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SUMMARY: INNER | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD |
java.lang.Object | +--org.apache.catalina.core.ApplicationContext
Standard implementation of ServletContext
that represents
a web application's execution environment. An instance of this class is
associated with each instance of StandardContext
.
Inner Class Summary | |
protected class |
ApplicationContext.PrivilegedGetRequestDispatcher
|
protected class |
ApplicationContext.PrivilegedGetResource
|
protected class |
ApplicationContext.PrivilegedGetResourcePaths
|
protected class |
ApplicationContext.PrivilegedLogException
|
protected class |
ApplicationContext.PrivilegedLogMessage
|
protected class |
ApplicationContext.PrivilegedLogThrowable
|
Constructor Summary | |
ApplicationContext(java.lang.String basePath,
StandardContext context)
Construct a new instance of this class, associated with the specified Context instance. |
Method Summary | |
void |
clearAttributes()
Clear all application-created attributes. |
java.lang.Object |
getAttribute(java.lang.String name)
Return the value of the specified context attribute, if any; otherwise return null . |
java.util.Enumeration |
getAttributeNames()
Return an enumeration of the names of the context attributes associated with this context. |
javax.servlet.ServletContext |
getContext(java.lang.String uri)
Return a ServletContext object that corresponds to a
specified URI on the server. |
java.lang.String |
getInitParameter(java.lang.String name)
Return the value of the specified initialization parameter, or null if this parameter does not exist. |
java.util.Enumeration |
getInitParameterNames()
Return the names of the context's initialization parameters, or an empty enumeration if the context has no initialization parameters. |
static java.lang.String |
getJNDIUri(java.lang.String hostName,
java.lang.String path)
Get full path, based on the host name and the context path. |
int |
getMajorVersion()
Return the major version of the Java Servlet API that we implement. |
java.lang.String |
getMimeType(java.lang.String file)
Return the MIME type of the specified file, or null if
the MIME type cannot be determined. |
int |
getMinorVersion()
Return the minor version of the Java Servlet API that we implement. |
javax.servlet.RequestDispatcher |
getNamedDispatcher(java.lang.String name)
Return a RequestDispatcher object that acts as a
wrapper for the named servlet. |
java.lang.String |
getRealPath(java.lang.String path)
Return the real path for a given virtual path, if possible; otherwise return null . |
javax.servlet.RequestDispatcher |
getRequestDispatcher(java.lang.String path)
Return a RequestDispatcher instance that acts as a
wrapper for the resource at the given path. |
java.net.URL |
getResource(java.lang.String path)
Return the URL to the resource that is mapped to a specified path. |
java.io.InputStream |
getResourceAsStream(java.lang.String path)
Return the requested resource as an InputStream . |
java.util.Set |
getResourcePaths(java.lang.String path)
Return a Set containing the resource paths of resources member of the specified collection. |
javax.naming.directory.DirContext |
getResources()
Return the resources object that is mapped to a specified path. |
java.lang.String |
getServerInfo()
Return the name and version of the servlet container. |
javax.servlet.Servlet |
getServlet(java.lang.String name)
Deprecated. As of Java Servlet API 2.1, with no direct replacement. |
java.lang.String |
getServletContextName()
Return the display name of this web application. |
java.util.Enumeration |
getServletNames()
Deprecated. As of Java Servlet API 2.1, with no direct replacement. |
java.util.Enumeration |
getServlets()
Deprecated. As of Java Servlet API 2.1, with no direct replacement. |
void |
log(java.lang.Exception exception,
java.lang.String message)
Deprecated. As of Java Servlet API 2.1, use log(String, Throwable) instead |
void |
log(java.lang.String message)
Writes the specified message to a servlet log file. |
void |
log(java.lang.String message,
java.lang.Throwable throwable)
Writes the specified message and exception to a servlet log file. |
void |
removeAttribute(java.lang.String name)
Remove the context attribute with the specified name, if any. |
void |
setAttribute(java.lang.String name,
java.lang.Object value)
Bind the specified value with the specified context attribute name, replacing any existing value for that name. |
void |
setAttributeReadOnly(java.lang.String name)
Set an attribute as read only. |
Methods inherited from class java.lang.Object |
clone,
equals,
finalize,
getClass,
hashCode,
notify,
notifyAll,
toString,
wait,
wait,
wait |
Constructor Detail |
public ApplicationContext(java.lang.String basePath, StandardContext context)
context
- The associated Context instanceMethod Detail |
public void clearAttributes()
public javax.naming.directory.DirContext getResources()
public void setAttributeReadOnly(java.lang.String name)
public java.lang.Object getAttribute(java.lang.String name)
null
.name
- Name of the context attribute to returnpublic java.util.Enumeration getAttributeNames()
public javax.servlet.ServletContext getContext(java.lang.String uri)
ServletContext
object that corresponds to a
specified URI on the server. This method allows servlets to gain
access to the context for various parts of the server, and as needed
obtain RequestDispatcher
objects or resources from the
context. The given path must be absolute (beginning with a "/"),
and is interpreted based on our virtual host's document root.uri
- Absolute URI of a resource on the serverpublic java.lang.String getInitParameter(java.lang.String name)
null
if this parameter does not exist.name
- Name of the initialization parameter to retrievepublic java.util.Enumeration getInitParameterNames()
public int getMajorVersion()
public int getMinorVersion()
public java.lang.String getMimeType(java.lang.String file)
null
if
the MIME type cannot be determined.file
- Filename for which to identify a MIME typepublic javax.servlet.RequestDispatcher getNamedDispatcher(java.lang.String name)
RequestDispatcher
object that acts as a
wrapper for the named servlet.name
- Name of the servlet for which a dispatcher is requestedpublic java.lang.String getRealPath(java.lang.String path)
null
.path
- The path to the desired resourcepublic javax.servlet.RequestDispatcher getRequestDispatcher(java.lang.String path)
RequestDispatcher
instance that acts as a
wrapper for the resource at the given path. The path must begin
with a "/" and is interpreted as relative to the current context root.path
- The path to the desired resource.public java.net.URL getResource(java.lang.String path) throws java.net.MalformedURLException
path
- The path to the desired resourcepublic java.io.InputStream getResourceAsStream(java.lang.String path)
InputStream
. The
path must be specified according to the rules described under
getResource
. If no such resource can be identified,
return null
.path
- The path to the desired resource.public java.util.Set getResourcePaths(java.lang.String path)
path
- Collection pathpublic java.lang.String getServerInfo()
public javax.servlet.Servlet getServlet(java.lang.String name)
public java.lang.String getServletContextName()
public java.util.Enumeration getServletNames()
public java.util.Enumeration getServlets()
public void log(java.lang.String message)
message
- Message to be writtenpublic void log(java.lang.Exception exception, java.lang.String message)
log(String, Throwable)
instead
exception
- Exception to be reportedmessage
- Message to be writtenpublic void log(java.lang.String message, java.lang.Throwable throwable)
message
- Message to be writtenthrowable
- Exception to be reportedpublic void removeAttribute(java.lang.String name)
name
- Name of the context attribute to be removedpublic void setAttribute(java.lang.String name, java.lang.Object value)
name
- Attribute name to be boundvalue
- New attribute value to be boundpublic static java.lang.String getJNDIUri(java.lang.String hostName, java.lang.String path)
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