com.palantir.giraffe

Class SystemPreconditions

java.lang.Object

com.palantir.giraffe.SystemPreconditions

public final class SystemPreconditions
extends Object

Simple static methods to verify the state of file and execution systems taken as arguments.

When checking hosts, if either object does not provide a method to get the host directly, it is extracted from the object's URI. For file systems, this is the URI of the current default directory.

Method Summary

Modifier and Type	Method and Description
static void	checkOpen(ExecutionSystem es) Ensures that the given execution system is open.
static void	checkOpen(FileSystem fs) Ensures that the given file system is open.
static void	checkSameHost(FileSystem fs, ExecutionSystem es) Ensures that the given file system and execution system refer to the same host.
static void	checkSameHost(Host host, ExecutionSystem es) Ensures that the given host is the same as the host of the given execution system.
static void	checkSameHost(Host host, FileSystem fs) Ensures that the given host is the same as the host of the given file system.
static void	checkSameHost(Path path, ExecutionSystem es) Ensures that the given path and execution system refer to the same host.
static void	checkSameHost(Path p1, Path p2) Ensures that two paths refer to the same host.

Methods inherited from class java.lang.Object

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

Method Detail

checkSameHost

public static void checkSameHost(Path path,
                                 ExecutionSystem es)

Ensures that the given path and execution system refer to the same host.

Throws:

IllegalArgumentException - if the hosts are not equal

checkSameHost

public static void checkSameHost(FileSystem fs,
                                 ExecutionSystem es)

Ensures that the given file system and execution system refer to the same host.

Throws:

IllegalArgumentException - if the hosts are not equal

checkSameHost

public static void checkSameHost(Path p1,
                                 Path p2)

Ensures that two paths refer to the same host.

Throws:

IllegalArgumentException - if the hosts are not equal

checkSameHost

public static void checkSameHost(Host host,
                                 FileSystem fs)

Ensures that the given host is the same as the host of the given file system.

Throws:

IllegalArgumentException - if the hosts are not equal

checkSameHost

public static void checkSameHost(Host host,
                                 ExecutionSystem es)

Ensures that the given host is the same as the host of the given execution system.

Throws:

IllegalArgumentException - if the hosts are not equal

checkOpen

public static void checkOpen(FileSystem fs)

Ensures that the given file system is open.

Throws:

IllegalArgumentException - if the file system is closed

checkOpen

public static void checkOpen(ExecutionSystem es)

Ensures that the given execution system is open.

Throws:

IllegalArgumentException - if the execution system is closed