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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package javax.servlet;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import javax.servlet.annotation.HttpMethodConstraint;
import javax.servlet.annotation.ServletSecurity;
/**
*
* @since Servlet 3.0
* TODO SERVLET3 - Add comments
*/
public class ServletSecurityElement extends HttpConstraintElement {
private final Map<String,HttpMethodConstraintElement> methodConstraints =
new HashMap<>();
/**
* Use default HttpConstraint.
*/
public ServletSecurityElement() {
super();
}
/**
* Use specified HttpConstraintElement.
* @param httpConstraintElement The constraint
*/
public ServletSecurityElement(HttpConstraintElement httpConstraintElement) {
this (httpConstraintElement, null);
}
/**
* Use specific constraints for specified methods and default
* HttpConstraintElement for all other methods.
* @param httpMethodConstraints Method constraints
* @throws IllegalArgumentException if a method name is specified more than
* once
*/
public ServletSecurityElement(
Collection<HttpMethodConstraintElement> httpMethodConstraints) {
super();
addHttpMethodConstraints(httpMethodConstraints);
}
/**
* Use specified HttpConstraintElement as default and specific constraints
* for specified methods.
* @param httpConstraintElement Default constraint
* @param httpMethodConstraints Method constraints
* @throws IllegalArgumentException if a method name is specified more than
*/
public ServletSecurityElement(HttpConstraintElement httpConstraintElement,
Collection<HttpMethodConstraintElement> httpMethodConstraints) {
super(httpConstraintElement.getEmptyRoleSemantic(),
httpConstraintElement.getTransportGuarantee(),
httpConstraintElement.getRolesAllowed());
addHttpMethodConstraints(httpMethodConstraints);
}
/**
* Create from an annotation.
* @param annotation Annotation to use as the basis for the new instance
* @throws IllegalArgumentException if a method name is specified more than
*/
public ServletSecurityElement(ServletSecurity annotation) {
this(new HttpConstraintElement(annotation.value().value(),
annotation.value().transportGuarantee(),
annotation.value().rolesAllowed()));
List<HttpMethodConstraintElement> l = new ArrayList<>();
HttpMethodConstraint[] constraints = annotation.httpMethodConstraints();
if (constraints != null) {
for (int i = 0; i < constraints.length; i++) {
HttpMethodConstraintElement e =
new HttpMethodConstraintElement(constraints[i].value(),
new HttpConstraintElement(
constraints[i].emptyRoleSemantic(),
constraints[i].transportGuarantee(),
constraints[i].rolesAllowed()));
l.add(e);
}
}
addHttpMethodConstraints(l);
}
public Collection<HttpMethodConstraintElement> getHttpMethodConstraints() {
Collection<HttpMethodConstraintElement> result = new HashSet<>();
result.addAll(methodConstraints.values());
return result;
}
public Collection<String> getMethodNames() {
Collection<String> result = new HashSet<>();
result.addAll(methodConstraints.keySet());
return result;
}
private void addHttpMethodConstraints(
Collection<HttpMethodConstraintElement> httpMethodConstraints) {
if (httpMethodConstraints == null) {
return;
}
for (HttpMethodConstraintElement constraint : httpMethodConstraints) {
String method = constraint.getMethodName();
if (methodConstraints.containsKey(method)) {
throw new IllegalArgumentException(
"Duplicate method name: " + method);
}
methodConstraints.put(method, constraint);
}
}
}
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