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/*
* reserved comment block
* DO NOT REMOVE OR ALTER!
*/
/*
* 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: DOMManifest.java,v 1.2 2008/07/24 15:20:32 mullan Exp $
*/
package org.jcp.xml.dsig.internal.dom;
import javax.xml.crypto.*;
import javax.xml.crypto.dom.DOMCryptoContext;
import javax.xml.crypto.dsig.*;
import java.security.Provider;
import java.util.*;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
/**
* DOM-based implementation of Manifest.
*
* @author Sean Mullan
*/
public final class DOMManifest extends DOMStructure implements Manifest {
private final List references;
private final String id;
/**
* Creates a <code>DOMManifest</code> containing the specified
* list of {@link Reference}s and optional id.
*
* @param references a list of one or more <code>Reference</code>s. The list
* is defensively copied to protect against subsequent modification.
* @param id the id (may be <code>null</code>
* @throws NullPointerException if <code>references</code> is
* <code>null</code>
* @throws IllegalArgumentException if <code>references</code> is empty
* @throws ClassCastException if <code>references</code> contains any
* entries that are not of type {@link Reference}
*/
public DOMManifest(List references, String id) {
if (references == null) {
throw new NullPointerException("references cannot be null");
}
List refCopy = new ArrayList(references);
if (refCopy.isEmpty()) {
throw new IllegalArgumentException("list of references must " +
"contain at least one entry");
}
for (int i = 0, size = refCopy.size(); i < size; i++) {
if (!(refCopy.get(i) instanceof Reference)) {
throw new ClassCastException
("references["+i+"] is not a valid type");
}
}
this.references = Collections.unmodifiableList(refCopy);
this.id = id;
}
/**
* Creates a <code>DOMManifest</code> from an element.
*
* @param manElem a Manifest element
*/
public DOMManifest(Element manElem, XMLCryptoContext context,
Provider provider) throws MarshalException {
this.id = DOMUtils.getAttributeValue(manElem, "Id");
Element refElem = DOMUtils.getFirstChildElement(manElem);
List refs = new ArrayList();
while (refElem != null) {
refs.add(new DOMReference(refElem, context, provider));
refElem = DOMUtils.getNextSiblingElement(refElem);
}
this.references = Collections.unmodifiableList(refs);
}
public String getId() {
return id;
}
public List getReferences() {
return references;
}
public void marshal(Node parent, String dsPrefix, DOMCryptoContext context)
throws MarshalException {
Document ownerDoc = DOMUtils.getOwnerDocument(parent);
Element manElem = DOMUtils.createElement
(ownerDoc, "Manifest", XMLSignature.XMLNS, dsPrefix);
DOMUtils.setAttributeID(manElem, "Id", id);
// add references
for (int i = 0, size = references.size(); i < size; i++) {
DOMReference ref = (DOMReference) references.get(i);
ref.marshal(manElem, dsPrefix, context);
}
parent.appendChild(manElem);
}
public boolean equals(Object o) {
if (this == o) {
return true;
}
if (!(o instanceof Manifest)) {
return false;
}
Manifest oman = (Manifest) o;
boolean idsEqual = (id == null ? oman.getId() == null :
id.equals(oman.getId()));
return (idsEqual && references.equals(oman.getReferences()));
}
}
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