/* wY{-BuXv
**SiteFileFetch.java ^+>laOzC`8
*/ hc(#{]].
package NetFox; Uou1mZz/
import java.io.*; r4b 6 c
import java.net.*; T9E+\D
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public class SiteFileFetch extends Thread { x*\Y)9Vgy
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SiteInfoBean siteInfoBean = null; //文件信息Bean kYP#SH/
long[] nStartPos; //开始位置 $t'MSlF
long[] nEndPos; //结束位置 lwxaMjaL4K
FileSplitterFetch[] fileSplitterFetch; //子线程对象 '5#^i:
long nFileLength; //文件长度 1APe=tJ
boolean bFirst = true; //是否第一次取文件 Tt`u:ZwhF
boolean bStop = false; //停止标志 !3c\NbU
File tmpFile; //文件下载的临时信息 V# }!-Xj
DataOutputStream output; //输出到文件的输出流 I;,77PxD
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//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) a_^\=&?'
public SiteFileFetch(SiteInfoBean bean) throws IOException kr^P6}'
{ htO+z7
siteInfoBean = bean; ,a{P4Bq
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); ;>U2|>5V
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); :DK {Vg6
if(tmpFile.exists ()) P[G)sA_"
{ U|H=Y"pL
bFirst = false; g>E LGG|Q
read_nPos(); T8?Ghbn
} */5d>04
else 58}U^IW
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nStartPos = new long[bean.getNSplitter()]; y;m|
nEndPos = new long[bean.getNSplitter()]; n K1Slg#U
} TNT4<5Ol6
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} ~TF: .8
{ T/[cu<
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public void run() B-RjMxX4>
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//获得文件长度 np|Sy;:
//分割文件 Q^P}\wb>
//实例FileSplitterFetch |MTnH/|
//启动FileSplitterFetch线程 ?>9/#Nv
//等待子线程返回 zF`0J
try{ C!O0xhs
if(bFirst) lf`{zc r:
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nFileLength = getFileSize(); u4cnE"
if(nFileLength == -1) ?d\N(s9F
{ C$=%!wf
System.err.println("File Length is not known!"); A;q9rD,_
} +q<jAW A
else if(nFileLength == -2) RXMISt3+{y
{ #Qw0&kM7I
System.err.println("File is not access!"); olB.*#gA
} BiLY(1,
else @,j*wnR
{ /obfw^
for(int i=0;i<nStartPos.length;i++) vQG5*pR*w
{
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nStartPos = (long)(i*(nFileLength/nStartPos.length)); 6xmZXpd!
} *uRBzO}
for(int i=0;i<nEndPos.length-1;i++) ](]i 'fE>
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nEndPos = nStartPos[i+1]; h%na>G
} C\3rJy(VJ
nEndPos[nEndPos.length-1] = nFileLength; T3.&R#1M8-
} {_"<1C
} IxN9&xa
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//启动子线程 & bm
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fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; .bl/*s
for(int i=0;i<nStartPos.length;i++) +zN-!5x
{ RZ?jJm$
fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), G^|:N[>B
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), 9
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nStartPos,nEndPos,i); VR 8-&N
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); r| wS<cA2
fileSplitterFetch.start(); np^N8$i:n
} z]y.W`i
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), kPG-hD
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); %g$o/A$
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", vkV0On
nEndPos = " + nFileLength); ?3`UbN:
// fileSplitterFetch[nPos.length-1].start(); 'W^YM@
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//等待子线程结束 =U9*'EFr
//int count = 0; 9!\B6=r y4
//是否结束while循环 "Qc7dRmSxm
boolean breakWhile = false; yjX9oxhtL
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while(!bStop) e\l7Iu
{ >Eto(
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write_nPos(); :6
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Utility.sleep(500); CNyIQ}NJ
breakWhile = true; '3fu
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for(int i=0;i<nStartPos.length;i++) nPl?K:(
{ =z69e%.
if(!fileSplitterFetch.bDownOver) BhGu!Y6f
{ pofie$
breakWhile = false; u'DRN,h+
break; s Y Qk
} :U%W%
} VA_PvL.9
if(breakWhile) ^"2J]&x`G
break; mR:uj2*
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//count++; HCs?iJ
//if(count>4) WPMSm<[
// siteStop(); `?_Q5lp/s
} !)0;&e5
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System.err.println("文件下载结束!"); ChPmX+.i_
} )~JHgl
catch(Exception e){e.printStackTrace ();} cf20.F{<
} f+,qNvBY/
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//获得文件长度 /]Md~=yNp
public long getFileSize() | rtD.,m
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int nFileLength = -1; :>f )g
try{ 6}Ci>_i4#
URL url = new URL(siteInfoBean.getSSiteURL()); BG]#o|KW
HttpURLConnection httpConnection = (HttpURLConnection)url.openConnection (); f+)L#>Gl?
httpConnection.setRequestProperty("User-Agent","NetFox"); WO>nIo5Y
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int responseCode=httpConnection.getResponseCode(); 8^1 Te m
if(responseCode>=400) 08\,<9
{ V5>B])yQ
processErrorCode(responseCode); Flm%T-Dl
return -2; //-2 represent access is error Vv=. -&'
} ]Q3ADh
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String sHeader; wE`]7mA
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for(int i=1;;i++) HBXOjr<,{
{ SZ'R59Ee<
//DataInputStream in = new DataInputStream(httpConnection.getInputStream ()); w;amZgD>
//Utility.log(in.readLine()); Wt-GjxGi
sHeader=httpConnection.getHeaderFieldKey(i); Z=o2H Bm7
if(sHeader!=null) ?1
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{ j6 z^Tt12
if(sHeader.equals("Content-Length")) /7F:T[
{ kxhWq:[c
nFileLength = Integer.parseInt(httpConnection.getHeaderField(sHeader)); +\
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break; &B1Wt