org.opencms.xml.content
Class CmsXmlContentFactory

java.lang.Object
  org.opencms.xml.content.CmsXmlContentFactory

public final class CmsXmlContentFactory
extends java.lang.Object

Provides factory methods to unmarshal (read) an XML content object.

Since:

6.0.0

Version:

$Revision: 1.20 $

Author:

Alexander Kandzior

Method Summary

static CmsXmlContent	createDocument(CmsObject cms, java.util.Locale locale, java.lang.String modelUri) Create a new instance of an XML content based on the given default content, hat will have all language nodes of the default content and ensures the presence of the given locale.
static CmsXmlContent	createDocument(CmsObject cms, java.util.Locale locale, java.lang.String encoding, CmsXmlContentDefinition contentDefinition) Create a new instance of an XML content based on the given content definiton, that will have one language node for the given locale all initialized with default values.
static CmsXmlContent	unmarshal(CmsObject cms, byte[] xmlData, java.lang.String encoding, org.xml.sax.EntityResolver resolver) Factory method to unmarshal (generate) a XML content instance from a byte array that contains XML data.
static CmsXmlContent	unmarshal(CmsObject cms, CmsFile file) Factory method to unmarshal (read) a XML content instance from a OpenCms VFS file that contains XML data.
static CmsXmlContent	unmarshal(CmsObject cms, CmsFile file, boolean keepEncoding) Factory method to unmarshal (read) a XML content instance from a OpenCms VFS file that contains XML data, using wither the encoding set in the XML file header, or the encoding set in the VFS file property.
static CmsXmlContent	unmarshal(CmsObject cms, CmsResource resource, javax.servlet.ServletRequest req) Factory method to unmarshal (read) a XML content instance from a resource, using the request attributes as cache.
static CmsXmlContent	unmarshal(CmsObject cms, org.dom4j.Document document, java.lang.String encoding, org.xml.sax.EntityResolver resolver) Factory method to unmarshal (generate) a XML content instance from a XML document.
static CmsXmlContent	unmarshal(CmsObject cms, java.lang.String xmlData, java.lang.String encoding, org.xml.sax.EntityResolver resolver) Factory method to unmarshal (generate) a XML content instance from a String that contains XML data.
static CmsXmlContent	unmarshal(java.lang.String xmlData, java.lang.String encoding, org.xml.sax.EntityResolver resolver) Factory method to unmarshal (generate) a XML content instance from a String that contains XML data.

Methods inherited from class java.lang.Object

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

Method Detail

createDocument

public static CmsXmlContent createDocument(CmsObject cms,
                                           java.util.Locale locale,
                                           java.lang.String modelUri)
                                    throws CmsException

Create a new instance of an XML content based on the given default content, hat will have all language nodes of the default content and ensures the presence of the given locale.

The given encoding is used when marshalling the XML again later.

Parameters:

cms - the current users OpenCms content

locale - the locale to generate the default content for

modelUri - the absolute path to the XML content file acting as model

Returns:

the created XML content

Throws:

CmsException - in case the model file is not found or not valid

createDocument

public static CmsXmlContent createDocument(CmsObject cms,
                                           java.util.Locale locale,
                                           java.lang.String encoding,
                                           CmsXmlContentDefinition contentDefinition)

Create a new instance of an XML content based on the given content definiton, that will have one language node for the given locale all initialized with default values.

The given encoding is used when marshalling the XML again later.

Parameters:

cms - the current users OpenCms content

locale - the locale to generate the default content for

encoding - the encoding to use when marshalling the XML content later

contentDefinition - the content definiton to create the content for

Returns:

the created XML content

unmarshal

public static CmsXmlContent unmarshal(CmsObject cms,
                                      byte[] xmlData,
                                      java.lang.String encoding,
                                      org.xml.sax.EntityResolver resolver)
                               throws CmsXmlException

Factory method to unmarshal (generate) a XML content instance from a byte array that contains XML data.

When unmarshalling, the encoding is read directly from the XML header of the byte array. The given encoding is used only when marshalling the XML again later.

Warning:
This method does not support requested historic versions, it always loads the most recent version. Use unmarshal(CmsObject, CmsResource, ServletRequest) for history support.

Parameters:

cms - the cms context

xmlData - the XML data in a byte array

encoding - the encoding to use when marshalling the XML content later

resolver - the XML entitiy resolver to use

Returns:

a XML content instance unmarshalled from the byte array

Throws:

CmsXmlException - if something goes wrong

unmarshal

public static CmsXmlContent unmarshal(CmsObject cms,
                                      CmsFile file)
                               throws CmsXmlException

Factory method to unmarshal (read) a XML content instance from a OpenCms VFS file that contains XML data.

Warning:
This method does not support requested historic versions, it always loads the most recent version. Use unmarshal(CmsObject, CmsResource, ServletRequest) for history support.

Parameters:

cms - the current cms object

file - the file with the XML data to unmarshal

Returns:

a XML page instance unmarshalled from the provided file

Throws:

CmsXmlException - if something goes wrong

unmarshal

public static CmsXmlContent unmarshal(CmsObject cms,
                                      CmsFile file,
                                      boolean keepEncoding)
                               throws CmsXmlException

Factory method to unmarshal (read) a XML content instance from a OpenCms VFS file that contains XML data, using wither the encoding set in the XML file header, or the encoding set in the VFS file property.

If you are not sure about the implications of the encoding issues, use unmarshal(CmsObject, CmsFile) instead.

Warning:
This method does not support requested historic versions, it always loads the most recent version. Use unmarshal(CmsObject, CmsResource, ServletRequest) for history support.

Parameters:

cms - the current cms object

file - the file with the XML data to unmarshal

keepEncoding - if true, the encoding spefified in the XML header is used, otherwise the encoding from the VFS file property is used

Returns:

a XML content instance unmarshalled from the provided file

Throws:

CmsXmlException - if something goes wrong

unmarshal

public static CmsXmlContent unmarshal(CmsObject cms,
                                      CmsResource resource,
                                      javax.servlet.ServletRequest req)
                               throws CmsXmlException,
                                      CmsLoaderException,
                                      CmsException

Factory method to unmarshal (read) a XML content instance from a resource, using the request attributes as cache.

Parameters:

cms - the current OpenCms context object

resource - the resource to unmarshal

req - the current request

Returns:

the unmarshaled xml content, or null if the given resource was not of type CmsResourceTypeXmlContent

Throws:

CmsException - in something goes wrong

CmsLoaderException - if no loader for the given resource type (CmsResource.getTypeId()) is available

CmsXmlException - if the given resource is not of type xml content

unmarshal

public static CmsXmlContent unmarshal(CmsObject cms,
                                      org.dom4j.Document document,
                                      java.lang.String encoding,
                                      org.xml.sax.EntityResolver resolver)

Factory method to unmarshal (generate) a XML content instance from a XML document.

The given encoding is used when marshalling the XML again later.

Warning:
This method does not support requested historic versions, it always loads the most recent version. Use unmarshal(CmsObject, CmsResource, ServletRequest) for history support.

Parameters:

cms - the cms context, if null no link validation is performed

document - the XML document to generate the XML content from

encoding - the encoding to use when marshalling the XML content later

resolver - the XML entitiy resolver to use

Returns:

a XML content instance unmarshalled from the String

unmarshal

public static CmsXmlContent unmarshal(CmsObject cms,
                                      java.lang.String xmlData,
                                      java.lang.String encoding,
                                      org.xml.sax.EntityResolver resolver)
                               throws CmsXmlException

Factory method to unmarshal (generate) a XML content instance from a String that contains XML data.

The given encoding is used when marshalling the XML again later.

Warning:
This method does not support requested historic versions, it always loads the most recent version. Use unmarshal(CmsObject, CmsResource, ServletRequest) for history support.

Parameters:

cms - the cms context, if null no link validation is performed

xmlData - the XML data in a String

encoding - the encoding to use when marshalling the XML content later

resolver - the XML entitiy resolver to use

Returns:

a XML content instance unmarshalled from the String

Throws:

CmsXmlException - if something goes wrong

unmarshal

public static CmsXmlContent unmarshal(java.lang.String xmlData,
                                      java.lang.String encoding,
                                      org.xml.sax.EntityResolver resolver)
                               throws CmsXmlException

Factory method to unmarshal (generate) a XML content instance from a String that contains XML data.

The given encoding is used when marshalling the XML again later.

Since no CmsObject is available, no link validation is performed!

Warning:
This method does not support requested historic versions, it always loads the most recent version. Use unmarshal(CmsObject, CmsResource, ServletRequest) for history support.

Parameters:

xmlData - the XML data in a String

encoding - the encoding to use when marshalling the XML content later

resolver - the XML entity resolver to use

Returns:

a XML content instance unmarshalled from the String

Throws:

CmsXmlException - if something goes wrong