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/**
* Copyright (c) 2004 - 2009 Eike Stepper (Berlin, Germany) and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Simon McDuff - initial API and implementation
* Eike Stepper - maintenance
*/
package org.eclipse.emf.internal.cdo.analyzer;
import org.eclipse.emf.cdo.common.CDOFetchRule;
import org.eclipse.emf.internal.cdo.bundle.OM;
import org.eclipse.net4j.util.om.trace.ContextTracer;
import org.eclipse.emf.ecore.EClass;
import org.eclipse.emf.ecore.EStructuralFeature;
import java.util.Collection;
import java.util.HashMap;
import java.util.Map;
/**
* @author Simon McDuff
*/
public class CDOAnalyzerFeatureInfo
{
private static final ContextTracer TRACER = new ContextTracer(OM.DEBUG, CDOAnalyzerFeatureInfo.class);
private Map<CDOFetchFeatureInfo, CDOFetchFeatureInfo> featureStats = new HashMap<CDOFetchFeatureInfo, CDOFetchFeatureInfo>();
private Map<EClass, CDOFetchRule> fetchRules = new HashMap<EClass, CDOFetchRule>();
public CDOAnalyzerFeatureInfo()
{
}
public Collection<CDOFetchRule> getRules(EClass eClass, EStructuralFeature feature)
{
return fetchRules.values();
}
public synchronized CDOFetchFeatureInfo getFeatureStat(EClass eClass, EStructuralFeature feature)
{
CDOFetchFeatureInfo search = new CDOFetchFeatureInfo(eClass, feature);
CDOFetchFeatureInfo featureRule = featureStats.get(search);
if (featureRule == null)
{
featureRule = search;
featureStats.put(search, featureRule);
}
return featureRule;
}
public boolean isActive(EClass eClass, EStructuralFeature feature)
{
CDOFetchFeatureInfo search = new CDOFetchFeatureInfo(eClass, feature);
CDOFetchFeatureInfo featureRule = featureStats.get(search);
return featureRule != null && featureRule.isActive();
}
public void activate(EClass eClass, EStructuralFeature feature)
{
CDOFetchFeatureInfo info = getFeatureStat(eClass, feature);
if (!info.isActive())
{
info.setActive(true);
addRule(eClass, feature);
}
}
public void deactivate(EClass eClass, EStructuralFeature feature)
{
CDOFetchFeatureInfo info = getFeatureStat(eClass, feature);
if (info.isActive())
{
info.setActive(false);
removeRule(eClass, feature);
}
}
private void addRule(EClass eClass, EStructuralFeature feature)
{
if (TRACER.isEnabled())
{
TRACER.format("Adding rule : {0}.{1}", eClass.getName(), feature.getName());
}
CDOFetchRule fetchRule = fetchRules.get(eClass);
if (fetchRule == null)
{
fetchRule = new CDOFetchRule(eClass);
fetchRules.put(eClass, fetchRule);
}
fetchRule.addFeature(feature);
}
private void removeRule(EClass eClass, EStructuralFeature feature)
{
if (TRACER.isEnabled())
{
TRACER.format("Removing rule : {0}.{1}", eClass.getName(), feature.getName());
}
CDOFetchRule fetchRule = fetchRules.get(eClass);
if (fetchRule == null)
{
return;
}
fetchRule.removeFeature(feature);
}
}
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