/* C`#N
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**SiteFileFetch.java Y$Ke{6 4
*/ GbE3:;JI
package NetFox; vOj$-A--qU
import java.io.*; d{trO;%#f
import java.net.*; LtU+w*Gj
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public class SiteFileFetch extends Thread { T*ic?!
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SiteInfoBean siteInfoBean = null; //文件信息Bean [<`+9R
long[] nStartPos; //开始位置 Aa Ma9hvT!
long[] nEndPos; //结束位置 'oEmbk8Hg
FileSplitterFetch[] fileSplitterFetch; //子线程对象 i~9)Hz;!
long nFileLength; //文件长度 Cn<kl^!Q-
boolean bFirst = true; //是否第一次取文件 |S8pq4eKJ_
boolean bStop = false; //停止标志 C,]Ec2
File tmpFile; //文件下载的临时信息 GGuLxc?(
DataOutputStream output; //输出到文件的输出流 3TtW2h>M
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//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) #.='dSj
public SiteFileFetch(SiteInfoBean bean) throws IOException Xo5L:(?K
{ i,HAXPi
siteInfoBean = bean; ,@;<u'1\G
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); [y:LA~q
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); \'KzSkC8
if(tmpFile.exists ()) QezK&iJg
{ ?l (hS\N,
bFirst = false; zN:752d^+r
read_nPos(); Cf N; `
} <>Im$N ai
else ,rdM{ r
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nStartPos = new long[bean.getNSplitter()]; 3/e !7
nEndPos = new long[bean.getNSplitter()]; 1%+^SR72
} YH>n{o;-
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} r__M1
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#? *jdN:
public void run() d0^2<
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//获得文件长度 P:vy
//分割文件 O+N-x8W{
//实例FileSplitterFetch t]ZSo-
//启动FileSplitterFetch线程 !jbjrzv9
//等待子线程返回 T,fz/5w
try{ z|2liQrf+
if(bFirst) KOQTvJ_#
{ Bz{
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nFileLength = getFileSize(); /b|sv$BN
if(nFileLength == -1) xpk|?/6
{ 9wC; m :
System.err.println("File Length is not known!"); k
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} c>Se Onf
else if(nFileLength == -2) ;GAYcVB
{ W#[!8d35$
System.err.println("File is not access!"); f/x "yUq
} Xwi&uyvU&
else TG9)x|!
{ p1nA7;B-m
for(int i=0;i<nStartPos.length;i++) 2&m7pcls
{ L7- nPH
nStartPos = (long)(i*(nFileLength/nStartPos.length)); nM`) `!/
} -ZB"Yg$l
for(int i=0;i<nEndPos.length-1;i++) Exr7vL
{ 7E95"B&w
nEndPos = nStartPos[i+1]; R;o_ *
} dc)Gk
nEndPos[nEndPos.length-1] = nFileLength; -eMRxa>
} qAS^5|(b[
} Nt8(
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//启动子线程 W<Lrfo&=Y]
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; g$b*#
for(int i=0;i<nStartPos.length;i++) .IXwa,
{ pA'A<|)K0
fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), ? la_ +;m
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), * 5n:+Tw(
nStartPos,nEndPos,i); J%)2,szn0
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); w%;'uN_
fileSplitterFetch.start(); 5[_8N{QC;
} o1Ln7r.
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), zTLn*?
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); Sg-xm+iSDt
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", |BW,pT
nEndPos = " + nFileLength); S2)S/ nf
// fileSplitterFetch[nPos.length-1].start(); _ LNPB$P
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