Public Member Functions | Static Public Attributes | Protected Member Functions | Protected Attributes | Private Member Functions | Private Attributes

DatasetRead Class Reference
[Dataset Management Web Service]

Dataset Read Web Service. It reads description of datasets of a structWSF instance. More...

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Public Member Functions

 __construct ($uri, $meta, $registered_ip, $requester_ip)
 Constructor.
 __destruct ()
 pipeline_getError ()
 Returns the error structure.
 pipeline_getResultset ()
 Create a resultset in a pipelined mode based on the processed information by the Web service.
 injectDoctype ($xmlDoc)
 Inject the DOCType in a XML document.
 ws_conneg ($accept, $accept_charset, $accept_encoding, $accept_language)
 Do content negotiation as an external Web Service.
 pipeline_conneg ($accept, $accept_charset, $accept_encoding, $accept_language)
 Do content negotiation as an internal, pipelined, Web Service that is part of a Compound Web Service.
 pipeline_getResponseHeaderStatus ()
 Returns the response HTTP header status.
 pipeline_getResponseHeaderStatusMsg ()
 Returns the response HTTP header status message.
 pipeline_getResponseHeaderStatusMsgExt ()
 Returns the response HTTP header status message extension.
 pipeline_serialize ()
 Serialize the web service answer.
 pipeline_serialize_reification ()
 Non implemented method (only defined).
 ws_serialize ()
 Serialize the web service answer.
 ws_respond ($content)
 Sends the HTTP response to the requester.
 process ()
 Read informationa about a target dataset.
 xmlEncode ($string)
 Encode content to be included in XML files.
 jsonEncode ($string)
 Encode a string to put in a JSON value.

Static Public Attributes

static $supportedSerializations
 Supported serialization mime types by this Web service.
static $data_ini = "/data/"
 data.ini file folder
static $network_ini = "/usr/share/structwsf/"
 network.ini file folder

Protected Member Functions

 validateQuery ()
 Validate a query to this web service.

Protected Attributes

 $db_username = ""
 Database user name.
 $db_password = ""
 Database password.
 $db_dsn = ""
 Database DSN connection.
 $db_host = "localhost"
 Database host.
 $dtdBaseURL = ""
 DTD URL of the web service.
 $wsf_graph = ""
 The graph where the Web Services Framework description has been indexed.
 $wsf_base_url = ""
 Base URL of the WSF.
 $wsf_base_path = ""
 Local server path of the WSF files.
 $wsf_local_ip = ""
 Local server path of the WSF files.
 $wsf_solr_core = ""
 The core to use for Solr; "" for no core.
 $ontologies_files_folder = ""
 Path to the ontologies description files (in RDFS and OWL).
 $solr_host = "localhost"
 Hostname where to send queries to the Solr instance.
 $ontological_structure_folder = ""
 Path to the structWSF ontological structure.
 $track_create = FALSE
 Enable the tracking of records changes from the Crud Create web service endpoint.
 $track_update = FALSE
 Enable the tracking of records changes from the Crud Update web service endpoint.
 $track_delete = FALSE
 Enable the tracking of records changes from the Crud Delete web service endpoint.
 $tracking_endpoint = ""
 Specifies a specific WSF tracking web service endpoint URL to access the tracking endpoint. This is useful to put all the record changes tracking on a different, dedicated purposes, WSF server. If this parameter is commented, we will use the wsf_base_url to access the tracking endpoints. If it is uncommented, then we will use the endpoint specified by this parameter.
 $triplestore_port = "8890"
 Port number where the triple store server is reachable.
 $solr_port = "8983"
 Port number where the Solr store server is reachable.
 $log_table = "SD.WSF.ws_queries_log"
 Name of the logging table on the Virtuoso instance.
 $solr_auto_commit = FALSE
 Auto commit handled by the Solr data management systems. If this parameter is true, then this means Solr will handle the commit operation by itself. If it is false, then the web services will trigger the commit operations. Usually, Auto-commit should be handled by Solr when the size of the dataset is too big, otherwise operation such as delete could take much time.
 $fields_index_folder = "/tmp/"
 This is the folder there the file of the index where all the fields defined in Solr are indexed. You have to make sure that the web server has write access to this folder. This folder path has to end with a slash "/".
 $uri
 The URI of the Authentication Registrar web service.
 $title
 The Title of the Authentication Registrar web service.
 $crud_usage
 The CRUD usage of the Authentication Registrar web service.
 $endpoint
 The endpoint of the Authentication Registrar web service.
 $owlapiNbSessions
 Number of sessions (threads) to use in parallel.
 $owlapiBridgeURI
 URL where the Java Bridge can be accessed from this server.
 $geoEnabled = FALSE

Private Member Functions

 uriEncode ($uri)
 Normalize the remaining of a URI.
 getNamespace ($uri)
 Get the namespace of a URI.

Private Attributes

 $db
 Database connection.
 $conneg
 Conneg object that manage the content negotiation capabilities of the web service.
 $dtdURL
 URL where the DTD of the XML document can be located on the Web.
 $requester_ip = ""
 IP of the requester.
 $registered_ip = ""
 Requested IP.
 $datasetUri = ""
 URI of the target dataset(s). "all"mean all datasets visible to thatuser.
 $datasetsDescription = array()
 Description of one or multiple datasets.
 $addMeta = "false"
 Add meta information to the resultset.
 $namespaces
 Namespaces/Prefixes binding.
 $errorMessenger
 Error messages of this web service.

Detailed Description

Dataset Read Web Service. It reads description of datasets of a structWSF instance.


Author:
Frederick Giasson, Structured Dynamics LLC.




Definition at line 26 of file DatasetRead.php.

Constructor & Destructor Documentation

__construct ( $  uri,
$  meta,
$  registered_ip,
$  requester_ip 
)

Constructor.

Initialize the Auth Web Service

Parameters:
[in] $uri URI of the dataset to read (get its description)
[in] $meta Add meta information with the resultset
[in] $registered_ip Target IP address registered in the WSF
[in] $requester_ip IP address of the requester


Returns:
returns NULL
Author:
Frederick Giasson, Structured Dynamics LLC.




Definition at line 128 of file DatasetRead.php.

References $meta, $registered_ip, $requester_ip, WebService::$uri, and WebService::__construct().

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__destruct (  ) 

Reimplemented from WebService.

Definition at line 173 of file DatasetRead.php.

Referenced by ws_respond().

Member Function Documentation

getNamespace ( $  uri  )  [private]

Get the namespace of a URI.

Parameters:
[in] $uri Uri of the resource from which we want the namespace


Returns:
returns the extracted namespace
Author:
Frederick Giasson, Structured Dynamics LLC.




Definition at line 614 of file DatasetRead.php.

References WebService::$uri.

injectDoctype ( $  xmlDoc  ) 

Inject the DOCType in a XML document.


Parameters:
[in] $xmlDoc The XML document where to inject the doctype
Returns:
a XML document with a doctype
Author:
Frederick Giasson, Structured Dynamics LLC.




Reimplemented from WebService.

Definition at line 488 of file DatasetRead.php.

Referenced by pipeline_getResultset().

jsonEncode ( $  string  )  [inherited]

Encode a string to put in a JSON value.

Parameters:
[in] $string The string to escape


Returns:
returns the escaped string
Author:
Frederick Giasson, Structured Dynamics LLC.




Definition at line 591 of file WebService.php.

Referenced by Sparql::pipeline_serialize(), Search::pipeline_serialize(), pipeline_serialize(), CrudRead::pipeline_serialize(), Browse::pipeline_serialize(), and AuthLister::pipeline_serialize().

pipeline_conneg ( $  accept,
$  accept_charset,
$  accept_encoding,
$  accept_language 
)

Do content negotiation as an internal, pipelined, Web Service that is part of a Compound Web Service.


Parameters:
[in] $accept Accepted mime types (HTTP header)
[in] $accept_charset Accepted charsets (HTTP header)
[in] $accept_encoding Accepted encodings (HTTP header)
[in] $accept_language Accepted languages (HTTP header)
Returns:
returns NULL
Author:
Frederick Giasson, Structured Dynamics LLC.




Reimplemented from WebService.

Definition at line 561 of file DatasetRead.php.

References ws_conneg().

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pipeline_getError (  ) 

Returns the error structure.


Returns:
returns the error structure
Author:
Frederick Giasson, Structured Dynamics LLC.




Reimplemented from WebService.

Definition at line 304 of file DatasetRead.php.

pipeline_getResponseHeaderStatus (  ) 

Returns the response HTTP header status.


Returns:
returns the response HTTP header status
Author:
Frederick Giasson, Structured Dynamics LLC.




Reimplemented from WebService.

Definition at line 574 of file DatasetRead.php.

pipeline_getResponseHeaderStatusMsg (  ) 

Returns the response HTTP header status message.


Returns:
returns the response HTTP header status message
Author:
Frederick Giasson, Structured Dynamics LLC.




Reimplemented from WebService.

Definition at line 586 of file DatasetRead.php.

pipeline_getResponseHeaderStatusMsgExt (  ) 

Returns the response HTTP header status message extension.


Returns:
returns the response HTTP header status message extension
Note:
The extension of a HTTP status message is
Author:
Frederick Giasson, Structured Dynamics LLC.




Reimplemented from WebService.

Definition at line 600 of file DatasetRead.php.

pipeline_getResultset (  ) 

Create a resultset in a pipelined mode based on the processed information by the Web service.


Returns:
a resultset XML document
Author:
Frederick Giasson, Structured Dynamics LLC.




Reimplemented from WebService.

Definition at line 317 of file DatasetRead.php.

References $query, and injectDoctype().

Referenced by pipeline_serialize(), and ws_serialize().

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pipeline_serialize (  ) 

Serialize the web service answer.


Returns:
returns the serialized content
Author:
Frederick Giasson, Structured Dynamics LLC.




Todo:
Implementing the "nsX" generation for the RDF output of dataset read. This is needed otherwise the generated document wont be valid if meta data values are added.

Reimplemented from WebService.

Definition at line 665 of file DatasetRead.php.

References $dataset, WebService::jsonEncode(), pipeline_getResultset(), and WebService::xmlEncode().

Referenced by ws_serialize().

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pipeline_serialize_reification (  ) 

Non implemented method (only defined).


Author:
Frederick Giasson, Structured Dynamics LLC.




Reimplemented from WebService.

Definition at line 912 of file DatasetRead.php.

process (  ) 

Read informationa about a target dataset.


Author:
Frederick Giasson, Structured Dynamics LLC.




Reimplemented from WebService.

Definition at line 1020 of file DatasetRead.php.

References $contributors, $creator, $dataset, $datasets, $description, $meta, $modified, $query, and WebService::$title.

uriEncode ( $  uri  )  [private]

Normalize the remaining of a URI.


Parameters:
[in] $uri The remaining of a URI to normalize
Returns:
a Normalized remaining URI
Author:
Frederick Giasson, Structured Dynamics LLC.




Definition at line 285 of file DatasetRead.php.

References WebService::$uri.

validateQuery (  )  [protected]

Validate a query to this web service.

If a user wants to read information about a dataset on a given structWSF web service endpoint, he has to have access to the "http://.../wsf/datasets/" graph with Read privileges, or to have Read privileges on the dataset URI itself. If the users doesn't have these permissions, then he won't be able to read the description of the dataset on that instance.

By default, the administrators, and the creator of the dataset, have such an access on a structWSF instance. However a system administrator can choose to make the "http://.../wsf/datasets/" world readable, which would mean that anybody could read information about the datasets on the instance.


Returns:
TRUE if valid; FALSE otherwise
Note:
This function is not used by the authentication validator web service
Author:
Frederick Giasson, Structured Dynamics LLC.




Reimplemented from WebService.

Definition at line 204 of file DatasetRead.php.

References $ws_av.

Referenced by ws_conneg().

ws_conneg ( $  accept,
$  accept_charset,
$  accept_encoding,
$  accept_language 
)

Do content negotiation as an external Web Service.


Parameters:
[in] $accept Accepted mime types (HTTP header)
[in] $accept_charset Accepted charsets (HTTP header)
[in] $accept_encoding Accepted encodings (HTTP header)
[in] $accept_language Accepted languages (HTTP header)
Returns:
returns NULL
Author:
Frederick Giasson, Structured Dynamics LLC.




Reimplemented from WebService.

Definition at line 516 of file DatasetRead.php.

References $supportedSerializations, and validateQuery().

Referenced by pipeline_conneg().

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ws_respond ( $  content  ) 

Sends the HTTP response to the requester.


Parameters:
[in] $content The content (body) of the response.
Returns:
NULL
Author:
Frederick Giasson, Structured Dynamics LLC.




Reimplemented from WebService.

Definition at line 995 of file DatasetRead.php.

References __destruct().

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ws_serialize (  ) 

Serialize the web service answer.


Returns:
returns the serialized content
Author:
Frederick Giasson, Structured Dynamics LLC.




Reimplemented from WebService.

Definition at line 924 of file DatasetRead.php.

References pipeline_getResultset(), and pipeline_serialize().

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xmlEncode ( $  string  )  [inherited]

Encode content to be included in XML files.


Parameters:
[in] $string The content string to be encoded
Returns:
returns the encoded string
Author:
Frederick Giasson, Structured Dynamics LLC.




Definition at line 569 of file WebService.php.

Referenced by ConverterCommON::pipeline_getResultset(), Sparql::pipeline_serialize(), Search::pipeline_serialize(), pipeline_serialize(), CrudRead::pipeline_serialize(), ConverterTsv::pipeline_serialize(), ConverterIrJSON::pipeline_serialize(), ConverterBibtex::pipeline_serialize(), Browse::pipeline_serialize(), AuthLister::pipeline_serialize(), Search::pipeline_serialize_reification(), CrudRead::pipeline_serialize_reification(), ConverterIrJSON::pipeline_serialize_reification(), Browse::pipeline_serialize_reification(), CrudUpdate::process(), and CrudCreate::process().

Field Documentation

$addMeta = "false" [private]

Add meta information to the resultset.

Definition at line 50 of file DatasetRead.php.

$conneg [private]

Conneg object that manage the content negotiation capabilities of the web service.

Definition at line 32 of file DatasetRead.php.

$crud_usage [protected, inherited]

The CRUD usage of the Authentication Registrar web service.

Definition at line 122 of file WebService.php.

Referenced by AuthRegistrarWs::ws_conneg().

$data_ini = "/data/" [static, inherited]

data.ini file folder

Definition at line 32 of file WebService.php.

Referenced by WebService::__construct(), and Logger::__construct().

$datasetsDescription = array() [private]

Description of one or multiple datasets.

Definition at line 47 of file DatasetRead.php.

$datasetUri = "" [private]

URI of the target dataset(s). "all"mean all datasets visible to thatuser.

Definition at line 44 of file DatasetRead.php.

$db [private]

Database connection.

Definition at line 29 of file DatasetRead.php.

$db_dsn = "" [protected, inherited]

Database DSN connection.

Definition at line 44 of file WebService.php.

$db_host = "localhost" [protected, inherited]

Database host.

Definition at line 47 of file WebService.php.

$db_password = "" [protected, inherited]

Database password.

Definition at line 41 of file WebService.php.

$db_username = "" [protected, inherited]

Database user name.

Definition at line 38 of file WebService.php.

$dtdBaseURL = "" [protected, inherited]

DTD URL of the web service.

Definition at line 50 of file WebService.php.

$dtdURL [private]

URL where the DTD of the XML document can be located on the Web.

Definition at line 35 of file DatasetRead.php.

$endpoint [protected, inherited]

The endpoint of the Authentication Registrar web service.

Definition at line 125 of file WebService.php.

Referenced by CrudUpdate::process(), CrudDelete::process(), and CrudCreate::process().

$errorMessenger [private]

Error messages of this web service.

Definition at line 64 of file DatasetRead.php.

$fields_index_folder = "/tmp/" [protected, inherited]

This is the folder there the file of the index where all the fields defined in Solr are indexed. You have to make sure that the web server has write access to this folder. This folder path has to end with a slash "/".

Definition at line 113 of file WebService.php.

$geoEnabled = FALSE [protected, inherited]

Definition at line 133 of file WebService.php.

$log_table = "SD.WSF.ws_queries_log" [protected, inherited]

Name of the logging table on the Virtuoso instance.

Definition at line 100 of file WebService.php.

$namespaces [private]
Initial value:
    array ("http://www.w3.org/2002/07/owl#" => "owl", "http://www.w3.org/1999/02/22-rdf-syntax-ns#" => "rdf",
      "http://www.w3.org/2000/01/rdf-schema#" => "rdfs", "http://purl.org/ontology/wsf#" => "wsf")

Namespaces/Prefixes binding.

Definition at line 53 of file DatasetRead.php.

$network_ini = "/usr/share/structwsf/" [static, inherited]

network.ini file folder

Definition at line 35 of file WebService.php.

Referenced by WebService::__construct().

$ontological_structure_folder = "" [protected, inherited]

Path to the structWSF ontological structure.

Definition at line 74 of file WebService.php.

$ontologies_files_folder = "" [protected, inherited]

Path to the ontologies description files (in RDFS and OWL).

Definition at line 68 of file WebService.php.

$owlapiBridgeURI [protected, inherited]

URL where the Java Bridge can be accessed from this server.

Definition at line 131 of file WebService.php.

$owlapiNbSessions [protected, inherited]

Number of sessions (threads) to use in parallel.

Definition at line 128 of file WebService.php.

$registered_ip = "" [private]

Requested IP.

Definition at line 41 of file DatasetRead.php.

Referenced by __construct().

$requester_ip = "" [private]

IP of the requester.

Definition at line 38 of file DatasetRead.php.

Referenced by __construct().

$solr_auto_commit = FALSE [protected, inherited]

Auto commit handled by the Solr data management systems. If this parameter is true, then this means Solr will handle the commit operation by itself. If it is false, then the web services will trigger the commit operations. Usually, Auto-commit should be handled by Solr when the size of the dataset is too big, otherwise operation such as delete could take much time.

Definition at line 107 of file WebService.php.

$solr_host = "localhost" [protected, inherited]

Hostname where to send queries to the Solr instance.

Definition at line 71 of file WebService.php.

$solr_port = "8983" [protected, inherited]

Port number where the Solr store server is reachable.

Definition at line 96 of file WebService.php.

$supportedSerializations [static]
Initial value:
    array ("application/json", "application/rdf+xml", "application/rdf+n3", "application/*", "text/xml", "text/*",
      "*/*")

Supported serialization mime types by this Web service.

Definition at line 59 of file DatasetRead.php.

Referenced by ws_conneg().

$title [protected, inherited]

The Title of the Authentication Registrar web service.

Definition at line 119 of file WebService.php.

Referenced by DatasetUpdate::__construct(), and process().

$track_create = FALSE [protected, inherited]

Enable the tracking of records changes from the Crud Create web service endpoint.

Definition at line 77 of file WebService.php.

$track_delete = FALSE [protected, inherited]

Enable the tracking of records changes from the Crud Delete web service endpoint.

Definition at line 83 of file WebService.php.

$track_update = FALSE [protected, inherited]

Enable the tracking of records changes from the Crud Update web service endpoint.

Definition at line 80 of file WebService.php.

$tracking_endpoint = "" [protected, inherited]

Specifies a specific WSF tracking web service endpoint URL to access the tracking endpoint. This is useful to put all the record changes tracking on a different, dedicated purposes, WSF server. If this parameter is commented, we will use the wsf_base_url to access the tracking endpoints. If it is uncommented, then we will use the endpoint specified by this parameter.

Definition at line 90 of file WebService.php.

$triplestore_port = "8890" [protected, inherited]

Port number where the triple store server is reachable.

Definition at line 93 of file WebService.php.

$uri [protected, inherited]

The URI of the Authentication Registrar web service.

Definition at line 116 of file WebService.php.

Referenced by DatasetUpdate::__construct(), __construct(), DatasetDelete::__construct(), DatasetCreate::__construct(), CrudRead::__construct(), CrudDelete::__construct(), ConverterBibtex::get_uri_label(), Sparql::getNamespace(), Search::getNamespace(), getNamespace(), CrudRead::getNamespace(), ConverterTsv::getNamespace(), ConverterIrJSON::getNamespace(), ConverterCommON::getNamespace(), Browse::getNamespace(), Sparql::pipeline_getResultset(), Search::pipeline_getResultset(), ConverterTsv::pipeline_getResultset(), ConverterIrJSON::pipeline_getResultset(), Browse::pipeline_getResultset(), ConverterIrJSON::pipeline_serialize(), Sparql::prefixToUri(), Search::process(), CrudUpdate::process(), CrudCreate::process(), Browse::process(), AuthRegistrarAccess::process(), uriEncode(), ConverterTsv::uriEncode(), ConverterIrJSON::uriEncode(), ConverterCommON::uriEncode(), ConverterBibtex::uriEncode(), and AuthRegistrarAccess::uriEncode().

$wsf_base_path = "" [protected, inherited]

Local server path of the WSF files.

Definition at line 59 of file WebService.php.

$wsf_base_url = "" [protected, inherited]

Base URL of the WSF.

Definition at line 56 of file WebService.php.

$wsf_graph = "" [protected, inherited]

The graph where the Web Services Framework description has been indexed.

Definition at line 53 of file WebService.php.

$wsf_local_ip = "" [protected, inherited]

Local server path of the WSF files.

Definition at line 62 of file WebService.php.

$wsf_solr_core = "" [protected, inherited]

The core to use for Solr; "" for no core.

Definition at line 65 of file WebService.php.

The documentation for this class was generated from the following file:
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