Examples with Contained org.apache.catalina.Contained used on opensource projects

Example 1 with Contained

use of org.apache.catalina.Contained in project tomcat by apache.

the class StandardPipeline method setBasic.

/**
     * <p>Set the Valve instance that has been distinguished as the basic
     * Valve for this Pipeline (if any).  Prior to setting the basic Valve,
     * the Valve's <code>setContainer()</code> will be called, if it
     * implements <code>Contained</code>, with the owning Container as an
     * argument.  The method may throw an <code>IllegalArgumentException</code>
     * if this Valve chooses not to be associated with this Container, or
     * <code>IllegalStateException</code> if it is already associated with
     * a different Container.</p>
     *
     * @param valve Valve to be distinguished as the basic Valve
     */
@Override
public void setBasic(Valve valve) {
    // Change components if necessary
    Valve oldBasic = this.basic;
    if (oldBasic == valve)
        return;
    // Stop the old component if necessary
    if (oldBasic != null) {
        if (getState().isAvailable() && (oldBasic instanceof Lifecycle)) {
            try {
                ((Lifecycle) oldBasic).stop();
            } catch (LifecycleException e) {
                log.error("StandardPipeline.setBasic: stop", e);
            }
        }
        if (oldBasic instanceof Contained) {
            try {
                ((Contained) oldBasic).setContainer(null);
            } catch (Throwable t) {
                ExceptionUtils.handleThrowable(t);
            }
        }
    }
    // Start the new component if necessary
    if (valve == null)
        return;
    if (valve instanceof Contained) {
        ((Contained) valve).setContainer(this.container);
    }
    if (getState().isAvailable() && valve instanceof Lifecycle) {
        try {
            ((Lifecycle) valve).start();
        } catch (LifecycleException e) {
            log.error("StandardPipeline.setBasic: start", e);
            return;
        }
    }
    // Update the pipeline
    Valve current = first;
    while (current != null) {
        if (current.getNext() == oldBasic) {
            current.setNext(valve);
            break;
        }
        current = current.getNext();
    }
    this.basic = valve;
}

Example 2 with Contained

use of org.apache.catalina.Contained in project tomcat by apache.

the class StandardPipeline method removeValve.

/**
     * Remove the specified Valve from the pipeline associated with this
     * Container, if it is found; otherwise, do nothing.  If the Valve is
     * found and removed, the Valve's <code>setContainer(null)</code> method
     * will be called if it implements <code>Contained</code>.
     *
     * @param valve Valve to be removed
     */
@Override
public void removeValve(Valve valve) {
    Valve current;
    if (first == valve) {
        first = first.getNext();
        current = null;
    } else {
        current = first;
    }
    while (current != null) {
        if (current.getNext() == valve) {
            current.setNext(valve.getNext());
            break;
        }
        current = current.getNext();
    }
    if (first == basic)
        first = null;
    if (valve instanceof Contained)
        ((Contained) valve).setContainer(null);
    if (valve instanceof Lifecycle) {
        // Stop this valve if necessary
        if (getState().isAvailable()) {
            try {
                ((Lifecycle) valve).stop();
            } catch (LifecycleException e) {
                log.error("StandardPipeline.removeValve: stop: ", e);
            }
        }
        try {
            ((Lifecycle) valve).destroy();
        } catch (LifecycleException e) {
            log.error("StandardPipeline.removeValve: destroy: ", e);
        }
    }
    container.fireContainerEvent(Container.REMOVE_VALVE_EVENT, valve);
}

Example 3 with Contained

use of org.apache.catalina.Contained in project tomcat by apache.

the class StandardPipeline method addValve.

/**
     * <p>Add a new Valve to the end of the pipeline associated with this
     * Container.  Prior to adding the Valve, the Valve's
     * <code>setContainer()</code> method will be called, if it implements
     * <code>Contained</code>, with the owning Container as an argument.
     * The method may throw an
     * <code>IllegalArgumentException</code> if this Valve chooses not to
     * be associated with this Container, or <code>IllegalStateException</code>
     * if it is already associated with a different Container.</p>
     *
     * @param valve Valve to be added
     *
     * @exception IllegalArgumentException if this Container refused to
     *  accept the specified Valve
     * @exception IllegalArgumentException if the specified Valve refuses to be
     *  associated with this Container
     * @exception IllegalStateException if the specified Valve is already
     *  associated with a different Container
     */
@Override
public void addValve(Valve valve) {
    // Validate that we can add this Valve
    if (valve instanceof Contained)
        ((Contained) valve).setContainer(this.container);
    // Start the new component if necessary
    if (getState().isAvailable()) {
        if (valve instanceof Lifecycle) {
            try {
                ((Lifecycle) valve).start();
            } catch (LifecycleException e) {
                log.error("StandardPipeline.addValve: start: ", e);
            }
        }
    }
    // Add this Valve to the set associated with this Pipeline
    if (first == null) {
        first = valve;
        valve.setNext(basic);
    } else {
        Valve current = first;
        while (current != null) {
            if (current.getNext() == basic) {
                current.setNext(valve);
                valve.setNext(basic);
                break;
            }
            current = current.getNext();
        }
    }
    container.fireContainerEvent(Container.ADD_VALVE_EVENT, valve);
}