/* w<THPFFF"
**SiteFileFetch.java {ixKc
*/ '[8w8,v(
package NetFox; rp<~=X
import java.io.*; G7`mK}J7
import java.net.*; J5jI/P
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public class SiteFileFetch extends Thread { @8m%*pBg
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SiteInfoBean siteInfoBean = null; //文件信息Bean "{E%Y*
long[] nStartPos; //开始位置 ~"\v(\P e
long[] nEndPos; //结束位置 Q'3tDc<
FileSplitterFetch[] fileSplitterFetch; //子线程对象 Z]{=Jy!F
long nFileLength; //文件长度 DeW{#c6
boolean bFirst = true; //是否第一次取文件 U&
boolean bStop = false; //停止标志 ._j?1Fw`
File tmpFile; //文件下载的临时信息 |P&
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DataOutputStream output; //输出到文件的输出流 G#`
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//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) zmD7]?|
public SiteFileFetch(SiteInfoBean bean) throws IOException p ]jLs|tat
{ n05GM.|*s
siteInfoBean = bean; A9]&w
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); \}n_Sk
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); 4noy!h
if(tmpFile.exists ()) .Ow8C
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bFirst = false; r7V !M1
read_nPos(); -{Ar5) ?='
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nStartPos = new long[bean.getNSplitter()]; [OOQ0c~
nEndPos = new long[bean.getNSplitter()]; ]G8"\J4 &
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public void run() +3XaAk
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//获得文件长度 P{%Urv{U
//分割文件 ^^!G{*F
//实例FileSplitterFetch :eL[nyQr
//启动FileSplitterFetch线程 U}Puq5[ ?
//等待子线程返回 uJ0'`Q?6R9
try{ nvwf!iU6
if(bFirst) [FF}HWf
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nFileLength = getFileSize(); :EYUBtTj
if(nFileLength == -1) n!SHExBp
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System.err.println("File Length is not known!"); `Xeiz'~f8
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else if(nFileLength == -2) 5wAKA`p"z
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System.err.println("File is not access!"); r: >RH,
} mqsAYzG
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for(int i=0;i<nStartPos.length;i++) !"RRw&0M
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nStartPos = (long)(i*(nFileLength/nStartPos.length)); Nr*X1lJ6
} w?8\9\ ;?
for(int i=0;i<nEndPos.length-1;i++) A1Uy|Dl
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nEndPos = nStartPos[i+1]; kMLJa=]$
} tEo-Mj5:
nEndPos[nEndPos.length-1] = nFileLength; NMhpKno
} rx9y^E5T`;
} ?>V>6cDQ
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//启动子线程 v#s*I/kw
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; z6B#F<h
for(int i=0;i<nStartPos.length;i++) W)T'?b'.
{ b]xoXC6@ t
fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), S!gzmkGcj
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), #M'V%^x P
nStartPos,nEndPos,i); zv;xxAX
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); [N9yWuc
fileSplitterFetch.start(); 0&CXR=U5
} [kxOv7a
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), [~\]<;;\
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); IqepR
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// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", PXtF#,roP
nEndPos = " + nFileLength); 3XDU(#
// fileSplitterFetch[nPos.length-1].start(); }hg2}g99
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