/* iXkF1r]i
**SiteFileFetch.java 2szPAuN+
*/ ]EbM9Fo-U
package NetFox; K g*Q
import java.io.*; NX.6px17
import java.net.*; GKqm&/M*=
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public class SiteFileFetch extends Thread { 5ta `%R_
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SiteInfoBean siteInfoBean = null; //文件信息Bean S}3fr^{.
long[] nStartPos; //开始位置 CkC^'V)
long[] nEndPos; //结束位置 Po;W'7"Po`
FileSplitterFetch[] fileSplitterFetch; //子线程对象 g/_5unI}u
long nFileLength; //文件长度 !TH)
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boolean bFirst = true; //是否第一次取文件 XW H5d-
boolean bStop = false; //停止标志 QZwNw;$k*
File tmpFile; //文件下载的临时信息 hag$GX'2k
DataOutputStream output; //输出到文件的输出流 c]-<vkpV
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//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) o[4}h:> dq
public SiteFileFetch(SiteInfoBean bean) throws IOException ,t744k')
{ c]<5zyl"j1
siteInfoBean = bean; ztY}5A2`
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); VCfl`Aq'l
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); s)t@ol
if(tmpFile.exists ()) M?49TOQA
{ ;d$rdFA_
bFirst = false; G>=*yqo
read_nPos();
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} n6>#/eUH
else ]cvwIc">
{ 9RL`<,Q
nStartPos = new long[bean.getNSplitter()]; aK~8B_5k8
nEndPos = new long[bean.getNSplitter()]; 8`{:MkXP
} (m}'4et~L
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} kazzVK5x
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public void run() cZ*@$%_
{ O\tb R=
//获得文件长度 xH,a=8&9
//分割文件 7z,C}-q
//实例FileSplitterFetch G_tCmu\
//启动FileSplitterFetch线程 `[yKFa
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//等待子线程返回 #z%fx
try{ [DOckf oZx
if(bFirst) 'oVx#w^mf
{ ">nxHU
nFileLength = getFileSize(); On?v|10r'
if(nFileLength == -1) Lb-OsKU
{ ]5cT cX;Z#
System.err.println("File Length is not known!"); G4;Oi=
} }v{LRRi
else if(nFileLength == -2) $wa{~'
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System.err.println("File is not access!"); S13nL^=i
} G!##X: 6'
else 6|=f$a
{ MjRHA^b
for(int i=0;i<nStartPos.length;i++)
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nStartPos = (long)(i*(nFileLength/nStartPos.length)); ,qwuLBW
} MN>b7O \.?
for(int i=0;i<nEndPos.length-1;i++) 9=tIz
{ d-ko
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nEndPos = nStartPos[i+1]; G*MUO#_iuh
} 7A7?GDW
nEndPos[nEndPos.length-1] = nFileLength; 8Fh)eha9f
} >'$Mp <
} Y@iS_lR
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//启动子线程 3}1u\(Mf
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; (9d &
for(int i=0;i<nStartPos.length;i++) %;'s4ly
{ .{^5X)
fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), 9*wK@yEl
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), 9FR5Jw>t
nStartPos,nEndPos,i); t@;p
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); wlvgg
fileSplitterFetch.start(); @HC Vmg:
} ajT*/L!0_
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), .P]+? %&
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); @mBQ?;qlK
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", Y=KT eYW`
nEndPos = " + nFileLength); D_7,m%Z:
// fileSplitterFetch[nPos.length-1].start(); T-L||yE,h
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//等待子线程结束 Or+U@vAnk
//int count = 0; _[3D
//是否结束while循环 +sA2WK]
boolean breakWhile = false; $%Kfq[Q
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while(!bStop) =nS3p6>rZ
{ C!!M%P
write_nPos(); 6 "sSo j
Utility.sleep(500); B9 uoVcW
breakWhile = true; yyJf%{
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for(int i=0;i<nStartPos.length;i++) p
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{ 3$R1ipb
if(!fileSplitterFetch.bDownOver) +'a^f5
{ !pW0qX\1n
breakWhile = false; d0ksG$
break; /~?*=}c^m
} ND;#7/$>
} %> eiAB_b
if(breakWhile) p2](_}PK
break; Kc-W&?~y#1
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//count++; eym4=k ~
//if(count>4) "8MF_Gu):
// siteStop(); 7$=InK
} vE?G7%,
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System.err.println("文件下载结束!"); eauF~md,
} 0h_|t-9j
catch(Exception e){e.printStackTrace ();} T8g$uFo
} %u'ukcL7
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//获得文件长度 ZE}}W_
public long getFileSize() :I#V.
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int nFileLength = -1; SJ,v?=S!
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URL url = new URL(siteInfoBean.getSSiteURL()); :o3N;*o>)0
HttpURLConnection httpConnection = (HttpURLConnection)url.openConnection (); T~e.PP
httpConnection.setRequestProperty("User-Agent","NetFox"); ,J@
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int responseCode=httpConnection.getResponseCode(); {wKB;?fUvk
if(responseCode>=400) { <