/*
* #%L
* BroadleafCommerce Open Admin Platform
* %%
* Copyright (C) 2009 - 2013 Broadleaf Commerce
* %%
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
* #L%
*/
package org.broadleafcommerce.openadmin.server.service.artifact.image.effects.chain;
import org.broadleafcommerce.openadmin.server.service.artifact.OperationBuilder;
import org.broadleafcommerce.openadmin.server.service.artifact.image.Operation;
import org.broadleafcommerce.openadmin.server.service.artifact.image.effects.chain.conversion.ConversionManager;
import org.broadleafcommerce.openadmin.server.service.artifact.image.effects.chain.conversion.Parameter;
import org.broadleafcommerce.openadmin.server.service.artifact.image.effects.chain.filter.AlterHSB;
import org.broadleafcommerce.openadmin.server.service.artifact.image.effects.chain.filter.AlterRGB;
import org.broadleafcommerce.openadmin.server.service.artifact.image.effects.chain.filter.AutoLevelsRGB;
import org.broadleafcommerce.openadmin.server.service.artifact.image.effects.chain.filter.Crop;
import org.broadleafcommerce.openadmin.server.service.artifact.image.effects.chain.filter.FilterTypeEnum;
import org.broadleafcommerce.openadmin.server.service.artifact.image.effects.chain.filter.GaussianBlur;
import org.broadleafcommerce.openadmin.server.service.artifact.image.effects.chain.filter.Resize;
import org.broadleafcommerce.openadmin.server.service.artifact.image.effects.chain.filter.Rotate;
import org.broadleafcommerce.openadmin.server.service.artifact.image.effects.chain.filter.UnsharpMask;
import org.springframework.stereotype.Service;
import javax.annotation.Resource;
import java.awt.*;
import java.awt.image.BufferedImage;
import java.io.InputStream;
import java.lang.reflect.Constructor;
import java.lang.reflect.Method;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
@Service("blImageEffectsManager")
public class EffectsManager {
@Resource(name="blImageConversionManager")
protected ConversionManager conversionManager;
protected Map<String, OperationBuilder> filters = new HashMap<String, OperationBuilder>();
public EffectsManager() {
filters.put(FilterTypeEnum.ALTERHSB.toString().toLowerCase(), new AlterHSB());
filters.put(FilterTypeEnum.ALTERRGB.toString().toLowerCase(), new AlterRGB());
filters.put(FilterTypeEnum.AUTOLEVELSRGB.toString().toLowerCase(), new AutoLevelsRGB());
filters.put(FilterTypeEnum.CROP.toString().toLowerCase(), new Crop());
filters.put(FilterTypeEnum.GAUSSIANBLUR.toString().toLowerCase(), new GaussianBlur());
filters.put(FilterTypeEnum.RESIZE.toString().toLowerCase(), new Resize());
filters.put(FilterTypeEnum.ROTATE.toString().toLowerCase(), new Rotate());
filters.put(FilterTypeEnum.UNSHARPMASK.toString().toLowerCase(), new UnsharpMask());
}
public Operation[] buildOperations(Map<String, String> parameterMap, InputStream artifactStream, String mimeType) {
List<Operation> operations = new ArrayList<Operation>();
for (OperationBuilder builder : filters.values()) {
Operation operation = builder.buildOperation(parameterMap, artifactStream, mimeType);
if (operation != null) {
operations.add(operation);
}
}
return operations.toArray(new Operation[]{});
}
public BufferedImage renderEffect(String effectName, Double factor, UnmarshalledParameter[] parameters, BufferedImage src) throws Exception {
/*
* retrieve the injected filter, instantiate the filter instance using reflection and execute the operation
*/
Object filterObject = filters.get(effectName);
if (filterObject == null) {
throw new FilterNotFoundException("An effects filter was not found for the name: " + effectName);
}
Class filterClass = filterObject.getClass();
Class[] types = new Class[1];
Object[] args = new Object[1];
if (parameters != null) {
Parameter[] marshalledParameters = new Parameter[parameters.length];
for (int j=0;j<parameters.length;j++) {
marshalledParameters[j] = conversionManager.convertParameter(parameters[j].getValue(), parameters[j].getType(), factor, parameters[j].isApplyFactor());
}
types = new Class[marshalledParameters.length + 1];
args = new Object[marshalledParameters.length + 1];
for (int j=0;j<types.length-1;j++){
types[j] = marshalledParameters[j].getParameterClass();
args[j] = marshalledParameters[j].getParameterInstance();
}
}
types[types.length-1] = RenderingHints.class;
args[types.length-1] = null;
Constructor constructor = filterClass.getConstructor(types);
Object filterInstance = constructor.newInstance(args);
Method filterMethod = filterClass.getMethod("filter", new Class[]{BufferedImage.class, BufferedImage.class});
Object result = filterMethod.invoke(filterInstance, new Object[]{src, null});
return (BufferedImage) result;
}
/**
* @return the filters
*/
public Map<String, OperationBuilder> getFilters() {
return filters;
}
/**
* @param filters the filters to set
*/
public void setFilters(Map<String, OperationBuilder> filters) {
this.filters.putAll(filters);
}
/**
* @return the parameterConverter
*/
public ConversionManager getConversionManager() {
return conversionManager;
}
/**
* @param parameterConverter the parameterConverter to set
*/
public void setConversionManager(ConversionManager conversionManager) {
this.conversionManager = conversionManager;
}
}