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**SiteFileFetch.java |h^]`= 3
*/ >eucQ]
package NetFox; ,HECHA_"
import java.io.*; a2SXg A
import java.net.*; :]uz0s`>
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public class SiteFileFetch extends Thread { ++Fv )KY@
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SiteInfoBean siteInfoBean = null; //文件信息Bean
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long[] nStartPos; //开始位置 h42dk(B
long[] nEndPos; //结束位置 xM2UwTpW
FileSplitterFetch[] fileSplitterFetch; //子线程对象 +~\ 1g^h
long nFileLength; //文件长度 G6q*U,
boolean bFirst = true; //是否第一次取文件
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boolean bStop = false; //停止标志 9?zi
File tmpFile; //文件下载的临时信息 SmCtwcB1
DataOutputStream output; //输出到文件的输出流 gtRVXgI
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//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) Tu&W7aoX5
public SiteFileFetch(SiteInfoBean bean) throws IOException ufvjW]
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siteInfoBean = bean; nXAGwU8a
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); bmI6OIWl
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); z6uHe{|
if(tmpFile.exists ()) ;&`6b:ug
{ /0(c-Dv
bFirst = false; BNq6dz$ J
read_nPos(); 5Mz6/&`
} vEC#W43l
else <8YIQA
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nStartPos = new long[bean.getNSplitter()]; u]MQ(@HHF
nEndPos = new long[bean.getNSplitter()]; Z}yd`7
} S t;@ZV
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} 35n'sVn
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public void run() V@pUU~6R
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//获得文件长度 ZDbzH=[
//分割文件 rj/1AK
//实例FileSplitterFetch L!0}&i;u~5
//启动FileSplitterFetch线程 r;@"s g
//等待子线程返回 FE3uNfQs|
try{ EpB3s{B"
if(bFirst) x<1t/o
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nFileLength = getFileSize(); O PJ(ub
if(nFileLength == -1) ?e2G{0V
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System.err.println("File Length is not known!"); C=8IQl[^e
} `*y%[J,I#
else if(nFileLength == -2) 3v>w$6
{ ih(A l<IS
System.err.println("File is not access!"); +c' n,O~3
} !112u#V
else V>& 1;n
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for(int i=0;i<nStartPos.length;i++) a^7QHYJ6
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nStartPos = (long)(i*(nFileLength/nStartPos.length)); ccwz:7r
} g4&f2D5
for(int i=0;i<nEndPos.length-1;i++) FXh*!%"*
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nEndPos = nStartPos[i+1]; iM M s3
} ?\_vqW
nEndPos[nEndPos.length-1] = nFileLength; lY[\eQ
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//启动子线程 R{UZCFZ
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; 5V8`-yO9
for(int i=0;i<nStartPos.length;i++) cp2a @
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fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), =55V<VI
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), 2hY"bpGW
nStartPos,nEndPos,i); k_`YVsEYP
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); lw_@(E]E
fileSplitterFetch.start(); aj]pN,g@N
} KN'twPFq
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), \0.!al0
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); 't+'rG6x
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", =Y*zF>#lP
nEndPos = " + nFileLength); 5h6-aQU[
// fileSplitterFetch[nPos.length-1].start(); \?[ m%$A
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//等待子线程结束 g=jB'h?
//int count = 0; '#lc?Y(pJ2
//是否结束while循环
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boolean breakWhile = false; MUUhg
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while(!bStop) =yZ6 $ hK
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write_nPos(); "qoJIwl#q
Utility.sleep(500); <`Qbb=*
breakWhile = true; aB{OXU}#
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for(int i=0;i<nStartPos.length;i++) wcW7k(+0
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if(!fileSplitterFetch.bDownOver) q+ka}@
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breakWhile = false; nPhREn!
break; {7.uwIW.1
} c=aVYQ"2
} ,.AXQ#~&`
if(breakWhile) >nO[5
break; 1rV9dM#F
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//count++; -qG7, t
//if(count>4) 1;HL=F
// siteStop(); 2 ]}e4@{
} Ct]? /
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System.err.println("文件下载结束!"); 4%7Oaf>9
} rEoOv
catch(Exception e){e.printStackTrace ();} 0yxwsBLy
} @B9#Hrc
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//获得文件长度 O@>{%u
public long getFileSize() at(gem
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int nFileLength = -1; A_+*b
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URL url = new URL(siteInfoBean.getSSiteURL()); o<rbC <
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HttpURLConnection httpConnection = (HttpURLConnection)url.openConnection (); JqtOoR
httpConnection.setRequestProperty("User-Agent","NetFox"); orhzeOi\
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int responseCode=httpConnection.getResponseCode(); ;Bat--K7+
if(responseCode>=400) v1$}JX
{ :<uCi\9(
processErrorCode(responseCode); d.k'\1o
return -2; //-2 represent access is error j6Au<P
} /UtSZ(
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String sHeader; Vu,:rPqI
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