Re: Where can I store data files in a tomcat war
On 03/07/2014 16:03, Christopher Schultz wrote: -BEGIN PGP SIGNED MESSAGE- Hash: SHA256 Paul, On 7/2/14, 4:28 PM, Paul Taylor wrote: On 02/07/2014 16:34, Christopher Schultz wrote: The solution is that the web application, packaged in a WAR file, needs to unpack the Lucene indexes onto the disk when it starts up. You can do this with a ServletContextListener. So I do within init() method of my servlet, but EB doesnt wait for the init() method to finish before declaring the application ready, do you think it would wait for code using a ServletContextListener or fail in the same way it does for init() ? Which init() are you talking about? GenericServlet.init(), is this method not designed for what I was doing If EB marks the cluster node as available before the webapp has completed deploying, that sounds like a big problem. If you are using servlet.init() without any load-on-startup for that servlet, then I would expect the bad behavior you describe. I dont understand what you are getting at here when you say 'load-on-startup' I think you'll have better luck with ServletContextListener, because the servlet spec guarantees those to be complete before the webapp can receive requests. Okay, well the good news is that I now have it working with AWS ebextensions and it wasn't so difficult in the end. You want to manage the streams yourself: hook a gzip reader up to a tar reader and then read files from the tar reader: GzipInputStream gzin = new GzipInputStream(tgzFile); TarInputStream tin = new TarInputStream(gzin); InputStream fin; while(fin = tin.getNextFile()) copy(fin, new File(localFilename)); That's oversimplified, but essentially what you want to do. There is no need to completely expand the gzip archive before reading files out of it. Ok, thanks good to know thanks for your help Paul - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Where can I store data files in a tomcat war
I guess I'm a little confused as to what this means. I have a simple WAR based web application that uses Lucene created indexes to provide search results in a xml format. Especially given the following context: and supplementary question how do I modify my pom file to do this with maven I was under the impression that Paul was building a separate application using Lucene during the build stage to create the indexes, but then using an application - specific mechanism to use those indexes. That's what I thought, too. Yes correct, let me explain it a bit further. I'm trying to deploy an application that serves results from a lucene index in response to user requests. Deploying it manually to my own server is fine, first of all I just copy the index files to a location on the disk, then I deploy my application, and within its web.xml I have a servlet parameter that defines where the indexes are, so within the servlets init() method i initilize the indexes. The problem is that I'm trying to deploy my application to Amazon Web Services using autoscaled Elastic Beanstalk, this means that the application has to be able to be initilized and created based on what is in the war because Elastic Beanstalk will automatically start new servers as required due to load and terminate those instances when not required. I do seem to have a solution, but I detail it here because it doesn't seem quite right and might be useful to others. Short Answer: Originally I first tried putting the index files (unzipped) into the src/main/resources folder of my maven project, and referred to the WEB-INF/classes/index_dir location in my web.xml and tomcat didn't start. It didnt seem right for non Java classes to be in that folder anyway so I discarded that idea, however Ive just tried it again locally and it worked so if it works on EB that is the solution I'm going to use for now unless any better suggestions. It does mean that the resulting .war file is rather large, far too large to upload from my local machine but as I build the code and indexes from another AWS EC2 instance I can just dump it into S3, and deploy from S3 to EB, if I need to redeploy you dont seem able to redeploy from S3 but Ive realised that when I need to redeploy I would do it to a new EB configuration and then swap the dns from EB1 to EB2 to mimimize downtime so that is not really a problem. A supplementary question: Is there a system property I can use to refer to the WEB-INF as a relative directory rather than full path Long Answer: Since originally posting this question I have looked at a few other possible solutions but none were satisfactory. 1. Deploy war without indexes but in my servlet init() method write code to grab the compressed indexes from S3 and unzip to location specified in web.xml. This worked with a single instance EB but unfortunately AWS does not wait for the init() method (which takes 20 minutes) to finish before declaring it, and this meant because it was busy unzipping indexes and could not serve request it caused AWS monitoring to declare it to busy and open another two instances, once all three instances finished their init() method they were all up and working , then a few minutes two were terminated because not needed. But this means if server is genuinely busy the newly started instances will be declared ready by AWS but fail to service requests during the init() period. This seems like a bug with AWS but not going to change anytime soon. 2. Deploy war without indexes and use AWS .ebextensions files to grab and unzip the indexes. This might work but I really dislike having to write custom deployment code/configurations as a general rule. And because the size of the disk provided by the AWS instance is limited, unzipping is not so simple. For example instead of creating a tar.gz file , I had to gzip the files first and then tar so when untarrred I could decompress one file at a time which required less temporaray space, this would make the eb code more complex. 3. Create a custom Amazon Image that can be used by EB, this seems theoretically possible but quickly got very messy and seemed very much a hack. 4. Use Docker, AWS now supports the docker framework. This might be a good solution but having spent far too much time on understanding AWS I wasnt keen to spen dmore time on yet another framework to solve one problem If the Lucene API is used, then writing a servlet context listener that digs out the initial indexes and places them in java.io.tmpdir in a known subdirectory is probably the way to go. This ensures that even if a WAR file is not exploded, the Lucene DirectoryReader API can get to the files. That's precisely what I was suggesting. So this is what I did with 1 but because of the AWS issue didnt work as well as hoped. Paul - To unsubscribe, e-mail:
Re: Where can I store data files in a tomcat war
On 02/07/2014 11:49, Paul Taylor wrote: I guess I'm a little confused as to what this means. I have a simple WAR based web application that uses Lucene created indexes to provide search results in a xml format. Especially given the following context: and supplementary question how do I modify my pom file to do this with maven I was under the impression that Paul was building a separate application using Lucene during the build stage to create the indexes, but then using an application - specific mechanism to use those indexes. That's what I thought, too. Yes correct, let me explain it a bit further. I'm trying to deploy an application that serves results from a lucene index in response to user requests. Deploying it manually to my own server is fine, first of all I just copy the index files to a location on the disk, then I deploy my application, and within its web.xml I have a servlet parameter that defines where the indexes are, so within the servlets init() method i initilize the indexes. The problem is that I'm trying to deploy my application to Amazon Web Services using autoscaled Elastic Beanstalk, this means that the application has to be able to be initilized and created based on what is in the war because Elastic Beanstalk will automatically start new servers as required due to load and terminate those instances when not required. I do seem to have a solution, but I detail it here because it doesn't seem quite right and might be useful to others. Short Answer: Originally I first tried putting the index files (unzipped) into the src/main/resources folder of my maven project, and referred to the WEB-INF/classes/index_dir location in my web.xml and tomcat didn't start. It didnt seem right for non Java classes to be in that folder anyway so I discarded that idea, however Ive just tried it again locally and it worked so if it works on EB that is the solution I'm going to use for now unless any better suggestions. It does mean that the resulting .war file is rather large, far too large to upload from my local machine but as I build the code and indexes from another AWS EC2 instance I can just dump it into S3, and deploy from S3 to EB, if I need to redeploy you dont seem able to redeploy from S3 but Ive realised that when I need to redeploy I would do it to a new EB configuration and then swap the dns from EB1 to EB2 to mimimize downtime so that is not really a problem. Bother - it doesn't work because of an arbitary limit of 524,288,000 bytes (1/2 GB) on the size of the war that can be deployed to EB. Don't know why Amzon have this limit but because my war now contains the index files its larger than that. Looks to me the only possibility of getting it working properly is to use .ebextensions or Docker Paul - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Where can I store data files in a tomcat war
On 02/07/2014 15:06, Mark H. Wood wrote: On Wed, Jul 02, 2014 at 11:49:36AM +0100, Paul Taylor wrote: I have a simple WAR based web application that uses Lucene created indexes to provide search results in a xml format. Especially given the following context: and supplementary question how do I modify my pom file to do this with maven I was under the impression that Paul was building a separate application using Lucene during the build stage to create the indexes, but then using an application - specific mechanism to use those indexes. That's what I thought, too. Yes correct, let me explain it a bit further. I'm trying to deploy an application that serves results from a lucene index in response to user requests. Deploying it manually to my own server is fine, first of all I just copy the index files to a location on the disk, then I deploy my application, and within its web.xml I have a servlet parameter that defines where the indexes are, so within the servlets init() method i initilize the indexes. The problem is that I'm trying to deploy my application to Amazon Web Services using autoscaled Elastic Beanstalk, this means that the application has to be able to be initilized and created based on what is in the war because Elastic Beanstalk will automatically start new servers as required due to load and terminate those instances when not required. So it sounds like this index is static, produced somewhere else and only consulted read-only by 1..N instances of your webapp. Could you not just plop one uncompressed copy of the index into an EBS snapshot in an S3 bucket, and map the snapshot to each EB instance? Then just provide environmental information to the webapp as to where it should find the index. Your huge index doesn't have to live in the WAR then. I have *very* little experience with AWS, so it's quite possible I'm missing something. It is read only, but each instance of lucene would need its own copy of the index, Lucene does special low level io with the index using memory mapping and the files do need to reside locally for acceptable performance. So the index doesnot have to exist in the WAR but it does need to exist on the EC2 instance (server). - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Where can I store data files in a tomcat war
On 02/07/2014 16:34, Christopher Schultz wrote: -BEGIN PGP SIGNED MESSAGE- Hash: SHA256 Paul, On 7/2/14, 6:49 AM, Paul Taylor wrote: [L]et me explain it a bit further. I'm trying to deploy an application that serves results from a lucene index in response to user requests. Deploying it manually to my own server is fine, first of all I just copy the index files to a location on the disk, then I deploy my application, and within its web.xml I have a servlet parameter that defines where the indexes are, so within the servlets init() method i initilize the indexes. The problem is that I'm trying to deploy my application to Amazon Web Services using autoscaled Elastic Beanstalk, this means that the application has to be able to be initilized and created based on what is in the war because Elastic Beanstalk will automatically start new servers as required due to load and terminate those instances when not required. I do seem to have a solution, but I detail it here because it doesn't seem quite right and might be useful to others. Short Answer: Originally I first tried putting the index files (unzipped) into the src/main/resources folder of my maven project, and referred to the WEB-INF/classes/index_dir location in my web.xml and tomcat didn't start. It didnt seem right for non Java classes to be in that folder anyway so I discarded that idea, however Ive just tried it again locally and it worked so if it works on EB that is the solution I'm going to use for now unless any better suggestions. It does mean that the resulting .war file is rather large, far too large to upload from my local machine but as I build the code and indexes from another AWS EC2 instance I can just dump it into S3, and deploy from S3 to EB, if I need to redeploy you dont seem able to redeploy from S3 but Ive realised that when I need to redeploy I would do it to a new EB configuration and then swap the dns from EB1 to EB2 to mimimize downtime so that is not really a problem. A supplementary question: Is there a system property I can use to refer to the WEB-INF as a relative directory rather than full path Don't use paths. Use the ClassLoader if Lucene can really load a file in that way. The problem is that you can't rely on EB to expand your WAR file on the disk. If EB suddenly changes its deployment model to stop expanding your WAR file, then you are hosed and your application won't work at all. Lucene works on files and does low level io memory mapping so I do need to use paths, but anyway it doesnt matter because as describe din my last post EB doesn't allow me to have a war file big enough to hold the index files anyway. Instead, you need to work around the problem. Let me restate the problem so the solution makes more sense: 1. Amazon Elastic Beanstalk requires a WAR file to deploy to a cluster 2. Lucene can't read an index out of a WAR file The solution is that the web application, packaged in a WAR file, needs to unpack the Lucene indexes onto the disk when it starts up. You can do this with a ServletContextListener. So I do within init() method of my servlet, but EB doesnt wait for the init() method to finish before declaring the application ready, do you think it would wait for code using a ServletContextListener or fail in the same way it does for init() ? Since you expand the files, you decide where to put them. The servlet spec guarantees a temporary directory available using application.getAttribute(javax.servlet.context.tempdir). This returns a java.io.File object pointing to the temporary directory for the application. Dump your files in there (a subdirectory would be a good idea) and then point Lucene at that place on the disk. Long Answer: Since originally posting this question I have looked at a few other possible solutions but none were satisfactory. 1. Deploy war without indexes but in my servlet init() method write code to grab the compressed indexes from S3 and unzip to location specified in web.xml. That would work, too, but you'll have to pay for download time for each member of the cluster. If you pack the indexes in the WAR file, they are already available when the webapp initializes. See my later posts, it doesn't work because of problem with EB not respecting finish of init(), and I cant pack the indexes into WAR because breaks Amazons max war size of 1/2 GB 2. Deploy war without indexes and use AWS .ebextensions files to grab and unzip the indexes. This might work but I really dislike having to write custom deployment code/configurations as a general rule. And because the size of the disk provided by the AWS instance is limited, unzipping is not so simple. For example instead of creating a tar.gz file , I had to gzip the files first and then tar so when untarrred I could decompress one file at a time which required less temporaray space, this would make the eb code more complex. Neither tar nor gzip take very much of anything: they are both block-oriented. What
Where can I store data files in a tomcat war
Hi I have a simple WAR based web application that uses lucene created indexes to provide search results in a xml format, the location of the indexes (outside of the war) are referred in the web.xml. It works fine locally but I want to deploy it using Elastic Beanstalk within Amazon Webservices but for it to work I need the data files within the war, then I can allow EB to create new instances when load balancing/scaling and it will work because the data fields are included in the war at deployment time. I have checked that EB does unjar the war so that when my code comes to use the files they will be real files not still contained within the War. With that in mind where could i put the data files so they not considered by tomcat as java classes , and supplementary question how do I modify my pom file to do this with maven much thanks Paul - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Where can I store data files in a tomcat war
On 27/06/2014 19:59, Christopher Schultz wrote:
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA256
Paul,
On 6/27/14, 8:34 AM, Paul Taylor wrote:
I have a simple WAR based web application that uses lucene created
indexes to provide search results in a xml format, the location of
the indexes (outside of the war) are referred in the web.xml.
It works fine locally but I want to deploy it using Elastic
Beanstalk within Amazon Webservices but for it to work I need the
data files within the war, then I can allow EB to create new
instances when load balancing/scaling and it will work because the
data fields are included in the war at deployment time. I have
checked that EB does unjar the war so that when my code comes to
use the files they will be real files not still contained within
the War.
With that in mind where could i put the data files so they not
considered by tomcat as java classes , and supplementary question
how do I modify my pom file to do this with maven
What?
Java won't try to load random files as .class files.
I tried putting the files into the resources directory of my maven
project, when I deployed the resulting war it would start (did
previously) and opening the war found the files were added under
WEB-INF/classes, that is what I meant. So I need to put them somewhere else.
Are you launching Lucene from within the startup process of your
webapp? I don't see any support for loading Lucene indexes from within
a ZIP file (e.g. WAR, JAR) so you might have to bootstrap the
following when deploying:
1. Know where your files are within the WAR
2. In a ServletContextListener -- perhaps the one that actually
sets-up Lucene -- do the following:
a. Unpack each file of your index into ${tmpdir}/lucene (or whatever)
b. Configure Lucene with an IndexReader that looks at ${tmpdir}/lucene
3. Clean-up after yourself during undeploy
Actually I don't have a startup process as such, the first user request
will just do a search which will cause the index to be accessed. But
perhaps a startup proces is what is what I need. The data files are
stored in amazon s3 so perhaps i could use servlet init to get the s3
file and put it somewhere relative to the deployed app and then use.
Paul
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Re: Where can I store data files in a tomcat war
On 27/06/2014 21:22, Mark Eggers wrote:
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1
On 6/27/2014 11:59 AM, Christopher Schultz wrote:
Paul,
On 6/27/14, 8:34 AM, Paul Taylor wrote:
I have a simple WAR based web application that uses lucene
created indexes to provide search results in a xml format, the
location of the indexes (outside of the war) are referred in the
web.xml.
It works fine locally but I want to deploy it using Elastic
Beanstalk within Amazon Webservices but for it to work I need
the data files within the war, then I can allow EB to create new
instances when load balancing/scaling and it will work because
the data fields are included in the war at deployment time. I
have checked that EB does unjar the war so that when my code
comes to use the files they will be real files not still
contained within the War.
With that in mind where could i put the data files so they not
considered by tomcat as java classes , and supplementary
question how do I modify my pom file to do this with maven
What?
Java won't try to load random files as .class files.
Are you launching Lucene from within the startup process of your
webapp? I don't see any support for loading Lucene indexes from
within a ZIP file (e.g. WAR, JAR) so you might have to bootstrap
the following when deploying:
1. Know where your files are within the WAR 2. In a
ServletContextListener -- perhaps the one that actually sets-up
Lucene -- do the following:
a. Unpack each file of your index into ${tmpdir}/lucene (or
whatever) b. Configure Lucene with an IndexReader that looks at
${tmpdir}/lucene
3. Clean-up after yourself during undeploy
-chris
Paul,
If you're creating the index files before or during the build, you can
place them in:
Project-src-main-resources-some-folder-files
Maven will package them up and place them in WEB-INF/classes/some-folder
Thats what Im doing and seems to prevent deployment (perhaps its some
other reason)
In your application, you could use getResourceAsStream to load the
information from the classpath.
If you're launching Lucene from within your web application and
periodically building the files, then placing them into
${tmpdir}/lucene is probably the way to go.
Okay that sounds better, but can I do that at deploy time ?
Paul
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Would like to extract every request to servelt except index.html
I would like every request to be redirected to a central servlet EXCEPT if the request is simply index.html, but at the moment everything gets redirected to the servlet, how could I do what I want This is extract from my web.xml servlet-mapping servlet-nameSearchServerServlet/servlet-name url-pattern//url-pattern /servlet-mapping welcome-file-list welcome-fileindex.html/welcome-file /welcome-file-list thanks Paul - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Would like to extract every request to servelt except index.html
Pid wrote: On 02/04/2010 09:51, Paul Taylor wrote: I would like every request to be redirected to a central servlet EXCEPT if the request is simply index.html, but at the moment everything gets redirected to the servlet, how could I do what I want This is extract from my web.xml servlet-mapping servlet-nameSearchServerServlet/servlet-name url-pattern//url-pattern /servlet-mapping The above makes your servlet the default servlet, so it'll handle all requests that aren't handled by more specific url-patterns. The welcome files won't be processed. You could employ a Servlet Filter which analyses the requestURI and forwards to your servlet, but that calls chain.doFilter(hreq, hres) otherwise. Hmm, I know why it doesnt work but i was hoping I could add something to this file so that the servlet doesnt pickup index.html, is that not possible. Paul - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Would like to extract every request to servelt except index.html
Pid wrote:
On 02/04/2010 11:09, Paul Taylor wrote:
Pid wrote:
On 02/04/2010 09:51, Paul Taylor wrote:
I would like every request to be redirected to a central servlet
EXCEPT
if the request is simply index.html, but at the moment everything gets
redirected to the servlet, how could I do what I want
This is extract from my web.xml
servlet-mapping
servlet-nameSearchServerServlet/servlet-name
url-pattern//url-pattern
/servlet-mapping
The above makes your servlet the default servlet, so it'll handle all
requests that aren't handled by more specific url-patterns. The
welcome files won't be processed.
You could employ a Servlet Filter which analyses the requestURI and
forwards to your servlet, but that calls chain.doFilter(hreq, hres)
otherwise.
Hmm, I know why it doesnt work but i was hoping I could add something to
this file so that the servlet doesnt pickup index.html, is that not
possible.
Have you found any clues in the Servlet Spec, or the Tomcat docs that
indicate that it _is_ possible?
p
No, I try and stay away from config files as much as possible so Ive
just let the servlet hande it as follows:
//If they have entered nothing, redirect to them a home page (which is
on another server, my index.html just contained a redirect)
if(request.getParameterMap().size()==0)
{
response.sendRedirect(HOME_PAGE);
return;
}
The idea is that if they go this server without specifying any of the
reuired options they have probably gone to the wrong server so just send
them to the correct server
Paul
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Re: How do you handle 'rewrite queries' ?
Christopher Schultz wrote: If you're looking for URL rewriting in Java, you need go no further than http://tuckey.org/urlrewrite/ So I had a look at urlrewrite, when you first mentioned it I didnt realise you could plug it in as a filter, and it seems to be what I need I'm not sure you really need rewriting, since you could just map /ws/type/ to the same servlet that handles requests to / Hi, yes I do need rewrite because I need to be able to change a query like http://localhost:8080/ws/1/release/?query=fredfmt=xml to http://localhost:8080/type=releasequery=fredfmt=xml Release can also be artist,title ectera, the thing is it needs to be converted to the value of a parameter called type. But I create this rule in urlrewrite.xml: rule from^/ws/1/(.*)/(.*)$/from to type=redirect/type=$1amp;$2/to /rule it converts the query to http://localhost:8080/type=release; I enabled debugging when I look at the localhist log , it says Rule 0 run called with /ws/1/release/ matched from needs to be redirected to /type=release it seems it never receives anything after the the last backslash If I pass the following query (note no ? after last backslash) http://localhost:8080/ws/1/release/query=fredfmt=xml it converts query to http://localhost:8080/type=releasequery=fredfmt=xml and debugging shows Rule 0 run called with /ws/1/release/query=fredfmt=xml matched from needs to be redirected to /type=releasequery=fredfmt=xml So, does anyone know why the ? causing an issue thanks for your help Paul - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: How do you handle 'rewrite queries' ?
Christopher Schultz wrote: -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Paul, On 8/5/2009 11:30 AM, Paul Taylor wrote: Thanks actually the default is not picking up the root case, I've got a simpler related issue by war get deployed as searchserver in webapps, is there a way I can leave it then and get it to pick up from root i.e http://localhost:8080?query=%22R.E.S%22type=artistfmt=xml instead of http://localhost:8080/searchserver?query=%22R.E.S%22type=artistfmt=xml Deploying into the root context is easy: just name your WAR file ROOT.war (case matters!) instead of searchserver.war. You URL will have to be http://localhost:8080/?query=%22R.E.S%22type=artistfmt=xml (note the additional slash) because the host must be separated from the path by a slash. and how do i get it maps to port 80 so this will work http://localhost/searchserver?query=%22R.E.S%22type=artistfmt=xml If you are only using Tomcat (no web server out front), you have a few options: 1. Just change your Connector in conf/server.xml from port=8080 to port=80. - On UNIX, this requires Tomcat to run as root, which is highly discouraged. You can use jsvc to run as non-root and still bind to port 80 It will be on UNIX so using jsvc looks simple enough OR i could install Apache. IM wondering if Apache is more the more normal way to do things, Im trying to keep things as simple as possible for a non Java/TOmcat guy to install to linux. - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: How do you handle 'rewrite queries' ?
Christopher Schultz wrote: -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Paul, On 8/3/2009 11:03 AM, Paul Taylor wrote: Hi writing web app to replace an existing open source application (musicbrainz lucene search) that handles queries of the form http://host/?query=...type=...fmt=... and also the alternative form of http://host/ws/type/?queryfmt=... using something called lighttpd.conf , http://bugs.musicbrainz.org/browser/search_server/branches/lucene_server/admin/lighttpd.conf My servlet only handles the first case at the moment how would/Should I achieve this conversion using Apache Tomcat ( version 6) If you're looking for URL rewriting in Java, you need go no further than http://tuckey.org/urlrewrite/ If you're trying to rewrite URLs in a web server sitting in front of Tomcat, you'll need to look at the documentation for that web server to see what options are available. Apache httpd has mod_rewrite, and I have no idea what lighttpd supports. I'm not sure you really need rewriting, since you could just map /ws/type/ to the same servlet that handles requests to / Hi Chris Im not sure what Im talking about when I say Url Rewriting, all I know is I have to support both versions of the url. The servlet is the only thing running so I can think I can just have a servlet engine running, and not even bother with a webserver at all, so could you tell me how to do the mapping you specify in the tomcat config thanks Paul - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: How do you handle 'rewrite queries' ?
Caldarale, Charles R wrote: From: Paul Taylor [mailto:paul_t...@fastmail.fm] Subject: Re: How do you handle 'rewrite queries' ? could you tell me how to do the mapping you specify in the tomcat config It's defined in the servlet spec, not the Tomcat config. Read section 11 of the spec. What's in your WEB-INF/web.xml file now? - Chuck Hi , very little at the moment. ?xml version=1.0 encoding=UTF-8? !DOCTYPE web-app PUBLIC -//Sun Microsystems, Inc.//DTD Web Application 2.3//EN http://java.sun.com/dtd/web-app_2_3.dtd; web-app display-nameMusicBrainz Search Server/display-name servlet servlet-nameSearchServerServlet/servlet-name servlet-classorg.musicbrainz.search.SearchServerServlet/servlet-class /servlet servlet-mapping servlet-nameSearchServerServlet/servlet-name url-pattern//url-pattern /servlet-mapping /web-app Paul - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: How do you handle 'rewrite queries' ?
Caldarale, Charles R wrote: From: Paul Taylor [mailto:paul_t...@fastmail.fm] Subject: Re: How do you handle 'rewrite queries' ? servlet-mapping servlet-nameSearchServerServlet/servlet-name url-pattern//url-pattern /servlet-mapping The above causes the SearchServerServlet to be invoked when there's no path specified in the URI. You want to add a mapping for /ws/type/ to target the same servlet. servlet-mapping servlet-nameSearchServerServlet/servlet-name url-pattern/ws/type/url-pattern /servlet-mapping Note that you can use a wildcard character (*) if you have multiple patterns to match. In fact, you may be able to simply modify the original mapping to have a url-pattern of /*, but I haven't tried it. - Chuck Thanks actually the default is not picking up the root case, I've got a simpler related issue by war get deployed as searchserver in webapps, is there a way I can leave it then and get it to pick up from root i.e http://localhost:8080?query=%22R.E.S%22type=artistfmt=xml instead of http://localhost:8080/searchserver?query=%22R.E.S%22type=artistfmt=xml and how do i get it maps to port 80 so this will work http://localhost/searchserver?query=%22R.E.S%22type=artistfmt=xml I know these are basic questions but every time I use Tomcat ( I last used it three years ago) I have real problems getting these things working thanks Paul - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
How do you handle 'rewrite queries' ?
Hi writing web app to replace an existing open source application (musicbrainz lucene search) that handles queries of the form http://host/?query=...type=...fmt=... and also the alternative form of http://host/ws/type/?queryfmt=... using something called lighttpd.conf , http://bugs.musicbrainz.org/browser/search_server/branches/lucene_server/admin/lighttpd.conf My servlet only handles the first case at the moment how would/Should I achieve this conversion using Apache Tomcat ( version 6) thanks for any help Paul - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
