/* jw]IpGTt
**SiteFileFetch.java ,=P0rbtK
*/ YC}$O2
package NetFox; v=H!Y";
import java.io.*; 87nsWBe
import java.net.*; CzT_$v_
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public class SiteFileFetch extends Thread { &J=x[{R
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SiteInfoBean siteInfoBean = null; //文件信息Bean b$FXRR\G
long[] nStartPos; //开始位置 F,XJGD*
long[] nEndPos; //结束位置 9a.[>4}
FileSplitterFetch[] fileSplitterFetch; //子线程对象 td+[Na0d
long nFileLength; //文件长度 1 z[blNs&
boolean bFirst = true; //是否第一次取文件 4_S%K&
boolean bStop = false; //停止标志 Zn'y"@%t[
File tmpFile; //文件下载的临时信息 T0}P 'q
DataOutputStream output; //输出到文件的输出流 ~0 n9In%
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//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) ::8E?c
public SiteFileFetch(SiteInfoBean bean) throws IOException CY9`HQ1
{ Fw;Y)y=O
siteInfoBean = bean; ..^,*
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); k_Edug~B
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); dk2o>jI4;
if(tmpFile.exists ()) ?/ s=E+
{ #/pZ#ny
bFirst = false; II_MY#0X
read_nPos(); Ia)^
} KL*UU,qU
else k?=V?JWY
{ Iyvl6
nStartPos = new long[bean.getNSplitter()]; SHPZXJ{
nEndPos = new long[bean.getNSplitter()]; \'N|1!EO|t
} Bb/aeLv
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} BcoE&I?[m|
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public void run() ~LzTqMHM
{ G,i%:my7
//获得文件长度 gM3gc;
//分割文件 LvS3c9|Aj
//实例FileSplitterFetch =;xlmndT,
//启动FileSplitterFetch线程 ;
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//等待子线程返回 /7zy5
try{ x]U (EX`t$
if(bFirst) kLqFh<
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nFileLength = getFileSize(); Sq==)$G
if(nFileLength == -1) HM1y$ej
{ yQ8H-a.
System.err.println("File Length is not known!"); k
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} @.iOFY
else if(nFileLength == -2) >heih%Ar0J
{ z*>CP
System.err.println("File is not access!"); cWM|COXL+
} I@q>ES!1H
else g^En6n)
{ aa1XY&G"!
for(int i=0;i<nStartPos.length;i++) ;7<a0HZ5!
{ j|(bDa4\
nStartPos = (long)(i*(nFileLength/nStartPos.length)); ArU>./)Q
} BmUzsfD
for(int i=0;i<nEndPos.length-1;i++) Xc5[d`]
{ :<IW'
nEndPos = nStartPos[i+1]; ikRIL2Y
} |,&!Q$<un
nEndPos[nEndPos.length-1] = nFileLength; RN:#+S(8
} *id|za|:k
} FZmYv%J
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//启动子线程 emS +%6U
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; k*c:%vC!
for(int i=0;i<nStartPos.length;i++) NI s4v(!
{ @#H{nj
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fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), v981nJ>w,
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), 7RD` *s
nStartPos,nEndPos,i); e?lqs,m@"
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); <p0$Q!^dK=
fileSplitterFetch.start(); 8h20*@wSN
} -{b1&
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), 6l
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siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); @7^#_772
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", [Iihk5TT
nEndPos = " + nFileLength); 3Yj}ra}
// fileSplitterFetch[nPos.length-1].start(); |PJW2PN
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//等待子线程结束 '7*=m^pc
//int count = 0; UXk8nH
//是否结束while循环 }5tn
boolean breakWhile = false; AYZds >#Q
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while(!bStop) C aJD*
{ )#ujF~w>
write_nPos(); Gj_b GqF8}
Utility.sleep(500); D[#\Y+N
breakWhile = true; -X}R(.}x
};!c]/,
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for(int i=0;i<nStartPos.length;i++) NJtB ;
{ eu:_V+
if(!fileSplitterFetch.bDownOver) ;W*$<~_
{ E0DEFB
breakWhile = false; eXaDx%mM
break; Rt:PW}rFf
} -<O:isB
} 6~/H#8Kdn
if(breakWhile) KnFbRhu[
break; #EM'=Q%TO
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//count++; |B`tRq
//if(count>4) ?GC0dN
// siteStop(); _INUJc
} t2SZ]|C
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System.err.println("文件下载结束!"); 5UM[Iz
} 5,((JxX$
catch(Exception e){e.printStackTrace ();} H= y-Y_R
} Le'\x`B
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//获得文件长度 dbXG?K][
public long getFileSize() mHMej@
{ ]1[;A$7
int nFileLength = -1; XN0Y#l
try{ U+i[r&{gb
URL url = new URL(siteInfoBean.getSSiteURL()); rh
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HttpURLConnection httpConnection = (HttpURLConnection)url.openConnection (); %%>?<4t
httpConnection.setRequestProperty("User-Agent","NetFox"); ZF/KV\Ag)
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int responseCode=httpConnection.getResponseCode(); fytx({I
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if(responseCode>=400) e](=)h|
{ ,{50zx2
processErrorCode(responseCode); <XagkD
return -2; //-2 represent access is error %dU}GYL_
} /YbL{G
)j}
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String sHeader; i=a LC*@
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