package?Neo4j.Neo4jDemo;

import?java.io.BufferedReader;
import?java.io.File;
import?java.io.FileNotFoundException;
import?java.io.FileReader;
import?java.io.IOException;
import?java.util.ArrayList;
import?java.util.Collections;
import?java.util.Comparator;
import?java.util.HashMap;
import?java.util.HashSet;
import?java.util.List;
import?java.util.Map;
import?java.util.Map.Entry;
import?java.util.Set;

import?org.neo4j.graphdb.Direction;
import?org.neo4j.graphdb.DynamicRelationshipType;
import?org.neo4j.graphdb.GraphDatabaseService;
import?org.neo4j.graphdb.Node;
import?org.neo4j.graphdb.Path;
import?org.neo4j.graphdb.Relationship;
import?org.neo4j.graphdb.RelationshipType;
import?org.neo4j.graphdb.ResourceIterable;
import?org.neo4j.graphdb.Transaction;
import?org.neo4j.graphdb.factory.GraphDatabaseFactory;
import?org.neo4j.graphdb.traversal.Evaluator;
import?org.neo4j.graphdb.traversal.Evaluators;
import?org.neo4j.graphdb.traversal.TraversalDescription;
import?org.neo4j.graphdb.traversal.Traverser;
import?org.neo4j.graphdb.traversal.Uniqueness;
import?org.neo4j.graphdb.traversal.UniquenessFactory;
import?org.neo4j.kernel.Traversal;


public?class?Main?{
	//作者集合
	private?static?HashMap?authorMap?=?null;
	//作者的數量
	private?static?int?authorSize?=?0;
	private?static?int?relativeAuthorSize?=?0;
	private?static?HashMap?confMap?=?null;
	//會議的數量
	private?static?int?confSize?=?0;
	
	public?static?void?main（String?args[]）{
		//定義Neo4j數據庫，文件夾命名為ac.graphdb，后綴不能舍棄，否則neo4j?community找不到數據位置
		GraphDatabaseService?db?=?new?GraphDatabaseFactory（）.newembeddedDatabase（“D:/Neo4jDB/dblp.graphdb/“）;
		//創建Neo4j數據庫
		createGraphDB（db）;
		long?authorNodeId?=?getAuthorNodeIdByName（db?“Christos?Faloutsos“）;
		List>?list?=?calTopKSimilarity（dbauthorNodeId10）;
		for?（Map.Entry?mapping?:?list）?{??
????????????System.out.println（mapping.getKey（）?+?“:“?+?mapping.getValue（））;??
????????}
	}
	/**
	?*?計算與源作者最為相似的前K個作者
	?*?@param?db
	?*?@param?authorNodeId
	?*?@param?k
	?*?@return
	?*/
	public?static?List>?calTopKSimilarity（GraphDatabaseService?dblong?authorNodeIdint?k）{		
		Map?AuthorSimilarMap?=?new?HashMap（）;
		Map?confsForA?=?getConfsForAuthor（dbauthorNodeId）;
		//獲得ACA元路徑下相關的作者?NodeId和姓名
		Map?relativeAuthorMap?=?getDep2ForAuthor（dbauthorNodeId）;
		for?（Map.Entry?author?:?relativeAuthorMap.entrySet（））?{
			//獲得相關作者的發表會議信息
			Map?confsForB?=?getConfsForAuthor（dbauthor.getKey（））;
			float?similarity?=?calPathSim（confsForAconfsForB）;
			AuthorSimilarMap.put（author.getValue（）?similarity）;
????????}
		List>?list?=?sortMap（AuthorSimilarMap）;
		if（k>relativeAuthorSize）{
			k=relativeAuthorSize;
		}
		return?list.subList（0?k）;
		
	}
	/**
	?*?根據作者名稱找到圖數據庫中作者節點的ID
	?*?@param?db
	?*?@param?

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件????????791??2018-01-06?13:45??Neo4jDemo\.classpath

?????文件????????561??2018-01-06?11:21??Neo4jDemo\.project

?????文件?????????88??2018-01-06?11:24??Neo4jDemo\.settings\org.eclipse.core.resources.prefs

?????文件????????664??2018-01-06?13:45??Neo4jDemo\.settings\org.eclipse.jdt.core.prefs

?????文件?????????90??2018-01-06?11:21??Neo4jDemo\.settings\org.eclipse.m2e.core.prefs

?????文件????1373018??2017-05-20?14:34??Neo4jDemo\data\author.txt

?????文件????2349080??2017-05-18?21:42??Neo4jDemo\data\author_conf.txt

?????文件??????11485??2017-05-20?14:34??Neo4jDemo\data\conf.txt

?????文件????????908??2018-01-06?11:26??Neo4jDemo\pom.xml

?????文件??????11962??2018-01-08?19:22??Neo4jDemo\src\main\java\Neo4j\Neo4jDemo\Main.java

?????文件????????209??2018-01-07?18:47??Neo4jDemo\src\main\java\Neo4j\Neo4jDemo\Relationships.java

?????文件????????222??2018-01-07?09:54??Neo4jDemo\src\main\java\Neo4j\Neo4jDemo\Type.java

?????文件???????1279??2018-01-08?19:22??Neo4jDemo\target\classes\Neo4j\Neo4jDemo\Main$1.class

?????文件??????14017??2018-01-08?19:22??Neo4jDemo\target\classes\Neo4j\Neo4jDemo\Main.class

?????文件???????1051??2018-01-07?18:47??Neo4jDemo\target\classes\Neo4j\Neo4jDemo\Relationships.class

?????文件???????1018??2018-01-07?09:54??Neo4jDemo\target\classes\Neo4j\Neo4jDemo\Type.class

?????文件????????617??2018-01-06?11:21??Neo4jDemo\target\test-classes\Neo4j\Neo4jDemo\AppTest.class

?????目錄??????????0??2018-01-06?17:16??Neo4jDemo\src\main\java\Neo4j\Neo4jDemo

?????目錄??????????0??2018-01-06?11:21??Neo4jDemo\src\main\java\Neo4j

?????目錄??????????0??2018-01-06?20:34??Neo4jDemo\target\classes\Neo4j\Neo4jDemo

?????目錄??????????0??2018-01-06?11:21??Neo4jDemo\target\test-classes\Neo4j\Neo4jDemo

?????目錄??????????0??2018-01-06?11:21??Neo4jDemo\src\main\java

?????目錄??????????0??2018-01-06?13:45??Neo4jDemo\target\classes\Neo4j

?????目錄??????????0??2018-01-06?11:21??Neo4jDemo\target\test-classes\Neo4j

?????目錄??????????0??2018-01-06?11:21??Neo4jDemo\src\main

?????目錄??????????0??2018-01-06?11:24??Neo4jDemo\src\test

?????目錄??????????0??2018-01-06?13:45??Neo4jDemo\target\classes

?????目錄??????????0??2018-01-06?11:21??Neo4jDemo\target\test-classes

?????目錄??????????0??2018-01-06?11:21??Neo4jDemo\.settings

?????目錄??????????0??2018-01-07?16:26??Neo4jDemo\data

............此處省略6個文件信息