Examples of org.apache.catalina.Pipeline

org.apache.catalina.Pipeline

Interface describing a collection of Valves that should be executed in sequence when the invoke() method is invoked. It is required that a Valve somewhere in the pipeline (usually the last one) must process the request and create the corresponding response, rather than trying to pass the request on.

There is generally a single Pipeline instance associated with each Container. The container's normal request processing functionality is generally encapsulated in a container-specific Valve, which should always be executed at the end of a pipeline. To facilitate this, the setBasic() method is provided to set the Valve instance that will always be executed last. Other Valves will be executed in the order that they were added, before the basic Valve is executed.
@author Craig R. McClanahan @author Peter Donald @version $Revision: 466595 $ $Date: 2006-10-21 23:24:41 +0100 (Sat, 21 Oct 2006) $

        }


        // Add this Valve to our Pipeline
        try {
            if (context instanceof ContainerBase) {
                Pipeline pipeline = ((ContainerBase) context).getPipeline();
                if (pipeline != null) {
                    ((ContainerBase) context).addValve(certificates);
                    log(sm.getString
                        ("contextConfig.certificatesConfig.added"));
                }

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            authenticatorConfig();


        // Dump the contents of this pipeline if requested
        if ((debug >= 1) && (context instanceof ContainerBase)) {
            log("Pipline Configuration:");
            Pipeline pipeline = ((ContainerBase) context).getPipeline();
            Valve valves[] = null;
            if (pipeline != null)
                valves = pipeline.getValves();
            if (valves != null) {
                for (int i = 0; i < valves.length; i++) {
                    log("  " + valves[i].getInfo());
                }
            }

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    }


    
    private Valve findValve(Container container, int seq) {        
        Pipeline pipeline = container.getPipeline();
        if (pipeline == null) {
            return null;
        }
        Valve[] valves = pipeline.getValves();
        if (valves == null || seq >= valves.length) {
            return null;
        } else {
            return valves[seq];
        }

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            searchAccessLogValves(container);
        }
    }


    private void searchAccessLogValves(Container container) {
        Pipeline pipeline = container.getPipeline();
        if (pipeline == null) {
            return;
        }
        Valve[] valves = pipeline.getValves();
        if (valves == null || valves.length == 0) {
            return;
        }
        for (Valve valve : valves) {
            if (valve instanceof AccessLogValve) {

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        for (String alias : getAlias()) {
            host.addAlias(alias);
        }


        //valve
        Pipeline pipeline = host.getPipeline();
        for (ValveType valveType : getValve()) {
            Valve valve = valveType.getValve(cl);
            pipeline.addValve(valve);
        }


        //context
        //TODO contexts
        return host;

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                ok = false;
            }
        }


        if (authenticator != null) {
            Pipeline pipeline = context.getPipeline();
            if (pipeline != null) {
                pipeline.addValve(authenticator);
                if (log.isDebugEnabled()) {
                    log.debug(sm.getString(
                                    "contextConfig.authenticatorConfigured",
                                    loginConfig.getAuthMethod()));
                }

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        }


        // Dump the contents of this pipeline if requested
        if (log.isDebugEnabled()) {
            log.debug("Pipeline Configuration:");
            Pipeline pipeline = context.getPipeline();
            Valve valves[] = null;
            if (pipeline != null) {
                valves = pipeline.getValves();
            }
            if (valves != null) {
                for (int i = 0; i < valves.length; i++) {
                    log.debug("  " + valves[i].getClass().getName());
                }

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        Container container=this.getContainer();
        if( container == null || ! (container instanceof ContainerBase) )
            return null;
        this.containerLog = container.getLogger();
        ContainerBase containerBase=(ContainerBase)container;
        Pipeline pipe=containerBase.getPipeline();
        Valve valves[]=pipe.getValves();


        /* Compute the "parent name" part */
        String parentName="";
        if (container instanceof Engine) {
        } else if (container instanceof Host) {

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        // Has an authenticator been configured already?
        if (context instanceof Authenticator)
            return;
        if (context instanceof ContainerBase) {
            Pipeline pipeline = ((ContainerBase) context).getPipeline();
            if (pipeline != null) {
                Valve basic = pipeline.getBasic();
                if ((basic != null) && (basic instanceof Authenticator))
                    return;
                Valve valves[] = pipeline.getValves();
                for (int i = 0; i < valves.length; i++) {
                    if (valves[i] instanceof Authenticator)
                        return;
                }
            }
        } else {
            return;     // Cannot install a Valve even if it would be needed
        }


        // Has a Realm been configured for us to authenticate against?
        if (context.getRealm() == null) {
            log.error(sm.getString("contextConfig.missingRealm"));
            ok = false;
            return;
        }


        /*
         * First check to see if there is a custom mapping for the login
         * method. If so, use it. Otherwise, check if there is a mapping in
         * org/apache/catalina/startup/Authenticators.properties.
         */
        Valve authenticator = null;
        if (customAuthenticators != null) {
            authenticator = (Valve)
                customAuthenticators.get(loginConfig.getAuthMethod());
        }
        if (authenticator == null) {
            // Load our mapping properties if necessary
            if (authenticators == null) {
                try {
                    InputStream is=this.getClass().getClassLoader().getResourceAsStream("org/apache/catalina/startup/Authenticators.properties");
                    if( is!=null ) {
                        authenticators = new Properties();
                        authenticators.load(is);
                    } else {
                        log.error(sm.getString(
                                "contextConfig.authenticatorResources"));
                        ok=false;
                        return;
                    }
                } catch (IOException e) {
                    log.error(sm.getString(
                                "contextConfig.authenticatorResources"), e);
                    ok = false;
                    return;
                }
            }


            // Identify the class name of the Valve we should configure
            String authenticatorName = null;
            authenticatorName =
                    authenticators.getProperty(loginConfig.getAuthMethod());
            if (authenticatorName == null) {
                log.error(sm.getString("contextConfig.authenticatorMissing",
                                 loginConfig.getAuthMethod()));
                ok = false;
                return;
            }


            // Instantiate and install an Authenticator of the requested class
            try {
                Class authenticatorClass = Class.forName(authenticatorName);
                authenticator = (Valve) authenticatorClass.newInstance();
            } catch (Throwable t) {
                log.error(sm.getString(
                                    "contextConfig.authenticatorInstantiate",
                                    authenticatorName),
                          t);
                ok = false;
            }
        }


        if (authenticator != null && context instanceof ContainerBase) {
            Pipeline pipeline = ((ContainerBase) context).getPipeline();
            if (pipeline != null) {
                ((ContainerBase) context).addValve(authenticator);
                if (log.isDebugEnabled()) {
                    log.debug(sm.getString(
                                    "contextConfig.authenticatorConfigured",

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            authenticatorConfig();


        // Dump the contents of this pipeline if requested
        if ((log.isDebugEnabled()) && (context instanceof ContainerBase)) {
            log.debug("Pipeline Configuration:");
            Pipeline pipeline = ((ContainerBase) context).getPipeline();
            Valve valves[] = null;
            if (pipeline != null)
                valves = pipeline.getValves();
            if (valves != null) {
                for (int i = 0; i < valves.length; i++) {
                    log.debug("  " + valves[i].getInfo());
                }
            }

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