@Override
public XContentBuilder toXContent(XContentBuilder builder, Params params) throws IOException {
builder.startObject(Fields.OS);
builder.field(Fields.TIMESTAMP, getTimestamp());
cpu.toXContent(builder, params);
mem.toXContent(builder, params);
swap.toXContent(builder, params);
if (cgroup != null) {
cgroup.toXContent(builder, params);
}
builder.endObject();
return builder;
}
