Package de.iip_ecosphere.platform.services.environment

Class AbstractStringProcessService<I,O>

java.lang.Object

de.iip_ecosphere.platform.services.environment.AbstractService

de.iip_ecosphere.platform.services.environment.AbstractRunnablesService

de.iip_ecosphere.platform.services.environment.AbstractProcessService<I,String,String,O>

de.iip_ecosphere.platform.services.environment.AbstractStringProcessService<I,O>

Type Parameters:

I - the input data type

O - the output data type

All Implemented Interfaces:

MonitoringService, ParameterConfigurerProvider, Service, ServiceBase

public abstract class AbstractStringProcessService<I,O>
extends AbstractProcessService<I,String,String,O>

Implements an abstract asynchronous process-based service which require a String-based communication with the actual service process for a single pair of input-output types, e.g., via JSON.

Author:

Holger Eichelberger, SSE

Nested Class Summary

Nested classes/interfaces inherited from class de.iip_ecosphere.platform.services.environment.AbstractProcessService

AbstractProcessService.RunnableWithStop

Field Summary

Fields inherited from interface de.iip_ecosphere.platform.services.environment.switching.ServiceBase

APPLICATION_SEPARATOR, DEFAULT_APPLICATION_INSTANCE_ID

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	AbstractStringProcessService(de.iip_ecosphere.platform.transport.serialization.TypeTranslator<I,String> inTrans, de.iip_ecosphere.platform.transport.serialization.TypeTranslator<String,O> outTrans, de.iip_ecosphere.platform.transport.connectors.ReceptionCallback<O> callback, YamlService yaml)	Creates an instance of the service with the required type translators.

Method Summary

Modifier and Type	Method	Description
protected void	handleInputStream(InputStream in)	Handles the input stream upon process creation.
void	process(I data)	Requests to process the given data item.
void	redirectIO(InputStream in)	Redirects an input stream to another stream (in parallel).

Methods inherited from class de.iip_ecosphere.platform.services.environment.AbstractProcessService

addProcessSpecCmdArg, attachIngestor, attachMetricsProvider, configure, createAndConfigureProcess, createProcess, createProcess, getCallbacks, getExecutableName, getExecutableName, getExecutablePrefix, getExecutablePrefix, getExecutableSuffix, getInputTranslator, getOsArch, getOutputTranslator, getPid, getProcessId, getProcessSpec, getServiceIn, getServiceSpec, getWaitTimeBeforeDestroy, handleErrorStream, handleOutputStream, notifyCallbacks, processQuiet, redirectIO, selectNotNull, selectNotNull, setInheritIo, stop, waitAndDestroy, waitAndDestroy

Methods inherited from class de.iip_ecosphere.platform.services.environment.AbstractRunnablesService

register

Methods inherited from class de.iip_ecosphere.platform.services.environment.AbstractService

activate, addConfigurer, addConfigurer, addConfigurer, addTypeSubstitution, createGenericInstance, createGenericInstance, createGenericInstanceByPlugin, createGenericMultiInstance, createGenericMultiInstance, createGenericMultiInstanceByPlugin, createInstance, createInstance, createInstance, createInstanceByPlugin, getArg, getDescription, getId, getKind, getName, getNetMgtKeyAddress, getResourceAsStream, getState, getStringArg, getSubstitutedType, getTypeCreator, getTypeSubstitutions, getVersion, initializeFrom, isDeployable, isTopLevel, notifyReconfigured, passivate, reconf, reconfigure, reconfigure, rollbackReconfigurationOnFailure, setLibJars, setState, start, transferData

Methods inherited from class java.lang.Object

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

Methods inherited from interface de.iip_ecosphere.platform.services.environment.Service

activate, addTypeSubstitution, createType, createType, getDescription, getKind, getName, getNetMgtKeyAddress, getParameterConfigurer, getParameterNames, getSubstitutedType, getTypeCreator, getTypeSubstitutions, getVersion, isDeployable, isTopLevel, migrate, passivate, reconfigure, switchTo, update

Methods inherited from interface de.iip_ecosphere.platform.services.environment.switching.ServiceBase

getId, getState, setState

Constructor Details

AbstractStringProcessService

protected AbstractStringProcessService(de.iip_ecosphere.platform.transport.serialization.TypeTranslator<I,String> inTrans,
 de.iip_ecosphere.platform.transport.serialization.TypeTranslator<String,O> outTrans,
 de.iip_ecosphere.platform.transport.connectors.ReceptionCallback<O> callback,
 YamlService yaml)

Creates an instance of the service with the required type translators.

Parameters:

inTrans - the input translator

outTrans - the output translator

callback - called when data from the service is available

yaml - the service description

Method Details

process

public void process(I data)
             throws IOException

Description copied from class: AbstractProcessService

Requests to process the given data item.

Specified by:

process in class AbstractProcessService<I,String,String,O>

Parameters:

data - the data to process

Throws:

IOException - if processing/transferring to the service fails

redirectIO

public void redirectIO(InputStream in)

Redirects an input stream to another stream (in parallel).

Parameters:

in - the input stream of the spawned process (e.g., input/error)

handleInputStream

protected void handleInputStream(InputStream in)

Description copied from class: AbstractProcessService

Handles the input stream upon process creation.

Specified by:

handleInputStream in class AbstractProcessService<I,String,String,O>

Parameters:

in - the process input stream