ReferenceAggregatorImpl.java
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/*
* Decompiled with CFR 0_118.
*
* Could not load the following classes:
* org.apache.felix.scr.annotations.Activate
* org.apache.felix.scr.annotations.Component
* org.apache.felix.scr.annotations.Reference
* org.apache.felix.scr.annotations.ReferenceCardinality
* org.apache.felix.scr.annotations.ReferencePolicy
* org.apache.felix.scr.annotations.Service
* org.apache.sling.api.resource.Resource
* org.slf4j.Logger
* org.slf4j.LoggerFactory
*/
package com.adobe.granite.references.impl;
import com.adobe.granite.references.Reference;
import com.adobe.granite.references.ReferenceAggregator;
import com.adobe.granite.references.ReferenceList;
import com.adobe.granite.references.ReferenceProvider;
import com.adobe.granite.references.impl.ReferenceListImpl;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.Collections;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.concurrent.ConcurrentHashMap;
import org.apache.felix.scr.annotations.Activate;
import org.apache.felix.scr.annotations.Component;
import org.apache.felix.scr.annotations.ReferenceCardinality;
import org.apache.felix.scr.annotations.ReferencePolicy;
import org.apache.felix.scr.annotations.Service;
import org.apache.sling.api.resource.Resource;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
@Component(metatype=0)
@Service
@org.apache.felix.scr.annotations.Reference(name="referenceProvider", bind="bindReferenceProvider", unbind="unbindReferenceProvider", referenceInterface=ReferenceProvider.class, cardinality=ReferenceCardinality.OPTIONAL_MULTIPLE, policy=ReferencePolicy.DYNAMIC)
public class ReferenceAggregatorImpl
implements ReferenceAggregator {
private final Logger log = LoggerFactory.getLogger(ReferenceAggregatorImpl.class);
private final Map<String, ReferenceProvider> providerCache = new ConcurrentHashMap<String, ReferenceProvider>(10);
private final Set<String> typeCache = Collections.newSetFromMap(new ConcurrentHashMap(10));
@Override
public ReferenceList createReferenceList(Resource resource) {
return this.createReferenceList(resource, null);
}
@Override
public /* varargs */ ReferenceList createReferenceList(Resource resource, String ... types) {
if (resource == null) {
throw new IllegalArgumentException("Reference list's resource must not be null");
}
List typesToConsider = types != null ? Arrays.asList(types) : Collections.emptyList();
boolean noTypeRestriction = typesToConsider.isEmpty();
ArrayList<Reference> references = new ArrayList<Reference>();
long start = System.currentTimeMillis();
for (ReferenceProvider provider : this.providerCache.values()) {
if (!noTypeRestriction && !typesToConsider.contains(provider.getType())) continue;
try {
long providerStart = System.currentTimeMillis();
List<Reference> providerReferences = provider.getReferences(resource);
this.log.debug(">> Provider [{}] got [{}] reference(s) in [{}]ms", new Object[]{provider.getClass().getName(), providerReferences.size(), System.currentTimeMillis() - providerStart});
references.addAll(providerReferences);
}
catch (Exception e) {
this.log.error("Exception thrown by " + provider.getClass().getName(), (Throwable)e);
}
}
this.log.debug("Got [{}] total reference(s) in [{}ms]", (Object)references.size(), (Object)(System.currentTimeMillis() - start));
return new ReferenceListImpl(resource, references);
}
@Override
public Set<String> getTypes() {
return Collections.unmodifiableSet(this.typeCache);
}
@Activate
protected void activate() {
}
protected void bindReferenceProvider(ReferenceProvider newProvider, Map<String, Object> config) {
String className = newProvider.getClass().getName();
ReferenceProvider provider = this.providerCache.get(className);
if (provider == null) {
this.providerCache.put(className, newProvider);
this.typeCache.add(newProvider.getType());
this.log.info("Bound new reference provider [{}]. Got [{}] providers.", (Object)className, (Object)this.providerCache.size());
} else {
this.log.error("Cannot bind new provider: provider with same class [{}] already present.", (Object)className);
}
}
protected void unbindReferenceProvider(ReferenceProvider provider, Map<String, Object> config) {
String className = provider.getClass().getName();
this.providerCache.remove(className);
String providerReferenceType = provider.getType();
boolean keepType = false;
for (ReferenceProvider cachedProvider : this.providerCache.values()) {
if (!providerReferenceType.equals(cachedProvider.getType())) continue;
keepType = true;
break;
}
if (!keepType) {
this.typeCache.remove(providerReferenceType);
}
this.log.info("Removed reference provider [{}]. Got [{}] providers.", (Object)className, (Object)this.providerCache.size());
}
}