/*!
* This program is free software; you can redistribute it and/or modify it under the
* terms of the GNU Lesser General Public License, version 2.1 as published by the Free Software
* Foundation.
*
* You should have received a copy of the GNU Lesser General Public License along with this
* program; if not, you can obtain a copy at http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html
* or from the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* This program 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.
*
* Copyright (c) 2002-2013 Pentaho Corporation.. All rights reserved.
*/
package org.pentaho.reporting.engine.classic.core.modules.misc.datafactory.sequence;
import java.beans.PropertyEditor;
import java.util.Locale;
import java.util.MissingResourceException;
import java.util.ResourceBundle;
import org.pentaho.reporting.engine.classic.core.util.beans.ConverterRegistry;
import org.pentaho.reporting.libraries.base.util.ObjectUtilities;
import org.pentaho.reporting.libraries.base.util.StringUtils;
public abstract class AbstractSequenceDescription implements SequenceDescription
{
private String bundleName;
private Class<? extends Sequence> baseClass;
public AbstractSequenceDescription(final String bundleName,
final Class<? extends Sequence> baseClass)
{
this.bundleName = bundleName;
this.baseClass = baseClass;
}
protected ResourceBundle getBundle(final Locale locale)
{
try
{
return ResourceBundle.getBundle(bundleName, locale);
}
catch (final MissingResourceException mre)
{
// ignore the exception, fall back to explicit english locales. Fail, if that fails too.
return ResourceBundle.getBundle(bundleName, Locale.ENGLISH);
}
}
public int getParameterCount()
{
try
{
final String string = getBundle(Locale.getDefault()).getString("parameter-count");
return Integer.parseInt(string);
}
catch (Exception e)
{
throw new IllegalStateException(e);
}
}
public String getParameterName(final int position)
{
return getBundle(Locale.getDefault()).getString("parameter." + position + ".name");
}
public String getParameterDisplayName(final int position, final Locale locale)
{
return getBundle(locale).getString("parameter." + position + ".display-name");
}
public String getParameterDescription(final int position, final Locale locale)
{
return getBundle(locale).getString("parameter." + position + ".description");
}
public Class getParameterType(final int position)
{
try
{
final String string = getBundle(Locale.getDefault()).getString("parameter." + position + ".type");
return Class.forName(string, false, ObjectUtilities.getClassLoader(AbstractSequenceDescription.class));
}
catch (Exception e)
{
throw new IllegalStateException(e);
}
}
public String getParameterRole(final int position, final Locale locale)
{
try
{
return getBundle(Locale.getDefault()).getString("parameter." + position + ".role");
}
catch (Exception e)
{
throw new IllegalStateException(e);
}
}
/**
* This is a design-time default.
*
* @param position
* @return
*/
public Object getParameterDefault(final int position)
{
try
{
final String value = getBundle(Locale.getDefault()).getString("parameter." + position + ".default-value");
if (StringUtils.isEmpty(value))
{
return null;
}
return ConverterRegistry.toPropertyValue(value, getParameterType(position));
}
catch (Exception e)
{
return null;
}
}
public String getDisplayName(final Locale locale)
{
try
{
return getBundle(Locale.getDefault()).getString("display-name");
}
catch (Exception e)
{
throw new IllegalStateException(e);
}
}
public String getDescription(final Locale locale)
{
try
{
return getBundle(Locale.getDefault()).getString("description");
}
catch (Exception e)
{
throw new IllegalStateException(e);
}
}
public PropertyEditor getEditor(final int position)
{
try
{
final ResourceBundle bundle = getBundle(Locale.getDefault());
final String key = "parameter." + position + ".editor";
if (bundle.containsKey(key) == false)
{
return null;
}
final String string = bundle.getString(key);
return ObjectUtilities.loadAndInstantiate(string, AbstractSequenceDescription.class, PropertyEditor.class);
}
catch (Exception e)
{
return null;
}
}
public String getSequenceGroup(final Locale locale)
{
try
{
return getBundle(Locale.getDefault()).getString("group");
}
catch (Exception e)
{
throw new IllegalStateException(e);
}
}
public Sequence newInstance()
{
try
{
return baseClass.newInstance();
}
catch (Exception e)
{
throw new IllegalStateException();
}
}
public String toString()
{
final StringBuilder sb = new StringBuilder();
sb.append("AbstractSequenceDescription");
sb.append("{baseClass=").append(baseClass);
sb.append('}');
return sb.toString();
}
}