/*
* 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;
/**
* Aries specific implementation directive that can be added to the
* SubsystemSymbolicName header to defer provision of dependencies to start time
* (refer to jira aries-1383 for fuller description of this behavior).
* <p>
* The legal values for the directives are "start" and "install". The default is
* install.
* <p>
* There are exactly two instances of this type constructed. Statically
* references are
* {@code AriesProvisionDependenciesDirective.PROVISION_DEPENDENCIES_AT_INSTALL}
* or
* {@code AriesProvisionDependenciesDirective.PROVISION_DEPENDENCIES_AT_START}.
*/
public class AriesProvisionDependenciesDirective extends AbstractDirective {
public static final String NAME = "apache-aries-provision-dependencies";
public static final String VALUE_INSTALL = "install";
public static final String VALUE_RESOLVE = "resolve";
public static final AriesProvisionDependenciesDirective INSTALL = new AriesProvisionDependenciesDirective(VALUE_INSTALL);
public static final AriesProvisionDependenciesDirective RESOLVE = new AriesProvisionDependenciesDirective(VALUE_RESOLVE);
public static final AriesProvisionDependenciesDirective DEFAULT = INSTALL;
public static AriesProvisionDependenciesDirective getInstance(String value) {
if (VALUE_INSTALL.equals(value))
return INSTALL;
if (VALUE_RESOLVE.equals(value))
return RESOLVE;
throw new IllegalArgumentException(value);
}
private AriesProvisionDependenciesDirective(String value) {
super(NAME, value);
}
public String getProvisionDependencies() {
return getValue();
}
public boolean isInstall() {
return this == INSTALL;
}
public boolean isResolve() {
return this == RESOLVE;
}
}