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

            log.warn("Cannot load configuration file " + file.getAbsolutePath());
            return;
        }


        // Load the contents of our configuration file
        Digester digester = new Digester();
        digester.setValidating(false);
        digester.addRuleSet(new MemoryRuleSet());
        try {
            digester.push(this);
            digester.parse(file);
        } catch (Exception e) {
            log.warn("Error processing configuration file " +
                file.getAbsolutePath(), e);
            return;
        } finally {
            digester.reset();
        }


    }

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                    return;
                }
                FileInputStream fis = new FileInputStream(file);


                // Construct a digester to read the XML input file
                Digester digester = new Digester();
                digester.addFactoryCreate
                    ("tomcat-users/group",
                     new MemoryGroupCreationFactory(this));
                digester.addFactoryCreate
                    ("tomcat-users/role",
                     new MemoryRoleCreationFactory(this));
                digester.addFactoryCreate
                    ("tomcat-users/user",
                     new MemoryUserCreationFactory(this));


                // Parse the XML input file to load this database
                try {
                    digester.parse(fis);
                    fis.close();
                } catch (Exception e) {
                    try {
                        fis.close();
                    } catch (Throwable t) {

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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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     * the XML input file, creating a new one if necessary.
     */
    protected synchronized Digester getDigester() {


        if (digester == null) {
            digester = new Digester();
            digester.setValidating(false);
            digester.addRuleSet(new MemoryRuleSet());
        }
        return (digester);

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        // 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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            log.warn("Cannot load configuration file " + file.getAbsolutePath());
            return;
        }


        // Load the contents of our configuration file
        Digester digester = new Digester();
        digester.setValidating(false);
        digester.addRuleSet(new MemoryRuleSet());
        try {
            digester.push(this);
            digester.parse(file);
        } catch (Exception e) {
            log.warn("Error processing configuration file " +
                file.getAbsolutePath(), e);
            return;
        } finally {
            digester.reset();
        }


    }

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                    return;
                }
                FileInputStream fis = new FileInputStream(file);


                // Construct a digester to read the XML input file
                Digester digester = new Digester();
                try {
                    digester.setFeature(
                            "http://apache.org/xml/features/allow-java-encodings",
                            true);
                } catch (Exception e) {
                    log.warn(sm.getString("memoryUserDatabase.xmlFeatureEncoding"), e);
                }
                digester.addFactoryCreate
                    ("tomcat-users/group",
                     new MemoryGroupCreationFactory(this));
                digester.addFactoryCreate
                    ("tomcat-users/role",
                     new MemoryRoleCreationFactory(this));
                digester.addFactoryCreate
                    ("tomcat-users/user",
                     new MemoryUserCreationFactory(this));


                // Parse the XML input file to load this database
                try {
                    digester.parse(fis);
                    fis.close();
                } catch (Exception e) {
                    try {
                        fis.close();
                    } catch (Throwable t) {

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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(ClusterRuleSetFactory.getClusterRuleSet("Server/Service/Engine/Host/Cluster/"));
        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));
        digester.addRuleSet(ClusterRuleSetFactory.getClusterRuleSet("Server/Service/Engine/Cluster/"));


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

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