Examples of org.apache.tomcat.dbcp.pool2.impl.LinkedBlockingDeque

Package org.apache.tomcat.dbcp.pool2.impl

Examples of org.apache.tomcat.dbcp.pool2.impl.LinkedBlockingDeque

org.apache.tomcat.dbcp.pool2.impl.AbandonedConfig
An optionally-bounded {@linkplain java.util.concurrent.BlockingDeque blockingdeque} based on linked nodes.
The optional capacity bound constructor argument serves as a way to prevent excessive expansion. The capacity, if unspecified, is equal to {@link Integer#MAX_VALUE}. Linked nodes are dynamically created upon each insertion unless this would bring the deque above capacity.
Most operations run in constant time (ignoring time spent blocking). Exceptions include {@link #remove(Object) remove}, {@link #removeFirstOccurrence removeFirstOccurrence}, {@link #removeLastOccurrence removeLastOccurrence}, {@link #contains contains}, {@link #iterator iterator.remove()}, and the bulk operations, all of which run in linear time.
This class and its iterator implement all of the optional methods of the {@link Collection} and {@link Iterator} interfaces.
This class is a member of the Java Collections Framework. @param < E> the type of elements held in this collectionNote: This was copied from Apache Harmony and modified to suit the needs of Commons Pool. @since 2.0

            if (p == null) {
                return;  // Object was abandoned and removed
            } else {
                // Make sure object is not being reclaimed
                synchronized(p) {
                    final PooledObjectState state = p.getState();
                    if (state != PooledObjectState.ALLOCATED) {
                        throw new IllegalStateException(
                                "Object has already been returned to this pool or is invalid");
                    } else {
                        p.markReturning(); // Keep from being marked abandoned

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            if (p == null) {
                return;  // Object was abandoned and removed
            } else {
                // Make sure object is not being reclaimed
                synchronized(p) {
                    final PooledObjectState state = p.getState();
                    if (state != PooledObjectState.ALLOCATED) {
                        throw new IllegalStateException(
                                "Object has already been returned to this pool or is invalid");
                    } else {
                        p.markReturning(); // Keep from being marked abandoned

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            if (p == null) {
                return;  // Object was abandoned and removed
            } else {
                // Make sure object is not being reclaimed
                synchronized(p) {
                    final PooledObjectState state = p.getState();
                    if (state != PooledObjectState.ALLOCATED) {
                        throw new IllegalStateException(
                                "Object has already been returned to this pool or is invalid");
                    } else {
                        p.markReturning(); // Keep from being marked abandoned

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     * exceptions queue.
     *
     * @param e exception to be swallowed
     */
    final void swallowException(Exception e) {
        SwallowedExceptionListener listener = getSwallowedExceptionListener();


        if (listener == null) {
            return;
        }


        try {
            listener.onSwallowException(e);
        } catch (OutOfMemoryError oome) {
            throw oome;
        } catch (VirtualMachineError vme) {
            throw vme;
        } catch (Throwable t) {

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     * exceptions queue.
     *
     * @param e exception to be swallowed
     */
    final void swallowException(Exception e) {
        SwallowedExceptionListener listener = getSwallowedExceptionListener();


        if (listener == null) {
            return;
        }


        try {
            listener.onSwallowException(e);
        } catch (OutOfMemoryError oome) {
            throw oome;
        } catch (VirtualMachineError vme) {
            throw vme;
        } catch (Throwable t) {

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     * exceptions queue.
     *
     * @param e exception to be swallowed
     */
    final void swallowException(Exception e) {
        SwallowedExceptionListener listener = getSwallowedExceptionListener();


        if (listener == null) {
            return;
        }


        try {
            listener.onSwallowException(e);
        } catch (OutOfMemoryError oome) {
            throw oome;
        } catch (VirtualMachineError vme) {
            throw vme;
        } catch (Throwable t) {

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     *                                     invoked
     */
    public void setRemoveAbandonedOnMaintenance(
            boolean removeAbandonedOnMaintenance) {
        if (abandonedConfig == null) {
            abandonedConfig = new AbandonedConfig();
        }
        abandonedConfig.setRemoveAbandonedOnMaintenance(
                removeAbandonedOnMaintenance);
    }

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     * @param removeAbandonedOnBorrow true means abandoned connections will be
     *                                removed during pool maintenance
     */
    public void setRemoveAbandonedOnBorrow(boolean removeAbandonedOnBorrow) {
        if (abandonedConfig == null) {
            abandonedConfig = new AbandonedConfig();
        }
        abandonedConfig.setRemoveAbandonedOnBorrow(removeAbandonedOnBorrow);
    }

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     * @see #getRemoveAbandonedOnBorrow()
     * @see #getRemoveAbandonedOnMaintenance()
     */
    public void setRemoveAbandonedTimeout(int removeAbandonedTimeout) {
        if (abandonedConfig == null) {
            abandonedConfig = new AbandonedConfig();
        }
        abandonedConfig.setRemoveAbandonedTimeout(removeAbandonedTimeout);
    }

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    /**
     * @param logAbandoned new logAbandoned property value
     */
    public void setLogAbandoned(boolean logAbandoned) {
        if (abandonedConfig == null) {
            abandonedConfig = new AbandonedConfig();
        }
        abandonedConfig.setLogAbandoned(logAbandoned);
    }

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