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**SiteFileFetch.java e+~\+:[?
*/ .
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package NetFox; \fG#7_wt
import java.io.*; Al}6q{E9+8
import java.net.*; p1Jh0o8
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public class SiteFileFetch extends Thread { A#.edVj.g4
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SiteInfoBean siteInfoBean = null; //文件信息Bean >/l? g5{
long[] nStartPos; //开始位置 /t+f{VX$
long[] nEndPos; //结束位置 zHA!%>%'
FileSplitterFetch[] fileSplitterFetch; //子线程对象 \-h%O
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long nFileLength; //文件长度 vB.E3 r=
boolean bFirst = true; //是否第一次取文件 9s\A\$("l
boolean bStop = false; //停止标志 ]^h]t~
File tmpFile; //文件下载的临时信息 #M9~L[nFS
DataOutputStream output; //输出到文件的输出流 L
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//负责整个文件的抓取,控制内部线程(FileSplitterFetch类)
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public SiteFileFetch(SiteInfoBean bean) throws IOException b$N2z
{ >3p\m
siteInfoBean = bean; '(U-(wTC'/
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); wPQH(~k:
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); C _'%NlJ'
if(tmpFile.exists ()) zr-*$1eu
{ _
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bFirst = false; z[b@V
read_nPos(); bo2H]PL*
} QoI3>Oj=
else [w0QZyUn
{ g%sluT[#
nStartPos = new long[bean.getNSplitter()]; ?qPo=~y01
nEndPos = new long[bean.getNSplitter()]; xN5)
} azCf
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} VJeu8ZJ.
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public void run() 3eb%OEMYk
{ <^VJy5>
//获得文件长度 ?M8dP%&r
//分割文件 D9<!mH
//实例FileSplitterFetch abuh`H#
//启动FileSplitterFetch线程 6V$Avg\6\
//等待子线程返回 +9M^7/}H
try{ X3{G:H0\p
if(bFirst) *w|:~g
{ QA<
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nFileLength = getFileSize(); BBaQ}{F8>2
if(nFileLength == -1) \K5DOM "#
{ vmU@^2JSJ
System.err.println("File Length is not known!"); m,VOx7%n
} Dt}JG6 S
else if(nFileLength == -2) ( Z619w
{ ZT'`hK_up
System.err.println("File is not access!"); }u\])I3
} qB~rQPa
else B;M?,<%FRU
{ q3mJ782p]
for(int i=0;i<nStartPos.length;i++) 3-[q4R
{ Bn^0^J-
nStartPos = (long)(i*(nFileLength/nStartPos.length)); T5R-B=YWu
} r A`V}>Xj
for(int i=0;i<nEndPos.length-1;i++) N nRD|A
{ eX?OYDDC0j
nEndPos = nStartPos[i+1]; UvJ}b
} QiQ_bB!\
nEndPos[nEndPos.length-1] = nFileLength; };mA^xO]j
} n&L+wqJ
} y<?kzt
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//启动子线程 &b.=M>\9Q
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; !`k1:@NZ
for(int i=0;i<nStartPos.length;i++) oL!EYbFD'Z
{ .t{MIC
fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), 9eGyyZg
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), ]q;Emy
nStartPos,nEndPos,i); FTX=Wyr
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); ,KF'TsFf
fileSplitterFetch.start(); bk[U/9Z\
} ed]=\Key
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), +Jlay1U&
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); Ar%%}Gx/
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", -Y1e8H ='
nEndPos = " + nFileLength); ^?-:'<4q$
// fileSplitterFetch[nPos.length-1].start(); @GPCwE1
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//等待子线程结束 tGD6AI1"I
//int count = 0; /1Qr#OJ(]
//是否结束while循环 H7?Vy bg~
boolean breakWhile = false; m.JBOq=
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while(!bStop) bh s5x
{ 10G}{
write_nPos(); 7P%%p3
Utility.sleep(500); P!$Zx)T
breakWhile = true; 2n,*Nd`
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for(int i=0;i<nStartPos.length;i++) <>n0arAn
{ !xz eM VI
if(!fileSplitterFetch.bDownOver) dah[:rP,n{
{ Z_PNI#h*
breakWhile = false; b}OY4~ Y4
break; TIx|L
} @:;)~V
} a[v0%W ]u
if(breakWhile) f"B3,6m
break; R]Vt Y7}i,
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//count++; /Y*WBTV'
//if(count>4) "HX<,l8f%
// siteStop(); tN[L@t9#cr
} `^91%f
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System.err.println("文件下载结束!"); Y}@&h!
} y6@0O%TDN
catch(Exception e){e.printStackTrace ();} u=Fv2
} B6=ebM`q
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//获得文件长度 DDvh4<Hk
public long getFileSize() ~aw.(A?MI
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int nFileLength = -1; "B8Q:
try{ M])ZK
URL url = new URL(siteInfoBean.getSSiteURL()); w;D+y*2
HttpURLConnection httpConnection = (HttpURLConnection)url.openConnection (); ?8HHA:GP
httpConnection.setRequestProperty("User-Agent","NetFox"); bf0+DvIB
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int responseCode=httpConnection.getResponseCode(); R= a|Blp
if(responseCode>=400) ai}mOyJs
{ <Q$@r?Mu]
processErrorCode(responseCode); 6Vww;1J
return -2; //-2 represent access is error ODZ5IO}v
} ]&?Y~"{cD
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String sHeader; 4B=2>k
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for(int i=1;;i++) Fd#?\r.
{ Ok>gh2e[c
//DataInputStream in = new DataInputStream(httpConnection.getInputStream ()); Y;nZ=9Sw
//Utility.log(in.readLine()); jATI&oX
sHeader=httpConnection.getHeaderFieldKey(i); BeCWa>54i
if(sHeader!=null) 4!$s}V=6
{ L}GC<D:
if(sHeader.equals("Content-Length")) vQ<90ZxqB
{ f5F@^QXQ
nFileLength = Integer.parseInt(httpConnection.getHeaderField(sHeader)); l6(-I
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break; rJFc({ 0
} ^?$WVB
} *ohL&