public void computeImports() throws CoreException {
// some existing imports may valid and can be preserved
Vector preservedImports = new Vector(fImports.size());
// new imports
ArrayList newImports = new ArrayList();
IPluginModelBase model = null;
for (int i = 0; i < fPlugins.size(); i++) {
IFeaturePlugin fp = (IFeaturePlugin) fPlugins.get(i);
ModelEntry entry = PluginRegistry.findEntry(fp.getId());
if (entry == null) continue;
IPluginModelBase[] models = entry.getActiveModels();
for (int j = 0; j < models.length; j++) {
IPluginModelBase m = models[j];
if (fp.getVersion().equals(m.getPluginBase().getVersion())
|| fp.getVersion().equals("0.0.0")) // $NON-NLS-1$
model = m;
}
if (model != null) {
addPluginImports(preservedImports, newImports, model.getPluginBase());
if (model.isFragmentModel()) {
BundleDescription desc = model.getBundleDescription();
if (desc == null) continue;
HostSpecification hostSpec = desc.getHost();
String id = hostSpec.getName();
String version = null;
int match = IMatchRules.NONE;
VersionRange versionRange = hostSpec.getVersionRange();
if (!(versionRange == null || VersionRange.emptyRange.equals(versionRange))) {
version =
versionRange.getMinimum() != null ? versionRange.getMinimum().toString() : null;
match = PluginBase.getMatchRule(versionRange);
}
addNewDependency(id, version, match, preservedImports, newImports);
}
}
}
// preserve imports of features
for (int i = 0; i < fImports.size(); i++) {
IFeatureImport iimport = (IFeatureImport) fImports.get(i);
if (iimport.getType() == IFeatureImport.FEATURE) preservedImports.add(iimport);
}
// removed = old - preserved
Vector removedImports = ((Vector) fImports.clone());
removedImports.removeAll(preservedImports);
// perform remove
fImports = preservedImports;
if (removedImports.size() > 0) {
fireStructureChanged(
(IFeatureImport[]) removedImports.toArray(new IFeatureImport[removedImports.size()]),
IModelChangedEvent.REMOVE);
}
// perform add
if (newImports.size() > 0) {
fImports.addAll(newImports);
fireStructureChanged(
(IFeatureImport[]) newImports.toArray(new IFeatureImport[newImports.size()]),
IModelChangedEvent.INSERT);
}
}
private void addNewDependency(
String id, String version, int match, List preservedImports, List newImports)
throws CoreException {
if (findFeaturePlugin(id, version, match) != null) {
// don't add imports to local plug-ins
return;
}
if (findImport(preservedImports, id, version, match) != null) {
// already seen
return;
}
if (findImport(newImports, id, version, match) != null) {
// already seen
return;
}
IFeatureImport iimport = findImport(fImports, id, version, match);
if (iimport != null) {
// import still valid
preservedImports.add(iimport);
return;
}
// a new one is needed
iimport = getModel().getFactory().createImport();
iimport.setId(id);
iimport.setVersion(version);
iimport.setMatch(match);
((FeatureImport) iimport).setInTheModel(true);
newImports.add(iimport);
}
/**
* Finds a given import in the list
*
* @param imports list of imports
* @param id
* @param version
* @param match
* @return IFeatureImport or null
*/
private IFeatureImport findImport(List imports, String id, String version, int match) {
for (int i = 0; i < imports.size(); i++) {
IFeatureImport iimport = (IFeatureImport) imports.get(i);
if (iimport.getId().equals(id)) {
if (version == null) return iimport;
if (version.equals(iimport.getVersion()) && match == iimport.getMatch()) return iimport;
}
}
return null;
}
private boolean hasRequiredAttributes() {
// Verify that all the required attributes are
// defined.
if (id == null) return false;
if (version == null) return false;
for (int i = 0; i < fChildren.size(); i++) {
IFeatureChild child = (IFeatureChild) fChildren.elementAt(i);
if (child.getId() == null || child.getVersion() == null) return false;
}
for (int i = 0; i < fPlugins.size(); i++) {
IFeaturePlugin plugin = (IFeaturePlugin) fPlugins.elementAt(i);
if (plugin.getId() == null || plugin.getVersion() == null) return false;
}
for (int i = 0; i < fData.size(); i++) {
IFeatureData entry = (IFeatureData) fData.elementAt(i);
if (entry.getId() == null) return false;
}
for (int i = 0; i < fImports.size(); i++) {
IFeatureImport iimport = (IFeatureImport) fImports.elementAt(i);
if (iimport.getId() == null) return false;
}
return true;
}
public void write(String indent, PrintWriter writer) {
if (fCopyright != null) {
writer.println("<!--" + fCopyright + "-->"); // $NON-NLS-1$ //$NON-NLS-2$
}
writer.print(indent + "<feature"); // $NON-NLS-1$
String indent2 = indent + INDENT;
String indenta = indent + INDENT + INDENT;
writeIfDefined(indenta, writer, "id", getId()); // $NON-NLS-1$
writeIfDefined(indenta, writer, "label", getWritableString(getLabel())); // $NON-NLS-1$
writeIfDefined(indenta, writer, "version", getVersion()); // $NON-NLS-1$
writeIfDefined(
indenta,
writer,
"provider-name", //$NON-NLS-1$
getWritableString(fProviderName));
writeIfDefined(
indenta,
writer,
"plugin", //$NON-NLS-1$
getPlugin());
writeIfDefined(indenta, writer, "os", fOs); // $NON-NLS-1$
writeIfDefined(indenta, writer, "ws", fWs); // $NON-NLS-1$
writeIfDefined(indenta, writer, "nl", fNl); // $NON-NLS-1$
writeIfDefined(indenta, writer, "arch", fArch); // $NON-NLS-1$
if (fImageName != null)
writeIfDefined(indenta, writer, "image", getWritableString(fImageName)); // $NON-NLS-1$
if (isPrimary()) {
writer.println();
writer.print(indenta + "primary=\"true\""); // $NON-NLS-1$
}
if (isExclusive()) {
writer.println();
writer.print(indenta + "exclusive=\"true\""); // $NON-NLS-1$
}
writeIfDefined(indenta, writer, "colocation-affinity", fColocationAffinity); // $NON-NLS-1$
writeIfDefined(indenta, writer, "application", fApplication); // $NON-NLS-1$
writer.println(">"); // $NON-NLS-1$
if (fHandler != null) {
fHandler.write(indent2, writer);
}
for (int i = 0; i < 3; i++) {
IFeatureInfo info = fInfos[i];
if (info != null && !info.isEmpty()) info.write(indent2, writer);
}
if (fUrl != null) {
fUrl.write(indent2, writer);
}
for (int i = 0; i < fChildren.size(); i++) {
IFeatureChild child = (IFeatureChild) fChildren.elementAt(i);
writer.println();
child.write(indent2, writer);
}
if (fImports.size() > 0) {
writer.println();
writer.println(indent2 + "<requires>"); // $NON-NLS-1$
for (int i = 0; i < fImports.size(); i++) {
IFeatureImport iimport = (IFeatureImport) fImports.get(i);
iimport.write(indenta, writer);
}
writer.println(indent2 + "</requires>"); // $NON-NLS-1$
}
for (int i = 0; i < fPlugins.size(); i++) {
IFeaturePlugin plugin = (IFeaturePlugin) fPlugins.elementAt(i);
writer.println();
plugin.write(indent2, writer);
}
for (int i = 0; i < fData.size(); i++) {
IFeatureData entry = (IFeatureData) fData.elementAt(i);
writer.println();
entry.write(indent2, writer);
}
writer.println();
writer.println(indent + "</feature>"); // $NON-NLS-1$
}