Class StatszZPageHandler

java.lang.Object

io.opencensus.contrib.zpages.ZPageHandler

io.opencensus.contrib.zpages.StatszZPageHandler

final class StatszZPageHandler
extends ZPageHandler

HTML page formatter for all exported Views.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
private static class	StatszZPageHandler.TreeNode

Field Summary

Fields

Modifier and Type	Field	Description
private final Set<View>	cachedViews
private static final String	CLASS_LARGER_TR
private final Map<String,Measure>	measures
private static final long	MILLIS_PER_SECOND
private static final Object	monitor
private static final long	NANOS_PER_MILLISECOND
private static final com.google.common.base.Splitter	PATH_SPLITTER
(package private) static final String	QUERY_PATH
private final StatszZPageHandler.TreeNode	root
private static final String	STATSZ_URL
private static final String	TABLE_HEADER_AGGREGATION
private static final String	TABLE_HEADER_BUCKET_SIZE
private static final String	TABLE_HEADER_COUNT
private static final String	TABLE_HEADER_DESCRIPTION
private static final String	TABLE_HEADER_DEV
private static final String	TABLE_HEADER_END
private static final String	TABLE_HEADER_HISTOGRAM
private static final String	TABLE_HEADER_LAST_VALUE
private static final String	TABLE_HEADER_MAX
private static final String	TABLE_HEADER_MEAN
private static final String	TABLE_HEADER_MEASURE
private static final String	TABLE_HEADER_MEASURE_TYPE
private static final String	TABLE_HEADER_MIN
private static final String	TABLE_HEADER_RANGE
private static final String	TABLE_HEADER_START
private static final String	TABLE_HEADER_SUM
private static final String	TABLE_HEADER_UNIT
private static final String	TABLE_HEADER_VIEW
private final ViewManager	viewManager

Constructor Summary

Constructors

Modifier	Constructor	Description
private	StatszZPageHandler(ViewManager viewManager)

Method Summary

Modifier and Type	Method	Description
(package private) static StatszZPageHandler	create(ViewManager viewManager)
private static void	emitDirectoryHeader(String path, PrintWriter out, Formatter formatter)
private void	emitDirectoryTable(StatszZPageHandler.TreeNode currentNode, String path, PrintWriter out, Formatter formatter)
private static void	emitHistogramBuckets(List<Double> bucketBoundaries, List<Long> bucketCounts, PrintWriter out, Formatter formatter)
void	emitHtml(Map<String,String> queryMap, OutputStream outputStream)	Emits the HTML generated page to the outputStream.
private void	emitHtmlBody(Map<String,String> queryMap, PrintWriter out, Formatter formatter)
private static void	emitMeasureTable(Map<String,Measure> measures, PrintWriter out, Formatter formatter)
private static void	emitMeasureTableHeader(PrintWriter out, Formatter formatter)
private static void	emitMeasureTableRow(Measure measure, PrintWriter out, Formatter formatter)
private static void	emitStyles(PrintWriter out, Formatter formatter)
private static void	emitViewData(ViewData viewData, View.Name viewName, PrintWriter out, Formatter formatter)
private static void	emitViewDataRow(View view, Map.Entry<List<TagValue>, AggregationData> entry, PrintWriter out, Formatter formatter)
private static void	emitViewDataTableHeader(View view, PrintWriter out, Formatter formatter)
private static void	emitViewInfo(View view, ViewData.AggregationWindowData windowData, PrintWriter out, Formatter formatter)
private static void	emitViewInfoHeader(PrintWriter out, Formatter formatter)
private StatszZPageHandler.TreeNode	findNode(String path)
String	getUrlPath()	Returns the URL path that should be used to register this page.
private static void	groupViewsByDirectoriesAndGetMeasures(Set<View> views, StatszZPageHandler.TreeNode root, Map<String,Measure> measures, Set<View> cachedViews)
private static Date	toDate(Timestamp timestamp)

Methods inherited from class Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

monitor

private static final Object monitor

viewManager

private final ViewManager viewManager

measures

private final Map<String,Measure> measures

cachedViews

private final Set<View> cachedViews

root

private final StatszZPageHandler.TreeNode root

QUERY_PATH

static final String QUERY_PATH

See Also:

• Constant Field Values

STATSZ_URL

private static final String STATSZ_URL

See Also:

• Constant Field Values

CLASS_LARGER_TR

private static final String CLASS_LARGER_TR

See Also:

• Constant Field Values

TABLE_HEADER_VIEW

private static final String TABLE_HEADER_VIEW

See Also:

• Constant Field Values

TABLE_HEADER_DESCRIPTION

private static final String TABLE_HEADER_DESCRIPTION

See Also:

• Constant Field Values

TABLE_HEADER_MEASURE

private static final String TABLE_HEADER_MEASURE

See Also:

• Constant Field Values

TABLE_HEADER_AGGREGATION

private static final String TABLE_HEADER_AGGREGATION

See Also:

• Constant Field Values

TABLE_HEADER_START

private static final String TABLE_HEADER_START

See Also:

• Constant Field Values

TABLE_HEADER_END

private static final String TABLE_HEADER_END

See Also:

• Constant Field Values

TABLE_HEADER_UNIT

private static final String TABLE_HEADER_UNIT

See Also:

• Constant Field Values

TABLE_HEADER_MEASURE_TYPE

private static final String TABLE_HEADER_MEASURE_TYPE

See Also:

• Constant Field Values

TABLE_HEADER_SUM

private static final String TABLE_HEADER_SUM

See Also:

• Constant Field Values

TABLE_HEADER_COUNT

private static final String TABLE_HEADER_COUNT

See Also:

• Constant Field Values

TABLE_HEADER_MEAN

private static final String TABLE_HEADER_MEAN

See Also:

• Constant Field Values

TABLE_HEADER_MAX

private static final String TABLE_HEADER_MAX

See Also:

• Constant Field Values

TABLE_HEADER_MIN

private static final String TABLE_HEADER_MIN

See Also:

• Constant Field Values

TABLE_HEADER_DEV

private static final String TABLE_HEADER_DEV

See Also:

• Constant Field Values

TABLE_HEADER_HISTOGRAM

private static final String TABLE_HEADER_HISTOGRAM

See Also:

• Constant Field Values

TABLE_HEADER_RANGE

private static final String TABLE_HEADER_RANGE

See Also:

• Constant Field Values

TABLE_HEADER_BUCKET_SIZE

private static final String TABLE_HEADER_BUCKET_SIZE

See Also:

• Constant Field Values

TABLE_HEADER_LAST_VALUE

private static final String TABLE_HEADER_LAST_VALUE

See Also:

• Constant Field Values

MILLIS_PER_SECOND

private static final long MILLIS_PER_SECOND

See Also:

• Constant Field Values

NANOS_PER_MILLISECOND

private static final long NANOS_PER_MILLISECOND

See Also:

• Constant Field Values

PATH_SPLITTER

private static final com.google.common.base.Splitter PATH_SPLITTER

Constructor Details

StatszZPageHandler

private StatszZPageHandler(ViewManager viewManager)

Method Details

getUrlPath

public String getUrlPath()

Description copied from class: ZPageHandler

Returns the URL path that should be used to register this page.

Specified by:

getUrlPath in class ZPageHandler

Returns:

the URL path that should be used to register this page.

emitHtml

public void emitHtml(Map<String,String> queryMap,
 OutputStream outputStream)

Description copied from class: ZPageHandler

Emits the HTML generated page to the outputStream.

Specified by:

emitHtml in class ZPageHandler

Parameters:

queryMap - the query components map.

outputStream - the output OutputStream.

emitStyles

private static void emitStyles(PrintWriter out,
 Formatter formatter)

emitHtmlBody

private void emitHtmlBody(Map<String,String> queryMap,
 PrintWriter out,
 Formatter formatter)

groupViewsByDirectoriesAndGetMeasures

private static void groupViewsByDirectoriesAndGetMeasures(Set<View> views,
 StatszZPageHandler.TreeNode root,
 Map<String,Measure> measures,
 Set<View> cachedViews)

emitDirectoryTable

private void emitDirectoryTable(StatszZPageHandler.TreeNode currentNode,
 String path,
 PrintWriter out,
 Formatter formatter)

findNode

private StatszZPageHandler.TreeNode findNode(String path)

emitDirectoryHeader

private static void emitDirectoryHeader(String path,
 PrintWriter out,
 Formatter formatter)

emitViewData

private static void emitViewData(ViewData viewData,
 View.Name viewName,
 PrintWriter out,
 Formatter formatter)

emitViewInfo

private static void emitViewInfo(View view,
 ViewData.AggregationWindowData windowData,
 PrintWriter out,
 Formatter formatter)

toDate

private static Date toDate(Timestamp timestamp)

emitViewInfoHeader

private static void emitViewInfoHeader(PrintWriter out,
 Formatter formatter)

emitViewDataTableHeader

private static void emitViewDataTableHeader(View view,
 PrintWriter out,
 Formatter formatter)

emitViewDataRow

private static void emitViewDataRow(View view,
 Map.Entry<List<TagValue>, AggregationData> entry,
 PrintWriter out,
 Formatter formatter)

emitHistogramBuckets

private static void emitHistogramBuckets(List<Double> bucketBoundaries,
 List<Long> bucketCounts,
 PrintWriter out,
 Formatter formatter)

emitMeasureTable

private static void emitMeasureTable(Map<String,Measure> measures,
 PrintWriter out,
 Formatter formatter)

emitMeasureTableHeader

private static void emitMeasureTableHeader(PrintWriter out,
 Formatter formatter)

emitMeasureTableRow

private static void emitMeasureTableRow(Measure measure,
 PrintWriter out,
 Formatter formatter)

create

static StatszZPageHandler create(ViewManager viewManager)