/*
* 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) 2001 - 2013 Object Refinery Ltd, Pentaho Corporation and Contributors.. All rights reserved.
*/
package org.pentaho.reporting.engine.classic.core.filter.types;
import java.awt.Component;
import java.awt.Image;
import java.awt.Shape;
import java.io.IOException;
import java.net.URL;
import java.util.Locale;
import javax.swing.JFrame;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.pentaho.reporting.engine.classic.core.AttributeNames;
import org.pentaho.reporting.engine.classic.core.DefaultImageReference;
import org.pentaho.reporting.engine.classic.core.ImageContainer;
import org.pentaho.reporting.engine.classic.core.ReportElement;
import org.pentaho.reporting.engine.classic.core.function.ExpressionRuntime;
import org.pentaho.reporting.engine.classic.core.style.ElementStyleKeys;
import org.pentaho.reporting.engine.classic.core.util.ComponentDrawable;
import org.pentaho.reporting.engine.classic.core.util.ReportDrawableImage;
import org.pentaho.reporting.libraries.base.config.Configuration;
import org.pentaho.reporting.libraries.base.util.LFUMap;
import org.pentaho.reporting.libraries.resourceloader.Resource;
import org.pentaho.reporting.libraries.resourceloader.ResourceKey;
import org.pentaho.reporting.libraries.resourceloader.ResourceManager;
import org.pentaho.reporting.libraries.resourceloader.factory.drawable.DrawableWrapper;
/**
* @noinspection HardCodedStringLiteral
*/
public class ContentType extends AbstractElementType
{
public static class ContentTypeContext
{
public LFUMap<Object,Boolean> failureCache;
public JFrame frame;
}
public static final ContentType INSTANCE = new ContentType();
private static final Class[] TARGETS = new Class[]{DrawableWrapper.class, Image.class};
private static final Log logger = LogFactory.getLog(ContentType.class);
public ContentType()
{
super("content");
}
protected ContentType(final String id)
{
super(id);
}
/**
* Returns the current value for the data source.
*
* @param runtime the expression runtime that is used to evaluate formulas and expressions when computing the value of
* this filter.
* @param element the element for which the data is computed.
* @return the value.
*/
public Object getValue(final ExpressionRuntime runtime, final ReportElement element)
{
if (runtime == null)
{
throw new NullPointerException("Runtime must never be null.");
}
if (element == null)
{
throw new NullPointerException("Element must never be null.");
}
URL resource = null;
final Object value = ElementTypeUtils.queryStaticValue(element);
if (value != null)
{
final Object filteredValue = filter(runtime, element, value);
if (filteredValue != null)
{
return filteredValue;
}
else
{
final boolean isBrokenImageEnabled = "true".equals
(runtime.getConfiguration().getConfigProperty("org.pentaho.reporting.engine.classic.core.EnableBrokenImage"));
if (isBrokenImageEnabled)
{
resource = ContentType.class.getResource
("/org/pentaho/reporting/engine/classic/core/metadata/icons/image_broken_50.png");
}
}
}
final Object nullValue = element.getAttribute(AttributeNames.Core.NAMESPACE, AttributeNames.Core.NULL_VALUE);
if (nullValue != null)
{
final Object loadedNullValue = filter(runtime, element, nullValue);
if (loadedNullValue != null)
{
return loadedNullValue;
}
}
try
{
if (resource == null)
{
resource = ContentType.class.getResource
("/org/pentaho/reporting/engine/classic/core/metadata/icons/image_50.png");
}
if (resource != null)
{
final ResourceManager resManager = runtime.getProcessingContext().getResourceManager();
final Resource loadedResource = resManager.createDirectly(resource, Image.class);
final Image image = (Image) loadedResource.getResource();
return new ReportDrawableImage(image);
}
}
catch (Exception e)
{
ContentType.logger.warn("Failed to load content." + e);
}
return value;
}
public Object getDesignValue(final ExpressionRuntime runtime, final ReportElement element)
{
return getValue(runtime, element);
}
protected Object filter(final ExpressionRuntime runtime, final ReportElement element, final Object value)
{
if (value == null)
{
return null;
}
if (value instanceof Image)
{
try
{
return new DefaultImageReference((Image) value);
}
catch (IOException e)
{
ContentType.logger.warn("Failed to load content using value " + value, e);
}
return null;
}
if (value instanceof Shape)
{
return value;
}
if (value instanceof ImageContainer)
{
return value;
}
if (value instanceof Component)
{
final Component c = (Component) value;
return new DrawableWrapper(createComponentDrawable(runtime, c, element));
}
if (value instanceof DrawableWrapper)
{
return value;
}
if (DrawableWrapper.isDrawable(value))
{
return new DrawableWrapper(value);
}
final ContentTypeContext context = element.getElementContext(ContentTypeContext.class);
if (context.failureCache != null)
{
final Object o = context.failureCache.get(value);
if (Boolean.TRUE.equals(o))
{
return null;
}
}
try
{
final ResourceKey contentBase = runtime.getProcessingContext().getContentBase();
final ResourceManager resManager = runtime.getProcessingContext().getResourceManager();
final Object contentBaseValue = element.getAttribute(AttributeNames.Core.NAMESPACE, AttributeNames.Core.CONTENT_BASE);
final ResourceKey key = resManager.createOrDeriveKey(contentBase, value, contentBaseValue);
if (key == null)
{
return null;
}
final Resource resource = resManager.create(key, contentBase, ContentType.TARGETS);
final Object resourceContent = resource.getResource();
if (resourceContent instanceof DrawableWrapper)
{
return resourceContent;
}
else if (DrawableWrapper.isDrawable(resourceContent))
{
return new DrawableWrapper(resourceContent);
}
else if (resourceContent instanceof Image)
{
return new DefaultImageReference(resource);
}
else
{
return resourceContent;
}
}
catch (Exception e)
{
if (context.failureCache == null)
{
context.failureCache = new LFUMap<Object,Boolean>(5);
}
context.failureCache.put(value, Boolean.TRUE);
ContentType.logger.warn("Failed to load content using value " + value, e);
}
return null;
}
protected final ComponentDrawable createComponentDrawable(final ExpressionRuntime runtime,
final Component c,
final ReportElement element)
{
final Configuration config = runtime.getConfiguration();
final ComponentDrawable cd;
final String drawMode = config.getConfigProperty("org.pentaho.reporting.engine.classic.core.ComponentDrawableMode",
"shared");
if ("private".equals(drawMode))
{
cd = new ComponentDrawable();
}
else if ("synchronized".equals(drawMode))
{
cd = new ComponentDrawable();
cd.setPaintSynchronized(true);
}
else
{
final ContentTypeContext context = element.getElementContext(ContentTypeContext.class);
if (context.frame == null)
{
context.frame = new JFrame();
}
cd = new ComponentDrawable(context.frame);
cd.setPaintSynchronized(true);
}
final String allowOwnPeer = config.getConfigProperty(
"org.pentaho.reporting.engine.classic.core.AllowOwnPeerForComponentDrawable");
cd.setAllowOwnPeer("true".equals(allowOwnPeer));
cd.setComponent(c);
return cd;
}
public void configureDesignTimeDefaults(final ReportElement element, final Locale locale)
{
element.getStyle().setStyleProperty(ElementStyleKeys.KEEP_ASPECT_RATIO, Boolean.TRUE);
element.getStyle().setStyleProperty(ElementStyleKeys.SCALE, Boolean.TRUE);
element.getStyle().setStyleProperty(ElementStyleKeys.MIN_WIDTH, 50f);
element.getStyle().setStyleProperty(ElementStyleKeys.MIN_HEIGHT, 50f);
}
}