/* vQ*[tp#qU
**SiteFileFetch.java N~=I))i
*/ i1uoYb?4(I
package NetFox; ni2#20L
import java.io.*; :+/8n+@#
import java.net.*; n!z!fh
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public class SiteFileFetch extends Thread { [bHm-X]
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SiteInfoBean siteInfoBean = null; //文件信息Bean $"vz>SuB
long[] nStartPos; //开始位置 d2UidDU5qa
long[] nEndPos; //结束位置 3FR(gr$X
FileSplitterFetch[] fileSplitterFetch; //子线程对象 Ge`7`D>L
long nFileLength; //文件长度 YAc:QVT87
boolean bFirst = true; //是否第一次取文件 <ZSXOh,'
boolean bStop = false; //停止标志 `w
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File tmpFile; //文件下载的临时信息 HMF2sc$N
DataOutputStream output; //输出到文件的输出流 h]s6)tII
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//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) 3l?|+sU>O
public SiteFileFetch(SiteInfoBean bean) throws IOException AT1cN1:4?
{ R/v|ZvI
siteInfoBean = bean; u&Ic
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); p*c(dkOe8
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); by>%}#M
if(tmpFile.exists ()) Z2M(euzfi3
{ +JtK VF
bFirst = false; ,}IcQu'O
read_nPos(); C!^A\T7p
} MOQ6&C`7q
else k3$'K}=d
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nStartPos = new long[bean.getNSplitter()]; g,\kLTg
nEndPos = new long[bean.getNSplitter()]; -]0:FKW
} CBd%}il
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} Nl YFS?5
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public void run() .rk5u4yK
{ 5Hu[*
//获得文件长度 anW['!T9{s
//分割文件 ~Yd[&vpQ
//实例FileSplitterFetch 29J|eBvxx
//启动FileSplitterFetch线程 5.5kH$;>
//等待子线程返回 |/K|Vwa
try{ <}WSYK,zUY
if(bFirst) IaeO0\
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nFileLength = getFileSize(); )(G<(eiD
if(nFileLength == -1) tlQ6>v'
{ W]eILCo
System.err.println("File Length is not known!"); V5lUh#@TN&
} iO*5ClB
else if(nFileLength == -2) tM"vIz 05
{ dQIF'==6
System.err.println("File is not access!"); =7+%31
} KuwhA-IL
else :-d#kU
{ legWY)4D;
for(int i=0;i<nStartPos.length;i++) @2"3RmYLo
{ 5Yv*f:
nStartPos = (long)(i*(nFileLength/nStartPos.length)); D
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} Nmx\qJUR(
for(int i=0;i<nEndPos.length-1;i++) `
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{ (m2%7f.I
nEndPos = nStartPos[i+1]; 1SjVj9{:
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nEndPos[nEndPos.length-1] = nFileLength; 7=N%$]DKZ
} M%_*vD
} l\
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//启动子线程 5b rM..
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; Kc[^Pu
for(int i=0;i<nStartPos.length;i++) OF<:BaRs/
{ _:\rB
fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), Q(<A Yu
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), 'G65zz
nStartPos,nEndPos,i); sBZn0h@
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); ?M'CTz}<\
fileSplitterFetch.start(); |[n\'Xy;{
} --y,ky#
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), Pa{DB?P
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); g"sb0d9
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", 4-[U[JJc
nEndPos = " + nFileLength); lB _9b_|2
// fileSplitterFetch[nPos.length-1].start(); ?H8w;Csq-
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//等待子线程结束 FMCA~N
//int count = 0; W2XWb<QSEV
//是否结束while循环 :a Cf@:']
boolean breakWhile = false; 9K}DmS
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while(!bStop) x(u.(:V
{ -}TP)/!,*
write_nPos(); [cDDZ+6
Utility.sleep(500); (zsmJe
breakWhile = true; aW:*!d#
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for(int i=0;i<nStartPos.length;i++) j6^.Q/{^
{ ^kK")+K
if(!fileSplitterFetch.bDownOver) pWzYC@_W
{ a`yCPnB(
breakWhile = false; 4;~xRg;u&*
break; ww
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} br88b`L
} :@&e~QP(
if(breakWhile) 2A
break; ~L&z?'V
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//count++; a?Fz&BE
//if(count>4) @}UOm-M
// siteStop(); O(evlci
} N@0/=B[n
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System.err.println("文件下载结束!"); '`}D+IQ(j
} sifjmNP
catch(Exception e){e.printStackTrace ();} M GC=L .
} 9Q(Lnu
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//获得文件长度 }c8e t'HYf
public long getFileSize() %m lH
{ W{JR%Sq$
int nFileLength = -1; d>J
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try{ KDg%sgRu}
URL url = new URL(siteInfoBean.getSSiteURL()); /FXb,)1t
HttpURLConnection httpConnection = (HttpURLConnection)url.openConnection (); T^8`ji
httpConnection.setRequestProperty("User-Agent","NetFox"); 68~]_r.a
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int responseCode=httpConnection.getResponseCode(); 0RdW.rZJ
if(responseCode>=400) hT=E~|O
{ O:V.;q2]U
processErrorCode(responseCode); &K