/*******************************************************************************
* Copyright (c) 2008, 2009 Wind River Systems, Inc. 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:
* Markus Schorn - initial API and implementation
*******************************************************************************/
package org.eclipse.cdt.internal.core.index.composite.cpp;
import java.util.HashMap;
import org.eclipse.cdt.core.CCorePlugin;
import org.eclipse.cdt.core.dom.ast.DOMException;
import org.eclipse.cdt.core.dom.ast.cpp.ICPPTemplateArgument;
import org.eclipse.cdt.core.dom.ast.cpp.ICPPTemplateInstance;
import org.eclipse.cdt.internal.core.dom.parser.cpp.ICPPDeferredClassInstance;
import org.eclipse.cdt.internal.core.dom.parser.cpp.ICPPInstanceCache;
import org.eclipse.cdt.internal.core.index.IIndexFragment;
import org.eclipse.cdt.internal.core.index.IIndexFragmentBinding;
import org.eclipse.cdt.internal.core.index.IndexCPPSignatureUtil;
import org.eclipse.cdt.internal.core.index.composite.ICompositesFactory;
import org.eclipse.core.runtime.CoreException;
public class CompositeInstanceCache {
public static CompositeInstanceCache getCache(ICompositesFactory cf, IIndexFragmentBinding fb) {
final IIndexFragment frag= fb.getFragment();
final Object key = CPPCompositesFactory.createInstanceCacheKey(cf, fb);
Object cache= frag.getCachedResult(key);
if (cache != null) {
return (CompositeInstanceCache) cache;
}
CompositeInstanceCache newCache= new CompositeInstanceCache();
newCache.populate(cf, fb);
return (CompositeInstanceCache) frag.putCachedResult(key, newCache, false);
}
private final HashMap<String, ICPPTemplateInstance> fMap;
private ICPPDeferredClassInstance fDeferredInstance;
public CompositeInstanceCache() {
fMap= new HashMap<String, ICPPTemplateInstance>();
}
synchronized public final void addInstance(ICPPTemplateArgument[] arguments, ICPPTemplateInstance instance) {
try {
String key= IndexCPPSignatureUtil.getTemplateArgString(arguments, true);
fMap.put(key, instance);
} catch (CoreException e) {
CCorePlugin.log(e);
} catch (DOMException e) {
}
}
synchronized public final ICPPTemplateInstance getInstance(ICPPTemplateArgument[] arguments) {
try {
String key= IndexCPPSignatureUtil.getTemplateArgString(arguments, true);
return fMap.get(key);
} catch (CoreException e) {
CCorePlugin.log(e);
} catch (DOMException e) {
}
return null;
}
private void populate(ICompositesFactory cf, IIndexFragmentBinding fb) {
if (fb instanceof ICPPInstanceCache) {
ICPPTemplateInstance[] insts= ((ICPPInstanceCache) fb).getAllInstances();
for (ICPPTemplateInstance ti : insts) {
if (ti instanceof IIndexFragmentBinding) {
ICPPTemplateInstance comp= (ICPPTemplateInstance) cf.getCompositeBinding((IIndexFragmentBinding) ti);
ICPPTemplateArgument[] args= comp.getTemplateArguments();
addInstance(args, comp);
}
}
}
}
synchronized public ICPPTemplateInstance[] getAllInstances() {
return fMap.values().toArray(new ICPPTemplateInstance[fMap.size()]);
}
public ICPPDeferredClassInstance getDeferredInstance() {
return fDeferredInstance;
}
public void putDeferredInstance(ICPPDeferredClassInstance dci) {
fDeferredInstance= dci;
}
}