Example usage for org.springframework.security.web.access.expression WebExpressionConfigAttribute WebExpressionConfigAttribute

Introduction

In this page you can find the example usage for org.springframework.security.web.access.expression WebExpressionConfigAttribute WebExpressionConfigAttribute.

Prototype

public WebExpressionConfigAttribute(Expression authorizeExpression,
            EvaluationContextPostProcessor<FilterInvocation> postProcessor) 

Source Link

Usage

From source file:org.springframework.security.web.access.expression.ExpressionBasedFilterInvocationSecurityMetadataSource.java

private static LinkedHashMap<RequestMatcher, Collection<ConfigAttribute>> processMap(
        LinkedHashMap<RequestMatcher, Collection<ConfigAttribute>> requestMap, ExpressionParser parser) {
    Assert.notNull(parser, "SecurityExpressionHandler returned a null parser object");

    LinkedHashMap<RequestMatcher, Collection<ConfigAttribute>> requestToExpressionAttributesMap = new LinkedHashMap<RequestMatcher, Collection<ConfigAttribute>>(
            requestMap);//from ww  w.j av a  2  s  .  com

    for (Map.Entry<RequestMatcher, Collection<ConfigAttribute>> entry : requestMap.entrySet()) {
        RequestMatcher request = entry.getKey();
        Assert.isTrue(entry.getValue().size() == 1,
                () -> "Expected a single expression attribute for " + request);
        ArrayList<ConfigAttribute> attributes = new ArrayList<>(1);
        String expression = entry.getValue().toArray(new ConfigAttribute[1])[0].getAttribute();
        logger.debug("Adding web access control expression '" + expression + "', for " + request);

        AbstractVariableEvaluationContextPostProcessor postProcessor = createPostProcessor(request);
        try {
            attributes.add(new WebExpressionConfigAttribute(parser.parseExpression(expression), postProcessor));
        } catch (ParseException e) {
            throw new IllegalArgumentException("Failed to parse expression '" + expression + "'");
        }

        requestToExpressionAttributesMap.put(request, attributes);
    }

    return requestToExpressionAttributesMap;
}

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