public static GenerationDependencies fromXml(Element root) {
String version = GenerationRootDependencies.getValue(root, ATTR_VERSION);
if (version == null || !version.equals(Integer.toString(DEPENDENCIES_VERSION))) {
/* regenerate all */
return null;
}
Map<String, String> externalHashes = new HashMap<String, String>();
for (Element e : ((List<Element>) root.getChildren(NODE_MODEL))) {
String modelReference = GenerationRootDependencies.getValue(e, ATTR_MODEL_ID);
String rootHash = GenerationRootDependencies.getValue(e, ATTR_HASH);
if (modelReference != null) {
externalHashes.put(modelReference, rootHash);
}
}
List<GenerationRootDependencies> data = new ArrayList<GenerationRootDependencies>();
for (Element e : ((List<Element>) root.getChildren(NODE_COMMON))) {
data.add(GenerationRootDependencies.fromXml(e, true));
}
for (Element e : ((List<Element>) root.getChildren(NODE_ROOT))) {
data.add(GenerationRootDependencies.fromXml(e, false));
}
String modelHash = GenerationRootDependencies.getValue(root, ATTR_MODEL_HASH);
String paramsHash = GenerationRootDependencies.getValue(root, ATTR_PARAMS_HASH);
if (externalHashes.isEmpty() && data.isEmpty()) {
return new GenerationDependencies(modelHash, paramsHash);
}
return new GenerationDependencies(
data,
modelHash,
paramsHash,
externalHashes,
Collections.<GenerationRootDependencies>emptyList(),
0,
0);
}
