com.sun.xml.bind.v2.runtime.output.C14nXmlOutput Maven / Gradle / Ivy

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Metro Web Services Runtime OSGi Bundle
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/*
 * Copyright (c) 1997, 2018 Oracle and/or its affiliates. All rights reserved.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Distribution License v. 1.0, which is available at
 * http://www.eclipse.org/org/documents/edl-v10.php.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */

package com.sun.xml.bind.v2.runtime.output;

import java.io.IOException;
import java.io.OutputStream;
import java.util.Arrays;
import java.util.Collections;

import com.sun.xml.bind.api.JAXBRIContext;
import com.sun.xml.bind.v2.runtime.Name;
import internal.com.sun.istack.FinalArrayList;
import com.sun.xml.bind.marshaller.CharacterEscapeHandler;

/**
 * {@link XmlOutput} that generates canonical XML.
 *
 * @author Kohsuke Kawaguchi
 */
public class C14nXmlOutput extends UTF8XmlOutput {
    public C14nXmlOutput(OutputStream out, Encoded[] localNames, boolean namedAttributesAreOrdered, CharacterEscapeHandler escapeHandler) {
        super(out, localNames, escapeHandler);
        this.namedAttributesAreOrdered = namedAttributesAreOrdered;

        for( int i=0; i otherAttributes = new FinalArrayList();

    /**
     * True if {@link JAXBRIContext} is created with c14n support on,
     * in which case all named attributes are sorted by the marshaller
     * and we won't have to do it here.
     */
    private final boolean namedAttributesAreOrdered;

    final class StaticAttribute implements Comparable {
        Name name;
        String value;

        public void set(Name name, String value) {
            this.name = name;
            this.value = value;
        }

        void write() throws IOException {
            C14nXmlOutput.super.attribute(name,value);
        }

        DynamicAttribute toDynamicAttribute() {
            int nsUriIndex = name.nsUriIndex;
            int prefix;
            if(nsUriIndex==-1)
                prefix = -1;
            else
                prefix = nsUriIndex2prefixIndex[nsUriIndex];
            return new DynamicAttribute(
                prefix, name.localName, value );
        }

        public int compareTo(StaticAttribute that) {
            return this.name.compareTo(that.name);
        }

    }

    final class DynamicAttribute implements Comparable {
        final int prefix;
        final String localName;
        final String value;

        public DynamicAttribute(int prefix, String localName, String value) {
            this.prefix = prefix;
            this.localName = localName;
            this.value = value;
        }

        private String getURI() {
            if(prefix==-1)  return "";
            else            return nsContext.getNamespaceURI(prefix);
        }

        public int compareTo(DynamicAttribute that) {
            int r = this.getURI().compareTo(that.getURI());
            if(r!=0)    return r;
            return this.localName.compareTo(that.localName);
        }
    }

    @Override
    public void attribute(Name name, String value) throws IOException {
        if(staticAttributes.length==len) {
            // reallocate
            int newLen = len*2;
            StaticAttribute[] newbuf = new StaticAttribute[newLen];
            System.arraycopy(staticAttributes,0,newbuf,0,len);
            for(int i=len;insBuf.length)
            nsBuf = new int[count];

        for( int i=count-1; i>=0; i-- )
            nsBuf[i] = base+i;

        // do a bubble sort. Hopefully # of ns decls are small enough to justify bubble sort.
        // faster algorithm is more compliated to implement
        for( int i=0; i 0 ) {
                    // swap
                    int t = nsBuf[j];
                    nsBuf[j] = nsBuf[i];
                    nsBuf[i] = t;
                }
            }
        }

        // write them out
        for( int i=0; i