[SPARK-7650] [STREAMING] [WEBUI] Move streaming css and js files to the streaming project

cc tdas

Author: zsxwing <zsxwing@gmail.com>

Closes #6160 from zsxwing/SPARK-7650 and squashes the following commits:

fe6ae15 [zsxwing] Fix the import order
a4ffd99 [zsxwing] Merge branch 'master' into SPARK-7650
dc402b6 [zsxwing] Move streaming css and js files to the streaming project

4 files changed, 356 insertions, 3 deletions

diff --git a/streaming/src/main/resources/org/apache/spark/streaming/ui/static/streaming-page.css b/streaming/src/main/resources/org/apache/spark/streaming/ui/static/streaming-page.css
new file mode 100644
index 0000000000..19abe889ad
--- /dev/null
+++ b/streaming/src/main/resources/org/apache/spark/streaming/ui/static/streaming-page.css
@@ -0,0 +1,62 @@
+/*
+ * 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.
+ */
+
+
+.graph {
+  font: 10px sans-serif;
+}
+
+.axis path, .axis line {
+  fill: none;
+  stroke: gray;
+  shape-rendering: crispEdges;
+}
+
+.axis text {
+  fill: gray;
+}
+
+.tooltip-inner {
+  max-width: 500px !important; // Make sure we only have one line tooltip
+}
+
+.line {
+  fill: none;
+  stroke: #0088cc;
+  stroke-width: 1.5px;
+}
+
+.bar rect {
+  fill: #0088cc;
+  shape-rendering: crispEdges;
+}
+
+.bar rect:hover {
+  fill: #00c2ff;
+}
+
+.timeline {
+  width: 500px;
+}
+
+.histogram {
+  width: auto;
+}
+
+span.expand-input-rate {
+  cursor: pointer;
+}
diff --git a/streaming/src/main/resources/org/apache/spark/streaming/ui/static/streaming-page.js b/streaming/src/main/resources/org/apache/spark/streaming/ui/static/streaming-page.js
new file mode 100644
index 0000000000..0ee6752b29
--- /dev/null
+++ b/streaming/src/main/resources/org/apache/spark/streaming/ui/static/streaming-page.js
@@ -0,0 +1,281 @@
+/*
+ * 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.
+ */
+
+
+// timeFormat: StreamingPage.scala will generate a global "timeFormat" dictionary to store the time
+// and its formatted string. Because we cannot specify a timezone in JavaScript, to make sure the
+// server and client use the same timezone, we use the "timeFormat" dictionary to format all time
+// values used in the graphs.
+
+// A global margin left for all timeline graphs. It will be set in "registerTimeline". This will be
+// used to align all timeline graphs.
+var maxMarginLeftForTimeline = 0;
+
+// The max X values for all histograms. It will be set in "registerHistogram".
+var maxXForHistogram = 0;
+
+var histogramBinCount = 10;
+var yValueFormat = d3.format(",.2f");
+
+// Show a tooltip "text" for "node"
+function showBootstrapTooltip(node, text) {
+    $(node).tooltip({title: text, trigger: "manual", container: "body"});
+    $(node).tooltip("show");
+}
+
+// Hide the tooltip for "node"
+function hideBootstrapTooltip(node) {
+    $(node).tooltip("destroy");
+}
+
+// Register a timeline graph. All timeline graphs should be register before calling any
+// "drawTimeline" so that we can determine the max margin left for all timeline graphs.
+function registerTimeline(minY, maxY) {
+    var numOfChars = yValueFormat(maxY).length;
+    // A least width for "maxY" in the graph
+    var pxForMaxY = numOfChars * 8 + 10;
+    // Make sure we have enough space to show the ticks in the y axis of timeline
+    maxMarginLeftForTimeline = pxForMaxY > maxMarginLeftForTimeline? pxForMaxY : maxMarginLeftForTimeline;
+}
+
+// Register a histogram graph. All histogram graphs should be register before calling any
+// "drawHistogram" so that we can determine the max X value for histograms.
+function registerHistogram(values, minY, maxY) {
+    var data = d3.layout.histogram().range([minY, maxY]).bins(histogramBinCount)(values);
+    // d.x is the y values while d.y is the x values
+    var maxX = d3.max(data, function(d) { return d.y; });
+    maxXForHistogram = maxX > maxXForHistogram ? maxX : maxXForHistogram;
+}
+
+// Draw a line between (x1, y1) and (x2, y2)
+function drawLine(svg, xFunc, yFunc, x1, y1, x2, y2) {
+    var line = d3.svg.line()
+        .x(function(d) { return xFunc(d.x); })
+        .y(function(d) { return yFunc(d.y); });
+    var data = [{x: x1, y: y1}, {x: x2, y: y2}];
+    svg.append("path")
+        .datum(data)
+        .style("stroke-dasharray", ("6, 6"))
+        .style("stroke", "lightblue")
+        .attr("class", "line")
+        .attr("d", line);
+}
+
+/**
+ * @param id the `id` used in the html `div` tag
+ * @param data the data for the timeline graph
+ * @param minX the min value of X axis
+ * @param maxX the max value of X axis
+ * @param minY the min value of Y axis
+ * @param maxY the max value of Y axis
+ * @param unitY the unit of Y axis
+ * @param batchInterval if "batchInterval" is specified, we will draw a line for "batchInterval" in the graph
+ */
+function drawTimeline(id, data, minX, maxX, minY, maxY, unitY, batchInterval) {
+    // Hide the right border of "<td>". We cannot use "css" directly, or "sorttable.js" will override them.
+    d3.select(d3.select(id).node().parentNode)
+        .style("padding", "8px 0 8px 8px")
+        .style("border-right", "0px solid white");
+
+    var margin = {top: 20, right: 27, bottom: 30, left: maxMarginLeftForTimeline};
+    var width = 500 - margin.left - margin.right;
+    var height = 150 - margin.top - margin.bottom;
+
+    var x = d3.scale.linear().domain([minX, maxX]).range([0, width]);
+    var y = d3.scale.linear().domain([minY, maxY]).range([height, 0]);
+
+    var xAxis = d3.svg.axis().scale(x).orient("bottom").tickFormat(function(d) {
+        var formattedDate = timeFormat[d];
+        var dotIndex = formattedDate.indexOf('.');
+        if (dotIndex >= 0) {
+            // Remove milliseconds
+            return formattedDate.substring(0, dotIndex);
+        } else {
+            return formattedDate;
+        }
+    });
+    var formatYValue = d3.format(",.2f");
+    var yAxis = d3.svg.axis().scale(y).orient("left").ticks(5).tickFormat(formatYValue);
+
+    var line = d3.svg.line()
+        .x(function(d) { return x(d.x); })
+        .y(function(d) { return y(d.y); });
+
+    var svg = d3.select(id).append("svg")
+        .attr("width", width + margin.left + margin.right)
+        .attr("height", height + margin.top + margin.bottom)
+        .append("g")
+            .attr("transform", "translate(" + margin.left + "," + margin.top + ")");
+
+    // Only show the first and last time in the graph
+    xAxis.tickValues(x.domain());
+
+    svg.append("g")
+        .attr("class", "x axis")
+        .attr("transform", "translate(0," + height + ")")
+        .call(xAxis)
+
+    svg.append("g")
+        .attr("class", "y axis")
+        .call(yAxis)
+        .append("text")
+            .attr("transform", "translate(0," + (-3) + ")")
+            .text(unitY);
+
+
+    if (batchInterval && batchInterval <= maxY) {
+        drawLine(svg, x, y, minX, batchInterval, maxX, batchInterval);
+    }
+
+    svg.append("path")
+        .datum(data)
+        .attr("class", "line")
+        .attr("d", line);
+
+    // Add points to the line. However, we make it invisible at first. But when the user moves mouse
+    // over a point, it will be displayed with its detail.
+    svg.selectAll(".point")
+        .data(data)
+        .enter().append("circle")
+            .attr("stroke", "white") // white and opacity = 0 make it invisible
+            .attr("fill", "white")
+            .attr("opacity", "0")
+            .attr("cx", function(d) { return x(d.x); })
+            .attr("cy", function(d) { return y(d.y); })
+            .attr("r", function(d) { return 3; })
+            .on('mouseover', function(d) {
+                var tip = formatYValue(d.y) + " " + unitY + " at " + timeFormat[d.x];
+                showBootstrapTooltip(d3.select(this).node(), tip);
+                // show the point
+                d3.select(this)
+                    .attr("stroke", "steelblue")
+                    .attr("fill", "steelblue")
+                    .attr("opacity", "1");
+            })
+            .on('mouseout',  function() {
+                hideBootstrapTooltip(d3.select(this).node());
+                // hide the point
+                d3.select(this)
+                    .attr("stroke", "white")
+                    .attr("fill", "white")
+                    .attr("opacity", "0");
+            })
+            .on("click", function(d) {
+                window.location.href = "batch/?id=" + d.x;
+            });
+}
+
+/**
+ * @param id the `id` used in the html `div` tag
+ * @param values the data for the histogram graph
+ * @param minY the min value of Y axis
+ * @param maxY the max value of Y axis
+ * @param unitY the unit of Y axis
+ * @param batchInterval if "batchInterval" is specified, we will draw a line for "batchInterval" in the graph
+ */
+function drawHistogram(id, values, minY, maxY, unitY, batchInterval) {
+    // Hide the left border of "<td>". We cannot use "css" directly, or "sorttable.js" will override them.
+    d3.select(d3.select(id).node().parentNode)
+        .style("padding", "8px 8px 8px 0")
+        .style("border-left", "0px solid white");
+
+    var margin = {top: 20, right: 30, bottom: 30, left: 10};
+    var width = 300 - margin.left - margin.right;
+    var height = 150 - margin.top - margin.bottom;
+
+    var x = d3.scale.linear().domain([0, maxXForHistogram]).range([0, width]);
+    var y = d3.scale.linear().domain([minY, maxY]).range([height, 0]);
+
+    var xAxis = d3.svg.axis().scale(x).orient("top").ticks(5);
+    var yAxis = d3.svg.axis().scale(y).orient("left").ticks(0).tickFormat(function(d) { return ""; });
+
+    var data = d3.layout.histogram().range([minY, maxY]).bins(histogramBinCount)(values);
+
+    var svg = d3.select(id).append("svg")
+        .attr("width", width + margin.left + margin.right)
+        .attr("height", height + margin.top + margin.bottom)
+        .append("g")
+            .attr("transform", "translate(" + margin.left + "," + margin.top + ")");
+
+    if (batchInterval && batchInterval <= maxY) {
+        drawLine(svg, x, y, 0, batchInterval, maxXForHistogram, batchInterval);
+    }
+
+    svg.append("g")
+        .attr("class", "x axis")
+        .call(xAxis)
+
+    svg.append("g")
+        .attr("class", "y axis")
+        .call(yAxis)
+
+    var bar = svg.selectAll(".bar")
+        .data(data)
+        .enter()
+        .append("g")
+            .attr("transform", function(d) { return "translate(0," + (y(d.x) - height + y(d.dx))  + ")";})
+            .attr("class", "bar").append("rect")
+            .attr("width", function(d) { return x(d.y); })
+            .attr("height", function(d) { return height - y(d.dx); })
+            .on('mouseover', function(d) {
+                var percent = yValueFormat(d.y * 100.0 / values.length) + "%";
+                var tip = d.y + " batches (" + percent + ") between " + yValueFormat(d.x) + " and " + yValueFormat(d.x + d.dx) + " " + unitY;
+                showBootstrapTooltip(d3.select(this).node(), tip);
+            })
+            .on('mouseout',  function() {
+                hideBootstrapTooltip(d3.select(this).node());
+            });
+
+    if (batchInterval && batchInterval <= maxY) {
+        // Add the "stable" text to the graph below the batch interval line.
+        var stableXOffset = x(maxXForHistogram) - 20;
+        var stableYOffset = y(batchInterval) + 15;
+        svg.append("text")
+            .style("fill", "lightblue")
+            .attr("class", "stable-text")
+            .attr("text-anchor", "middle")
+            .attr("transform", "translate(" + stableXOffset + "," + stableYOffset + ")")
+            .text("stable")
+            .on('mouseover', function(d) {
+              var tip = "Processing Time <= Batch Interval (" + yValueFormat(batchInterval) +" " + unitY +")";
+              showBootstrapTooltip(d3.select(this).node(), tip);
+            })
+            .on('mouseout',  function() {
+              hideBootstrapTooltip(d3.select(this).node());
+            });
+    }
+}
+
+$(function() {
+    var status = window.localStorage && window.localStorage.getItem("show-streams-detail") == "true";
+
+    $("span.expand-input-rate").click(function() {
+        status = !status;
+        $("#inputs-table").toggle('collapsed');
+        // Toggle the class of the arrow between open and closed
+        $(this).find('.expand-input-rate-arrow').toggleClass('arrow-open').toggleClass('arrow-closed');
+        if (window.localStorage) {
+            window.localStorage.setItem("show-streams-detail", "" + status);
+        }
+    });
+
+    if (status) {
+        $("#inputs-table").toggle('collapsed');
+        // Toggle the class of the arrow between open and closed
+        $(this).find('.expand-input-rate-arrow').toggleClass('arrow-open').toggleClass('arrow-closed');
+    }
+});
diff --git a/streaming/src/main/scala/org/apache/spark/streaming/ui/StreamingPage.scala b/streaming/src/main/scala/org/apache/spark/streaming/ui/StreamingPage.scala
index 070564aa10..4ee7a486e3 100644
--- a/streaming/src/main/scala/org/apache/spark/streaming/ui/StreamingPage.scala
+++ b/streaming/src/main/scala/org/apache/spark/streaming/ui/StreamingPage.scala
@@ -166,8 +166,8 @@ private[ui] class StreamingPage(parent: StreamingTab)
   private def generateLoadResources(): Seq[Node] = {
     // scalastyle:off
     <script src={SparkUIUtils.prependBaseUri("/static/d3.min.js")}></script>
-      <link rel="stylesheet" href={SparkUIUtils.prependBaseUri("/static/streaming-page.css")} type="text/css"/>
-      <script src={SparkUIUtils.prependBaseUri("/static/streaming-page.js")}></script>
+      <link rel="stylesheet" href={SparkUIUtils.prependBaseUri("/static/streaming/streaming-page.css")} type="text/css"/>
+      <script src={SparkUIUtils.prependBaseUri("/static/streaming/streaming-page.js")}></script>
     // scalastyle:on
   }
 
diff --git a/streaming/src/main/scala/org/apache/spark/streaming/ui/StreamingTab.scala b/streaming/src/main/scala/org/apache/spark/streaming/ui/StreamingTab.scala
index f307b54bb9..e0c0f57212 100644
--- a/streaming/src/main/scala/org/apache/spark/streaming/ui/StreamingTab.scala
+++ b/streaming/src/main/scala/org/apache/spark/streaming/ui/StreamingTab.scala
@@ -17,9 +17,11 @@
 
 package org.apache.spark.streaming.ui
 
+import org.eclipse.jetty.servlet.ServletContextHandler
+
 import org.apache.spark.{Logging, SparkException}
 import org.apache.spark.streaming.StreamingContext
-import org.apache.spark.ui.{SparkUI, SparkUITab}
+import org.apache.spark.ui.{JettyUtils, SparkUI, SparkUITab}
 
 import StreamingTab._
 
@@ -30,6 +32,8 @@ import StreamingTab._
 private[spark] class StreamingTab(val ssc: StreamingContext)
   extends SparkUITab(getSparkUI(ssc), "streaming") with Logging {
 
+  private val STATIC_RESOURCE_DIR = "org/apache/spark/streaming/ui/static"
+
   val parent = getSparkUI(ssc)
   val listener = ssc.progressListener
 
@@ -38,12 +42,18 @@ private[spark] class StreamingTab(val ssc: StreamingContext)
   attachPage(new StreamingPage(this))
   attachPage(new BatchPage(this))
 
+  var staticHandler: ServletContextHandler = null
+
   def attach() {
     getSparkUI(ssc).attachTab(this)
+    staticHandler = JettyUtils.createStaticHandler(STATIC_RESOURCE_DIR, "/static/streaming")
+    getSparkUI(ssc).attachHandler(staticHandler)
   }
 
   def detach() {
     getSparkUI(ssc).detachTab(this)
+    getSparkUI(ssc).detachHandler(staticHandler)
+    staticHandler = null
   }
 }