3045247656

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Committed by dkayiwa

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<a href="https://github.com/openmrs/openmrs-core/commit/<a class=hub.com/openmrs/openmrs-core/commit/<a class="double-link" href="https://git"><a class=hub.com/openmrs/openmrs-core/commit/<a class="double-link" href="https://git"><a class=hub.com/openmrs/openmrs-core/commit/<a class="double-link" href="https://git"><a class=hub.com/openmrs/openmrs-core/commit/64d32335fca309ba882afc9fb003ed28196b9d5a">64d32335f<a href="https://github.com/openmrs/openmrs-core/commit/64d32335fca309ba882afc9fb003ed28196b9d5a">&quot;&gt;&amp;lt;a href=&amp;quot;https://github.com/openmrs/openmrs-core/commit/&lt;/a&gt;&lt;a class=&quot;double-link&quot; href=&quot;https://github.com/openmrs/openmrs-core/commit/&amp;lt;a class=&amp;quot;double-link&amp;quot; href=&amp;quot;https://git&quot;&gt;&amp;lt;a class=&lt;/a&gt;hub.com/openmrs/openmrs-core/commit/64d32335fca309ba882afc9fb003ed28196b9d5a&quot;&gt;64d32335f&lt;/a&gt;&lt;a href=&quot;https://github.com/openmrs/openmrs-core/commit/64d32335fca309ba882afc9fb003ed28196b9d5a&quot;&gt;&amp;lt;a href=&amp;quot;https://github.com/openmrs/openmrs-core/commit/64d32335fca309ba882afc9fb003ed28196b9d5a&amp;quot;&amp;gt;&amp;amp;quot;&amp;amp;gt;Fix: org.postgresql.util.PSQLException: ERROR: column &amp;amp;amp;quot;voided&amp;amp;amp;quot; is of
type boolean but expression is of type in&lt;/a>teger

(cherry picked from commit &lt;/a&gt;&lt;a class=&quot;double-link&quot; href=&quot;https://github.com/openmrs/openmrs-core/commit/&lt;a class=&quot;double-link&quot; href=&quot;https://github.com/openmrs/openmrs-core/commit/<a class="double-link" href="https://github.com/openmrs/openmrs-core/commit/0b7c00d5eced4b3483ebdf0bbd69088093293b27">0b7c00d5e</a>&quot;&gt;0b7c00d5e&lt;/a&gt;&quot;&gt;0b7c00d5e&lt;/a&gt;&lt;a href=&quot;http</a>s://github.com/openmrs/openmrs-core/commit/64d32335fca309ba882afc9fb003ed28196b9d5a">)

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85.29

/api/src/main/java/org/openmrs/util/HandlerUtil.java

/**
 * This Source Code Form is subject to the terms of the Mozilla Public License,
 * v. 2.0. If a copy of the MPL was not distributed with this file, You can
 * obtain one at http://mozilla.org/MPL/2.0/. OpenMRS is also distributed under
 * the terms of the Healthcare Disclaimer located at http://openmrs.org/license.
 *
 * Copyright (C) OpenMRS Inc. OpenMRS is a registered trademark and the OpenMRS
 * graphic logo is a trademark of OpenMRS Inc.
 */
package org.openmrs.util;

import java.util.ArrayList;
import java.util.Comparator;
import java.util.List;
import java.util.Map;
import java.util.WeakHashMap;

import org.openmrs.annotation.Handler;
import org.openmrs.api.APIException;
import org.openmrs.api.context.Context;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.context.ApplicationListener;
import org.springframework.context.event.ContextRefreshedEvent;
import org.springframework.stereotype.Component;

/**
 * Utility class that provides useful methods for working with classes that are annotated with the
 * {@link Handler} annotation
 * 
 * @since 1.5
 */
@Component
public class HandlerUtil implements ApplicationListener<ContextRefreshedEvent> {
        
        private static final Logger log = LoggerFactory.getLogger(HandlerUtil.class);
        
        private static volatile Map<Key, List<?>> cachedHandlers = new WeakHashMap<>();
        
        private static class Key {
                
                public final Class<?> handlerType;
                
                public final Class<?> type;
                
                public Key(Class<?> handlerType, Class<?> type) {
                        this.handlerType = handlerType;
                        this.type = type;
                }
                
                @Override
                public int hashCode() {
                        final int prime = 31;
                        int result = 1;
                        result = prime * result + ((handlerType == null) ? 0 : handlerType.hashCode());
                        result = prime * result + ((type == null) ? 0 : type.hashCode());
                        return result;
                }
                
                @Override
                public boolean equals(Object obj) {
                        if (this == obj) {
                                return true;
                        }
                        if (obj == null) {
                                return false;
                        }
                        if (getClass() != obj.getClass()) {
                                return false;
                        }
                        Key other = (Key) obj;
                        if (handlerType == null) {
                                if (other.handlerType != null) {
                                        return false;
                                }
                        } else if (!handlerType.equals(other.handlerType)) {
                                return false;
                        }
                        if (type == null) {
                                return other.type == null;
                        } else {
                                return type.equals(other.type);
                        }
                }
                
        }
        
        public static void clearCachedHandlers() {
                cachedHandlers = new WeakHashMap<>();
        }
        
        /**
         * Retrieves a List of all registered components from the Context that are of the passed
         * handlerType and one or more of the following is true:
         * <ul>
         * <li>The handlerType is annotated as a {@link Handler} that supports the passed type</li>
         * <li>The passed type is null - this effectively returns all components of the passed
         * handlerType</li>
         * </ul>
         * The returned handlers are ordered in the list based upon the order property.
         * 
         * @param handlerType Indicates the type of class to return
         * @param type Indicates the type that the given handlerType must support (or null for any)
         * @return a List of all matching Handlers for the given parameters, ordered by Handler#order
         * <strong>Should</strong> return a list of all classes that can handle the passed type
         * <strong>Should</strong> return classes registered in a module
         * <strong>Should</strong> return an empty list if no classes can handle the passed type
         */
        public static <H, T> List<H> getHandlersForType(Class<H> handlerType, Class<T> type) {
                List<?> list = cachedHandlers.get(new Key(handlerType, type));
                if (list != null) {
                        return (List<H>) list;
                }
                
                List<H> handlers = new ArrayList<>();
                
                // First get all registered components of the passed class
                log.debug("Getting handlers of type " + handlerType + (type == null ? "" : " for class " + type.getName()));
                for (H handler : Context.getRegisteredComponents(handlerType)) {
                        Handler handlerAnnotation = handler.getClass().getAnnotation(Handler.class);
                        // Only consider those that have been annotated as Handlers
                        if (handlerAnnotation != null) {
                                // If no type is passed in return all handlers
                                if (type == null) {
                                        log.debug("Found handler " + handler.getClass());
                                        handlers.add(handler);
                                }
                                // Otherwise, return all handlers that support the passed type
                                else {
                                        for (int i = 0; i < handlerAnnotation.supports().length; i++) {
                                                Class<?> clazz = handlerAnnotation.supports()[i];
                                                if (clazz.isAssignableFrom(type)) {
                                                        log.debug("Found handler: " + handler.getClass());
                                                        handlers.add(handler);
                                                }
                                        }
                                }
                        }
                }
                
                // Return the list of handlers based on the order specified in the Handler annotation
                handlers.sort(Comparator.comparing(o -> getOrderOfHandler(o.getClass())));
                
                Map<Key, List<?>> newCachedHandlers = new WeakHashMap<>(cachedHandlers);
                newCachedHandlers.put(new Key(handlerType, type), handlers);
                cachedHandlers = newCachedHandlers;
                
                return handlers;
        }
        
        /**
         * Retrieves the preferred Handler for a given handlerType and type. A <em>preferred</em>
         * handler is the Handler that has the lowest defined <em>order</em> attribute in it's
         * annotation. If multiple Handlers are found for the passed parameters at the lowest specified
         * order, then an APIException is thrown.
         * 
         * @param handlerType the class that is an annotated {@link Handler} to retrieve
         * @param type the class that the annotated {@link Handler} must support
         * @return the class of the passed handlerType with the lowest configured order
         * <strong>Should</strong> return the preferred handler for the passed handlerType and type
         * <strong>Should</strong> throw a APIException if no handler is found
         * <strong>Should</strong> throw a APIException if multiple preferred handlers are found
         * <strong>Should</strong> should return patient validator for patient
         * <strong>Should</strong> should return person validator for person
         */
        public static <H, T> H getPreferredHandler(Class<H> handlerType, Class<T> type) {
                
                if (handlerType == null || type == null) {
                        throw new IllegalArgumentException("You must specify both a handlerType and a type");
                }
                List<H> handlers = getHandlersForType(handlerType, type);
                if (handlers == null || handlers.isEmpty()) {
                        throw new APIException("handler.type.not.found", new Object[] { handlerType, type });
                }
                
                if (handlers.size() > 1) {
                        int order1 = getOrderOfHandler(handlers.get(0).getClass());
                        int order2 = getOrderOfHandler(handlers.get(1).getClass());
                        if (order1 == order2) {
                                throw new APIException("handler.type.multiple", new Object[] { handlerType, type });
                        }
                }
                
                return handlers.get(0);
        }
        
        /**
         * Utility method to return the order attribute of the {@link Handler} annotation on the passed
         * class. If the passed class does not have a {@link Handler} annotation, a RuntimeException is
         * thrown
         * 
         * @param handlerClass
         * @return the order attribute value
         */
        public static Integer getOrderOfHandler(Class<?> handlerClass) {
                Handler annotation = handlerClass.getAnnotation(Handler.class);
                if (annotation == null) {
                        throw new APIException("class.not.annotated.as.handler", new Object[] { handlerClass });
                }
                return annotation.order();
        }
        
        @Override
        public void onApplicationEvent(ContextRefreshedEvent event) {
                clearCachedHandlers();
        }
}

1	/**
2	* This Source Code Form is subject to the terms of the Mozilla Public License,
3	* v. 2.0. If a copy of the MPL was not distributed with this file, You can
4	* obtain one at http://mozilla.org/MPL/2.0/. OpenMRS is also distributed under
5	* the terms of the Healthcare Disclaimer located at http://openmrs.org/license.
6	*
7	* Copyright (C) OpenMRS Inc. OpenMRS is a registered trademark and the OpenMRS
8	* graphic logo is a trademark of OpenMRS Inc.
9	*/
10	package org.openmrs.util;
11
12	import java.util.ArrayList;
13	import java.util.Comparator;
14	import java.util.List;
15	import java.util.Map;
16	import java.util.WeakHashMap;
17
18	import org.openmrs.annotation.Handler;
19	import org.openmrs.api.APIException;
20	import org.openmrs.api.context.Context;
21	import org.slf4j.Logger;
22	import org.slf4j.LoggerFactory;
23	import org.springframework.context.ApplicationListener;
24	import org.springframework.context.event.ContextRefreshedEvent;
25	import org.springframework.stereotype.Component;
26
27	/**
28	* Utility class that provides useful methods for working with classes that are annotated with the
29	* {@link Handler} annotation
30	*
31	* @since 1.5
32	*/
33	@Component
34	public class HandlerUtil implements ApplicationListener<ContextRefreshedEvent> {	1✔
35
36	private static final Logger log = LoggerFactory.getLogger(HandlerUtil.class);	1✔
37
38	private static volatile Map<Key, List<?>> cachedHandlers = new WeakHashMap<>();	1✔
39
40	private static class Key {
41
42	public final Class<?> handlerType;
43
44	public final Class<?> type;
45
46	public Key(Class<?> handlerType, Class<?> type) {	1✔
47	this.handlerType = handlerType;	1✔
48	this.type = type;	1✔
49	}	1✔
50
51	@Override
52	public int hashCode() {
53	final int prime = 31;	1✔
54	int result = 1;	1✔
55	result = prime * result + ((handlerType == null) ? 0 : handlerType.hashCode());	1✔
56	result = prime * result + ((type == null) ? 0 : type.hashCode());	1✔
57	return result;	1✔
58	}
59
60	@Override
61	public boolean equals(Object obj) {
62	if (this == obj) {	1✔
63	return true;	×
64	}
65	if (obj == null) {	1✔
66	return false;	×
67	}
68	if (getClass() != obj.getClass()) {	1✔
69	return false;	×
70	}
71	Key other = (Key) obj;	1✔
72	if (handlerType == null) {	1✔
73	if (other.handlerType != null) {	×
74	return false;	×
75	}
76	} else if (!handlerType.equals(other.handlerType)) {	1✔
77	return false;	×
78	}
79	if (type == null) {	1✔
80	return other.type == null;	×
81	} else {
82	return type.equals(other.type);	1✔
83	}
84	}
85
86	}
87
88	public static void clearCachedHandlers() {
89	cachedHandlers = new WeakHashMap<>();	1✔
90	}	1✔
91
92	/**
93	* Retrieves a List of all registered components from the Context that are of the passed
94	* handlerType and one or more of the following is true:
95	* <ul>
96	* <li>The handlerType is annotated as a {@link Handler} that supports the passed type</li>
97	* <li>The passed type is null - this effectively returns all components of the passed
98	* handlerType</li>
99	* </ul>
100	* The returned handlers are ordered in the list based upon the order property.
101	*
102	* @param handlerType Indicates the type of class to return
103	* @param type Indicates the type that the given handlerType must support (or null for any)
104	* @return a List of all matching Handlers for the given parameters, ordered by Handler#order
105	* <strong>Should</strong> return a list of all classes that can handle the passed type
106	* <strong>Should</strong> return classes registered in a module
107	* <strong>Should</strong> return an empty list if no classes can handle the passed type
108	*/
109	public static <H, T> List<H> getHandlersForType(Class<H> handlerType, Class<T> type) {
110	List<?> list = cachedHandlers.get(new Key(handlerType, type));	1✔
111	if (list != null) {	1✔
112	return (List<H>) list;	1✔
113	}
114
115	List<H> handlers = new ArrayList<>();	1✔
116
117	// First get all registered components of the passed class
118	log.debug("Getting handlers of type " + handlerType + (type == null ? "" : " for class " + type.getName()));	1✔
119	for (H handler : Context.getRegisteredComponents(handlerType)) {	1✔
120	Handler handlerAnnotation = handler.getClass().getAnnotation(Handler.class);	1✔
121	// Only consider those that have been annotated as Handlers
122	if (handlerAnnotation != null) {	1✔
123	// If no type is passed in return all handlers
124	if (type == null) {	1✔
125	log.debug("Found handler " + handler.getClass());	1✔
126	handlers.add(handler);	1✔
127	}
128	// Otherwise, return all handlers that support the passed type
129	else {
130	for (int i = 0; i < handlerAnnotation.supports().length; i++) {	1✔
131	Class<?> clazz = handlerAnnotation.supports()[i];	1✔
132	if (clazz.isAssignableFrom(type)) {	1✔
133	log.debug("Found handler: " + handler.getClass());	1✔
134	handlers.add(handler);	1✔
135	}
136	}
137	}
138	}
139	}	1✔
140
141	// Return the list of handlers based on the order specified in the Handler annotation
142	handlers.sort(Comparator.comparing(o -> getOrderOfHandler(o.getClass())));	1✔
143
144	Map<Key, List<?>> newCachedHandlers = new WeakHashMap<>(cachedHandlers);	1✔
145	newCachedHandlers.put(new Key(handlerType, type), handlers);	1✔
146	cachedHandlers = newCachedHandlers;	1✔
147
148	return handlers;	1✔
149	}
150
151	/**
152	* Retrieves the preferred Handler for a given handlerType and type. A <em>preferred</em>
153	* handler is the Handler that has the lowest defined <em>order</em> attribute in it's
154	* annotation. If multiple Handlers are found for the passed parameters at the lowest specified
155	* order, then an APIException is thrown.
156	*
157	* @param handlerType the class that is an annotated {@link Handler} to retrieve
158	* @param type the class that the annotated {@link Handler} must support
159	* @return the class of the passed handlerType with the lowest configured order
160	* <strong>Should</strong> return the preferred handler for the passed handlerType and type
161	* <strong>Should</strong> throw a APIException if no handler is found
162	* <strong>Should</strong> throw a APIException if multiple preferred handlers are found
163	* <strong>Should</strong> should return patient validator for patient
164	* <strong>Should</strong> should return person validator for person
165	*/
166	public static <H, T> H getPreferredHandler(Class<H> handlerType, Class<T> type) {
167
168	if (handlerType == null \|\| type == null) {	1✔
169	throw new IllegalArgumentException("You must specify both a handlerType and a type");	×
170	}
171	List<H> handlers = getHandlersForType(handlerType, type);	1✔
172	if (handlers == null \|\| handlers.isEmpty()) {	1✔
173	throw new APIException("handler.type.not.found", new Object[] { handlerType, type });	1✔
174	}
175
176	if (handlers.size() > 1) {	1✔
177	int order1 = getOrderOfHandler(handlers.get(0).getClass());	1✔
178	int order2 = getOrderOfHandler(handlers.get(1).getClass());	1✔
179	if (order1 == order2) {	1✔
180	throw new APIException("handler.type.multiple", new Object[] { handlerType, type });	×
181	}
182	}
183
184	return handlers.get(0);	1✔
185	}
186
187	/**
188	* Utility method to return the order attribute of the {@link Handler} annotation on the passed
189	* class. If the passed class does not have a {@link Handler} annotation, a RuntimeException is
190	* thrown
191	*
192	* @param handlerClass
193	* @return the order attribute value
194	*/
195	public static Integer getOrderOfHandler(Class<?> handlerClass) {
196	Handler annotation = handlerClass.getAnnotation(Handler.class);	1✔
197	if (annotation == null) {	1✔
198	throw new APIException("class.not.annotated.as.handler", new Object[] { handlerClass });	×
199	}
200	return annotation.order();	1✔
201	}
202
203	@Override
204	public void onApplicationEvent(ContextRefreshedEvent event) {
205	clearCachedHandlers();	1✔
206	}	1✔
207	}

openmrs / openmrs-core / 3045247656

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