1 files changed, 137 insertions, 0 deletions
diff --git a/third_party/influxdb/influxdb_line_protocol.py b/third_party/influxdb/influxdb_line_protocol.py
new file mode 100644
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+++ b/third_party/influxdb/influxdb_line_protocol.py
@@ -0,0 +1,137 @@
+# The MIT License (MIT)
+
+# Copyright (c) 2013 InfluxDB
+
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in
+# the Software without restriction, including without limitation the rights to
+# use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+# of the Software, and to permit persons to whom the Software is furnished to
+# do so, subject to the following conditions:
+
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+
+# yardstick comment: this file is a modified copy of
+# influxdb-python/influxdb/line_protocol.py
+
+from __future__ import unicode_literals
+from copy import copy
+
+from six import binary_type, text_type, integer_types
+
+
+def _escape_tag(tag):
+    tag = _get_unicode(tag, force=True)
+    return tag.replace(
+        "\\", "\\\\"
+    ).replace(
+        " ", "\\ "
+    ).replace(
+        ",", "\\,"
+    ).replace(
+        "=", "\\="
+    )
+
+
+def _escape_value(value):
+    value = _get_unicode(value)
+    if isinstance(value, text_type) and value != '':
+        return "\"{}\"".format(
+            value.replace(
+                "\"", "\\\""
+            ).replace(
+                "\n", "\\n"
+            )
+        )
+    elif isinstance(value, integer_types) and not isinstance(value, bool):
+        return str(value) + 'i'
+    else:
+        return str(value)
+
+
+def _get_unicode(data, force=False):
+    """
+    Try to return a text aka unicode object from the given data.
+    """
+    if isinstance(data, binary_type):
+        return data.decode('utf-8')
+    elif data is None:
+        return ''
+    elif force:
+        return str(data)
+    else:
+        return data
+
+
+def make_lines(data):
+    """
+    Extracts the points from the given dict and returns a Unicode string
+    matching the line protocol introduced in InfluxDB 0.9.0.
+
+    line protocol format:
+        <measurement>[,<tag-key>=<tag-value>...] <field-key>=<field-value>\
+            [,<field2-key>=<field2-value>...] [unix-nano-timestamp]
+
+    Ref:
+        https://influxdb.com/docs/v0.9/write_protocols/write_syntax.html
+        https://influxdb.com/docs/v0.9/write_protocols/line.html
+    """
+    lines = []
+    static_tags = data.get('tags', None)
+    for point in data['points']:
+        elements = []
+
+        # add measurement name
+        measurement = _escape_tag(_get_unicode(
+            point.get('measurement', data.get('measurement'))
+        ))
+        key_values = [measurement]
+
+        # add tags
+        if static_tags is None:
+            tags = point.get('tags', {})
+        else:
+            tags = copy(static_tags)
+            tags.update(point.get('tags', {}))
+
+        # tags should be sorted client-side to take load off server
+        for tag_key in sorted(tags.keys()):
+            key = _escape_tag(tag_key)
+            value = _escape_tag(tags[tag_key])
+
+            if key != '' and value != '':
+                key_values.append("{key}={value}".format(key=key, value=value))
+        key_values = ','.join(key_values)
+        elements.append(key_values)
+
+        # add fields
+        field_values = []
+        for field_key in sorted(point['fields'].keys()):
+            key = _escape_tag(field_key)
+            value = _escape_value(point['fields'][field_key])
+            if key != '' and value != '':
+                field_values.append("{key}={value}".format(
+                    key=key,
+                    value=value
+                ))
+        field_values = ','.join(field_values)
+        elements.append(field_values)
+
+        # add timestamp
+        if 'time' in point:
+            elements.append(point['time'])
+
+        line = ' '.join(elements)
+        lines.append(line)
+    lines = '\n'.join(lines)
+    return lines + '\n'