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R/ExtractorYtbid.R
In bdpar: Big Data Preprocessing Architecture
#
# Bdpar provide a tool to easily build customized data flows to pre-process
# large volumes of information from different sources. To this end, bdpar allows
# to (i) easily use and create new functionalities and (ii) develop new data
# source extractors according to the user needs. Additionally, the package
# provides by default a predefined data flow to extract and preprocess the most
# relevant information (tokens, dates, ... ) from some textual sources (SMS,
# email, tweets, YouTube comments).
#
# Copyright (C) 2020-2022 Sing Group (University of Vigo)
#
# This program is free software: you can redistribute it and/or modify it under
# the terms of the GNU General Public License as published by the Free Software
# Foundation, either version 3 of the License, or (at your option) any later
# version.
#
# This program is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along with
# this program. If not, see <https://www.gnu.org/licenses/gpl-3.0.html>
#' @title Class to handle comments of YouTube files with ytbid extension
#'
#' @description This class inherits from the \code{\link{Instance}} class and
#' implements the functions of extracting the text and the date of an ytbid type file.
#'
#' @section Details:
#' YouTube connection is handled through the \code{\link{Connections}} class
#' which loads the YouTube API credentials from the \emph{{bdpar.Options}} object.
#' Additionally, to increase the processing speed, each Youtube query is stored
#' in a cache to avoid the execution of duplicated queries. To enable this option,
#' cache location should be in the \strong{"cache.youtube.path"} field of
#' \emph{\link{bdpar.Options}} variable. This variable has to be the
#' path to store the comments and it is necessary that it has two folder named:
#' "_spam_" and "_ham_"
#'
#' @section Inherit:
#' This class inherits from \code{\link{Instance}} and implements the
#' \code{obtainSource} and \code{obtainDate} abstracts functions.
#'
#' @seealso \code{\link{bdpar.Options}}, \code{\link{Connections}},
#' \code{\link{ExtractorEml}}, \code{\link{ExtractorSms}},
#' \code{\link{ExtractorTwtid}}, \code{\link{Instance}}
#'
#' @keywords NULL
#'
#' @import R6
#' @export ExtractorYtbid
ExtractorYtbid <- R6Class(
classname = "ExtractorYtbid",
inherit = Instance,
public = list(
#'
#' @description Creates a \code{\link{ExtractorYtbid}} object.
#'
#' @param path A \code{\link{character}} value. Path of the ytbid file.
#' @param cachePath A \code{\link{character}} value. Path of the cache
#' location. If it is NULL, checks if is defined in the
#' \strong{"cache.youtube.path"} field of \code{\link{bdpar.Options}}
#' variable.
#'
initialize = function(path,
cachePath = NULL) {
if (!"character" %in% class(path)) {
bdpar.log(message = paste0("Checking the type of the 'path' variable: ",
class(path)),
level = "FATAL",
className = class(self)[1],
methodName = "initialize")
}
super$initialize(path)
self$obtainId()
#Singleton
Bdpar[["private_methods"]][["connections"]]()$startConnectionWithYoutube()
if (is.null(cachePath)) {
if (!bdpar.Options$isSpecificOption("cache.youtube.path") ||
is.null(bdpar.Options$get("cache.youtube.path"))) {
bdpar.log(message = paste0("Path of YouTube comments' cache is ",
"neither defined in initialize or in bdpar.Options"),
level = "FATAL",
className = class(self)[1],
methodName = "initialize")
} else {
cachePath <- bdpar.Options$get("cache.youtube.path")
}
}
if (!"character" %in% class(cachePath)) {
bdpar.log(message = paste0("Checking the type of the 'cachePath' variable: ",
class(cachePath)),
level = "FATAL",
className = class(self)[1],
methodName = "initialize")
}
private$cachePath <- cachePath
},
#'
#' @description Obtains the ID of the specific Youtube's comment. Reads the ID
#' of the file indicated in the variable path.
#'
obtainId = function() {
private$id <- readLines(super$getPath(), warn = FALSE, n = 1)
},
#'
#' @description Gets the ID of an specific Youtube's comment.
#'
#' @return Value of Youtube's comment ID.
#'
getId = function() {
private$id
},
#'
#' @description Obtains the date from a specific comment ID. If the comment
#' has been previously cached the comment date is loaded from cache path.
#' Otherwise, the request is perfomed using YouTube API and the date is then
#' formatted to the established standard.
#'
obtainDate = function() {
if (file.exists(
paste(
private$cachePath,
"/_",
super$getSpecificProperty("target"),
"_/",
self$getId(),
".json",
sep = ""
)
)) {
private$path <-
paste(
private$cachePath,
"/_",
super$getSpecificProperty("target"),
"_/",
self$getId(),
".json",
sep = ""
)
dataFromJsonFile <- rjson::fromJSON(file = super$getPath())
if (!is.na(dataFromJsonFile[["date"]]) &&
!is.null(dataFromJsonFile[["date"]]) &&
dataFromJsonFile[["date"]] != "") {
super$setDate(dataFromJsonFile[["date"]])
return()
}
}
if (super$getDate() == "") {
dateYtbid <- ""
sourceYtbid <- ""
Bdpar[["private_methods"]][["connections"]]()$checkRequestToYoutube()
comment <- tryCatch(
tuber::get_comments(
filter = c(comment_id = self$getId()),
textFormat = "plainText"
),
warning = function(w) {
bdpar.log(message = paste0("Date ytbid warning: ", self$getId(),
" ", paste(w)),
level = "WARN",
className = class(self)[1],
methodName = "obtainDate")
},
error = function(e) {
bdpar.log(message = paste0("Date ytbid error: ", self$getId(),
" ", paste(w)),
level = "ERROR",
className = class(self)[1],
methodName = "obtainDate")
}
)
}
Bdpar[["private_methods"]][["connections"]]()$addNumRequestToYoutube()
if (!is.null(comment) && is.data.frame(comment)) {
dateYtbid <- levels(comment[["publishedAt"]][["publishedAt"]])
sourceYtbid <- levels(comment[["textDisplay"]][["textDisplay"]])
} else {
dateYtbid <- ""
sourceYtbid <- ""
}
if (dateYtbid != "") {
dateYtbid <- paste(substring(dateYtbid, 0, 10),
substring(dateYtbid, 12, nchar(dateYtbid)),
" ")
StandardizedDate <- tryCatch(
as.POSIXct(dateYtbid),
warning = function(w) {
bdpar.log(message = paste0("Date ytbid warning as.POSIXct: ",
self$getId(), " ", paste(w)),
level = "WARN",
className = class(self)[1],
methodName = "obtainDate")
},
error = function(e) {
bdpar.log(message = paste0("Date ytbid error as.POSIXct: ",
self$getId(), " ", paste(e)),
level = "ERROR",
className = class(self)[1],
methodName = "obtainDate")
}
)
formatDateGeneric <- "%a %b %d %H:%M:%S %Z %Y"
super$setDate(as.character(format(StandardizedDate,
formatDateGeneric)))
} else {
super$setDate("")
sourceYtbid <- ""
}
lista <- list(source = sourceYtbid,
date = super$getDate())
tryCatch({
exportJSON <- rjson::toJSON(lista)
cat(
exportJSON,
file = paste(
private$cachePath,
"/_",
super$getSpecificProperty("target"),
"_/",
self$getId(),
".json",
sep = ""
),
sep = "\n"
)
},
error = function(e) {
bdpar.log(message = paste0("exportJSON: ", self$getId(),
" " , paste(e)),
level = "ERROR",
className = class(self)[1],
methodName = "obtainDate")
lista <- list(source = "",
date = super$getDate())
exportJSON <- rjson::toJSON(lista)
cat(
exportJSON,
file = paste(
private$cachePath,
"/_",
super$getSpecificProperty("target"),
"_/",
self$getId(),
".json",
sep = ""
),
sep = "\n"
)
})
},
#'
#' @description Obtains the source from a specific comment ID. If the
#' comment has previously been cached the source is loaded from cache path.
#' Otherwise, the request is performed using on YouTube API.
#'
obtainSource = function() {
if (file.exists(
paste(
private$cachePath,
"/_",
super$getSpecificProperty("target"),
"_/",
self$getId(),
".json",
sep = ""
)
)) {
private$path <-
paste(
private$cachePath,
"/_",
super$getSpecificProperty("target"),
"_/",
self$getId(),
".json",
sep = ""
)
dataFromJsonFile <- rjson::fromJSON(file = super$getPath())
if (!is.na(dataFromJsonFile[["source"]]) &&
!is.null(dataFromJsonFile[["source"]]) &&
dataFromJsonFile[["source"]] != "") {
super$setSource(dataFromJsonFile[["source"]])
super$setData(super$getSource())
return()
}
}
if (super$getSource() == "") {
dateYtbid <- ""
sourceYtbid <- ""
Bdpar[["private_methods"]][["connections"]]()$checkRequestToYoutube()
comment <- tryCatch(
tuber::get_comments(
filter = c(comment_id = self$getId()),
textFormat = "plainText"
),
warning = function(w) {
bdpar.log(message = paste0("Source ytbid warning: ",
self$getId(), " ", paste(w)),
level = "WARN",
className = class(self)[1],
methodName = "obtainDate")
},
error = function(e) {
bdpar.log(message = paste0("Source ytbid error: ",
self$getId(), " ", paste(e)),
level = "ERROR",
className = class(self)[1],
methodName = "obtainSource")
}
)
}
Bdpar[["private_methods"]][["connections"]]()$addNumRequestToYoutube()
if (!is.null(comment) && is.data.frame(comment)) {
dateYtbid <- levels(comment[["publishedAt"]][["publishedAt"]])
sourceYtbid <- levels(comment[["textDisplay"]][["textDisplay"]])
} else {
dateYtbid <- ""
sourceYtbid <- ""
}
if (dateYtbid != "") {
dateYtbid <- paste(substring(dateYtbid, 0, 10),
substring(dateYtbid, 12, nchar(dateYtbid)),
" ")
StandardizedDate <- tryCatch(
as.POSIXct(dateYtbid),
warning = function(w) {
bdpar.log(message = paste0("Date ytbid warning as.POSIXct: ",
self$getId(), " " , paste(w)),
level = "WARN",
className = class(self)[1],
methodName = "obtainSource")
},
error = function(e) {
bdpar.log(message = paste0("Date ytbid error as.POSIXct: ",
self$getId(), " " , paste(e)),
level = "ERROR",
className = class(self)[1],
methodName = "obtainSource")
}
)
formatDateGeneric <- "%a %b %d %H:%M:%S %Z %Y"
dateYtbid <- as.character(format(StandardizedDate,
formatDateGeneric))
}
super$setSource(sourceYtbid)
super$setData(super$getSource())
lista <- list(source = super$getSource(),
date = dateYtbid)
tryCatch({
exportJSON <- rjson::toJSON(lista)
cat(
exportJSON,
file = paste(
private$cachePath,
"/_",
super$getSpecificProperty("target"),
"_/",
self$getId(),
".json",
sep = ""
),
sep = "\n"
)
},
error = function(e) {
bdpar.log(message = paste0("exportJSON: ",
self$getId(), " " , paste(e)),
level = "ERROR",
className = class(self)[1],
methodName = "obtainSource")
lista <- list(source = "", date = dateYtbid)
exportJSON <- rjson::toJSON(lista)
cat(
exportJSON,
file = paste(
private$cachePath,
"/_",
super$getSpecificProperty("target"),
"_/",
self$getId(),
".json",
sep = ""
),
sep = "\n"
)
})
},
#'
#' @description Returns a \code{\link{character}} representing the instance
#'
#' @return \code{\link{Instance}} \code{\link{character}} representation
#'
toString = function() {
toRet <- paste0("\tPath: ", as.character(private$path),
"\n\tDate: ", as.character(private$date),
"\n\tIsValid: ", as.character(private$isValid),
"\n\tSource: \"", as.character(private$source), "\"",
"\n\tData: \"", as.character(private$data), "\"",
"\n\tFlowPipes: ", paste(as.character(unlist(private$flowPipes)), collapse = " "),
"\n\tBanPipes: ", paste(as.character(unlist(private$banPipes)), collapse = " "),
"\n\tProperties: ")
properties <- ""
if (length(private$properties) != 0) {
properties <- "\n\t\t"
properties <- paste0(properties, paste0(lapply(names(private$properties), function(propertyName) {
paste0("- ", propertyName, ": ",
paste(as.character(unlist(private$properties[[propertyName]])), collapse = " "),
collapse = "")
}), collapse = "\n\t\t"))
} else {
properties <- "Not located"
}
toRet <- paste0(toRet, properties, "\n")
toRet
}
),
private = list(
# A \code{\link{character}} value. ID of Youtube's comment.
id = "",
# A \code{\link{character}} value. Path of the cache location. If it is NULL,
# checks if is defined in the \strong{"cache.youtube.path"} field of
# \emph{\link{bdpar.Options}} variable.
cachePath = ""
)
)
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#
# Bdpar provide a tool to easily build customized data flows to pre-process
# large volumes of information from different sources. To this end, bdpar allows
# to (i) easily use and create new functionalities and (ii) develop new data
# source extractors according to the user needs. Additionally, the package
# provides by default a predefined data flow to extract and preprocess the most
# relevant information (tokens, dates, ... ) from some textual sources (SMS,
# email, tweets, YouTube comments).
#
# Copyright (C) 2020-2022 Sing Group (University of Vigo)
#
# This program is free software: you can redistribute it and/or modify it under
# the terms of the GNU General Public License as published by the Free Software
# Foundation, either version 3 of the License, or (at your option) any later
# version.
#
# This program is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along with
# this program. If not, see <https://www.gnu.org/licenses/gpl-3.0.html>
#' @title Class to handle comments of YouTube files with ytbid extension
#'
#' @description This class inherits from the \code{\link{Instance}} class and
#' implements the functions of extracting the text and the date of an ytbid type file.
#'
#' @section Details:
#' YouTube connection is handled through the \code{\link{Connections}} class
#' which loads the YouTube API credentials from the \emph{{bdpar.Options}} object.
#' Additionally, to increase the processing speed, each Youtube query is stored
#' in a cache to avoid the execution of duplicated queries. To enable this option,
#' cache location should be in the \strong{"cache.youtube.path"} field of
#' \emph{\link{bdpar.Options}} variable. This variable has to be the
#' path to store the comments and it is necessary that it has two folder named:
#' "_spam_" and "_ham_"
#'
#' @section Inherit:
#' This class inherits from \code{\link{Instance}} and implements the
#' \code{obtainSource} and \code{obtainDate} abstracts functions.
#'
#' @seealso \code{\link{bdpar.Options}}, \code{\link{Connections}},
#' \code{\link{ExtractorEml}}, \code{\link{ExtractorSms}},
#' \code{\link{ExtractorTwtid}}, \code{\link{Instance}}
#'
#' @keywords NULL
#'
#' @import R6
#' @export ExtractorYtbid
ExtractorYtbid <- R6Class(
classname = "ExtractorYtbid",
inherit = Instance,
public = list(
#'
#' @description Creates a \code{\link{ExtractorYtbid}} object.
#'
#' @param path A \code{\link{character}} value. Path of the ytbid file.
#' @param cachePath A \code{\link{character}} value. Path of the cache
#' location. If it is NULL, checks if is defined in the
#' \strong{"cache.youtube.path"} field of \code{\link{bdpar.Options}}
#' variable.
#'
initialize = function(path,
cachePath = NULL) {
if (!"character" %in% class(path)) {
bdpar.log(message = paste0("Checking the type of the 'path' variable: ",
class(path)),
level = "FATAL",
className = class(self)[1],
methodName = "initialize")
}
super$initialize(path)
self$obtainId()
#Singleton
Bdpar[["private_methods"]][["connections"]]()$startConnectionWithYoutube()
if (is.null(cachePath)) {
if (!bdpar.Options$isSpecificOption("cache.youtube.path") ||
is.null(bdpar.Options$get("cache.youtube.path"))) {
bdpar.log(message = paste0("Path of YouTube comments' cache is ",
"neither defined in initialize or in bdpar.Options"),
level = "FATAL",
className = class(self)[1],
methodName = "initialize")
} else {
cachePath <- bdpar.Options$get("cache.youtube.path")
}
}
if (!"character" %in% class(cachePath)) {
bdpar.log(message = paste0("Checking the type of the 'cachePath' variable: ",
class(cachePath)),
level = "FATAL",
className = class(self)[1],
methodName = "initialize")
}
private$cachePath <- cachePath
},
#'
#' @description Obtains the ID of the specific Youtube's comment. Reads the ID
#' of the file indicated in the variable path.
#'
obtainId = function() {
private$id <- readLines(super$getPath(), warn = FALSE, n = 1)
},
#'
#' @description Gets the ID of an specific Youtube's comment.
#'
#' @return Value of Youtube's comment ID.
#'
getId = function() {
private$id
},
#'
#' @description Obtains the date from a specific comment ID. If the comment
#' has been previously cached the comment date is loaded from cache path.
#' Otherwise, the request is perfomed using YouTube API and the date is then
#' formatted to the established standard.
#'
obtainDate = function() {
if (file.exists(
paste(
private$cachePath,
"/_",
super$getSpecificProperty("target"),
"_/",
self$getId(),
".json",
sep = ""
)
)) {
private$path <-
paste(
private$cachePath,
"/_",
super$getSpecificProperty("target"),
"_/",
self$getId(),
".json",
sep = ""
)
dataFromJsonFile <- rjson::fromJSON(file = super$getPath())
if (!is.na(dataFromJsonFile[["date"]]) &&
!is.null(dataFromJsonFile[["date"]]) &&
dataFromJsonFile[["date"]] != "") {
super$setDate(dataFromJsonFile[["date"]])
return()
}
}
if (super$getDate() == "") {
dateYtbid <- ""
sourceYtbid <- ""
Bdpar[["private_methods"]][["connections"]]()$checkRequestToYoutube()
comment <- tryCatch(
tuber::get_comments(
filter = c(comment_id = self$getId()),
textFormat = "plainText"
),
warning = function(w) {
bdpar.log(message = paste0("Date ytbid warning: ", self$getId(),
" ", paste(w)),
level = "WARN",
className = class(self)[1],
methodName = "obtainDate")
},
error = function(e) {
bdpar.log(message = paste0("Date ytbid error: ", self$getId(),
" ", paste(w)),
level = "ERROR",
className = class(self)[1],
methodName = "obtainDate")
}
)
}
Bdpar[["private_methods"]][["connections"]]()$addNumRequestToYoutube()
if (!is.null(comment) && is.data.frame(comment)) {
dateYtbid <- levels(comment[["publishedAt"]][["publishedAt"]])
sourceYtbid <- levels(comment[["textDisplay"]][["textDisplay"]])
} else {
dateYtbid <- ""
sourceYtbid <- ""
}
if (dateYtbid != "") {
dateYtbid <- paste(substring(dateYtbid, 0, 10),
substring(dateYtbid, 12, nchar(dateYtbid)),
" ")
StandardizedDate <- tryCatch(
as.POSIXct(dateYtbid),
warning = function(w) {
bdpar.log(message = paste0("Date ytbid warning as.POSIXct: ",
self$getId(), " ", paste(w)),
level = "WARN",
className = class(self)[1],
methodName = "obtainDate")
},
error = function(e) {
bdpar.log(message = paste0("Date ytbid error as.POSIXct: ",
self$getId(), " ", paste(e)),
level = "ERROR",
className = class(self)[1],
methodName = "obtainDate")
}
)
formatDateGeneric <- "%a %b %d %H:%M:%S %Z %Y"
super$setDate(as.character(format(StandardizedDate,
formatDateGeneric)))
} else {
super$setDate("")
sourceYtbid <- ""
}
lista <- list(source = sourceYtbid,
date = super$getDate())
tryCatch({
exportJSON <- rjson::toJSON(lista)
cat(
exportJSON,
file = paste(
private$cachePath,
"/_",
super$getSpecificProperty("target"),
"_/",
self$getId(),
".json",
sep = ""
),
sep = "\n"
)
},
error = function(e) {
bdpar.log(message = paste0("exportJSON: ", self$getId(),
" " , paste(e)),
level = "ERROR",
className = class(self)[1],
methodName = "obtainDate")
lista <- list(source = "",
date = super$getDate())
exportJSON <- rjson::toJSON(lista)
cat(
exportJSON,
file = paste(
private$cachePath,
"/_",
super$getSpecificProperty("target"),
"_/",
self$getId(),
".json",
sep = ""
),
sep = "\n"
)
})
},
#'
#' @description Obtains the source from a specific comment ID. If the
#' comment has previously been cached the source is loaded from cache path.
#' Otherwise, the request is performed using on YouTube API.
#'
obtainSource = function() {
if (file.exists(
paste(
private$cachePath,
"/_",
super$getSpecificProperty("target"),
"_/",
self$getId(),
".json",
sep = ""
)
)) {
private$path <-
paste(
private$cachePath,
"/_",
super$getSpecificProperty("target"),
"_/",
self$getId(),
".json",
sep = ""
)
dataFromJsonFile <- rjson::fromJSON(file = super$getPath())
if (!is.na(dataFromJsonFile[["source"]]) &&
!is.null(dataFromJsonFile[["source"]]) &&
dataFromJsonFile[["source"]] != "") {
super$setSource(dataFromJsonFile[["source"]])
super$setData(super$getSource())
return()
}
}
if (super$getSource() == "") {
dateYtbid <- ""
sourceYtbid <- ""
Bdpar[["private_methods"]][["connections"]]()$checkRequestToYoutube()
comment <- tryCatch(
tuber::get_comments(
filter = c(comment_id = self$getId()),
textFormat = "plainText"
),
warning = function(w) {
bdpar.log(message = paste0("Source ytbid warning: ",
self$getId(), " ", paste(w)),
level = "WARN",
className = class(self)[1],
methodName = "obtainDate")
},
error = function(e) {
bdpar.log(message = paste0("Source ytbid error: ",
self$getId(), " ", paste(e)),
level = "ERROR",
className = class(self)[1],
methodName = "obtainSource")
}
)
}
Bdpar[["private_methods"]][["connections"]]()$addNumRequestToYoutube()
if (!is.null(comment) && is.data.frame(comment)) {
dateYtbid <- levels(comment[["publishedAt"]][["publishedAt"]])
sourceYtbid <- levels(comment[["textDisplay"]][["textDisplay"]])
} else {
dateYtbid <- ""
sourceYtbid <- ""
}
if (dateYtbid != "") {
dateYtbid <- paste(substring(dateYtbid, 0, 10),
substring(dateYtbid, 12, nchar(dateYtbid)),
" ")
StandardizedDate <- tryCatch(
as.POSIXct(dateYtbid),
warning = function(w) {
bdpar.log(message = paste0("Date ytbid warning as.POSIXct: ",
self$getId(), " " , paste(w)),
level = "WARN",
className = class(self)[1],
methodName = "obtainSource")
},
error = function(e) {
bdpar.log(message = paste0("Date ytbid error as.POSIXct: ",
self$getId(), " " , paste(e)),
level = "ERROR",
className = class(self)[1],
methodName = "obtainSource")
}
)
formatDateGeneric <- "%a %b %d %H:%M:%S %Z %Y"
dateYtbid <- as.character(format(StandardizedDate,
formatDateGeneric))
}
super$setSource(sourceYtbid)
super$setData(super$getSource())
lista <- list(source = super$getSource(),
date = dateYtbid)
tryCatch({
exportJSON <- rjson::toJSON(lista)
cat(
exportJSON,
file = paste(
private$cachePath,
"/_",
super$getSpecificProperty("target"),
"_/",
self$getId(),
".json",
sep = ""
),
sep = "\n"
)
},
error = function(e) {
bdpar.log(message = paste0("exportJSON: ",
self$getId(), " " , paste(e)),
level = "ERROR",
className = class(self)[1],
methodName = "obtainSource")
lista <- list(source = "", date = dateYtbid)
exportJSON <- rjson::toJSON(lista)
cat(
exportJSON,
file = paste(
private$cachePath,
"/_",
super$getSpecificProperty("target"),
"_/",
self$getId(),
".json",
sep = ""
),
sep = "\n"
)
})
},
#'
#' @description Returns a \code{\link{character}} representing the instance
#'
#' @return \code{\link{Instance}} \code{\link{character}} representation
#'
toString = function() {
toRet <- paste0("\tPath: ", as.character(private$path),
"\n\tDate: ", as.character(private$date),
"\n\tIsValid: ", as.character(private$isValid),
"\n\tSource: \"", as.character(private$source), "\"",
"\n\tData: \"", as.character(private$data), "\"",
"\n\tFlowPipes: ", paste(as.character(unlist(private$flowPipes)), collapse = " "),
"\n\tBanPipes: ", paste(as.character(unlist(private$banPipes)), collapse = " "),
"\n\tProperties: ")
properties <- ""
if (length(private$properties) != 0) {
properties <- "\n\t\t"
properties <- paste0(properties, paste0(lapply(names(private$properties), function(propertyName) {
paste0("- ", propertyName, ": ",
paste(as.character(unlist(private$properties[[propertyName]])), collapse = " "),
collapse = "")
}), collapse = "\n\t\t"))
} else {
properties <- "Not located"
}
toRet <- paste0(toRet, properties, "\n")
toRet
}
),
private = list(
# A \code{\link{character}} value. ID of Youtube's comment.
id = "",
# A \code{\link{character}} value. Path of the cache location. If it is NULL,
# checks if is defined in the \strong{"cache.youtube.path"} field of
# \emph{\link{bdpar.Options}} variable.
cachePath = ""
)
)
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