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/*
* Copyright (c) 2015, 2018 Oracle and/or its affiliates. All rights reserved.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v. 2.0 which is available at
* http://www.eclipse.org/legal/epl-2.0,
* or the Eclipse Distribution License v. 1.0 which is available at
* http://www.eclipse.org/org/documents/edl-v10.php.
*
* SPDX-License-Identifier: EPL-2.0 OR BSD-3-Clause
*/
// Contributors:
// Martin Vojtek - 2.6 - initial version
package org.eclipse.persistence.jaxb.compiler.builder.helper;
import org.eclipse.persistence.exceptions.JAXBException;
import org.eclipse.persistence.internal.helper.TransformerHelper;
import org.eclipse.persistence.jaxb.javamodel.Helper;
import org.eclipse.persistence.jaxb.javamodel.JavaClass;
import org.eclipse.persistence.jaxb.javamodel.JavaMethod;
/**
* Provides return type from write transformation method.
*
* @author Martin Vojtek
*
*/
public class TransformerReflectionHelper {
private final TransformerHelper transformerHelper;
private final Helper helper;
public TransformerReflectionHelper(Helper helper) {
this.transformerHelper = new TransformerHelper();
this.helper = helper;
}
public JavaClass getReturnTypeForWriteTransformationMethodTransformer(JavaClass writerClass) throws JAXBException {
return getReturnTypeForWriteTransformationMethod(getTransformerHelper().getTransformerMethodName(), writerClass, true);
}
public JavaClass getReturnTypeForWriteTransformationMethod(String methodName, JavaClass writerClass) throws JAXBException {
return getReturnTypeForWriteTransformationMethod(methodName, writerClass, false);
}
private JavaClass getReturnTypeForWriteTransformationMethod(String methodName, JavaClass writerClass, boolean isSetTransformerClass) throws JAXBException {
JavaMethod javaMethod = null;
for (Class[] methodParameters : getTransformerHelper().getTransformerMethodParameters(isSetTransformerClass)) {
javaMethod = writerClass.getDeclaredMethod(methodName, helper.getJavaClassArray(methodParameters));
if (null != javaMethod) {
return javaMethod.getReturnType();
}
}
throw JAXBException.noSuchWriteTransformationMethod(methodName);
}
protected TransformerHelper getTransformerHelper() {
return transformerHelper;
}
}