src/views/components/trace/trace-detail-chart-list.vue

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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
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  http://www.apache.org/licenses/LICENSE-2.0

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limitations under the License. -->
<template>
  <div class="time-charts scroll_hide">
    <div class="rk-trace-t-loading" v-show="loading">
      <svg class="icon loading">
        <use xlink:href="#spinner"></use>
      </svg>
    </div>
    <transition-group name="fade" tag="a" class="mb-5">
      <span class="time-charts-item mr-10" v-for="(i, index) in list" :key="i" :style="`color:${computedScale(index)}`">
        <svg class="icon vm mr-5 sm">
          <use xlink:href="#issue-open-m"></use>
        </svg>
        <span>{{ i }}</span>
      </span>
    </transition-group>
    <a class="rk-btn r vm  tc" @click="downloadTrace">{{ $t('exportImage') }}</a>
    <rk-sidebox :width="'50%'" :show.sync="showDetail" :title="$t('spanInfo')">
      <TraceSpanLogs :currentSpan="currentSpan" />
    </rk-sidebox>
    <div class="trace-list">
      <div ref="traceList"></div>
    </div>
  </div>
</template>
<script lang="js">
  import copy from '@/utils/copy';
  import * as d3 from 'd3';
  import Trace from './d3-trace';
  import _ from 'lodash';
  import TraceSpanLogs from './trace-span-logs.vue';
  export default {
    components: {TraceSpanLogs},
    props: ['data', 'traceId'],
    data() {
      return {
        segmentId: [],
        showDetail: false,
        list: [],
        currentSpan: [],
        loading: true,
        fixSpansSize: 0,
        showRelatedLogs: false,
      };
    },
    watch: {
      data() {
        if (!this.data.length) { return; }
        this.loading = true;
        this.changeTree();
        this.tree.init({label: 'TRACE_ROOT', children: this.segmentId}, this.data, this.fixSpansSize);
        this.tree.draw(() => {
          setTimeout(() => {
            this.loading = false;
          }, 200);
        });
      },
    },
    beforeDestroy() {
      d3.selectAll('.d3-tip').remove();
    },
    mounted() {
      this.$eventBus.$on('TRACE-LIST-LOADING', this, () => { this.loading = true; });
      // this.loading = true;
      this.changeTree();
      this.tree = new Trace(this.$refs.traceList, this);
      this.tree.init({label: 'TRACE_ROOT', children: this.segmentId}, this.data, this.fixSpansSize);
      this.tree.draw();
      this.loading = false;
      // this.computedScale();
    },
    methods: {
      handleSelectSpan(i) {
        this.currentSpan = i.data;
        this.showDetail = true;
      },
      traverseTree(node, spanId, segmentId, data) {
        if (!node || node.isBroken) { return; }
        if (node.spanId === spanId && node.segmentId === segmentId) {
          node.children.push(data);
          return;
        }
        if (node.children && node.children.length > 0) {
          node.children.forEach((nodeItem) => {
            this.traverseTree(nodeItem, spanId, segmentId, data);
          });
        }
      },
      computedScale(i) {
         // Rainbow map
        const sequentialScale = d3.scaleSequential()
        .domain([0, this.list.length + 1])
        .interpolator(d3.interpolateCool);
        return sequentialScale(i);
      },
      changeTree() {
        if (this.data.length === 0) {
          return [];
        }
        this.list = Array.from(new Set(this.data.map((i) => i.serviceCode)));
        this.segmentId = [];
        const segmentGroup = {};
        const segmentIdGroup = [];
        const fixSpans = [];
        const segmentHeaders = [];
        this.data.forEach((span) => {
          if (span.parentSpanId === -1) {
            segmentHeaders.push(span);
          } else {
            const index = this.data.findIndex((i) => (
              i.segmentId === span.segmentId
              &&
              i.spanId === (span.spanId - 1)
            ));
            const fixSpanKeyContent = {
              traceId: span.traceId,
              segmentId: span.segmentId,
              spanId: span.spanId - 1,
              parentSpanId: span.spanId - 2,
            };
            if (index === -1 && !_.find(fixSpans, fixSpanKeyContent)) {
              fixSpans.push(
                {
                  ...fixSpanKeyContent,
                  refs: [],
                  endpointName: `VNode: ${span.segmentId}`,
                  serviceCode: 'VirtualNode',
                  type: `[Broken] ${span.type}`,
                  peer: '',
                  component: `VirtualNode: #${span.spanId - 1}`,
                  isError: true,
                  isBroken: true,
                  layer: 'Broken',
                  tags: [],
                  logs: [],
                },
              );
            }
          }
        });
        segmentHeaders.forEach((span) => {
          if (span.refs.length) {
            span.refs.forEach((ref) => {
              const index = this.data.findIndex((i) => (
                ref.parentSegmentId === i.segmentId
                &&
                ref.parentSpanId === i.spanId
              ));
              if (index === -1) {
                // create a known broken node.
                const i = ref.parentSpanId;
                const fixSpanKeyContent = {
                  traceId: ref.traceId,
                  segmentId: ref.parentSegmentId,
                  spanId: i,
                  parentSpanId: i > -1 ? 0 : -1,
                };
                if (!_.find(fixSpans, fixSpanKeyContent)) {
                  fixSpans.push({
                      ...fixSpanKeyContent, refs: [], endpointName: `VNode: ${ref.parentSegmentId}`,
                    serviceCode: 'VirtualNode', type: `[Broken] ${ref.type}`, peer: '', component: `VirtualNode: #${i}`,
                    isError: true, isBroken: true, layer: 'Broken', tags: [], logs: [],
                  });
                }
                // if root broken node is not exist, create a root broken node.
                if (fixSpanKeyContent.parentSpanId > -1) {
                  const fixRootSpanKeyContent = {
                    traceId: ref.traceId,
                    segmentId: ref.parentSegmentId,
                    spanId: 0,
                    parentSpanId: -1,
                  };
                  if (!_.find(fixSpans, fixRootSpanKeyContent)) {
                    fixSpans.push({
                      ...fixRootSpanKeyContent,
                      refs: [],
                      endpointName: `VNode: ${ref.parentSegmentId}`,
                      serviceCode: 'VirtualNode',
                      type: `[Broken] ${ref.type}`,
                      peer: '',
                      component: `VirtualNode: #0`,
                      isError: true,
                      isBroken: true,
                      layer: 'Broken',
                      tags: [],
                      logs: [],
                    });
                  }
                }
              }
            });
          }
        });
        [...fixSpans, ...this.data].forEach((i) => {
          i.label = i.endpointName || 'no operation name';
          i.children = [];
          if (segmentGroup[i.segmentId] === undefined) {
            segmentIdGroup.push(i.segmentId);
            segmentGroup[i.segmentId] = [];
            segmentGroup[i.segmentId].push(i);
          } else {
            segmentGroup[i.segmentId].push(i);
          }
        });
        this.fixSpansSize = fixSpans.length;
        segmentIdGroup.forEach((id) => {
          const currentSegment = segmentGroup[id].sort((a, b) => b.parentSpanId - a.parentSpanId);
          currentSegment.forEach((s) => {
            const index = currentSegment.findIndex((i) => i.spanId === s.parentSpanId);
            if (index !== -1) {
              if (
                (currentSegment[index].isBroken && currentSegment[index].parentSpanId === -1)
                ||
                !currentSegment[index].isBroken
              ) {
                currentSegment[index].children.push(s);
                currentSegment[index].children.sort((a, b) => a.spanId - b.spanId);
              }
            }
            if (s.isBroken) {
              const children = _.filter(this.data, (span) => {
                return _.find(span.refs, {traceId: s.traceId, parentSegmentId: s.segmentId, parentSpanId: s.spanId});
              });
              if (children.length > 0) {
                s.children.push(...children);
              }
            }
          });
          segmentGroup[id] = currentSegment[currentSegment.length - 1];
        });
        segmentIdGroup.forEach((id) => {
          segmentGroup[id].refs.forEach((ref) => {
            if (ref.traceId === this.traceId) {
              this.traverseTree(
                segmentGroup[ref.parentSegmentId],
                ref.parentSpanId,
                ref.parentSegmentId,
                segmentGroup[id]);
            }
          });
        });
        for (const i in segmentGroup) {
          if (segmentGroup[i].refs.length === 0 ) {
            this.segmentId.push(segmentGroup[i]);
          }
        }
        this.segmentId.forEach((i) => {
          this.collapse(i);
        });
      },
      collapse(d) {
        if (d.children) {
          let dur = d.endTime - d.startTime;
          d.children.forEach((i) => {
            dur -= (i.endTime - i.startTime);
          });
          d.dur = dur < 0 ? 0 : dur;
          d.children.forEach((i) => this.collapse(i));
        }
      },
      downloadTrace() {
        const serializer = new XMLSerializer();
        const svgNode = d3.select('.trace-list-dowanload').node();
        const source = `<?xml version="1.0" standalone="no"?>\r\n${serializer.serializeToString(svgNode)}`;
        const canvas = document.createElement('canvas');
        const context = canvas.getContext('2d');
        canvas.width = d3.select('.trace-list-dowanload')._groups[0][0].clientWidth;
        canvas.height = d3.select('.trace-list-dowanload')._groups[0][0].clientHeight;
        context.fillStyle = '#fff';
        context.fillRect(0, 0, canvas.width, canvas.height);
        const image = new Image();
        image.src = `data:image/svg+xml;charset=utf-8,${encodeURIComponent(source)}`;
        image.onload = () => {
          context.drawImage(image, 0, 0);
          const tagA = document.createElement('a');
          tagA.download = 'trace-list.png';
          tagA.href = canvas.toDataURL('image/png');
          tagA.click();
        };
      },
    },
  };
</script>
<style lang="scss">
  .time-charts {
    overflow: auto;
    padding: 10px 30px;
    position: relative;
    min-height: 150px;
  }
  .trace-node .group {
    cursor: pointer;
    fill-opacity: 0;
  }
  .trace-node-container {
    fill: rgba(0, 0, 0, 0);
    stroke-width: 5px;
    cursor: pointer;
    &:hover {
      fill: rgba(0, 0, 0, 0.05);
    }
  }
  .trace-node .node-text {
    font: 12.5px sans-serif;
    pointer-events: none;
  }
  .domain {
    display: none;
  }
  .time-charts-item {
    display: inline-block;
    padding: 2px 8px;
    border: 1px solid;
    font-size: 11px;
    border-radius: 4px;
  }
  .trace-list {
    fill: rgba(0, 0, 0, 0);
  }
  .trace-list .trace-node rect {
    &:hover {
      fill: rgba(0, 0, 0, 0.05);
    }
  }
  .dialog-c-text {
    white-space: pre;
    overflow: auto;
    font-family: monospace;
  }
</style>