Package org.apache.geode.distributed

Class LocatorLauncher.Builder

java.lang.Object
org.apache.geode.distributed.LocatorLauncher.Builder
Enclosing class:
LocatorLauncher
public static class LocatorLauncher.Builder extends Object
Following the Builder design pattern, the LocatorLauncher Builder is used to configure and create a properly initialized instance of the LocatorLauncher class for running the Locator and performing other Locator operations.

  • Field Details

  • Constructor Details

    • Builder

      public Builder()
      Default constructor used to create an instance of the Builder class for programmatical access.

    • Builder

      public Builder(String... args)
      Constructor used to create and configure an instance of the Builder class with the specified arguments, often passed from the command-line when launching an instance of this class from the command-line using the Java launcher.
      Parameters:
      args - the array of arguments used to configure the Builder.

  • Method Details

    • parseArguments

      protected void parseArguments(String... args)
      Parses an array of arguments to configure this Builder with the intent of constructing a Locator launcher to invoke a Locator. This method is called to parse the arguments specified by the user on the command-line.
      Parameters:
      args - the array of arguments used to configure this Builder and create an instance of LocatorLauncher.

    • parseCommand

      protected void parseCommand(String... args)
      Iterates the list of arguments in search of the target Locator launcher command.
      Parameters:
      args - an array of arguments from which to search for the Locator launcher command.
      See Also:

    • parseMemberName

      protected void parseMemberName(String... args)
      Iterates the list of arguments in search of the Locator's Geode member name. If the argument does not start with '-' or is not the name of a Locator launcher command, then the value is presumed to be the member name for the Locator in Geode.
      Parameters:
      args - the array of arguments from which to search for the Locator's member name in Geode.
      See Also:

    • getCommand

      public LocatorLauncher.Command getCommand()
      Gets the Locator launcher command used during the invocation of the LocatorLauncher.
      Returns:
      the Locator launcher command used to invoke (run) the LocatorLauncher class.
      See Also:

    • setCommand

      public LocatorLauncher.Builder setCommand(LocatorLauncher.Command command)
      Sets the Locator launcher command used during the invocation of the LocatorLauncher
      Parameters:
      command - the targeted Locator launcher command used during the invocation (run) of LocatorLauncher.
      Returns:
      this Builder instance.
      See Also:

    • getDebug

      public Boolean getDebug()
      Determines whether the new instance of the LocatorLauncher will be set to debug mode.
      Returns:
      a boolean value indicating whether debug mode is enabled or disabled.
      See Also:

    • setDebug

      public LocatorLauncher.Builder setDebug(Boolean debug)
      Sets whether the new instance of the LocatorLauncher will be set to debug mode.
      Parameters:
      debug - a boolean value indicating whether debug mode is to be enabled or disabled.
      Returns:
      this Builder instance.
      See Also:

    • getDeletePidFileOnStop

      public Boolean getDeletePidFileOnStop()
      Determines whether the Geode Locator should delete the pid file when its service stops or when the JVM exits.
      Returns:
      a boolean value indicating if the pid file should be deleted when this service stops or when the JVM exits.
      See Also:

    • setDeletePidFileOnStop

      public LocatorLauncher.Builder setDeletePidFileOnStop(Boolean deletePidFileOnStop)
      Sets whether the Geode Locator should delete the pid file when its service stops or when the JVM exits.
      Parameters:
      deletePidFileOnStop - a boolean value indicating if the pid file should be deleted when this service stops or when the JVM exits.
      Returns:
      this Builder instance.
      See Also:

    • getDistributedSystemProperties

      public Properties getDistributedSystemProperties()
      Gets the Geode Distributed System (cluster) Properties configuration.
      Returns:
      a Properties object containing configuration settings for the Geode Distributed System (cluster).
      See Also:

    • getForce

      public Boolean getForce()
      Gets the boolean value used by the Locator to determine if it should overwrite the PID file if it already exists.
      Returns:
      the boolean value specifying whether or not to overwrite the PID file if it already exists.
      See Also:

    • setForce

      public LocatorLauncher.Builder setForce(Boolean force)
      Sets the boolean value used by the Locator to determine if it should overwrite the PID file if it already exists.
      Parameters:
      force - a boolean value indicating whether to overwrite the PID file when it already exists.
      Returns:
      this Builder instance.
      See Also:

    • getHelp

      public Boolean getHelp()
      Determines whether the new instance of LocatorLauncher will be used to output help information for either a specific command, or for using LocatorLauncher in general.
      Returns:
      a boolean value indicating whether help will be output during the invocation of LocatorLauncher.
      See Also:

    • setHelp

      public LocatorLauncher.Builder setHelp(Boolean help)
      Sets whether the new instance of LocatorLauncher will be used to output help information for either a specific command, or for using LocatorLauncher in general.
      Parameters:
      help - a boolean indicating whether help information is to be displayed during invocation of LocatorLauncher.
      Returns:
      this Builder instance.
      See Also:

    • getBindAddress

      public InetAddress getBindAddress()
      Gets the IP address to which the Locator has bound itself listening for client requests.
      Returns:
      an InetAddress with the IP address or hostname on which the Locator is bound and listening.
      See Also:

    • setBindAddress

      public LocatorLauncher.Builder setBindAddress(String addressString)
      Sets the IP address as an java.net.InetAddress to which the Locator has bound itself listening for client requests.
      Parameters:
      addressString - the InetAddress with the IP address or hostname on which the Locator is bound and listening.
      Returns:
      this Builder instance.
      Throws:
      IllegalArgumentException - wrapping the UnknownHostException if the IP address or hostname for the bind address is unknown.
      See Also:

    • getHostnameForClients

      public String getHostnameForClients()
      Gets the hostname used by clients to lookup the Locator.
      Returns:
      a String indicating the hostname Locator binding used in client lookups.
      See Also:

    • setHostnameForClients

      public LocatorLauncher.Builder setHostnameForClients(String hostnameForClients)
      Sets the hostname used by clients to lookup the Locator.
      Parameters:
      hostnameForClients - a String indicating the hostname Locator binding used in client lookups.
      Returns:
      this Builder instance.
      Throws:
      IllegalArgumentException - if the hostname was not specified (is blank or empty), such as when the --hostname-for-clients command-line option may have been specified without any argument.
      See Also:

    • getMemberName

      public String getMemberName()
      Gets the member name of this Locator in Geode.
      Returns:
      a String indicating the member name of this Locator in Geode.
      See Also:

    • setMemberName

      public LocatorLauncher.Builder setMemberName(String memberName)
      Sets the member name of the Locator in Geode.
      Parameters:
      memberName - a String indicating the member name of this Locator in Geode.
      Returns:
      this Builder instance.
      Throws:
      IllegalArgumentException - if the member name is invalid.
      See Also:

    • getPid

      public Integer getPid()
      Gets the process ID (PID) of the running Locator indicated by the user as an argument to the LocatorLauncher. This PID is used by the Locator launcher to determine the Locator's status, or invoke shutdown on the Locator.
      Returns:
      a user specified Integer value indicating the process ID of the running Locator.
      See Also:

    • setPid

      public LocatorLauncher.Builder setPid(Integer pid)
      Sets the process ID (PID) of the running Locator indicated by the user as an argument to the LocatorLauncher. This PID will be used by the Locator launcher to determine the Locator's status, or invoke shutdown on the Locator.
      Parameters:
      pid - a user specified Integer value indicating the process ID of the running Locator.
      Returns:
      this Builder instance.
      Throws:
      IllegalArgumentException - if the process ID (PID) is not valid (greater than zero if not null).
      See Also:

    • getPort

      public Integer getPort()
      Gets the port number used by the Locator to listen for client requests. If the port was not specified, then the default Locator port (10334) is returned.
      Returns:
      the specified Locator port or the default port if unspecified.
      See Also:

    • setPort

      public LocatorLauncher.Builder setPort(Integer port)
      Sets the port number used by the Locator to listen for client requests. The port number must be between 1 and 65535 inclusive.
      Parameters:
      port - an Integer value indicating the port used by the Locator to listen for client requests.
      Returns:
      this Builder instance.
      Throws:
      IllegalArgumentException - if the port number is not valid.
      See Also:

    • getRedirectOutput

      public Boolean getRedirectOutput()
      Determines whether the new instance of LocatorLauncher will redirect output to system logs when starting a Locator.
      Returns:
      a boolean value indicating if output will be redirected to system logs when starting a Locator
      See Also:

    • setRedirectOutput

      public LocatorLauncher.Builder setRedirectOutput(Boolean redirectOutput)
      Sets whether the new instance of LocatorLauncher will redirect output to system logs when starting a Locator.
      Parameters:
      redirectOutput - a boolean value indicating if output will be redirected to system logs when starting a Locator.
      Returns:
      this Builder instance.
      See Also:

    • getWorkingDirectory

      public String getWorkingDirectory()
      Gets the working directory pathname in which the Locator will be ran. If the directory is unspecified, then working directory defaults to the current directory.
      Returns:
      a String indicating the working directory pathname.
      See Also:

    • setWorkingDirectory

      public LocatorLauncher.Builder setWorkingDirectory(String workingDirectory)
      Sets the working directory in which the Locator will be ran. This also the directory in which all Locator files (such as log and license files) will be written. If the directory is unspecified, then the working directory defaults to the current directory.
      Parameters:
      workingDirectory - a String indicating the pathname of the directory in which the Locator will be ran.
      Returns:
      this Builder instance.
      Throws:
      IllegalArgumentException - wrapping a FileNotFoundException if the working directory pathname cannot be found.
      See Also:

    • set

      public LocatorLauncher.Builder set(String propertyName, String propertyValue)
      Sets a Geode Distributed System Property.
      Parameters:
      propertyName - a String indicating the name of the Geode Distributed System property as described in ConfigurationProperties
      propertyValue - a String value for the Geode Distributed System property.
      Returns:
      this Builder instance.

    • set

      public LocatorLauncher.Builder set(Properties properties)
      add the properties in the Geode Distributed System Property
      Parameters:
      properties - a property object that holds one or more Geode Distributed System properties as described in ConfigurationProperties
      Returns:
      this Builder instance
      Since:
      Geode 1.12

    • validate

      protected void validate()
      Validates the configuration settings and properties of this Builder, ensuring that all invariants have been met. Currently, the only invariant constraining the Builder is that the user must specify the member name for the Locator in the Geode distributed system as a command-line argument, or by setting the memberName property programmatically using the corresponding setter method. If the member name is not given, then the user must have specified the pathname to the gemfire.properties file before validate is called. It is then assumed, but not further validated, that the user has specified the Locator's member name in the properties file.
      Throws:
      IllegalStateException - if the Builder is not properly configured.

    • validateOnStart

      protected void validateOnStart()
      Validates the arguments passed to the Builder when the 'start' command has been issued.
      See Also:

    • validateOnStatus

      protected void validateOnStatus()
      Validates the arguments passed to the Builder when the 'status' command has been issued.
      See Also:

    • validateOnStop

      protected void validateOnStop()
      Validates the arguments passed to the Builder when the 'stop' command has been issued.
      See Also:

    • build

      public LocatorLauncher build()
      Validates the Builder configuration settings and then constructs an instance of the LocatorLauncher class to invoke operations on a Geode Locator.
      Returns:
      a newly constructed instance of LocatorLauncher configured with this Builder.
      See Also: