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From GitBox <...@apache.org>
Subject [GitHub] [incubator-zipkin] tacigar commented on a change in pull request #2577: Change file suffix .js to .jsx
Date Fri, 10 May 2019 04:24:43 GMT
tacigar commented on a change in pull request #2577: Change file suffix .js to .jsx
URL: https://github.com/apache/incubator-zipkin/pull/2577#discussion_r282742366
 
 

 ##########
 File path: zipkin-lens/src/components/Dependencies/Dependencies.jsx
 ##########
 @@ -0,0 +1,228 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one 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
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+import PropTypes from 'prop-types';
+import React from 'react';
+import { withRouter } from 'react-router';
+import ReactSelect from 'react-select';
+import queryString from 'query-string';
+import moment from 'moment';
+
+import DependenciesGraph from './DependenciesGraph';
+import DependenciesSidebar from './DependenciesSidebar';
+import DatePicker from '../Common/DatePicker';
+import LoadingOverlay from '../Common/LoadingOverlay';
+import { buildQueryParameters } from '../../util/api';
+
+const propTypes = {
+  location: PropTypes.shape({}).isRequired,
+  isLoading: PropTypes.bool.isRequired,
+  graph: PropTypes.shape({}).isRequired,
+  fetchDependencies: PropTypes.func.isRequired,
+  clearDependencies: PropTypes.func.isRequired,
+  history: PropTypes.shape({
+    push: PropTypes.func.isRequired,
+  }).isRequired,
+};
+
+export class Dependencies extends React.Component { // export for testing without withRouter
+  constructor(props) {
+    super(props);
+
+    this.state = {
+      startTs: moment().subtract(1, 'days'),
+      endTs: moment(),
+      selectedServiceName: '',
+      filter: '',
+    };
+
+    this.handleStartTsChange = this.handleStartTsChange.bind(this);
+    this.handleEndTsChange = this.handleEndTsChange.bind(this);
+    this.handleServiceSelect = this.handleServiceSelect.bind(this);
+    this.handleFilterChange = this.handleFilterChange.bind(this);
+    this.handleAnalyzeButtonClick = this.handleAnalyzeButtonClick.bind(this);
+  }
+
+  componentDidMount() {
+    const { location } = this.props;
+
+    const queryParams = queryString.parse(location.search);
+    const endTs = queryParams.endTs ? moment(parseInt(queryParams.endTs, 10)) : moment();
+    const lookback = queryParams.lookback
+      ? moment.duration(parseInt(queryParams.lookback, 10))
+      : moment.duration(1, 'days');
+    const startTs = endTs.clone().subtract(lookback); // subtract is not immutable.
+    this.setState({
+      startTs,
+      endTs,
+    });
+    this.fetchDependencies(location);
+  }
+
+  componentWillUnmount() {
+    const { clearDependencies } = this.props;
+    clearDependencies();
+  }
+
+  fetchDependencies(location) {
+    const { fetchDependencies } = this.props;
+    if (location.search !== '' && location.search !== '?') {
+      const queryParameters = queryString.parse(location.search);
+      fetchDependencies(queryParameters);
+    }
+  }
+
+  handleStartTsChange(startTs) {
+    this.setState({ startTs });
+  }
+
+  handleEndTsChange(endTs) {
+    this.setState({ endTs });
+  }
+
+  handleServiceSelect(selectedServiceName) {
+    this.setState({ selectedServiceName });
+  }
+
+  handleFilterChange(filter) {
+    this.setState({ filter });
+  }
+
+  handleAnalyzeButtonClick() {
+    const { startTs, endTs } = this.state;
+    const { history } = this.props;
+    const queryParameters = buildQueryParameters({
+      endTs: endTs.valueOf(),
+      lookback: endTs.valueOf() - startTs.valueOf(),
+    });
+    const location = {
+      pathname: '/zipkin/dependency',
+      search: queryParameters,
+    };
+    history.push(location);
+    this.fetchDependencies(location);
+  }
+
+  renderSearch() {
+    const { startTs, endTs } = this.state;
+    return (
+      <div className="dependencies__search">
+        <div className="dependencies__lookback-condition">
+          <DatePicker
+            onChange={this.handleStartTsChange}
+            selected={startTs}
+          />
+        </div>
+        <div className="dependencies__lookback-condition-separator">
+          -
+        </div>
+        <div className="dependencies__lookback-condition">
+          <DatePicker
+            onChange={this.handleEndTsChange}
+            selected={endTs}
+          />
+        </div>
+        <div className="dependencies__analyze-button-wrapper">
+          <div
+            role="presentation"
+            onClick={this.handleAnalyzeButtonClick}
+            className="dependencies__analyze-button"
+          >
+            Analyze Dependencies
+          </div>
+        </div>
+      </div>
+    );
+  }
+
+  renderFilter() {
+    const { filter } = this.state;
+    const { graph } = this.props;
+    const options = graph.allNodeNames().map(
+      nodeName => ({ value: nodeName, label: nodeName }),
+    );
+    const value = !filter ? undefined : { value: filter, label: filter };
+    return (
+      <ReactSelect
+        onChange={(selected) => { this.handleFilterChange(selected.value); }}
+        options={options}
+        value={value}
+        styles={{
+          control: provided => ({
+            ...provided,
+            width: '240px',
+          }),
+        }}
+        placeholder="Filter by ..."
+      />
+    );
+  }
+
+  render() {
+    const { isLoading, graph } = this.props;
+    const { selectedServiceName, filter } = this.state;
+    const isSidebarOpened = !!selectedServiceName;
+
+    return (
+      <div className="dependencies">
+        <LoadingOverlay active={isLoading} />
+        <div className={`dependencies__main ${
+          isSidebarOpened
+            ? 'dependencies__main--narrow'
+            : 'dependencies__main--wide'}`}
+        >
+          <div className="dependencies__search-wrapper">
+            {this.renderSearch()}
+          </div>
+          {
+            graph.allNodes().length === 0
+              ? null
+              : (
+                <div>
+                  <div className="dependencies__filter-wrapper">
+                    {this.renderFilter()}
+                  </div>
+                  <div className="dependencies__graph-wrapper">
+                    <DependenciesGraph
+                      graph={graph}
+                      onServiceSelect={this.handleServiceSelect}
+                      selectedServiceName={selectedServiceName}
+                      filter={filter}
+                    />
+                  </div>
+                </div>
+              )
+          }
+        </div>
+        <div className={`dependencies__sidebar-wrapper ${
+          isSidebarOpened
+            ? 'dependencies__sidebar-wrapper--opened'
+            : 'dependencies__sidebar-wrapper--closed'}`}
+        >
+          <DependenciesSidebar
+            serviceName={selectedServiceName}
+            targetEdges={graph.getTargetEdges(selectedServiceName)}
+            sourceEdges={graph.getSourceEdges(selectedServiceName)}
+          />
+        </div>
+      </div>
+    );
+  }
+}
+
+Dependencies.propTypes = propTypes;
+
+export default withRouter(Dependencies);
 
 Review comment:
   The above code is moved from `index.js`

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