/*!
* 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.designer.core.util.table;
import java.beans.PropertyEditor;
import java.lang.reflect.Array;
import java.util.Locale;
import org.pentaho.reporting.designer.core.util.FastPropertyEditorManager;
import org.pentaho.reporting.engine.classic.core.Element;
import org.pentaho.reporting.engine.classic.core.ReportElement;
import org.pentaho.reporting.engine.classic.core.ReportPreProcessor;
import org.pentaho.reporting.engine.classic.core.function.Expression;
import org.pentaho.reporting.engine.classic.core.metadata.ExpressionRegistry;
import org.pentaho.reporting.engine.classic.core.metadata.MetaData;
import org.pentaho.reporting.engine.classic.core.metadata.ReportPreProcessorMetaData;
import org.pentaho.reporting.engine.classic.core.metadata.ReportPreProcessorRegistry;
public class ArrayAccessUtility
{
public static boolean isArray(final Object array)
{
if (array == null)
{
return false;
}
if (array.getClass().isArray() == false)
{
return false;
}
return true;
}
public static Object[] normalizeArray(final Object array)
{
if (array == null)
{
throw new IllegalArgumentException();
}
if (array.getClass().isArray() == false)
{
throw new IllegalArgumentException();
}
final Object[] retval = new Object[Array.getLength(array)];
for (int i = 0; i < retval.length; i++)
{
retval[i] = Array.get(array, i);
}
return retval;
}
public static Object normalizeNative(final Object[] data, final Class arrayType)
{
final Object array = Array.newInstance(arrayType, data.length);
for (int i = 0; i < data.length; i++)
{
final Object o = data[i];
if (o != null && arrayType.isInstance(o) == false)
{
throw new ClassCastException("Object " + o + " cannot be cast to " + arrayType);
}
Array.set(array, i, o);
}
return array;
}
public static String getArrayAsString(final Object array)
{
if (array == null)
{
throw new IllegalArgumentException();
}
if (array.getClass().isArray() == false)
{
throw new IllegalArgumentException();
}
final StringBuilder b = new StringBuilder();
b.append('[');
final int length = Array.getLength(array);
for (int i = 0; i < length; i++)
{
if (i > 0)
{
b.append(", ");
}
final Object value = Array.get(array, i);
if (value == null)
{
b.append("<null>"); // NON-NLS
}
else if (value instanceof String)
{
b.append(value);
}
else if (value instanceof Expression)
{
final MetaData metaData =
ExpressionRegistry.getInstance().getExpressionMetaData(value.getClass().getName());
if (metaData != null)
{
b.append(metaData.getDisplayName(Locale.getDefault()));
}
else
{
b.append(String.valueOf(value));
}
}
else if (value instanceof ReportElement)
{
final Element element = (Element) value;
final MetaData metaData = element.getElementType().getMetaData();
if (metaData != null)
{
b.append(metaData.getDisplayName(Locale.getDefault()));
}
else
{
b.append(String.valueOf(value));
}
}
else if (value instanceof ReportPreProcessor)
{
final ReportPreProcessorMetaData metaData =
ReportPreProcessorRegistry.getInstance().getReportPreProcessorMetaData(value.getClass().getName());
if (metaData != null)
{
b.append(metaData.getDisplayName(Locale.getDefault()));
}
else
{
b.append(String.valueOf(value));
}
}
else
{
final PropertyEditor propertyEditor = FastPropertyEditorManager.findEditor(value.getClass());
if (propertyEditor != null)
{
propertyEditor.setValue(value);
b.append(propertyEditor.getAsText());
}
else
{
b.append(value);
}
}
}
b.append(']');
return b.toString();
}
}