Interface ServerManager
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- All Superinterfaces:
AutoCloseable
- All Known Implementing Classes:
DomainManager,StandaloneManager
public interface ServerManager extends AutoCloseable
A simple manager for various interactions with a potentially running server.When the server manager is closed, the underlying client is also closed.
- Author:
- James R. Perkins
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Nested Class Summary
Nested Classes Modifier and Type Interface Description static classServerManager.BuilderA builder used to build aServerManager.
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Method Summary
All Methods Static Methods Instance Methods Abstract Methods Default Methods Modifier and Type Method Description default ServerManagerasManaged()Returns an instance of this server manager which does not allow the shutting down the server.static ServerManager.Builderbuilder()Creates a builder to build a server manager.org.jboss.as.controller.client.ModelControllerClientclient()Returns the client associated with this server manager.default voidclose()ContainerDescriptioncontainerDescription()Returns the container description for the running server.DeploymentManagerdeploymentManager()Returns the deployment manager for the server.default org.jboss.dmr.ModelNodeexecuteOperation(org.jboss.as.controller.client.Operation op)Executes the operation with theclient()returning the result or throwing anOperationExecutionExceptionif the operation failed.default org.jboss.dmr.ModelNodeexecuteOperation(org.jboss.dmr.ModelNode op)Executes the operation with theclient()returning the result or throwing anOperationExecutionExceptionif the operation failed.voidexecuteReload()Reloads the server and returns immediately.voidexecuteReload(org.jboss.dmr.ModelNode reloadOp)Reloads the server and returns immediately.static Optional<ProcessHandle>findProcess()Attempts to find the controlling process.default booleanisClosed()Checks if this server manager has been closed.booleanisRunning()Checks to see if a server is running.static booleanisRunning(org.jboss.as.controller.client.ModelControllerClient client)Checks if a server is running regardless if it is a standalone or domain server.static booleanisValidHomeDirectory(String path)Checks whether the directory is a valid home directory for a server.static booleanisValidHomeDirectory(Path path)Checks whether the directory is a valid home directory for a server.default CompletableFuture<ServerManager>kill()StringlaunchType()Determines the servers "launch-type".static Optional<String>launchType(org.jboss.as.controller.client.ModelControllerClient client)Returns the "launch-type" attribute of a server.voidreloadIfRequired()Checks if the container status is "reload-required" and if it's the case, executes reload and waits for completion with a 10 second timeout.voidreloadIfRequired(long timeout, TimeUnit unit)Checks if the container status is "reload-required" and if it's the case, executes reload and waits for completion.StringserverState()Gets the "server-state" for standalone servers or the "host-state" for domain servers.default voidshutdown()Shuts down the server without a graceful shutdown timeout and wait for the server to be shutdown.voidshutdown(long timeout)Shuts down the server and wait for the servers to be shutdown.default CompletableFuture<ServerManager>shutdownAsync()Shuts down the server without a graceful shutdown timeout.default CompletableFuture<ServerManager>shutdownAsync(long timeout)Shuts down the server.static DomainManagerstart(DomainConfiguration configuration)Starts a domain server based on thecommand builderand waits until the server is started.static StandaloneManagerstart(StandaloneConfiguration configuration)Starts a standalone server based on thecommand builder.StringtakeSnapshot()Takes a snapshot of the current servers configuration and returns the relative file name of the snapshot.default booleanwaitFor(long startupTimeout)Waits the given amount of time in seconds for a server to start.booleanwaitFor(long startupTimeout, TimeUnit unit)Waits the given amount of time for a server to start.
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Method Detail
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builder
static ServerManager.Builder builder()
Creates a builder to build a server manager.- Returns:
- a new builder
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findProcess
static Optional<ProcessHandle> findProcess()
Attempts to find the controlling process. For a domain server this, returns the process handle for the process controller. For a standalone server, this returns the standalone process handle.Please note this method does not work on Windows. The
ProcessHandle.Info.arguments()is limited by the operating systems privileges.- Returns:
- the process handle if one was found running
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isValidHomeDirectory
static boolean isValidHomeDirectory(Path path)
Checks whether the directory is a valid home directory for a server.This validates the path is not
null, exists, is a directory and contains ajboss-modules.jar.- Parameters:
path- the path to validate- Returns:
trueif the path is valid otherwisefalse
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isValidHomeDirectory
static boolean isValidHomeDirectory(String path)
Checks whether the directory is a valid home directory for a server.This validates the path is not
null, exists, is a directory and contains ajboss-modules.jar.- Parameters:
path- the path to validate- Returns:
trueif the path is valid otherwisefalse
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isRunning
static boolean isRunning(org.jboss.as.controller.client.ModelControllerClient client)
Checks if a server is running regardless if it is a standalone or domain server.- Parameters:
client- the client used to check the server state- Returns:
trueif a server is running, otherwisefalse
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launchType
static Optional<String> launchType(org.jboss.as.controller.client.ModelControllerClient client)
Returns the "launch-type" attribute of a server.- Parameters:
client- the client used to check the launch-type attribute- Returns:
- the servers launch-type
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start
static StandaloneManager start(StandaloneConfiguration configuration) throws ServerManagerException
Starts a standalone server based on thecommand builder.final ServerManager serverManager = ServerManager.start(StandaloneCommandBuilder.of(jbossHome)); if (!serverManager.waitFor(10L, TimeUnit.SECONDS)) { serverManager.kill(); throw new RuntimeException("Failed to start server"); }- Parameters:
configuration- the configuration used for starting and managing the server- Returns:
- the server manager
- Throws:
ServerManagerException- if an error occurs starting the server- Since:
- 1.2
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start
static DomainManager start(DomainConfiguration configuration) throws ServerManagerException
Starts a domain server based on thecommand builderand waits until the server is started.final ServerManager serverManager = ServerManager.start(DomainCommandBuilder.of(jbossHome)); if (!serverManager.waitFor(10L, TimeUnit.SECONDS)) { serverManager.kill(); throw new RuntimeException("Failed to start server"); }- Parameters:
configuration- the configuration used for starting and managing the server- Returns:
- the server manager
- Throws:
ServerManagerException- if an error occurs starting the server- Since:
- 1.2
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client
org.jboss.as.controller.client.ModelControllerClient client()
Returns the client associated with this server manager.- Returns:
- a client to communicate with the server
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serverState
String serverState()
Gets the "server-state" for standalone servers or the "host-state" for domain servers.- Returns:
- the server-state or "failed" if an error occurred
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launchType
String launchType()
Determines the servers "launch-type".- Returns:
- the servers launch-type or "unknown" if it could not be determined
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takeSnapshot
String takeSnapshot() throws IOException
Takes a snapshot of the current servers configuration and returns the relative file name of the snapshot.This simply executes the
take-snapshotoperation with no arguments.- Returns:
- the file name of the snapshot configuration file
- Throws:
IOException- if an error occurs executing the operation
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containerDescription
ContainerDescription containerDescription() throws IOException
Returns the container description for the running server.- Returns:
- the container description for the running server
- Throws:
IOException- if an error occurs communicating with the server
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deploymentManager
DeploymentManager deploymentManager()
Returns the deployment manager for the server.- Returns:
- the deployment manager
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isRunning
boolean isRunning()
Checks to see if a server is running.- Returns:
trueif the server is running, otherwisefalse
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kill
default CompletableFuture<ServerManager> kill()
If a process is available and alive, the process is attempted to be killed. Note in cases where the process is not associated with this server manager, this method does nothing.The returned
ServerManageris the same instance of this server manager. You can use theCompletableFuture.get()to wait until the process, if available, to exit.- Returns:
- a completable future that on a
CompletableFuture.get()will wait for the process, if available, exits - Since:
- 1.2
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waitFor
default boolean waitFor(long startupTimeout) throws InterruptedExceptionWaits the given amount of time in seconds for a server to start.If the
processis notnulland a timeout occurs the process will be destroyed.- Parameters:
startupTimeout- the time, in seconds, to wait for the server start- Returns:
trueif the server is up and running,falseif a timeout occurred waiting for the server to be in a running state- Throws:
InterruptedException- if interrupted while waiting for the server to start
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waitFor
boolean waitFor(long startupTimeout, TimeUnit unit) throws InterruptedExceptionWaits the given amount of time for a server to start.If the
processis notnulland a timeout occurs the process will be destroyed.- Parameters:
startupTimeout- the time, to wait for the server startunit- the time unit for thestartupTimeoutargument- Returns:
trueif the server is up and running,falseif a timeout occurred waiting for the server to be in a running state- Throws:
InterruptedException- if interrupted while waiting for the server to start
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shutdown
default void shutdown() throws IOExceptionShuts down the server without a graceful shutdown timeout and wait for the server to be shutdown. This is a shortcut for @link #shutdown(long) shutdown(0)}.- Throws:
IOException- if an error occurs communicating with the server- See Also:
shutdown(long)
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shutdown
void shutdown(long timeout) throws IOExceptionShuts down the server and wait for the servers to be shutdown.- Parameters:
timeout- the graceful shutdown timeout, a value of-1will wait indefinitely and a value of0will not attempt a graceful shutdown- Throws:
IOException- if an error occurs communicating with the server
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shutdownAsync
default CompletableFuture<ServerManager> shutdownAsync()
Shuts down the server without a graceful shutdown timeout. This is a shortcut forshutdown(0).The returned
ServerManageris the same instance of this server manager. You can use theCompletableFuture.get()to wait until the process, if available, to exit.- Returns:
- a completable future that on a
CompletableFuture.get()will wait for the process, if available, exits - Since:
- 1.2
- See Also:
shutdownAsync(long)
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shutdownAsync
default CompletableFuture<ServerManager> shutdownAsync(long timeout)
Shuts down the server.The returned
ServerManageris the same instance of this server manager. You can use theCompletableFuture.get()to wait until the process, if available, to exit.Note for implementations. The default method should likely not be used. Care must be taken to ensure a
TimeoutExceptionon aCompletableFuture.get()stops the shutdown from continuing to run in the background.- Parameters:
timeout- the graceful shutdown timeout, a value of-1will wait indefinitely and a value of0will not attempt a graceful shutdown- Returns:
- a completable future that on a
CompletableFuture.get()will wait for the process, if available, exits - Since:
- 1.2
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executeReload
void executeReload() throws IOExceptionReloads the server and returns immediately.- Throws:
IOException- if an error occurs communicating with the server
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executeReload
void executeReload(org.jboss.dmr.ModelNode reloadOp) throws IOExceptionReloads the server and returns immediately.- Parameters:
reloadOp- the reload operation to execute- Throws:
IOException- if an error occurs communicating with the server
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reloadIfRequired
void reloadIfRequired() throws IOExceptionChecks if the container status is "reload-required" and if it's the case, executes reload and waits for completion with a 10 second timeout.- Throws:
IOException- if an error occurs communicating with the server- See Also:
reloadIfRequired(long, TimeUnit)
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reloadIfRequired
void reloadIfRequired(long timeout, TimeUnit unit) throws IOExceptionChecks if the container status is "reload-required" and if it's the case, executes reload and waits for completion.- Parameters:
timeout- the time to wait for the server to reloadunit- the time unit for thetimeoutargument- Throws:
IOException- if an error occurs communicating with the server
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executeOperation
default org.jboss.dmr.ModelNode executeOperation(org.jboss.dmr.ModelNode op) throws IOException, OperationExecutionExceptionExecutes the operation with theclient()returning the result or throwing anOperationExecutionExceptionif the operation failed.- Parameters:
op- the operation to execute- Returns:
- the result of the operation
- Throws:
IOException- if an error occurs communicating with the serverOperationExecutionException- if the operation failed- Since:
- 1.2
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executeOperation
default org.jboss.dmr.ModelNode executeOperation(org.jboss.as.controller.client.Operation op) throws IOException, OperationExecutionExceptionExecutes the operation with theclient()returning the result or throwing anOperationExecutionExceptionif the operation failed.- Parameters:
op- the operation to execute- Returns:
- the result of the operation
- Throws:
IOException- if an error occurs communicating with the serverOperationExecutionException- if the operation failed- Since:
- 1.2
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isClosed
default boolean isClosed()
Checks if this server manager has been closed. The server manager may be closed if the underlying client was closed.- Returns:
trueif the server manager was closed, otherwisefalse- Since:
- 1.2
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close
default void close()
- Specified by:
closein interfaceAutoCloseable- Since:
- 1.2
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asManaged
default ServerManager asManaged()
Returns an instance of this server manager which does not allow the shutting down the server. Ashutdownoperation is not allowed and throws anUnsupportedOperationException. Theshutdown(),shutdown(long)andkill()operations also throw anUnsupportedOperationException.The use-case for this is for cases when you do not want to allow a caller to be able to shutdown a server that has been started.
- Returns:
- a managed server manager
- Since:
- 1.2
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