/* P#rwYPww\
**SiteFileFetch.java 8m-jU
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*/ M8S4D&vpD4
package NetFox; fs>0{
import java.io.*; lKH"PH7*_w
import java.net.*; Gash3}+
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public class SiteFileFetch extends Thread { D.R5-
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SiteInfoBean siteInfoBean = null; //文件信息Bean Kq6m5A]z
long[] nStartPos; //开始位置 ~iF*+\
long[] nEndPos; //结束位置 p~Dm3^Y
FileSplitterFetch[] fileSplitterFetch; //子线程对象 UxD1+\N6?
long nFileLength; //文件长度 sOU_j4M{
boolean bFirst = true; //是否第一次取文件 #BlH)Cv
boolean bStop = false; //停止标志 @YWfq$23
File tmpFile; //文件下载的临时信息 otX#}} +
DataOutputStream output; //输出到文件的输出流 &v3r#$Hj[
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//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) D1#E&4
public SiteFileFetch(SiteInfoBean bean) throws IOException ((;9%F:/$
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siteInfoBean = bean;
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//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); v+G}n\F
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); ]WyV~Dzz<
if(tmpFile.exists ()) b^hCm`2w*
{ }[ux4cd8Y
bFirst = false; ot(|t4^
read_nPos(); LUS7-~:F
} rw_&t>Ri;
else '>'h7F=tY
{ EkWe6m
nStartPos = new long[bean.getNSplitter()]; Qpf BM
nEndPos = new long[bean.getNSplitter()]; U|U/B
} ) : Q5u6
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} v`beql
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public void run() ]2b" oHg
{ kFD-
//获得文件长度 SL@Vk(
//分割文件 fVR ~PG0
//实例FileSplitterFetch hTVN`9h7
//启动FileSplitterFetch线程 >SfC '* 1
//等待子线程返回 j]
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try{ ~R!(%j ]
if(bFirst) O aF+Z@s
{ 0SvPyf%AC
nFileLength = getFileSize(); >2$Ehw:K^
if(nFileLength == -1) )m5<gp `
{ y<3v/,Y
System.err.println("File Length is not known!"); G/<{:R"
} /:awPYGH<1
else if(nFileLength == -2) #c/v2
{ \4zvknk<
System.err.println("File is not access!"); r]0 o
} ;}|.crMF
else aoF>{Z4&B
{ L)B?p!cdLT
for(int i=0;i<nStartPos.length;i++) o L6[i'H|
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nStartPos = (long)(i*(nFileLength/nStartPos.length)); @@ZcW<Y"
} :MJBbrV
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for(int i=0;i<nEndPos.length-1;i++) / HaS.
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nEndPos = nStartPos[i+1]; hh: )"<[
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nEndPos[nEndPos.length-1] = nFileLength;
]
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} Q&M(wnl5
} 1Rp|*>
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//启动子线程 &Lq @af#
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; O]{H2&k@
for(int i=0;i<nStartPos.length;i++) X8;03EW;
{ unD8h=Z2
fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), o/=K:5
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), #+ n
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nStartPos,nEndPos,i); Hyee#fB
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); 1egryp
fileSplitterFetch.start(); -P'>~W,~
} 39~fP)
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), ]]d@jj
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); {'r(P&
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", JmN;v|wF:c
nEndPos = " + nFileLength); WNL3+
// fileSplitterFetch[nPos.length-1].start(); }[i35f[w
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//等待子线程结束 \N"K^kR4
//int count = 0; rt~X(S
//是否结束while循环 YrZAy5\
boolean breakWhile = false; cMK6
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while(!bStop) c1:op@t
{ G9VzVx#T#
write_nPos(); CqrmdWN
Utility.sleep(500); cRU.
breakWhile = true; ]/d2*#
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for(int i=0;i<nStartPos.length;i++) hj4A&`2
{ 9lA YCsX
if(!fileSplitterFetch.bDownOver) ?hDEFW9&^x
{ Ud{-H_m+
breakWhile = false; luC',QJB
break; 8,kbGlSD
} #+_OyZ*
} vZ|-VvG
if(breakWhile) I;mtyS
break; 4]
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//count++; \uanQ|Nu
//if(count>4) F7"Ihb^l
// siteStop(); Gl1`Nx0
} J`"1DlH
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System.err.println("文件下载结束!"); F ^E(AE
} u)Y#&q