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## fr.gouv.culture.sdx.pipeline
Class AbstractPipeline

    java.lang.Object
      org.apache.avalon.framework.logger.AbstractLogEnabled
          org.apache.cocoon.xml.AbstractXMLProducer
              org.apache.cocoon.xml.AbstractXMLPipe
                  fr.gouv.culture.sdx.utils.xml.AbstractSdxXMLPipe
                      fr.gouv.culture.sdx.pipeline.AbstractPipeline

All Implemented Interfaces:
  org.apache.avalon.framework.configuration.Configurable, org.xml.sax.ContentHandler, org.apache.avalon.framework.context.Contextualizable, Describable, Encodable, Identifiable, org.xml.sax.ext.LexicalHandler, Localizable, org.apache.avalon.framework.logger.LogEnabled, Pipeline, org.apache.avalon.excalibur.pool.Poolable, org.apache.avalon.excalibur.pool.Recyclable, SdxObject, org.apache.avalon.framework.service.Serviceable, org.apache.cocoon.xml.XMLConsumer, org.apache.excalibur.xml.sax.XMLConsumer, org.apache.excalibur.xml.sax.XMLizable, org.apache.cocoon.xml.XMLPipe, org.apache.cocoon.xml.XMLProducer

Direct Known Subclasses:
  GenericPipeline

public abstract class AbstractPipeline
extends AbstractSdxXMLPipe
implements Pipeline

An abstract implementation of a Pipeline for manipulation of SAX events

Nested Class Summary

Nested classes inherited from class fr.gouv.culture.sdx.utils.SdxObject
`SdxObject.ConfigurationNode`

Field Summary
`protected java.lang.String` | `keepStep`
`protected java.util.LinkedList` | `transformations` A list of the transformations that make up this pipeline.
`protected java.util.Vector` | `transformsList` A list of the transformations that make up this pipeline.

Fields inherited from class fr.gouv.culture.sdx.utils.xml.AbstractSdxXMLPipe
`_configuration, _context, _description, _encoding, _id, _locale, _logger, _manager, _xmlizable_objects, _xmlLang, isToSaxInitialized`

Fields inherited from class org.apache.cocoon.xml.AbstractXMLProducer
`contentHandler, EMPTY_CONTENT_HANDLER, lexicalHandler, xmlConsumer`

Fields inherited from interface fr.gouv.culture.sdx.pipeline.Pipeline
`CLASS_NAME_SUFFIX, PACKAGE_QUALNAME`

Fields inherited from interface fr.gouv.culture.sdx.utils.Encodable
`DEFAULT_ENCODING`

Constructor Summary
`AbstractPipeline()`

Method Summary
`void` | `addTransformation(Transformation t)` Adds a transformation to the pipeline and sets the consumer of the last transformation to be the newly added transformation.
`void` | `configure(org.apache.avalon.framework.configuration.Configuration configuration)` Configures the pipeline.
`protected java.lang.String` | `getClassNameSuffix()` Sub classes should element this method to return their class name suffix for SAX output
`org.apache.avalon.framework.parameters.Parameters` | `getParameters()` Returns the paramters for this pipeline
`byte[]` | `getTransformedBytes()` Returns a byte array which contains the data of a transformation step.
`java.io.File` | `getTransformedFile()` Returns a file which contains the data of a transformation step.
`protected boolean` | `initToSax()` Init the DefaultContext class _xmlizable_objects with the objects in order to describ them in XML
`protected void` | `initVolatileObjectsToSax()` Init the LinkedHashMap _xmlizable_volatile_objects with the objects in order to describ them in XML Some objects need to be refresh each time a toSAX is called
`Pipeline` | `newInstance()` Returns a new instance of this object
`void` | `setConsumer(org.apache.cocoon.xml.XMLConsumer xmlConsumer)` Sets the consumer of the pipeline.
`void` | `setParameters(org.apache.avalon.framework.parameters.Parameters params)` Sets the Parameters for each step in the Pipeline
`protected void` | `setParametersToTransformations(org.apache.avalon.framework.parameters.Parameters parameters)`
`protected void` | `verifyConfigurationParameters(org.apache.avalon.framework.parameters.Parameters params)`

Methods inherited from class fr.gouv.culture.sdx.utils.xml.AbstractSdxXMLPipe
`configureDescription, contextualize, enableLogging, getBaseAttributes, getConfiguration, getContext, getDescription, getEncoding, getId, getLocale, getLog, getServiceManager, getXmlLang, service, setDescription, setEncoding, setId, setLocale, setUpSdxObject, setUpSdxObject, setXmlLang, toSAX, verifyConfigurationResources`

Methods inherited from class org.apache.cocoon.xml.AbstractXMLPipe
`characters, comment, endCDATA, endDocument, endDTD, endElement, endEntity, endPrefixMapping, ignorableWhitespace, processingInstruction, setDocumentLocator, skippedEntity, startCDATA, startDocument, startDTD, startElement, startEntity, startPrefixMapping`

Methods inherited from class org.apache.cocoon.xml.AbstractXMLProducer
`recycle, setContentHandler, setLexicalHandler`

Methods inherited from class org.apache.avalon.framework.logger.AbstractLogEnabled
`getLogger, setupLogger, setupLogger, setupLogger`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Methods inherited from interface org.xml.sax.ContentHandler
`characters, endDocument, endElement, endPrefixMapping, ignorableWhitespace, processingInstruction, setDocumentLocator, skippedEntity, startDocument, startElement, startPrefixMapping`

Methods inherited from interface org.xml.sax.ext.LexicalHandler
`comment, endCDATA, endDTD, endEntity, startCDATA, startDTD, startEntity`

Methods inherited from interface fr.gouv.culture.sdx.utils.SdxObject
`getLog`

Methods inherited from interface org.apache.avalon.framework.logger.LogEnabled
`enableLogging`

Methods inherited from interface org.apache.avalon.framework.context.Contextualizable
`contextualize`

Methods inherited from interface org.apache.avalon.framework.service.Serviceable
`service`

Methods inherited from interface fr.gouv.culture.sdx.utils.Identifiable
`getId, setId`

Methods inherited from interface fr.gouv.culture.sdx.utils.Describable
`getDescription, setDescription`

Methods inherited from interface fr.gouv.culture.sdx.utils.Encodable
`getEncoding, setEncoding`

Methods inherited from interface fr.gouv.culture.sdx.utils.Localizable
`getLocale, getXmlLang, setLocale, setXmlLang`

Methods inherited from interface org.apache.excalibur.xml.sax.XMLizable
`toSAX`

Field Detail

### transformations

    protected java.util.LinkedList transformations

  A list of the transformations that make up this pipeline.

### transformsList

    protected java.util.Vector transformsList

  A list of the transformations that make up this pipeline.

### keepStep

    protected java.lang.String keepStep

Constructor Detail

### AbstractPipeline

    public AbstractPipeline()

Method Detail

### configure

    public void configure(org.apache.avalon.framework.configuration.Configuration configuration)
                   throws org.apache.avalon.framework.configuration.ConfigurationException

  Configures the pipeline.

  Specified by:
    `configure` in interface `org.apache.avalon.framework.configuration.Configurable`
  Overrides:
    `configure` in class `AbstractSdxXMLPipe`
  Parameters:
    `configuration` - The configuration object provided from a document base object.

    Retrieves the children elements named "transformation" and builds a transformation object for each element. Currently the only supported transformation type is "xslt".

    Sample configuration snippet:

    <sdx:pipeline sdx:id = "sdxIndexationPipeline">

    <sdx:transformation src = "path to stylesheet, can be absolute or relative to the directory containing this file" sdx:id = "step2" sdx:type = "xslt"/>

    <sdx:transformation src = "path to stylesheet, can be absolute or relative to the directory containing this file" sdx:id = "step3" sdx:type = "xslt" keep = "true"/>

    </sdx:pipeline>

  Throws:
    `org.apache.avalon.framework.configuration.ConfigurationException`

### verifyConfigurationParameters

    protected void verifyConfigurationParameters(org.apache.avalon.framework.parameters.Parameters params)

### addTransformation

    public void addTransformation(Transformation t)
                           throws SDXException

  Adds a transformation to the pipeline and sets the consumer of the last transformation to be the newly added transformation.

  Specified by:
    `addTransformation` in interface `Pipeline`
  Parameters:
    `t` - The transformation to be added.
  Throws:
    `SDXException`

### setConsumer

    public void setConsumer(org.apache.cocoon.xml.XMLConsumer xmlConsumer)

  Sets the consumer of the pipeline.

  Specified by:
    `setConsumer` in interface `org.apache.cocoon.xml.XMLProducer`
  Parameters:
    `xmlConsumer` - The XMLConsumer for the LAST step of the pipeline

### setParameters

    public void setParameters(org.apache.avalon.framework.parameters.Parameters params)

  Sets the Parameters for each step in the Pipeline

  Specified by:
    `setParameters` in interface `Pipeline`
  Parameters:
    `params` - The Parameters to use for each transformation step.

    Each transformation step in the pipeline can call (getParameters() defined in the Transformation interface) and make use this Parameters object as needed before pipeline processing begins.

### setParametersToTransformations

    protected void setParametersToTransformations(org.apache.avalon.framework.parameters.Parameters parameters)

### newInstance

    public Pipeline newInstance()
                         throws SDXException

  Returns a new instance of this object

  Specified by:
    `newInstance` in interface `Pipeline`
  Returns:
    A new instance of this object
  Throws:
    `SDXException`

### getParameters

    public org.apache.avalon.framework.parameters.Parameters getParameters()

  Returns the paramters for this pipeline

  Specified by:
    `getParameters` in interface `Pipeline`

### getTransformedBytes

    public byte[] getTransformedBytes()

  Returns a byte array which contains the data of a transformation step. The data will only be present after a pipeline is executed, if no transformation data is retained `null` will be returned

  Specified by:
    `getTransformedBytes` in interface `Pipeline`
  Returns:

### getTransformedFile

    public java.io.File getTransformedFile()
                                    throws SDXException

  Returns a file which contains the data of a transformation step. The data will only be present after a pipeline is executed, if no transformation data is retained `null` will be returned

  Specified by:
    `getTransformedFile` in interface `Pipeline`
  Throws:
    `SDXException`

### getClassNameSuffix

    protected java.lang.String getClassNameSuffix()

  Description copied from class: `AbstractSdxXMLPipe`
  Sub classes should element this method to return their class name suffix for SAX output

  Specified by:
    `getClassNameSuffix` in class `AbstractSdxXMLPipe`

### initToSax

    protected boolean initToSax()

  Description copied from class: `AbstractSdxXMLPipe`
  Init the DefaultContext class _xmlizable_objects with the objects in order to describ them in XML

  Specified by:
    `initToSax` in class `AbstractSdxXMLPipe`

### initVolatileObjectsToSax

    protected void initVolatileObjectsToSax()

  Init the LinkedHashMap _xmlizable_volatile_objects with the objects in order to describ them in XML Some objects need to be refresh each time a toSAX is called

  Specified by:
    `initVolatileObjectsToSax` in class `AbstractSdxXMLPipe`

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