Examples of org.apache.sling.scripting.jsp.jasper.compiler.JspRuntimeContext

Package org.apache.sling.scripting.jsp.jasper.compiler

Examples of org.apache.sling.scripting.jsp.jasper.compiler.JspRuntimeContext

org.apache.sling.scripting.jsp.jasper.compiler.JspRuntimeContext
Class for tracking JSP compile time file dependencies when the &060;%@include file="..."%&062; directive is used. A background thread periodically checks the files a JSP page is dependent upon. If a dpendent file changes the JSP page which included it is recompiled. Only used if a web application context is a directory. @author Glenn L. Nielsen @version $Revision: 505593 $

        }
    }


    private JspServletWrapper getJspWrapper(final String scriptName, final SlingBindings bindings)
    throws SlingException {
        JspRuntimeContext rctxt = this.getJspRuntimeContext();


      JspServletWrapper wrapper = rctxt.getWrapper(scriptName);
        if (wrapper != null) {
            if ( wrapper.isValid() ) {
                return wrapper;
            }
            synchronized ( this ) {
                rctxt = this.getJspRuntimeContext();
                wrapper = rctxt.getWrapper(scriptName);
                if ( wrapper != null ) {
                    if ( wrapper.isValid() ) {
                        return wrapper;
                    }
                    this.renewJspRuntimeContext();
                    rctxt = this.getJspRuntimeContext();
                }
            }
        }


        wrapper = new JspServletWrapper(servletConfig, options,
                scriptName, false, rctxt, defaultIsSession);
        wrapper = rctxt.addWrapper(scriptName, wrapper);


        return wrapper;
    }

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    private JspRuntimeContext getJspRuntimeContext() {
        if ( this.jspRuntimeContext == null ) {
            synchronized ( this ) {
                if ( this.jspRuntimeContext == null ) {
                    // Initialize the JSP Runtime Context
                    this.jspRuntimeContext = new JspRuntimeContext(slingServletContext,
                            options, ioProvider);
                }
            }
        }
        return this.jspRuntimeContext;

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     */
    @Override
    public void handleEvent(final Event event) {
        final String path = (String)event.getProperty(SlingConstants.PROPERTY_PATH);
        if ( path != null ) {
            final JspRuntimeContext rctxt = this.jspRuntimeContext;
            if ( rctxt != null && rctxt.handleModification(path) ) {
                renewJspRuntimeContext();
            }
        }
    }

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    /**
     * Renew the jsp runtime context.
     * A new context is created, the old context is destroyed in the background
     */
    private void renewJspRuntimeContext() {
        final JspRuntimeContext jrc;
        synchronized ( this ) {
            jrc = this.jspRuntimeContext;
            this.jspRuntimeContext = null;
        }
        final Thread t = new Thread() {

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            final HttpServletResponse res = (HttpServletResponse) response;


            final String path = req.getContextPath() + req.getServletPath() + req.getPathInfo();


            if ( req.getMethod().equals("POST") ) {
                final JspRuntimeContext rctxt = this.jspRuntimeContext;
                this.classLoaderWriter.delete("/org/apache/jsp");
                if ( rctxt != null ) {
                    renewJspRuntimeContext();
                }

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            tldLocationsCache = new OriginalTldLocationsCache(context, true);
        } catch (MalformedURLException me) {
            getLog().error("Cannot setup ServletContext", me);
        }


        rctxt = new JspRuntimeContext(context, this);
        jspConfig = new JspConfig(context);
        tagPluginManager = new TagPluginManager(context);
    }

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    }


    private JspServletWrapperAdapter getJspWrapperAdapter(
            SlingScriptHelper scriptHelper) throws SlingException {


        JspRuntimeContext rctxt = jspRuntimeContext;


        SlingScript script = scriptHelper.getScript();
        String scriptName = script.getScriptResource().getPath();
        JspServletWrapperAdapter wrapper = (JspServletWrapperAdapter) rctxt.getWrapper(scriptName);
        if (wrapper != null) {
            return wrapper;
        }


        synchronized (this) {
            wrapper = (JspServletWrapperAdapter) rctxt.getWrapper(scriptName);
            if (wrapper != null) {
                return wrapper;
            }


            try {


                wrapper = new JspServletWrapperAdapter(servletConfig, options,
                    scriptName, false, rctxt);
                rctxt.addWrapper(scriptName, wrapper);


                return wrapper;
            } catch (JasperException je) {
                if (je.getCause() != null) {
                    throw new SlingException(je.getMessage(), je.getCause());

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            // return options which use the jspClassLoader
            options = new JspServletOptions(slingServletContext, ioProvider,
                componentContext, jspClassLoader, tldLocationsCache);


            // Initialize the JSP Runtime Context
            jspRuntimeContext = new JspRuntimeContext(slingServletContext,
                options);


            // by default access the repository
            jspRuntimeContext.setIOProvider(ioProvider);

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            }
        } else {
            // Use the default Options implementation
            options = new EmbeddedServletOptions(config, context);
        }
        rctxt = new JspRuntimeContext(context, options);
        
        if (log.isDebugEnabled()) {
            log.debug(Localizer.getMessage("jsp.message.scratch.dir.is",
                    options.getScratchDir().toString()));
            log.debug(Localizer.getMessage("jsp.message.dont.modify.servlets"));

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            tldLocationsCache = new TldLocationsCache(context, true);
        } catch (MalformedURLException me) {
            getLog().error("Cannot setup ServletContext", me);
        }


        rctxt = new JspRuntimeContext(context, this);
        jspConfig = new JspConfig(context);
        tagPluginManager = new TagPluginManager(context);
    }

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