
				if (matcher.matches()) {
					isTime = true;
					timeTermsLength += (j - i);
					i = j;
				}
				matchLength++;
			}		
			if (isTime) {
				Term ft = mergeList.pollFirst();
				for (int k = 0; k < timeTermsLength - 1; k++) {
					ft.merageWithBlank(mergeList.get(k));
				}
				ft.setNature(nature);
				list.add(ft);
			} else {
				list.add(termBase);
			}
			mergeList.clear();
			timeWord = "";

		}
		result.setTerms(list);
	}
	


}