| /******************************************************************************* |
| * Copyright (c) 2004, 2011 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 |
| * Danail Nachev - ProSyst - bug 218625 |
| *******************************************************************************/ |
| package org.eclipse.osgi.internal.module; |
| |
| import java.util.*; |
| |
| public class VersionHashMap<V extends VersionSupplier> extends MappedList<String, V> implements Comparator<V> { |
| private final ResolverImpl resolver; |
| private final boolean preferSystemPackages; |
| |
| public VersionHashMap(ResolverImpl resolver) { |
| this.resolver = resolver; |
| Dictionary<?, ?>[] allProperties = resolver.getState().getPlatformProperties(); |
| Object preferSystem = allProperties.length == 0 ? "true" : allProperties[0].get("osgi.resolver.preferSystemPackages"); //$NON-NLS-1$//$NON-NLS-2$ |
| if (preferSystem == null) |
| preferSystem = "true"; //$NON-NLS-1$ |
| preferSystemPackages = Boolean.valueOf(preferSystem.toString()).booleanValue(); |
| } |
| |
| // assumes existing array is sorted |
| // finds the index where to insert the new value |
| protected int insertionIndex(List<V> existing, V value) { |
| int index = existing.size(); |
| if (compare(existing.get(existing.size() - 1), value) > 0) { |
| index = Collections.binarySearch(existing, value, this); |
| |
| if (index < 0) |
| index = -index - 1; |
| } |
| return index; |
| } |
| |
| public void put(V[] versionSuppliers) { |
| for (int i = 0; i < versionSuppliers.length; i++) |
| put(versionSuppliers[i].getName(), versionSuppliers[i]); |
| } |
| |
| public boolean contains(V vs) { |
| return contains(vs, false) != null; |
| } |
| |
| private V contains(V vs, boolean remove) { |
| List<V> existing = internal.get(vs.getName()); |
| if (existing == null) |
| return null; |
| int index = existing.indexOf(vs); |
| if (index >= 0) { |
| if (remove) { |
| existing.remove(index); |
| if (existing.size() == 0) |
| internal.remove(vs.getName()); |
| } |
| return vs; |
| } |
| return null; |
| } |
| |
| public V remove(V toBeRemoved) { |
| return contains(toBeRemoved, true); |
| } |
| |
| public void remove(V[] versionSuppliers) { |
| for (int i = 0; i < versionSuppliers.length; i++) |
| remove(versionSuppliers[i]); |
| } |
| |
| // Once we have resolved bundles, we need to make sure that version suppliers |
| // from the resolved bundles are ahead of those from unresolved bundles |
| void reorder() { |
| for (Iterator<List<V>> it = internal.values().iterator(); it.hasNext();) { |
| List<V> existing = it.next(); |
| if (existing.size() > 1) |
| Collections.sort(existing, this); |
| } |
| } |
| |
| // Compares two VersionSuppliers for descending ordered sorts. |
| // The VersionSuppliers are sorted by the following priorities |
| // First the resolution status of the supplying bundle. |
| // Second is the supplier version. |
| // Third is the bundle id of the supplying bundle. |
| public int compare(V vs1, V vs2) { |
| // if the selection policy is set then use that |
| if (resolver.getSelectionPolicy() != null) |
| return resolver.getSelectionPolicy().compare(vs1.getBaseDescription(), vs2.getBaseDescription()); |
| if (preferSystemPackages) { |
| String systemBundle = resolver.getSystemBundle(); |
| if (systemBundle.equals(vs1.getBundleDescription().getSymbolicName()) && !systemBundle.equals(vs2.getBundleDescription().getSymbolicName())) |
| return -1; |
| else if (!systemBundle.equals(vs1.getBundleDescription().getSymbolicName()) && systemBundle.equals(vs2.getBundleDescription().getSymbolicName())) |
| return 1; |
| } |
| if (vs1.getBundleDescription().isResolved() != vs2.getBundleDescription().isResolved()) |
| return vs1.getBundleDescription().isResolved() ? -1 : 1; |
| int versionCompare = -(vs1.getVersion().compareTo(vs2.getVersion())); |
| if (versionCompare != 0) |
| return versionCompare; |
| return vs1.getBundleDescription().getBundleId() <= vs2.getBundleDescription().getBundleId() ? -1 : 1; |
| } |
| } |