@Override
public void handleRequest(
final RestRequest request, final RestChannel channel, final NodeClient client)
throws Exception {
String[] indices = Strings.splitStringByCommaToArray(request.param("index"));
String alias = request.param("name");
Map<String, Object> filter = null;
String routing = null;
String indexRouting = null;
String searchRouting = null;
if (request.hasContent()) {
try (XContentParser parser =
XContentFactory.xContent(request.content()).createParser(request.content())) {
XContentParser.Token token = parser.nextToken();
if (token == null) {
throw new IllegalArgumentException("No index alias is specified");
}
String currentFieldName = null;
while ((token = parser.nextToken()) != null) {
if (token == XContentParser.Token.FIELD_NAME) {
currentFieldName = parser.currentName();
} else if (token.isValue()) {
if ("index".equals(currentFieldName)) {
indices = Strings.splitStringByCommaToArray(parser.text());
} else if ("alias".equals(currentFieldName)) {
alias = parser.text();
} else if ("routing".equals(currentFieldName)) {
routing = parser.textOrNull();
} else if ("indexRouting".equals(currentFieldName)
|| "index-routing".equals(currentFieldName)
|| "index_routing".equals(currentFieldName)) {
indexRouting = parser.textOrNull();
} else if ("searchRouting".equals(currentFieldName)
|| "search-routing".equals(currentFieldName)
|| "search_routing".equals(currentFieldName)) {
searchRouting = parser.textOrNull();
}
} else if (token == XContentParser.Token.START_OBJECT) {
if ("filter".equals(currentFieldName)) {
filter = parser.mapOrdered();
}
}
}
}
}
IndicesAliasesRequest indicesAliasesRequest = new IndicesAliasesRequest();
indicesAliasesRequest.timeout(request.paramAsTime("timeout", indicesAliasesRequest.timeout()));
indicesAliasesRequest.masterNodeTimeout(
request.paramAsTime("master_timeout", indicesAliasesRequest.masterNodeTimeout()));
IndicesAliasesRequest.AliasActions aliasAction =
AliasActions.add().indices(indices).alias(alias);
if (routing != null) {
aliasAction.routing(routing);
}
if (searchRouting != null) {
aliasAction.searchRouting(searchRouting);
}
if (indexRouting != null) {
aliasAction.indexRouting(indexRouting);
}
if (filter != null) {
aliasAction.filter(filter);
}
indicesAliasesRequest.addAliasAction(aliasAction);
client
.admin()
.indices()
.aliases(indicesAliasesRequest, new AcknowledgedRestListener<>(channel));
}
@Override
public void handleRequest(final RestRequest request, final RestChannel channel) {
IndicesAliasesRequest indicesAliasesRequest = new IndicesAliasesRequest();
indicesAliasesRequest.listenerThreaded(false);
indicesAliasesRequest.masterNodeTimeout(
request.paramAsTime("master_timeout", indicesAliasesRequest.masterNodeTimeout()));
XContentParser parser = null;
try {
// {
// actions : [
// { add : { index : "test1", alias : "alias1", filter : {"user" : "kimchy"} } }
// { remove : { index : "test1", alias : "alias1" } }
// ]
// }
indicesAliasesRequest.timeout(
request.paramAsTime("timeout", indicesAliasesRequest.timeout()));
parser = XContentFactory.xContent(request.content()).createParser(request.content());
XContentParser.Token token = parser.nextToken();
if (token == null) {
throw new ElasticsearchIllegalArgumentException("No action is specified");
}
while ((token = parser.nextToken()) != XContentParser.Token.END_OBJECT) {
if (token == XContentParser.Token.START_ARRAY) {
while ((token = parser.nextToken()) != XContentParser.Token.END_ARRAY) {
if (token == XContentParser.Token.FIELD_NAME) {
String action = parser.currentName();
AliasAction.Type type;
if ("add".equals(action)) {
type = AliasAction.Type.ADD;
} else if ("remove".equals(action)) {
type = AliasAction.Type.REMOVE;
} else {
throw new ElasticsearchIllegalArgumentException(
"Alias action [" + action + "] not supported");
}
String index = null;
String alias = null;
Map<String, Object> filter = null;
String routing = null;
boolean routingSet = false;
String indexRouting = null;
boolean indexRoutingSet = false;
String searchRouting = null;
boolean searchRoutingSet = false;
String currentFieldName = null;
while ((token = parser.nextToken()) != XContentParser.Token.END_OBJECT) {
if (token == XContentParser.Token.FIELD_NAME) {
currentFieldName = parser.currentName();
} else if (token == XContentParser.Token.VALUE_STRING) {
if ("index".equals(currentFieldName)) {
index = parser.text();
} else if ("alias".equals(currentFieldName)) {
alias = parser.text();
} else if ("routing".equals(currentFieldName)) {
routing = parser.textOrNull();
routingSet = true;
} else if ("indexRouting".equals(currentFieldName)
|| "index-routing".equals(currentFieldName)
|| "index_routing".equals(currentFieldName)) {
indexRouting = parser.textOrNull();
indexRoutingSet = true;
} else if ("searchRouting".equals(currentFieldName)
|| "search-routing".equals(currentFieldName)
|| "search_routing".equals(currentFieldName)) {
searchRouting = parser.textOrNull();
searchRoutingSet = true;
}
} else if (token == XContentParser.Token.START_OBJECT) {
if ("filter".equals(currentFieldName)) {
filter = parser.mapOrdered();
}
}
}
if (type == AliasAction.Type.ADD) {
AliasAction aliasAction = newAddAliasAction(index, alias).filter(filter);
if (routingSet) {
aliasAction.routing(routing);
}
if (indexRoutingSet) {
aliasAction.indexRouting(indexRouting);
}
if (searchRoutingSet) {
aliasAction.searchRouting(searchRouting);
}
indicesAliasesRequest.addAliasAction(aliasAction);
} else if (type == AliasAction.Type.REMOVE) {
indicesAliasesRequest.removeAlias(index, alias);
}
}
}
}
}
} catch (Exception e) {
try {
channel.sendResponse(new XContentThrowableRestResponse(request, e));
} catch (IOException e1) {
logger.warn("Failed to send response", e1);
}
return;
} finally {
parser.close();
}
client
.admin()
.indices()
.aliases(
indicesAliasesRequest,
new AcknowledgedRestResponseActionListener<IndicesAliasesResponse>(
request, channel, logger));
}
