Package org.mapfish.print.processor.map

Class CreateMapPagesProcessor

java.lang.Object
org.mapfish.print.processor.AbstractProcessor<CreateMapPagesProcessor.Input,CreateMapPagesProcessor.Output>
org.mapfish.print.processor.map.CreateMapPagesProcessor
All Implemented Interfaces:
ConfigurationObject, Processor<CreateMapPagesProcessor.Input,CreateMapPagesProcessor.Output>, ProvideAttributes, RequireAttributes
public class CreateMapPagesProcessor extends AbstractProcessor<CreateMapPagesProcessor.Input,CreateMapPagesProcessor.Output> implements ProvideAttributes, RequireAttributes
Processor used to display a map on multiple pages.

This processor will take the defined map attribute and using the geometry defined in the map attribute's area of interest, will create an Iterable<Values> each of which contains:

  • a new definition of a map attribute
  • name value which is a string that roughly describes which part of the main map this sub-map is
  • left value which is the name of the sub-map to the left of the current map
  • right value which is the name of the sub-map to the right of the current map
  • top value which is the name of the sub-map to the top of the current map
  • bottom value which is the name of the sub-map to the bottom of the current map

The iterable of values can be consumed by a !createDataSource processor and as a result be put in the report (or one of the sub-reports) table. One must be careful as this can result in truly giant reports.

See also: !paging attribute [[examples=paging]]

  • Constructor Details

    • CreateMapPagesProcessor

      protected CreateMapPagesProcessor()
      Constructor.

  • Method Details

    • extraValidation

      protected void extraValidation(List<Throwable> validationErrors, Configuration configuration)
      Description copied from class: AbstractProcessor
      Perform any extra validation a subclass may need to perform.
      Specified by:
      extraValidation in class AbstractProcessor<CreateMapPagesProcessor.Input,CreateMapPagesProcessor.Output>
      Parameters:
      validationErrors - a list to add errors to so that all validation errors are reported as one.
      configuration - the containing configuration

    • createInputParameter

      public final CreateMapPagesProcessor.Input createInputParameter()
      Description copied from interface: Processor
      Returns a new/clean instance of a parameter object. This instance's will be inspected using reflection to find its public fields and the properties will be set from the Values object.

      The way the properties will be looked up is to

      1. take the bean property name
      2. map it using the input mapper, (if the input mapper does not have a mapping for the property then the unmapped property name is used)
      3. Look up the property value in the Values object using the mapped property name
      4. set the value on the instance created by this method. If the value is null an exception will be thrown UNLESS the HasDefaultValue annotation is on the field for the property.
      The populated instance will be passed to the execute method. It is imperative that a new instance is created each time because they will be used in a multi-threaded environment and thus the same processor instance may be ran in multiple threads with different instances of the parameter object.

      It is important to realize that super classes will also be analyzed, so care must be had with inheritance.

      Specified by:
      createInputParameter in interface Processor<CreateMapPagesProcessor.Input,CreateMapPagesProcessor.Output>

    • execute

      public final CreateMapPagesProcessor.Output execute(CreateMapPagesProcessor.Input values, Processor.ExecutionContext context)
      Description copied from interface: Processor
      Perform the process on the input attributes.
      Specified by:
      execute in interface Processor<CreateMapPagesProcessor.Input,CreateMapPagesProcessor.Output>
      Parameters:
      values - A Java object whose public fields are populated from the Values object (which is used for transferring properties between processors).
      context - The execution context for a print task.
      Returns:
      A Java object whose public fields will be put into the Values object. The key in the Values object is the name of the field or if there is a mapping in the Processor.getOutputMapperBiMap() map, the mapped name. The key is determined in a similar way as for the input object.

    • setAttribute

      public void setAttribute(String name, Attribute attribute)
      Set the map attribute.
      Specified by:
      setAttribute in interface RequireAttributes
      Parameters:
      name - the attribute name
      attribute - the attribute

    • getAttributes

      public Map<String,Attribute> getAttributes()
      Gets the attributes provided by the processor.
      Specified by:
      getAttributes in interface ProvideAttributes
      Returns:
      the attributes