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@javatypes/amqp-client

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declare namespace com { namespace rabbitmq { namespace client { namespace impl { /** * <p>This is a generic implementation of the channels specification * in <i>Channeling Work</i>, Nov 2010 (<tt>channels.pdf</tt>). * Objects of type <b>K</b> must be registered, with <code><b>registerKey(K)</b></code>, * and then they become <i>clients</i> and a queue of * items (type <b>W</b>) is stored for each client. * </p> * Each client has a <i>state</i> which is exactly one of <i>dormant</i>, * <i>in progress</i> or <i>ready</i>. Immediately after registration a client is <i>dormant</i>. * Items may be (singly) added to (the end of) a client's queue with {@link WorkPool#addWorkItem(Object, Object)}. * If the client is <i>dormant</i> it becomes <i>ready</i> thereby. All other states remain unchanged. * The next <i>ready</i> client, together with a collection of its items, * may be retrieved with <code><b>nextWorkBlock(collection,max)</b></code> * (making that client <i>in progress</i>). * An <i>in progress</i> client can finish (processing a batch of items) with <code><b>finishWorkBlock(K)</b></code>. * It then becomes either <i>dormant</i> or <i>ready</i>, depending if its queue of work items is empty or no. * If a client has items queued, it is either <i>in progress</i> or <i>ready</i> but cannot be both. * When work is finished it may be marked <i>ready</i> if there is further work, * or <i>dormant</i> if there is not. * There is never any work for a <i>dormant</i> client. * A client may be unregistered, with <code><b>unregisterKey(K)</b></code>, which removes the client from * all parts of the state, and any queue of items stored with it. * All clients may be unregistered with <code><b>unregisterAllKeys()</b></code>. * <h2>Concurrent Semantics</h2> * This implementation is thread-safe. * @param <K> Key -- type of client * @param <W> Work -- type of work item */ // @ts-ignore class WorkPool<K, W> extends java.lang.Object { // @ts-ignore constructor(queueingTimeout: number /*int*/) /** * Add client <code><b>key</b></code> to pool of item queues, with an empty queue. * A client is initially <i>dormant</i>. * No-op if <code><b>key</b></code> already present. * @param key client to add to pool */ // @ts-ignore public registerKey(key: K): void // @ts-ignore public limit(key: K): void // @ts-ignore public unlimit(key: K): void /** * Remove client from pool and from any other state. Has no effect if client already absent. * @param key of client to unregister */ // @ts-ignore public unregisterKey(key: K): void /** * Remove all clients from pool and from any other state. */ // @ts-ignore public unregisterAllKeys(): void /** * Return the next <i>ready</i> client, * and transfer a collection of that client's items to process. * Mark client <i>in progress</i>. * If there is no <i>ready</i> client, return <code><b>null</b></code>. * @param to collection object in which to transfer items * @param size max number of items to transfer * @return key of client to whom items belong, or <code><b>null</b></code> if there is none. */ // @ts-ignore public nextWorkBlock(to: java.util.Collection<W> | Array<W>, size: number /*int*/): K /** * Add (enqueue) an item for a specific client. * No change and returns <code><b>false</b></code> if client not registered. * If <i>dormant</i>, the client will be marked <i>ready</i>. * @param key the client to add to the work item to * @param item the work item to add to the client queue * @return <code><b>true</b></code> if and only if the client is marked <i>ready</i> * &mdash; <i>as a result of this work item</i> */ // @ts-ignore public addWorkItem(key: K, item: W): boolean /** * Set client no longer <i>in progress</i>. * Ignore unknown clients (and return <code><b>false</b></code>). * @param key client that has finished work * @return <code><b>true</b></code> if and only if client becomes <i>ready</i> * @throws IllegalStateException if registered client not <i>in progress</i> */ // @ts-ignore public finishWorkBlock(key: K): boolean } } } } }