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Java Source Code / Java Documentation » Content Management System » apache lenya 2.0 » org.apache.cocoon.components.source.impl

Source Cross Reference Class Diagram Java Document (Java Doc)

org.apache.cocoon.components.source.impl .AbstractImageSourceInspector

All known Subclasses:   org.apache.cocoon.components.source.impl .JPEGSourceInspector,  org.apache.cocoon.components.source.impl .GIFSourceInspector,
AbstractImageSourceInspector
abstract public class AbstractImageSourceInspector extends AbstractLogEnabled implements SourceInspector(Code)
Abstract base class for inspectors that can calculate the size of an image of a particular type.
author:
   Unico Hommes

Field Summary
final public static String IMAGE_HEIGHT_PROPERTY_NAME
     height property name.
final public static String IMAGE_WIDTH_PROPERTY_NAME
     width property name.
final public static String PROPERTY_NS
     The namespace uri of the properties exposed by this SourceInspector.

Constructor Summary
public AbstractImageSourceInspector()


Method Summary
final public String[] getHandledPropertyTypes()

abstract protected int[] getImageSize(Source source)
     Calculate the width and the height of the image represented by source.
Parameters:
  source - the Source to inspect.
final public SourceProperty[] getSourceProperties(Source source)

final public SourceProperty getSourceProperty(Source source, String namespace, String name)

public SourceValidity getValidity(Source source)

final public boolean handlesProperty(String namespace, String name)
     Check whether this inspector handles properties of the given kind.
abstract protected boolean isImageFileType(Source source)
     Inspects the input stream to verify this is in fact a file of the type that this inspector handles.
abstract protected boolean isImageMimeType(Source source)
     Checks whether the mime mapping yields the type this inspector handles.

Field Detail
IMAGE_HEIGHT_PROPERTY_NAME
final public static String IMAGE_HEIGHT_PROPERTY_NAME(Code)
height property name.

IMAGE_WIDTH_PROPERTY_NAME
final public static String IMAGE_WIDTH_PROPERTY_NAME(Code)
width property name.

PROPERTY_NS
final public static String PROPERTY_NS(Code)
The namespace uri of the properties exposed by this SourceInspector.
The value is http://apache.org/cocoon/inspector/image/1.0.

Constructor Detail
AbstractImageSourceInspector
public AbstractImageSourceInspector()(Code)

Method Detail
getHandledPropertyTypes
final public String[] getHandledPropertyTypes()(Code)

getImageSize
abstract protected int[] getImageSize(Source source) throws SourceException(Code)
Calculate the width and the height of the image represented by source.
Parameters:
  source - the Source to inspect. array carrying the calculated width parameterin its 0 index, the height under index 1.

getSourceProperties
final public SourceProperty[] getSourceProperties(Source source) throws SourceException(Code)

getSourceProperty
final public SourceProperty getSourceProperty(Source source, String namespace, String name) throws SourceException(Code)

getValidity
public SourceValidity getValidity(Source source)(Code)
Returns NOPValidity

handlesProperty
final public boolean handlesProperty(String namespace, String name)(Code)
Check whether this inspector handles properties of the given kind.

isImageFileType
abstract protected boolean isImageFileType(Source source) throws SourceException(Code)
Inspects the input stream to verify this is in fact a file of the type that this inspector handles.
Parameters:
  source - the Source to test

isImageMimeType
abstract protected boolean isImageMimeType(Source source)(Code)
Checks whether the mime mapping yields the type this inspector handles.
Parameters:
  source - the Source to test

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