/* g>Y|9Y
**SiteFileFetch.java *#E
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*/ 6;u$&&c(
package NetFox; ~T9/#-e>BF
import java.io.*; |y&*MTfV4L
import java.net.*; Z8zmHc"IH
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public class SiteFileFetch extends Thread { q
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SiteInfoBean siteInfoBean = null; //文件信息Bean s@9vY\5[9
long[] nStartPos; //开始位置 { D^{[I
long[] nEndPos; //结束位置 _]yn"p
FileSplitterFetch[] fileSplitterFetch; //子线程对象 HIQ_%L4]
long nFileLength; //文件长度 0KYEb%44
boolean bFirst = true; //是否第一次取文件
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boolean bStop = false; //停止标志 )T';qm0w
File tmpFile; //文件下载的临时信息 RMK"o?
DataOutputStream output; //输出到文件的输出流 eb.O#Y
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//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) |rJ=Ksc
public SiteFileFetch(SiteInfoBean bean) throws IOException t0o`-d(
{ =o
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siteInfoBean = bean; ZNf6;%oGG
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); {)"iiJ
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); '>&^zgr
if(tmpFile.exists ()) } ~h3c|
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bFirst = false; U@gn;@\
read_nPos(); d\p,2
} ;gBRCZ
else 0*rQ3Z
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nStartPos = new long[bean.getNSplitter()]; 2r!s*b\Ix
nEndPos = new long[bean.getNSplitter()]; Zw*v
} )^m%i]L_
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} ERpnuMb
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public void run() V=zi
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{ Y,WuBH
//获得文件长度 #cnq(S=.
//分割文件 L[^9E'L$
//实例FileSplitterFetch {p;zuCF1
//启动FileSplitterFetch线程 ~;1l9^N|
//等待子线程返回 ~KW,kyXBnD
try{ Qj,]N@7
if(bFirst) 7[I}*3Q'
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nFileLength = getFileSize(); S/^"@?z,vE
if(nFileLength == -1) X}tVmO?
{ N$h{Yvbn
System.err.println("File Length is not known!"); &0NFb^8+
} 'XZ)!1N
else if(nFileLength == -2) O$IEn/%+
{ F{EnOr`,m=
System.err.println("File is not access!"); TR<<+
} w9NHk~LHKF
else jqv- D
{ ?%`@ub$
for(int i=0;i<nStartPos.length;i++) '@p['#\uI
{ v'VD0+3[H
nStartPos = (long)(i*(nFileLength/nStartPos.length)); &z>e5_.
} V>ieh2G(
for(int i=0;i<nEndPos.length-1;i++) 5#> 8MU?&
{ pV20oSJNt
nEndPos = nStartPos[i+1]; T'4z=Z]w
} *8#i$w11M
nEndPos[nEndPos.length-1] = nFileLength; %1O;fQL
} p$h4u_
} _h X]%
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//启动子线程 AI,(z;{P
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; Sg6"WV{<
for(int i=0;i<nStartPos.length;i++) V#cqRE3XNi
{ x/;bu W-
fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), ]T;EdK-
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), {)
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nStartPos,nEndPos,i); R,F[XI+=N
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); q>mE<
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fileSplitterFetch.start(); !R1.7}O
} qjf[zF
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), mH Ic f{RG
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); dZi(&s
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", '[C.|)"
nEndPos = " + nFileLength); H2um|6>
// fileSplitterFetch[nPos.length-1].start(); 7Garnd b
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//等待子线程结束
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//int count = 0; Eo#u#IY
//是否结束while循环 Q(<)KZIK
boolean breakWhile = false; VJdIHsI
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while(!bStop) /C>wd
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write_nPos(); MxY/`9>E|+
Utility.sleep(500); u>TZt]h8
breakWhile = true; -[6z 1"*
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for(int i=0;i<nStartPos.length;i++) ))&;}2{
{ m|=H#
if(!fileSplitterFetch.bDownOver) 0KGY\,ae:;
{ (N&lHLy
breakWhile = false; ,`gl&iB
break; d/bEt&
} mnmP<<8C,
} =$nB/K,8AX
if(breakWhile) .G+Pe'4a
break; P@,nA41,j
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//count++; &|!7Z4N
//if(count>4) T}"6wywM
// siteStop(); b@S Cn9
} PB#fP_0C
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System.err.println("文件下载结束!"); Gi "941zVl
} <