/**
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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
*
* http://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.apache.camel.model;
import javax.xml.bind.annotation.XmlAccessType;
import javax.xml.bind.annotation.XmlAccessorType;
import javax.xml.bind.annotation.XmlAttribute;
import javax.xml.bind.annotation.XmlRootElement;
import javax.xml.bind.annotation.XmlTransient;
import org.apache.camel.CamelContextAware;
import org.apache.camel.Endpoint;
import org.apache.camel.Processor;
import org.apache.camel.processor.PollEnricher;
import org.apache.camel.processor.aggregate.AggregationStrategy;
import org.apache.camel.processor.aggregate.AggregationStrategyBeanAdapter;
import org.apache.camel.spi.RouteContext;
import org.apache.camel.util.ObjectHelper;
/**
* Represents an XML <pollEnrich/> element
*
* @see org.apache.camel.processor.Enricher
*/
@XmlRootElement(name = "pollEnrich")
@XmlAccessorType(XmlAccessType.FIELD)
public class PollEnrichDefinition extends NoOutputDefinition<PollEnrichDefinition> implements EndpointRequiredDefinition {
@XmlAttribute(name = "uri")
private String resourceUri;
// TODO: For Camel 3.0 we should remove this ref attribute as you can do that in the uri, by prefixing with ref:
@XmlAttribute(name = "ref")
private String resourceRef;
@XmlAttribute
private Long timeout;
@XmlAttribute(name = "strategyRef")
private String aggregationStrategyRef;
@XmlAttribute(name = "strategyMethodName")
private String aggregationStrategyMethodName;
@XmlAttribute(name = "strategyMethodAllowNull")
private Boolean aggregationStrategyMethodAllowNull;
@XmlAttribute
private Boolean aggregateOnException;
@XmlTransient
private AggregationStrategy aggregationStrategy;
public PollEnrichDefinition() {
}
public PollEnrichDefinition(AggregationStrategy aggregationStrategy, String resourceUri, long timeout) {
this.aggregationStrategy = aggregationStrategy;
this.resourceUri = resourceUri;
this.timeout = timeout;
}
@Override
public String toString() {
return "PollEnrich[" + description() + " " + aggregationStrategy + "]";
}
protected String description() {
return FromDefinition.description(getResourceUri(), getResourceRef(), (Endpoint) null);
}
@Override
public String getShortName() {
return "pollEnrich";
}
@Override
public String getLabel() {
return "pollEnrich[" + description() + "]";
}
@Override
public String getEndpointUri() {
if (resourceUri != null) {
return resourceUri;
} else {
return null;
}
}
@Override
public Processor createProcessor(RouteContext routeContext) throws Exception {
if (ObjectHelper.isEmpty(resourceUri) && ObjectHelper.isEmpty(resourceRef)) {
throw new IllegalArgumentException("Either uri or ref must be provided for resource endpoint");
}
// lookup endpoint
Endpoint endpoint;
if (resourceUri != null) {
endpoint = routeContext.resolveEndpoint(resourceUri);
} else {
endpoint = routeContext.resolveEndpoint(null, resourceRef);
}
PollEnricher enricher;
if (timeout != null) {
enricher = new PollEnricher(null, endpoint.createPollingConsumer(), timeout);
} else {
// if no timeout then we should block, and there use a negative timeout
enricher = new PollEnricher(null, endpoint.createPollingConsumer(), -1);
}
AggregationStrategy strategy = createAggregationStrategy(routeContext);
if (strategy == null) {
enricher.setDefaultAggregationStrategy();
} else {
enricher.setAggregationStrategy(strategy);
}
if (getAggregateOnException() != null) {
enricher.setAggregateOnException(getAggregateOnException());
}
return enricher;
}
private AggregationStrategy createAggregationStrategy(RouteContext routeContext) {
AggregationStrategy strategy = getAggregationStrategy();
if (strategy == null && aggregationStrategyRef != null) {
Object aggStrategy = routeContext.lookup(aggregationStrategyRef, Object.class);
if (aggStrategy instanceof AggregationStrategy) {
strategy = (AggregationStrategy) aggStrategy;
} else if (aggStrategy != null) {
AggregationStrategyBeanAdapter adapter = new AggregationStrategyBeanAdapter(aggStrategy, getAggregationStrategyMethodName());
if (getAggregationStrategyMethodAllowNull() != null) {
adapter.setAllowNullNewExchange(getAggregationStrategyMethodAllowNull());
adapter.setAllowNullOldExchange(getAggregationStrategyMethodAllowNull());
}
strategy = adapter;
} else {
throw new IllegalArgumentException("Cannot find AggregationStrategy in Registry with name: " + aggregationStrategyRef);
}
}
if (strategy != null && strategy instanceof CamelContextAware) {
((CamelContextAware) strategy).setCamelContext(routeContext.getCamelContext());
}
return strategy;
}
public String getResourceUri() {
return resourceUri;
}
public void setResourceUri(String resourceUri) {
this.resourceUri = resourceUri;
}
public String getResourceRef() {
return resourceRef;
}
public void setResourceRef(String resourceRef) {
this.resourceRef = resourceRef;
}
public Long getTimeout() {
return timeout;
}
public void setTimeout(Long timeout) {
this.timeout = timeout;
}
public String getAggregationStrategyRef() {
return aggregationStrategyRef;
}
public void setAggregationStrategyRef(String aggregationStrategyRef) {
this.aggregationStrategyRef = aggregationStrategyRef;
}
public String getAggregationStrategyMethodName() {
return aggregationStrategyMethodName;
}
public void setAggregationStrategyMethodName(String aggregationStrategyMethodName) {
this.aggregationStrategyMethodName = aggregationStrategyMethodName;
}
public Boolean getAggregationStrategyMethodAllowNull() {
return aggregationStrategyMethodAllowNull;
}
public void setAggregationStrategyMethodAllowNull(Boolean aggregationStrategyMethodAllowNull) {
this.aggregationStrategyMethodAllowNull = aggregationStrategyMethodAllowNull;
}
public AggregationStrategy getAggregationStrategy() {
return aggregationStrategy;
}
public void setAggregationStrategy(AggregationStrategy aggregationStrategy) {
this.aggregationStrategy = aggregationStrategy;
}
public Boolean getAggregateOnException() {
return aggregateOnException;
}
public void setAggregateOnException(Boolean aggregateOnException) {
this.aggregateOnException = aggregateOnException;
}
}