@Override
public void setSpeedAuthority(int blockId, int speed, int authority) {
if (plcProgramA != null && plcProgramB != null) {
if (blockId <= endBlock && blockId >= startBlock) {
if (!(plcProgramA.stop(section.get(blockId - startBlock))
&& plcProgramB.stop(section.get(blockId - startBlock)))) {
section.get(blockId - startBlock).setSpeedAuthority(speed, authority);
if (section.get(blockId - startBlock).getMasterSwitch()
|| section.get(blockId - startBlock).hasRRCrossing()) {
if (!(plcProgramA.slowDown(section.get(blockId - startBlock))
&& plcProgramB.slowDown(section.get(blockId - startBlock)))) {
section.get(blockId - startBlock).setLight(1);
} else {
section.get(blockId - startBlock).setLight(2);
}
}
} else {
System.out.println("SAFETY CRITICAL: TRAIN MUST STOP");
if (section.get(blockId - startBlock).getMasterSwitch()
|| section.get(blockId - startBlock).hasRRCrossing()) {
section.get(blockId - startBlock).setLight(3);
}
section.get(blockId - startBlock).setSpeedAuthority(0, 0);
}
} else {
System.err.println("ERROR: BLOCKID NOT CONTAINED WITHIN THIS CONTROLLER");
}
} else {
System.err.println("ERROR: LOAD PLC PROGRAM");
}
}
@Override
public boolean markBlockForMaintanence(int blockId, boolean needsRepair) {
if (blockId >= this.startBlock
&& blockId <= this.endBlock
&& this.startBlock != this.overlapBlock
&& plcProgramA != null
&& plcProgramB != null
&& plcProgramA.maintenance(section.get(blockId - this.startBlock))
&& plcProgramB.maintenance(section.get(blockId - this.startBlock))) {
section.get(blockId - startBlock).setBlockOccupation(needsRepair);
;
if (needsRepair) {
this.ctc.setBlockOccupied(this.line, blockId);
} else {
this.ctc.setBlockUnoccupied(this.line, blockId);
}
return true;
}
return false;
}
@Override
public boolean engageRRCrossing(int blockId, boolean engagement) {
if (blockId >= startBlock
&& blockId <= endBlock
&& section.get(blockId - this.startBlock).hasRRCrossing()
&& plcProgramA != null
&& plcProgramB != null
&& plcProgramA.engageRRCrossing(section.get(blockId - startBlock))
&& plcProgramB.engageRRCrossing(section.get(blockId - startBlock))) {
section.get(blockId - startBlock).setRRCrossingEngagement(engagement);
return true;
} else {
System.err.println(
"ERROR: "
+ this.line
+ " line TC#"
+ this.controllerId
+ "cannot engage crossing on block #"
+ blockId);
return false;
}
}
/** checks PLC logic and current switch engagement, switches engagement if different */
@Override
public boolean engageSwitch(String switchName, boolean engagement) {
if (this.switchList.containsKey(switchName)) {
Iterator<Block> switchBlockIterator = this.switchList.get(switchName).iterator();
while (switchBlockIterator.hasNext()) {
Block currBlock = switchBlockIterator.next();
if (currBlock.getMasterSwitch()) {
if (currBlock.isSwitchEngaged() != engagement
&& plcProgramA != null
&& plcProgramB != null
&& plcProgramA.engageSwitch(currBlock)
&& plcProgramB.engageSwitch(currBlock)) {
currBlock.setSwitchEngagement();
this.ctc.switchChanged(switchName, currBlock.getBlockNumber(), engagement);
return true;
}
}
}
return false;
} else {
System.err.println("ERROR: THIS TC DOES NOT CONTAIN SWITCH " + switchName);
return false;
}
}