/**
* Indices deleted.
*
* @return the list
*/
public List<String> indicesDeleted() {
if (previousState == null) {
return ImmutableList.of();
}
if (!metaDataChanged()) {
return ImmutableList.of();
}
List<String> deleted = null;
for (String index : previousState.metaData().indices().keySet()) {
if (!state.metaData().hasIndex(index)) {
if (deleted == null) {
deleted = Lists.newArrayList();
}
deleted.add(index);
}
}
return deleted == null ? ImmutableList.<String> of() : deleted;
}
/**
* Indices created.
*
* @return the list
*/
public List<String> indicesCreated() {
if (previousState == null) {
return Lists.newArrayList(state.metaData().indices().keySet());
}
if (!metaDataChanged()) {
return ImmutableList.of();
}
List<String> created = null;
for (String index : state.metaData().indices().keySet()) {
if (!previousState.metaData().hasIndex(index)) {
if (created == null) {
created = Lists.newArrayList();
}
created.add(index);
}
}
return created == null ? ImmutableList.<String> of() : created;
}
/**
* Index meta data changed.
*
* @param current the current
* @return true, if successful
*/
public boolean indexMetaDataChanged(IndexMetaData current) {
MetaData previousMetaData = previousState.metaData();
if (previousMetaData == null) {
return true;
}
IndexMetaData previousIndexMetaData = previousMetaData.index(current.index());
if (previousIndexMetaData == current) {
return false;
}
return true;
}
/**
* Meta data changed.
*
* @return true, if successful
*/
public boolean metaDataChanged() {
return state.metaData() != previousState.metaData();
}