| /* |
| * Copyright 2005 The Apache Software Foundation. |
| * |
| * Licensed 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. |
| * |
| */ |
| /* |
| * Copyright 2005 Sun Microsystems, Inc. All rights reserved. |
| */ |
| /* |
| * $Id$ |
| */ |
| package javax.xml.crypto.dsig.spec; |
| |
| import javax.xml.crypto.dsig.CanonicalizationMethod; |
| import java.util.ArrayList; |
| import java.util.Collections; |
| import java.util.List; |
| |
| /** |
| * Parameters for the W3C Recommendation: |
| * <a href="http://www.w3.org/TR/xml-exc-c14n/"> |
| * Exclusive XML Canonicalization (C14N) algorithm</a>. The |
| * parameters include an optional inclusive namespace prefix list. The XML |
| * Schema Definition of the Exclusive XML Canonicalization parameters is |
| * defined as: |
| * <pre><code> |
| * <schema xmlns="http://www.w3.org/2001/XMLSchema" |
| * xmlns:ec="http://www.w3.org/2001/10/xml-exc-c14n#" |
| * targetNamespace="http://www.w3.org/2001/10/xml-exc-c14n#" |
| * version="0.1" elementFormDefault="qualified"> |
| * |
| * <element name="InclusiveNamespaces" type="ec:InclusiveNamespaces"/> |
| * <complexType name="InclusiveNamespaces"> |
| * <attribute name="PrefixList" type="xsd:string"/> |
| * </complexType> |
| * </schema> |
| * </code></pre> |
| * |
| * @author Sean Mullan |
| * @author JSR 105 Expert Group |
| * @see CanonicalizationMethod |
| */ |
| public final class ExcC14NParameterSpec implements C14NMethodParameterSpec { |
| |
| private List preList; |
| |
| /** |
| * Indicates the default namespace ("#default"). |
| */ |
| public static final String DEFAULT = "#default"; |
| |
| /** |
| * Creates a <code>ExcC14NParameterSpec</code> with an empty prefix |
| * list. |
| */ |
| public ExcC14NParameterSpec() { |
| preList = Collections.EMPTY_LIST; |
| } |
| |
| /** |
| * Creates a <code>ExcC14NParameterSpec</code> with the specified list |
| * of prefixes. The list is copied to protect against subsequent |
| * modification. |
| * |
| * @param prefixList the inclusive namespace prefix list. Each entry in |
| * the list is a <code>String</code> that represents a namespace prefix. |
| * @throws NullPointerException if <code>prefixList</code> is |
| * <code>null</code> |
| * @throws ClassCastException if any of the entries in the list are not |
| * of type <code>String</code> |
| */ |
| public ExcC14NParameterSpec(List prefixList) { |
| if (prefixList == null) { |
| throw new NullPointerException("prefixList cannot be null"); |
| } |
| this.preList = new ArrayList(prefixList); |
| for (int i = 0, size = preList.size(); i < size; i++) { |
| if (!(preList.get(i) instanceof String)) { |
| throw new ClassCastException("not a String"); |
| } |
| } |
| preList = Collections.unmodifiableList(preList); |
| } |
| |
| /** |
| * Returns the inclusive namespace prefix list. Each entry in the list |
| * is a <code>String</code> that represents a namespace prefix. |
| * |
| * <p>This implementation returns an {@link |
| * java.util.Collections#unmodifiableList unmodifiable list}. |
| * |
| * @return the inclusive namespace prefix list (may be empty but never |
| * <code>null</code>) |
| */ |
| public List getPrefixList() { |
| return preList; |
| } |
| } |