/* T`Jj$Lue{
**SiteFileFetch.java :Qekv(z
*/ !^h{7NmP[
package NetFox; l`V^d
import java.io.*; 0Xe?{!@a
import java.net.*; :tTP3t5
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public class SiteFileFetch extends Thread { XW2{I.:in>
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SiteInfoBean siteInfoBean = null; //文件信息Bean 8
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long[] nStartPos; //开始位置 m0$~O5|4
long[] nEndPos; //结束位置 -h|YS/$f
FileSplitterFetch[] fileSplitterFetch; //子线程对象 RY\[[eG
long nFileLength; //文件长度 !
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boolean bFirst = true; //是否第一次取文件 zmEg4 v'I
boolean bStop = false; //停止标志 FKVf_Ncf%
File tmpFile; //文件下载的临时信息 A2xfNY<
DataOutputStream output; //输出到文件的输出流 0+P[0
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//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) 2(%C
public SiteFileFetch(SiteInfoBean bean) throws IOException Ug=)_~
{ 6+Bccqn|
siteInfoBean = bean; Lfj]Y~*z
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); Ic,V,#my
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); Q9C;_Up
if(tmpFile.exists ()) X1J'
{ |."thTO
bFirst = false; @*s7~:VQ
read_nPos(); '4x uH3
} wFHz<i!jr&
else ta)'z@V @g
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nStartPos = new long[bean.getNSplitter()]; rF>7
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nEndPos = new long[bean.getNSplitter()]; FsXqF&{
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public void run() `~S; UG
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//获得文件长度 %Q2<bj]
//分割文件 iAWd
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//实例FileSplitterFetch __Tg1A
//启动FileSplitterFetch线程 PL6f**{-
//等待子线程返回 ~ v21b?
try{ bFt$u]Yvo
if(bFirst) y"o@?bny
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nFileLength = getFileSize(); ns/L./z
if(nFileLength == -1) }0(.HMiGj
{ hiM nU
System.err.println("File Length is not known!"); }c1?:8p
} kd3vlp
else if(nFileLength == -2) n\x@~ SzrX
{ cf7UV6D g
System.err.println("File is not access!"); hCX_^%
} <8_~60
else j1Q"s(
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for(int i=0;i<nStartPos.length;i++) DGY?4r7>y
{ S.$/uDwo
nStartPos = (long)(i*(nFileLength/nStartPos.length)); P+j5_ V{\b
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for(int i=0;i<nEndPos.length-1;i++) 0wlKBwf`J
{ =iEQE
nEndPos = nStartPos[i+1]; `r$c53|<u
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nEndPos[nEndPos.length-1] = nFileLength; tXWhq
} 9R6]OL)p
} y~ZYI]`
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//启动子线程 S~+er{,ht4
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; |_ u
for(int i=0;i<nStartPos.length;i++) TTSyDl
{ 1[&V6=n
fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), $QB~ x{v@n
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),
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nStartPos,nEndPos,i); ]3/_?n-"`
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); {0t-Q k
fileSplitterFetch.start(); &P,z$H{o@
} B{^ojV;]m
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), G7yR&x^
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); m[t4XK
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", btV
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nEndPos = " + nFileLength); nR2pqaKc
// fileSplitterFetch[nPos.length-1].start(); $ZEwz;HNo
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//等待子线程结束 'Rg6JW\
//int count = 0; "Om4P|
//是否结束while循环 pm 4"Q!K
boolean breakWhile = false; c%bGVRhE
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while(!bStop) i4XE26B;e
{ $0OWPC1
write_nPos(); GOII
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Utility.sleep(500); [|)Eyd[G
breakWhile = true; X4bB
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for(int i=0;i<nStartPos.length;i++) BnL [C:|
{ S.#IC
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if(!fileSplitterFetch.bDownOver) k-`5TmW
{ ZI0C%c.~
breakWhile = false; t;?TXAA
break; 6hvmp
} 42Vz6 k:
} X^!1MpEQ
if(breakWhile) {#]vvO2~$
break; I5$@1+B
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//count++; REe<k<>p~
//if(count>4) >Wbt_%dKy
// siteStop(); l1utk8'-
} s:fy
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System.err.println("文件下载结束!"); Gop;!aV1*
} u0M? l
catch(Exception e){e.printStackTrace ();} < SIe5"{
} !|1GraiS
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//获得文件长度 jQgy=;?Lwm
public long getFileSize() iO 9fg
{ j%V95M%$
int nFileLength = -1; Gh:hfHiG
try{ r@XH=[:
URL url = new URL(siteInfoBean.getSSiteURL()); _eE hIQ9
HttpURLConnection httpConnection = (HttpURLConnection)url.openConnection (); {);S6F$[3
httpConnection.setRequestProperty("User-Agent","NetFox"); J!5>8I(_wX
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int responseCode=httpConnection.getResponseCode(); V\ 7O)g
if(responseCode>=400) C]xKdPQj%
{ ZMI!Sl
processErrorCode(responseCode); 9AxeA2/X
return -2; //-2 represent access is error KqE5{ q
} )225ee>
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String sHeader; BM@:=>ypQ
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for(int i=1;;i++) has \W\(
{ ^F*G
//DataInputStream in = new DataInputStream(httpConnection.getInputStream ()); h5x_Vjj
//Utility.log(in.readLine()); +].Zs<