/* <IW#ME
**SiteFileFetch.java @`tXKP$so
*/ 6S6f\gAM
package NetFox; Q9}dHIe1E
import java.io.*; 5D M"0
import java.net.*; CT0l!J~5m~
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public class SiteFileFetch extends Thread { }X
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SiteInfoBean siteInfoBean = null; //文件信息Bean m)V/L]4
long[] nStartPos; //开始位置 D=:04V}2+
long[] nEndPos; //结束位置 *Av"JAX
FileSplitterFetch[] fileSplitterFetch; //子线程对象 m9U"[Huv1E
long nFileLength; //文件长度 4Mk-2 Dx
boolean bFirst = true; //是否第一次取文件 {G <kA(Lm
boolean bStop = false; //停止标志 6v,z@!b
File tmpFile; //文件下载的临时信息 n JPyM/p
DataOutputStream output; //输出到文件的输出流 UobyK3.%
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//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) ^pM+A6
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public SiteFileFetch(SiteInfoBean bean) throws IOException zF5uN:-s
{ r{L4]|(utY
siteInfoBean = bean; aP'"G^F
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); r kiT1YTY
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); .jy]8S8[|%
if(tmpFile.exists ()) BBcV9CGU
{ pJN$ {
bFirst = false; M#|dIbns
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read_nPos(); {3N'D2N
} /1?R?N2>0
else ng:Q1Q9N
{ XZw6Xtn
nStartPos = new long[bean.getNSplitter()]; -
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nEndPos = new long[bean.getNSplitter()]; Y(.OF
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} (98Nzgxgx}
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public void run() NBb6T
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{ nx0K$Ptq
//获得文件长度 #+$Q+Z|6k
//分割文件 Scv#zuv_
//实例FileSplitterFetch T{wuj[Q#:
//启动FileSplitterFetch线程 Y.^=]-n,
//等待子线程返回 mo~*C
try{ ;-UmY}MU
if(bFirst) AyMd:5;
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nFileLength = getFileSize(); Wu)>U
if(nFileLength == -1) nC{%quwh{
{ 9W5onn
System.err.println("File Length is not known!"); yoAfc
} h$L"8#
else if(nFileLength == -2) >vo=]cw
{ Nan[<
System.err.println("File is not access!"); / g 2b
} V`@>MOw^d
else H(Eh c
{ #nh|=X
for(int i=0;i<nStartPos.length;i++) s`>[F@N7.o
{ F: mq'<Q
nStartPos = (long)(i*(nFileLength/nStartPos.length)); Xy%p "b<
} b%cF
for(int i=0;i<nEndPos.length-1;i++) ws^4?O
{ %c[ V
nEndPos = nStartPos[i+1]; r1fGJv1!o
} aM4k *|H?
nEndPos[nEndPos.length-1] = nFileLength; D-N8<:cA
} h,"4SSL
} 2k<;R':
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//启动子线程 z3uW)GQ.
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; }pJwj
for(int i=0;i<nStartPos.length;i++) jv&!Kw.Ug
{ H*9~yT'Q
fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), /a6Xa&(B
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), "*})3['n
nStartPos,nEndPos,i); V\6]n2
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); yV^s,P1
fileSplitterFetch.start(); |.wEm;Bz
} a@R]X5[O
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), p0pWzwTG3
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); qpXWi
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// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", U)3DQ6T99
nEndPos = " + nFileLength); Gm\/Y:U
// fileSplitterFetch[nPos.length-1].start(); -ig6w.%lk
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//等待子线程结束 S%`0'lzzj
//int count = 0; <^$<#Kd
//是否结束while循环 uIZWO.OdU
boolean breakWhile = false; *E{2J:`
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while(!bStop) H#ncM~y*
{ :^(>YAyHj^
write_nPos(); [}&Sxgv
Utility.sleep(500); l<);s
breakWhile = true; o^
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for(int i=0;i<nStartPos.length;i++) *BR ^U$,e
{ f;b[w
if(!fileSplitterFetch.bDownOver) AF%@VLf
{ Qubp9C#r
breakWhile = false; l'eyq}&
break; Jkek-m
} Hhh0T>gi
} uS^Ipxe\
if(breakWhile) /3{b%0Aa
break; Ih"XV
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//count++; y`=]T>X&x
//if(count>4) 8e(\%bX
// siteStop(); rh^mJUh
} r
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System.err.println("文件下载结束!"); tdu$pC6
} c??mL4$'N
catch(Exception e){e.printStackTrace ();} S.f5v8
} _D+J!f^
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//获得文件长度 {Ja!~N;3
public long getFileSize() wY_)y
{ zld#qG6
int nFileLength = -1; Uw7h=UQh
try{ G2T|RT$_K
URL url = new URL(siteInfoBean.getSSiteURL()); %xyou:~0zs
HttpURLConnection httpConnection = (HttpURLConnection)url.openConnection (); _BP&n