| /******************************************************************************* |
| * Copyright (c) 2012, 2016 IBM Corporation and others. |
| * |
| * This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License 2.0 |
| * which accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.osgi.container; |
| |
| import java.util.*; |
| import org.osgi.framework.namespace.NativeNamespace; |
| import org.osgi.framework.wiring.BundleCapability; |
| |
| /** |
| * An implementation of {@link BundleCapability}. |
| * @since 3.10 |
| */ |
| public final class ModuleCapability implements BundleCapability { |
| private final String namespace; |
| private final Map<String, String> directives; |
| private final Map<String, Object> attributes; |
| private final Map<String, Object> transientAttrs; |
| private final ModuleRevision revision; |
| |
| ModuleCapability(String namespace, Map<String, String> directives, Map<String, Object> attributes, ModuleRevision revision) { |
| this.namespace = namespace; |
| this.directives = directives; |
| this.attributes = attributes; |
| this.transientAttrs = NativeNamespace.NATIVE_NAMESPACE.equals(namespace) ? new HashMap<String, Object>(0) : null; |
| this.revision = revision; |
| } |
| |
| @Override |
| public ModuleRevision getRevision() { |
| return revision; |
| } |
| |
| @Override |
| public String getNamespace() { |
| return namespace; |
| } |
| |
| @Override |
| public Map<String, String> getDirectives() { |
| return directives; |
| } |
| |
| @Override |
| public Map<String, Object> getAttributes() { |
| if (transientAttrs == null) |
| return attributes; |
| Map<String, Object> result = new HashMap<>(transientAttrs); |
| result.putAll(attributes); |
| return Collections.unmodifiableMap(result); |
| } |
| |
| Map<String, Object> getPersistentAttributes() { |
| return attributes; |
| } |
| |
| /** |
| * Only used by the system module for setting transient attributes associated |
| * with the {@link NativeNamespace osgi.native} namespace. |
| * @param transientAttrs |
| */ |
| public void setTransientAttrs(Map<String, ?> transientAttrs) { |
| if (this.transientAttrs == null) { |
| throw new UnsupportedOperationException(namespace + ": namespace does not support transient attributes."); //$NON-NLS-1$ |
| } |
| if (!(getResource().getRevisions().getModule() instanceof SystemModule)) { |
| throw new UnsupportedOperationException("Only allowed to set transient attributes for the system module: " + getResource()); //$NON-NLS-1$ |
| } |
| this.transientAttrs.clear(); |
| this.transientAttrs.putAll(transientAttrs); |
| } |
| |
| @Override |
| public ModuleRevision getResource() { |
| return revision; |
| } |
| |
| @Override |
| public String toString() { |
| return namespace + ModuleRevision.toString(attributes, false) + ModuleRevision.toString(directives, true); |
| } |
| } |