Package org.apache.flink.client.deployment.application

Class FromClasspathEntryClassInformationProvider

java.lang.Object
org.apache.flink.client.deployment.application.FromClasspathEntryClassInformationProvider
All Implemented Interfaces:
EntryClassInformationProvider
public class FromClasspathEntryClassInformationProvider extends Object implements EntryClassInformationProvider
FromClasspathEntryClassInformationProvider assumes the passed job class being available on some classpath.

  • Method Details

    • create

      public static FromClasspathEntryClassInformationProvider create(String jobClassName, Iterable<URL> classpath) throws IOException, org.apache.flink.util.FlinkException
      Creates a FromClasspathEntryClassInformationProvider based on the passed job class and classpath.
      Parameters:
      jobClassName - The job's class name.
      classpath - The classpath the job class should be part of.
      Returns:
      The FromClasspathEntryClassInformationProvider instances collecting the necessary information.
      Throws:
      IOException - If some Jar listed on the classpath wasn't accessible.
      org.apache.flink.util.FlinkException - If the passed job class is not present on the passed classpath.

    • createFromClasspath

      public static FromClasspathEntryClassInformationProvider createFromClasspath(Iterable<URL> classpath) throws IOException, org.apache.flink.util.FlinkException
      Creates a FromClasspathEntryClassInformationProvider looking for the entry class providing the main method on the passed classpath.
      Parameters:
      classpath - The classpath the job class is expected to be part of.
      Returns:
      The FromClasspathEntryClassInformationProvider providing the job class found on the passed classpath.
      Throws:
      IOException - If some Jar listed on the classpath wasn't accessible.
      org.apache.flink.util.FlinkException - Either no or too many main methods were found on the classpath.

    • createFromSystemClasspath

      public static FromClasspathEntryClassInformationProvider createFromSystemClasspath() throws IOException, org.apache.flink.util.FlinkException
      Creates a FromClasspathEntryClassInformationProvider looking for the entry class providing the main method on the system classpath.
      Returns:
      The FromClasspathEntryClassInformationProvider providing the job class found on the system classpath.
      Throws:
      IOException - If some Jar listed on the system classpath wasn't accessible.
      org.apache.flink.util.FlinkException - Either no or too many main methods were found on the system classpath.

    • createWithJobClassAssumingOnSystemClasspath

      public static FromClasspathEntryClassInformationProvider createWithJobClassAssumingOnSystemClasspath(String jobClassName)
      Creates a FromClasspathEntryClassInformationProvider assuming that the passed job class is available on the system classpath.
      Parameters:
      jobClassName - The job class name working as the entry point.
      Returns:
      The FromClasspathEntryClassInformationProvider providing the job class found.

    • getJarFile

      public Optional<File> getJarFile()
      Always returns an empty Optional because this implementation relies on the JAR archive being available on either the user or the system classpath.
      Specified by:
      getJarFile in interface EntryClassInformationProvider
      Returns:
      An empty Optional.

    • getJobClassName

      public Optional<String> getJobClassName()
      Returns the job class name if it could be derived from the specified classpath or was explicitly specified.
      Specified by:
      getJobClassName in interface EntryClassInformationProvider
      Returns:
      The job class name or an empty Optional if none was specified and it couldn't be derived from the classpath.