|
| 1 | +from abc import ABC |
| 2 | +import os |
| 3 | +from agent.component.base import ComponentBase, ComponentParamBase |
| 4 | +from api.utils.api_utils import timeout |
| 5 | + |
| 6 | +class ListOperationsParam(ComponentParamBase): |
| 7 | + """ |
| 8 | + Define the List Operations component parameters. |
| 9 | + """ |
| 10 | + def __init__(self): |
| 11 | + super().__init__() |
| 12 | + self.query = "" |
| 13 | + self.operations = "topN" |
| 14 | + self.n=0 |
| 15 | + self.sort_method = "asc" |
| 16 | + self.filter = { |
| 17 | + "operator": "=", |
| 18 | + "value": "" |
| 19 | + } |
| 20 | + self.outputs = { |
| 21 | + "result": { |
| 22 | + "value": [], |
| 23 | + "type": "Array of ?" |
| 24 | + }, |
| 25 | + "first": { |
| 26 | + "value": "", |
| 27 | + "type": "?" |
| 28 | + }, |
| 29 | + "last": { |
| 30 | + "value": "", |
| 31 | + "type": "?" |
| 32 | + } |
| 33 | + } |
| 34 | + |
| 35 | + def check(self): |
| 36 | + self.check_empty(self.query, "query") |
| 37 | + self.check_valid_value(self.operations, "Support operations", ["topN","head","tail","filter","sort","drop_duplicates"]) |
| 38 | + |
| 39 | + def get_input_form(self) -> dict[str, dict]: |
| 40 | + return {} |
| 41 | + |
| 42 | + |
| 43 | +class ListOperations(ComponentBase,ABC): |
| 44 | + component_name = "ListOperations" |
| 45 | + |
| 46 | + @timeout(int(os.environ.get("COMPONENT_EXEC_TIMEOUT", 10*60))) |
| 47 | + def _invoke(self, **kwargs): |
| 48 | + self.input_objects=[] |
| 49 | + inputs = getattr(self._param, "query", None) |
| 50 | + self.inputs=self._canvas.get_variable_value(inputs) |
| 51 | + self.set_input_value(inputs, self.inputs) |
| 52 | + if self._param.operations == "topN": |
| 53 | + self._topN() |
| 54 | + elif self._param.operations == "head": |
| 55 | + self._head() |
| 56 | + elif self._param.operations == "tail": |
| 57 | + self._tail() |
| 58 | + elif self._param.operations == "filter": |
| 59 | + self._filter() |
| 60 | + elif self._param.operations == "sort": |
| 61 | + self._sort() |
| 62 | + elif self._param.operations == "drop_duplicates": |
| 63 | + self._drop_duplicates() |
| 64 | + |
| 65 | + |
| 66 | + def _coerce_n(self): |
| 67 | + try: |
| 68 | + return int(getattr(self._param, "n", 0)) |
| 69 | + except Exception: |
| 70 | + return 0 |
| 71 | + |
| 72 | + def _set_outputs(self, outputs): |
| 73 | + self._param.outputs["result"]["value"] = outputs |
| 74 | + self._param.outputs["first"]["value"] = outputs[0] if outputs else None |
| 75 | + self._param.outputs["last"]["value"] = outputs[-1] if outputs else None |
| 76 | + |
| 77 | + def _topN(self): |
| 78 | + n = self._coerce_n() |
| 79 | + if n < 1: |
| 80 | + outputs = [] |
| 81 | + else: |
| 82 | + n = min(n, len(self.inputs)) |
| 83 | + outputs = self.inputs[:n] |
| 84 | + self._set_outputs(outputs) |
| 85 | + |
| 86 | + def _head(self): |
| 87 | + n = self._coerce_n() |
| 88 | + if 1 <= n <= len(self.inputs): |
| 89 | + outputs = [self.inputs[n - 1]] |
| 90 | + else: |
| 91 | + outputs = [] |
| 92 | + self._set_outputs(outputs) |
| 93 | + |
| 94 | + def _tail(self): |
| 95 | + n = self._coerce_n() |
| 96 | + if 1 <= n <= len(self.inputs): |
| 97 | + outputs = [self.inputs[-n]] |
| 98 | + else: |
| 99 | + outputs = [] |
| 100 | + self._set_outputs(outputs) |
| 101 | + |
| 102 | + def _filter(self): |
| 103 | + self._set_outputs([i for i in self.inputs if self._eval(self._norm(i),self._param.filter["operator"],self._param.filter["value"])]) |
| 104 | + |
| 105 | + def _norm(self,v): |
| 106 | + s = "" if v is None else str(v) |
| 107 | + return s |
| 108 | + |
| 109 | + def _eval(self, v, operator, value): |
| 110 | + if operator == "=": |
| 111 | + return v == value |
| 112 | + elif operator == "≠": |
| 113 | + return v != value |
| 114 | + elif operator == "contains": |
| 115 | + return value in v |
| 116 | + elif operator == "start with": |
| 117 | + return v.startswith(value) |
| 118 | + elif operator == "end with": |
| 119 | + return v.endswith(value) |
| 120 | + else: |
| 121 | + return False |
| 122 | + |
| 123 | + def _sort(self): |
| 124 | + if self._param.sort_method == "asc": |
| 125 | + self._set_outputs(sorted(self.inputs)) |
| 126 | + elif self._param.sort_method == "desc": |
| 127 | + self._set_outputs(sorted(self.inputs, reverse=True)) |
| 128 | + |
| 129 | + def _drop_duplicates(self): |
| 130 | + seen = set() |
| 131 | + outs = [] |
| 132 | + for item in self.inputs: |
| 133 | + k = self._hashable(item) |
| 134 | + if k in seen: |
| 135 | + continue |
| 136 | + seen.add(k) |
| 137 | + outs.append(item) |
| 138 | + self._set_outputs(outs) |
| 139 | + |
| 140 | + def _hashable(self,x): |
| 141 | + if isinstance(x, dict): |
| 142 | + return tuple(sorted((k, self._hashable(v)) for k, v in x.items())) |
| 143 | + if isinstance(x, (list, tuple)): |
| 144 | + return tuple(self._hashable(v) for v in x) |
| 145 | + if isinstance(x, set): |
| 146 | + return tuple(sorted(self._hashable(v) for v in x)) |
| 147 | + return x |
| 148 | + def thoughts(self) -> str: |
| 149 | + return "ListOperation in progress" |
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