Class JspCompilationContext

java/org/apache/jasper/JspCompilationContext.java:50–941

A placeholder for various things that are used throughout 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.

 * mangling names, versions, dirs, loading resources and dealing with uris.
 */
public class JspCompilationContext {

    private final Log log = LogFactory.getLog(JspCompilationContext.class); // must not be static

    private String className;
    private final String jspUri;
    private String basePackageName;
    private String derivedPackageName;
    private String servletJavaFileName;
    private String javaPath;
    private String classFileName;
    private ServletWriter writer;
    private final Options options;
    private final JspServletWrapper jsw;
    private Compiler jspCompiler;
    private String classPath;

    private final String baseURI;
    private String outputDir;
    private final ServletContext context;
    private ClassLoader loader;

    private final JspRuntimeContext rctxt;

    private volatile boolean removed = false;

    // volatile so changes are visible when multiple threads request a JSP file
    // that has been modified
    private volatile URLClassLoader jspLoader;
    private URL baseUrl;
    private Class<?> servletClass;

    private final boolean isTagFile;
    private boolean protoTypeMode;
    private TagInfo tagInfo;
    private Jar tagJar;

    // jspURI _must_ be relative to the context
    /**
     * Creates a compilation context for a JSP page.
     *
     * @param jspUri The URI of the JSP page relative to the context
     * @param options The compilation options
     * @param context The servlet context
     * @param jsw The JSP servlet wrapper
     * @param rctxt The JSP runtime context
     */
    public JspCompilationContext(String jspUri, Options options, ServletContext context, JspServletWrapper jsw,
            JspRuntimeContext rctxt) {
        this(jspUri, null, options, context, jsw, rctxt, null, false);
    }

    /**
     * Creates a compilation context for a tag file.
     *
     * @param tagfile The URI of the tag file
     * @param tagInfo The tag information
     * @param options The compilation options