| /******************************************************************************* |
| * Copyright (c) 2004, 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 |
| * Rob Harrop - SpringSource Inc. (bug 247522) |
| *******************************************************************************/ |
| package org.eclipse.osgi.internal.resolver; |
| |
| import java.util.*; |
| import java.util.Map.Entry; |
| import org.eclipse.osgi.service.resolver.BaseDescription; |
| import org.osgi.framework.Version; |
| import org.osgi.framework.wiring.BundleCapability; |
| import org.osgi.framework.wiring.BundleRevision; |
| |
| public abstract class BaseDescriptionImpl implements BaseDescription { |
| |
| protected final Object monitor = new Object(); |
| |
| private volatile String name; |
| |
| private volatile Version version; |
| |
| private volatile Object userObject; |
| |
| public String getName() { |
| return name; |
| } |
| |
| public Version getVersion() { |
| synchronized (this.monitor) { |
| if (version == null) |
| return Version.emptyVersion; |
| return version; |
| } |
| } |
| |
| protected void setName(String name) { |
| this.name = name; |
| } |
| |
| protected void setVersion(Version version) { |
| this.version = version; |
| } |
| |
| static <V> String toString(Map<String, V> map, boolean directives) { |
| if (map.size() == 0) |
| return ""; //$NON-NLS-1$ |
| String assignment = directives ? ":=" : "="; //$NON-NLS-1$//$NON-NLS-2$ |
| Set<Entry<String, V>> set = map.entrySet(); |
| StringBuilder sb = new StringBuilder(); |
| for (Entry<String, V> entry : set) { |
| sb.append("; "); //$NON-NLS-1$ |
| String key = entry.getKey(); |
| Object value = entry.getValue(); |
| if (value instanceof List) { |
| @SuppressWarnings("unchecked") |
| List<Object> list = (List<Object>) value; |
| if (list.size() == 0) |
| continue; |
| Object component = list.get(0); |
| String className = component.getClass().getName(); |
| String type = className.substring(className.lastIndexOf('.') + 1); |
| sb.append(key).append(':').append("List<").append(type).append(">").append(assignment).append('"'); //$NON-NLS-1$ //$NON-NLS-2$ |
| for (Object object : list) |
| sb.append(object).append(','); |
| sb.setLength(sb.length() - 1); |
| sb.append('"'); |
| } else { |
| String type = ""; //$NON-NLS-1$ |
| if (!(value instanceof String)) { |
| String className = value.getClass().getName(); |
| type = ":" + className.substring(className.lastIndexOf('.') + 1); //$NON-NLS-1$ |
| } |
| sb.append(key).append(type).append(assignment).append('"').append(value).append('"'); |
| } |
| } |
| return sb.toString(); |
| } |
| |
| String getInternalNameSpace() { |
| return null; |
| } |
| |
| public BaseDescription getFragmentDeclaration() { |
| return null; |
| } |
| |
| public BundleCapability getCapability() { |
| return getCapability(null); |
| } |
| |
| BundleCapability getCapability(String namespace) { |
| BaseDescriptionImpl fragmentDeclaration = (BaseDescriptionImpl) getFragmentDeclaration(); |
| if (fragmentDeclaration != null) |
| return fragmentDeclaration.getCapability(namespace); |
| if (namespace == null) |
| namespace = getInternalNameSpace(); |
| if (namespace == null) |
| return null; |
| return new BaseCapability(namespace); |
| } |
| |
| public Object getUserObject() { |
| return userObject; |
| } |
| |
| public void setUserObject(Object userObject) { |
| this.userObject = userObject; |
| } |
| |
| public class BaseCapability implements BundleCapability { |
| private final String namespace; |
| |
| public BaseCapability(String namespace) { |
| super(); |
| this.namespace = namespace; |
| } |
| |
| public BundleRevision getRevision() { |
| return getSupplier(); |
| } |
| |
| public String getNamespace() { |
| return namespace; |
| } |
| |
| public Map<String, String> getDirectives() { |
| return getDeclaredDirectives(); |
| } |
| |
| public Map<String, Object> getAttributes() { |
| Map<String, Object> attrs = getDeclaredAttributes(); |
| String internalName = BaseDescriptionImpl.this.getInternalNameSpace(); |
| if (namespace.equals(internalName)) |
| return attrs; |
| // we are doing an alias, must remove internal Name and add alias |
| attrs = new HashMap<>(attrs); |
| Object nameValue = attrs.remove(internalName); |
| if (nameValue != null) |
| attrs.put(namespace, nameValue); |
| return Collections.unmodifiableMap(attrs); |
| } |
| |
| @Override |
| public int hashCode() { |
| return System.identityHashCode(BaseDescriptionImpl.this); |
| } |
| |
| public BaseDescriptionImpl getBaseDescription() { |
| return BaseDescriptionImpl.this; |
| } |
| |
| @Override |
| public boolean equals(Object obj) { |
| if (this == obj) |
| return true; |
| if (!(obj instanceof BaseCapability)) |
| return false; |
| return (((BaseCapability) obj).getBaseDescription() == BaseDescriptionImpl.this) && namespace.equals(((BaseCapability) obj).getNamespace()); |
| } |
| |
| @Override |
| public String toString() { |
| return getNamespace() + BaseDescriptionImpl.toString(getAttributes(), false) + BaseDescriptionImpl.toString(getDirectives(), true); |
| } |
| |
| public BundleRevision getResource() { |
| return getRevision(); |
| } |
| } |
| } |