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/*******************************************************************************
* Copyright (c) 2008, 2009 IBM Corporation 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:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.equinox.internal.p2.metadata.generator;
import org.eclipse.equinox.internal.provisional.p2.core.Version;
import org.eclipse.equinox.internal.provisional.p2.core.VersionRange;
import java.io.*;
import java.util.*;
import org.eclipse.equinox.internal.p2.metadata.generator.features.ProductFile;
import org.eclipse.equinox.internal.provisional.p2.metadata.IInstallableUnit;
import org.eclipse.equinox.internal.provisional.p2.metadata.generator.MetadataGeneratorHelper;
import org.eclipse.equinox.internal.provisional.p2.metadata.generator.Generator.GeneratorResult;
import org.eclipse.equinox.internal.provisional.p2.metadata.query.Collector;
import org.eclipse.equinox.internal.provisional.p2.metadata.query.MatchQuery;
public class ProductQuery extends MatchQuery {
private static final String EQUINOX_LAUNCHER = "org.eclipse.equinox.launcher"; //$NON-NLS-1$
private final ProductFile product;
private final String flavor;
private final Map children = new HashMap();
private final String versionAdvice;
// Collector collects the largest version of each IU
private final Collector collector = new Collector() {
private final HashMap elements = new HashMap();
public boolean accept(Object object) {
if (!(object instanceof IInstallableUnit))
return true;
IInstallableUnit iu = (IInstallableUnit) object;
if (elements.containsKey(iu.getId())) {
IInstallableUnit existing = (IInstallableUnit) elements.get(iu.getId());
if (existing.getVersion().compareTo(iu.getVersion()) >= 0)
return true;
getCollection().remove(existing);
}
elements.put(iu.getId(), iu);
return super.accept(object);
}
};
public ProductQuery(ProductFile product, String flavor, Map configIUs, String versionAdvice) {
this.product = product;
this.flavor = flavor;
this.versionAdvice = versionAdvice;
initialize(configIUs);
}
public Collector getCollector() {
return this.collector;
}
private Properties loadVersions(String location) {
Properties properties = new Properties();
if (location == null)
return properties;
File file = new File(location);
if (file.exists()) {
InputStream stream = null;
try {
stream = new BufferedInputStream(new FileInputStream(file));
properties.load(stream);
} catch (IOException e) {
// nothing
} finally {
if (stream != null)
try {
stream.close();
} catch (IOException e) {
//nothing
}
}
}
return properties;
}
private void initialize(Map configIUs) {
boolean features = product.useFeatures();
Properties versions = loadVersions(versionAdvice);
List contents = features ? product.getFeatures() : product.getPlugins();
for (Iterator iterator = contents.iterator(); iterator.hasNext();) {
String item = (String) iterator.next();
VersionRange range = VersionRange.emptyRange;
if (versions.containsKey(item)) {
Version value = new Version(versions.getProperty(item));
range = new VersionRange(value, true, value, true);
}
if (features) // for features we want the group
item = MetadataGeneratorHelper.getTransformedId(item, false, true);
children.put(item, range);
if (configIUs.containsKey(item)) {
for (Iterator ius = ((Set) configIUs.get(item)).iterator(); ius.hasNext();) {
IInstallableUnit object = (IInstallableUnit) ius.next();
children.put(object.getId(), new VersionRange(object.getVersion(), true, object.getVersion(), true));
}
}
}
//also include the launcher CU fragments as a workaround to bug 218890
String launcherPrefix = product.getId() + ".launcher"; //$NON-NLS-1$
if (configIUs.containsKey(launcherPrefix)) {
for (Iterator ius = ((Set) configIUs.get(launcherPrefix)).iterator(); ius.hasNext();) {
IInstallableUnit object = (IInstallableUnit) ius.next();
children.put(object.getId(), new VersionRange(object.getVersion(), true, object.getVersion(), true));
}
}
//also add the launcher.jar
if (!children.containsKey(EQUINOX_LAUNCHER)) {
children.put(EQUINOX_LAUNCHER, VersionRange.emptyRange);
children.put(flavor + EQUINOX_LAUNCHER, VersionRange.emptyRange);
}
// and launcher fragment CUs
if (configIUs.containsKey(EQUINOX_LAUNCHER)) {
for (Iterator ius = ((Set) configIUs.get(EQUINOX_LAUNCHER)).iterator(); ius.hasNext();) {
IInstallableUnit object = (IInstallableUnit) ius.next();
children.put(object.getId(), new VersionRange(object.getVersion(), true, object.getVersion(), true));
}
}
// feature based product, individual bundle config CUs are under CONFIGURATION_CUS for convenience
if (features && configIUs.containsKey(GeneratorResult.CONFIGURATION_CUS)) {
for (Iterator ius = ((Set) configIUs.get(GeneratorResult.CONFIGURATION_CUS)).iterator(); ius.hasNext();) {
IInstallableUnit object = (IInstallableUnit) ius.next();
children.put(object.getId(), new VersionRange(object.getVersion(), true, object.getVersion(), true));
}
}
}
/* (non-Javadoc)
* @see org.eclipse.equinox.internal.provisional.p2.query.Query#isMatch(java.lang.Object)
*/
public boolean isMatch(Object object) {
if (!(object instanceof IInstallableUnit))
return false;
IInstallableUnit candidate = (IInstallableUnit) object;
VersionRange range = (VersionRange) children.get(candidate.getId());
if (range != null) {
return range.isIncluded(candidate.getVersion());
}
return false;
}
}
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