/* ;]SP~kG
**SiteFileFetch.java 04R-}
*/ l%$co07cX
package NetFox; (Y]G6>
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import java.io.*; PQ[x A*
import java.net.*; GG[$-
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public class SiteFileFetch extends Thread { > v ]-B"Y
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SiteInfoBean siteInfoBean = null; //文件信息Bean X7&
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long[] nStartPos; //开始位置 Y/<
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long[] nEndPos; //结束位置 QOY M/1U
FileSplitterFetch[] fileSplitterFetch; //子线程对象 8&9'1X5)8_
long nFileLength; //文件长度 ;yg9{"O
boolean bFirst = true; //是否第一次取文件 2:& [r*
boolean bStop = false; //停止标志 2u'h,on?
File tmpFile; //文件下载的临时信息 "WHt9 yZ
DataOutputStream output; //输出到文件的输出流 Zw"K69A)
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//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) NKb,>TO
public SiteFileFetch(SiteInfoBean bean) throws IOException Qz/1^xy
{ ' fP`ET5
siteInfoBean = bean; 0CRk&_ht
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); ~b.e9FhdA
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); S4BU !
if(tmpFile.exists ()) w@ =U f7
{ %QrpFE5V5
bFirst = false; au 5qbP
read_nPos(); ;p 'Ej'E
} %{M&"M v
else :0RfA%
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nStartPos = new long[bean.getNSplitter()]; +cnBEv~y
nEndPos = new long[bean.getNSplitter()]; RP4P"m(
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public void run() 42mZ.,<
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//获得文件长度 g}=opw6z
//分割文件 n:wZL&ZV0
//实例FileSplitterFetch csay\Q{
//启动FileSplitterFetch线程 3fWL}]{<a
//等待子线程返回 COf>H0^%Q
try{ 41V}6+$g
if(bFirst) }hv" ku6!
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nFileLength = getFileSize(); =Wj{J.7mf]
if(nFileLength == -1) O}IRM|r"
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System.err.println("File Length is not known!"); IDpW5Dc
} _Q1[t9P"
else if(nFileLength == -2) MKN],l
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{ 9xm' 0 '
System.err.println("File is not access!");
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} /
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else )2jBhT
{ 9c_h+XN?y
for(int i=0;i<nStartPos.length;i++) vCh/%7+
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nStartPos = (long)(i*(nFileLength/nStartPos.length)); Mli`[8@(
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for(int i=0;i<nEndPos.length-1;i++) >C|i^4ppI
{ L'?0*t
nEndPos = nStartPos[i+1]; 9G@
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} T[YGQT|B
nEndPos[nEndPos.length-1] = nFileLength; ZNEWUt{+;^
} (NBq!;_2,x
} 7pY7iR_
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//启动子线程 8#MiM . f
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; Q{0!N8']"
for(int i=0;i<nStartPos.length;i++) 'sCj|=y2Qc
{ ZCbnDj
fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), VV1I2YcKt
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), tM$w0Cj
nStartPos,nEndPos,i); #, KjJ
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); ny]R,D0
fileSplitterFetch.start(); f2y:K6$'l*
} @m=xCg.Z
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), nd[{DF?)/
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); Tl9;KE|
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", fv",4L
nEndPos = " + nFileLength); c=}#8d.
// fileSplitterFetch[nPos.length-1].start(); LZB=vc|3/
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//等待子线程结束 0Lo)Ni^"
//int count = 0; ;x=kJ@
//是否结束while循环 TvzqJ=
boolean breakWhile = false; 9"H]zfW
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while(!bStop) ,L"1Ah
{ h!L/ZeRaV
write_nPos(); AMhHq/Dw
Utility.sleep(500); m*d {pX
breakWhile = true; !Deg!f\g
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for(int i=0;i<nStartPos.length;i++) 8a^E{x@HT
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if(!fileSplitterFetch.bDownOver) n8.W$ &-ia
{ .ZB(!v/2
breakWhile = false; 9f
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break; x dT1jI
} >2[\WF*"X
} /@<&{_sybp
if(breakWhile) "0(H! }D
break; U '#Xwax
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//count++; J\BTrN 7
//if(count>4) ;e>pu"#
// siteStop(); o-))R| ~z
} 8pQx6QE
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System.err.println("文件下载结束!"); t@`w}o[#
} _i=431Z40
catch(Exception e){e.printStackTrace ();} 7$l! f
} ._uXK[c7P
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//获得文件长度 JFyw,p&xB
public long getFileSize() {*Ag[HS0u
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int nFileLength = -1; H+oQ
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try{ t4RI%m\
URL url = new URL(siteInfoBean.getSSiteURL()); &.zG?e.
HttpURLConnection httpConnection = (HttpURLConnection)url.openConnection (); 't+
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httpConnection.setRequestProperty("User-Agent","NetFox"); V6:S<A
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int responseCode=httpConnection.getResponseCode(); "h-G=vo,kl
if(responseCode>=400) <}@*i
{ XA &