/*
* Copyright (C) 2009 eXo Platform SAS.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.exoplatform.services.jcr.impl.core.value;
import org.exoplatform.services.jcr.datamodel.ValueData;
import org.exoplatform.services.jcr.impl.Constants;
import org.exoplatform.services.jcr.impl.dataflow.TransientValueData;
import org.exoplatform.services.jcr.impl.util.JCRDateFormat;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.UnsupportedEncodingException;
import java.util.Calendar;
import javax.jcr.PropertyType;
import javax.jcr.RepositoryException;
import javax.jcr.Value;
import javax.jcr.ValueFormatException;
/**
* a date value implementation.
*
* @author Gennady Azarenkov
*/
public class DateValue extends BaseValue
{
public static final int TYPE = PropertyType.DATE;
/**
* Constructs a <code>DateValue</code> object representing a date.
*
* @param date
* the date this <code>DateValue</code> should represent s
*/
public DateValue(Calendar date) throws IOException
{
super(TYPE, new TransientValueData(date));
}
DateValue(ValueData data) throws IOException
{
super(TYPE, data);
}
/**
* @see BaseValue#getInternalString()
*/
protected String getInternalString() throws ValueFormatException, RepositoryException
{
Calendar date = getInternalCalendar();
if (date != null)
{
return JCRDateFormat.format(date);
}
throw new ValueFormatException("empty value");
}
/**
* @see Value#getLong
*/
public long getLong() throws ValueFormatException, IllegalStateException, RepositoryException
{
Calendar date = getInternalCalendar();
if (date != null)
{
return date.getTimeInMillis();
}
else
{
throw new ValueFormatException("empty value");
}
}
/**
* @see Value#getBoolean
*/
public boolean getBoolean() throws ValueFormatException, IllegalStateException, RepositoryException
{
throw new ValueFormatException("cannot convert date to boolean");
}
/**
* @see Value#getDouble
*/
public double getDouble() throws ValueFormatException, IllegalStateException, RepositoryException
{
Calendar date = getInternalCalendar();
if (date != null)
{
long ms = date.getTimeInMillis();
if (ms <= Double.MAX_VALUE)
{
return ms;
}
throw new ValueFormatException("conversion from date to double failed: inconvertible types");
}
else
{
throw new ValueFormatException("empty value");
}
}
// @Override
public long getLength()
{
try
{
return getInternalString().length();
}
catch (ValueFormatException e)
{
return super.getLength();
}
catch (RepositoryException e)
{
return super.getLength();
}
}
@Override
public InputStream getStream() throws ValueFormatException, RepositoryException
{
try
{
if (data == null)
{
String inernalString = getInternalString();
// force replace of data
data = new LocalSessionValueData(true);
// Replace internall stram
data.stream = new ByteArrayInputStream(inernalString.getBytes(Constants.DEFAULT_ENCODING));
}
return data.getAsStream();
}
catch (UnsupportedEncodingException e)
{
throw new RepositoryException(Constants.DEFAULT_ENCODING + " not supported on this platform", e);
}
catch (IOException e)
{
throw new RepositoryException(e);
}
}
}