Package org.mapfish.print.processor.jasper

Class HttpImageResolver

java.lang.Object

org.mapfish.print.processor.jasper.HttpImageResolver

All Implemented Interfaces:

ConfigurationObject, TableColumnConverter<BufferedImage>

public final class HttpImageResolver
extends Object
implements TableColumnConverter<BufferedImage>

Interprets text in a table cell as an image URL.

See also: Configuration of tables with HTML images [[examples=datasource_many_dynamictables_legend]]

Constructor Summary

Constructors

Constructor	Description
HttpImageResolver()	Constructor.

Method Summary

Modifier and Type	Method	Description
boolean	canConvert(String text)	Returns true if the converter can convert the given input.
BufferedImage	resolve(MfClientHttpRequestFactory requestFactory, String text)	Convert the value.
void	setUrlExtractor(String pattern)	Sets the RegExp pattern to use for extracting the url from the text.
void	setUrlGroup(int urlGroup)	Select the group in the regular expression that contains the url.
void	validate(List<Throwable> validationErrors, Configuration configuration)	validate that the configuration was correct.

Methods inherited from class java.lang.Object

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

Constructor Details

HttpImageResolver

public HttpImageResolver()

Constructor.

Method Details

setUrlExtractor

public void setUrlExtractor(String pattern)

Sets the RegExp pattern to use for extracting the url from the text. By default, the whole string is used.

For example: .*&img src="([^"]+)".*

Parameters:

pattern - The url extractor regular expression. Default is "(.*)"

setUrlGroup

public void setUrlGroup(int urlGroup)

Select the group in the regular expression that contains the url.

Parameters:

urlGroup - the index of the group (starting at 1) that contains the url.

resolve

public BufferedImage resolve(MfClientHttpRequestFactory requestFactory,
 String text)

Description copied from interface: TableColumnConverter

Convert the value.

Specified by:

resolve in interface TableColumnConverter<BufferedImage>

Parameters:

requestFactory - for fetching file and http resources.

text - the cell value.

validate

public void validate(List<Throwable> validationErrors,
 Configuration configuration)

Description copied from interface: ConfigurationObject

validate that the configuration was correct.

Specified by:

validate in interface ConfigurationObject

Parameters:

validationErrors - a list to add any detected errors to.

configuration - the containing configuration

canConvert

public boolean canConvert(String text)

Description copied from interface: TableColumnConverter

Returns true if the converter can convert the given input.

Specified by:

canConvert in interface TableColumnConverter<BufferedImage>

Parameters:

text - the input to convert.