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/*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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*/
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|
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/**
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* AUTO-GENERATED FILE. DO NOT MODIFY.
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*/
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/*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
|
* distributed with this work for additional information
|
* regarding copyright ownership. The ASF licenses this file
|
* to you under the Apache License, Version 2.0 (the
|
* "License"); you may not use this file except in compliance
|
* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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*/
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import { parseConditionalExpression } from '../../util/conditionalExpression.js';
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import { hasOwn, createHashMap } from 'zrender/lib/core/util.js';
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import { makePrintable, throwError } from '../../util/log.js';
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export var filterTransform = {
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type: 'echarts:filter',
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// PEDING: enhance to filter by index rather than create new data
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transform: function (params) {
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// [Caveat] Fail-Fast:
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// Do not return the whole dataset unless user config indicate it explicitly.
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// For example, if no condition specified by mistake, return an empty result
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// is better than return the entire raw soruce for user to find the mistake.
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var upstream = params.upstream;
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var rawItem;
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var condition = parseConditionalExpression(params.config, {
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valueGetterAttrMap: createHashMap({
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dimension: true
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}),
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prepareGetValue: function (exprOption) {
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var errMsg = '';
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var dimLoose = exprOption.dimension;
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if (!hasOwn(exprOption, 'dimension')) {
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if (process.env.NODE_ENV !== 'production') {
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errMsg = makePrintable('Relation condition must has prop "dimension" specified.', 'Illegal condition:', exprOption);
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}
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throwError(errMsg);
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}
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var dimInfo = upstream.getDimensionInfo(dimLoose);
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if (!dimInfo) {
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if (process.env.NODE_ENV !== 'production') {
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errMsg = makePrintable('Can not find dimension info via: ' + dimLoose + '.\n', 'Existing dimensions: ', upstream.cloneAllDimensionInfo(), '.\n', 'Illegal condition:', exprOption, '.\n');
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}
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throwError(errMsg);
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}
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return {
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dimIdx: dimInfo.index
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};
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},
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getValue: function (param) {
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return upstream.retrieveValueFromItem(rawItem, param.dimIdx);
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}
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});
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var resultData = [];
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for (var i = 0, len = upstream.count(); i < len; i++) {
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rawItem = upstream.getRawDataItem(i);
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if (condition.evaluate()) {
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resultData.push(rawItem);
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}
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}
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return {
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data: resultData
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};
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}
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};
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