Class OutputValueSwitch
java.lang.Object
com.univocity.parsers.common.processor.RowWriterProcessorSwitch
com.univocity.parsers.common.processor.OutputValueSwitch
- All Implemented Interfaces:
RowWriterProcessor<Object>
A concrete implementation of
RowWriterProcessorSwitch
that allows switching among different implementations of
RowWriterProcessor
based on values found on rows to be written to an output-
Nested Class Summary
Nested Classes -
Field Summary
FieldsModifier and TypeFieldDescriptionprivate final int
private Comparator
private OutputValueSwitch.Switch
private final String
private OutputValueSwitch.Switch
private OutputValueSwitch.Switch[]
private Class[]
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Constructor Summary
ConstructorsConstructorDescriptionCreates a switch that will analyze the first column of output rows to determine whichRowWriterProcessor
to use for each output rowOutputValueSwitch
(int columnIndex) Creates a switch that will analyze a column of output rows to determine whichRowWriterProcessor
to use.OutputValueSwitch
(String headerName) Creates a switch that will analyze a column of output rows to determine whichRowWriterProcessor
to use.OutputValueSwitch
(String headerName, int columnIndex) Creates a switch that will analyze a column of output rows to determine whichRowWriterProcessor
to use. -
Method Summary
Modifier and TypeMethodDescriptionprivate void
addSwitch
(OutputValueSwitch.Switch newSwitch) <T> void
addSwitchForType
(Class<T> beanType) Associates aRowWriterProcessor
implementation with an expected value to be matched in the column provided in the constructor of this class.<T> void
addSwitchForType
(Class<T> beanType, int... indexesToUse) Associates aRowWriterProcessor
implementation with an expected value to be matched in the column provided in the constructor of this class.<T> void
addSwitchForType
(Class<T> beanType, String... headersToUse) Associates aRowWriterProcessor
implementation with an expected value to be matched in the column provided in the constructor of this class.void
addSwitchForValue
(Object value, RowWriterProcessor<Object[]> rowProcessor) Associates aRowWriterProcessor
implementation with an expected value to be matched in the column provided in the constructor of this class.void
addSwitchForValue
(Object value, RowWriterProcessor<Object[]> rowProcessor, int... indexesToUse) Associates aRowWriterProcessor
implementation with an expected value to be matched in the column provided in the constructor of this class.void
addSwitchForValue
(Object value, RowWriterProcessor<Object[]> rowProcessor, String... headersToUse) Associates aRowWriterProcessor
implementation with an expected value to be matched in the column provided in the constructor of this class.protected String
int
Returns the column index whose values will be used to switching from a row processor to another.protected NormalizedString[]
Returns the headers in use by the current row writer processor implementation, which can vary among row writer processors.getHeaders
(Object input) Returns the sequence of headers to use for processing an input record.getHeaders
(Map headerMapping, Map mapInput) Returns the sequence of headers to use for processing an input record represented by a map A map of headers can be optionally provided to assign a name to the keys of the input map.private NormalizedString[]
getHeadersFromSwitch
(Object value) protected int[]
Returns the indexes in use by the current row writer processor implementation, which can vary among row writer processors.private OutputValueSwitch.Switch
private String
getValidatedHeaderName
(String headerName) private int
getValidatedIndex
(int columnIndex) private <V> V
void
setComparator
(Comparator<?> comparator) Configures the switch to use a customComparator
to compare values in the column to analyze which is given in the constructor of this class.void
setDefaultSwitch
(RowWriterProcessor<Object[]> rowProcessor, int... indexesToUse) Defines a defaultRowWriterProcessor
implementation to use when no matching value is found in the output row.void
setDefaultSwitch
(RowWriterProcessor<Object[]> rowProcessor, String... headersToUse) Defines a defaultRowWriterProcessor
implementation to use when no matching value is found in the output row.protected RowWriterProcessor<?>
switchRowProcessor
(Object row) Analyzes an output row to determine whether or not the row writer processor implementation must be changedMethods inherited from class com.univocity.parsers.common.processor.RowWriterProcessorSwitch
getMinimumRowLength, rowProcessorSwitched, write, write
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Field Details
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defaultSwitch
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switches
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selectedSwitch
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types
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columnIndex
private final int columnIndex -
headerName
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comparator
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Constructor Details
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OutputValueSwitch
public OutputValueSwitch()Creates a switch that will analyze the first column of output rows to determine whichRowWriterProcessor
to use for each output row -
OutputValueSwitch
public OutputValueSwitch(int columnIndex) Creates a switch that will analyze a column of output rows to determine whichRowWriterProcessor
to use.- Parameters:
columnIndex
- the column index whose value will be used to determine whichRowWriterProcessor
to use for each output row.
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OutputValueSwitch
Creates a switch that will analyze a column of output rows to determine whichRowWriterProcessor
to use. When no column index is defined, the switch will use the first column of any input rows sent for writing.- Parameters:
headerName
- the column name whose value will be used to determine whichRowWriterProcessor
to use for each output row.
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OutputValueSwitch
Creates a switch that will analyze a column of output rows to determine whichRowWriterProcessor
to use.- Parameters:
headerName
- the column name whose value will be used to determine whichRowWriterProcessor
to use for each output row.columnIndex
- the position of an input column to use to perform the switch when no headers are available.
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Method Details
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getValidatedIndex
private int getValidatedIndex(int columnIndex) -
getValidatedHeaderName
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setComparator
Configures the switch to use a customComparator
to compare values in the column to analyze which is given in the constructor of this class.- Parameters:
comparator
- the comparator to use for matching values in the output column with the values provided inaddSwitchForValue(Object, RowWriterProcessor)
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setDefaultSwitch
Defines a defaultRowWriterProcessor
implementation to use when no matching value is found in the output row.- Parameters:
rowProcessor
- the default row writer processor implementationheadersToUse
- the (optional) sequence of headers to assign to the given row writer processor
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setDefaultSwitch
Defines a defaultRowWriterProcessor
implementation to use when no matching value is found in the output row.- Parameters:
rowProcessor
- the default row writer processor implementationindexesToUse
- the (optional) sequence of column indexes to assign to the given row writer processor
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getHeaders
Description copied from class:RowWriterProcessorSwitch
Returns the headers in use by the current row writer processor implementation, which can vary among row writer processors. Ifnull
, the headers defined inCommonSettings.getHeaders()
will be returned.- Overrides:
getHeaders
in classRowWriterProcessorSwitch
- Returns:
- the current sequence of headers to use.
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getIndexes
protected int[] getIndexes()Description copied from class:RowWriterProcessorSwitch
Returns the indexes in use by the current row writer processor implementation, which can vary among row writer processors. Ifnull
, the indexes of fields that have been selected usingCommonSettings.selectFields(String...)
orCommonSettings.selectIndexes(Integer...)
will be returned.- Overrides:
getIndexes
in classRowWriterProcessorSwitch
- Returns:
- the current sequence of indexes to use.
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getSwitch
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switchRowProcessor
Description copied from class:RowWriterProcessorSwitch
Analyzes an output row to determine whether or not the row writer processor implementation must be changed- Specified by:
switchRowProcessor
in classRowWriterProcessorSwitch
- Parameters:
row
- a record with data to be written to the output- Returns:
- the row writer processor implementation to use. If it is not the same as the one used by the previous row,
the returned row writer processor will be used, and the
RowWriterProcessorSwitch.rowProcessorSwitched(RowWriterProcessor, RowWriterProcessor)
method will be called.
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addSwitchForValue
public void addSwitchForValue(Object value, RowWriterProcessor<Object[]> rowProcessor, String... headersToUse) Associates aRowWriterProcessor
implementation with an expected value to be matched in the column provided in the constructor of this class.- Parameters:
value
- the value to match against the column of incoming output rows and trigger the usage of the given row writer processor implementation.rowProcessor
- the row writer processor implementation to use when the given value matches with the contents of the column provided in the constructor of this class.headersToUse
- the (optional) sequence of headers to assign to the given row writer processor
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addSwitchForValue
Associates aRowWriterProcessor
implementation with an expected value to be matched in the column provided in the constructor of this class.- Parameters:
value
- the value to match against the column of incoming output rows and trigger the usage of the given row writer processor implementation.rowProcessor
- the row writer processor implementation to use when the given value matches with the contents of the column provided in the constructor of this class.
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addSwitchForValue
public void addSwitchForValue(Object value, RowWriterProcessor<Object[]> rowProcessor, int... indexesToUse) Associates aRowWriterProcessor
implementation with an expected value to be matched in the column provided in the constructor of this class.- Parameters:
value
- the value to match against the column of incoming output rows and trigger the usage of the given row writer processor implementation.rowProcessor
- the row writer processor implementation to use when the given value matches with the contents of the column provided in the constructor of this class.indexesToUse
- the (optional) sequence of column indexes to assign to the given row writer processor
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addSwitchForType
Associates aRowWriterProcessor
implementation with an expected value to be matched in the column provided in the constructor of this class.- Type Parameters:
T
- the type of annotated java beans whose instances will be used to trigger the usage of a different format.- Parameters:
beanType
- the type of annotated java beans whose instances will be used to trigger the usage of a different format.headersToUse
- the (optional) sequence of headers to assign to the given row writer processor
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addSwitchForType
Associates aRowWriterProcessor
implementation with an expected value to be matched in the column provided in the constructor of this class.- Type Parameters:
T
- the type of annotated java beans whose instances will be used to trigger the usage of a different format.- Parameters:
beanType
- the type of annotated java beans whose instances will be used to trigger the usage of a different format.indexesToUse
- the (optional) sequence of column indexes to assign to the given row writer processor
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addSwitchForType
Associates aRowWriterProcessor
implementation with an expected value to be matched in the column provided in the constructor of this class.- Type Parameters:
T
- the type of annotated java beans whose instances will be used to trigger the usage of a different format.- Parameters:
beanType
- the type of annotated java beans whose instances will be used to trigger the usage of a different format.
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addSwitch
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getValue
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getHeadersFromSwitch
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getHeaders
Description copied from class:RowWriterProcessorSwitch
Returns the sequence of headers to use for processing an input record.- Specified by:
getHeaders
in classRowWriterProcessorSwitch
- Parameters:
input
- the record data- Returns:
- the sequence of headers to use when processing the given record.
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getHeaders
Description copied from class:RowWriterProcessorSwitch
Returns the sequence of headers to use for processing an input record represented by a map A map of headers can be optionally provided to assign a name to the keys of the input map. This is useful when the input map has keys will generate unwanted header names.- Specified by:
getHeaders
in classRowWriterProcessorSwitch
- Parameters:
headerMapping
- an optional map associating keys of the rowData map with expected header namesmapInput
- the record data- Returns:
- the sequence of headers to use when processing the given input map.
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getColumnIndex
public int getColumnIndex()Returns the column index whose values will be used to switching from a row processor to another.- Returns:
- the column index targeted by this switch.
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getSwitchValues
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describeSwitch
- Specified by:
describeSwitch
in classRowWriterProcessorSwitch
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