/* 7.7P>U
**SiteFileFetch.java 0.C[/ u[
*/ Xr'Y[E[
package NetFox; AX3iB1):K
import java.io.*; !\w@b`Iv8
import java.net.*; I?c "\Fe
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public class SiteFileFetch extends Thread { EwDFU K
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SiteInfoBean siteInfoBean = null; //文件信息Bean N T+%u-
long[] nStartPos; //开始位置 |35"V3bs
long[] nEndPos; //结束位置 aoj6/
FileSplitterFetch[] fileSplitterFetch; //子线程对象 | LdDL953
long nFileLength; //文件长度 1}nrVn[B9
boolean bFirst = true; //是否第一次取文件 ~k>H4hV3
boolean bStop = false; //停止标志 ?IgM=@
File tmpFile; //文件下载的临时信息
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DataOutputStream output; //输出到文件的输出流 K. [2uhB)
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//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) 1KwUp0%&
public SiteFileFetch(SiteInfoBean bean) throws IOException iV<4#aBg
{ 1_$ybftS
siteInfoBean = bean; _0^f
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); %%`Q5I
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); /J{
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if(tmpFile.exists ()) z Ic%>?w
{ #+dF3]X(&
bFirst = false; AmYqrmJ
read_nPos(); Yzo_ZvL
} &ru2&Sz
else >
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{ $M%<i~VXe&
nStartPos = new long[bean.getNSplitter()]; W~(4t:hp
nEndPos = new long[bean.getNSplitter()]; (
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} b
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public void run() es]S]}JV
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//获得文件长度 tx0`#x
//分割文件 9?M>Y?4
//实例FileSplitterFetch .A 12Co
//启动FileSplitterFetch线程 }EFMJ,NQ
//等待子线程返回 ^|Bpo(
try{ #a7 Wx}
if(bFirst) \X&LrneR"t
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nFileLength = getFileSize(); bEx8dc`Q
if(nFileLength == -1) NlLgXn!
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System.err.println("File Length is not known!"); .FV
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} t<sy7e='
else if(nFileLength == -2) N=4`jy =
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System.err.println("File is not access!"); 1 /@lZ
} g+CTF67
else ::'DWD1
{ MZ9{*y[z
for(int i=0;i<nStartPos.length;i++) N0U6N< w
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nStartPos = (long)(i*(nFileLength/nStartPos.length)); t4HDt\}&k~
} St9+/Md=jQ
for(int i=0;i<nEndPos.length-1;i++) Y ;qA@|
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nEndPos = nStartPos[i+1]; #fT1\1[]
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nEndPos[nEndPos.length-1] = nFileLength; /eFudMl
} 2RW^Nqc9
} Y<1]{4Wt
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//启动子线程 fg[]>:ZT.
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; SU.9;I
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for(int i=0;i<nStartPos.length;i++) `8 Q3=^)3
{ gD$bn=
fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), sf""]c$
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), "v%|&@
nStartPos,nEndPos,i); /%O+]#$`0
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); ^uG^XY&ItC
fileSplitterFetch.start(); Ed&;d+NM
} W=Y?_Oz
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), -s]
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); JQ9JWu%a
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", %M?A>7b
nEndPos = " + nFileLength); 2y_R05O0
// fileSplitterFetch[nPos.length-1].start(); M{sn{
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//等待子线程结束 Glz yFj
//int count = 0;
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//是否结束while循环 P1\:hh
boolean breakWhile = false; +Ndo$|XCy]
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while(!bStop)
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{ ,ypD0Q
write_nPos(); 4VPJv>^
Utility.sleep(500); Y$tgz)
breakWhile = true; ZW+[f$X
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for(int i=0;i<nStartPos.length;i++) ,B^NH7A:
{ .tFMa:
if(!fileSplitterFetch.bDownOver) |{)SLvlJl
{ :)cn&'l(S
breakWhile = false; P:`tL)W_
break; e+_~a8 -|
} PxqRb
} |Wo_5|E
if(breakWhile) ~c;D@.e\
break; \1 ^qfw
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//count++; T*m;G(
//if(count>4) #zRT
// siteStop(); ,F4_ps?(
} qa|"kRCO
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System.err.println("文件下载结束!"); R78=im7
} \&|zD"*
catch(Exception e){e.printStackTrace ();}
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//获得文件长度 ow,4'f!d
public long getFileSize() )JYt zc
{ !a(#G7zA
int nFileLength = -1; wK0= I\WN9
try{ n\U3f M>N
URL url = new URL(siteInfoBean.getSSiteURL()); mAI<