/* /;TD n>lq
**SiteFileFetch.java j}h%,
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*/ ,9:v2=C_
package NetFox; YS9)%F=X
import java.io.*; ciHTnC
import java.net.*; cw
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public class SiteFileFetch extends Thread { q<g!bW%
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SiteInfoBean siteInfoBean = null; //文件信息Bean '~6l
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long[] nStartPos; //开始位置 +I~U8v-
long[] nEndPos; //结束位置 7z&^i-l.
FileSplitterFetch[] fileSplitterFetch; //子线程对象 G~lnX^46"
long nFileLength; //文件长度 [/cJc%{N
boolean bFirst = true; //是否第一次取文件 {6*UtG
boolean bStop = false; //停止标志 G|$n,X1O(
File tmpFile; //文件下载的临时信息 \ ]h$8JwV
DataOutputStream output; //输出到文件的输出流 (n{!~'3
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//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) ^[ >
public SiteFileFetch(SiteInfoBean bean) throws IOException wrt^0n'r)c
{ BnLE+X
siteInfoBean = bean; @8GW?R
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); n*fsdo~
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); CpF&Vy K
if(tmpFile.exists ()) `]:&h'
{ }fKpih
bFirst = false; %]i("21
read_nPos(); ,t_Fo-i7vI
} |F#L{=B
else X>y6-%@
{ O(QJiS
nStartPos = new long[bean.getNSplitter()];
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nEndPos = new long[bean.getNSplitter()]; @z)_m!yV1
} GT"gB$Mh
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} B}y-zj;T
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public void run() "Q ~-C|x
{ #E(
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//获得文件长度 bJE$>
//分割文件 y$e'- v
//实例FileSplitterFetch <2a7>\74E0
//启动FileSplitterFetch线程 3%W
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//等待子线程返回 }~RH!Q1
try{ -IB~lw
if(bFirst) "K8<X
{ YbrsXp"
nFileLength = getFileSize(); v&EHp{8Qd
if(nFileLength == -1) Nz&J&\X)tD
{ P:")Qb2
System.err.println("File Length is not known!"); MyOdWD&7
} @"m?
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else if(nFileLength == -2) AdtAc$@xK
{ 7='M&Za
System.err.println("File is not access!"); In)#`E` g.
} 7
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else av1*i3
{ ;q&>cnLDR
for(int i=0;i<nStartPos.length;i++) $siiG|)C1
{ ,OLN%2Sq
nStartPos = (long)(i*(nFileLength/nStartPos.length)); u=I>DEe@c
} X}yEMe{T
for(int i=0;i<nEndPos.length-1;i++) 3`&2-
{ R4"g?
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nEndPos = nStartPos[i+1]; u8*Uia*vwH
} :_tsS)Q2m
nEndPos[nEndPos.length-1] = nFileLength; EY(@R2~#J
} ?<Dinq
} &Q^M[X
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//启动子线程 ,c6ID|\
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; p3*}! ez4
for(int i=0;i<nStartPos.length;i++) 74%,v|
{ 3_IuK6K2
fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), }`yIO"{8n
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), un[Z$moN"
nStartPos,nEndPos,i); )L`0VTw'M
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); z@cL<.0CE
fileSplitterFetch.start(); OFCOMM
} "7RQrz
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), Fk>/
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); (?&X<=|"
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", z48,{H6h
nEndPos = " + nFileLength); LZyUlz
// fileSplitterFetch[nPos.length-1].start(); 0vUX^<
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)k3zOKZ;
//等待子线程结束 {y'c*NS
//int count = 0; y1/$dn
//是否结束while循环 p,@_A'
boolean breakWhile = false; (eN\s98)/
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while(!bStop) w:&m_z#M
{ cxrUk$f
write_nPos(); cgm]{[f
Utility.sleep(500); d)(61
breakWhile = true; nvxftbfE^D
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for(int i=0;i<nStartPos.length;i++) 4)-LlYS_d<
{ Sq}hx
if(!fileSplitterFetch.bDownOver) *8fnxWR
{ #5N#^#r"
breakWhile = false; WtFv"$V
break; FlRbGg^
} a84^"GH7
} "N"9PTX
if(breakWhile) n!&DLB1z
break;
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//count++; oJUVW"X6
//if(count>4) *;(LKRV
// siteStop(); hJ>{`Tw
} jtV{Lf3<
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System.err.println("文件下载结束!"); OOGqtA;
} ]YQlCx`
catch(Exception e){e.printStackTrace ();} kV(}45i]s
} ~#&bDot
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//获得文件长度 ZTWbe
public long getFileSize() *
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{ 5u
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int nFileLength = -1; _y#t[|}w
try{ ><viJ$i
URL url = new URL(siteInfoBean.getSSiteURL()); "@RLS~Ej
HttpURLConnection httpConnection = (HttpURLConnection)url.openConnection (); suN{)"
httpConnection.setRequestProperty("User-Agent","NetFox"); {v}f/cu
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int responseCode=httpConnection.getResponseCode(); Y'&A~/Adf
if(responseCode>=400) Qa~o'
{ _|bIl%W;\'
processErrorCode(responseCode); M%7{g"J*
return -2; //-2 represent access is error -~~"}u
} ykH?;Xu
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String sHeader; w?d~c*4+
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