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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 (c) 2005, 2008, Oracle and/or its affiliates. All rights reserved. *//* * $Id: DOMXMLObject.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;import org.w3c.dom.NodeList; /** * DOM-based implementation of XMLObject. * * @author Sean Mullan */public final class DOMXMLObject extends DOMStructure implements XMLObject {     private final String id;    private final String mimeType;    private final String encoding;    private final List content;     /**     * Creates an <code>XMLObject</code> from the specified parameters.     *     * @param content a list of {@link XMLStructure}s. The list     *    is defensively copied to protect against subsequent modification.     *    May be <code>null</code> or empty.     * @param id the Id (may be <code>null</code>)     * @param mimeType the mime type (may be <code>null</code>)     * @param encoding the encoding (may be <code>null</code>)     * @return an <code>XMLObject</code>     * @throws ClassCastException if <code>content</code> contains any     *    entries that are not of type {@link XMLStructure}     */    public DOMXMLObject(List content, String id, String mimeType,        String encoding) {        if (content == null || content.isEmpty()) {            this.content = Collections.EMPTY_LIST;        } else {            List contentCopy = new ArrayList(content);            for (int i = 0, size = contentCopy.size(); i < size; i++) {                if (!(contentCopy.get(i) instanceof XMLStructure)) {                    throw new ClassCastException                        ("content["+i+"] is not a valid type");                }            }            this.content = Collections.unmodifiableList(contentCopy);        }        this.id = id;        this.mimeType = mimeType;        this.encoding = encoding;    }     /**     * Creates an <code>XMLObject</code> from an element.     *     * @param objElem an Object element     * @throws MarshalException if there is an error when unmarshalling     */    public DOMXMLObject(Element objElem, XMLCryptoContext context,        Provider provider) throws MarshalException {        // unmarshal attributes        this.encoding = DOMUtils.getAttributeValue(objElem, "Encoding");        this.id = DOMUtils.getAttributeValue(objElem, "Id");        this.mimeType = DOMUtils.getAttributeValue(objElem, "MimeType");         NodeList nodes = objElem.getChildNodes();        int length = nodes.getLength();        List content = new ArrayList(length);        for (int i = 0; i < length; i++) {            Node child = nodes.item(i);            if (child.getNodeType() == Node.ELEMENT_NODE) {                Element childElem = (Element) child;                String tag = childElem.getLocalName();                if (tag.equals("Manifest")) {                    content.add(new DOMManifest(childElem, context, provider));                    continue;                } else if (tag.equals("SignatureProperties")) {                    content.add(new DOMSignatureProperties(childElem));                    continue;                } else if (tag.equals("X509Data")) {                    content.add(new DOMX509Data(childElem));                    continue;                }                //@@@FIXME: check for other dsig structures            }            content.add(new javax.xml.crypto.dom.DOMStructure(child));        }        if (content.isEmpty()) {            this.content = Collections.EMPTY_LIST;        } else {            this.content = Collections.unmodifiableList(content);        }    }     public List getContent() {        return content;    }     public String getId() {        return id;    }     public String getMimeType() {        return mimeType;    }     public String getEncoding() {        return encoding;    }     public void marshal(Node parent, String dsPrefix, DOMCryptoContext context)        throws MarshalException {        Document ownerDoc = DOMUtils.getOwnerDocument(parent);         Element objElem = DOMUtils.createElement            (ownerDoc, "Object", XMLSignature.XMLNS, dsPrefix);         // set attributes        DOMUtils.setAttributeID(objElem, "Id", id);        DOMUtils.setAttribute(objElem, "MimeType", mimeType);        DOMUtils.setAttribute(objElem, "Encoding", encoding);         // create and append any elements and mixed content, if necessary        for (int i = 0, size = content.size(); i < size; i++) {            XMLStructure object = (XMLStructure) content.get(i);            if (object instanceof DOMStructure) {                ((DOMStructure) object).marshal(objElem, dsPrefix, context);            } else {                javax.xml.crypto.dom.DOMStructure domObject =                    (javax.xml.crypto.dom.DOMStructure) object;                DOMUtils.appendChild(objElem, domObject.getNode());            }        }         parent.appendChild(objElem);    }     public boolean equals(Object o) {        if (this == o) {            return true;        }         if (!(o instanceof XMLObject)) {            return false;        }        XMLObject oxo = (XMLObject) o;         boolean idsEqual = (id == null ? oxo.getId() == null :            id.equals(oxo.getId()));        boolean encodingsEqual = (encoding == null ? oxo.getEncoding() == null :            encoding.equals(oxo.getEncoding()));        boolean mimeTypesEqual = (mimeType == null ? oxo.getMimeType() == null :            mimeType.equals(oxo.getMimeType()));         return (idsEqual && encodingsEqual && mimeTypesEqual &&            equalsContent(oxo.getContent()));    }     private boolean equalsContent(List otherContent) {        if (content.size() != otherContent.size()) {            return false;        }        for (int i = 0, osize = otherContent.size(); i < osize; i++) {            XMLStructure oxs = (XMLStructure) otherContent.get(i);            XMLStructure xs = (XMLStructure) 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;    }}