org.apache.cocoon.components.source
Class SourceDTO

java.lang.Object
  org.apache.cocoon.components.source.SourceDTO

All Implemented Interfaces:

InspectableSource, LockableSource, VersionableSource, ModifiableSource, ModifiableTraversableSource, MoveableSource, Source, TraversableSource

public class SourceDTO
extends Object
implements Source, ModifiableTraversableSource, MoveableSource, LockableSource, InspectableSource, VersionableSource

Data transfer object for a Source object.

Version:

CVS $Id: SourceDTO.html 1304258 2012-03-23 10:09:27Z ilgrosso $

Constructor Summary

SourceDTO(Source source)
Create a data transfer object for a Source.

SourceDTO(Source source, boolean deep)
Create a data transfer object for a Source.

Method Summary

void	addSourceLocks(SourceLock sourcelock) Add a lock to this source
boolean	canCancel(OutputStream stream) Can the data sent to an OutputStream returned by getOutputStream() be cancelled ?
void	cancel(OutputStream stream) Cancel the data sent to an OutputStream returned by getOutputStream().
void	copyTo(Source source) Copy the current source to a specified destination.
void	delete() Delete the source.
boolean	exists() Does this source actually exist ?
String	getAuthority() Return the authority of a URI.
Source	getChild(String name)
Collection	getChildren()
long	getContentLength() Return the content length of the content or -1 if the length is unknown.
String	getFragment() Return the fragment of a URI.
InputStream	getInputStream() Return an InputStream object to read from the source.
long	getLastModified() Get the last modification date of the source or 0 if it is not possible to determine the date.
String	getLatestSourceRevision() Get the latest revision
String	getMimeType() The mime-type of the content described by this object.
String	getName()
OutputStream	getOutputStream() Get an OutputStream where raw bytes can be written to.
Source	getParent()
String	getPath() Return the path of a URI.
String	getQuery() Return the query of a URI.
String	getScheme()
SourceLock[]	getSourceLocks() Returns a enumeration of the existing locks
SourceProperty[]	getSourceProperties() Returns a enumeration of the properties
SourceProperty	getSourceProperty(String namespace, String name) Returns a property from a source.
String	getSourceRevision() Get the current revision of the source
String	getSourceRevisionBranch() Get the current branch of the revision from the source
String	getURI() Return the unique identifer for this source
SourceValidity	getValidity() Get the Validity object.
boolean	isCollection()
boolean	isVersioned() If this source versioned
void	makeCollection()
void	moveTo(Source source) Move the current source to a specified destination.
void	refresh() Refresh the content of this object after the underlying data content has changed.
void	removeSourceProperty(String namespace, String name) Remove a specified source property.
void	setSourceProperty(SourceProperty property) Sets a property for a source.
void	setSourceRevision(String revision) Not implemented.
void	setSourceRevisionBranch(String branch) Not implemented.

Methods inherited from class java.lang.Object

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

Constructor Detail

SourceDTO

public SourceDTO(Source source)

Create a data transfer object for a Source.

Parameters:

source - Source

SourceDTO

public SourceDTO(Source source,
                 boolean deep)

Create a data transfer object for a Source.

Parameters:

source - Source

Method Detail

getInputStream

public InputStream getInputStream()
                           throws IOException,
                                  SourceException

Return an InputStream object to read from the source. This is the data at the point of invocation of this method, so if this is Modifiable, you might get different content from two different invocations.

Specified by:

getInputStream in interface Source

Returns:

Input stream for the source.

Throws:

IOException - If an IO excepetion occurs.

SourceException - If an exception occurs.

getURI

public String getURI()

Return the unique identifer for this source

Specified by:

getURI in interface Source

Returns:

System identifier for the source.

getScheme

public String getScheme()

Specified by:

getScheme in interface Source

Returns:

Scheme of the source.

See Also:

Source.getScheme()

getAuthority

public String getAuthority()

Return the authority of a URI. This authority is typically defined by an Internet-based server or a scheme-specific registry of naming authorities (see RFC 2396).

Returns:

Scheme of the URI.

getPath

public String getPath()

Return the path of a URI. The path contains data, specific to the authority (or the scheme if there is no authority component), identifying the resource within the scope of that scheme and authority (see RFC 2396).

Returns:

Path of the URI.

getQuery

public String getQuery()

Return the query of a URI. The query is a string of information to be interpreted by the resource (see RFC 2396).

Returns:

Query of the URI.

getFragment

public String getFragment()

Return the fragment of a URI. When a URI reference is used to perform a retrieval action on the identified resource, the optional fragment identifier, consists of additional reference information to be interpreted by the user agent after the retrieval action has been successfully completed (see RFC 2396).

Returns:

Fragment of the URI.

getValidity

public SourceValidity getValidity()

Get the Validity object. This can either wrap the last modification date or the expires information or... If it is currently not possible to calculate such an information null is returned.

Specified by:

getValidity in interface Source

Returns:

Validity for the source.

refresh

public void refresh()

Refresh the content of this object after the underlying data content has changed.

Specified by:

refresh in interface Source

getMimeType

public String getMimeType()

The mime-type of the content described by this object. If the source is not able to determine the mime-type by itself this can be null.

Specified by:

getMimeType in interface Source

Returns:

Mime type of the source.

exists

public boolean exists()

Does this source actually exist ?

Specified by:

exists in interface Source

Returns:

true if the resource exists.

getContentLength

public long getContentLength()

Return the content length of the content or -1 if the length is unknown.

Specified by:

getContentLength in interface Source

Returns:

Content length of the source.

getLastModified

public long getLastModified()

Get the last modification date of the source or 0 if it is not possible to determine the date.

Specified by:

getLastModified in interface Source

Returns:

Last modified date of the source.

getOutputStream

public OutputStream getOutputStream()
                             throws IOException,
                                    SourceException

Get an OutputStream where raw bytes can be written to. The signification of these bytes is implementation-dependent and is not restricted to a serialized XML document.

Specified by:

getOutputStream in interface ModifiableSource

Returns:

a stream to write to

Throws:

IOException

SourceException

canCancel

public boolean canCancel(OutputStream stream)

Can the data sent to an OutputStream returned by getOutputStream() be cancelled ?

Specified by:

canCancel in interface ModifiableSource

Parameters:

stream - The ouput stream, which should be cancelled.

Returns:

true if the stream can be cancelled

cancel

public void cancel(OutputStream stream)
            throws SourceException

Cancel the data sent to an OutputStream returned by getOutputStream().

After cancel, the stream should no more be used.

Specified by:

cancel in interface ModifiableSource

Parameters:

stream - The ouput stream, which should be cancelled.

Throws:

SourceException - If the ouput stream can't be cancelled.

delete

public void delete()

Delete the source.

Specified by:

delete in interface ModifiableSource

makeCollection

public void makeCollection()
                    throws SourceException

Specified by:

makeCollection in interface ModifiableTraversableSource

Throws:

SourceException

getChild

public Source getChild(String name)
                throws SourceException

Specified by:

getChild in interface TraversableSource

Throws:

SourceException

getChildren

public Collection getChildren()
                       throws SourceException

Specified by:

getChildren in interface TraversableSource

Throws:

SourceException

getName

public String getName()

Specified by:

getName in interface TraversableSource

getParent

public Source getParent()
                 throws SourceException

Specified by:

getParent in interface TraversableSource

Throws:

SourceException

isCollection

public boolean isCollection()

Specified by:

isCollection in interface TraversableSource

moveTo

public void moveTo(Source source)
            throws SourceException

Move the current source to a specified destination.

Specified by:

moveTo in interface MoveableSource

Parameters:

source -

Throws:

SourceException - If an exception occurs during the move.

copyTo

public void copyTo(Source source)
            throws SourceException

Copy the current source to a specified destination.

Specified by:

copyTo in interface MoveableSource

Parameters:

source -

Throws:

SourceException - If an exception occurs during the copy.

getSourceProperty

public SourceProperty getSourceProperty(String namespace,
                                        String name)
                                 throws SourceException

Returns a property from a source.

Specified by:

getSourceProperty in interface InspectableSource

Parameters:

namespace - Namespace of the property

name - Name of the property

Returns:

Property of the source.

Throws:

SourceException - If an exception occurs.

setSourceProperty

public void setSourceProperty(SourceProperty property)
                       throws SourceException

Sets a property for a source.

Specified by:

setSourceProperty in interface InspectableSource

Parameters:

property - Property of the source

Throws:

SourceException - If an exception occurs during this operation

getSourceProperties

public SourceProperty[] getSourceProperties()
                                     throws SourceException

Returns a enumeration of the properties

Specified by:

getSourceProperties in interface InspectableSource

Returns:

Enumeration of SourceProperty

Throws:

SourceException - If an exception occurs.

removeSourceProperty

public void removeSourceProperty(String namespace,
                                 String name)
                          throws SourceException

Remove a specified source property.

Specified by:

removeSourceProperty in interface InspectableSource

Parameters:

namespace - Namespace of the property.

name - Name of the property.

Throws:

SourceException - If an exception occurs.

addSourceLocks

public void addSourceLocks(SourceLock sourcelock)
                    throws SourceException

Add a lock to this source

Specified by:

addSourceLocks in interface LockableSource

Parameters:

sourcelock - Lock, which should be added

Throws:

SourceException - If an exception occurs during this operation

getSourceLocks

public SourceLock[] getSourceLocks()
                            throws SourceException

Returns a enumeration of the existing locks

Specified by:

getSourceLocks in interface LockableSource

Returns:

Enumeration of SourceLock

Throws:

SourceException - If an exception occurs.

isVersioned

public boolean isVersioned()
                    throws SourceException

If this source versioned

Specified by:

isVersioned in interface VersionableSource

Returns:

True if the current source is versioned.

Throws:

SourceException - If an exception occurs.

getSourceRevision

public String getSourceRevision()

Get the current revision of the source

Specified by:

getSourceRevision in interface VersionableSource

Returns:

The current revision of the source

setSourceRevision

public void setSourceRevision(String revision)
                       throws SourceException

Not implemented.

Specified by:

setSourceRevision in interface VersionableSource

Parameters:

revision - The revision, which should be used.

Throws:

SourceException - If an exception occurs.

getSourceRevisionBranch

public String getSourceRevisionBranch()
                               throws SourceException

Get the current branch of the revision from the source

Specified by:

getSourceRevisionBranch in interface VersionableSource

Returns:

The branch of the revision

Throws:

SourceException - If an exception occurs.

setSourceRevisionBranch

public void setSourceRevisionBranch(String branch)
                             throws SourceException

Not implemented.

Specified by:

setSourceRevisionBranch in interface VersionableSource

Parameters:

branch - The branch, which should be used.

Throws:

SourceException - If an exception occurs.

getLatestSourceRevision

public String getLatestSourceRevision()
                               throws SourceException

Get the latest revision

Specified by:

getLatestSourceRevision in interface VersionableSource

Returns:

Last revision of the source.

Throws:

SourceException - If an exception occurs.