Java XML Transform Usage paramsEqual(AlgorithmParameterSpec spec1, AlgorithmParameterSpec spec2)

Description

params Equal

License

Apache License

Declaration

public static boolean paramsEqual(AlgorithmParameterSpec spec1, AlgorithmParameterSpec spec2) 

Method Source Code

//package com.java2s;
/**/*from  w w  w.  j ava2  s.c  o  m*/
 * 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.
 */

import java.util.*;
import java.security.spec.AlgorithmParameterSpec;

import org.w3c.dom.Node;

import javax.xml.crypto.*;

import javax.xml.crypto.dsig.spec.*;

public class Main {
    public static boolean paramsEqual(AlgorithmParameterSpec spec1, AlgorithmParameterSpec spec2) {
        if (spec1 == spec2) {
            return true;
        }
        if (spec1 instanceof XPathFilter2ParameterSpec && spec2 instanceof XPathFilter2ParameterSpec) {
            return paramsEqual((XPathFilter2ParameterSpec) spec1, (XPathFilter2ParameterSpec) spec2);
        }
        if (spec1 instanceof ExcC14NParameterSpec && spec2 instanceof ExcC14NParameterSpec) {
            return paramsEqual((ExcC14NParameterSpec) spec1, (ExcC14NParameterSpec) spec2);
        }
        if (spec1 instanceof XPathFilterParameterSpec && spec2 instanceof XPathFilterParameterSpec) {
            return paramsEqual((XPathFilterParameterSpec) spec1, (XPathFilterParameterSpec) spec2);
        }
        if (spec1 instanceof XSLTTransformParameterSpec && spec2 instanceof XSLTTransformParameterSpec) {
            return paramsEqual((XSLTTransformParameterSpec) spec1, (XSLTTransformParameterSpec) spec2);
        }
        return false;
    }

    private static boolean paramsEqual(XPathFilter2ParameterSpec spec1, XPathFilter2ParameterSpec spec2) {
        @SuppressWarnings("unchecked")
        List<XPathType> types = spec1.getXPathList();
        @SuppressWarnings("unchecked")
        List<XPathType> otypes = spec2.getXPathList();
        int size = types.size();
        if (size != otypes.size()) {
            return false;
        }
        for (int i = 0; i < size; i++) {
            XPathType type = types.get(i);
            XPathType otype = otypes.get(i);
            if (!type.getExpression().equals(otype.getExpression())
                    || !type.getNamespaceMap().equals(otype.getNamespaceMap())
                    || type.getFilter() != otype.getFilter()) {
                return false;
            }
        }
        return true;
    }

    private static boolean paramsEqual(ExcC14NParameterSpec spec1, ExcC14NParameterSpec spec2) {
        return spec1.getPrefixList().equals(spec2.getPrefixList());
    }

    private static boolean paramsEqual(XPathFilterParameterSpec spec1, XPathFilterParameterSpec spec2) {
        return spec1.getXPath().equals(spec2.getXPath()) && spec1.getNamespaceMap().equals(spec2.getNamespaceMap());
    }

    private static boolean paramsEqual(XSLTTransformParameterSpec spec1, XSLTTransformParameterSpec spec2) {

        XMLStructure ostylesheet = spec2.getStylesheet();
        if (!(ostylesheet instanceof javax.xml.crypto.dom.DOMStructure)) {
            return false;
        }
        Node ostylesheetElem = ((javax.xml.crypto.dom.DOMStructure) ostylesheet).getNode();
        XMLStructure stylesheet = spec1.getStylesheet();
        Node stylesheetElem = ((javax.xml.crypto.dom.DOMStructure) stylesheet).getNode();
        return nodesEqual(stylesheetElem, ostylesheetElem);
    }

    /**
     * Compares 2 nodes for equality. Implementation is not complete.
     */
    public static boolean nodesEqual(Node thisNode, Node otherNode) {
        if (thisNode == otherNode) {
            return true;
        }
        if (thisNode.getNodeType() != otherNode.getNodeType()) {
            return false;
        }
        // FIXME - test content, etc
        return true;
    }
}

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