org.openmrs.module.metadatasharing.reflection.ReplaceMethodInovker.java Source code

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Here is the source code for org.openmrs.module.metadatasharing.reflection.ReplaceMethodInovker.java

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/**
 * The contents of this file are subject to the OpenMRS Public License
 * Version 1.0 (the "License"); you may not use this file except in
 * compliance with the License. You may obtain a copy of the License at
 * http://license.openmrs.org
 *
 * Software distributed under the License is distributed on an "AS IS"
 * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
 * License for the specific language governing rights and limitations
 * under the License.
 *
 * Copyright (C) OpenMRS, LLC.  All Rights Reserved.
 */
package org.openmrs.module.metadatasharing.reflection;

import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.util.Collections;
import java.util.List;
import java.util.Map;

import org.apache.commons.lang.exception.ExceptionUtils;
import org.openmrs.OpenmrsObject;
import org.openmrs.module.metadatasharing.MetadataSharingConsts;
import org.springframework.stereotype.Component;

/**
 *
 */
@Component(MetadataSharingConsts.MODULE_ID + ".ReplaceMethodInovker")
public class ReplaceMethodInovker {

    public final static String ON_SAVE = "onSave";

    public final static String WRITE_REPLACE = "writeReplace";

    public final static String GET_DEPENDENCIES = "getPriorityDependenciesForMetadataSharing";

    public void callOnSave(Object object, Map<OpenmrsObject, OpenmrsObject> mappings) {
        if (object instanceof OpenmrsObject) {
            Method method = getMethod(object.getClass(), ON_SAVE, Map.class);
            if (method != null) {
                invokeMethod(method, object, mappings);
            }
        }
    }

    public OpenmrsObject callWriteReplace(OpenmrsObject object) {
        Method method = getMethod(object.getClass(), WRITE_REPLACE);
        if (method != null) {
            Object result = invokeMethod(method, object);
            return (OpenmrsObject) result;
        }
        return object;
    }

    @SuppressWarnings("unchecked")
    public List<Object> callGetPriorityDependenciesForMetadataSharing(Object object) {
        Method method = getMethod(object.getClass(), GET_DEPENDENCIES);
        if (method != null) {
            if (List.class.isAssignableFrom(method.getReturnType())) {
                return (List<Object>) invokeMethod(method, object);
            }
        }
        return Collections.emptyList();
    }

    public Object invokeMethod(Method method, Object object, Object... args) {
        try {
            return method.invoke(object, args);
        } catch (IllegalAccessException e) {
            throw new RuntimeException("Failed to call " + method.getName(), e);
        } catch (InvocationTargetException e) {
            throw new RuntimeException(
                    "Failed to call " + method.getName() + "\n\n" + ExceptionUtils.getFullStackTrace(e), e);
        }
    }

    public Method getMethod(Class<?> type, String name, Class<?>... parameterTypes) {
        try {
            Method result = type.getDeclaredMethod(name, parameterTypes);
            result.setAccessible(true);
            return result;
        } catch (NoSuchMethodException e) {
            return null;
        }
    }

}