/* *}89.kCBF
**SiteFileFetch.java LKvX~68
*/ r:V
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package NetFox; L!xFhVA<
import java.io.*; Q (f0S
import java.net.*; Dh`&B
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public class SiteFileFetch extends Thread { E9\"@wu[d
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SiteInfoBean siteInfoBean = null; //文件信息Bean vy~6]hH
long[] nStartPos; //开始位置 %q|*}l
long[] nEndPos; //结束位置 "J,|),Yd
FileSplitterFetch[] fileSplitterFetch; //子线程对象 ouCh2Y/_
long nFileLength; //文件长度 =Lkn
boolean bFirst = true; //是否第一次取文件 fC'u-m?!Q'
boolean bStop = false; //停止标志 sX6\AYF1M
File tmpFile; //文件下载的临时信息 y<6Sl6l*
DataOutputStream output; //输出到文件的输出流 ^4`x:6m
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//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) g
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public SiteFileFetch(SiteInfoBean bean) throws IOException 9mHCms
{ /UunWZ u%
siteInfoBean = bean; &C
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//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); E?+~S M1~
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); P WS8Dpb
if(tmpFile.exists ()) H'3
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{ S=P}Jpq?Y;
bFirst = false; _:\rB
read_nPos(); Q(<A Yu
} 'G65zz
else sBZn0h@
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nStartPos = new long[bean.getNSplitter()]; !y_L~81?
nEndPos = new long[bean.getNSplitter()]; )>h3IR
} )*}\fmOv{
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public void run() ^?fsJ
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//获得文件长度 VJ-t#q"
//分割文件 Po=:-Of:
//实例FileSplitterFetch ,9G'1%z,
//启动FileSplitterFetch线程 z#RwgSPw6
//等待子线程返回 MX~h>v3_R4
try{ {G=> WAXo
if(bFirst) 'KmM%tN
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nFileLength = getFileSize(); !Dc?9W!b
if(nFileLength == -1) vULDKJNHX
{ xKL(:ePS
System.err.println("File Length is not known!"); ]u|FcwWc3
} I*U7YqDC9
else if(nFileLength == -2) !N+{X\+
{ vrmMEWPV
System.err.println("File is not access!"); JUw|nUnl?
} 0*]0#2Z
else prO&"t
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{ K
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for(int i=0;i<nStartPos.length;i++) VB/75xK_
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nStartPos = (long)(i*(nFileLength/nStartPos.length)); U!+O+(
} hFoeVM[h
for(int i=0;i<nEndPos.length-1;i++) }6LcimQyK
{ -U>)B
nEndPos = nStartPos[i+1]; ,hNs{-*
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nEndPos[nEndPos.length-1] = nFileLength; c)Q-yPMl)
} kxe{HxM$Z
} =^M Q 4
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//启动子线程 d^?e*USh
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; |oeg'T
for(int i=0;i<nStartPos.length;i++) UBv#z&@[
{ m6
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fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), g#{7qmM
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), $n8&5<
nStartPos,nEndPos,i); KDg%sgRu}
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); /FXb,)1t
fileSplitterFetch.start(); T^8`ji
} 68~]_r.a
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), 1|
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siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); D {E,XOi
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", 0RdW.rZJ
nEndPos = " + nFileLength); hT=E~|O
// fileSplitterFetch[nPos.length-1].start(); O:V.;q2]U
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//等待子线程结束 {3os9r,
//int count = 0; l66 QgPA
//是否结束while循环 4t*VI<=<[
boolean breakWhile = false; w'i+WEU>l
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while(!bStop) MYJDfI
{ KxmB$x5-=8
write_nPos(); \o,et9zDJ3
Utility.sleep(500); R90chl
breakWhile = true; p*$=EomY
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for(int i=0;i<nStartPos.length;i++) :`yW^b
{ !=vsY]
if(!fileSplitterFetch.bDownOver) !+hw8@A
{ /$qB&OWJn
breakWhile = false; 0^P9)<k'
break; A@.ruG$
} ?)qm=mebY
} 0a?[@ -Sz
if(breakWhile) IH=%%AS
break; Ka{QjW!%d<
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//count++; *W}nw$tnBX
//if(count>4) JDpW7OrDc
// siteStop(); F%ukT6xp
} slA~k;K:_
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System.err.println("文件下载结束!"); ;cv\v(0
} )1 0aDTlr
catch(Exception e){e.printStackTrace ();} QSYKYgxC
} `+(JwQC4
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//获得文件长度 %E":Wv
public long getFileSize() ac43d`wpK
{ yW(A0
int nFileLength = -1; XC[AJ!q`
try{ BYI13jMH+Y
URL url = new URL(siteInfoBean.getSSiteURL()); _A$V~Hp9q
HttpURLConnection httpConnection = (HttpURLConnection)url.openConnection (); {y!77>Q/
httpConnection.setRequestProperty("User-Agent","NetFox"); rj eKG-Z@
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int responseCode=httpConnection.getResponseCode(); lt l(SIi
if(responseCode>=400) +P*,i$MV
{ y9GaxW*&