Package de.softwareforge.testing.postgres.embedded

Interface NativeBinaryLocator

All Known Implementing Classes:

ZonkyIOPostgresLocator

public interface NativeBinaryLocator

Locates a native binary on the Filesystem. If necessary, it should download the binary first from the network.

Implementations of this class must implement Object.hashCode() and Object.equals(Object) and should implement Object.toString().

Since:

3.0

Field Summary

Fields

Modifier and Type	Field	Description
static final String	INSTALL_DIRECTORY_PREFIX

Method Summary

Modifier and Type	Method	Description
default String	getIdentifier()	Returns a string identifier that represents the archive returned.
InputStream	getInputStream()	Returns an input stream from which the contents of the binary archive can be read.

Field Details

INSTALL_DIRECTORY_PREFIX

static final String INSTALL_DIRECTORY_PREFIX

See Also:

• Constant Field Values

Method Details

getInputStream

@Nullable
InputStream getInputStream()
                    throws IOException

Returns an input stream from which the contents of the binary archive can be read.

Returns:

An input stream. May return null.

Throws:

IOException - If the archive could not be located or read.

getIdentifier

@Nonnull
default String getIdentifier()
                      throws IOException

Returns a string identifier that represents the archive returned. This identifier should be stable (same value for the same archive), even across multiple JVM invocations. The value must only contain characters that can be used as a legal file name.

The default implementation needs to read the full archive contents and is relatively slow. Implementations of this interface can override this method to provide a faster way to create a stable identifier based on the specific implementation.

The default implementation hashes the archive contents and uses it to return a stable file name.

Returns:

A stable indentifier that can be used as a file name.

Throws:

IOException - If the stream could not be read.