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**SiteFileFetch.java it1/3y
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package NetFox; usOx=^?=
import java.io.*; [uR/M
import java.net.*; };S0 G!
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public class SiteFileFetch extends Thread { kMxjS^fr
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SiteInfoBean siteInfoBean = null; //文件信息Bean *Km7U-BG
long[] nStartPos; //开始位置 w> 979g
long[] nEndPos; //结束位置 YV([2
FileSplitterFetch[] fileSplitterFetch; //子线程对象 8_Z/ o5s
long nFileLength; //文件长度 6E^~n
boolean bFirst = true; //是否第一次取文件
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boolean bStop = false; //停止标志 ?+`xe{k
File tmpFile; //文件下载的临时信息 \dkOK`)b
DataOutputStream output; //输出到文件的输出流 Gi7RMql6Q
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//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) CAgaEJhX3
public SiteFileFetch(SiteInfoBean bean) throws IOException kso*} uh0
{ 8MZ$T3IM
siteInfoBean = bean; (lWq[0^N
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); g}Qx`65:
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); 4~|<`vqN
if(tmpFile.exists ()) x-_vl
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{ cm@;*
bFirst = false; %l$W*.j|;
read_nPos(); 91d },Mq:
} p;%<mUI
else :6Pad
{ "s_Z&
nStartPos = new long[bean.getNSplitter()]; kGHC]Fb)
nEndPos = new long[bean.getNSplitter()]; C-SLjJw
} 5
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} P))^vUt~
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public void run() w~+ aW(2
{ i_l+:/+G+
//获得文件长度 M{KW@7j
//分割文件 flnVYQe
//实例FileSplitterFetch r@$ w*%
//启动FileSplitterFetch线程 8cdsToF(e.
//等待子线程返回 ][:rLs
try{ ZkWL_ H)
if(bFirst) 0I%: BT
{ `ROG~0lN(
nFileLength = getFileSize(); ]WL|~mG
if(nFileLength == -1) h-XY4gq/
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System.err.println("File Length is not known!"); &<1`O
} F
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else if(nFileLength == -2) BD*G1k_q
{ $>w/Cy
System.err.println("File is not access!"); !j^&gRH
} RKuqx:U
else {o|k.zy
{ >. DC!QV
for(int i=0;i<nStartPos.length;i++) |wp,f%WK
{ tT5pggml
nStartPos = (long)(i*(nFileLength/nStartPos.length)); *g$i5!yM'
} S; /. %
for(int i=0;i<nEndPos.length-1;i++) d3^7ag%
{ aj8Rb&
nEndPos = nStartPos[i+1]; wNDbHR
} Ly #_?\bn
nEndPos[nEndPos.length-1] = nFileLength; E1*QdCV2
} nk@atK,38^
} >^SEWZ_[
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//启动子线程 4 I@p%g&
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; 92[a;a
for(int i=0;i<nStartPos.length;i++) Oh; Jw
{
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fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), 8r:M*25
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), HEY4$Lf(I
nStartPos,nEndPos,i); |>1hu1
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); ;YH[G;aJ
fileSplitterFetch.start(); A lwtmDa
} ?F@%S3h.
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), f8n
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siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); {IM! Wb
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", kiUk4&1
nEndPos = " + nFileLength); pIO4,VL;W
// fileSplitterFetch[nPos.length-1].start(); T>d.#
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//等待子线程结束 ;ojiJ?jU
//int count = 0; Qvqqvk_tv
//是否结束while循环 `
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boolean breakWhile = false; s&tE_
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while(!bStop) >k(MUmhX
{ WUoOGbA `
write_nPos(); &M[f&_"8Q
Utility.sleep(500); Lp&k3?W
breakWhile = true; !1Y&Y@ze
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for(int i=0;i<nStartPos.length;i++) @WOM#Kc
{ y8
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if(!fileSplitterFetch.bDownOver) ?Rr2/W#F
{ [EZYsOr.
breakWhile = false; %&+59vq
break; PLR0#).n
}
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} 4IsG=7
if(breakWhile) Fo|xzLm9*|
break; w"zE_9I\
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//count++; d8x%SQ!V
//if(count>4) `8g7q 5
// siteStop(); -_0?_Cb
} 'Pd(\$ZY
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System.err.println("文件下载结束!"); 0kDBE3i#
} R: Z_g!h
catch(Exception e){e.printStackTrace ();} >fs2kha
} iEHh{H(
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//获得文件长度 lj[,|[X7`
public long getFileSize() gK1g]Tc @G
{ ?dq#e9
int nFileLength = -1; ?=On%bh
try{ M]rO;^ ;6?
URL url = new URL(siteInfoBean.getSSiteURL()); W`)<vGn=Y
HttpURLConnection httpConnection = (HttpURLConnection)url.openConnection (); gPXa>C
httpConnection.setRequestProperty("User-Agent","NetFox"); 2U$"=:Cf
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int responseCode=httpConnection.getResponseCode(); }*wLEa
if(responseCode>=400) {^ec(EsO#
{ 3YL
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processErrorCode(responseCode); l|"6yB |
return -2; //-2 represent access is error [M+tB"_
} F:g= i}7
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String sHeader; E`;;&V q-
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for(int i=1;;i++) [c&