1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34 package info.magnolia.module.blossom.web;
35
36 import info.magnolia.cms.core.AggregationState;
37 import info.magnolia.cms.core.Content;
38 import info.magnolia.cms.security.MgnlUser;
39 import info.magnolia.cms.security.User;
40 import info.magnolia.context.Context;
41 import info.magnolia.context.MgnlContext;
42 import info.magnolia.context.WebContext;
43 import info.magnolia.module.blossom.template.BlossomAreaDefinition;
44 import info.magnolia.module.blossom.template.BlossomTemplateDefinition;
45 import info.magnolia.objectfactory.Components;
46 import info.magnolia.rendering.context.RenderingContext;
47 import info.magnolia.rendering.template.AreaDefinition;
48 import info.magnolia.rendering.template.TemplateDefinition;
49
50 import java.util.HashSet;
51 import java.util.Set;
52
53 import javax.jcr.Node;
54
55 import org.springframework.core.MethodParameter;
56 import org.springframework.web.bind.support.WebDataBinderFactory;
57 import org.springframework.web.context.request.NativeWebRequest;
58 import org.springframework.web.method.support.HandlerMethodArgumentResolver;
59 import org.springframework.web.method.support.ModelAndViewContainer;
60
61
62
63
64
65
66
67
68
69 public class BlossomHandlerMethodArgumentResolver implements HandlerMethodArgumentResolver {
70
71 private Set<Class<?>> supportedParameterTypes = new HashSet<Class<?>>();
72
73 public BlossomHandlerMethodArgumentResolver() {
74 supportedParameterTypes.add(Node.class);
75 supportedParameterTypes.add(Content.class);
76 supportedParameterTypes.add(TemplateDefinition.class);
77 supportedParameterTypes.add(BlossomTemplateDefinition.class);
78 supportedParameterTypes.add(AreaDefinition.class);
79 supportedParameterTypes.add(BlossomAreaDefinition.class);
80 supportedParameterTypes.add(AggregationState.class);
81 supportedParameterTypes.add(WebContext.class);
82 supportedParameterTypes.add(Context.class);
83 supportedParameterTypes.add(User.class);
84 supportedParameterTypes.add(MgnlUser.class);
85 }
86
87 @Override
88 public boolean supportsParameter(MethodParameter parameter) {
89 for (Class<?> supportedParameterType : supportedParameterTypes) {
90 if (parameter.getParameterType().isAssignableFrom(supportedParameterType)) {
91 return true;
92 }
93 }
94 return false;
95 }
96
97 @Override
98 public Object resolveArgument(MethodParameter methodParameter, ModelAndViewContainer mavContainer, NativeWebRequest webRequest, WebDataBinderFactory binderFactory) throws Exception {
99
100 if (methodParameter.getParameterType().isAssignableFrom(Node.class)) {
101 RenderingContext renderingContext = Components.getComponent(RenderingContext.class);
102 if (hasSubsequentParametersOfType(methodParameter, Node.class)) {
103 return renderingContext.getMainContent();
104 }
105 Node currentContent = renderingContext.getCurrentContent();
106 return currentContent != null ? currentContent : renderingContext.getMainContent();
107 }
108 if (methodParameter.getParameterType().isAssignableFrom(Content.class)) {
109 AggregationState aggregationState = MgnlContext.getAggregationState();
110 if (hasSubsequentParametersOfType(methodParameter, Content.class)) {
111 return aggregationState.getMainContent();
112 }
113 Content currentContent = aggregationState.getCurrentContent();
114 return currentContent != null ? currentContent : aggregationState.getMainContent();
115 }
116 if (methodParameter.getParameterType().isAssignableFrom(TemplateDefinition.class)) {
117 return Components.getComponent(RenderingContext.class).getRenderableDefinition();
118 }
119 if (methodParameter.getParameterType().isAssignableFrom(BlossomTemplateDefinition.class)) {
120 return Components.getComponent(RenderingContext.class).getRenderableDefinition();
121 }
122 if (methodParameter.getParameterType().isAssignableFrom(AreaDefinition.class)) {
123 return Components.getComponent(RenderingContext.class).getRenderableDefinition();
124 }
125 if (methodParameter.getParameterType().isAssignableFrom(BlossomAreaDefinition.class)) {
126 return Components.getComponent(RenderingContext.class).getRenderableDefinition();
127 }
128 if (methodParameter.getParameterType().isAssignableFrom(AggregationState.class)) {
129 return MgnlContext.getAggregationState();
130 }
131 if (methodParameter.getParameterType().isAssignableFrom(WebContext.class)) {
132 return MgnlContext.getWebContext();
133 }
134 if (methodParameter.getParameterType().isAssignableFrom(Context.class)) {
135 return MgnlContext.getInstance();
136 }
137 if (methodParameter.getParameterType().isAssignableFrom(User.class)) {
138 return MgnlContext.getUser();
139 }
140 if (methodParameter.getParameterType().isAssignableFrom(MgnlUser.class)) {
141 return MgnlContext.getUser();
142 }
143
144 return null;
145 }
146
147 private boolean hasSubsequentParametersOfType(MethodParameter methodParameter, Class<?> clazz) {
148 Class<?>[] parameterTypes = methodParameter.getMethod().getParameterTypes();
149 for (int i = methodParameter.getParameterIndex() + 1; i < parameterTypes.length; i++) {
150 Class<?> parameterType = parameterTypes[i];
151 if (parameterType.equals(clazz)) {
152 return true;
153 }
154 }
155 return false;
156 }
157 }