| /* |
| * 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 org.osgi.framework.Constants; |
| |
| public class ResolutionDirective extends AbstractDirective { |
| public static final String NAME = Constants.RESOLUTION_DIRECTIVE; |
| public static final String VALUE_MANDATORY = Constants.RESOLUTION_MANDATORY; |
| public static final String VALUE_OPTIONAL = Constants.RESOLUTION_OPTIONAL; |
| |
| public static final ResolutionDirective MANDATORY = new ResolutionDirective(VALUE_MANDATORY); |
| public static final ResolutionDirective OPTIONAL = new ResolutionDirective(VALUE_OPTIONAL); |
| |
| public ResolutionDirective() { |
| this(VALUE_MANDATORY); |
| } |
| |
| public static ResolutionDirective getInstance(String value) { |
| if (VALUE_MANDATORY.equals(value)) |
| return MANDATORY; |
| if (VALUE_OPTIONAL.equals(value)) |
| return OPTIONAL; |
| else |
| throw new IllegalArgumentException("Invalid " + Constants.RESOLUTION_DIRECTIVE + " directive: " + value); |
| } |
| |
| private ResolutionDirective(String value) { |
| super(NAME, value); |
| } |
| |
| public boolean isMandatory() { |
| return MANDATORY == this || VALUE_MANDATORY.equals(getValue()); |
| } |
| |
| public boolean isOptional() { |
| return OPTIONAL == this || VALUE_OPTIONAL.equals(getValue()); |
| } |
| } |