Class ContextImpl
- java.lang.Object
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- org.apache.tapestry5.http.internal.services.ContextImpl
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- All Implemented Interfaces:
Context
public class ContextImpl extends java.lang.Object implements Context
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Constructor Summary
Constructors Constructor Description ContextImpl(ServletContext servletContext)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description java.lang.ObjectgetAttribute(java.lang.String name)Returns an attribute previously stored into the context with the given name.java.util.List<java.lang.String>getAttributeNames()Returns the names of all attributes of the context, sorted alphabetically.java.lang.StringgetInitParameter(java.lang.String name)Returns an initial parameter value defined by servlet.java.lang.StringgetMimeType(java.lang.String file)Returns the MIME content type of the specified file, or null if no content type is known.java.io.FilegetRealFile(java.lang.String path)Attempts to find the actual file, on the file system, that would be provided by the servlet container for the given path (which must start with a leading slash).java.net.URLgetResource(java.lang.String path)Returns a URL to a resource stored within the context.java.util.List<java.lang.String>getResourcePaths(java.lang.String path)Looks for resources within the web application within the supplied path.
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Constructor Detail
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ContextImpl
public ContextImpl(ServletContext servletContext)
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Method Detail
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getResource
public java.net.URL getResource(java.lang.String path)
Description copied from interface:ContextReturns a URL to a resource stored within the context. The path should start with a leading slash.- Specified by:
getResourcein interfaceContext- Parameters:
path- to the resource (with a leading slash)- Returns:
- the URL for the path, or null if the path does not correspond to a file.
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getRealFile
public java.io.File getRealFile(java.lang.String path)
Description copied from interface:ContextAttempts to find the actual file, on the file system, that would be provided by the servlet container for the given path (which must start with a leading slash). This may return null if no such file exists, or if the resource in question is packaged inside a WAR. If packaged inside a WAR, the contents may be accessed viaContext.getResource(String).- Specified by:
getRealFilein interfaceContext- Parameters:
path- to the resource (with a leading slash)- Returns:
- the underlying File, or null if no such file
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getInitParameter
public java.lang.String getInitParameter(java.lang.String name)
Description copied from interface:ContextReturns an initial parameter value defined by servlet.- Specified by:
getInitParameterin interfaceContext
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getResourcePaths
public java.util.List<java.lang.String> getResourcePaths(java.lang.String path)
Description copied from interface:ContextLooks for resources within the web application within the supplied path. The list will be recurively expanded, as necessary. The path must start with a leading slash, and usually ends with a slash as well.- Specified by:
getResourcePathsin interfaceContext- Parameters:
path- to search for (should start with a leading slash)- Returns:
- the matches, sorted alphabetically
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getAttribute
public java.lang.Object getAttribute(java.lang.String name)
Description copied from interface:ContextReturns an attribute previously stored into the context with the given name.- Specified by:
getAttributein interfaceContext- Parameters:
name- used to retrieve the attribute- Returns:
- the attribute, or null if not found
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getAttributeNames
public java.util.List<java.lang.String> getAttributeNames()
Description copied from interface:ContextReturns the names of all attributes of the context, sorted alphabetically.- Specified by:
getAttributeNamesin interfaceContext
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getMimeType
public java.lang.String getMimeType(java.lang.String file)
Description copied from interface:ContextReturns the MIME content type of the specified file, or null if no content type is known. MIME types are built-in to servlet containers and may be futher specified via the web application deployment descriptor.- Specified by:
getMimeTypein interfaceContext- Parameters:
file- name of file- Returns:
- the presumed MIME content type, or null if not known
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