/*
 * Copyright 2002-2015 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.jms.listener.endpoint;

import javax.jms.Session;

import org.springframework.core.Constants;
import org.springframework.jms.support.converter.MessageConverter;

/**
 * Common configuration object for activating a JMS message endpoint.
 * Gets converted into a provider-specific JCA 1.5 ActivationSpec
 * object for activating the endpoint.
 *
 * <p>Typically used in combination with {@link JmsMessageEndpointManager},
 * but not tied to it.
 *
 * @author Juergen Hoeller
 * @author Stephane Nicoll
 * @since 2.5
 * @see JmsActivationSpecFactory
 * @see JmsMessageEndpointManager#setActivationSpecConfig
 * @see javax.resource.spi.ResourceAdapter#endpointActivation
 */
public class JmsActivationSpecConfig {

        /** Constants instance for javax.jms.Session */
        private static final Constants sessionConstants = new Constants(Session.class);


        private String destinationName;

        private boolean pubSubDomain = false;

        private Boolean replyPubSubDomain;

        private boolean subscriptionDurable = false;

        private boolean subscriptionShared = false;

        private String subscriptionName;

        private String clientId;

        private String messageSelector;

        private int acknowledgeMode = Session.AUTO_ACKNOWLEDGE;

        private int maxConcurrency = -1;

        private int prefetchSize = -1;

        private MessageConverter messageConverter;


        public void setDestinationName(String destinationName) {
                this.destinationName = destinationName;
        }

        public String getDestinationName() {
                return this.destinationName;
        }

        public void setPubSubDomain(boolean pubSubDomain) {
                this.pubSubDomain = pubSubDomain;
        }

        public boolean isPubSubDomain() {
                return this.pubSubDomain;
        }

        public void setReplyPubSubDomain(boolean replyPubSubDomain) {
                this.replyPubSubDomain = replyPubSubDomain;
        }

        public boolean isReplyPubSubDomain() {
                if (this.replyPubSubDomain != null) {
                        return this.replyPubSubDomain;
                }
                else {
                        return isPubSubDomain();
                }
        }

        public void setSubscriptionDurable(boolean subscriptionDurable) {
                this.subscriptionDurable = subscriptionDurable;
                if (subscriptionDurable) {
                        this.pubSubDomain = true;
                }
        }

        public boolean isSubscriptionDurable() {
                return this.subscriptionDurable;
        }

        public void setSubscriptionShared(boolean subscriptionShared) {
                this.subscriptionShared = subscriptionShared;
                if (subscriptionShared) {
                        this.pubSubDomain = true;
                }
        }

        public boolean isSubscriptionShared() {
                return this.subscriptionShared;
        }

        public void setSubscriptionName(String subscriptionName) {
                this.subscriptionName = subscriptionName;
        }

        public String getSubscriptionName() {
                return this.subscriptionName;
        }

        public void setDurableSubscriptionName(String durableSubscriptionName) {
                this.subscriptionName = durableSubscriptionName;
                this.subscriptionDurable = true;
        }

        public String getDurableSubscriptionName() {
                return (this.subscriptionDurable ? this.subscriptionName : null);
        }

        public void setClientId(String clientId) {
                this.clientId = clientId;
        }

        public String getClientId() {
                return this.clientId;
        }

        public void setMessageSelector(String messageSelector) {
                this.messageSelector = messageSelector;
        }

        public String getMessageSelector() {
                return this.messageSelector;
        }

        /**
         * Set the JMS acknowledgement mode by the name of the corresponding constant
         * in the JMS {@link Session} interface, e.g. "CLIENT_ACKNOWLEDGE".
         * <p>Note that JCA resource adapters generally only support auto and dups-ok
         * (see Spring's {@link StandardJmsActivationSpecFactory}). ActiveMQ also
         * supports "SESSION_TRANSACTED" in the form of RA-managed transactions
         * (automatically translated by Spring's {@link DefaultJmsActivationSpecFactory}.
         * @param constantName the name of the {@link Session} acknowledge mode constant
         * @see javax.jms.Session#AUTO_ACKNOWLEDGE
         * @see javax.jms.Session#CLIENT_ACKNOWLEDGE
         * @see javax.jms.Session#DUPS_OK_ACKNOWLEDGE
         * @see javax.jms.Session#SESSION_TRANSACTED
         * @see StandardJmsActivationSpecFactory
         * @see DefaultJmsActivationSpecFactory
         */
        public void setAcknowledgeModeName(String constantName) {
                setAcknowledgeMode(sessionConstants.asNumber(constantName).intValue());
        }

        /**
         * Set the JMS acknowledgement mode to use.
         * @see javax.jms.Session#AUTO_ACKNOWLEDGE
         * @see javax.jms.Session#CLIENT_ACKNOWLEDGE
         * @see javax.jms.Session#DUPS_OK_ACKNOWLEDGE
         * @see javax.jms.Session#SESSION_TRANSACTED
         */
        public void setAcknowledgeMode(int acknowledgeMode) {
                this.acknowledgeMode = acknowledgeMode;
        }

        /**
         * Return the JMS acknowledgement mode to use.
         */
        public int getAcknowledgeMode() {
                return this.acknowledgeMode;
        }

        /**
         * Specify concurrency limits via a "lower-upper" String, e.g. "5-10", or a simple
         * upper limit String, e.g. "10".
         * <p>JCA listener containers will always scale from zero to the given upper limit.
         * A specified lower limit will effectively be ignored.
         * <p>This property is primarily supported for configuration compatibility with
         * {@link org.springframework.jms.listener.DefaultMessageListenerContainer}.
         * For this activation config, generally use {@link #setMaxConcurrency} instead.
         */
        public void setConcurrency(String concurrency) {
                try {
                        int separatorIndex = concurrency.indexOf('-');
                        if (separatorIndex != -1) {
                                setMaxConcurrency(Integer.parseInt(concurrency.substring(separatorIndex + 1)));
                        }
                        else {
                                setMaxConcurrency(Integer.parseInt(concurrency));
                        }
                }
                catch (NumberFormatException ex) {
                        throw new IllegalArgumentException("Invalid concurrency value [" + concurrency + "]: only " +
                                        "single maximum integer (e.g. \"5\") and minimum-maximum combo (e.g. \"3-5\") supported. " +
                                        "Note that JmsActivationSpecConfig will effectively ignore the minimum value and " +
                                        "scale from zero up to the number of consumers according to the maximum value.");
                }
        }

        /**
         * Specify the maximum number of consumers/sessions to use, effectively
         * controlling the number of concurrent invocations on the target listener.
         */
        public void setMaxConcurrency(int maxConcurrency) {
                this.maxConcurrency = maxConcurrency;
        }

        /**
         * Return the maximum number of consumers/sessions to use.
         */
        public int getMaxConcurrency() {
                return this.maxConcurrency;
        }

        /**
         * Specify the maximum number of messages to load into a session
         * (a kind of batch size).
         */
        public void setPrefetchSize(int prefetchSize) {
                this.prefetchSize = prefetchSize;
        }

        /**
         * Return the maximum number of messages to load into a session.
         */
        public int getPrefetchSize() {
                return this.prefetchSize;
        }

        /**
         * Set the {@link MessageConverter} strategy for converting JMS Messages.
         * @param messageConverter the message converter to use
         */
        public void setMessageConverter(MessageConverter messageConverter) {
                this.messageConverter = messageConverter;
        }

        /**
         * Return the {@link MessageConverter} to use, if any.
         */
        public MessageConverter getMessageConverter() {
                return this.messageConverter;
        }

}