/* (
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**SiteFileFetch.java XA{tVh
*/ !8]W"@qb
package NetFox; G0$
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import java.io.*; @W|}|V5
import java.net.*; WF<0QH
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public class SiteFileFetch extends Thread { krm&.J
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SiteInfoBean siteInfoBean = null; //文件信息Bean w}pFa76rm
long[] nStartPos; //开始位置 Owalt4}C
long[] nEndPos; //结束位置 J?$4Yf
FileSplitterFetch[] fileSplitterFetch; //子线程对象 S~`&K
long nFileLength; //文件长度 li\hH d5
boolean bFirst = true; //是否第一次取文件 u2'xM0nQ
boolean bStop = false; //停止标志 5I5~GH
File tmpFile; //文件下载的临时信息 Nzz" w_#
DataOutputStream output; //输出到文件的输出流 67 >*AL
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//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) ,WbO8#z+
public SiteFileFetch(SiteInfoBean bean) throws IOException 0Ph,E
{ 39?iX'*p
siteInfoBean = bean; RLr;]j8cm
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); R%XbO~{u
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); `bO+3Y'5
if(tmpFile.exists ()) =x}27f%-Mg
{ 0Z#&!xTb
bFirst = false; ciI;U/V
read_nPos(); S'vi +_
} nn$,|/
else h,<%cvU=
{ @Y*ONnl
nStartPos = new long[bean.getNSplitter()]; 3+"z
nEndPos = new long[bean.getNSplitter()]; LOi5 ^Um|
} pm O }m>
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} UO8#8
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public void run() Ph2jj,K
{ k2N[B(&4J
//获得文件长度 xlkEW&N&
//分割文件 ^_KHw
//实例FileSplitterFetch Lm"l*j4
//启动FileSplitterFetch线程 |eWlB\ x8
//等待子线程返回 ge?1ez2
try{ +LV~%?W
if(bFirst) k61Ot3
{ $d?<(n
nFileLength = getFileSize(); azz6_qk8
if(nFileLength == -1) sCSrwsbhv
{ U,Nf&g
System.err.println("File Length is not known!"); z+&mMP`-
} ?n>h/[/
else if(nFileLength == -2) (F~i
{ +mE y7qM
System.err.println("File is not access!"); bl(rCbj(w
} Dms6"x2
else Z.<OtsQN
{ uG&xtN8
for(int i=0;i<nStartPos.length;i++) 8a|p`)lT
{ _kl.zw%
nStartPos = (long)(i*(nFileLength/nStartPos.length)); -?'r_t
} Y<%$;fx$Sx
for(int i=0;i<nEndPos.length-1;i++) LHKawEZ
{ X*1vIs;[@
nEndPos = nStartPos[i+1]; G%-[vk#]
} )nJs9}( 0
nEndPos[nEndPos.length-1] = nFileLength; ~\<Fq \.x
} 5`*S'W}\>
} K+TRt"W8&s
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//启动子线程 Xa#`VDh
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; "zJ1vIZY
for(int i=0;i<nStartPos.length;i++) xRq|W4ay
{ B<J}YN
fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), ^aN;M\
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), ?SRG;G1
nStartPos,nEndPos,i); o X )r4H?
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); Wd?(B4{
fileSplitterFetch.start(); ?kX$Y{M}
} 1om :SHw
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), p]:5S_$
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); |7 ]v&?y
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", E$=!l{Ms
nEndPos = " + nFileLength); Ey A}
// fileSplitterFetch[nPos.length-1].start(); j8WnXp_
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//等待子线程结束 .&=nP?ZPC6
//int count = 0; .Ebg>j:\
//是否结束while循环 jQ@z!GirT
boolean breakWhile = false; (e6JI]tz{
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while(!bStop) F\F_">5
{ @~hiL(IR'
write_nPos(); @v\Osp t=
Utility.sleep(500); lt`(R*B%
breakWhile = true; _Je<_pl!D
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for(int i=0;i<nStartPos.length;i++) 4UT%z}[!
{ =<MSM\Rb
if(!fileSplitterFetch.bDownOver) zs:OHEZw
{ x;dyF_*;
breakWhile = false; Xd@ -
break; +KgLe> -}
} ozwPtF5
} UUJbF$@;
if(breakWhile) 3&:Us|}
break; l8 k@.<nCO
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//count++; c1B<