/*
* 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.ResourceHelper;
import org.apache.aries.subsystem.core.internal.Utils;
import org.osgi.framework.Version;
import org.osgi.resource.Requirement;
import org.osgi.resource.Resource;
import org.osgi.service.subsystem.SubsystemConstants;
public class DeployedContentHeader
extends AbstractClauseBasedHeader<DeployedContentHeader.Clause>
implements RequirementHeader<DeployedContentHeader.Clause> {
public static class Clause extends AbstractClause {
public static final String ATTRIBUTE_DEPLOYEDVERSION = DeployedVersionAttribute.NAME;
public static final String ATTRIBUTE_RESOURCEID = "resourceId";
public static final String ATTRIBUTE_TYPE = TypeAttribute.NAME;
public static final String DIRECTIVE_REFERENCE = ReferenceDirective.NAME;
public static final String DIRECTIVE_STARTORDER = StartOrderDirective.NAME;
public Clause(String clause) {
super(
parsePath(clause, Patterns.SYMBOLIC_NAME, false),
parseParameters(clause, false),
generateDefaultParameters(
TypeAttribute.DEFAULT,
ReferenceDirective.TRUE));
}
public Clause(Resource resource) {
this(resource, true);
}
public Clause(Resource resource, boolean referenced) {
this(appendResource(resource, new StringBuilder(), referenced)
.toString());
}
public boolean contains(Resource resource) {
return getSymbolicName()
.equals(ResourceHelper.getSymbolicNameAttribute(resource))
&& getDeployedVersion().equals(
ResourceHelper.getVersionAttribute(resource))
&& getType()
.equals(ResourceHelper.getTypeAttribute(resource));
}
public Version getDeployedVersion() {
return ((DeployedVersionAttribute) getAttribute(
ATTRIBUTE_DEPLOYEDVERSION)).getVersion();
}
public String getSymbolicName() {
return path;
}
public int getStartOrder() {
return ((StartOrderDirective) getAttribute(DIRECTIVE_STARTORDER))
.getStartOrder();
}
public String getType() {
return ((TypeAttribute) getAttribute(ATTRIBUTE_TYPE)).getType();
}
public boolean isReferenced() {
return ((ReferenceDirective) getDirective(DIRECTIVE_REFERENCE))
.isReferenced();
}
public DeployedContentRequirement toRequirement(Resource resource) {
return new DeployedContentRequirement(this, resource);
}
}
public static final String NAME = SubsystemConstants.DEPLOYED_CONTENT;
public static DeployedContentHeader newInstance(
Collection<Resource> resources) {
StringBuilder builder = new StringBuilder();
for (Resource resource : resources) {
appendResource(resource, builder, true);
builder.append(',');
}
// Remove the trailing comma.
// TODO Intentionally letting the exception propagate since there must
// be at least one resource.
builder.deleteCharAt(builder.length() - 1);
return new DeployedContentHeader(builder.toString());
}
private static StringBuilder appendResource(Resource resource,
StringBuilder builder, boolean referenced) {
String symbolicName = ResourceHelper.getSymbolicNameAttribute(resource);
Version version = ResourceHelper.getVersionAttribute(resource);
String type = ResourceHelper.getTypeAttribute(resource);
builder.append(symbolicName).append(';')
.append(Clause.ATTRIBUTE_DEPLOYEDVERSION).append('=')
.append(version.toString()).append(';')
.append(Clause.ATTRIBUTE_TYPE).append('=').append(type)
.append(';').append(Clause.ATTRIBUTE_RESOURCEID).append('=')
.append(Utils.getId(resource)).append(';')
.append(Clause.DIRECTIVE_REFERENCE).append(":=")
.append(referenced);
return builder;
}
public DeployedContentHeader(Collection<Clause> clauses) {
super(clauses);
}
public DeployedContentHeader(String value) {
super(
value,
new ClauseFactory<Clause>() {
@Override
public Clause newInstance(String clause) {
return new Clause(clause);
}
});
}
public boolean contains(Resource resource) {
for (Clause clause : getClauses())
if (clause.contains(resource))
return true;
return false;
}
public Clause getClause(Resource resource) {
String symbolicName = ResourceHelper.getSymbolicNameAttribute(resource);
Version version = ResourceHelper.getVersionAttribute(resource);
String type = ResourceHelper.getTypeAttribute(resource);
for (Clause clause : clauses) {
if (symbolicName.equals(clause.getPath())
&& clause.getDeployedVersion().equals(version)
&& type.equals(clause.getType()))
return clause;
}
return null;
}
@Override
public String getName() {
return NAME;
}
@Override
public String getValue() {
return toString();
}
public boolean isReferenced(Resource resource) {
DeployedContentHeader.Clause clause = getClause(resource);
if (clause == null)
return false;
return clause.isReferenced();
}
@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;
}
}