/*
* Copyright 1998-2009 University Corporation for Atmospheric Research/Unidata
*
* Portions of this software were developed by the Unidata Program at the
* University Corporation for Atmospheric Research.
*
* Access and use of this software shall impose the following obligations
* and understandings on the user. The user is granted the right, without
* any fee or cost, to use, copy, modify, alter, enhance and distribute
* this software, and any derivative works thereof, and its supporting
* documentation for any purpose whatsoever, provided that this entire
* notice appears in all copies of the software, derivative works and
* supporting documentation. Further, UCAR requests that the user credit
* UCAR/Unidata in any publications that result from the use of this
* software or in any product that includes this software. The names UCAR
* and/or Unidata, however, may not be used in any advertising or publicity
* to endorse or promote any products or commercial entity unless specific
* written permission is obtained from UCAR/Unidata. The user also
* understands that UCAR/Unidata is not obligated to provide the user with
* any support, consulting, training or assistance of any kind with regard
* to the use, operation and performance of this software nor to provide
* the user with any updates, revisions, new versions or "bug fixes."
*
* THIS SOFTWARE IS PROVIDED BY UCAR/UNIDATA "AS IS" AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL UCAR/UNIDATA BE LIABLE FOR ANY SPECIAL,
* INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING
* FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
* NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
* WITH THE ACCESS, USE OR PERFORMANCE OF THIS SOFTWARE.
*/
package thredds.catalog2.simpleImpl;
import thredds.catalog2.Metadata;
import thredds.catalog2.builder.MetadataBuilder;
import thredds.catalog2.builder.BuilderException;
import thredds.catalog2.builder.BuilderIssue;
import thredds.catalog2.builder.BuilderIssues;
import java.net.URI;
/**
* _more_
*
* @author edavis
* @since 4.0
*/
class MetadataImpl implements Metadata, MetadataBuilder
{
private boolean isContainedContent;
private String title;
private URI externalReference;
private String content;
private boolean isBuilt;
MetadataImpl()
{
this.isContainedContent = true;
this.isBuilt = false;
}
MetadataImpl( boolean isContainedContent )
{
this.isContainedContent = isContainedContent;
this.isBuilt = false;
}
MetadataImpl( String title, URI externalReference )
{
if ( title == null )
throw new IllegalArgumentException( "Title may not be null." );
if ( externalReference == null )
throw new IllegalArgumentException( "External reference URI may not be null." );
this.isContainedContent = false;
this.title = title;
this.externalReference = externalReference;
this.content = null;
this.isBuilt = false;
}
MetadataImpl( String content )
{
if ( content == null )
throw new IllegalArgumentException( "Content string may not be null.");
this.isContainedContent = true;
this.title = null;
this.externalReference = null;
this.content = content;
this.isBuilt = false;
}
public void setContainedContent( boolean isContainedContent )
{
if ( this.isBuilt )
throw new IllegalStateException( "This Builder has already been built.");
this.isContainedContent = isContainedContent;
}
public boolean isContainedContent()
{
return this.isContainedContent;
}
public void setTitle( String title)
{
if ( this.isBuilt )
throw new IllegalStateException( "This Builder has already been built." );
if ( this.isContainedContent )
throw new IllegalStateException( "This MetadataBuilder contains content, cannot set title." );
if ( title == null )
throw new IllegalArgumentException( "Title may not be null." );
this.title = title;
}
public String getTitle()
{
if ( this.isContainedContent )
throw new IllegalStateException( "Metadata with contained content has no title.");
return this.title;
}
public void setExternalReference( URI externalReference )
{
if ( this.isBuilt )
throw new IllegalStateException( "This Builder has already been built." );
if ( this.isContainedContent )
throw new IllegalStateException( "This MetadataBuilder contains content, cannot set external reference." );
if ( externalReference == null )
throw new IllegalArgumentException( "External reference may not be null.");
this.externalReference = externalReference;
}
public URI getExternalReference()
{
if ( this.isContainedContent )
throw new IllegalStateException( "Metadata with contained content has no external reference." );
return this.externalReference;
}
public void setContent( String content )
{
if ( this.isBuilt )
throw new IllegalStateException( "This Builder has already been built." );
if ( ! this.isContainedContent )
throw new IllegalStateException( "This MetadataBuilder has external reference, cannot set content." );
this.content = content;
}
public String getContent()
{
if ( ! this.isContainedContent )
throw new IllegalStateException( "Metadata with external reference has no content, dereference external reference to obtain metadata content." );
return this.content;
}
public boolean isBuilt()
{
return this.isBuilt;
}
public BuilderIssues getIssues()
{
if ( this.isContainedContent )
{
if ( this.content == null )
return new BuilderIssues( BuilderIssue.Severity.WARNING, "MetadataBuilder contains null content.", this, null );
}
else
if ( this.title == null || this.externalReference == null )
return new BuilderIssues( BuilderIssue.Severity.WARNING, "MetadataBuilder with link has null title and/or link URI.", this, null );
return new BuilderIssues();
}
public Metadata build() throws BuilderException
{
this.isBuilt = true;
return this;
}
}