/** PV is connected. Get meta info, or subscribe right away. */ private void handleConnected(final Channel channel) { try { if (channel.getConnectionState() != Channel.CONNECTED) { return; } } catch (Exception ex) { logger.warn("Exception handling connection state change for " + this.name, ex); return; } if (state == PVConnectionState.Connected) return; state = PVConnectionState.Connected; hostName = channel_ref.getChannel().getHostName(); totalMetaInfo.setHostName(hostName); for (final PVListener listener : listeners) { listener.pvConnected(this); } // If we're "running", we need to get the meta data and // then subscribe. // Otherwise, we're done. if (!running) { connected = true; // meta = null; synchronized (this) { this.notifyAll(); } return; } // else: running, get meta data, then subscribe try { DBRType type = channel.getFieldType(); if (!(plain || type.isSTRING())) { state = PVConnectionState.GettingMetadata; if (type.isDOUBLE() || type.isFLOAT()) type = DBRType.CTRL_DOUBLE; else if (type.isENUM()) type = DBRType.LABELS_ENUM; else if (type.isINT()) type = DBRType.CTRL_INT; else type = DBRType.CTRL_SHORT; channel.get(type, 1, meta_get_listener); return; } } catch (final Exception ex) { logger.error("exception when handleConnect " + name, ex); return; } // Meta info is not requested, not available for this type, // or there was an error in the get call. // So reset it, then just move on to the subscription. // meta = null; subscribe(); }