Package io.jmix.reports.yarg.loaders.impl

Class JsonDataLoader

java.lang.Object

io.jmix.reports.yarg.loaders.impl.AbstractDataLoader

io.jmix.reports.yarg.loaders.impl.JsonDataLoader

All Implemented Interfaces:

ReportDataLoader

Direct Known Subclasses:

JmixJsonDataLoader

public class JsonDataLoader
extends AbstractDataLoader

Loads data from json string Uses JsonPath to access necessary parts of json object Example: JSON: { "store": { "book": [ { "category": "reference", "author": "Nigel Rees", "title": "Sayings of the Century", "price": 8.95 }, { "category": "fiction", "author": "Evelyn Waugh", "title": "Sword of Honour", "price": 12.99, "isbn": "0-553-21311-3" } ], "bicycle": { "color": "red", "price": 19.95 } } } Query string: parameter=param1 $.store.book[*] We get json string from parameter param1 and select all "book" objects from the "store" object

Field Summary

Fields

Modifier and Type	Field	Description
protected Pattern	parameterPattern

Fields inherited from class io.jmix.reports.yarg.loaders.impl.AbstractDataLoader

fieldsConverter, parametersConverter

Constructor Summary

Constructors

Constructor	Description
JsonDataLoader()

Method Summary

Modifier and Type	Method	Description
protected void	addParentBandDataToParameters(BandData parentBand, Map<String,Object> currentParams)
protected void	addParentBandDataToParametersRecursively(BandData parentBand, Map<String,Object> currentParams)
protected Map<String,Object>	copyParameters(Map<String,Object> parametersToCopy)
protected Map<String,Object>	createMap(Map jsonObject)
protected List<Map<String,Object>>	extractScriptResult(String jsonData, String jsonPathScript, ReportQuery reportQuery)
protected String	getParameterName(Matcher matcher)
List<Map<String,Object>>	loadData(ReportQuery reportQuery, BandData parentBand, Map<String,Object> reportParams)	This method MUST return list of mutable maps.
protected List<Map<String,Object>>	loadDataFromScript(ReportQuery reportQuery, Map<String,Object> currentParams, Matcher matcher, Object parameterValue)
protected void	parseScriptResult(List<Map<String,Object>> result, String script, Object scriptResult)

Methods inherited from class io.jmix.reports.yarg.loaders.impl.AbstractDataLoader

convertOutputValue, convertParameter, getFieldsConverter, getParametersConverter, setFieldsConverter, setParametersConverter

Methods inherited from class java.lang.Object

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

Field Details

parameterPattern

protected Pattern parameterPattern

Constructor Details

JsonDataLoader

public JsonDataLoader()

Method Details

loadData

public List<Map<String,Object>> loadData(ReportQuery reportQuery,
 BandData parentBand,
 Map<String,Object> reportParams)

Description copied from interface: ReportDataLoader

This method MUST return list of mutable maps. We need mutability to put there some values implicitly.

loadDataFromScript

protected List<Map<String,Object>> loadDataFromScript(ReportQuery reportQuery,
 Map<String,Object> currentParams,
 Matcher matcher,
 Object parameterValue)

extractScriptResult

protected List<Map<String,Object>> extractScriptResult(String jsonData,
 String jsonPathScript,
 ReportQuery reportQuery)

parseScriptResult

protected void parseScriptResult(List<Map<String,Object>> result,
 String script,
 Object scriptResult)

getParameterName

protected String getParameterName(Matcher matcher)

createMap

protected Map<String,Object> createMap(Map jsonObject)

copyParameters

protected Map<String,Object> copyParameters(Map<String,Object> parametersToCopy)

addParentBandDataToParametersRecursively

protected void addParentBandDataToParametersRecursively(BandData parentBand,
 Map<String,Object> currentParams)

addParentBandDataToParameters

protected void addParentBandDataToParameters(BandData parentBand,
 Map<String,Object> currentParams)

Overrides:

addParentBandDataToParameters in class AbstractDataLoader