52n-wps-algorithm-gcube/src/main/java/org/n52/wps/server/AbstractAnnotatedAlgorithm....

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/**
* Copyright (C) 2007 - 2016 52°North Initiative for Geospatial Open Source
* Software GmbH
*
* 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.
*/
package org.n52.wps.server;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.n52.wps.algorithm.annotation.AnnotatedAlgorithmIntrospector;
import static org.n52.wps.algorithm.annotation.AnnotatedAlgorithmIntrospector.getInstrospector;
import org.n52.wps.algorithm.annotation.AnnotationBinding;
import org.n52.wps.algorithm.descriptor.AlgorithmDescriptor;
import org.n52.wps.io.data.IData;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
*
* @author tkunicki
*/
public abstract class AbstractAnnotatedAlgorithm extends AbstractDescriptorAlgorithm {
private final static Logger LOGGER = LoggerFactory.getLogger(AbstractAnnotatedAlgorithm.class);
@Override
protected AlgorithmDescriptor createAlgorithmDescriptor() {
return getInstrospector(getAlgorithmClass()).getAlgorithmDescriptor();
}
@Override
public Map<String, IData> run(Map<String, List<IData>> inputMap) {
Object annotatedInstance = getAlgorithmInstance();
AnnotatedAlgorithmIntrospector introspector = getInstrospector(annotatedInstance.getClass());
for (Map.Entry<String, AnnotationBinding.InputBinding<?, ?>> iEntry : introspector.getInputBindingMap().entrySet()) {
iEntry.getValue().set(annotatedInstance, inputMap.get(iEntry.getKey()));
}
getInstrospector(annotatedInstance.getClass()).getExecuteMethodBinding().execute(annotatedInstance);
Map<String, IData> oMap = new HashMap<String, IData>();
for (Map.Entry<String, AnnotationBinding.OutputBinding<?, ?>> oEntry : introspector.getOutputBindingMap().entrySet()) {
oMap.put(oEntry.getKey(), oEntry.getValue().get(annotatedInstance));
}
return oMap;
}
public Object getAlgorithmInstance() {
return this;
}
public Class<?> getAlgorithmClass() {
return getClass();
}
public static class Proxy extends AbstractAnnotatedAlgorithm {
final private Class<?> proxiedClass;
final private Object proxiedInstance;
public Proxy(Class<?> proxiedClass) {
this.proxiedClass = proxiedClass;
try {
this.proxiedInstance = proxiedClass.newInstance();
} catch (InstantiationException ex) {
throw new RuntimeException("unable to instantiate proxied algorithm instance");
} catch (IllegalAccessException ex) {
throw new RuntimeException("unable to instantiate proxied algorithm instance");
}
}
@Override
public Class<?> getAlgorithmClass() {
return proxiedClass;
}
@Override
public Object getAlgorithmInstance() {
return proxiedInstance;
}
}
}