| /******************************************************************************* |
| * Copyright (c) 2007, 2010 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.equinox.internal.p2.ui.model; |
| |
| import java.util.*; |
| import org.eclipse.core.runtime.IProgressMonitor; |
| import org.eclipse.equinox.internal.p2.ui.*; |
| import org.eclipse.equinox.p2.metadata.IInstallableUnit; |
| import org.eclipse.equinox.p2.metadata.IRequirement; |
| |
| /** |
| * Element wrapper class for IU's that represent categories of |
| * available IU's |
| * |
| * @since 3.4 |
| */ |
| public class CategoryElement extends RemoteQueriedElement implements IIUElement { |
| |
| private ArrayList<IInstallableUnit> ius = new ArrayList<IInstallableUnit>(1); |
| private Collection<IRequirement> requirements; |
| |
| public CategoryElement(Object parent, IInstallableUnit iu) { |
| super(parent); |
| ius.add(iu); |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.equinox.internal.provisional.p2.ui.model.ProvElement#getImageID(java.lang.Object) |
| */ |
| protected String getImageId(Object obj) { |
| return ProvUIImages.IMG_CATEGORY; |
| } |
| |
| public String getLabel(Object o) { |
| IInstallableUnit iu = getIU(); |
| if (iu != null) |
| return iu.getId(); |
| return null; |
| } |
| |
| // don't suppress this warning as it will cause build-time warning |
| // see bug 423628. This should be possible to fix once |
| // the entire hierarchy adopts generics |
| public Object getAdapter(Class adapter) { |
| if (adapter == IInstallableUnit.class) |
| return getIU(); |
| return super.getAdapter(adapter); |
| } |
| |
| protected int getDefaultQueryType() { |
| return QueryProvider.AVAILABLE_IUS; |
| } |
| |
| public IInstallableUnit getIU() { |
| if (ius == null || ius.isEmpty()) |
| return null; |
| return ius.get(0); |
| } |
| |
| public long getSize() { |
| return ProvUI.SIZE_UNKNOWN; |
| } |
| |
| public boolean shouldShowSize() { |
| return false; |
| } |
| |
| public void computeSize(IProgressMonitor monitor) { |
| // Should never be called, since shouldShowSize() returns false |
| } |
| |
| public boolean shouldShowVersion() { |
| return false; |
| } |
| |
| public void mergeIU(IInstallableUnit iu) { |
| ius.add(iu); |
| } |
| |
| public boolean shouldMerge(IInstallableUnit iu) { |
| IInstallableUnit myIU = getIU(); |
| if (myIU == null) |
| return false; |
| return getMergeKey(myIU).equals(getMergeKey(iu)); |
| } |
| |
| private String getMergeKey(IInstallableUnit iu) { |
| String mergeKey = iu.getProperty(IInstallableUnit.PROP_NAME, null); |
| if (mergeKey == null || mergeKey.length() == 0) { |
| mergeKey = iu.getId(); |
| } |
| return mergeKey; |
| } |
| |
| public Collection<IRequirement> getRequirements() { |
| if (ius == null || ius.isEmpty()) |
| return Collections.<IRequirement> emptyList(); |
| if (requirements == null) { |
| if (ius.size() == 1) |
| requirements = getIU().getRequirements(); |
| else { |
| ArrayList<IRequirement> capabilities = new ArrayList<IRequirement>(); |
| for (IInstallableUnit iu : ius) { |
| capabilities.addAll(iu.getRequirements()); |
| } |
| requirements = capabilities; |
| } |
| } |
| return requirements; |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.equinox.internal.p2.ui.model.IIUElement#shouldShowChildren() |
| */ |
| public boolean shouldShowChildren() { |
| return true; |
| } |
| |
| public boolean equals(Object obj) { |
| if (this == obj) |
| return true; |
| if (obj == null) |
| return false; |
| if (!(obj instanceof CategoryElement)) |
| return false; |
| IInstallableUnit myIU = getIU(); |
| IInstallableUnit objIU = ((CategoryElement) obj).getIU(); |
| if (myIU == null || objIU == null) |
| return false; |
| return getMergeKey(myIU).equals(getMergeKey(objIU)); |
| } |
| |
| public int hashCode() { |
| IInstallableUnit iu = getIU(); |
| final int prime = 23; |
| int result = 1; |
| result = prime * result + ((iu == null) ? 0 : getMergeKey(iu).hashCode()); |
| return result; |
| } |
| |
| public String toString() { |
| IInstallableUnit iu = getIU(); |
| if (iu == null) |
| return "NULL"; //$NON-NLS-1$ |
| StringBuffer result = new StringBuffer(); |
| result.append("Category Element - "); //$NON-NLS-1$ |
| result.append(getMergeKey(iu)); |
| result.append(" (merging IUs: "); //$NON-NLS-1$ |
| result.append(ius.toString()); |
| result.append(")"); //$NON-NLS-1$ |
| return result.toString(); |
| } |
| } |