org.modeshape.jcr
Class JcrEngine

java.lang.Object
  org.modeshape.repository.ModeShapeEngine
      org.modeshape.jcr.JcrEngine

All Implemented Interfaces:

Repositories

@ThreadSafe
public class JcrEngine
extends ModeShapeEngine
implements Repositories

The basic component that encapsulates the ModeShape services, including the Repository instances.

Nested Class Summary

Nested classes/interfaces inherited from class org.modeshape.repository.ModeShapeEngine

ModeShapeEngine.ConfigurationScanner

Field Summary

Fields inherited from class org.modeshape.repository.ModeShapeEngine

configuration, CONFIGURATION_REPOSITORY_NAME, context, DEFAULT_GARBAGE_COLLECTION_INTERVAL_IN_SECONDS, problems, scanner

Method Summary

boolean	awaitTermination(long timeout, TimeUnit unit) Blocks until the shutdown has completed, or the timeout occurs, or the current thread is interrupted, whichever happens first.
protected void	checkConfiguration(Subgraph configuration) Check the configuration given by the supplied graph.
protected JcrRepository	doCreateJcrRepository(String repositoryName)
String	getEngineVersion() Get the version of this engine.
JcrRepository	getRepository(String repositoryName) Get the Repository implementation for the named repository.
Set<String>	getRepositoryNames() Get the names of each of the JCR repositories.
Map<String,Object>	initDescriptors()
protected boolean	isTrue(Object value)
protected ModeShapeConfigurationException	newConfigurationException(String msg) Construct a new ModeShapeConfigurationException.
protected void	preShutdown()
protected String	readable(Location location)
protected String	readable(Name name)
protected String	readable(Path path)
void	shutdownAndAwaitTermination(long timeout, TimeUnit unit) This method is equivalent to calling ModeShapeEngine.shutdown() followed by awaitTermination(long, TimeUnit), except that after those methods are called any remaining JCR sessions are terminated automatically.
void	start() Start this engine to make it available for use.
void	start(boolean validateRepositoryConfigs) Start this engine to make it available for use, and optionally start each of the repositories in the configuration.
protected String	string(Object value)

Methods inherited from class org.modeshape.repository.ModeShapeEngine

checkProblemsOnStartup, checkRunning, getConfigurationGraph, getConfigurationSubgraph, getExecutionContext, getGraph, getGraph, getMimeTypeDetector, getProblems, getRepositoryConnectionFactory, getRepositoryService, getRepositorySource, getSequencingService, getTextExtractor, logger, newConfigurationScanner, postShutdown, shutdown, startGcService

Methods inherited from class java.lang.Object

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

Method Detail

preShutdown

protected void preShutdown()

Overrides:

preShutdown in class ModeShapeEngine

awaitTermination

public boolean awaitTermination(long timeout,
                                TimeUnit unit)
                         throws InterruptedException

Blocks until the shutdown has completed, or the timeout occurs, or the current thread is interrupted, whichever happens first.

Overrides:

awaitTermination in class ModeShapeEngine

Parameters:

timeout - the maximum time to wait for each component in this engine

unit - the time unit of the timeout argument

Returns:

true if this service complete shut down and false if the timeout elapsed before it was shut down completely

Throws:

InterruptedException - if interrupted while waiting

checkConfiguration

protected void checkConfiguration(Subgraph configuration)

Check the configuration given by the supplied graph.

Overrides:

checkConfiguration in class ModeShapeEngine

Parameters:

configuration - the configuration subgraph

See Also:

ModeShapeEngine.checkConfiguration(org.modeshape.graph.Subgraph)

start

public void start()

Start this engine to make it available for use.

Overrides:

start in class ModeShapeEngine

Throws:

IllegalStateException - if this method is called when already shut down.

JcrConfigurationException - if there is an error in the configuration or any of the services that prevents proper startup

See Also:

start(boolean), ModeShapeEngine.shutdown()

start

public void start(boolean validateRepositoryConfigs)

Start this engine to make it available for use, and optionally start each of the repositories in the configuration. Any errors starting the repositories will be logged as problems.

Parameters:

validateRepositoryConfigs - true if the configurations of each repository should be validated and each repository started/initialized, or false otherwise

Throws:

IllegalStateException - if this method is called when already shut down.

JcrConfigurationException - if there is an error in the configuration or any of the services that prevents proper startup

See Also:

start(), ModeShapeEngine.shutdown()

newConfigurationException

protected ModeShapeConfigurationException newConfigurationException(String msg)

Construct a new ModeShapeConfigurationException. This method can be overridden by subclasses when a subclass of ModeShapeConfigurationException is to be thrown from ModeShapeEngine.start().

Overrides:

newConfigurationException in class ModeShapeEngine

Parameters:

msg - the message

Returns:

the exception; may not be null

See Also:

ModeShapeEngine.newConfigurationException(java.lang.String)

getEngineVersion

public String getEngineVersion()

Get the version of this engine.

Returns:

version

getRepository

public final JcrRepository getRepository(String repositoryName)
                                  throws RepositoryException

Get the Repository implementation for the named repository.

Specified by:

getRepository in interface Repositories

Parameters:

repositoryName - the name of the repository, which corresponds to the name of a configured RepositorySource

Returns:

the named repository instance

Throws:

IllegalArgumentException - if the repository name is null, blank or invalid

RepositoryException - if there is no repository with the specified name

IllegalStateException - if this engine was not started

getRepositoryNames

public Set<String> getRepositoryNames()

Get the names of each of the JCR repositories.

Specified by:

getRepositoryNames in interface Repositories

Returns:

the immutable names of the repositories that exist at the time this method is called

doCreateJcrRepository

protected JcrRepository doCreateJcrRepository(String repositoryName)
                                       throws RepositoryException,
                                              PathNotFoundException

Throws:

RepositoryException

PathNotFoundException

readable

protected final String readable(Name name)

readable

protected final String readable(Path path)

readable

protected final String readable(Location location)

string

protected final String string(Object value)

isTrue

protected final boolean isTrue(Object value)

initDescriptors

public Map<String,Object> initDescriptors()

Returns:

descriptors

shutdownAndAwaitTermination

public void shutdownAndAwaitTermination(long timeout,
                                        TimeUnit unit)
                                 throws InterruptedException

This method is equivalent to calling ModeShapeEngine.shutdown() followed by awaitTermination(long, TimeUnit), except that after those methods are called any remaining JCR sessions are terminated automatically. This is useful when shutting down while there are long-running JCR sessions (such as for event listeners).

Parameters:

timeout - the maximum time to wait for each component in this engine

unit - the time unit of the timeout argument

Throws:

InterruptedException - if interrupted while waiting