maintain correct page counts on running jobs

awx/ui/client/features/output/api.events.service.js

@@ -0,0 +1,132 @@
+const PAGE_LIMIT = 5;
+const PAGE_SIZE = 50;
+
+const BASE_PARAMS = {
+    order_by: 'start_line',
+    page_size: PAGE_SIZE,
+};
+
+const merge = (...objs) => _.merge({}, ...objs);
+
+const getInitialState = params => ({
+    results: [],
+    count: 0,
+    previous: 1,
+    page: 1,
+    next: 1,
+    last: 1,
+    params: merge(BASE_PARAMS, params),
+});
+
+function JobEventsApiService ($http, $q) {
+    this.init = (endpoint, params) => {
+        this.keys = [];
+        this.cache = {};
+        this.pageSizes = {};
+        this.endpoint = endpoint;
+        this.state = getInitialState(params);
+    };
+
+    this.getLastPage = count => Math.ceil(count / this.state.params.page_size);
+
+    this.fetch = () => {
+        delete this.cache;
+        delete this.keys;
+        delete this.pageSizes;
+
+        this.cache = {};
+        this.keys = [];
+        this.pageSizes = {};
+
+        return this.getPage(1).then(() => this);
+    };
+
+    this.getPage = number => {
+        if (number < 1 || number > this.state.last) {
+            return $q.resolve();
+        }
+
+        if (this.cache[number]) {
+            if (this.pageSizes[number] === PAGE_SIZE) {
+                return this.cache[number];
+            }
+
+            delete this.pageSizes[number];
+            delete this.cache[number];
+
+            this.keys.splice(this.keys.indexOf(number));
+        }
+
+        const { params } = this.state;
+
+        delete params.page;
+
+        params.page = number;
+
+        const promise = $http.get(this.endpoint, { params })
+            .then(({ data }) => {
+                const { results, count } = data;
+
+                this.state.results = results;
+                this.state.count = count;
+                this.state.page = number;
+                this.state.last = this.getLastPage(count);
+                this.state.previous = Math.max(1, number - 1);
+                this.state.next = Math.min(this.state.last, number + 1);
+
+                this.pageSizes[number] = results.length;
+
+                return { results, page: number };
+            });
+
+        this.cache[number] = promise;
+        this.keys.push(number);
+
+        if (this.keys.length > PAGE_LIMIT) {
+            delete this.cache[this.keys.shift()];
+        }
+
+        return promise;
+    };
+
+    this.first = () => this.getPage(1);
+    this.next = () => this.getPage(this.state.next);
+    this.previous = () => this.getPage(this.state.previous);
+
+    this.last = () => {
+        const params = merge({}, this.state.params);
+
+        delete params.page;
+        delete params.order_by;
+
+        params.page = 1;
+        params.order_by = '-start_line';
+
+        const promise = $http.get(this.endpoint, { params })
+            .then(({ data }) => {
+                const { results, count } = data;
+                const lastPage = this.getLastPage(count);
+
+                results.reverse();
+                const shifted = results.splice(count % PAGE_SIZE);
+
+                this.state.results = shifted;
+                this.state.count = count;
+                this.state.page = lastPage;
+                this.state.next = lastPage;
+                this.state.last = lastPage;
+                this.state.previous = Math.max(1, this.state.page - 1);
+
+                return { results: shifted, page: lastPage };
+            });
+
+        return promise;
+    };
+}
+
+JobEventsApiService.$inject = [
+    '$http',
+    '$q'
+];
+
+export default JobEventsApiService;

awx/ui/client/features/output/index.controller.js

@@ -7,7 +7,6 @@ let resource;
 let scroll;
 let engine;
 let status;
-let $http;
 
 let vm;
 let streaming;
@@ -23,7 +22,6 @@ function JobsIndexController (
     _$compile_,
     _$q_,
     _status_,
-    _$http_,
 ) {
     vm = this || {};
 
@@ -37,7 +35,6 @@ function JobsIndexController (
     render = _render_;
     engine = _engine_;
     status = _status_;
-    $http = _$http_;
 
     // Development helper(s)
     vm.clear = devClear;
@@ -128,37 +125,20 @@ function handleJobEvent (data) {
 }
 
 function attachToRunningJob () {
-    const target = `${resource.model.get('url')}${resource.related}/`;
-    const params = { order_by: '-created', page_size: resource.page.size };
+    if (!status.state.running) {
+        return $q.resolve();
+    }
 
-    scroll.pause();
-
-    return render.clear()
-        .then(() => $http.get(target, { params }))
-        .then(res => {
-            const { results } = res.data;
-
-            const minLine = 1 + Math.max(...results.map(event => event.end_line));
-            const maxCount = Math.max(...results.map(event => event.counter));
-
-            const lastPage = resource.model.updateCount(maxCount);
-
-            page.emptyCache(lastPage);
-            page.addPage(lastPage, [], true);
-
-            engine.setMinLine(minLine);
-
-            if (resource.model.page.current === lastPage) {
+    return page.last()
+        .then(events => {
+            if (!events) {
                 return $q.resolve();
             }
 
-            return append(results);
-        })
-        .then(() => {
-            scroll.setScrollPosition(scroll.getScrollHeight());
-            scroll.resume();
+            const minLine = 1 + Math.max(...events.map(event => event.end_line));
 
-            return $q.resolve();
+            return render.clear()
+                .then(() => engine.setMinLine(minLine));
         });
 }
 
@@ -293,11 +273,11 @@ function scrollEnd () {
             }
 
             return render.clear()
-                .then(() => append(events))
-                .then(() => {
-                    scroll.setScrollPosition(scroll.getScrollHeight());
-                    scroll.resume();
-                });
+                .then(() => append(events));
+        })
+        .then(() => {
+            scroll.setScrollPosition(scroll.getScrollHeight());
+            scroll.resume();
         });
 }
 
@@ -379,7 +359,6 @@ JobsIndexController.$inject = [
     '$compile',
     '$q',
     'JobStatusService',
-    '$http',
 ];
 
 module.exports = JobsIndexController;

awx/ui/client/features/output/index.js

@@ -9,6 +9,7 @@ import ScrollService from '~features/output/scroll.service';
 import EngineService from '~features/output/engine.service';
 import StatusService from '~features/output/status.service';
 import MessageService from '~features/output/message.service';
+import EventsApiService from '~features/output/api.events.service';
 import LegacyRedirect from '~features/output/legacy.route';
 
 import DetailsComponent from '~features/output/details.component';
@@ -35,7 +36,8 @@ function resolveResource (
     InventoryUpdate,
     $stateParams,
     qs,
-    Wait
+    Wait,
+    eventsApi,
 ) {
     const { id, type, handleErrors } = $stateParams;
     const { job_event_search } = $stateParams; // eslint-disable-line camelcase
@@ -86,23 +88,29 @@ function resolveResource (
         Object.assign(config.params, query);
     }
 
+    let model;
+
     Wait('start');
     const resourcePromise = new Resource(['get', 'options'], [id, id])
-        .then(model => {
-            const promises = [model.getStats()];
+        .then(job => {
+            const endpoint = `${job.get('url')}${related}/`;
+            eventsApi.init(endpoint, config.params);
 
-            if (model.has('related.labels')) {
-                promises.push(model.extend('get', 'labels'));
+            const promises = [job.getStats(), eventsApi.fetch()];
+
+            if (job.has('related.labels')) {
+                promises.push(job.extend('get', 'labels'));
             }
 
-            promises.push(model.extend('get', related, config));
+            model = job;
             return Promise.all(promises);
         })
-        .then(([stats, model]) => ({
+        .then(([stats, events]) => ({
             id,
             type,
             stats,
             model,
+            events,
             related,
             ws: {
                 events: `${WS_PREFIX}-${key}-${id}`,
@@ -217,6 +225,7 @@ function JobsRun ($stateRegistry, strings) {
                 '$stateParams',
                 'QuerySet',
                 'Wait',
+                'JobEventsApiService',
                 resolveResource
             ],
             breadcrumbLabel: [
@@ -246,6 +255,7 @@ angular
     .service('JobEventEngine', EngineService)
     .service('JobStatusService', StatusService)
     .service('JobMessageService', MessageService)
+    .service('JobEventsApiService', EventsApiService)
     .component('atJobSearch', SearchComponent)
     .component('atJobStats', StatsComponent)
     .component('atJobDetails', DetailsComponent)

awx/ui/client/features/output/page.service.js

@@ -1,6 +1,7 @@
 function JobPageService ($q) {
     this.init = ({ resource }) => {
         this.resource = resource;
+        this.api = this.resource.events;
 
         this.page = {
             limit: this.resource.page.pageLimit,
@@ -125,8 +126,9 @@ function JobPageService ($q) {
         number = number || reference.state.current;
 
         reference.state.first = number;
-        reference.state.last = number;
         reference.state.current = number;
+        reference.state.last = number;
+
         reference.cache.splice(0, reference.cache.length);
     };
 
@@ -203,9 +205,9 @@ function JobPageService ($q) {
 
     this.next = () => {
         const reference = this.getActiveReference();
-        const config = this.buildRequestConfig(reference.state.last + 1);
+        const number = reference.state.last + 1;
 
-        return this.resource.model.goToPage(config)
+        return this.api.getPage(number)
             .then(data => {
                 if (!data || !data.results) {
                     return $q.resolve();
@@ -219,9 +221,8 @@ function JobPageService ($q) {
 
     this.previous = () => {
         const reference = this.getActiveReference();
-        const config = this.buildRequestConfig(reference.state.first - 1);
 
-        return this.resource.model.goToPage(config)
+        return this.api.getPage(reference.state.first - 1)
             .then(data => {
                 if (!data || !data.results) {
                     return $q.resolve();
@@ -233,45 +234,29 @@ function JobPageService ($q) {
             });
     };
 
-    this.last = () => {
-        const config = this.buildRequestConfig('last');
+    this.last = () => this.api.last()
+        .then(data => {
+            if (!data || !data.results || !data.results.length > 0) {
+                return $q.resolve();
+            }
 
-        return this.resource.model.goToPage(config)
-            .then(data => {
-                if (!data || !data.results) {
-                    return $q.resolve();
-                }
+            this.emptyCache(data.page);
+            this.addPage(data.page, [], true);
 
-                this.emptyCache(data.page);
-                this.addPage(data.page, [], true);
+            return data.results;
+        });
 
-                return data.results;
-            });
-    };
+    this.first = () => this.api.first()
+        .then(data => {
+            if (!data || !data.results) {
+                return $q.resolve();
+            }
 
-    this.first = () => {
-        const config = this.buildRequestConfig('first');
+            this.emptyCache(data.page);
+            this.addPage(data.page, [], false);
 
-        return this.resource.model.goToPage(config)
-            .then(data => {
-                if (!data || !data.results) {
-                    return $q.resolve();
-                }
-
-                this.emptyCache(data.page);
-                this.addPage(data.page, [], false);
-
-                return data.results;
-            });
-    };
-
-    this.buildRequestConfig = number => ({
-        page: number,
-        related: this.resource.related,
-        params: {
-            order_by: 'start_line'
-        }
-    });
+            return data.results;
+        });
 
     this.getActiveReference = () => (this.isBookmarkSet() ?
         this.getReference(true) : this.getReference());