Date:   Mon, 25 Feb 2019 18:20:09 -0300
From:   Arnaldo Carvalho de Melo <acme@...nel.org>
To:     Ingo Molnar <mingo@...nel.org>
Cc:     Jiri Olsa <jolsa@...nel.org>, Namhyung Kim <namhyung@...nel.org>,
        Clark Williams <williams@...hat.com>,
        linux-kernel@...r.kernel.org, linux-perf-users@...r.kernel.org,
        Adrian Hunter <adrian.hunter@...el.com>,
        Jiri Olsa <jolsa@...hat.com>,
        Arnaldo Carvalho de Melo <acme@...hat.com>
Subject: [PATCH 11/37] perf scripts python: exported-sql-viewer.py: Create new dialog data item classes

From: Adrian Hunter <adrian.hunter@...el.com>

Create new dialog data item classes to replace SQLTableDialogDataItem.
This separates out different dialog data items and makes it easier to
add new ones. SQLTableDialogDataItem is removed in a separate patch
because it makes the diff more readable.

Signed-off-by: Adrian Hunter <adrian.hunter@...el.com>
Cc: Jiri Olsa <jolsa@...hat.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
 .../scripts/python/exported-sql-viewer.py     | 285 +++++++++++++++++-
 1 file changed, 272 insertions(+), 13 deletions(-)

diff --git a/tools/perf/scripts/python/exported-sql-viewer.py b/tools/perf/scripts/python/exported-sql-viewer.py
index ed39a0153dd3..63b14b80ebcd 100755
--- a/tools/perf/scripts/python/exported-sql-viewer.py
+++ b/tools/perf/scripts/python/exported-sql-viewer.py
@@ -1702,6 +1702,265 @@ class SQLTableDialogDataItem():
 			return False
 		return True
 
+# Line edit data item
+
+class LineEditDataItem(object):
+
+	def __init__(self, glb, label, placeholder_text, parent, id = ""):
+		self.glb = glb
+		self.label = label
+		self.placeholder_text = placeholder_text
+		self.parent = parent
+		self.id = id
+
+		self.value = ""
+
+		self.widget = QLineEdit()
+		self.widget.editingFinished.connect(self.Validate)
+		self.widget.textChanged.connect(self.Invalidate)
+		self.red = False
+		self.error = ""
+		self.validated = True
+
+		if placeholder_text:
+			self.widget.setPlaceholderText(placeholder_text)
+
+	def TurnTextRed(self):
+		if not self.red:
+			palette = QPalette()
+			palette.setColor(QPalette.Text,Qt.red)
+			self.widget.setPalette(palette)
+			self.red = True
+
+	def TurnTextNormal(self):
+		if self.red:
+			palette = QPalette()
+			self.widget.setPalette(palette)
+			self.red = False
+
+	def InvalidValue(self, value):
+		self.value = ""
+		self.TurnTextRed()
+		self.error = self.label + " invalid value '" + value + "'"
+		self.parent.ShowMessage(self.error)
+
+	def Invalidate(self):
+		self.validated = False
+
+	def DoValidate(self, input_string):
+		self.value = input_string.strip()
+
+	def Validate(self):
+		self.validated = True
+		self.error = ""
+		self.TurnTextNormal()
+		self.parent.ClearMessage()
+		input_string = self.widget.text()
+		if not len(input_string.strip()):
+			self.value = ""
+			return
+		self.DoValidate(input_string)
+
+	def IsValid(self):
+		if not self.validated:
+			self.Validate()
+		if len(self.error):
+			self.parent.ShowMessage(self.error)
+			return False
+		return True
+
+	def IsNumber(self, value):
+		try:
+			x = int(value)
+		except:
+			x = 0
+		return str(x) == value
+
+# Non-negative integer ranges dialog data item
+
+class NonNegativeIntegerRangesDataItem(LineEditDataItem):
+
+	def __init__(self, glb, label, placeholder_text, column_name, parent):
+		super(NonNegativeIntegerRangesDataItem, self).__init__(glb, label, placeholder_text, parent)
+
+		self.column_name = column_name
+
+	def DoValidate(self, input_string):
+		singles = []
+		ranges = []
+		for value in [x.strip() for x in input_string.split(",")]:
+			if "-" in value:
+				vrange = value.split("-")
+				if len(vrange) != 2 or not self.IsNumber(vrange[0]) or not self.IsNumber(vrange[1]):
+					return self.InvalidValue(value)
+				ranges.append(vrange)
+			else:
+				if not self.IsNumber(value):
+					return self.InvalidValue(value)
+				singles.append(value)
+		ranges = [("(" + self.column_name + " >= " + r[0] + " AND " + self.column_name + " <= " + r[1] + ")") for r in ranges]
+		if len(singles):
+			ranges.append(self.column_name + " IN (" + ",".join(singles) + ")")
+		self.value = " OR ".join(ranges)
+
+# Dialog data item converted and validated using a SQL table
+
+class SQLTableDataItem(LineEditDataItem):
+
+	def __init__(self, glb, label, placeholder_text, table_name, match_column, column_name1, column_name2, parent):
+		super(SQLTableDataItem, self).__init__(glb, label, placeholder_text, parent)
+
+		self.table_name = table_name
+		self.match_column = match_column
+		self.column_name1 = column_name1
+		self.column_name2 = column_name2
+
+	def ValueToIds(self, value):
+		ids = []
+		query = QSqlQuery(self.glb.db)
+		stmt = "SELECT id FROM " + self.table_name + " WHERE " + self.match_column + " = '" + value + "'"
+		ret = query.exec_(stmt)
+		if ret:
+			while query.next():
+				ids.append(str(query.value(0)))
+		return ids
+
+	def DoValidate(self, input_string):
+		all_ids = []
+		for value in [x.strip() for x in input_string.split(",")]:
+			ids = self.ValueToIds(value)
+			if len(ids):
+				all_ids.extend(ids)
+			else:
+				return self.InvalidValue(value)
+		self.value = self.column_name1 + " IN (" + ",".join(all_ids) + ")"
+		if self.column_name2:
+			self.value = "( " + self.value + " OR " + self.column_name2 + " IN (" + ",".join(all_ids) + ") )"
+
+# Sample time ranges dialog data item converted and validated using 'samples' SQL table
+
+class SampleTimeRangesDataItem(LineEditDataItem):
+
+	def __init__(self, glb, label, placeholder_text, column_name, parent):
+		self.column_name = column_name
+
+		self.last_id = 0
+		self.first_time = 0
+		self.last_time = 2 ** 64
+
+		query = QSqlQuery(glb.db)
+		QueryExec(query, "SELECT id, time FROM samples ORDER BY id DESC LIMIT 1")
+		if query.next():
+			self.last_id = int(query.value(0))
+			self.last_time = int(query.value(1))
+		QueryExec(query, "SELECT time FROM samples WHERE time != 0 ORDER BY id LIMIT 1")
+		if query.next():
+			self.first_time = int(query.value(0))
+		if placeholder_text:
+			placeholder_text += ", between " + str(self.first_time) + " and " + str(self.last_time)
+
+		super(SampleTimeRangesDataItem, self).__init__(glb, label, placeholder_text, parent)
+
+	def IdBetween(self, query, lower_id, higher_id, order):
+		QueryExec(query, "SELECT id FROM samples WHERE id > " + str(lower_id) + " AND id < " + str(higher_id) + " ORDER BY id " + order + " LIMIT 1")
+		if query.next():
+			return True, int(query.value(0))
+		else:
+			return False, 0
+
+	def BinarySearchTime(self, lower_id, higher_id, target_time, get_floor):
+		query = QSqlQuery(self.glb.db)
+		while True:
+			next_id = int((lower_id + higher_id) / 2)
+			QueryExec(query, "SELECT time FROM samples WHERE id = " + str(next_id))
+			if not query.next():
+				ok, dbid = self.IdBetween(query, lower_id, next_id, "DESC")
+				if not ok:
+					ok, dbid = self.IdBetween(query, next_id, higher_id, "")
+					if not ok:
+						return str(higher_id)
+				next_id = dbid
+				QueryExec(query, "SELECT time FROM samples WHERE id = " + str(next_id))
+			next_time = int(query.value(0))
+			if get_floor:
+				if target_time > next_time:
+					lower_id = next_id
+				else:
+					higher_id = next_id
+				if higher_id <= lower_id + 1:
+					return str(higher_id)
+			else:
+				if target_time >= next_time:
+					lower_id = next_id
+				else:
+					higher_id = next_id
+				if higher_id <= lower_id + 1:
+					return str(lower_id)
+
+	def ConvertRelativeTime(self, val):
+		mult = 1
+		suffix = val[-2:]
+		if suffix == "ms":
+			mult = 1000000
+		elif suffix == "us":
+			mult = 1000
+		elif suffix == "ns":
+			mult = 1
+		else:
+			return val
+		val = val[:-2].strip()
+		if not self.IsNumber(val):
+			return val
+		val = int(val) * mult
+		if val >= 0:
+			val += self.first_time
+		else:
+			val += self.last_time
+		return str(val)
+
+	def ConvertTimeRange(self, vrange):
+		if vrange[0] == "":
+			vrange[0] = str(self.first_time)
+		if vrange[1] == "":
+			vrange[1] = str(self.last_time)
+		vrange[0] = self.ConvertRelativeTime(vrange[0])
+		vrange[1] = self.ConvertRelativeTime(vrange[1])
+		if not self.IsNumber(vrange[0]) or not self.IsNumber(vrange[1]):
+			return False
+		beg_range = max(int(vrange[0]), self.first_time)
+		end_range = min(int(vrange[1]), self.last_time)
+		if beg_range > self.last_time or end_range < self.first_time:
+			return False
+		vrange[0] = self.BinarySearchTime(0, self.last_id, beg_range, True)
+		vrange[1] = self.BinarySearchTime(1, self.last_id + 1, end_range, False)
+		return True
+
+	def AddTimeRange(self, value, ranges):
+		n = value.count("-")
+		if n == 1:
+			pass
+		elif n == 2:
+			if value.split("-")[1].strip() == "":
+				n = 1
+		elif n == 3:
+			n = 2
+		else:
+			return False
+		pos = findnth(value, "-", n)
+		vrange = [value[:pos].strip() ,value[pos+1:].strip()]
+		if self.ConvertTimeRange(vrange):
+			ranges.append(vrange)
+			return True
+		return False
+
+	def DoValidate(self, input_string):
+		ranges = []
+		for value in [x.strip() for x in input_string.split(",")]:
+			if not self.AddTimeRange(value, ranges):
+				return self.InvalidValue(value)
+		ranges = [("(" + self.column_name + " >= " + r[0] + " AND " + self.column_name + " <= " + r[1] + ")") for r in ranges]
+		self.value = " OR ".join(ranges)
+
 # Report Dialog Base
 
 class ReportDialogBase(QDialog):
@@ -1716,7 +1975,7 @@ class ReportDialogBase(QDialog):
 		self.setWindowTitle(title)
 		self.setMinimumWidth(600)
 
-		self.data_items = [SQLTableDialogDataItem(glb, *x, parent=self) for x in items]
+		self.data_items = [x(glb, self) for x in items]
 
 		self.partial = partial
 
@@ -1751,7 +2010,9 @@ class ReportDialogBase(QDialog):
 
 	def Ok(self):
 		vars = self.report_vars
-		vars.name = self.data_items[0].value
+		for d in self.data_items:
+			if d.id == "REPORTNAME":
+				vars.name = d.value
 		if not vars.name:
 			self.ShowMessage("Report name is required")
 			return
@@ -1785,17 +2046,15 @@ class SelectedBranchDialog(ReportDialogBase):
 
 	def __init__(self, glb, parent=None):
 		title = "Selected Branches"
-		items = (
-			("Report name:", "Enter a name to appear in the window title bar", "", "", "", ""),
-			("Time ranges:", "Enter time ranges", "<timeranges>", "", "samples.id", ""),
-			("CPUs:", "Enter CPUs or ranges e.g. 0,5-6", "<ranges>", "", "cpu", ""),
-			("Commands:", "Only branches with these commands will be included", "comms", "comm", "comm_id", ""),
-			("PIDs:", "Only branches with these process IDs will be included", "threads", "pid", "thread_id", ""),
-			("TIDs:", "Only branches with these thread IDs will be included", "threads", "tid", "thread_id", ""),
-			("DSOs:", "Only branches with these DSOs will be included", "dsos", "short_name", "samples.dso_id", "to_dso_id"),
-			("Symbols:", "Only branches with these symbols will be included", "symbols", "name", "symbol_id", "to_symbol_id"),
-			("Raw SQL clause: ", "Enter a raw SQL WHERE clause", "", "", "", ""),
-			)
+		items = (lambda g, p: LineEditDataItem(g, "Report name:", "Enter a name to appear in the window title bar", p, "REPORTNAME"),
+			 lambda g, p: SampleTimeRangesDataItem(g, "Time ranges:", "Enter time ranges", "samples.id", p),
+			 lambda g, p: NonNegativeIntegerRangesDataItem(g, "CPUs:", "Enter CPUs or ranges e.g. 0,5-6", "cpu", p),
+			 lambda g, p: SQLTableDataItem(g, "Commands:", "Only branches with these commands will be included", "comms", "comm", "comm_id", "", p),
+			 lambda g, p: SQLTableDataItem(g, "PIDs:", "Only branches with these process IDs will be included", "threads", "pid", "thread_id", "", p),
+			 lambda g, p: SQLTableDataItem(g, "TIDs:", "Only branches with these thread IDs will be included", "threads", "tid", "thread_id", "", p),
+			 lambda g, p: SQLTableDataItem(g, "DSOs:", "Only branches with these DSOs will be included", "dsos", "short_name", "samples.dso_id", "to_dso_id", p),
+			 lambda g, p: SQLTableDataItem(g, "Symbols:", "Only branches with these symbols will be included", "symbols", "name", "symbol_id", "to_symbol_id", p),
+			 lambda g, p: LineEditDataItem(g, "Raw SQL clause: ", "Enter a raw SQL WHERE clause", p))
 		super(SelectedBranchDialog, self).__init__(glb, title, items, True, parent)
 
 # Event list
-- 
2.20.1

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