/*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.aries.subsystem.core.archive;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import org.apache.aries.subsystem.core.internal.BasicSubsystem;
import org.apache.aries.subsystem.core.internal.OsgiIdentityRequirement;
import org.osgi.framework.Version;
import org.osgi.resource.Requirement;
import org.osgi.resource.Resource;
import org.osgi.service.subsystem.SubsystemConstants;
public class AriesSubsystemParentsHeader extends AbstractClauseBasedHeader<AriesSubsystemParentsHeader.Clause> implements RequirementHeader<AriesSubsystemParentsHeader.Clause> {
public static class Clause extends AbstractClause {
public static final String ATTRIBUTE_VERSION = VersionRangeAttribute.NAME_VERSION;
public static final String ATTRIBUTE_RESOURCEID = "resourceId";
public static final String ATTRIBUTE_TYPE = TypeAttribute.NAME;
public Clause(String clause) {
super(
parsePath(clause, Patterns.SYMBOLIC_NAME, false),
parseParameters(clause, true),
generateDefaultParameters(
TypeAttribute.newInstance(SubsystemConstants.SUBSYSTEM_TYPE_APPLICATION),
VersionRangeAttribute.DEFAULT_VERSION));
}
public Clause(BasicSubsystem subsystem, boolean referenceCount) {
this(appendSubsystem(subsystem, new StringBuilder(), referenceCount).toString());
}
public boolean contains(BasicSubsystem subsystem) {
return getSymbolicName().equals(
subsystem.getSymbolicName())
&& getVersion().equals(
subsystem.getVersion())
&& getType().equals(
subsystem.getType());
}
public long getId() {
Attribute attribute = getAttribute(ATTRIBUTE_RESOURCEID);
if (attribute == null)
return -1;
return Long.valueOf(String.valueOf(attribute.getValue()));
}
public String getSymbolicName() {
return path;
}
public String getType() {
return ((TypeAttribute)getAttribute(ATTRIBUTE_TYPE)).getType();
}
public Version getVersion() {
return ((VersionAttribute)getAttribute(ATTRIBUTE_VERSION)).getVersion();
}
public OsgiIdentityRequirement toRequirement(Resource resource) {
return new OsgiIdentityRequirement(getSymbolicName(), getVersion(), getType(), false);
}
}
public static final String NAME = "AriesSubsystem-Parents";
private static StringBuilder appendSubsystem(BasicSubsystem subsystem, StringBuilder builder, boolean referenceCount) {
String symbolicName = subsystem.getSymbolicName();
Version version = subsystem.getVersion();
String type = subsystem.getType();
builder.append(symbolicName)
.append(';')
.append(Clause.ATTRIBUTE_VERSION)
.append('=')
.append(version.toString())
.append(';')
.append(Clause.ATTRIBUTE_TYPE)
.append('=')
.append(type)
.append(';')
.append(Clause.ATTRIBUTE_RESOURCEID)
.append('=')
.append(subsystem.getSubsystemId());
return builder;
}
public AriesSubsystemParentsHeader(Collection<Clause> clauses) {
super(clauses);
}
public AriesSubsystemParentsHeader(String value) {
super(
value,
new ClauseFactory<Clause>() {
@Override
public Clause newInstance(String clause) {
return new Clause(clause);
}
});
}
public boolean contains(BasicSubsystem subsystem) {
return getClause(subsystem) != null;
}
public Clause getClause(BasicSubsystem subsystem) {
String symbolicName = subsystem.getSymbolicName();
Version version = subsystem.getVersion();
String type = subsystem.getType();
for (Clause clause : clauses) {
if (symbolicName.equals(clause.getPath())
&& clause.getVersion().equals(version)
&& type.equals(clause.getType()))
return clause;
}
return null;
}
@Override
public String getName() {
return NAME;
}
@Override
public String getValue() {
return toString();
}
@Override
public List<Requirement> toRequirements(Resource resource) {
List<Requirement> requirements = new ArrayList<Requirement>(clauses.size());
for (Clause clause : clauses)
requirements.add(clause.toRequirement(resource));
return requirements;
}
}