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1   /**
2    * Licensed to the Apache Software Foundation (ASF) under one
3    * or more contributor license agreements. See the NOTICE file
4    * distributed with this work for additional information
5    * regarding copyright ownership. The ASF licenses this file
6    * to you under the Apache License, Version 2.0 (the
7    * "License"); you may not use this file except in compliance
8    * with the License. You may obtain a copy of the License at
9    *
10   * http://www.apache.org/licenses/LICENSE-2.0
11   *
12   * Unless required by applicable law or agreed to in writing,
13   * software distributed under the License is distributed on an
14   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15   * KIND, either express or implied. See the License for the
16   * specific language governing permissions and limitations
17   * under the License.
18   */
19  package org.apache.wss4j.policy.builders;
20  
21  import org.apache.neethi.Assertion;
22  import org.apache.neethi.AssertionBuilderFactory;
23  import org.apache.neethi.Policy;
24  import org.apache.neethi.builders.AssertionBuilder;
25  import org.apache.wss4j.policy.SP11Constants;
26  import org.apache.wss4j.policy.SP13Constants;
27  import org.apache.wss4j.policy.SPConstants;
28  import org.apache.wss4j.policy.SPUtils;
29  import org.apache.wss4j.policy.model.Layout;
30  import org.w3c.dom.Element;
31  
32  import javax.xml.namespace.QName;
33  
34  public class LayoutBuilder implements AssertionBuilder<Element> {
35  
36      @Override
37      public Assertion build(Element element, AssertionBuilderFactory factory) throws IllegalArgumentException {
38  
39          final SPConstants.SPVersion spVersion = SPConstants.SPVersion.getSPVersion(element.getNamespaceURI());
40          final Element nestedPolicyElement = SPUtils.getFirstPolicyChildElement(element);
41          if (nestedPolicyElement == null) {
42              throw new IllegalArgumentException("sp:Layout must have an inner wsp:Policy element");
43          }
44          final Policy nestedPolicy = factory.getPolicyEngine().getPolicy(nestedPolicyElement);
45          Layout layout = new Layout(
46                  spVersion,
47                  nestedPolicy
48          );
49          layout.setOptional(SPUtils.isOptional(element));
50          layout.setIgnorable(SPUtils.isIgnorable(element));
51          return layout;
52      }
53  
54      @Override
55      public QName[] getKnownElements() {
56          return new QName[]{SP13Constants.LAYOUT, SP11Constants.LAYOUT};
57      }
58  }