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/*******************************************************************************
* Copyright (c) 2008, 2009 Code 9 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:
* Code 9 - initial API and implementation
* IBM - ongoing development
******************************************************************************/
package org.eclipse.equinox.p2.publisher;
import java.util.*;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.equinox.internal.provisional.p2.metadata.IInstallableUnit;
import org.eclipse.equinox.internal.provisional.p2.metadata.Version;
import org.eclipse.equinox.internal.provisional.p2.metadata.query.*;
public class PublisherResult implements IPublisherResult {
private static final Collection EMPTY_COLLECTION = new ArrayList(0);
final Map rootIUs = new HashMap();
final Map nonRootIUs = new HashMap();
public void addIU(IInstallableUnit iu, String type) {
if (type == ROOT)
addIU(rootIUs, iu.getId(), iu);
if (type == NON_ROOT)
addIU(nonRootIUs, iu.getId(), iu);
}
public void addIUs(Collection ius, String type) {
for (Iterator i = ius.iterator(); i.hasNext();)
addIU((IInstallableUnit) i.next(), type);
}
private void addIU(Map map, String id, IInstallableUnit iu) {
Set ius = (Set) map.get(id);
if (ius == null) {
ius = new HashSet(11);
map.put(id, ius);
}
ius.add(iu);
}
public IInstallableUnit getIU(String id, Version version, String type) {
if (type == null || type == ROOT) {
Collection ius = (Collection) rootIUs.get(id);
for (Iterator i = ius.iterator(); i.hasNext();) {
IInstallableUnit iu = (IInstallableUnit) i.next();
if (iu.getVersion().equals(version))
return iu;
}
}
if (type == null || type == NON_ROOT) {
Collection ius = (Collection) nonRootIUs.get(id);
for (Iterator i = ius.iterator(); i.hasNext();) {
IInstallableUnit iu = (IInstallableUnit) i.next();
if (iu.getVersion().equals(version))
return iu;
}
}
return null;
}
// TODO this method really should not be needed as it just returns the first
// matching IU non-deterministically.
public IInstallableUnit getIU(String id, String type) {
if (type == null || type == ROOT) {
Collection ius = (Collection) rootIUs.get(id);
if (ius != null && ius.size() > 0)
return (IInstallableUnit) ius.iterator().next();
}
if (type == null || type == NON_ROOT) {
Collection ius = (Collection) nonRootIUs.get(id);
if (ius != null && ius.size() > 0)
return (IInstallableUnit) ius.iterator().next();
}
return null;
}
/**
* Returns the IUs in this result with the given id.
*/
public Collection getIUs(String id, String type) {
if (type == null) {
ArrayList result = new ArrayList();
result.addAll(id == null ? flatten(rootIUs.values()) : getIUs(rootIUs, id));
result.addAll(id == null ? flatten(nonRootIUs.values()) : getIUs(nonRootIUs, id));
return result;
}
if (type == ROOT)
return id == null ? flatten(rootIUs.values()) : (Collection) rootIUs.get(id);
if (type == NON_ROOT)
return id == null ? flatten(nonRootIUs.values()) : (Collection) nonRootIUs.get(id);
return null;
}
private Collection getIUs(Map ius, String id) {
Collection result = (Collection) ius.get(id);
return result == null ? EMPTY_COLLECTION : result;
}
protected List flatten(Collection values) {
ArrayList result = new ArrayList();
for (Iterator i = values.iterator(); i.hasNext();)
for (Iterator j = ((HashSet) i.next()).iterator(); j.hasNext();)
result.add(j.next());
return result;
}
public void merge(IPublisherResult result, int mode) {
if (mode == MERGE_MATCHING) {
addIUs(result.getIUs(null, ROOT), ROOT);
addIUs(result.getIUs(null, NON_ROOT), NON_ROOT);
} else if (mode == MERGE_ALL_ROOT) {
addIUs(result.getIUs(null, ROOT), ROOT);
addIUs(result.getIUs(null, NON_ROOT), ROOT);
} else if (mode == MERGE_ALL_NON_ROOT) {
addIUs(result.getIUs(null, ROOT), NON_ROOT);
addIUs(result.getIUs(null, NON_ROOT), NON_ROOT);
}
}
class QueryableMap implements IQueryable {
private Map map;
public QueryableMap(Map map) {
this.map = map;
}
public Collector query(Query query, Collector collector, IProgressMonitor monitor) {
return query.perform(flatten(this.map.values()).iterator(), collector);
}
}
/**
* Queries both the root and non root IUs
*/
public Collector query(Query query, Collector collector, IProgressMonitor monitor) {
IQueryable nonRootQueryable = new QueryableMap(nonRootIUs);
IQueryable rootQueryable = new QueryableMap(rootIUs);
return new CompoundQueryable(new IQueryable[] {nonRootQueryable, rootQueryable}).query(query, collector, monitor);
}
}
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