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Java example source code file (DOMSignatureProperty.java)
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The DOMSignatureProperty.java Java example source code
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* DO NOT REMOVE OR ALTER!
*/
/**
* 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 (c) 2005, 2013, Oracle and/or its affiliates. All rights reserved.
*/
/*
* $Id: DOMSignatureProperty.java 1333415 2012-05-03 12:03:51Z coheigea $
*/
package org.jcp.xml.dsig.internal.dom;
import javax.xml.crypto.*;
import javax.xml.crypto.dom.DOMCryptoContext;
import javax.xml.crypto.dsig.*;
import java.util.*;
import org.w3c.dom.Attr;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
/**
* DOM-based implementation of SignatureProperty.
*
* @author Sean Mullan
*/
public final class DOMSignatureProperty extends DOMStructure
implements SignatureProperty {
private final String id;
private final String target;
private final List<XMLStructure> content;
/**
* Creates a <code>SignatureProperty from the specified parameters.
*
* @param content a list of one or more {@link XMLStructure}s. The list
* is defensively copied to protect against subsequent modification.
* @param target the target URI
* @param id the Id (may be <code>null)
* @return a <code>SignatureProperty
* @throws ClassCastException if <code>content contains any
* entries that are not of type {@link XMLStructure}
* @throws IllegalArgumentException if <code>content is empty
* @throws NullPointerException if <code>content or
* <code>target is null
*/
public DOMSignatureProperty(List<? extends XMLStructure> content,
String target, String id)
{
if (target == null) {
throw new NullPointerException("target cannot be null");
} else if (content == null) {
throw new NullPointerException("content cannot be null");
} else if (content.isEmpty()) {
throw new IllegalArgumentException("content cannot be empty");
} else {
this.content = Collections.unmodifiableList(
new ArrayList<XMLStructure>(content));
for (int i = 0, size = this.content.size(); i < size; i++) {
if (!(this.content.get(i) instanceof XMLStructure)) {
throw new ClassCastException
("content["+i+"] is not a valid type");
}
}
}
this.target = target;
this.id = id;
}
/**
* Creates a <code>DOMSignatureProperty from an element.
*
* @param propElem a SignatureProperty element
*/
public DOMSignatureProperty(Element propElem, XMLCryptoContext context)
throws MarshalException
{
// unmarshal attributes
target = DOMUtils.getAttributeValue(propElem, "Target");
if (target == null) {
throw new MarshalException("target cannot be null");
}
Attr attr = propElem.getAttributeNodeNS(null, "Id");
if (attr != null) {
id = attr.getValue();
propElem.setIdAttributeNode(attr, true);
} else {
id = null;
}
NodeList nodes = propElem.getChildNodes();
int length = nodes.getLength();
List<XMLStructure> content = new ArrayList(length);
for (int i = 0; i < length; i++) {
content.add(new javax.xml.crypto.dom.DOMStructure(nodes.item(i)));
}
if (content.isEmpty()) {
throw new MarshalException("content cannot be empty");
} else {
this.content = Collections.unmodifiableList(content);
}
}
public List getContent() {
return content;
}
public String getId() {
return id;
}
public String getTarget() {
return target;
}
public void marshal(Node parent, String dsPrefix, DOMCryptoContext context)
throws MarshalException
{
Document ownerDoc = DOMUtils.getOwnerDocument(parent);
Element propElem = DOMUtils.createElement(ownerDoc, "SignatureProperty",
XMLSignature.XMLNS, dsPrefix);
// set attributes
DOMUtils.setAttributeID(propElem, "Id", id);
DOMUtils.setAttribute(propElem, "Target", target);
// create and append any elements and mixed content
for (XMLStructure property : content) {
DOMUtils.appendChild(propElem,
((javax.xml.crypto.dom.DOMStructure)property).getNode());
}
parent.appendChild(propElem);
}
@Override
public boolean equals(Object o) {
if (this == o) {
return true;
}
if (!(o instanceof SignatureProperty)) {
return false;
}
SignatureProperty osp = (SignatureProperty)o;
boolean idsEqual = (id == null ? osp.getId() == null
: id.equals(osp.getId()));
@SuppressWarnings("unchecked")
List<XMLStructure> ospContent = osp.getContent();
return (equalsContent(ospContent) &&
target.equals(osp.getTarget()) && idsEqual);
}
@Override
public int hashCode() {
int result = 17;
if (id != null) {
result = 31 * result + id.hashCode();
}
result = 31 * result + target.hashCode();
result = 31 * result + content.hashCode();
return result;
}
private boolean equalsContent(List<XMLStructure> otherContent) {
int osize = otherContent.size();
if (content.size() != osize) {
return false;
}
for (int i = 0; i < osize; i++) {
XMLStructure oxs = otherContent.get(i);
XMLStructure xs = content.get(i);
if (oxs instanceof javax.xml.crypto.dom.DOMStructure) {
if (!(xs instanceof javax.xml.crypto.dom.DOMStructure)) {
return false;
}
Node onode = ((javax.xml.crypto.dom.DOMStructure)oxs).getNode();
Node node = ((javax.xml.crypto.dom.DOMStructure)xs).getNode();
if (!DOMUtils.nodesEqual(node, onode)) {
return false;
}
} else {
if (!(xs.equals(oxs))) {
return false;
}
}
}
return true;
}
}
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