Class JspCompilationContext


  • public class JspCompilationContext
    extends Object
    A place holder for various things that are used through out the JSP engine. This is a per-request/per-context data structure. Some of the instance variables are set at different points. Most of the path-related stuff is here - mangling names, versions, dirs, loading resources and dealing with uris.
    Author:
    Anil K. Vijendran, Harish Prabandham, Pierre Delisle, Costin Manolache, Kin-man Chung
    • Method Detail

      • addTaglib

        public void addTaglib​(String uri,
                              TagLibraryInfoImpl taglib)
        Adds the given tag library with the given URI to the context-wide tag library cache.
        Parameters:
        uri - The tag library URI
        taglib - The tag library to add
      • clearTaglibs

        public void clearTaglibs()
        Clears the context-wide tag library cache.
      • clearTagFileJarUrls

        public void clearTagFileJarUrls()
        Clears the context-wide mappings from JAR packaged tag file paths to their corresponding URLs.
      • getClassPath

        public String getClassPath()
        The classpath that is passed off to the Java compiler.
      • setClassPath

        public void setClassPath​(String classPath)
        The classpath that is passed off to the Java compiler.
      • getClassLoader

        public ClassLoader getClassLoader()
        What class loader to use for loading classes while compiling this JSP?
      • setClassLoader

        public void setClassLoader​(URLClassLoader loader)
      • getOutputDir

        public String getOutputDir()
        The output directory to generate code into. The output directory is make up of the scratch directory, which is provide in Options, plus the directory derived from the package name.
      • getCompiler

        public Compiler getCompiler()
      • resolveRelativeUri

        public String resolveRelativeUri​(String uri)
        Get the full value of a URI relative to this compilations context uses current file as the base.
      • getResourceAsStream

        public InputStream getResourceAsStream​(String res)
                                        throws JasperException
        Gets a resource as a stream, relative to the meanings of this context's implementation.
        Returns:
        a null if the resource cannot be found or represented as an InputStream.
        Throws:
        JasperException
      • getRealPath

        public String getRealPath​(String path)
        Gets the actual path of a URI relative to the context of the compilation.
      • getTagFileJarUrls

        public ConcurrentHashMap<String,​URL> getTagFileJarUrls()
        Gets the context-wide mappings from JAR packaged tag file paths to their corresponfing URLs.
      • getTagFileJarUrl

        public URL getTagFileJarUrl()
        Returns the JAR file in which the tag file for which this JspCompilationContext was created is packaged, or null if this JspCompilationContext does not correspond to a tag file, or if the corresponding tag file is not packaged in a JAR.
      • getServletClassName

        public String getServletClassName()
        Just the class name (does not include package name) of the generated class.
      • setServletClassName

        public void setServletClassName​(String className)
      • getJspFile

        public String getJspFile()
        Path of the JSP URI. Note that this is not a file name. This is the context rooted URI of the JSP file.
      • isErrorPage

        public boolean isErrorPage()
        Are we processing something that has been declared as an errorpage?
      • setErrorPage

        public void setErrorPage​(boolean isErrPage)
      • isTagFile

        public boolean isTagFile()
      • getTagInfo

        public javax.servlet.jsp.tagext.TagInfo getTagInfo()
      • setTagInfo

        public void setTagInfo​(javax.servlet.jsp.tagext.TagInfo tagi)
      • isPrototypeMode

        public boolean isPrototypeMode()
        True if we are compiling a tag file in prototype mode. ie we only generate codes with class for the tag handler with empty method bodies.
      • setPrototypeMode

        public void setPrototypeMode​(boolean pm)
      • getServletPackageName

        public String getServletPackageName()
        Package name for the generated class is make up of the base package name, which is user settable, and the derived package name. The derived package name directly mirrors the file heirachy of the JSP page.
      • setServletPackageName

        public void setServletPackageName​(String servletPackageName)
        The package name into which the servlet class is generated.
      • getServletJavaFileName

        public String getServletJavaFileName()
        Full path name of the Java file into which the servlet is being generated.
      • getOptions

        public Options getOptions()
        Get hold of the Options object for this context.
      • getServletContext

        public javax.servlet.ServletContext getServletContext()
      • getFullClassName

        public String getFullClassName()
        Full class name
      • getJavaPath

        public String getJavaPath()
        Path of the Java file relative to the work directory.
      • getClassFileName

        public String getClassFileName()
      • getContentType

        public String getContentType()
        Get the content type of this JSP. Content type includes content type and encoding.
      • setContentType

        public void setContentType​(String contentType)
      • getWriter

        public ServletWriter getWriter()
        Where is the servlet being generated?
      • getTldLocation

        public String[] getTldLocation​(String uri)
                                throws JasperException
        Gets the 'location' of the TLD associated with the given taglib 'uri'.
        Returns:
        An array of two Strings: The first element denotes the real path to the TLD. If the path to the TLD points to a jar file, then the second element denotes the name of the TLD entry in the jar file. Returns null if the given uri is not associated with any tag library 'exposed' in the web application.
        Throws:
        JasperException
      • keepGenerated

        public boolean keepGenerated()
        Are we keeping generated code around?
      • incrementRemoved

        public void incrementRemoved()
      • isRemoved

        public boolean isRemoved()
      • makeOutputDir

        public void makeOutputDir​(String outdir)