/* HFq m6|
**SiteFileFetch.java b9"jtRTdz
*/ '*Almv {
package NetFox; E7Ulnvd
import java.io.*; g/&T[FOr
import java.net.*; Cn_$l>
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public class SiteFileFetch extends Thread { cS. -7
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SiteInfoBean siteInfoBean = null; //文件信息Bean :aG#~-Q
long[] nStartPos; //开始位置 af|5n><~A
long[] nEndPos; //结束位置 suH&jE$ x
FileSplitterFetch[] fileSplitterFetch; //子线程对象 :d8W+|1u
long nFileLength; //文件长度 :iiw3#]
boolean bFirst = true; //是否第一次取文件 qClHP)<
boolean bStop = false; //停止标志 vfNAs>X g"
File tmpFile; //文件下载的临时信息 @VN&t:/ l
DataOutputStream output; //输出到文件的输出流 $HG}[XD?
{} Bf
//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) NjE</Empb%
public SiteFileFetch(SiteInfoBean bean) throws IOException }dxDtqb
{ f,z P*
siteInfoBean = bean; ?+c`]gO7N
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); \]9.zlB
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); D{v8q)5r
if(tmpFile.exists ()) !WkIi^T
{ "C?5f]T
bFirst = false; ?%O3Oi Xz
read_nPos(); E(Rh#+]Y5
} ]MtFf6&
else :y2p@#l#
{ UwY-7Mmo
nStartPos = new long[bean.getNSplitter()]; FA90`VOWYU
nEndPos = new long[bean.getNSplitter()]; q@hp.(V
} !TAp+b
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} pbHsR^
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public void run() 6+K_ Z\
{ $[@0^IJq=K
//获得文件长度 QO{y/{
//分割文件 dz#5q-r
//实例FileSplitterFetch JM.XH7k
//启动FileSplitterFetch线程 ExHAY|UA
//等待子线程返回 iP3Z
try{ K 3GSOD>
if(bFirst) i;PL\Er:tX
{ lo&#(L+2
nFileLength = getFileSize(); $mA5@O~C5\
if(nFileLength == -1) :Zw@yt
{ 7@%'wy&A
System.err.println("File Length is not known!"); 02JL*
} -m 5}#P89
else if(nFileLength == -2) 9O,,m~B
{ FrTg4
System.err.println("File is not access!"); ~:sE:9$z
} X7*`
else J?:[$ C5
{ 7q9gngT1LA
for(int i=0;i<nStartPos.length;i++) ;eB ~H[S/
{ mjnUs-`W|
nStartPos = (long)(i*(nFileLength/nStartPos.length)); Y\/gU8w/
} }ZZ5].-a<D
for(int i=0;i<nEndPos.length-1;i++) 1ywU@].6J]
{ 0_<Nc/(P
nEndPos = nStartPos[i+1]; s0LA^2U
} S9Y[4*//
nEndPos[nEndPos.length-1] = nFileLength; @y~P&HUN
} P]<= ! F
} 2C+(":=}
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//启动子线程 &y_? rH
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; \ a-CN>
for(int i=0;i<nStartPos.length;i++) o#i
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{ 89eq[ |G_
fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), 0my9l;X
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), .{rbw9
nStartPos,nEndPos,i); M[Y4_$k<-
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); cz.3|Lby
fileSplitterFetch.start(); Uxl(9 6
} 0'ZYO.y
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), nX
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siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); ;( KMGir
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", 2>y:N.
nEndPos = " + nFileLength); B%b_/F]e
// fileSplitterFetch[nPos.length-1].start(); $iJnxqn
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//等待子线程结束 ,nE&MeJ
//int count = 0; [yd6gH
//是否结束while循环 D9,!
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boolean breakWhile = false; 1Ii| {vR
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while(!bStop) S %+R#A1
{ %h* 5xB]Tt
write_nPos(); fPE ?hG<x
Utility.sleep(500); PNmF}"
breakWhile = true; z> :U{!5k
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for(int i=0;i<nStartPos.length;i++) UX}*X`{
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if(!fileSplitterFetch.bDownOver) Y+qus
{ ,kE=TR.|
breakWhile = false; C"No5r'K3
break; 3:" &Z6t#
} SQIdJG^:
} @W)/\AZ3
if(breakWhile) uHrb:X!q
break; 51/sTx<Z}
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//count++; &<{}8/x8(
//if(count>4) Qi|?d7k0
// siteStop(); Gbx";Y8
} X8.y4{5
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System.err.println("文件下载结束!"); (olLB
} \!7*(&yly
catch(Exception e){e.printStackTrace ();} nr<.YeJ
} cl2ze
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//获得文件长度 :'ihE\j
public long getFileSize() .hgH9$\
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int nFileLength = -1; 'M
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try{ #O><A&FrF`
URL url = new URL(siteInfoBean.getSSiteURL()); J2=*-O:
HttpURLConnection httpConnection = (HttpURLConnection)url.openConnection (); lkN'uZ
httpConnection.setRequestProperty("User-Agent","NetFox"); Jbkt'Z(&J
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int responseCode=httpConnection.getResponseCode(); ,=x
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if(responseCode>=400) GGp{b>E+
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{ }eI`Qg
processErrorCode(responseCode); e-jw^
return -2; //-2 represent access is error oM2|]ew)
} n'Bmz
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String sHeader; K^8@'#S
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