Examples of org.apache.tomcat.util.scan.StandardJarScanner

org.apache.tomcat.util.scan.StandardJarScanner
The default {@link JarScanner} implementation scans the WEB-INF/lib directoryfollowed by the provided classloader and then works up the classloader hierarchy. This implementation is sufficient to meet the requirements of the Servlet 3.0 specification as well as to provide a number of Tomcat specific extensions. The extensions are:
- Scanning the classloader hierarchy (enabled by default)
- Testing all files to see if they are JARs (disabled by default)
- Testing all directories to see if they are exploded JARs (disabled by default)
All of the extensions may be controlled via configuration.

    public static JarScanner getJarScanner(ServletContext ctxt) {
        JarScanner jarScanner = 
            (JarScanner) ctxt.getAttribute(JarScanner.class.getName());
        if (jarScanner == null) {
            ctxt.log(Localizer.getMessage("jsp.warning.noJarScanner"));
            jarScanner = new StandardJarScanner();
        }
        return jarScanner;
    }

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    }
    
    @Override
    public JarScanner getJarScanner() {
        if (jarScanner == null) {
            jarScanner = new StandardJarScanner();
        }
        return jarScanner;
    }

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            ",/WEB-INF/classes=test/webapp-3.0-virtual-webapp/target/classes";
        VirtualDirContext resources = new VirtualDirContext();
        resources.setExtraResourcePaths(extraMappings);
        ctx.setResources(resources);


        StandardJarScanner jarScanner = new StandardJarScanner();
        jarScanner.setScanAllDirectories(true);
        ctx.setJarScanner(jarScanner);


        tomcat.start();


        assertPageContains("/test/classpathGetResourceAsStream.jsp?path=nonexistent",

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        webXml.merge(orderedFragments);
        return webXml;
    }


    private Map<String, WebXml> scanForFragments(WebXmlParser webXmlParser) throws JasperException {
        StandardJarScanner scanner = new StandardJarScanner();
        // TODO - enabling this means initializing the classloader first in JspC
        scanner.setScanClassPath(false);
        // TODO - configure filter rules from Ant rather then system properties
        scanner.setJarScanFilter(new StandardJarScanFilter());


        FragmentJarScannerCallback callback =
                new FragmentJarScannerCallback(webXmlParser, false, true);
        scanner.scan(JarScanType.PLUGGABILITY, this, callback);
        if (!callback.isOk()) {
            throw new JasperException(Localizer.getMessage("jspc.error.invalidFragment"));
        }
        return callback.getFragments();
    }

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    }
    
    @Override
    public JarScanner getJarScanner() {
        if (jarScanner == null) {
            jarScanner = new StandardJarScanner();
        }
        return jarScanner;
    }

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    }


    @Override
    public JarScanner getJarScanner() {
        if (jarScanner == null) {
            jarScanner = new StandardJarScanner();
        }
        return jarScanner;
    }

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    }
    
    @Override
    public JarScanner getJarScanner() {
        if (jarScanner == null) {
            jarScanner = new StandardJarScanner();
        }
        return jarScanner;
    }

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    }
    
    @Override
    public JarScanner getJarScanner() {
        if (jarScanner == null) {
            jarScanner = new StandardJarScanner();
        }
        return jarScanner;
    }

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