49 lines
1.5 KiB
C#
49 lines
1.5 KiB
C#
using BCG;
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using bts;
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using System;
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namespace BCG {
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// this is a stream so we can run it from the DSQA (since dsqa can only load streams)
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[DataStreamUserRespresentation("remoteQuery")]
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public class RemoteQueryStream : ViewStream {
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private readonly string _name, _stream_exp;
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private PublisherCore _publisher_core = new PublisherCore();
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private ViewStream _source_str;
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public RemoteQueryStream(params string[] lines) {
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_stream_exp = get_expression(lines);
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_name = Guid.NewGuid().ToString();
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_name = $"remotereq_{DateTimeOffset.UtcNow.ToUnixTimeMilliseconds().ToString()}";
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//_name.Replace("-", "_");
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}
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protected override void myOnFirstSubscriber() {
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RemoteRequest rem_req = new RemoteRequest(_stream_exp, _name);
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byte[] rem_req_bytes = rem_req.serialize();
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_publisher_core.publish("System", "RemoteRequest", rem_req_bytes);
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_source_str = new TableStream(_name);
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_source_str.onChange += _handle_data;
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}
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protected override void myOnLastSubscriber() {
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//maybe there should be a way to turn remote requests off ?
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_source_str.onChange -= _handle_data;
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}
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static string get_expression(params string[] lines) {
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for (int i = 0; i < lines.Length; i++) {
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// unescape quotes
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lines[i] = lines[i].Replace("\\\"", "\"");
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}
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return string.Join("\n", lines);
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}
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private void _handle_data(object o) {
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myFireEvent(o);
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}
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}
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}
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