
org.n52.javaps.algorithm.annotation.ExecuteBinding Maven / Gradle / Ivy
/*
* Copyright 2016-2019 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.javaps.algorithm.annotation;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* TODO JavaDoc
*
* @author Christian Autermann
*/
class ExecuteBinding extends AnnotationBinding {
private static final Logger LOGGER = LoggerFactory.getLogger(ExecuteBinding.class);
ExecuteBinding(Method method) {
super(method);
}
@Override
public boolean validate() {
if (!checkModifier()) {
LOGGER.error("Method {} with Execute annotation can't be used, not public.", getMember());
return false;
}
// eh, do we really need to care about this?
if (!getMember().getReturnType().equals(void.class)) {
LOGGER.error("Method {} with Execute annotation can't be used, return type not void", getMember());
return false;
}
if (getMember().getParameterTypes().length != 0) {
LOGGER.error("Method {} with Execute annotation can't be used, method parameter count is > 0.",
getMember());
return false;
}
return true;
}
public void execute(Object annotatedInstance) {
try {
getMember().invoke(annotatedInstance);
} catch (IllegalAccessException | IllegalArgumentException ex) {
throw new RuntimeException("Internal error executing process", ex);
} catch (InvocationTargetException ex) {
Throwable cause = ex.getCause() == null ? ex : ex.getCause();
throw new RuntimeException(cause.getMessage(), cause);
}
}
}
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