/* /'&LM\
**SiteFileFetch.java -(EqBr@_
*/ :JYOC+#q7
package NetFox; ] W_T(C*
import java.io.*; OHw6#N$\
import java.net.*; 9'M_t Mm5
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public class SiteFileFetch extends Thread { iVcBD0 q)
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SiteInfoBean siteInfoBean = null; //文件信息Bean 9^tyjX2
long[] nStartPos; //开始位置 {PKER$C
long[] nEndPos; //结束位置 \!3='~2:=o
FileSplitterFetch[] fileSplitterFetch; //子线程对象 n9^zAcUbAW
long nFileLength; //文件长度 o%a$m9I
boolean bFirst = true; //是否第一次取文件 3'wBX
boolean bStop = false; //停止标志 M*N8p]3Cq
File tmpFile; //文件下载的临时信息 )UJMmw\
DataOutputStream output; //输出到文件的输出流 D[mYrWHpn
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//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) <#-ERQw
public SiteFileFetch(SiteInfoBean bean) throws IOException )j]RFt
{ Lnzhs;7L
siteInfoBean = bean; :>k\uW
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); ilP&ctn6+c
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); ,J~dER\%
if(tmpFile.exists ()) ;1nd~0o
{ q,GL#L
bFirst = false; YS*t7
read_nPos(); ]nh)FMo
} uRIr,U^
else f8lww)^,v
{ e+mD$(h
nStartPos = new long[bean.getNSplitter()]; 809-p_)B
nEndPos = new long[bean.getNSplitter()]; K5$ y
} !FO)||'[
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public void run() *K;~V
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//获得文件长度 =ZQIpc
//分割文件 IYWD_}_
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//实例FileSplitterFetch #?9oA4Q
//启动FileSplitterFetch线程 Jj!T7f*-GX
//等待子线程返回 '&Ku Ba
try{ - M]C-$
if(bFirst) 9SPu 4i
{ ?6Gq &
nFileLength = getFileSize(); 5>HI/QG
if(nFileLength == -1) PJLA^e C7>
{ Dz?F,g_
System.err.println("File Length is not known!"); _?ym,@}#
} Z+?j8(:n
else if(nFileLength == -2) MAXdgL[]
{ Z8 x(_ft5
System.err.println("File is not access!"); G9
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} }7V/(K
else z)26Ahm TV
{ sYz:(hZS
for(int i=0;i<nStartPos.length;i++) xASjw?
{ __QTlj
nStartPos = (long)(i*(nFileLength/nStartPos.length)); y!#1A?|k
} Umqm5*P(
for(int i=0;i<nEndPos.length-1;i++) a4wh-35/
{ (n<xoV[e
nEndPos = nStartPos[i+1]; 46vz=# ,6L
} <1y%ch;
nEndPos[nEndPos.length-1] = nFileLength; UX?_IgJh<"
} 0V^?~ex
} Abl=Ev
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//启动子线程 @*oi1_q
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; TzOf&cs/r
for(int i=0;i<nStartPos.length;i++) tFGLqR%/
{ it.l;L_nW
fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), `27? f$,
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), Kl*##qw!
nStartPos,nEndPos,i); 9u9#&xx
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); "x{S3v4Rb5
fileSplitterFetch.start(); GXAcyOV
} Uz0mSfBp
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), G
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siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); ]?kf;A@
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", a}wB7B;,g
nEndPos = " + nFileLength); 6ugBbP +^
// fileSplitterFetch[nPos.length-1].start(); K46\Rm_:B;
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//等待子线程结束 %spR7J\"/
//int count = 0; /XXW4_>
//是否结束while循环 \^+sgg{
boolean breakWhile = false; Rzb] mM
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while(!bStop) eq"~by[Uq
{ ^}WeBU
write_nPos(); @g{=f55
Utility.sleep(500); u+Li'Ug
breakWhile = true; C}Khh`8@5.
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for(int i=0;i<nStartPos.length;i++) k,r\^1h
{ ,xGlWH wrY
if(!fileSplitterFetch.bDownOver) P6X 4m(t
{ NE(6`Wq`
breakWhile = false; Cc=`:ED+
break; 9 Hm!B )Y
} Jzr(A^vwo
} U $+rlw}
if(breakWhile) l_8t[
break; O9opX\9
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//count++; 3&}wfK]X
//if(count>4) /_ LUys/0
// siteStop(); 7c+u+Yet
} %3q@\:s
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System.err.println("文件下载结束!"); r`"
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} U'@_fg
catch(Exception e){e.printStackTrace ();} d=xweU<
} 7OT}V}iP
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//获得文件长度 A}$A~g5Ap
public long getFileSize() 8Uc#>Ae'_
{ s,0,w--=
int nFileLength = -1; e'u9 SpJ
try{ _$1W:!f4
URL url = new URL(siteInfoBean.getSSiteURL()); w{0UA6 +
HttpURLConnection httpConnection = (HttpURLConnection)url.openConnection (); ;VvqKyUh7`
httpConnection.setRequestProperty("User-Agent","NetFox"); #j@Su )+
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int responseCode=httpConnection.getResponseCode(); VDscZt)y8
if(responseCode>=400) T9u/|OP
{ B=9|g1e
processErrorCode(responseCode); E9|i:
return -2; //-2 represent access is error h8n J$jg
} ?+51 B-
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String sHeader; >V NMQ
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for(int i=1;;i++) iA=9Lel
{ Nn%{Ka
//DataInputStream in = new DataInputStream(httpConnection.getInputStream ()); Jln dypE
//Utility.log(in.readLine()); +`\C_i-
sHeader=httpConnection.getHeaderFieldKey(i); 8on2BC2
if(sHeader!=null) ]F-{)j
{ 7:;P>sF@
if(sHeader.equals("Content-Length")) Byon2| nf7
{ OrHnz981K
nFileLength = Integer.parseInt(httpConnection.getHeaderField(sHeader)); lB,.TK
break; xAsbP$J:
} Ww@Rewo
} zX(p\NU
else X1$0'usS
break; L7 qim.J
} AWGeK-^
} K47W7zR
catch(IOException e){e.printStackTrace ();} Io|
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catch(Exception e){e.printStackTrace ();} LR}b^QU7
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Utility.log(nFileLength); *y7^4I-J
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