/* 0L|A
**SiteFileFetch.java !X8:#a(
*/ w+Ag!O}.L
package NetFox; m]V5}-?al
import java.io.*; (CEJg|,
import java.net.*; #[2]B8NZ
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public class SiteFileFetch extends Thread { O||M
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SiteInfoBean siteInfoBean = null; //文件信息Bean %U'YOE6
long[] nStartPos; //开始位置 2rne=L
long[] nEndPos; //结束位置 z!eY=G'
FileSplitterFetch[] fileSplitterFetch; //子线程对象 'Exj|Y&
long nFileLength; //文件长度 \DpXs[1
boolean bFirst = true; //是否第一次取文件 |0dmdrKD
boolean bStop = false; //停止标志 #R@{Bu=C
File tmpFile; //文件下载的临时信息 R j1Z
DataOutputStream output; //输出到文件的输出流 F.K7w
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//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) CpO!xj+
public SiteFileFetch(SiteInfoBean bean) throws IOException uEH&]M>d_
{ ,qyH B2v
siteInfoBean = bean; dtr8u
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); MWu67">"
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); m8fxDepFA
if(tmpFile.exists ()) UV$v:>K#
{ 0d~>zKho
bFirst = false; 2vT>hC?oHz
read_nPos(); [P407Sa"
} 6I"Q9(
else |lrLTI^a
{ \_qiUvPf\
nStartPos = new long[bean.getNSplitter()]; tGe|@.!
nEndPos = new long[bean.getNSplitter()]; g!i\AMG?
} 94LFElE3
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public void run() G ,An8GR%&
{ Tt<Ry'Z$3
//获得文件长度 kK>PFk(
//分割文件 ojni+} >_
//实例FileSplitterFetch "JT R5;`w
//启动FileSplitterFetch线程 #/\5a;Elc
//等待子线程返回 f =B)jYI
try{ B>Mr/'
if(bFirst) Tj$D:xKf)
{ [R TB|0Q
nFileLength = getFileSize(); q4C$-W%rj
if(nFileLength == -1) icOh/G=N;
{ )<nr;n
System.err.println("File Length is not known!"); 89?$xm _m
} nJ<h}*[
else if(nFileLength == -2) E`}KVi57
{ /:iO:g1
System.err.println("File is not access!"); -Zh`h8gX
} l_Mi'}j
else -}_-#L!Q
{ %}t.+z(S
for(int i=0;i<nStartPos.length;i++) (sSMH6iCif
{ %{Ez0XwGCn
nStartPos = (long)(i*(nFileLength/nStartPos.length)); c4E=qgP
}
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for(int i=0;i<nEndPos.length-1;i++) rf?Q# KM\W
{ Z<T%:F
nEndPos = nStartPos[i+1]; Ju4={^#
} gh>'O/9
nEndPos[nEndPos.length-1] = nFileLength; ^kA^>vi
} zcnp?%
} 1$vsw
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//启动子线程 2A'!kd$2
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; U`Bw2Vdk]S
for(int i=0;i<nStartPos.length;i++) Uv?s <
{ Q$r1beA
fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), Vw0cf;
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), u?6L.^Op
nStartPos,nEndPos,i); gx~79;6
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); /ZlPEs)
fileSplitterFetch.start(); hDTiXc
} b.V\EOk
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), 1D159 NLB
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); 3}V`]B#a
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", X;25G
nEndPos = " + nFileLength); 4
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// fileSplitterFetch[nPos.length-1].start(); IMjz#|c
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//等待子线程结束 QwPLy O
//int count = 0; .4DX/~F
//是否结束while循环 ~7a(KJgvd"
boolean breakWhile = false; GZXBzZ}
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while(!bStop) zG)XB*c
{ j}}:&>;
write_nPos(); |eH>55 b
Utility.sleep(500); e%.Xya#\
breakWhile = true; Hg$t,\j
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for(int i=0;i<nStartPos.length;i++) m:U.ao6
{ gw[\7
if(!fileSplitterFetch.bDownOver) `@?f@p$(B
{ <,/k"Y=
breakWhile = false; 9ReH@5_bGM
break; Sz4G,c
} g_ 'F(An
} r,F~Vwa}
if(breakWhile) yM}b
break; R(_UR)G0 @
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