javax.xml.crypto.dsig.spec.ExcC14NParameterSpec Maven / Gradle / Ivy
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Apache XML Security for Java supports XML-Signature Syntax and Processing,
W3C Recommendation 12 February 2002, and XML Encryption Syntax and
Processing, W3C Recommendation 10 December 2002. As of version 1.4,
the library supports the standard Java API JSR-105: XML Digital Signature APIs.
/**
* 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.
*/
/*
* Copyright 2005 Sun Microsystems, Inc. All rights reserved.
*/
/*
* $Id: ExcC14NParameterSpec.java 1203720 2011-11-18 16:23:54Z mullan $
*/
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:
*
* Exclusive XML Canonicalization (C14N) algorithm. The
* parameters include an optional inclusive namespace prefix list. The XML
* Schema Definition of the Exclusive XML Canonicalization parameters is
* defined as:
*
* <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>
*
*
* @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 ExcC14NParameterSpec
with an empty prefix
* list.
*/
public ExcC14NParameterSpec() {
preList = Collections.EMPTY_LIST;
}
/**
* Creates a ExcC14NParameterSpec
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 String
that represents a namespace prefix.
* @throws NullPointerException if prefixList
is
* null
* @throws ClassCastException if any of the entries in the list are not
* of type String
*/
public ExcC14NParameterSpec(List prefixList) {
if (prefixList == null) {
throw new NullPointerException("prefixList cannot be null");
}
this.preList = unmodifiableCopyOfList(prefixList);
for (int i = 0, size = preList.size(); i < size; i++) {
if (!(preList.get(i) instanceof String)) {
throw new ClassCastException("not a String");
}
}
}
@SuppressWarnings("unchecked")
private static List unmodifiableCopyOfList(List list) {
return Collections.unmodifiableList(new ArrayList(list));
}
/**
* Returns the inclusive namespace prefix list. Each entry in the list
* is a String
that represents a namespace prefix.
*
* This implementation returns an {@link
* java.util.Collections#unmodifiableList unmodifiable list}.
*
* @return the inclusive namespace prefix list (may be empty but never
* null
)
*/
public List getPrefixList() {
return preList;
}
}
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