@ -59,9 +59,9 @@ import java.util.Date;
import java.util.LinkedList ;
import java.util.Map ;
import java.util.TreeMap ;
import java.util.Calendar ;
import java.util.GregorianCalendar ;
import java.util.TimeZone ;
//import java.util.Calendar;
//import java.util.GregorianCalendar;
//import java.util.TimeZone;
import de.anomic.htmlFilter.htmlFilterContentScraper ;
import de.anomic.http.httpHeader ;
@ -79,7 +79,7 @@ public final class plasmaHTCache {
private static final int stackLimit = 150 ; // if we exceed that limit, we do not check idle
public static final long oneday = 1000 * 60 * 60 * 24 ; // milliseconds of a day
private kelondroMap responseHeaderDB = null ;
private final LinkedList cacheStack ;
private final TreeMap cacheAge ; // a <date+hash, cache-path> - relation
@ -89,67 +89,68 @@ public final class plasmaHTCache {
public static serverLog log ;
public plasmaHTCache ( File htCachePath , long maxCacheSize , int bufferkb ) {
// this.switchboard = switchboard;
// this.switchboard = switchboard;
this . log = new serverLog ( "HTCACHE" ) ;
this . cachePath = htCachePath ;
this . maxCacheSize = maxCacheSize ;
// set cache path
if ( ! ( htCachePath . exists ( ) ) ) {
// make the cache path
htCachePath . mkdir ( ) ;
}
if ( ! ( htCachePath . isDirectory ( ) ) ) {
// if the cache does not exists or is a file and not a directory, panic
System . out . println ( "the cache path " + htCachePath . toString ( ) + " is not a directory or does not exists and cannot be created" ) ;
System . exit ( 0 ) ;
}
// open the response header database
File dbfile = new File ( cachePath , "responseHeader.db" ) ;
try {
// we dont need check the path, because we have do that in plasmaSwitchboard.java - Borg-0300
/ * // set cache path
if ( ! ( htCachePath . exists ( ) ) ) {
// make the cache path
htCachePath . mkdir ( ) ;
}
if ( ! ( htCachePath . isDirectory ( ) ) ) {
// if the cache does not exists or is a file and not a directory, panic
System . out . println ( "the cache path " + htCachePath . toString ( ) + " is not a directory or does not exists and cannot be created" ) ;
System . exit ( 0 ) ;
} * /
// open the response header database
File dbfile = new File ( cachePath , "responseHeader.db" ) ;
try {
if ( dbfile . exists ( ) )
responseHeaderDB = new kelondroMap ( new kelondroDyn ( dbfile , bufferkb * 0x400 ) ) ;
else
responseHeaderDB = new kelondroMap ( new kelondroDyn ( dbfile , bufferkb * 0x400 , plasmaCrawlLURL . urlHashLength , 150 ) ) ;
} catch ( IOException e ) {
System . out . println ( "the request header database could not be opened: " + e . getMessage ( ) ) ;
System . exit ( 0 ) ;
}
responseHeaderDB = new kelondroMap ( new kelondroDyn ( dbfile , bufferkb * 0x400 ) ) ;
else
responseHeaderDB = new kelondroMap ( new kelondroDyn ( dbfile , bufferkb * 0x400 , plasmaCrawlLURL . urlHashLength , 150 ) ) ;
} catch ( IOException e ) {
System . out . println ( "the request header database could not be opened: " + e . getMessage ( ) ) ;
System . exit ( 0 ) ;
}
// init stack
cacheStack = new LinkedList ( ) ;
// init stack
cacheStack = new LinkedList ( ) ;
// init cache age and size management
cacheAge = new TreeMap ( ) ;
currCacheSize = 0 ;
this . maxCacheSize = maxCacheSize ;
// start the cache startup thread
// this will collect information about the current cache size and elements
serverInstantThread . oneTimeJob ( this , "cacheScan" , log , 5000 ) ;
cacheAge = new TreeMap ( ) ;
currCacheSize = 0 ;
this . maxCacheSize = maxCacheSize ;
// start the cache startup thread
// this will collect information about the current cache size and elements
serverInstantThread . oneTimeJob ( this , "cacheScan" , log , 5000 ) ;
}
public int size ( ) {
return cacheStack . size ( ) ;
}
public void push ( Entry entry ) {
cacheStack . add ( entry ) ;
}
public Entry pop ( ) {
if ( cacheStack . size ( ) > 0 )
return ( Entry ) cacheStack . removeFirst ( ) ;
else
return null ;
}
public void storeHeader ( String urlHash , httpHeader responseHeader ) throws IOException {
responseHeaderDB . set ( urlHash , responseHeader ) ;
}
private boolean deleteFile ( File file ) {
if ( file . exists ( ) ) {
currCacheSize - = file . length ( ) ;
@ -158,11 +159,11 @@ public final class plasmaHTCache {
return false ;
}
}
public boolean deleteFile ( URL url ) {
return deleteFile ( getCachePath ( url ) ) ;
}
public boolean writeFile ( URL url , byte [ ] array ) {
if ( array = = null ) return false ;
File file = getCachePath ( url ) ;
@ -183,7 +184,7 @@ public final class plasmaHTCache {
writeFileAnnouncement ( file ) ;
return true ;
}
public void writeFileAnnouncement ( File file ) {
synchronized ( cacheAge ) {
if ( file . exists ( ) ) {
@ -193,101 +194,99 @@ public final class plasmaHTCache {
}
}
}
private void cleanup ( ) {
// clean up cache to have enough space for next entries
File f ;
while ( ( currCacheSize > maxCacheSize ) & & ( cacheAge . size ( ) > 0 ) ) {
f = ( File ) cacheAge . remove ( cacheAge . firstKey ( ) ) ;
if ( ( f ! = null ) & & ( f . exists ( ) ) ) {
currCacheSize - = f . length ( ) ;
long size = f . length ( ) ;
//currCacheSize -= f.length();
if ( f . delete ( ) ) {
log . logInfo ( "DELETED OLD CACHE : " + f . toString ( ) ) ;
currCacheSize - = size ;
f = f . getParentFile ( ) ;
if ( ( f . exists ( ) ) & & ( f . isDirectory ( ) ) ) {
// check size of directory
if ( f . list ( ) . length = = 0 ) {
// the directory has no files in it; delete it also
if ( f . delete ( ) ) log . logInfo ( "DELETED EMPTY DIRECTORY : " + f . toString ( ) ) ;
}
if ( f . isDirectory ( ) & & ( f . list ( ) . length = = 0 ) ) {
// the directory has no files in it; delete it also
if ( f . delete ( ) ) log . logInfo ( "DELETED EMPTY DIRECTORY : " + f . toString ( ) ) ;
}
}
}
}
}
public void close ( ) throws IOException {
responseHeaderDB . close ( ) ;
}
private String ageString ( long date , File f ) {
StringBuffer sb = new StringBuffer ( 32 ) ;
String s = Long . toHexString ( date ) ;
for ( int i = s . length ( ) ; i < 16 ; i + + ) sb . append ( '0' ) ;
sb . append ( s ) ;
s = Integer . toHexString ( f . hashCode ( ) ) ;
for ( int i = s . length ( ) ; i < 8 ; i + + ) sb . append ( '0' ) ;
sb . append ( s ) ;
return sb . toString ( ) ;
StringBuffer sb = new StringBuffer ( 32 ) ;
String s = Long . toHexString ( date ) ;
for ( int i = s . length ( ) ; i < 16 ; i + + ) sb . append ( '0' ) ;
sb . append ( s ) ;
s = Integer . toHexString ( f . hashCode ( ) ) ;
for ( int i = s . length ( ) ; i < 8 ; i + + ) sb . append ( '0' ) ;
sb . append ( s ) ;
return sb . toString ( ) ;
}
public void cacheScan ( ) {
//log.logSystem("STARTING CACHE SCANNING");
kelondroMScoreCluster doms = new kelondroMScoreCluster ( ) ;
int c = 0 ;
enumerateFiles ef = new enumerateFiles ( cachePath , true , false , true , true ) ;
File f ;
while ( ef . hasMoreElements ( ) ) {
c + + ;
f = ( File ) ef . nextElement ( ) ;
long d = f . lastModified ( ) ;
//System.out.println("Cache: " + dom(f));
doms . incScore ( dom ( f ) ) ;
currCacheSize + = f . length ( ) ;
cacheAge . put ( ageString ( d , f ) , f ) ;
}
//System.out.println("%" + (String) cacheAge.firstKey() + "=" + cacheAge.get(cacheAge.firstKey()));
long ageHours = 0 ;
try {
ageHours = ( System . currentTimeMillis ( ) -
public void cacheScan ( ) {
//log.logSystem("STARTING CACHE SCANNING");
kelondroMScoreCluster doms = new kelondroMScoreCluster ( ) ;
int c = 0 ;
enumerateFiles ef = new enumerateFiles ( cachePath , true , false , true , true ) ;
File f ;
while ( ef . hasMoreElements ( ) ) {
c + + ;
f = ( File ) ef . nextElement ( ) ;
long d = f . lastModified ( ) ;
//System.out.println("Cache: " + dom(f));
doms . incScore ( dom ( f ) ) ;
currCacheSize + = f . length ( ) ;
cacheAge . put ( ageString ( d , f ) , f ) ;
}
//System.out.println("%" + (String) cacheAge.firstKey() + "=" + cacheAge.get(cacheAge.firstKey()));
long ageHours = 0 ;
try {
ageHours = ( System . currentTimeMillis ( ) -
Long . parseLong ( ( ( String ) cacheAge . firstKey ( ) ) . substring ( 0 , 16 ) , 16 ) ) / 3600000 ;
} catch ( NumberFormatException e ) {
//e.printStackTrace();
}
log . logSystem ( "CACHE SCANNED, CONTAINS " + c +
" FILES = " + currCacheSize / 1048576 + "MB, OLDEST IS " +
( ( ageHours < 24 ) ? ( ageHours + " HOURS" ) : ( ( ageHours / 24 ) + " DAYS" ) ) +
" OLD" ) ;
cleanup ( ) ;
// start to prefetch ip's from dns
String dom ;
long start = System . currentTimeMillis ( ) ;
String ip , result = "" ;
c = 0 ;
while ( ( doms . size ( ) > 0 ) & & ( c < 50 ) & & ( ( System . currentTimeMillis ( ) - start ) < 60000 ) ) {
dom = ( String ) doms . getMaxObject ( ) ;
ip = httpc . dnsResolve ( dom ) ;
if ( ip = = null ) break ;
result + = ", " + dom + "=" + ip ;
log . logSystem ( "PRE-FILLED " + dom + "=" + ip ) ;
c + + ;
doms . deleteScore ( dom ) ;
// wait a short while to prevent that this looks like a DoS
try { Thread . currentThread ( ) . sleep ( 100 ) ; } catch ( InterruptedException e ) { }
}
if ( result . length ( ) > 2 ) log . logSystem ( "PRE-FILLED DNS CACHE, FETCHED " + c +
" ADDRESSES: " + result . substring ( 2 ) ) ;
}
} catch ( NumberFormatException e ) {
//e.printStackTrace();
}
log . logSystem ( "CACHE SCANNED, CONTAINS " + c +
" FILES = " + currCacheSize / 1048576 + "MB, OLDEST IS " +
( ( ageHours < 24 ) ? ( ageHours + " HOURS" ) : ( ( ageHours / 24 ) + " DAYS" ) ) + " OLD" ) ;
cleanup ( ) ;
private String dom ( File f ) {
String s = f . toString ( ) . substring ( cachePath . toString ( ) . length ( ) + 1 ) ;
int p = s . indexOf ( "/" ) ;
if ( p < 0 ) p = s . indexOf ( "\\" ) ;
if ( p < 0 ) return null ;
return s . substring ( 0 , p ) ;
// start to prefetch ip's from dns
String dom ;
long start = System . currentTimeMillis ( ) ;
String ip , result = "" ;
c = 0 ;
while ( ( doms . size ( ) > 0 ) & & ( c < 50 ) & & ( ( System . currentTimeMillis ( ) - start ) < 60000 ) ) {
dom = ( String ) doms . getMaxObject ( ) ;
ip = httpc . dnsResolve ( dom ) ;
if ( ip = = null ) break ;
result + = ", " + dom + "=" + ip ;
log . logSystem ( "PRE-FILLED " + dom + "=" + ip ) ;
c + + ;
doms . deleteScore ( dom ) ;
// wait a short while to prevent that this looks like a DoS
try { Thread . currentThread ( ) . sleep ( 100 ) ; } catch ( InterruptedException e ) { }
}
if ( result . length ( ) > 2 ) log . logSystem ( "PRE-FILLED DNS CACHE, FETCHED " + c +
" ADDRESSES: " + result . substring ( 2 ) ) ;
}
private String dom ( File f ) {
String s = f . toString ( ) . substring ( cachePath . toString ( ) . length ( ) + 1 ) ;
int p = s . indexOf ( "/" ) ;
if ( p < 0 ) p = s . indexOf ( "\\" ) ;
if ( p < 0 ) return null ;
return s . substring ( 0 , p ) ;
}
public httpHeader getCachedResponse ( String urlHash ) throws IOException {
Map hdb = responseHeaderDB . get ( urlHash ) ;
if ( hdb = = null ) return null ;
@ -295,19 +294,19 @@ public final class plasmaHTCache {
}
public boolean full ( ) {
return ( cacheStack . size ( ) > stackLimit ) ;
return ( cacheStack . size ( ) > stackLimit ) ;
}
public boolean empty ( ) {
return ( cacheStack . size ( ) = = 0 ) ;
return ( cacheStack . size ( ) = = 0 ) ;
}
public static boolean isPicture ( httpHeader response ) {
Object ct = response . get ( httpHeader . CONTENT_TYPE ) ;
if ( ct = = null ) return false ;
return ( ( String ) ct ) . toUpperCase ( ) . startsWith ( "IMAGE" ) ;
}
public static boolean isText ( httpHeader response ) {
// Object ct = response.get(httpHeader.CONTENT_TYPE);
// if (ct == null) return false;
@ -336,64 +335,76 @@ public final class plasmaHTCache {
// );
int idx = urlString . indexOf ( "?" ) ;
if ( idx > 0 ) urlString = urlString . substring ( 0 , idx ) ;
idx = urlString . lastIndexOf ( "." ) ;
if ( idx > 0 ) urlString = urlString . substring ( idx + 1 ) ;
return plasmaParser . mediaExtContains ( urlString ) ;
}
// this method creates from a given host and path a cache path
/ * *
* this method creates from a given host and path a cache path
* from a given host ( which may also be an IPv4 - number , but not IPv6 or
* a domain ; all without leading ' http : //') and a path (which must start
* with a leading '/' , and may also end in an '/' ) a path to a file
* in the file system with root as given in cachePath is constructed
* it will also be ensured , that the complete path exists ; if necessary
* that path will be generated
* @return URL
* /
public File getCachePath ( URL url ) {
// from a given host (which may also be an IPv4 - number, but not IPv6 or
// a domain; all without leading 'http://') and a path (which must start
// with a leading '/', and may also end in an '/') a path to a file
// in the file system with root as given in cachePath is constructed
// it will also be ensured, that the complete path exists; if necessary
// that path will be generated
//System.out.println("DEBUG: getCachedPath=" + url.toString());
String remotePath = url . getPath ( ) ;
if ( ! ( remotePath . startsWith ( "/" ) ) ) remotePath = "/" + remotePath ;
if ( remotePath . endsWith ( "/" ) ) remotePath = remotePath + "ndx" ;
// System.out.println("DEBUG: getCachePath: IN=" + url.toString());
String remotePath = url . getPath ( ) ;
if ( ! ( remotePath . startsWith ( "/" ) ) ) remotePath = "/" + remotePath ;
if ( remotePath . endsWith ( "/" ) ) remotePath = remotePath + "ndx" ;
if ( remotePath . indexOf ( '#' ) > 0 ) remotePath . substring ( 0 , remotePath . indexOf ( '#' ) ) ;
remotePath = remotePath . replace ( '?' , '_' ) ;
remotePath = remotePath . replace ( '&' , '_' ) ; // yes this is not reversible, but that is not needed
remotePath = remotePath . replace ( ':' , '_' ) ; // yes this is not reversible, but that is not needed
int port = url . getPort ( ) ;
if ( port < 0 ) port = 80 ;
return new File ( this . cachePath , url . getHost ( ) + ( ( port = = 80 ) ? "" : ( "+" + port ) ) + remotePath ) ;
int port = url . getPort ( ) ;
if ( port < 0 ) port = 80 ;
// System.out.println("DEBUG: getCachePath: OUT=" + url.getHost() + ((port == 80) ? "" : ("+" + port)) + remotePath);
return new File ( this . cachePath , url . getHost ( ) + ( ( port = = 80 ) ? "" : ( "+" + port ) ) + remotePath ) ;
}
/ * *
* this is the reverse function to getCachePath : it constructs the url as string
* from a given storage path
* /
public static URL getURL ( File cachePath , File f ) {
// this is the reverse function to getCachePath: it constructs the url as string
// from a given storage path
String s = f . toString ( ) . replace ( '\\' , '/' ) ;
String c = cachePath . toString ( ) . replace ( '\\' , '/' ) ;
//System.out.println("DEBUG: getURL for c=" + c + ", s=" + s);
int p = s . lastIndexOf ( c ) ;
if ( p > = 0 ) {
s = s . substring ( p + c . length ( ) ) ;
while ( s . startsWith ( "/" ) ) s = s . substring ( 1 ) ;
if ( ( p = s . indexOf ( "+" ) ) > = 0 ) {
// System.out.println("DEBUG: getURL: IN: Path=[" + cachePath + "]");
// System.out.println("DEBUG: getURL: IN: File=[" + f + "]");
String s = f . toString ( ) . replace ( '\\' , '/' ) ;
String c = cachePath . toString ( ) . replace ( '\\' , '/' ) ;
int p = s . lastIndexOf ( c ) ;
if ( p > = 0 ) {
s = s . substring ( p + c . length ( ) ) ;
while ( s . startsWith ( "/" ) ) s = s . substring ( 1 ) ;
if ( ( p = s . indexOf ( "+" ) ) > = 0 ) {
s = s . substring ( 0 , p ) + ":" + s . substring ( p + 1 ) ;
} else {
/ * } else {
p = s . indexOf ( "/" ) ;
if ( p < 0 )
s = s + ":80/" ;
else
s = s . substring ( 0 , p ) + ":80" + s . substring ( p ) ;
s = s . substring ( 0 , p ) + ":80" + s . substring ( p ) ; * /
}
if ( s . endsWith ( "ndx" ) ) s = s . substring ( 0 , s . length ( ) - 3 ) ;
//System.out.println("DEBUG: getURL url=" + s);
if ( s . endsWith ( "ndx" ) ) s = s . substring ( 0 , s . length ( ) - 3 ) ;
// System.out.println("DEBUG: getURL: OUT=" + s);
try {
/ * URL url = null ;
url = new URL ( "http://" + s ) ;
System . out . println ( "DEBUG: getURL: URL=" + url . toString ( ) ) ;
return url ; //new URL("http://" + s); */
return new URL ( "http://" + s ) ;
} catch ( Exception e ) {
return null ;
}
}
return null ;
}
return null ;
}
public byte [ ] loadResource ( URL url ) {
// load the url as resource from the cache
File f = getCachePath ( url ) ;
@ -405,10 +416,10 @@ public final class plasmaHTCache {
return null ;
}
}
public static boolean isPOST ( String urlString ) {
return ( ( urlString . indexOf ( "?" ) > = 0 ) | |
( urlString . indexOf ( "&" ) > = 0 ) ) ;
return ( ( urlString . indexOf ( "?" ) > = 0 ) | |
( urlString . indexOf ( "&" ) > = 0 ) ) ;
}
public static boolean isCGI ( String urlString ) {
@ -421,8 +432,8 @@ public final class plasmaHTCache {
}
public Entry newEntry ( Date initDate , int depth , URL url , String name ,
httpHeader requestHeader ,
String responseStatus , httpHeader responseHeader ,
httpHeader requestHeader ,
String responseStatus , httpHeader responseHeader ,
String initiator ,
plasmaCrawlProfile . entry profile ) {
return new Entry ( initDate , depth , url , name , requestHeader , responseStatus , responseHeader , initiator , profile ) ;
@ -430,108 +441,108 @@ public final class plasmaHTCache {
public final class Entry {
// the class objects
public Date initDate ; // the date when the request happened; will be used as a key
public int depth ; // the depth of prefetching
public httpHeader requestHeader ; // we carry also the header to prevent too many file system access
public String responseStatus ;
public httpHeader responseHeader ; // we carry also the header to prevent too many file system access
public File cacheFile ; // the cache file
public byte [ ] cacheArray ; // or the cache as byte-array
public URL url ;
public String name ; // the name of the link, read as anchor from an <a>-tag
public String nomalizedURLHash ;
public String nomalizedURLString ;
public int status ; // cache load/hit/stale etc status
public Date lastModified ;
public char doctype ;
public String language ;
public plasmaCrawlProfile . entry profile ;
private String initiator ;
// the class objects
public Date initDate ; // the date when the request happened; will be used as a key
public int depth ; // the depth of prefetching
public httpHeader requestHeader ; // we carry also the header to prevent too many file system access
public String responseStatus ;
public httpHeader responseHeader ; // we carry also the header to prevent too many file system access
public File cacheFile ; // the cache file
public byte [ ] cacheArray ; // or the cache as byte-array
public URL url ;
public String name ; // the name of the link, read as anchor from an <a>-tag
public String nomalizedURLHash ;
public String nomalizedURLString ;
public int status ; // cache load/hit/stale etc status
public Date lastModified ;
public char doctype ;
public String language ;
public plasmaCrawlProfile . entry profile ;
private String initiator ;
public Entry ( Date initDate , int depth , URL url , String name ,
httpHeader requestHeader ,
String responseStatus , httpHeader responseHeader ,
String initiator ,
plasmaCrawlProfile . entry profile ) {
// normalize url
this . nomalizedURLString = htmlFilterContentScraper . urlNormalform ( url ) ;
try {
this . url = new URL ( nomalizedURLString ) ;
} catch ( MalformedURLException e ) {
System . out . println ( "internal error at httpdProxyCache.Entry: " + e ) ;
System . exit ( - 1 ) ;
}
this . name = name ;
this . cacheFile = getCachePath ( this . url ) ;
this . nomalizedURLHash = plasmaCrawlLURL . urlHash ( nomalizedURLString ) ;
// assigned:
this . initDate = initDate ;
this . depth = depth ;
this . requestHeader = requestHeader ;
this . responseStatus = responseStatus ;
this . responseHeader = responseHeader ;
this . profile = profile ;
this . initiator = ( initiator = = null ) ? null : ( ( initiator . length ( ) = = 0 ) ? null : initiator ) ;
// calculated:
if ( responseHeader = = null ) {
try {
throw new RuntimeException ( "RESPONSE HEADER = NULL" ) ;
} catch ( Exception e ) {
System . out . println ( "RESPONSE HEADER = NULL in " + url ) ;
e . printStackTrace ( ) ;
System . exit ( 0 ) ;
}
lastModified = serverDate . correctedGMTDate ( ) ;
} else {
lastModified = responseHeader . lastModified ( ) ;
if ( lastModified = = null ) lastModified = serverDate . correctedGMTDate ( ) ; // does not exist in header
}
this . doctype = plasmaWordIndexEntry . docType ( responseHeader . mime ( ) ) ;
if ( this . doctype = = plasmaWordIndexEntry . DT_UNKNOWN ) this . doctype = plasmaWordIndexEntry . docType ( url ) ;
this . language = plasmaWordIndexEntry . language ( url ) ;
public Entry ( Date initDate , int depth , URL url , String name ,
httpHeader requestHeader ,
String responseStatus , httpHeader responseHeader ,
String initiator ,
plasmaCrawlProfile . entry profile ) {
// to be defined later:
this . cacheArray = null ;
}
public String name ( ) {
return name ;
}
public String initiator ( ) {
return initiator ;
// normalize url - Borg-0300
serverLog . logDebug ( "PLASMA" , "Entry: URL=" + url . toString ( ) ) ;
this . nomalizedURLString = htmlFilterContentScraper . urlNormalform ( url ) ;
try {
this . url = new URL ( nomalizedURLString ) ;
} catch ( MalformedURLException e ) {
System . out . println ( "internal error at httpdProxyCache.Entry: " + e ) ;
System . exit ( - 1 ) ;
}
public boolean proxy ( ) {
return initiator ( ) = = null ;
this . name = name ;
this . cacheFile = getCachePath ( this . url ) ;
this . nomalizedURLHash = plasmaCrawlLURL . urlHash ( nomalizedURLString ) ;
// assigned:
this . initDate = initDate ;
this . depth = depth ;
this . requestHeader = requestHeader ;
this . responseStatus = responseStatus ;
this . responseHeader = responseHeader ;
this . profile = profile ;
this . initiator = ( initiator = = null ) ? null : ( ( initiator . length ( ) = = 0 ) ? null : initiator ) ;
// calculated:
if ( responseHeader = = null ) {
try {
throw new RuntimeException ( "RESPONSE HEADER = NULL" ) ;
} catch ( Exception e ) {
System . out . println ( "RESPONSE HEADER = NULL in " + url ) ;
e . printStackTrace ( ) ;
System . exit ( 0 ) ;
}
lastModified = serverDate . correctedGMTDate ( ) ;
} else {
lastModified = responseHeader . lastModified ( ) ;
if ( lastModified = = null ) lastModified = serverDate . correctedGMTDate ( ) ; // does not exist in header
}
public long size ( ) {
if ( cacheArray = = null ) return 0 ; else return cacheArray . length ;
}
this . doctype = plasmaWordIndexEntry . docType ( responseHeader . mime ( ) ) ;
if ( this . doctype = = plasmaWordIndexEntry . DT_UNKNOWN ) this . doctype = plasmaWordIndexEntry . docType ( url ) ;
this . language = plasmaWordIndexEntry . language ( url ) ;
public URL referrerURL ( ) {
if ( requestHeader = = null ) return null ;
try {
return new URL ( ( String ) requestHeader . get ( httpHeader . REFERER , "" ) ) ;
} catch ( Exception e ) {
return null ;
}
// to be defined later:
this . cacheArray = null ;
}
public String name ( ) {
return name ;
}
public String initiator ( ) {
return initiator ;
}
public boolean proxy ( ) {
return initiator ( ) = = null ;
}
public long size ( ) {
if ( cacheArray = = null ) return 0 ; else return cacheArray . length ;
}
public URL referrerURL ( ) {
if ( requestHeader = = null ) return null ;
try {
return new URL ( ( String ) requestHeader . get ( httpHeader . REFERER , "" ) ) ;
} catch ( Exception e ) {
return null ;
}
/ *
}
/ *
public boolean update ( ) {
return ( ( status = = CACHE_FILL ) | | ( status = = CACHE_STALE_RELOAD_GOOD ) ) ;
}
* /
// the following three methods for cache read/write granting shall be as loose as possible
// but also as strict as necessary to enable caching of most items
// the following three methods for cache read/write granting shall be as loose as possible
// but also as strict as necessary to enable caching of most items
public String shallStoreCacheForProxy ( ) {
public String shallStoreCacheForProxy ( ) {
// returns NULL if the answer is TRUE
// in case of FALSE, the reason as String is returned
borg-0300
20 years ago