javascript - Data Structure for storing partial urls where search speed is the priority -

-

we have large database of partial urls (strings) such as:

  • "example1.com"

  • "example2.com/test.js"

  • "/foo.js"

our software listens http requests , tries find 1 of our database's partial urls in http request's full url.

so getting full urls (i.e.: http://www.example.com/blah.js?foo=bar") , trying match 1 of our database's partial patterns on it.

which best data structure store our partial urls database on if care search speed?

right now, do:

  • iterating through entire database of partial urls (strings) , using indexof (in javascript) see if full url contains each partial string.

update:

this software extension firefox written in javascript on firefox's addon sdk.

assuming partial strings domain names and/or page names try generate possible combinations url starting end:

 http://www.example.com/blah.js?foo=bar  blaj.js  example.com/blah.js  www.example.com/blah.js

then hash combinations, store them in array , try find of them in array contains hashes of partial strings database.

note:

in case want match string in url, ample in example.com becomes little complicated in terms of storage, because random combinations of strings in url combination formula

where n length of url , k length of string find. according this question maximum reasonable length of url 2000 characters. , assuming want match random string you'd have k vary 1 2000 result in large amount of hashes generated url - sum of n on k each k 1 2000. or more precisely - 2000! / (k!*(2000-k)!) different hashes


Comments

Post a Comment

Popular posts from this blog

ios - RestKit 0.20 — CoreData: error: Failed to call designated initializer on NSManagedObject class (again) -

-
this error has shown on many times, seems. prominent answer issue seems restkit 0.20 — coredata: error: failed call designated initializer on nsmanagedobject class however, solution posted doesn't work me. let's start beginning: i want upload file server. want parse response make sure uploaded. if not, try again later. model has boolean variable called nsnumber *senttoserver purpose (in coredata, bool saved nsnumber ) . because don't know whether sending going successful, save entity coredata model first before sending via restkit. when post request successful, server returns json string this: {"id":14,"created":true} notice that, of course, id not set on coredata model yet, both id , created new informations model. here's model: @interface recording : nsmanagedobject @property (nonatomic, retain) nsstring * audiofilepath; @property (nonatomic, retain) nsdate * createdat; @property (nonatomic, retain) nsstring * deviceid; @...
Read more

java - Digest auth with Spring Security using javaconfig -

-
so i'm trying create digest authentication spring following documentation trying translate xml "requirements" in java requirements. let's have xml in docs: <bean id="digestfilter" class= "org.springframework.security.web.authentication.www.digestauthenticationfilter"> <property name="userdetailsservice" ref="jdbcdaoimpl"/> <property name="authenticationentrypoint" ref="digestentrypoint"/> <property name="usercache" ref="usercache"/> </bean> <bean id="digestentrypoint" class= "org.springframework.security.web.authentication.www.digestauthenticationentrypoint"> <property name="realmname" value="contacts realm via digest authentication"/> <property name="key" value="acegi"/> <property name="noncevalidityseconds" value="10"/> </b...
Read more

laravel - PDOException in Connector.php line 55: SQLSTATE[HY000] [1045] Access denied for user 'root'@'localhost' (using password: YES) -

-
my .env: app_env=local app_debug=true app_key=myappkey app_url=http://localhost db_connection=mysql db_host=localhost db_port=3306 db_database=gestiontaller db_username=root db_password='root' cache_driver=file session_driver=file queue_driver=sync redis_host=127.0.0.1 redis_password=null redis_port=6379 mail_driver=smtp mail_host=mailtrap.io mail_port=2525 mail_username=null mail_password=null mail_encryption=null i've tried password ", ' , without, restarting server every time. i've tried changing localhost 172.0.0.1. yes, password correct, running mysql -u root -p introducing password root in prompt can go mysql. users table: +------------------+-----------+ | user | host | +------------------+-----------+ | debian-sys-maint | localhost | | mysql.sys | localhost | | root | localhost | | root1 | localhost | +------------------+-----------+ i've added homestead.yaml this: database_port: 3306 ...
Read more