/* 0c#|LF_
**SiteFileFetch.java # f{L;
*/ Yceex}X*5
package NetFox; x A ZRl
import java.io.*; 0vz!)
import java.net.*; H%Sx*|
.V^h< d{
HtI>rj/\
x
public class SiteFileFetch extends Thread { @v\jL+B+m
| i'w"Tz4
Ef6LBNWY.
SiteInfoBean siteInfoBean = null; //文件信息Bean hniTMO
long[] nStartPos; //开始位置 (7PVfS>;
long[] nEndPos; //结束位置 %aJ8wYj*
FileSplitterFetch[] fileSplitterFetch; //子线程对象 LTio^uH
long nFileLength; //文件长度 m3b?f B
boolean bFirst = true; //是否第一次取文件 1b"3]?
boolean bStop = false; //停止标志 }l@7t&T|
File tmpFile; //文件下载的临时信息 Q"{Q]IT
DataOutputStream output; //输出到文件的输出流 V_Y2 @4
MW.,}f
//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) !L'O")!3
public SiteFileFetch(SiteInfoBean bean) throws IOException U| 1&=8l
{ )RwO2H
siteInfoBean = bean; oth=#hfU^
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); hrnY0
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); V^p XbDRl
if(tmpFile.exists ()) q/\Hh9`
{ \E:l
E/y
bFirst = false; '#Y[(5
read_nPos(); Nxt z1
} \M-$|04Qt
else LfS]m>>e
{ )pt#Pu
nStartPos = new long[bean.getNSplitter()]; NY~y:*:Q
nEndPos = new long[bean.getNSplitter()]; "/U~j4O
} ,`l8KRd
_;5N@2?
gNo}\
lm4V
V_7QWIdiy>
} vJ!<7 l&
fyt`$y_E[
N]@e7P'9F
public void run() 'WQ<|(:{
{ |-k~Fa
//获得文件长度 EPwM+#|e-
//分割文件 !F*CE cB
//实例FileSplitterFetch DC%H(2
//启动FileSplitterFetch线程 \rf2Os
//等待子线程返回 Dmv@ljwO
try{ 0_-NE4SM/
if(bFirst) %Nm69j-5%
{ f<~S0[H
nFileLength = getFileSize(); }>u<,
if(nFileLength == -1) ~C2[5r{So
{ -7l)mk
System.err.println("File Length is not known!"); Z vO,1B
} 6P*2Kg`
else if(nFileLength == -2) ^c]lEo
{ :>otlI<0t
System.err.println("File is not access!"); q'awV5y
} E#cZM>
else .9;wJ9Bw[
{ 5%Q[X
for(int i=0;i<nStartPos.length;i++) (|<.7K N
{ vy330SQPo
nStartPos = (long)(i*(nFileLength/nStartPos.length)); QZ51}i
} qy|si4IU8,
for(int i=0;i<nEndPos.length-1;i++) VjVL/SO/
{ %7bZnK`C
nEndPos = nStartPos[i+1]; LK[%}2me
} X>y6-%@
nEndPos[nEndPos.length-1] = nFileLength; b}#ay2AR
} u0& dDZ
} oVSq#I4
;iEFG^'tG
KUqD<Jj?
//启动子线程 HNtl>H
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; ?rn#S8nNx<
for(int i=0;i<nStartPos.length;i++) *b0f)y3RV
{ P*;zDQy
fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), Xz, sL
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), +b]+5!
nStartPos,nEndPos,i); <+c6CM$#}V
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); 7&z`N^dz{
fileSplitterFetch.start(); "ewB4F[
} q9&d24|
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), ^g56:j~?
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); =-qv[;%&6
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", #I.Wmfz
nEndPos = " + nFileLength); n7S~nk
// fileSplitterFetch[nPos.length-1].start(); Eo }mSd
xc+h
Fx
F$Q@UVA
//等待子线程结束 *Q8d&$ ^
//int count = 0; &ii3V