Examples of org.apache.tomcat.util.digester.Digester

org.apache.tomcat.util.digester.Digester

A Digester processes an XML input stream by matching a series of element nesting patterns to execute Rules that have been added prior to the start of parsing. This package was inspired by the XmlMapper class that was part of Tomcat 3.0 and 3.1, but is organized somewhat differently.

See the Digester Developer Guide for more information.

IMPLEMENTATION NOTE - A single Digester instance may only be used within the context of a single thread at a time, and a call to parse() must be completed before another can be initiated even from the same thread.

IMPLEMENTATION NOTE - A bug in Xerces 2.0.2 prevents the support of XML schema. You need Xerces 2.1/2.3 and up to make this class working with XML schema


        // Load the contents of the database file
        if (log.isDebugEnabled())
            log.debug(sm.getString("memoryRealm.loadPath",
                             file.getAbsolutePath()));
        Digester digester = getDigester();
        try {
            synchronized (digester) {
                digester.push(this);
                digester.parse(file);
            }
        } catch (Exception e) {
            throw new LifecycleException
                (sm.getString("memoryRealm.readXml"), e);
        } finally {
            digester.reset();
        }


    }

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     * Create and configure the Digester we will be using for startup.
     */
    protected Digester createStartDigester() {
        long t1=System.currentTimeMillis();
        // Initialize the digester
        Digester digester = new Digester();
        digester.setValidating(false);
        digester.setRulesValidation(true);
        HashMap<Class, List<String>> fakeAttributes = new HashMap<Class, List<String>>();
        ArrayList<String> attrs = new ArrayList<String>();
        attrs.add("className");
        fakeAttributes.put(Object.class, attrs);
        digester.setFakeAttributes(fakeAttributes);
        digester.setClassLoader(StandardServer.class.getClassLoader());


        // Configure the actions we will be using
        digester.addObjectCreate("Server",
                                 "org.apache.catalina.core.StandardServer",
                                 "className");
        digester.addSetProperties("Server");
        digester.addSetNext("Server",
                            "setServer",
                            "org.apache.catalina.Server");


        digester.addObjectCreate("Server/GlobalNamingResources",
                                 "org.apache.catalina.deploy.NamingResources");
        digester.addSetProperties("Server/GlobalNamingResources");
        digester.addSetNext("Server/GlobalNamingResources",
                            "setGlobalNamingResources",
                            "org.apache.catalina.deploy.NamingResources");


        digester.addObjectCreate("Server/Listener",
                                 null, // MUST be specified in the element
                                 "className");
        digester.addSetProperties("Server/Listener");
        digester.addSetNext("Server/Listener",
                            "addLifecycleListener",
                            "org.apache.catalina.LifecycleListener");


        digester.addObjectCreate("Server/Service",
                                 "org.apache.catalina.core.StandardService",
                                 "className");
        digester.addSetProperties("Server/Service");
        digester.addSetNext("Server/Service",
                            "addService",
                            "org.apache.catalina.Service");


        digester.addObjectCreate("Server/Service/Listener",
                                 null, // MUST be specified in the element
                                 "className");
        digester.addSetProperties("Server/Service/Listener");
        digester.addSetNext("Server/Service/Listener",
                            "addLifecycleListener",
                            "org.apache.catalina.LifecycleListener");


        //Executor
        digester.addObjectCreate("Server/Service/Executor",
                         "org.apache.catalina.core.StandardThreadExecutor",
                         "className");
        digester.addSetProperties("Server/Service/Executor");


        digester.addSetNext("Server/Service/Executor",
                            "addExecutor",
                            "org.apache.catalina.Executor");


        
        digester.addRule("Server/Service/Connector",
                         new ConnectorCreateRule());
        digester.addRule("Server/Service/Connector", 
                         new SetAllPropertiesRule(new String[]{"executor"}));
        digester.addSetNext("Server/Service/Connector",
                            "addConnector",
                            "org.apache.catalina.connector.Connector");
        


        digester.addObjectCreate("Server/Service/Connector/Listener",
                                 null, // MUST be specified in the element
                                 "className");
        digester.addSetProperties("Server/Service/Connector/Listener");
        digester.addSetNext("Server/Service/Connector/Listener",
                            "addLifecycleListener",
                            "org.apache.catalina.LifecycleListener");


        // Add RuleSets for nested elements
        digester.addRuleSet(new NamingRuleSet("Server/GlobalNamingResources/"));
        digester.addRuleSet(new EngineRuleSet("Server/Service/"));
        digester.addRuleSet(new HostRuleSet("Server/Service/Engine/"));
        digester.addRuleSet(new ContextRuleSet("Server/Service/Engine/Host/"));
        digester.addRuleSet(new NamingRuleSet("Server/Service/Engine/Host/Context/"));


        // When the 'engine' is found, set the parentClassLoader.
        digester.addRule("Server/Service/Engine",
                         new SetParentClassLoaderRule(parentClassLoader));


        long t2=System.currentTimeMillis();
        if (log.isDebugEnabled())
            log.debug("Digester for server.xml created " + ( t2-t1 ));

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     * Create and configure the Digester we will be using for shutdown.
     */
    protected Digester createStopDigester() {


        // Initialize the digester
        Digester digester = new Digester();


        // Configure the rules we need for shutting down
        digester.addObjectCreate("Server",
                                 "org.apache.catalina.core.StandardServer",
                                 "className");
        digester.addSetProperties("Server");
        digester.addSetNext("Server",
                            "setServer",
                            "org.apache.catalina.Server");


        return (digester);

View Full Code Here

            arguments(arguments);
        }


        if( server == null ) {
            // Create and execute our Digester
            Digester digester = createStopDigester();
            digester.setClassLoader(Thread.currentThread().getContextClassLoader());
            File file = configFile();
            try {
                InputSource is =
                    new InputSource("file://" + file.getAbsolutePath());
                FileInputStream fis = new FileInputStream(file);
                is.setByteStream(fis);
                digester.push(this);
                digester.parse(is);
                fis.close();
            } catch (Exception e) {
                log.error("Catalina.stop: ", e);
                System.exit(1);
            }

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        // Before digester - it may be needed


        initNaming();


        // Create and execute our Digester
        Digester digester = createStartDigester();


        InputSource inputSource = null;
        InputStream inputStream = null;
        File file = null;
        try {
            file = configFile();
            inputStream = new FileInputStream(file);
            inputSource = new InputSource("file://" + file.getAbsolutePath());
        } catch (Exception e) {
            ;
        }
        if (inputStream == null) {
            try {
                inputStream = getClass().getClassLoader()
                    .getResourceAsStream(getConfigFile());
                inputSource = new InputSource
                    (getClass().getClassLoader()
                     .getResource(getConfigFile()).toString());
            } catch (Exception e) {
                ;
            }
        }


        // This should be included in catalina.jar
        // Alternative: don't bother with xml, just create it manually.
        if( inputStream==null ) {
            try {
                inputStream = getClass().getClassLoader()
                .getResourceAsStream("server-embed.xml");
                inputSource = new InputSource
                (getClass().getClassLoader()
                        .getResource("server-embed.xml").toString());
            } catch (Exception e) {
                ;
            }
        }
        


        if ((inputStream == null) && (file != null)) {
            log.warn("Can't load server.xml from " + file.getAbsolutePath());
            return;
        }


        try {
            inputSource.setByteStream(inputStream);
            digester.push(this);
            digester.parse(inputSource);
            inputStream.close();
        } catch (Exception e) {
            log.warn("Catalina.start using "
                               + getConfigFile() + ": " , e);
            return;

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    /**
     * Create (if necessary) and return a Digester configured to process the
     * context configuration descriptor for an application.
     */
    protected static Digester createContextDigester() {
        Digester digester = new Digester();
        digester.setValidating(false);
        RuleSet contextRuleSet = new ContextRuleSet("", false);
        digester.addRuleSet(contextRuleSet);
        RuleSet namingRuleSet = new NamingRuleSet("Context/");
        digester.addRuleSet(namingRuleSet);
        return digester;
    }

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    /**
     * Create (if necessary) and return a Digester configured to process the
     * web application deployment descriptor (web.xml).
     */
    protected static Digester createWebDigester() {
        Digester webDigester =
            createWebXmlDigester(xmlNamespaceAware, xmlValidation);
        return webDigester;
    }

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     * web application deployment descriptor (web.xml).
     */
    public static Digester createWebXmlDigester(boolean namespaceAware,
                                                boolean validation) {
        
        Digester webDigester =  DigesterFactory.newDigester(xmlValidation,
                                                            xmlNamespaceAware,
                                                            webRuleSet);
        return webDigester;
    }

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    /**
     * Create (if necessary) and return a Digester configured to process the
     * context configuration descriptor for an application.
     */
    protected Digester createContextDigester() {
        Digester digester = new Digester();
        digester.setValidating(false);
        RuleSet contextRuleSet = new ContextRuleSet("", false);
        digester.addRuleSet(contextRuleSet);
        RuleSet namingRuleSet = new NamingRuleSet("Context/");
        digester.addRuleSet(namingRuleSet);
        return digester;
    }

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    /**
     * Create the digester which will be used to parse context config files.
     */
    protected static Digester createDigester() {
        Digester digester = new Digester();
        digester.setValidating(false);
        // Add object creation rule
        digester.addObjectCreate("Context", "org.apache.catalina.core.StandardContext",
            "className");
        // Set the properties on that object (it doesn't matter if extra 
        // properties are set)
        digester.addSetProperties("Context");
        return (digester);
    }

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