org.apache.manifoldcf.agents.transformation.opennlp

Class OpenNlpExtractor

java.lang.Object

org.apache.manifoldcf.core.connector.BaseConnector

org.apache.manifoldcf.agents.transformation.BaseTransformationConnector

org.apache.manifoldcf.agents.transformation.opennlp.OpenNlpExtractor

All Implemented Interfaces:

org.apache.manifoldcf.agents.interfaces.IPipelineConnector, org.apache.manifoldcf.agents.interfaces.ITransformationConnector, org.apache.manifoldcf.core.interfaces.IConnector

public class OpenNlpExtractor
extends org.apache.manifoldcf.agents.transformation.BaseTransformationConnector

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
protected static interface	OpenNlpExtractor.DestinationStorage
protected static class	OpenNlpExtractor.FileDestinationStorage
protected static class	OpenNlpExtractor.FileFilter
protected static class	OpenNlpExtractor.MemoryDestinationStorage
protected class	OpenNlpExtractor.MetadataAccumulator An instance of this class receives characters in 64K chunks, and needs to accumulate extracted metadata that this transformer will pass down.
protected static class	OpenNlpExtractor.SpecPacker

Field Summary

Fields

Modifier and Type	Field and Description
protected static java.lang.String[]	activitiesList
protected static java.lang.String	ACTIVITY_EXTRACT
protected java.io.File	fileDirectory
protected static long	inMemoryMaximumFile We handle up to 64K in memory; after that we go to disk.
protected static int	maximumExtractionCharacters

Fields inherited from class org.apache.manifoldcf.agents.transformation.BaseTransformationConnector

_rcsid

Fields inherited from class org.apache.manifoldcf.core.connector.BaseConnector

currentContext, params

Fields inherited from interface org.apache.manifoldcf.agents.interfaces.IPipelineConnector

DOCUMENTSTATUS_ACCEPTED, DOCUMENTSTATUS_REJECTED

Constructor Summary

Constructors

Constructor and Description
OpenNlpExtractor()

Method Summary

Modifier and Type	Method and Description
int	addOrReplaceDocumentWithException(java.lang.String documentURI, org.apache.manifoldcf.core.interfaces.VersionContext pipelineDescription, org.apache.manifoldcf.agents.interfaces.RepositoryDocument document, java.lang.String authorityNameString, org.apache.manifoldcf.agents.interfaces.IOutputAddActivity activities) Add (or replace) a document in the output data store using the connector.
boolean	checkMimeTypeIndexable(org.apache.manifoldcf.core.interfaces.VersionContext pipelineDescription, java.lang.String mimeType, org.apache.manifoldcf.agents.interfaces.IOutputCheckActivity checkActivity) Detect if a mime type is acceptable or not.
protected static void	fillInOpenNLPSpecificationMap(java.util.Map<java.lang.String,java.lang.Object> paramMap, org.apache.manifoldcf.core.interfaces.Specification os)
java.lang.String[]	getActivitiesList() Return a list of activities that this connector generates.
java.lang.String	getFormCheckJavascriptMethodName(int connectionSequenceNumber) Obtain the name of the form check javascript method to call.
java.lang.String	getFormPresaveCheckJavascriptMethodName(int connectionSequenceNumber) Obtain the name of the form presave check javascript method to call.
protected java.lang.String[]	getModelList()
org.apache.manifoldcf.core.interfaces.VersionContext	getPipelineDescription(org.apache.manifoldcf.core.interfaces.Specification os) Get a pipeline version string, given a pipeline specification object.
protected static int	handleIOException(java.io.IOException e)
void	outputSpecificationBody(org.apache.manifoldcf.core.interfaces.IHTTPOutput out, java.util.Locale locale, org.apache.manifoldcf.core.interfaces.Specification os, int connectionSequenceNumber, int actualSequenceNumber, java.lang.String tabName) Output the specification body section.
void	outputSpecificationHeader(org.apache.manifoldcf.core.interfaces.IHTTPOutput out, java.util.Locale locale, org.apache.manifoldcf.core.interfaces.Specification os, int connectionSequenceNumber, java.util.List<java.lang.String> tabsArray) Output the specification header section.
java.lang.String	processSpecificationPost(org.apache.manifoldcf.core.interfaces.IPostParameters variableContext, java.util.Locale locale, org.apache.manifoldcf.core.interfaces.Specification os, int connectionSequenceNumber) Process a specification post.
protected void	setUpOpenNLPSpecificationMap(java.util.Map<java.lang.String,java.lang.Object> paramMap)
void	viewSpecification(org.apache.manifoldcf.core.interfaces.IHTTPOutput out, java.util.Locale locale, org.apache.manifoldcf.core.interfaces.Specification os, int connectionSequenceNumber) View specification.

Methods inherited from class org.apache.manifoldcf.agents.transformation.BaseTransformationConnector

checkDateIndexable, checkDocumentIndexable, checkLengthIndexable, checkURLIndexable, requestInfo

Methods inherited from class org.apache.manifoldcf.core.connector.BaseConnector

check, clearThreadContext, connect, deinstall, disconnect, getConfiguration, install, isConnected, outputConfigurationBody, outputConfigurationBody, outputConfigurationHeader, outputConfigurationHeader, outputConfigurationHeader, pack, packFixedList, packList, packList, poll, processConfigurationPost, processConfigurationPost, setThreadContext, unpack, unpackFixedList, unpackList, viewConfiguration, viewConfiguration

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.manifoldcf.core.interfaces.IConnector

check, clearThreadContext, connect, deinstall, disconnect, getConfiguration, install, isConnected, outputConfigurationBody, outputConfigurationHeader, poll, processConfigurationPost, setThreadContext, viewConfiguration

Field Detail

maximumExtractionCharacters

protected static int maximumExtractionCharacters

ACTIVITY_EXTRACT

protected static final java.lang.String ACTIVITY_EXTRACT

See Also:

Constant Field Values

activitiesList

protected static final java.lang.String[] activitiesList

fileDirectory

protected final java.io.File fileDirectory

inMemoryMaximumFile

protected static final long inMemoryMaximumFile

We handle up to 64K in memory; after that we go to disk.

See Also:

Constant Field Values

Constructor Detail

OpenNlpExtractor

public OpenNlpExtractor()

Method Detail

getActivitiesList

public java.lang.String[] getActivitiesList()

Return a list of activities that this connector generates. The connector does NOT need to be connected before this method is called.

Specified by:

getActivitiesList in interface org.apache.manifoldcf.agents.interfaces.ITransformationConnector

Overrides:

getActivitiesList in class org.apache.manifoldcf.agents.transformation.BaseTransformationConnector

Returns:

the set of activities.

getPipelineDescription

public org.apache.manifoldcf.core.interfaces.VersionContext getPipelineDescription(org.apache.manifoldcf.core.interfaces.Specification os)
                                                                            throws org.apache.manifoldcf.core.interfaces.ManifoldCFException,
                                                                                   org.apache.manifoldcf.agents.interfaces.ServiceInterruption

Get a pipeline version string, given a pipeline specification object. The version string is used to uniquely describe the pertinent details of the specification and the configuration, to allow the Connector Framework to determine whether a document will need to be processed again. Note that the contents of any document cannot be considered by this method; only configuration and specification information can be considered. This method presumes that the underlying connector object has been configured.

Specified by:

getPipelineDescription in interface org.apache.manifoldcf.agents.interfaces.IPipelineConnector

Overrides:

getPipelineDescription in class org.apache.manifoldcf.agents.transformation.BaseTransformationConnector

Parameters:

os - is the current pipeline specification object for this connection for the job that is doing the crawling.

Returns:

a string, of unlimited length, which uniquely describes configuration and specification in such a way that if two such strings are equal, nothing that affects how or whether the document is indexed will be different.

Throws:

org.apache.manifoldcf.core.interfaces.ManifoldCFException

org.apache.manifoldcf.agents.interfaces.ServiceInterruption

addOrReplaceDocumentWithException

public int addOrReplaceDocumentWithException(java.lang.String documentURI,
                                             org.apache.manifoldcf.core.interfaces.VersionContext pipelineDescription,
                                             org.apache.manifoldcf.agents.interfaces.RepositoryDocument document,
                                             java.lang.String authorityNameString,
                                             org.apache.manifoldcf.agents.interfaces.IOutputAddActivity activities)
                                      throws org.apache.manifoldcf.core.interfaces.ManifoldCFException,
                                             org.apache.manifoldcf.agents.interfaces.ServiceInterruption,
                                             java.io.IOException

Add (or replace) a document in the output data store using the connector. This method presumes that the connector object has been configured, and it is thus able to communicate with the output data store should that be necessary. The OutputSpecification is *not* provided to this method, because the goal is consistency, and if output is done it must be consistent with the output description, since that was what was partly used to determine if output should be taking place. So it may be necessary for this method to decode an output description string in order to determine what should be done.

Specified by:

addOrReplaceDocumentWithException in interface org.apache.manifoldcf.agents.interfaces.IPipelineConnector

Overrides:

addOrReplaceDocumentWithException in class org.apache.manifoldcf.agents.transformation.BaseTransformationConnector

Parameters:

documentURI - is the URI of the document. The URI is presumed to be the unique identifier which the output data store will use to process and serve the document. This URI is constructed by the repository connector which fetches the document, and is thus universal across all output connectors.

pipelineDescription - is the description string that was constructed for this document by the getOutputDescription() method.

document - is the document data to be processed (handed to the output data store).

authorityNameString - is the name of the authority responsible for authorizing any access tokens passed in with the repository document. May be null.

activities - is the handle to an object that the implementer of a pipeline connector may use to perform operations, such as logging processing activity, or sending a modified document to the next stage in the pipeline.

Returns:

the document status (accepted or permanently rejected).

Throws:

java.io.IOException - only if there's a stream error reading the document data.

org.apache.manifoldcf.core.interfaces.ManifoldCFException

org.apache.manifoldcf.agents.interfaces.ServiceInterruption

checkMimeTypeIndexable

public boolean checkMimeTypeIndexable(org.apache.manifoldcf.core.interfaces.VersionContext pipelineDescription,
                                      java.lang.String mimeType,
                                      org.apache.manifoldcf.agents.interfaces.IOutputCheckActivity checkActivity)
                               throws org.apache.manifoldcf.core.interfaces.ManifoldCFException,
                                      org.apache.manifoldcf.agents.interfaces.ServiceInterruption

Detect if a mime type is acceptable or not. This method is used to determine whether it makes sense to fetch a document in the first place.

Specified by:

checkMimeTypeIndexable in interface org.apache.manifoldcf.agents.interfaces.IPipelineConnector

Overrides:

checkMimeTypeIndexable in class org.apache.manifoldcf.agents.transformation.BaseTransformationConnector

Parameters:

pipelineDescription - is the document's pipeline version string, for this connection.

mimeType - is the mime type of the document.

checkActivity - is an object including the activities that can be performed by this method.

Returns:

true if the mime type can be accepted by this connector.

Throws:

org.apache.manifoldcf.core.interfaces.ManifoldCFException

org.apache.manifoldcf.agents.interfaces.ServiceInterruption

getFormCheckJavascriptMethodName

public java.lang.String getFormCheckJavascriptMethodName(int connectionSequenceNumber)

Obtain the name of the form check javascript method to call.

Specified by:

getFormCheckJavascriptMethodName in interface org.apache.manifoldcf.agents.interfaces.IPipelineConnector

Overrides:

getFormCheckJavascriptMethodName in class org.apache.manifoldcf.agents.transformation.BaseTransformationConnector

Parameters:

connectionSequenceNumber - is the unique number of this connection within the job.

Returns:

the name of the form check javascript method.

getFormPresaveCheckJavascriptMethodName

public java.lang.String getFormPresaveCheckJavascriptMethodName(int connectionSequenceNumber)

Obtain the name of the form presave check javascript method to call.

Specified by:

getFormPresaveCheckJavascriptMethodName in interface org.apache.manifoldcf.agents.interfaces.IPipelineConnector

Overrides:

getFormPresaveCheckJavascriptMethodName in class org.apache.manifoldcf.agents.transformation.BaseTransformationConnector

Parameters:

connectionSequenceNumber - is the unique number of this connection within the job.

Returns:

the name of the form presave check javascript method.

outputSpecificationHeader

public void outputSpecificationHeader(org.apache.manifoldcf.core.interfaces.IHTTPOutput out,
                                      java.util.Locale locale,
                                      org.apache.manifoldcf.core.interfaces.Specification os,
                                      int connectionSequenceNumber,
                                      java.util.List<java.lang.String> tabsArray)
                               throws org.apache.manifoldcf.core.interfaces.ManifoldCFException,
                                      java.io.IOException

Output the specification header section. This method is called in the head section of a job page which has selected an output connection of the current type. Its purpose is to add the required tabs to the list, and to output any javascript methods that might be needed by the job editing HTML.

Specified by:

outputSpecificationHeader in interface org.apache.manifoldcf.agents.interfaces.IPipelineConnector

Overrides:

outputSpecificationHeader in class org.apache.manifoldcf.agents.transformation.BaseTransformationConnector

Parameters:

out - is the output to which any HTML should be sent.

locale - is the preferred local of the output.

os - is the current output specification for this job.

connectionSequenceNumber - is the unique number of this connection within the job.

tabsArray - is an array of tab names. Add to this array any tab names that are specific to the connector.

Throws:

org.apache.manifoldcf.core.interfaces.ManifoldCFException

java.io.IOException

outputSpecificationBody

public void outputSpecificationBody(org.apache.manifoldcf.core.interfaces.IHTTPOutput out,
                                    java.util.Locale locale,
                                    org.apache.manifoldcf.core.interfaces.Specification os,
                                    int connectionSequenceNumber,
                                    int actualSequenceNumber,
                                    java.lang.String tabName)
                             throws org.apache.manifoldcf.core.interfaces.ManifoldCFException,
                                    java.io.IOException

Output the specification body section. This method is called in the body section of a job page which has selected an output connection of the current type. Its purpose is to present the required form elements for editing. The coder can presume that the HTML that is output from this configuration will be within appropriate <html>, <body>, and <form> tags. The name of the form is "editjob".

Specified by:

outputSpecificationBody in interface org.apache.manifoldcf.agents.interfaces.IPipelineConnector

Overrides:

outputSpecificationBody in class org.apache.manifoldcf.agents.transformation.BaseTransformationConnector

Parameters:

out - is the output to which any HTML should be sent.

locale - is the preferred local of the output.

os - is the current output specification for this job.

connectionSequenceNumber - is the unique number of this connection within the job.

actualSequenceNumber - is the connection within the job that has currently been selected.

tabName - is the current tab name.

Throws:

org.apache.manifoldcf.core.interfaces.ManifoldCFException

java.io.IOException

processSpecificationPost

public java.lang.String processSpecificationPost(org.apache.manifoldcf.core.interfaces.IPostParameters variableContext,
                                                 java.util.Locale locale,
                                                 org.apache.manifoldcf.core.interfaces.Specification os,
                                                 int connectionSequenceNumber)
                                          throws org.apache.manifoldcf.core.interfaces.ManifoldCFException

Process a specification post. This method is called at the start of job's edit or view page, whenever there is a possibility that form data for a connection has been posted. Its purpose is to gather form information and modify the output specification accordingly. The name of the posted form is "editjob".

Specified by:

processSpecificationPost in interface org.apache.manifoldcf.agents.interfaces.IPipelineConnector

Overrides:

processSpecificationPost in class org.apache.manifoldcf.agents.transformation.BaseTransformationConnector

Parameters:

variableContext - contains the post data, including binary file-upload information.

locale - is the preferred local of the output.

os - is the current output specification for this job.

connectionSequenceNumber - is the unique number of this connection within the job.

Returns:

null if all is well, or a string error message if there is an error that should prevent saving of the job (and cause a redirection to an error page).

Throws:

org.apache.manifoldcf.core.interfaces.ManifoldCFException

viewSpecification

public void viewSpecification(org.apache.manifoldcf.core.interfaces.IHTTPOutput out,
                              java.util.Locale locale,
                              org.apache.manifoldcf.core.interfaces.Specification os,
                              int connectionSequenceNumber)
                       throws org.apache.manifoldcf.core.interfaces.ManifoldCFException,
                              java.io.IOException

View specification. This method is called in the body section of a job's view page. Its purpose is to present the output specification information to the user. The coder can presume that the HTML that is output from this configuration will be within appropriate <html> and <body>tags.

Specified by:

viewSpecification in interface org.apache.manifoldcf.agents.interfaces.IPipelineConnector

Overrides:

viewSpecification in class org.apache.manifoldcf.agents.transformation.BaseTransformationConnector

Parameters:

out - is the output to which any HTML should be sent.

locale - is the preferred local of the output.

connectionSequenceNumber - is the unique number of this connection within the job.

os - is the current output specification for this job.

Throws:

org.apache.manifoldcf.core.interfaces.ManifoldCFException

java.io.IOException

setUpOpenNLPSpecificationMap

protected void setUpOpenNLPSpecificationMap(java.util.Map<java.lang.String,java.lang.Object> paramMap)
                                     throws org.apache.manifoldcf.core.interfaces.ManifoldCFException

Throws:

org.apache.manifoldcf.core.interfaces.ManifoldCFException

fillInOpenNLPSpecificationMap

protected static void fillInOpenNLPSpecificationMap(java.util.Map<java.lang.String,java.lang.Object> paramMap,
                                                    org.apache.manifoldcf.core.interfaces.Specification os)

handleIOException

protected static int handleIOException(java.io.IOException e)
                                throws org.apache.manifoldcf.core.interfaces.ManifoldCFException

Throws:

org.apache.manifoldcf.core.interfaces.ManifoldCFException

getModelList

protected java.lang.String[] getModelList()
                                   throws org.apache.manifoldcf.core.interfaces.ManifoldCFException

Throws:

org.apache.manifoldcf.core.interfaces.ManifoldCFException