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The following page has been changed by NoblePaul: http://wiki.apache.org/solr/DataImportHandler The comment on the change is: formatdate documenation ------------------------------------------------------------------------------ == A VariableResolver == A !VariableResolver is the component which replaces all those placholders such as `${<name>}`. It is a multilevel Map .Each namespace is a Map and namespaces are separated by periods (.) . eg if there is a placeholder ${item.ID} , 'item' is a nampespace (which is a map) and 'ID' is a value in that namespace. It is possible to nest namespaces like ${item.x.ID} where x could be another Map. A reference to the current !VariableResolver can be obtained from the Context. Or the object can be directly consumed by using ${<name>} in 'query' for RDMS queries or 'url' in Http . + === Custom formatting in query and url using Functions === + While the namespace concept is useful , the user may want to put some computed value into the query or url for example there is a Date object and your datasource accepts Date in some custom format . There are a few functions provided by the !DataImportHandler which can do some of these. + * ''formatDate'' : It is used like this `'${dataimporter.functions.formatDate(item.ID, yyyy-MM-dd HH:mm)}'` . The first argument can be a valid value from the !VariableResolver and the second cvalue can be a a format string (use !SimpledateFormat) . The first argument can be a computed value eg: `'${dataimporter.functions.formatDate('NOW-3DAYS', yyyy-MM-dd HH:mm)}'` and it uses the syntax of the datemath parser in Solr. (note that it must enclosed in single quotes) + +
