// TODO: This can be moved to IndexNameExpressionResolver too, but this means that we will support
// wildcards and other expressions
// in the index,bulk,update and delete apis.
public String resolveIndexRouting(
@Nullable String parent, @Nullable String routing, String aliasOrIndex) {
if (aliasOrIndex == null) {
if (routing == null) {
return parent;
}
return routing;
}
AliasOrIndex result = getAliasAndIndexLookup().get(aliasOrIndex);
if (result == null || result.isAlias() == false) {
if (routing == null) {
return parent;
}
return routing;
}
AliasOrIndex.Alias alias = (AliasOrIndex.Alias) result;
if (result.getIndices().size() > 1) {
String[] indexNames = new String[result.getIndices().size()];
int i = 0;
for (IndexMetaData indexMetaData : result.getIndices()) {
indexNames[i++] = indexMetaData.getIndex().getName();
}
throw new IllegalArgumentException(
"Alias ["
+ aliasOrIndex
+ "] has more than one index associated with it ["
+ Arrays.toString(indexNames)
+ "], can't execute a single index op");
}
AliasMetaData aliasMd = alias.getFirstAliasMetaData();
if (aliasMd.indexRouting() != null) {
if (aliasMd.indexRouting().indexOf(',') != -1) {
throw new IllegalArgumentException(
"index/alias ["
+ aliasOrIndex
+ "] provided with routing value ["
+ aliasMd.getIndexRouting()
+ "] that resolved to several routing values, rejecting operation");
}
if (routing != null) {
if (!routing.equals(aliasMd.indexRouting())) {
throw new IllegalArgumentException(
"Alias ["
+ aliasOrIndex
+ "] has index routing associated with it ["
+ aliasMd.indexRouting()
+ "], and was provided with routing value ["
+ routing
+ "], rejecting operation");
}
}
// Alias routing overrides the parent routing (if any).
return aliasMd.indexRouting();
}
if (routing == null) {
return parent;
}
return routing;
}
