Package org.apache.tika.pipes.core.server

Class PipesServer

java.lang.Object

org.apache.tika.pipes.core.server.PipesServer

All Implemented Interfaces:

AutoCloseable

public class PipesServer
extends Object
implements AutoCloseable

This server is forked from the PipesClient. This class isolates parsing from the client to protect the primary JVM.

When configuring logging for this class, make absolutely certain not to write to STDOUT. This class uses STDOUT to communicate with the PipesClient.

Field Summary

Fields

Modifier and Type	Field	Description
static final int	AUTH_TOKEN_LENGTH_BYTES
static final int	IDLE_EXIT_CODE	Idle self-exit (no request within socketTimeoutMillis).
static final int	PARENT_GONE_EXIT_CODE	Exit code used when the child self-terminates because its parent JVM disappeared.
static final String	PARENT_PID_ENV	Env var the parent manager sets so the child can watch the parent's process handle and exit promptly if the parent dies.
static final String	SHARED_TEMP_DIR_PREFIX
static final String	TEMP_DIR_PREFIX	Prefixes of the temp dirs the parent creates for forks; a fork deletes only a dir so named.

Method Summary

Modifier and Type	Method	Description
void	close()
protected void	initializeResources()
static PipesServer	load(int port, Path tikaConfigPath)
static void	main(String[] args)
void	mainLoop()

Methods inherited from class java.lang.Object

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

Field Details

AUTH_TOKEN_LENGTH_BYTES

public static final int AUTH_TOKEN_LENGTH_BYTES

See Also:

• Constant Field Values

PARENT_PID_ENV

public static final String PARENT_PID_ENV

Env var the parent manager sets so the child can watch the parent's process handle and exit promptly if the parent dies.

See Also:

• Constant Field Values

TEMP_DIR_PREFIX

public static final String TEMP_DIR_PREFIX

Prefixes of the temp dirs the parent creates for forks; a fork deletes only a dir so named.

See Also:

• Constant Field Values

SHARED_TEMP_DIR_PREFIX

public static final String SHARED_TEMP_DIR_PREFIX

See Also:

• Constant Field Values

PARENT_GONE_EXIT_CODE

public static final int PARENT_GONE_EXIT_CODE

Exit code used when the child self-terminates because its parent JVM disappeared. Distinct from UNSPECIFIED_CRASH (19) so log readers can tell the difference between "I crashed" and "my parent went away".

See Also:

• Constant Field Values

IDLE_EXIT_CODE

public static final int IDLE_EXIT_CODE

Idle self-exit (no request within socketTimeoutMillis). Not 0: that means a parent-requested SHUT_DOWN. Other codes: PipesMessageType.getExitCode().

See Also:

• Constant Field Values

Method Details

load

public static PipesServer load(int port,
 Path tikaConfigPath)
                        throws Exception

Throws:

Exception

main

public static void main(String[] args)
                 throws Exception

Throws:

Exception

mainLoop

public void mainLoop()

close

public void close()
           throws Exception

Specified by:

close in interface AutoCloseable

Throws:

Exception

initializeResources

protected void initializeResources()
                            throws TikaException,
IOException,
SAXException

Throws:

TikaException

IOException

SAXException