Relative paths when running FOP as servlet (Tomcat)

[Esse]

Hi fopusers!

Specs:
Latest fop (1.0)
Latest tomcat (7.x)

I’m using the fop servlet example in tomcat, with a config file.

Right now, FOpServlet is modified like this:

protected void configureFopFactory() {
try {
fopFactory.setUserConfig(new File("/conf/fop.xconf"));
} catch (SAXException e) {
System.out.println(e);
} catch (IOException e) {
System.out.println(e);
}
}

However, the path for the config file in the above example is
C:\conf\fop.xconf .

How to make config file path relative(in jar/war/tomcat folder?

Really anywhere would do except a hard path, like [JAVA_HOME]/conf/fop.xconf
or something like that.


Please help :)

[Martin Jacobson]

This is what I would do...

0) move the config file to be part of the war file, inside WEB-INF

1) web.xml

<?xml version="1.0" encoding="ISO-8859-1"?>

<!DOCTYPE web-app
PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
"http://java.sun.com/j2ee/dtds/web-app_2.3.dtd">

<web-app>
<display-name>cartoWeb - vector map server</display-name>

<context-param>
<param-name>configuration-file</param-name>
<param-value>WEB-INF/fop.xconf</param-value>
</context-param>

<listener>
<listener-class>com.emc.carto.web.servlet.WebAppInitializer</listener-class>
</listener>
...

2) Listener

public class WebAppInitializer implements ServletContextListener
{
ServletContext ctx = null;

public void contextInitialized(ServletContextEvent sce)
{
ctx = sce.getServletContext();
String configFileName = ctx.getInitParameter("configuration-file");
String realConfigFile = ctx.getRealPath(configFileName);
try {
fopFactory.setUserConfig(new File(realConfigFile));
}
etc.


HTH
Martin

Post by Esse
Hi fopusers!
Latest fop (1.0)
Latest tomcat (7.x)
I’m using the fop servlet example in tomcat, with a config file.
protected void configureFopFactory() {
       try {
               fopFactory.setUserConfig(new File("/conf/fop.xconf"));
       } catch (SAXException e) {
               System.out.println(e);
       } catch (IOException e) {
               System.out.println(e);
       }
   }
However, the path for the config file in the above example is
C:\conf\fop.xconf .
How to make config file path relative(in jar/war/tomcat folder?
Really anywhere would do except a hard path, like [JAVA_HOME]/conf/fop.xconf
or something like that.
Please help :)
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[Esse]

Hi Martin!

Thanks a lot for your help! However, i'm really a rookie and i need some
clarification to understand :)

How should i modify my web.xml(below)?

web-app>
<!-- Servlets -->
<servlet>
<servlet-name>Fop</servlet-name>
<servlet-class>org.apache.fop.servlet.FopServlet</servlet-class>
</servlet>
<servlet>
<servlet-name>FopPrint</servlet-name>
<servlet-class>org.apache.fop.servlet.FopPrintServlet</servlet-class>
</servlet>
<!-- Servlet mappings -->
<servlet-mapping>
<servlet-name>Fop</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>FopPrint</servlet-name>
<url-pattern>/fopprint</url-pattern>
</servlet-mapping>
</web-app>

Post by Martin Jacobson
This is what I would do...
0) move the config file to be part of the war file, inside WEB-INF
1) web.xml
<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE web-app
PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
"http://java.sun.com/j2ee/dtds/web-app_2.3.dtd">
<web-app>
<display-name>cartoWeb - vector map server</display-name>
<context-param>
<param-name>configuration-file</param-name>
<param-value>WEB-INF/fop.xconf</param-value>
</context-param>
<listener>
<listener-class>com.emc.carto.web.servlet.WebAppInitializer</listener-class>
</listener>
...
2) Listener
public class WebAppInitializer implements ServletContextListener
{
ServletContext ctx = null;
public void contextInitialized(ServletContextEvent sce)
{
ctx = sce.getServletContext();
String configFileName = ctx.getInitParameter("configuration-file");
String realConfigFile = ctx.getRealPath(configFileName);
try {
fopFactory.setUserConfig(new File(realConfigFile));
}
etc.
HTH
Martin

Post by Esse
Hi fopusers!
Latest fop (1.0)
Latest tomcat (7.x)
I’m using the fop servlet example in tomcat, with a config file.
protected void configureFopFactory() {
       try {
               fopFactory.setUserConfig(new File("/conf/fop.xconf"));
       } catch (SAXException e) {
               System.out.println(e);
       } catch (IOException e) {
               System.out.println(e);
       }
   }
However, the path for the config file in the above example is
C:\conf\fop.xconf .
How to make config file path relative(in jar/war/tomcat folder?
Really anywhere would do except a hard path, like
[JAVA_HOME]/conf/fop.xconf
or something like that.
Please help :)
--
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Sent from the FOP - Users mailing list archive at Nabble.com.
---------------------------------------------------------------------

--
From my MacBook Pro
---------------------------------------------------------------------

[Martin Jacobson]

Hi Esse,

The web.xml stuff I gave you goes right at the beginning, before the
first <servlet> tag.

It took me a while to get my head round the app lifecycle, so I
understand your confusion! The <listener> allows you to write a class
that is guaranteed to be executed before any of your servlets. The
interface for ContextListener defines a method for when your context
(ie, your web app) is initialized (first loaded), and another for when
the context is destroyed (shut down), so this is where you open your
database connection, configure FOP, etc etc, at startup, and close
everything at shutdown.

I hope that helps - it's late here in Helsinki, so I'm a bit sleepy!

Martin

Post by Esse
Hi Martin!
Thanks a lot for your help! However, i'm really a rookie and i need some
clarification to understand :)
How should i modify my web.xml(below)?
web-app>
       <!-- Servlets -->
 <servlet>
   <servlet-name>Fop</servlet-name>
   <servlet-class>org.apache.fop.servlet.FopServlet</servlet-class>
 </servlet>
 <servlet>
   <servlet-name>FopPrint</servlet-name>
   <servlet-class>org.apache.fop.servlet.FopPrintServlet</servlet-class>
 </servlet>
 <!-- Servlet mappings -->
 <servlet-mapping>
   <servlet-name>Fop</servlet-name>
   <url-pattern>/</url-pattern>
 </servlet-mapping>
 <servlet-mapping>
   <servlet-name>FopPrint</servlet-name>
   <url-pattern>/fopprint</url-pattern>
 </servlet-mapping>
</web-app>

Post by Martin Jacobson
This is what I would do...
0) move the config file to be part of the war file, inside WEB-INF
1) web.xml
<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE web-app
    PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
    "http://java.sun.com/j2ee/dtds/web-app_2.3.dtd">
<web-app>
    <display-name>cartoWeb - vector map server</display-name>
      <context-param>
              <param-name>configuration-file</param-name>
              <param-value>WEB-INF/fop.xconf</param-value>
      </context-param>
      <listener>
<listener-class>com.emc.carto.web.servlet.WebAppInitializer</listener-class>
      </listener>
...
2) Listener
public class WebAppInitializer implements ServletContextListener
{
      ServletContext ctx = null;
      public void contextInitialized(ServletContextEvent sce)
      {
              ctx = sce.getServletContext();
              String configFileName = ctx.getInitParameter("configuration-file");
              String realConfigFile = ctx.getRealPath(configFileName);
               try {
                     fopFactory.setUserConfig(new File(realConfigFile));
              }
etc.
HTH
Martin

Post by Esse
Hi fopusers!
Latest fop (1.0)
Latest tomcat (7.x)
I’m using the fop servlet example in tomcat, with a config file.
protected void configureFopFactory() {
       try {
               fopFactory.setUserConfig(new File("/conf/fop.xconf"));
       } catch (SAXException e) {
               System.out.println(e);
       } catch (IOException e) {
               System.out.println(e);
       }
   }
However, the path for the config file in the above example is
C:\conf\fop.xconf .
How to make config file path relative(in jar/war/tomcat folder?
Really anywhere would do except a hard path, like
[JAVA_HOME]/conf/fop.xconf
or something like that.
Please help :)
--
http://old.nabble.com/Relative-paths-when-running-FOP-as-servlet-%28Tomcat%29-tp29531194p29531194.html
Sent from the FOP - Users mailing list archive at Nabble.com.
---------------------------------------------------------------------

--
From my MacBook Pro
---------------------------------------------------------------------

--
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---------------------------------------------------------------------

[Esse]

Thanks Martin!

Theoretically, i know -almost- what to do now ;)

I know we really get into the basics here... How about listener naming, does
it matter and i which ways? But the listener, should i create a separate
WebInitializer.java for that class, or should i merge the ContextListener
with any of the existing code? There is a
ServletContextURIResolver.java-file(quoted below:)

/**
* This class is a URIResolver implementation that provides access to
resources in the WEB-INF
* directory of a web application using "servlet-content:" URIs.
*/
public class ServletContextURIResolver implements URIResolver {

/** The protocol name for the servlet context URIs. */
public static final String SERVLET_CONTEXT_PROTOCOL =
"servlet-context:";

private ServletContext servletContext;
...

Thanks again!

Post by Martin Jacobson
Hi Esse,
The web.xml stuff I gave you goes right at the beginning, before the
first <servlet> tag.
It took me a while to get my head round the app lifecycle, so I
understand your confusion! The <listener> allows you to write a class
that is guaranteed to be executed before any of your servlets. The
interface for ContextListener defines a method for when your context
(ie, your web app) is initialized (first loaded), and another for when
the context is destroyed (shut down), so this is where you open your
database connection, configure FOP, etc etc, at startup, and close
everything at shutdown.
I hope that helps - it's late here in Helsinki, so I'm a bit sleepy!
Martin

Post by Esse
Hi Martin!
Thanks a lot for your help! However, i'm really a rookie and i need some
clarification to understand :)
How should i modify my web.xml(below)?
web-app>
       <!-- Servlets -->
 <servlet>
   <servlet-name>Fop</servlet-name>
   <servlet-class>org.apache.fop.servlet.FopServlet</servlet-class>
 </servlet>
 <servlet>
   <servlet-name>FopPrint</servlet-name>
   <servlet-class>org.apache.fop.servlet.FopPrintServlet</servlet-class>
 </servlet>
 <!-- Servlet mappings -->
 <servlet-mapping>
   <servlet-name>Fop</servlet-name>
   <url-pattern>/</url-pattern>
 </servlet-mapping>
 <servlet-mapping>
   <servlet-name>FopPrint</servlet-name>
   <url-pattern>/fopprint</url-pattern>
 </servlet-mapping>
</web-app>

Post by Martin Jacobson
This is what I would do...
0) move the config file to be part of the war file, inside WEB-INF
1) web.xml
<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE web-app
    PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
    "http://java.sun.com/j2ee/dtds/web-app_2.3.dtd">
<web-app>
    <display-name>cartoWeb - vector map server</display-name>
      <context-param>
              <param-name>configuration-file</param-name>
              <param-value>WEB-INF/fop.xconf</param-value>
      </context-param>
      <listener>
<listener-class>com.emc.carto.web.servlet.WebAppInitializer</listener-class>
      </listener>
...
2) Listener
public class WebAppInitializer implements ServletContextListener
{
      ServletContext ctx = null;
      public void contextInitialized(ServletContextEvent sce)
      {
              ctx = sce.getServletContext();
              String configFileName =
ctx.getInitParameter("configuration-file");
              String realConfigFile = ctx.getRealPath(configFileName);
               try {
                     fopFactory.setUserConfig(new File(realConfigFile));
              }
etc.
HTH
Martin

Post by Esse
Hi fopusers!
Latest fop (1.0)
Latest tomcat (7.x)
I’m using the fop servlet example in tomcat, with a config file.
protected void configureFopFactory() {
       try {
               fopFactory.setUserConfig(new File("/conf/fop.xconf"));
       } catch (SAXException e) {
               System.out.println(e);
       } catch (IOException e) {
               System.out.println(e);
       }
   }
However, the path for the config file in the above example is
C:\conf\fop.xconf .
How to make config file path relative(in jar/war/tomcat folder?
Really anywhere would do except a hard path, like
[JAVA_HOME]/conf/fop.xconf
or something like that.
Please help :)
--
http://old.nabble.com/Relative-paths-when-running-FOP-as-servlet-%28Tomcat%29-tp29531194p29531194.html
Sent from the FOP - Users mailing list archive at Nabble.com.
---------------------------------------------------------------------

--
From my MacBook Pro
---------------------------------------------------------------------

--
http://old.nabble.com/Relative-paths-when-running-FOP-as-servlet-%28Tomcat%29-tp29531194p29531548.html
Sent from the FOP - Users mailing list archive at Nabble.com.
---------------------------------------------------------------------

--
From my MacBook Pro
---------------------------------------------------------------------

[Martin Jacobson]

Hi Esse,

Class naming? You can call the listener anything you like -
"BarakObamaListener" if you wish! - I prefer to name classes for what
they *do* rather than what they *are*, but tastes vary. All that
matters is that it implements the "ServletContextListener" interface.

Whether you want to add the interface into an existing class is again
up to you, but I wouldn't. Webapp activation and shutdown are very
specific activities, and I like to keep them separate from classes
that do other things.

BTW, we seem to be straying off-topic.

HTH
Martin

Post by Esse
Thanks Martin!
Theoretically, i know -almost- what to do now ;)
I know we really get into the basics here... How about listener naming, does
it matter and i which ways? But the listener, should i create a separate
WebInitializer.java for that class, or should i merge the ContextListener
with any of the existing code? There is a
ServletContextURIResolver.java-file(quoted below:)
/**
 * This class is a URIResolver implementation that provides access to
resources in the WEB-INF
 * directory of a web application using "servlet-content:" URIs.
 */
public class ServletContextURIResolver implements URIResolver {
   /** The protocol name for the servlet context URIs. */
   public static final String SERVLET_CONTEXT_PROTOCOL =
"servlet-context:";
   private ServletContext servletContext;
...
Thanks again!

Post by Martin Jacobson
Hi Esse,
The web.xml stuff I gave you goes right at the beginning, before the
first <servlet> tag.
It took me a while to get my head round the app lifecycle, so I
understand your confusion! The <listener>  allows you to write a class
that is guaranteed to be executed before any of your servlets. The
interface for ContextListener defines a method for when your context
(ie, your web app) is initialized (first loaded), and another for when
the context is destroyed (shut down), so this is where you open your
database connection, configure FOP, etc etc, at startup, and close
everything at shutdown.
I hope that helps - it's late here in Helsinki, so I'm a bit sleepy!
Martin

Post by Esse
Hi Martin!
Thanks a lot for your help! However, i'm really a rookie and i need some
clarification to understand :)
How should i modify my web.xml(below)?
web-app>
       <!-- Servlets -->
 <servlet>
   <servlet-name>Fop</servlet-name>
   <servlet-class>org.apache.fop.servlet.FopServlet</servlet-class>
 </servlet>
 <servlet>
   <servlet-name>FopPrint</servlet-name>
   <servlet-class>org.apache.fop.servlet.FopPrintServlet</servlet-class>
 </servlet>
 <!-- Servlet mappings -->
 <servlet-mapping>
   <servlet-name>Fop</servlet-name>
   <url-pattern>/</url-pattern>
 </servlet-mapping>
 <servlet-mapping>
   <servlet-name>FopPrint</servlet-name>
   <url-pattern>/fopprint</url-pattern>
 </servlet-mapping>
</web-app>

Post by Martin Jacobson
This is what I would do...
0) move the config file to be part of the war file, inside WEB-INF
1) web.xml
<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE web-app
    PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
    "http://java.sun.com/j2ee/dtds/web-app_2.3.dtd">
<web-app>
    <display-name>cartoWeb - vector map server</display-name>
      <context-param>
              <param-name>configuration-file</param-name>
              <param-value>WEB-INF/fop.xconf</param-value>
      </context-param>
      <listener>
<listener-class>com.emc.carto.web.servlet.WebAppInitializer</listener-class>
      </listener>
...
2) Listener
public class WebAppInitializer implements ServletContextListener
{
      ServletContext ctx = null;
      public void contextInitialized(ServletContextEvent sce)
      {
              ctx = sce.getServletContext();
              String configFileName =
ctx.getInitParameter("configuration-file");
              String realConfigFile = ctx.getRealPath(configFileName);
               try {
                     fopFactory.setUserConfig(new File(realConfigFile));
              }
etc.
HTH
Martin

Post by Esse
Hi fopusers!
Latest fop (1.0)
Latest tomcat (7.x)
I’m using the fop servlet example in tomcat, with a config file.
protected void configureFopFactory() {
       try {
               fopFactory.setUserConfig(new File("/conf/fop.xconf"));
       } catch (SAXException e) {
               System.out.println(e);
       } catch (IOException e) {
               System.out.println(e);
       }
   }
However, the path for the config file in the above example is
C:\conf\fop.xconf .
How to make config file path relative(in jar/war/tomcat folder?
Really anywhere would do except a hard path, like
[JAVA_HOME]/conf/fop.xconf
or something like that.
Please help :)
--
http://old.nabble.com/Relative-paths-when-running-FOP-as-servlet-%28Tomcat%29-tp29531194p29531194.html
Sent from the FOP - Users mailing list archive at Nabble.com.
---------------------------------------------------------------------

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From my MacBook Pro
---------------------------------------------------------------------

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From my MacBook Pro
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[Esse]

Hi Martin!

Thanks a lot for your help! However, i'm really a rookie and i need some
clarification to understand :)

How should i modify my web.xml(below)? Should i just add the
<context-param>- and <listener>-part to the web.xml?

I do not fully understand what to do with the listener and how to do it...
where do i put the listener?

Im not really used to Java, so all of this is sort of new to me.

web-app>
<!-- Servlets -->
<servlet>
<servlet-name>Fop</servlet-name>
<servlet-class>org.apache.fop.servlet.FopServlet</servlet-class>
</servlet>
<servlet>
<servlet-name>FopPrint</servlet-name>
<servlet-class>org.apache.fop.servlet.FopPrintServlet</servlet-class>
</servlet>
<!-- Servlet mappings -->
<servlet-mapping>
<servlet-name>Fop</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>FopPrint</servlet-name>
<url-pattern>/fopprint</url-pattern>
</servlet-mapping>
</web-app>




Martin Jacobson wrote:
This is what I would do...

0) move the config file to be part of the war file, inside WEB-INF

1) web.xml

<?xml version="1.0" encoding="ISO-8859-1"?>

<!DOCTYPE web-app
PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
"http://java.sun.com/j2ee/dtds/web-app_2.3.dtd">

<web-app>
<display-name>cartoWeb - vector map server</display-name>

<context-param>
<param-name>configuration-file</param-name>
<param-value>WEB-INF/fop.xconf</param-value>
</context-param>

<listener>

<listener-class>com.emc.carto.web.servlet.WebAppInitializer</listener-class>
</listener>
...

2) Listener

public class WebAppInitializer implements ServletContextListener
{
ServletContext ctx = null;

public void contextInitialized(ServletContextEvent sce)
{
ctx = sce.getServletContext();
String configFileName =
ctx.getInitParameter("configuration-file");
String realConfigFile = ctx.getRealPath(configFileName);
try {
fopFactory.setUserConfig(new File(realConfigFile));
}
etc.


HTH
Martin