Example usage for java.lang.reflect InvocationHandler invoke

Introduction

In this page you can find the example usage for java.lang.reflect InvocationHandler invoke.

Prototype

public Object invoke(Object proxy, Method method, Object[] args) throws Throwable;

Source Link

Document

Processes a method invocation on a proxy instance and returns the result.

Usage

From source file:org.wso2.carbon.device.mgt.core.config.permission.AnnotationProcessor.java

private void setPermission(Annotation currentMethod, Permission permission) throws Throwable {
    InvocationHandler methodHandler = Proxy.getInvocationHandler(currentMethod);
    Annotation[] extensions = (Annotation[]) methodHandler.invoke(currentMethod,
            apiOperation.getMethod(SWAGGER_ANNOTATIONS_EXTENSIONS, null), null);
    if (extensions != null) {
        methodHandler = Proxy.getInvocationHandler(extensions[0]);
        Annotation[] properties = (Annotation[]) methodHandler.invoke(extensions[0],
                extensionClass.getMethod(SWAGGER_ANNOTATIONS_PROPERTIES, null), null);
        Scope scope;/* ww  w.  ja  v  a2s . c o  m*/
        String scopeKey;
        String propertyName;
        for (Annotation property : properties) {
            methodHandler = Proxy.getInvocationHandler(property);
            propertyName = (String) methodHandler.invoke(property,
                    extensionPropertyClass.getMethod(SWAGGER_ANNOTATIONS_PROPERTIES_NAME, null), null);
            if (ANNOTATIONS_SCOPE.equals(propertyName)) {
                scopeKey = (String) methodHandler.invoke(property,
                        extensionPropertyClass.getMethod(SWAGGER_ANNOTATIONS_PROPERTIES_VALUE, null), null);
                if (!scopeKey.isEmpty()) {
                    scope = apiScopes.get(scopeKey);
                    if (scope != null) {
                        permission.setName(scope.getName());
                        //TODO: currently permission tree supports only adding one permission per API point.
                        permission.setPath(scope.getRoles().split(" ")[0]);
                    } else {
                        log.warn("No Scope mapping is done for scope key: " + scopeKey);
                        permission.setName(DEFAULT_PERM_NAME);
                        permission.setPath(DEFAULT_PERM);
                    }
                }
            }
        }
    }
}

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From source file:org.wso2.carbon.device.mgt.core.config.permission.AnnotationProcessor.java

private Map<String, Scope> processAPIScopes(Annotation annotation) throws Throwable {
    Map<String, Scope> scopes = new HashMap<>();

    InvocationHandler methodHandler = Proxy.getInvocationHandler(annotation);
    Annotation[] annotatedScopes = (Annotation[]) methodHandler.invoke(annotation,
            scopesClass.getMethod(ANNOTATIONS_SCOPES, null), null);

    Scope scope;/* ww  w.j ava  2s  . c o m*/
    String permissions[];
    StringBuilder aggregatedPermissions;
    for (int i = 0; i < annotatedScopes.length; i++) {
        aggregatedPermissions = new StringBuilder();
        methodHandler = Proxy.getInvocationHandler(annotatedScopes[i]);
        scope = new Scope();
        scope.setName(invokeMethod(scopeClass.getMethod(SWAGGER_ANNOTATIONS_PROPERTIES_NAME),
                annotatedScopes[i], STRING));
        scope.setDescription(invokeMethod(scopeClass.getMethod(SWAGGER_ANNOTATIONS_PROPERTIES_DESCRIPTION),
                annotatedScopes[i], STRING));
        scope.setKey(invokeMethod(scopeClass.getMethod(SWAGGER_ANNOTATIONS_PROPERTIES_KEY), annotatedScopes[i],
                STRING));
        permissions = (String[]) methodHandler.invoke(annotatedScopes[i],
                scopeClass.getMethod(SWAGGER_ANNOTATIONS_PROPERTIES_PERMISSIONS, null), null);
        for (String permission : permissions) {
            aggregatedPermissions.append(PERMISSION_PREFIX);
            aggregatedPermissions.append(permission);
            aggregatedPermissions.append(" ");
        }
        scope.setRoles(aggregatedPermissions.toString());
        scopes.put(scope.getKey(), scope);
    }
    return scopes;
}

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