/* HfeflGme*
**SiteFileFetch.java 6`5
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*/ #ZnX6=;X
package NetFox;
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import java.io.*; )Fr;'JYC1S
import java.net.*; ^B6i6]Pd=9
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public class SiteFileFetch extends Thread { J0*]6oD!
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SiteInfoBean siteInfoBean = null; //文件信息Bean )6R#k8'ERr
long[] nStartPos; //开始位置 !9<RWNKV)Y
long[] nEndPos; //结束位置 3ws(uF9$
FileSplitterFetch[] fileSplitterFetch; //子线程对象 wyA(}iSq
long nFileLength; //文件长度 ~G^}2#5
boolean bFirst = true; //是否第一次取文件 53+rpU_
boolean bStop = false; //停止标志 eN?P) ,
File tmpFile; //文件下载的临时信息 $E_vCB_
DataOutputStream output; //输出到文件的输出流 kcz#8K]~
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//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) )! *M
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public SiteFileFetch(SiteInfoBean bean) throws IOException Q3O .<9S
{ W0T
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siteInfoBean = bean; <pl2
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//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); %d#)({N
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); $J0~2TV<
if(tmpFile.exists ()) Gx* 0$4xJ3
{ k| cI!
bFirst = false; [oN> :
read_nPos(); 6ewOZ,"j"4
} >]Yha}6h
else #IrP"j^
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nStartPos = new long[bean.getNSplitter()]; |tJ%:`DGw
nEndPos = new long[bean.getNSplitter()]; #`L}.
} &eS70hq
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} }nY^T&?`
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public void run() WAmoKZw2
{ R6$F<;nw
//获得文件长度 GV@E<dg$R
//分割文件 <^'+]?
//实例FileSplitterFetch jhbH6=f4]^
//启动FileSplitterFetch线程 {2clOUi
//等待子线程返回 _,0!ZP-
try{ @N_H]6z4
if(bFirst) od's1'cR
{ x)wt.T?eL
nFileLength = getFileSize(); ~)8i5p;P/k
if(nFileLength == -1) |Ge/|;.v`
{ ,p`bWm
System.err.println("File Length is not known!"); R}6la.mQ
} Tocdh.H|
else if(nFileLength == -2) "XsY~
{ 1@z@
System.err.println("File is not access!"); ow$l!8
} 2Yd~v|
else O*/-I
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{ GJt9hDM$0
for(int i=0;i<nStartPos.length;i++) 3N*C]
{ NE%yv,B
nStartPos = (long)(i*(nFileLength/nStartPos.length)); C(*@-Npf[
} S!!\!w>N
for(int i=0;i<nEndPos.length-1;i++) 2/4x]i
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{ .'mC3E+$
nEndPos = nStartPos[i+1]; F20-!b
} `&[:!U2]F
nEndPos[nEndPos.length-1] = nFileLength; YJvT
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} -&D6w9w
} f#Cdx"
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//启动子线程 %c/"A8{ eb
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; Afhx`J1KO
for(int i=0;i<nStartPos.length;i++) :XZom+>2n
{ {#M{~
fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), >37}JUG
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),
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nStartPos,nEndPos,i); 'yRv~BA
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); mf_'|
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fileSplitterFetch.start(); m9w
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} I%C:d#p
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), Bo\v-97
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); ?F!J@Xn5
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", 5N+(Gv[`"
nEndPos = " + nFileLength); F8;4Oj
// fileSplitterFetch[nPos.length-1].start(); s ^R2jueR
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//等待子线程结束 \0T*msYQ
//int count = 0; Xt*%"7yTp
//是否结束while循环 f /i,Zw
boolean breakWhile = false; +9rbQ?'
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while(!bStop) -vfu0XI~
{ f_2^PF>?
write_nPos(); 5nqdY*
Utility.sleep(500); 9}$dwl(
breakWhile = true; D c.W vUM
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for(int i=0;i<nStartPos.length;i++) n(Op<
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if(!fileSplitterFetch.bDownOver) {&qsh9ob
{ L\CM);y
breakWhile = false; G*p.JsZP
break; O|zmDp8a+
} ?ML<o>OKg
} /M `y LI
if(breakWhile) ,5uDEXpt{
break; 8vo7~6yy
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//count++; B_jI!i{N%o
//if(count>4) }C`0"
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// siteStop(); 8&hn$~ate
} Dohe(\C@
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System.err.println("文件下载结束!"); >M85xjXP
} 7gmMqz"z(>
catch(Exception e){e.printStackTrace ();} *`'%tp"'+
} ,8?*U]}
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//获得文件长度 =C1Qo#QQ%
public long getFileSize() ([o:_5/8I
{ ]=<@G.[=
int nFileLength = -1; J
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try{ ,?~,"IQyi[
URL url = new URL(siteInfoBean.getSSiteURL()); pR>QIZq<gT
HttpURLConnection httpConnection = (HttpURLConnection)url.openConnection (); %~XJwy-
httpConnection.setRequestProperty("User-Agent","NetFox"); z4:09!o_
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int responseCode=httpConnection.getResponseCode(); g c=|<(
if(responseCode>=400) -3U}
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{ 7B"aFnK;[J
processErrorCode(responseCode); )W JI=jl
return -2; //-2 represent access is error $:Zxb
} lfd{O7 L0b
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String sHeader; GQxJ (f
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for(int i=1;;i++) PP|xIAc
{ $&
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//DataInputStream in = new DataInputStream(httpConnection.getInputStream ()); w`f~Ht{wYR
//Utility.log(in.readLine()); !&