/*
* 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.HashMap;
import java.util.List;
import java.util.Map;
import org.apache.aries.subsystem.core.capabilityset.SimpleFilter;
import org.osgi.framework.Constants;
import org.osgi.resource.Requirement;
import org.osgi.resource.Resource;
import org.osgi.service.subsystem.SubsystemConstants;
public class SubsystemImportServiceHeader extends AbstractClauseBasedHeader<SubsystemImportServiceHeader.Clause> implements RequirementHeader<SubsystemImportServiceHeader.Clause> {
public static class Clause extends AbstractClause {
public static final String DIRECTIVE_CARDINALITY = CardinalityDirective.NAME;
public static final String DIRECTIVE_EFFECTIVE = EffectiveDirective.NAME;
public static final String DIRECTIVE_FILTER = FilterDirective.NAME;
public static final String DIRECTIVE_RESOLUTION = ResolutionDirective.NAME;
private static final Collection<Parameter> defaultParameters = generateDefaultParameters(
EffectiveDirective.ACTIVE,
ResolutionDirective.MANDATORY,
CardinalityDirective.SINGLE);
public Clause(String clause) {
super(
parsePath(clause, Patterns.OBJECTCLASS_OR_STAR, false),
parseParameters(clause, false),
defaultParameters);
}
public Clause(String path, Map<String, Parameter> parameters, Collection<Parameter> defaultParameters) {
super(path, parameters, defaultParameters);
}
public static Clause valueOf(Requirement requirement) {
String namespace = requirement.getNamespace();
if (!SubsystemImportServiceRequirement.NAMESPACE.equals(namespace)) {
throw new IllegalArgumentException("Invalid namespace:" + namespace);
}
Map<String, Parameter> parameters = new HashMap<String, Parameter>();
String filter = null;
Map<String, String> directives = requirement.getDirectives();
for (Map.Entry<String, String> entry : directives.entrySet()) {
String key = entry.getKey();
if (SubsystemImportServiceRequirement.DIRECTIVE_FILTER.equals(key)) {
filter = entry.getValue();
}
else {
parameters.put(key, DirectiveFactory.createDirective(key, entry.getValue()));
}
}
Map<String, List<SimpleFilter>> attributes = SimpleFilter.attributes(filter);
String path = String.valueOf(attributes.remove(Constants.OBJECTCLASS).get(0).getValue());
Map<String, Object> map = new HashMap<String, Object>(attributes.size());
for (Map.Entry<String, List<SimpleFilter>> entry : attributes.entrySet()) {
map.put(entry.getKey(), entry.getValue().get(0).getValue());
}
if (!map.isEmpty()) {
parameters.put(
SubsystemImportServiceRequirement.DIRECTIVE_FILTER,
DirectiveFactory.createDirective(
SubsystemImportServiceRequirement.DIRECTIVE_FILTER,
SimpleFilter.convert(map).toString()));
}
return new Clause(path, parameters, defaultParameters);
}
public SubsystemImportServiceRequirement toRequirement(Resource resource) {
return new SubsystemImportServiceRequirement(this, resource);
}
}
public static final String NAME = SubsystemConstants.SUBSYSTEM_IMPORTSERVICE;
public SubsystemImportServiceHeader(String value) {
super(
value,
new ClauseFactory<Clause>() {
@Override
public Clause newInstance(String clause) {
return new Clause(clause);
}
});
}
public SubsystemImportServiceHeader(Collection<Clause> clauses) {
super(clauses);
}
@Override
public String getName() {
return NAME;
}
@Override
public String getValue() {
return toString();
}
@Override
public List<SubsystemImportServiceRequirement> toRequirements(Resource resource) {
List<SubsystemImportServiceRequirement> requirements = new ArrayList<SubsystemImportServiceRequirement>(clauses.size());
for (Clause clause : clauses)
requirements.add(clause.toRequirement(resource));
return requirements;
}
}