org.opentripplanner.standalone

Class OTPMain

java.lang.Object

org.opentripplanner.standalone.OTPMain

public class OTPMain
extends Object

This is the main entry point to OpenTripPlanner. It allows both building graphs and starting up an OTP server depending on command line options. OTPMain is a concrete class making it possible to construct one with custom CommandLineParameters and use its graph builder construction method from web services or scripts, not just from the static main function below. TODO still it seems fairly natural for all of these methods to be static.

Field Summary

Fields

Modifier and Type	Field and Description
GraphService	graphService
OTPServer	otpServer

Constructor Summary

Constructors

Constructor and Description
OTPMain(CommandLineParameters params)

Method Summary

Modifier and Type	Method and Description
static com.fasterxml.jackson.databind.JsonNode	loadJson(File file) Open and parse the JSON file at the given path into a Jackson JSON tree.
static void	main(String[] args) ENTRY POINT: This is the main method that is called when running otp.jar from the command line.
void	makeGraphService() Create a cached GraphService that will be used by all OTP components to resolve router IDs to Graphs.
void	run() Making OTPMain a concrete class and placing this logic an instance method instead of embedding it in the static main method makes it possible to build graphs from web services or scripts, not just from the command line.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

otpServer

public OTPServer otpServer

graphService

public GraphService graphService

Constructor Detail

OTPMain

public OTPMain(CommandLineParameters params)

Method Detail

main

public static void main(String[] args)

ENTRY POINT: This is the main method that is called when running otp.jar from the command line.

run

public void run()

Making OTPMain a concrete class and placing this logic an instance method instead of embedding it in the static main method makes it possible to build graphs from web services or scripts, not just from the command line.

makeGraphService

public void makeGraphService()

Create a cached GraphService that will be used by all OTP components to resolve router IDs to Graphs. If a graph is supplied (graph parameter is not null) then that graph is also registered. TODO move into OTPServer and/or GraphService itself, eliminate FileFactory and put basePath in GraphService

loadJson

public static com.fasterxml.jackson.databind.JsonNode loadJson(File file)

Open and parse the JSON file at the given path into a Jackson JSON tree. Comments and unquoted keys are allowed. Returns null if the file does not exist, Returns null if the file contains syntax errors or cannot be parsed for some other reason. We do not require any JSON config files to be present because that would get in the way of the simplest rapid deployment workflow. Therefore we return an empty JSON node when the file is missing, causing us to fall back on all the default values as if there was a JSON file present with no fields defined.