org.springframework.integration.scheduling.PollerMetadata.java Source code

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/*
 * Copyright 2002-2019 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.springframework.integration.scheduling;

import java.util.List;
import java.util.concurrent.Executor;

import org.aopalliance.aop.Advice;

import org.springframework.beans.factory.BeanFactory;
import org.springframework.integration.transaction.TransactionSynchronizationFactory;
import org.springframework.scheduling.Trigger;
import org.springframework.util.Assert;
import org.springframework.util.ErrorHandler;

/**
 * @author Mark Fisher
 * @author Oleg Zhurakousky
 * @author Gary Russell
 */
public class PollerMetadata {

    public static final int MAX_MESSAGES_UNBOUNDED = Integer.MIN_VALUE;

    public static final String DEFAULT_POLLER_METADATA_BEAN_NAME = "org.springframework.integration.context.defaultPollerMetadata";

    /**
     *  A convenient short alias for the global default poller bean name.
     */
    public static final String DEFAULT_POLLER = DEFAULT_POLLER_METADATA_BEAN_NAME;

    private volatile Trigger trigger;

    private volatile long maxMessagesPerPoll = MAX_MESSAGES_UNBOUNDED;

    private volatile long receiveTimeout = 1000;

    private volatile ErrorHandler errorHandler;

    private volatile List<Advice> adviceChain;

    private volatile Executor taskExecutor;

    private volatile long sendTimeout;

    private volatile TransactionSynchronizationFactory transactionSynchronizationFactory;

    public void setTransactionSynchronizationFactory(
            TransactionSynchronizationFactory transactionSynchronizationFactory) {
        Assert.notNull(transactionSynchronizationFactory, "'transactionSynchronizationFactory' must not be null");
        this.transactionSynchronizationFactory = transactionSynchronizationFactory;
    }

    public TransactionSynchronizationFactory getTransactionSynchronizationFactory() {
        return this.transactionSynchronizationFactory;
    }

    public void setTrigger(Trigger trigger) {
        this.trigger = trigger;
    }

    public Trigger getTrigger() {
        return this.trigger;
    }

    public ErrorHandler getErrorHandler() {
        return this.errorHandler;
    }

    public void setErrorHandler(ErrorHandler errorHandler) {
        this.errorHandler = errorHandler;
    }

    /**
     * Set the maximum number of messages to receive for each poll.
     * A non-positive value indicates that polling should repeat as long
     * as non-null messages are being received and successfully sent.
     *
     * <p>The default is unbounded.
     *
     * @param maxMessagesPerPoll The maxMessagesPerPoll to set.
     *
     * @see #MAX_MESSAGES_UNBOUNDED
     */
    public void setMaxMessagesPerPoll(long maxMessagesPerPoll) {
        this.maxMessagesPerPoll = maxMessagesPerPoll;
    }

    public long getMaxMessagesPerPoll() {
        return this.maxMessagesPerPoll;
    }

    public void setReceiveTimeout(long receiveTimeout) {
        this.receiveTimeout = receiveTimeout;
    }

    public long getReceiveTimeout() {
        return this.receiveTimeout;
    }

    public void setAdviceChain(List<Advice> adviceChain) {
        this.adviceChain = adviceChain;
    }

    public List<Advice> getAdviceChain() {
        return this.adviceChain;
    }

    public void setTaskExecutor(Executor taskExecutor) {
        this.taskExecutor = taskExecutor;
    }

    public Executor getTaskExecutor() {
        return this.taskExecutor;
    }

    public long getSendTimeout() {
        return this.sendTimeout;
    }

    public void setSendTimeout(long sendTimeout) {
        this.sendTimeout = sendTimeout;
    }

    /**
     * Return the default {@link PollerMetadata} bean if available.
     * @param beanFactory BeanFactory for lookup, must not be null.
     * @return The poller metadata.
     */
    public static PollerMetadata getDefaultPollerMetadata(BeanFactory beanFactory) {
        Assert.notNull(beanFactory, "BeanFactory must not be null");
        if (!beanFactory.containsBean(DEFAULT_POLLER_METADATA_BEAN_NAME)) {
            return null;
        }
        return beanFactory.getBean(DEFAULT_POLLER_METADATA_BEAN_NAME, PollerMetadata.class);
    }

}