public static void toXContent(
MetaData metaData, XContentBuilder builder, ToXContent.Params params) throws IOException {
XContentContext context = XContentContext.valueOf(params.param(CONTEXT_MODE_PARAM, "API"));
builder.startObject("meta-data");
builder.field("version", metaData.version());
builder.field("cluster_uuid", metaData.clusterUUID);
if (!metaData.persistentSettings().getAsMap().isEmpty()) {
builder.startObject("settings");
for (Map.Entry<String, String> entry :
metaData.persistentSettings().getAsMap().entrySet()) {
builder.field(entry.getKey(), entry.getValue());
}
builder.endObject();
}
if (context == XContentContext.API && !metaData.transientSettings().getAsMap().isEmpty()) {
builder.startObject("transient_settings");
for (Map.Entry<String, String> entry : metaData.transientSettings().getAsMap().entrySet()) {
builder.field(entry.getKey(), entry.getValue());
}
builder.endObject();
}
builder.startObject("templates");
for (ObjectCursor<IndexTemplateMetaData> cursor : metaData.templates().values()) {
IndexTemplateMetaData.Builder.toXContent(cursor.value, builder, params);
}
builder.endObject();
if (context == XContentContext.API && !metaData.indices().isEmpty()) {
builder.startObject("indices");
for (IndexMetaData indexMetaData : metaData) {
IndexMetaData.Builder.toXContent(indexMetaData, builder, params);
}
builder.endObject();
}
for (ObjectObjectCursor<String, Custom> cursor : metaData.customs()) {
Custom proto = lookupPrototypeSafe(cursor.key);
if (proto.context().contains(context)) {
builder.startObject(cursor.key);
cursor.value.toXContent(builder, params);
builder.endObject();
}
}
builder.endObject();
}
@Override
public MetaData readFrom(StreamInput in) throws IOException {
Builder builder = new Builder();
builder.version = in.readLong();
builder.clusterUUID = in.readString();
builder.transientSettings(readSettingsFromStream(in));
builder.persistentSettings(readSettingsFromStream(in));
int size = in.readVInt();
for (int i = 0; i < size; i++) {
builder.put(IndexMetaData.Builder.readFrom(in), false);
}
size = in.readVInt();
for (int i = 0; i < size; i++) {
builder.put(IndexTemplateMetaData.Builder.readFrom(in));
}
int customSize = in.readVInt();
for (int i = 0; i < customSize; i++) {
String type = in.readString();
Custom customIndexMetaData = lookupPrototypeSafe(type).readFrom(in);
builder.putCustom(type, customIndexMetaData);
}
return builder.build();
}
public Builder put(IndexTemplateMetaData.Builder template) {
return put(template.build());
}
public static MetaData fromXContent(XContentParser parser) throws IOException {
Builder builder = new Builder();
// we might get here after the meta-data element, or on a fresh parser
XContentParser.Token token = parser.currentToken();
String currentFieldName = parser.currentName();
if (!"meta-data".equals(currentFieldName)) {
token = parser.nextToken();
if (token == XContentParser.Token.START_OBJECT) {
// move to the field name (meta-data)
token = parser.nextToken();
if (token != XContentParser.Token.FIELD_NAME) {
throw new IllegalArgumentException("Expected a field name but got " + token);
}
// move to the next object
token = parser.nextToken();
}
currentFieldName = parser.currentName();
}
if (!"meta-data".equals(parser.currentName())) {
throw new IllegalArgumentException(
"Expected [meta-data] as a field name but got " + currentFieldName);
}
if (token != XContentParser.Token.START_OBJECT) {
throw new IllegalArgumentException("Expected a START_OBJECT but got " + token);
}
while ((token = parser.nextToken()) != XContentParser.Token.END_OBJECT) {
if (token == XContentParser.Token.FIELD_NAME) {
currentFieldName = parser.currentName();
} else if (token == XContentParser.Token.START_OBJECT) {
if ("settings".equals(currentFieldName)) {
builder.persistentSettings(
Settings.settingsBuilder()
.put(SettingsLoader.Helper.loadNestedFromMap(parser.mapOrdered()))
.build());
} else if ("indices".equals(currentFieldName)) {
while ((token = parser.nextToken()) != XContentParser.Token.END_OBJECT) {
builder.put(IndexMetaData.Builder.fromXContent(parser), false);
}
} else if ("templates".equals(currentFieldName)) {
while ((token = parser.nextToken()) != XContentParser.Token.END_OBJECT) {
builder.put(IndexTemplateMetaData.Builder.fromXContent(parser, parser.currentName()));
}
} else {
// check if its a custom index metadata
Custom proto = lookupPrototype(currentFieldName);
if (proto == null) {
// TODO warn
parser.skipChildren();
} else {
Custom custom = proto.fromXContent(parser);
builder.putCustom(custom.type(), custom);
}
}
} else if (token.isValue()) {
if ("version".equals(currentFieldName)) {
builder.version = parser.longValue();
} else if ("cluster_uuid".equals(currentFieldName) || "uuid".equals(currentFieldName)) {
builder.clusterUUID = parser.text();
} else {
throw new IllegalArgumentException("Unexpected field [" + currentFieldName + "]");
}
} else {
throw new IllegalArgumentException("Unexpected token " + token);
}
}
return builder.build();
}