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/*******************************************************************************
* Copyright (c) 2009 Cloudsmith 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:
* Cloudsmith Inc. - initial API and implementation
*******************************************************************************/
package org.eclipse.equinox.p2.tests.ql;
import org.eclipse.equinox.internal.p2.ql.ExpressionParser;
import org.eclipse.equinox.internal.p2.ql.ItemExpression;
import org.eclipse.equinox.internal.provisional.p2.metadata.*;
import org.eclipse.equinox.internal.provisional.p2.metadata.query.Collector;
import org.eclipse.equinox.p2.ql.PredicateQuery;
import org.eclipse.equinox.p2.repository.metadata.IMetadataRepository;
import org.eclipse.equinox.p2.tests.AbstractProvisioningTest;
public class TestQueryReimplementation extends AbstractProvisioningTest {
public static class UpdateQuery extends PredicateQuery {
private static final ItemExpression expr1;
private static final ItemExpression expr2;
static {
ExpressionParser parser = new ExpressionParser();
// This expression is used in case the updateFrom is an IInstallableUnitPatch
//
expr1 = parser.parsePredicate("$0 ~= updateDescriptor && ($0.id != id || $0.version < version)");
// When updateFrom is not an IInstallableUnitPatch, we need to do one of two things depending
// on if the current item is an InstallableUnitPatch or not.
//
expr2 = parser.parsePredicate("item ~= class('org.eclipse.equinox.internal.provisional.p2.metadata.IInstallableUnitPatch')" + //
"? $0 ~= lifeCycle" + //
": $0 ~= updateDescriptor && ($0.id != id || $0.version < version)");
}
public UpdateQuery(IInstallableUnit updateFrom) {
super(IInstallableUnit.class, updateFrom instanceof IInstallableUnitPatch ? expr1 : expr2, new Object[] {updateFrom, IInstallableUnitPatch.class});
}
}
public static class IUPropertyQuery extends PredicateQuery {
private static final ItemExpression expr = new ExpressionParser().parsePredicate("properties[$0] == $1");
public IUPropertyQuery(String propertyName, String propertyValue) {
super(IInstallableUnit.class, expr, new Object[] {propertyName, propertyValue});
}
}
public static class InstallableUnitQuery extends PredicateQuery {
/**
* A convenience query that will match any {@link IInstallableUnit}
* it encounters.
*/
public static final PredicateQuery ANY = new PredicateQuery("");
private static final ItemExpression idVersionQuery;
private static final ItemExpression idRangeQuery;
static {
ExpressionParser parser = new ExpressionParser();
idVersionQuery = parser.parsePredicate("($0 == null || $0 == id) && ($1 == null || $1 == version)");
idRangeQuery = parser.parsePredicate("($0 == null || $0 == id) && ($1 == null || version ~= $1)");
}
/**
* Creates a query that will match any {@link IInstallableUnit} with the given
* id, regardless of version.
*
* @param id The installable unit id to match, or <code>null</code> to match any id
*/
public InstallableUnitQuery(String id) {
this(id, (Version) null);
}
/**
* Creates a query that will match any {@link IInstallableUnit} with the given
* id, and whose version falls in the provided range.
*
* @param id The installable unit id to match, or <code>null</code> to match any id
* @param range The version range to match
*/
public InstallableUnitQuery(String id, VersionRange range) {
super(IInstallableUnit.class, idRangeQuery, new Object[] {id, range});
}
/**
* Creates a query that will match any {@link IInstallableUnit} with the given
* id and version.
*
* @param id The installable unit id to match, or <code>null</code> to match any id
* @param version The precise version that a matching unit must have
*/
public InstallableUnitQuery(String id, Version version) {
super(IInstallableUnit.class, idVersionQuery, new Object[] {id, version});
}
/**
* Creates a query that will match any {@link IInstallableUnit} with the given
* id and version.
*
* @param versionedId The precise id/version combination that a matching unit must have
*/
public InstallableUnitQuery(IVersionedId versionedId) {
this(versionedId.getId(), versionedId.getVersion());
}
}
/**
* A query that searches for {@link IInstallableUnit} instances that provide
* capabilities that match one or more required capabilities.
*/
public static class CapabilityQuery extends PredicateQuery {
private static final ItemExpression oneCapabilityQuery;
private static final ItemExpression anyCapabilityQuery;
static {
ExpressionParser parser = new ExpressionParser();
oneCapabilityQuery = parser.parsePredicate("item ~= $1");
anyCapabilityQuery = parser.parsePredicate("$1.exists(x | item ~= x)");
}
/**
* Creates a new query on the given required capability.
* @param required The required capability
*/
public CapabilityQuery(IRequiredCapability required) {
super(oneCapabilityQuery, new Object[] {required});
}
/**
* Creates a new query on the given required capabilities. The installable
* unit must provide capabilities that match all of the given required capabilities
* for this query to be satisfied.
* @param required The required capabilities
*/
public CapabilityQuery(IRequiredCapability[] required) {
super(anyCapabilityQuery, new Object[] {required});
}
}
private IInstallableUnit a1;
private IInstallableUnit updateOfA;
private IInstallableUnit a11;
@Override
protected void setUp() throws Exception {
super.setUp();
a1 = createIU("A", Version.create("2.0.0"));
IUpdateDescriptor update = MetadataFactory.createUpdateDescriptor("A", new VersionRange("[2.0.0, 2.0.0]"), 0, "update description");
updateOfA = createIU("UpdateA", Version.createOSGi(1, 0, 0), null, NO_REQUIRES, NO_PROVIDES, NO_PROPERTIES, null, NO_TP_DATA, false, update, NO_REQUIRES);
a11 = createIUUpdate();
}
public void testUpdateWithDifferentId() {
IMetadataRepository repo = createTestMetdataRepository(new IInstallableUnit[] {a1, updateOfA});
Collector c = repo.query(new UpdateQuery(a1), new Collector(), null);
assertEquals(1, c.size());
assertEquals(updateOfA, c.iterator().next());
}
public void testWithSuperiorVersion() {
IMetadataRepository repo2 = createTestMetdataRepository(new IInstallableUnit[] {a11, a1});
Collector c2 = repo2.query(new UpdateQuery(a1), new Collector(), null);
assertEquals(1, c2.size());
assertEquals(a11, c2.iterator().next());
}
private IInstallableUnit createIUUpdate() {
return createIU("A", Version.create("2.1.0"), null, NO_REQUIRES, NO_PROVIDES, NO_PROPERTIES, ITouchpointType.NONE, NO_TP_DATA, false, MetadataFactory.createUpdateDescriptor("A", new VersionRange("[2.0.0, 2.1.0]"), 0, "update description"), null);
}
}
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