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34 package info.magnolia.module.blossom.web;
35
36 import javax.jcr.Node;
37
38 import org.springframework.core.MethodParameter;
39 import org.springframework.web.bind.support.WebArgumentResolver;
40 import org.springframework.web.context.request.NativeWebRequest;
41
42 import info.magnolia.cms.core.AggregationState;
43 import info.magnolia.cms.core.Content;
44 import info.magnolia.cms.security.MgnlUser;
45 import info.magnolia.cms.security.User;
46 import info.magnolia.context.Context;
47 import info.magnolia.context.MgnlContext;
48 import info.magnolia.context.WebContext;
49 import info.magnolia.module.blossom.template.BlossomAreaDefinition;
50 import info.magnolia.module.blossom.template.BlossomTemplateDefinition;
51 import info.magnolia.objectfactory.Components;
52 import info.magnolia.rendering.context.RenderingContext;
53 import info.magnolia.rendering.template.AreaDefinition;
54 import info.magnolia.rendering.template.TemplateDefinition;
55
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64
65 public class BlossomWebArgumentResolver implements WebArgumentResolver {
66
67 @Override
68 public Object resolveArgument(MethodParameter methodParameter, NativeWebRequest webRequest) throws Exception {
69
70 if (methodParameter.getParameterType().isAssignableFrom(Node.class)) {
71 RenderingContext renderingContext = Components.getComponent(RenderingContext.class);
72 if (hasSubsequentParametersOfType(methodParameter, Node.class)) {
73 return renderingContext.getMainContent();
74 }
75 Node currentContent = renderingContext.getCurrentContent();
76 return currentContent != null ? currentContent : renderingContext.getMainContent();
77 }
78 if (methodParameter.getParameterType().isAssignableFrom(Content.class)) {
79 AggregationState aggregationState = MgnlContext.getAggregationState();
80 if (hasSubsequentParametersOfType(methodParameter, Content.class)) {
81 return aggregationState.getMainContent();
82 }
83 Content currentContent = aggregationState.getCurrentContent();
84 return currentContent != null ? currentContent : aggregationState.getMainContent();
85 }
86 if (methodParameter.getParameterType().isAssignableFrom(TemplateDefinition.class)) {
87 return Components.getComponent(RenderingContext.class).getRenderableDefinition();
88 }
89 if (methodParameter.getParameterType().isAssignableFrom(BlossomTemplateDefinition.class)) {
90 return Components.getComponent(RenderingContext.class).getRenderableDefinition();
91 }
92 if (methodParameter.getParameterType().isAssignableFrom(AreaDefinition.class)) {
93 return Components.getComponent(RenderingContext.class).getRenderableDefinition();
94 }
95 if (methodParameter.getParameterType().isAssignableFrom(BlossomAreaDefinition.class)) {
96 return Components.getComponent(RenderingContext.class).getRenderableDefinition();
97 }
98 if (methodParameter.getParameterType().isAssignableFrom(AggregationState.class)) {
99 return MgnlContext.getAggregationState();
100 }
101 if (methodParameter.getParameterType().isAssignableFrom(WebContext.class)) {
102 return MgnlContext.getWebContext();
103 }
104 if (methodParameter.getParameterType().isAssignableFrom(Context.class)) {
105 return MgnlContext.getInstance();
106 }
107 if (methodParameter.getParameterType().isAssignableFrom(User.class)) {
108 return MgnlContext.getUser();
109 }
110 if (methodParameter.getParameterType().isAssignableFrom(MgnlUser.class)) {
111 return MgnlContext.getUser();
112 }
113
114 return UNRESOLVED;
115 }
116
117 private boolean hasSubsequentParametersOfType(MethodParameter methodParameter, Class<?> clazz) {
118 Class<?>[] parameterTypes = methodParameter.getMethod().getParameterTypes();
119 for (int i = methodParameter.getParameterIndex() + 1; i < parameterTypes.length; i++) {
120 Class<?> parameterType = parameterTypes[i];
121 if (parameterType.equals(clazz)) {
122 return true;
123 }
124 }
125 return false;
126 }
127 }