import?java.io.IOException;
import?java.net.URI;
import?java.net.URISyntaxException;

import?org.apache.hadoop.conf.Configuration;
import?org.apache.hadoop.fs.FileStatus;
import?org.apache.hadoop.fs.FileSystem;
import?org.apache.hadoop.fs.Path;

import?Job1_Generate1Item.Generate1Item;
import?Job2_GeneratekItem.GeneratekItem;


public?class?Apriori?{

	public?static?void?main（String[]?args）?throws?ClassNotFoundException
					IOException?InterruptedException?URISyntaxException?{
		//?TODO?Auto-generated?method?stub

		String[]?as?=?new?String[]{
				“hdfs://192.168.80.139:9000/output“
				“hdfs://192.168.80.139:9000/transactions“
				“2“
				“hdfs://192.168.80.139:9000/output“
		};
		
		//steg?1?to?get?the?1?item?set
		Generate1Item.main（as）;
		
		//setg?2?to?get?k?item?set
		int?i?=?0;
		while（?isContinue（as[0]+“/part-r-00000“）?）
		{
			i++;
			as[3]?=?as[0];
			as[0]?+=?i;
			
			GeneratekItem.main（as）;
		}

	}

	private?static?boolean?isContinue（String?string）?throws?IOException?URISyntaxException?{
		//?TODO?Auto-generated?method?stub
			
		//check?the?output?file?whether?is?null
		FileSystem?hdfs?=?FileSystem.get（new?URI（string）?new?Configuration（））;
		
		Path?path?=?new?Path（new?URI（string）.getPath（））;
		
		if（?hdfs.exists（path）?）
		{
			FileStatus?stat?=?hdfs.getFileStatus（path）;
			
			return?stat.getLen（）?>?0;
		}
		return?false;
	}	

}

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

????..A..H.?????18081??2015-05-04?16:46??Project-Apriori\.classpath

????..A..H.???????426??2015-05-04?16:46??Project-Apriori\.project

?????文件?????373596??2015-06-30?11:11??Project-Apriori\Apriori算法并行實現(xiàn).docx

?????文件???????2127??2015-05-05?14:53??Project-Apriori\bin\Apriori.class

?????文件???????1905??2015-05-05?14:09??Project-Apriori\bin\Job1_Generate1Item\Generate1Item.class

?????文件???????2508??2015-05-05?11:39??Project-Apriori\bin\Job1_Generate1Item\Generate1ItemMapper.class

?????文件???????3000??2015-05-05?14:02??Project-Apriori\bin\Job1_Generate1Item\Generate1ItemReducer.class

?????文件???????2291??2015-05-05?14:14??Project-Apriori\bin\Job2_GeneratekItem\GeneratekItem.class

?????文件???????8570??2015-05-05?11:39??Project-Apriori\bin\Job2_GeneratekItem\GeneratekItemMapper.class

?????文件???????3000??2015-05-05?13:58??Project-Apriori\bin\Job2_GeneratekItem\GeneratekItemReducer.class

?????文件???????1376??2015-05-05?14:52??Project-Apriori\src\Apriori.java

?????文件???????1236??2015-05-05?14:09??Project-Apriori\src\Job1_Generate1Item\Generate1Item.java

?????文件????????789??2015-05-04?19:25??Project-Apriori\src\Job1_Generate1Item\Generate1ItemMapper.java

?????文件???????1031??2015-05-05?14:02??Project-Apriori\src\Job1_Generate1Item\Generate1ItemReducer.java

?????文件???????1460??2015-05-05?14:14??Project-Apriori\src\Job2_GeneratekItem\GeneratekItem.java

?????文件???????5831??2015-05-05?11:34??Project-Apriori\src\Job2_GeneratekItem\GeneratekItemMapper.java

?????文件????????965??2015-05-05?13:58??Project-Apriori\src\Job2_GeneratekItem\GeneratekItemReducer.java

?????目錄??????????0??2015-05-05?16:23??Project-Apriori\bin\Job1_Generate1Item

?????目錄??????????0??2015-05-05?16:23??Project-Apriori\bin\Job2_GeneratekItem

?????目錄??????????0??2015-05-05?16:23??Project-Apriori\src\Job1_Generate1Item

?????目錄??????????0??2015-05-05?16:23??Project-Apriori\src\Job2_GeneratekItem

?????目錄??????????0??2015-05-05?16:23??Project-Apriori\bin

?????目錄??????????0??2015-05-05?16:23??Project-Apriori\src

?????目錄??????????0??2015-06-30?11:12??Project-Apriori

-----------?---------??----------?-----??----

???????????????428192????????????????????24