private URL findResource(String resource) {
ModuleWiring searchWiring = generation.getRevision().getWiring();
if (searchWiring != null) {
if ((generation.getRevision().getTypes() & BundleRevision.TYPE_FRAGMENT) != 0) {
List<ModuleWire> hostWires =
searchWiring.getRequiredModuleWires(HostNamespace.HOST_NAMESPACE);
searchWiring = null;
Long lowestHost = Long.MAX_VALUE;
if (hostWires != null) {
// search for the host with the highest ID
for (ModuleWire hostWire : hostWires) {
Long hostID = hostWire.getProvider().getRevisions().getModule().getId();
if (hostID.compareTo(lowestHost) <= 0) {
lowestHost = hostID;
searchWiring = hostWire.getProviderWiring();
}
}
}
}
}
if (searchWiring != null) {
int lastSlash = resource.lastIndexOf('/');
String path = lastSlash > 0 ? resource.substring(0, lastSlash) : "/"; // $NON-NLS-1$
String fileName = lastSlash != -1 ? resource.substring(lastSlash + 1) : resource;
List<URL> result = searchWiring.findEntries(path, fileName, 0);
return (result == null || result.isEmpty()) ? null : result.get(0);
}
// search the raw bundle file for the generation
return generation.getEntry(resource);
}
/*
* Maps an already mapped library name to additional library file extensions.
* This is needed on platforms like AIX where .a and .so can be used as library file
* extensions, but System.mapLibraryName only returns a single string.
*/
public String[] mapLibraryNames(String mappedLibName) {
int extIndex = mappedLibName.lastIndexOf('.');
List<String> LIB_EXTENSIONS =
generation.getBundleInfo().getStorage().getConfiguration().LIB_EXTENSIONS;
if (LIB_EXTENSIONS.isEmpty() || extIndex < 0) return EMPTY_STRINGS;
String libNameBase = mappedLibName.substring(0, extIndex);
String[] results = new String[LIB_EXTENSIONS.size()];
for (int i = 0; i < results.length; i++) results[i] = libNameBase + LIB_EXTENSIONS.get(i);
return results;
}
private List<String> getNativePaths() {
ModuleRevision revision = generation.getRevision();
ModuleWiring wiring = revision.getWiring();
if (wiring == null) {
// unresolved? should not be possible
return Collections.emptyList();
}
if ((revision.getTypes() & BundleRevision.TYPE_FRAGMENT) != 0) {
List<ModuleWire> hosts = wiring.getRequiredModuleWires(HostNamespace.HOST_NAMESPACE);
if (hosts == null) {
// unresolved or invalid? should not be possible
return Collections.emptyList();
}
if (!hosts.isEmpty()) {
// just use the first host wiring
wiring = hosts.get(0).getProviderWiring();
}
}
List<ModuleWire> nativeCode = wiring.getRequiredModuleWires(NativeNamespace.NATIVE_NAMESPACE);
if (nativeCode.isEmpty()) {
return Collections.emptyList();
}
// just taking the first paths for the revision, we sorted correctly when transforming to the
// requirement
for (ModuleWire moduleWire : nativeCode) {
if (moduleWire.getRequirement().getRevision().equals(revision)) {
@SuppressWarnings("unchecked")
List<String> result =
(List<String>)
nativeCode
.get(0)
.getRequirement()
.getAttributes()
.get(REQUIREMENT_NATIVE_PATHS_ATTRIBUTE);
if (result != null) return result;
// this must be a multi-clause Bundle-NativeCode header, need to check for the correct one
// in the index
try {
FilterImpl filter =
FilterImpl.newInstance(
moduleWire
.getRequirement()
.getDirectives()
.get(NativeNamespace.REQUIREMENT_FILTER_DIRECTIVE));
int index = -1;
Map<String, Object> capabilityAttrs = moduleWire.getCapability().getAttributes();
for (FilterImpl child : filter.getChildren()) {
index++;
if (child.matches(capabilityAttrs)) {
break;
}
}
if (index != -1) {
@SuppressWarnings("unchecked")
List<String> indexResult =
(List<String>)
nativeCode
.get(0)
.getRequirement()
.getAttributes()
.get(REQUIREMENT_NATIVE_PATHS_ATTRIBUTE + '.' + index);
if (indexResult != null) return indexResult;
}
} catch (InvalidSyntaxException e) {
throw new RuntimeException(e);
}
}
}
return Collections.emptyList();
}