[8084] | 1 | /*
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| 2 | * SVG Salamander
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| 3 | * Copyright (c) 2004, Mark McKay
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| 4 | * All rights reserved.
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| 5 | *
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[11525] | 6 | * Redistribution and use in source and binary forms, with or
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[8084] | 7 | * without modification, are permitted provided that the following
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| 8 | * conditions are met:
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| 9 | *
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[11525] | 10 | * - Redistributions of source code must retain the above
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[8084] | 11 | * copyright notice, this list of conditions and the following
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| 12 | * disclaimer.
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| 13 | * - Redistributions in binary form must reproduce the above
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| 14 | * copyright notice, this list of conditions and the following
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[11525] | 15 | * disclaimer in the documentation and/or other materials
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[8084] | 16 | * provided with the distribution.
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| 17 | *
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| 18 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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| 19 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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| 20 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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| 21 | * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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| 22 | * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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| 23 | * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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| 24 | * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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| 25 | * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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| 26 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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| 27 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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| 28 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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[11525] | 29 | * OF THE POSSIBILITY OF SUCH DAMAGE.
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| 30 | *
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[8084] | 31 | * Mark McKay can be contacted at mark@kitfox.com. Salamander and other
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| 32 | * projects can be found at http://www.kitfox.com
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| 33 | *
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| 34 | * Created on February 18, 2004, 11:43 PM
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| 35 | */
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| 36 | package com.kitfox.svg;
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| 37 |
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| 38 | import java.awt.Graphics2D;
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| 39 | import java.awt.image.BufferedImage;
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| 40 | import java.beans.PropertyChangeListener;
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| 41 | import java.beans.PropertyChangeSupport;
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| 42 | import java.io.BufferedInputStream;
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| 43 | import java.io.ByteArrayInputStream;
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| 44 | import java.io.ByteArrayOutputStream;
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| 45 | import java.io.IOException;
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| 46 | import java.io.InputStream;
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| 47 | import java.io.ObjectInputStream;
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| 48 | import java.io.ObjectOutputStream;
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| 49 | import java.io.Reader;
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| 50 | import java.io.Serializable;
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| 51 | import java.lang.ref.SoftReference;
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| 52 | import java.net.MalformedURLException;
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| 53 | import java.net.URI;
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| 54 | import java.net.URISyntaxException;
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| 55 | import java.net.URL;
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| 56 | import java.util.ArrayList;
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[10746] | 57 | import java.util.Base64;
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[8084] | 58 | import java.util.HashMap;
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| 59 | import java.util.logging.Level;
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| 60 | import java.util.logging.Logger;
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| 61 | import java.util.zip.GZIPInputStream;
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[11525] | 62 |
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[8084] | 63 | import javax.imageio.ImageIO;
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[10741] | 64 | import javax.xml.parsers.ParserConfigurationException;
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| 65 | import javax.xml.parsers.SAXParserFactory;
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[11525] | 66 |
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[8084] | 67 | import org.xml.sax.EntityResolver;
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| 68 | import org.xml.sax.InputSource;
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| 69 | import org.xml.sax.SAXException;
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| 70 | import org.xml.sax.SAXParseException;
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| 71 | import org.xml.sax.XMLReader;
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| 72 |
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[11525] | 73 | import com.kitfox.svg.app.beans.SVGIcon;
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| 74 |
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[8084] | 75 | /**
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| 76 | * Many SVG files can be loaded at one time. These files will quite likely need
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| 77 | * to reference one another. The SVG universe provides a container for all these
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| 78 | * files and the means for them to relate to each other.
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| 79 | *
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| 80 | * @author Mark McKay
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| 81 | * @author <a href="mailto:mark@kitfox.com">Mark McKay</a>
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| 82 | */
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| 83 | public class SVGUniverse implements Serializable
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| 84 | {
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| 85 |
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| 86 | public static final long serialVersionUID = 0;
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| 87 | transient private PropertyChangeSupport changes = new PropertyChangeSupport(this);
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| 88 | /**
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| 89 | * Maps document URIs to their loaded SVG diagrams. Note that URIs for
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| 90 | * documents loaded from URLs will reflect their URLs and URIs for documents
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| 91 | * initiated from streams will have the scheme <i>svgSalamander</i>.
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| 92 | */
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[11525] | 93 | final HashMap<URI, SVGDiagram> loadedDocs = new HashMap<>();
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| 94 | final HashMap<String, Font> loadedFonts = new HashMap<>();
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| 95 | final HashMap<URL, SoftReference<BufferedImage>> loadedImages = new HashMap<>();
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[8084] | 96 | public static final String INPUTSTREAM_SCHEME = "svgSalamander";
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| 97 | /**
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| 98 | * Current time in this universe. Used for resolving attributes that are
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| 99 | * influenced by track information. Time is in milliseconds. Time 0
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| 100 | * coresponds to the time of 0 in each member diagram.
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| 101 | */
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| 102 | protected double curTime = 0.0;
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| 103 | private boolean verbose = false;
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| 104 | //Cache reader for efficiency
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| 105 | XMLReader cachedReader;
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| 106 |
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[14328] | 107 | //If true, <imageSVG> elements will only load image data that is included using inline data: uris
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| 108 | private boolean imageDataInlineOnly = false;
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| 109 |
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[8084] | 110 | /**
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| 111 | * Creates a new instance of SVGUniverse
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| 112 | */
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| 113 | public SVGUniverse()
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| 114 | {
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| 115 | }
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| 116 |
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| 117 | public void addPropertyChangeListener(PropertyChangeListener l)
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| 118 | {
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| 119 | changes.addPropertyChangeListener(l);
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| 120 | }
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| 121 |
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| 122 | public void removePropertyChangeListener(PropertyChangeListener l)
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| 123 | {
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| 124 | changes.removePropertyChangeListener(l);
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| 125 | }
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| 126 |
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| 127 | /**
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| 128 | * Release all loaded SVG document from memory
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| 129 | */
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| 130 | public void clear()
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| 131 | {
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| 132 | loadedDocs.clear();
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| 133 | loadedFonts.clear();
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| 134 | loadedImages.clear();
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| 135 | }
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| 136 |
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| 137 | /**
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[14328] | 138 | * Returns the current animation time in milliseconds.
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| 139 | */
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| 140 | public double getCurTime()
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| 141 | {
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| 142 | return curTime;
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| 143 | }
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| 144 |
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| 145 | public void setCurTime(double curTime)
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| 146 | {
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| 147 | double oldTime = this.curTime;
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| 148 | this.curTime = curTime;
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| 149 | changes.firePropertyChange("curTime", new Double(oldTime), new Double(curTime));
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| 150 | }
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| 151 |
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| 152 | /**
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| 153 | * Updates all time influenced style and presentation attributes in all SVG
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| 154 | * documents in this universe.
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| 155 | */
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| 156 | public void updateTime() throws SVGException
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| 157 | {
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| 158 | for (SVGDiagram dia : loadedDocs.values()) {
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| 159 | dia.updateTime(curTime);
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| 160 | }
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| 161 | }
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| 162 |
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| 163 | /**
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[8084] | 164 | * Called by the Font element to let the universe know that a font has been
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| 165 | * loaded and is available.
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| 166 | */
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| 167 | void registerFont(Font font)
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| 168 | {
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| 169 | loadedFonts.put(font.getFontFace().getFontFamily(), font);
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| 170 | }
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| 171 |
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| 172 | public Font getDefaultFont()
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| 173 | {
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[11525] | 174 | for (Font font : loadedFonts.values()) {
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| 175 | return font;
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[8084] | 176 | }
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| 177 | return null;
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| 178 | }
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| 179 |
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| 180 | public Font getFont(String fontName)
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| 181 | {
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[11525] | 182 | return loadedFonts.get(fontName);
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[8084] | 183 | }
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| 184 |
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| 185 | URL registerImage(URI imageURI)
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| 186 | {
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| 187 | String scheme = imageURI.getScheme();
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| 188 | if (scheme.equals("data"))
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| 189 | {
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| 190 | String path = imageURI.getRawSchemeSpecificPart();
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| 191 | int idx = path.indexOf(';');
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| 192 | String mime = path.substring(0, idx);
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| 193 | String content = path.substring(idx + 1);
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| 194 |
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| 195 | if (content.startsWith("base64"))
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| 196 | {
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| 197 | try
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| 198 | {
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[10746] | 199 | byte[] buf = Base64.getDecoder().decode(content.substring(6));
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[8084] | 200 | ByteArrayInputStream bais = new ByteArrayInputStream(buf);
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| 201 | BufferedImage img = ImageIO.read(bais);
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| 202 |
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| 203 | URL url;
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| 204 | int urlIdx = 0;
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| 205 | while (true)
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| 206 | {
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| 207 | url = new URL("inlineImage", "localhost", "img" + urlIdx);
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| 208 | if (!loadedImages.containsKey(url))
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| 209 | {
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| 210 | break;
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| 211 | }
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| 212 | urlIdx++;
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| 213 | }
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| 214 |
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[11525] | 215 | SoftReference<BufferedImage> ref = new SoftReference<>(img);
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[8084] | 216 | loadedImages.put(url, ref);
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| 217 |
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| 218 | return url;
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[8149] | 219 | }
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| 220 | catch (IOException | IllegalArgumentException ex)
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[8084] | 221 | {
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| 222 | Logger.getLogger(SVGConst.SVG_LOGGER).log(Level.WARNING,
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| 223 | "Could not decode inline image", ex);
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| 224 | }
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| 225 | }
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| 226 | return null;
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| 227 | } else
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| 228 | {
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| 229 | try
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| 230 | {
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| 231 | URL url = imageURI.toURL();
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| 232 | registerImage(url);
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| 233 | return url;
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| 234 | } catch (MalformedURLException ex)
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| 235 | {
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| 236 | Logger.getLogger(SVGConst.SVG_LOGGER).log(Level.WARNING,
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| 237 | "Bad url", ex);
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| 238 | }
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| 239 | return null;
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| 240 | }
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| 241 | }
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| 242 |
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| 243 | void registerImage(URL imageURL)
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| 244 | {
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| 245 | if (loadedImages.containsKey(imageURL))
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| 246 | {
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| 247 | return;
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| 248 | }
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| 249 |
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[11525] | 250 | SoftReference<BufferedImage> ref;
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[8084] | 251 | try
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| 252 | {
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| 253 | String fileName = imageURL.getFile();
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| 254 | if (".svg".equals(fileName.substring(fileName.length() - 4).toLowerCase()))
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| 255 | {
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| 256 | SVGIcon icon = new SVGIcon();
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| 257 | icon.setSvgURI(imageURL.toURI());
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| 258 |
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| 259 | BufferedImage img = new BufferedImage(icon.getIconWidth(), icon.getIconHeight(), BufferedImage.TYPE_INT_ARGB);
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| 260 | Graphics2D g = img.createGraphics();
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| 261 | icon.paintIcon(null, g, 0, 0);
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| 262 | g.dispose();
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[11525] | 263 | ref = new SoftReference<>(img);
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[8084] | 264 | } else
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| 265 | {
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| 266 | BufferedImage img = ImageIO.read(imageURL);
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[11525] | 267 | ref = new SoftReference<>(img);
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[8084] | 268 | }
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| 269 | loadedImages.put(imageURL, ref);
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| 270 | } catch (Exception e)
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| 271 | {
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| 272 | Logger.getLogger(SVGConst.SVG_LOGGER).log(Level.WARNING,
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| 273 | "Could not load image: " + imageURL, e);
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| 274 | }
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| 275 | }
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| 276 |
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| 277 | BufferedImage getImage(URL imageURL)
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| 278 | {
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[11525] | 279 | SoftReference<BufferedImage> ref = loadedImages.get(imageURL);
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[8084] | 280 | if (ref == null)
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| 281 | {
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| 282 | return null;
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| 283 | }
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| 284 |
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[11525] | 285 | BufferedImage img = ref.get();
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[8084] | 286 | //If image was cleared from memory, reload it
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| 287 | if (img == null)
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| 288 | {
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| 289 | try
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| 290 | {
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| 291 | img = ImageIO.read(imageURL);
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| 292 | } catch (Exception e)
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| 293 | {
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| 294 | Logger.getLogger(SVGConst.SVG_LOGGER).log(Level.WARNING,
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| 295 | "Could not load image", e);
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| 296 | }
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[11525] | 297 | ref = new SoftReference<>(img);
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[8084] | 298 | loadedImages.put(imageURL, ref);
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| 299 | }
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| 300 |
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| 301 | return img;
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| 302 | }
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| 303 |
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| 304 | /**
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| 305 | * Returns the element of the document at the given URI. If the document is
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| 306 | * not already loaded, it will be.
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| 307 | */
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| 308 | public SVGElement getElement(URI path)
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| 309 | {
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| 310 | return getElement(path, true);
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| 311 | }
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| 312 |
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| 313 | public SVGElement getElement(URL path)
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| 314 | {
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| 315 | try
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| 316 | {
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| 317 | URI uri = new URI(path.toString());
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| 318 | return getElement(uri, true);
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| 319 | } catch (Exception e)
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| 320 | {
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| 321 | Logger.getLogger(SVGConst.SVG_LOGGER).log(Level.WARNING,
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| 322 | "Could not parse url " + path, e);
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| 323 | }
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| 324 | return null;
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| 325 | }
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| 326 |
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| 327 | /**
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| 328 | * Looks up a href within our universe. If the href refers to a document
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| 329 | * that is not loaded, it will be loaded. The URL #target will then be
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| 330 | * checked against the SVG diagram's index and the coresponding element
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| 331 | * returned. If there is no coresponding index, null is returned.
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| 332 | */
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| 333 | public SVGElement getElement(URI path, boolean loadIfAbsent)
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| 334 | {
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| 335 | try
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| 336 | {
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| 337 | //Strip fragment from URI
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| 338 | URI xmlBase = new URI(path.getScheme(), path.getSchemeSpecificPart(), null);
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| 339 |
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[11525] | 340 | SVGDiagram dia = loadedDocs.get(xmlBase);
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[8084] | 341 | if (dia == null && loadIfAbsent)
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| 342 | {
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| 343 | //System.err.println("SVGUnivserse: " + xmlBase.toString());
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| 344 | //javax.swing.JOptionPane.showMessageDialog(null, xmlBase.toString());
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| 345 | URL url = xmlBase.toURL();
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| 346 |
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| 347 | loadSVG(url, false);
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[11525] | 348 | dia = loadedDocs.get(xmlBase);
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[8084] | 349 | if (dia == null)
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| 350 | {
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| 351 | return null;
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| 352 | }
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| 353 | }
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| 354 |
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| 355 | String fragment = path.getFragment();
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| 356 | return fragment == null ? dia.getRoot() : dia.getElement(fragment);
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| 357 | } catch (Exception e)
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| 358 | {
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| 359 | Logger.getLogger(SVGConst.SVG_LOGGER).log(Level.WARNING,
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| 360 | "Could not parse path " + path, e);
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| 361 | return null;
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| 362 | }
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| 363 | }
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| 364 |
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| 365 | public SVGDiagram getDiagram(URI xmlBase)
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| 366 | {
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| 367 | return getDiagram(xmlBase, true);
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| 368 | }
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| 369 |
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| 370 | /**
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| 371 | * Returns the diagram that has been loaded from this root. If diagram is
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| 372 | * not already loaded, returns null.
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| 373 | */
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| 374 | public SVGDiagram getDiagram(URI xmlBase, boolean loadIfAbsent)
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| 375 | {
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| 376 | if (xmlBase == null)
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| 377 | {
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| 378 | return null;
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| 379 | }
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| 380 |
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[11525] | 381 | SVGDiagram dia = loadedDocs.get(xmlBase);
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[8084] | 382 | if (dia != null || !loadIfAbsent)
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| 383 | {
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| 384 | return dia;
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| 385 | }
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| 386 |
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| 387 | //Load missing diagram
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| 388 | try
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| 389 | {
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| 390 | URL url;
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| 391 | if ("jar".equals(xmlBase.getScheme()) && xmlBase.getPath() != null && !xmlBase.getPath().contains("!/"))
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| 392 | {
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| 393 | //Workaround for resources stored in jars loaded by Webstart.
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| 394 | //http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=6753651
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| 395 | url = SVGUniverse.class.getResource("xmlBase.getPath()");
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| 396 | }
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| 397 | else
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| 398 | {
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| 399 | url = xmlBase.toURL();
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| 400 | }
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| 401 |
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| 402 |
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| 403 | loadSVG(url, false);
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[11525] | 404 | dia = loadedDocs.get(xmlBase);
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[8084] | 405 | return dia;
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| 406 | } catch (Exception e)
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| 407 | {
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| 408 | Logger.getLogger(SVGConst.SVG_LOGGER).log(Level.WARNING,
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| 409 | "Could not parse", e);
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| 410 | }
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| 411 |
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| 412 | return null;
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| 413 | }
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| 414 |
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| 415 | /**
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| 416 | * Wraps input stream in a BufferedInputStream. If it is detected that this
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| 417 | * input stream is GZIPped, also wraps in a GZIPInputStream for inflation.
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| 418 | *
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| 419 | * @param is Raw input stream
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| 420 | * @return Uncompressed stream of SVG data
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| 421 | * @throws java.io.IOException
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| 422 | */
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| 423 | private InputStream createDocumentInputStream(InputStream is) throws IOException
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| 424 | {
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| 425 | BufferedInputStream bin = new BufferedInputStream(is);
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| 426 | bin.mark(2);
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| 427 | int b0 = bin.read();
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| 428 | int b1 = bin.read();
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| 429 | bin.reset();
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| 430 |
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| 431 | //Check for gzip magic number
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| 432 | if ((b1 << 8 | b0) == GZIPInputStream.GZIP_MAGIC)
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| 433 | {
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| 434 | GZIPInputStream iis = new GZIPInputStream(bin);
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| 435 | return iis;
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| 436 | } else
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| 437 | {
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| 438 | //Plain text
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| 439 | return bin;
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| 440 | }
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| 441 | }
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| 442 |
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| 443 | public URI loadSVG(URL docRoot)
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| 444 | {
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| 445 | return loadSVG(docRoot, false);
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| 446 | }
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| 447 |
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| 448 | /**
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| 449 | * Loads an SVG file and all the files it references from the URL provided.
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| 450 | * If a referenced file already exists in the SVG universe, it is not
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| 451 | * reloaded.
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| 452 | *
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| 453 | * @param docRoot - URL to the location where this SVG file can be found.
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| 454 | * @param forceLoad - if true, ignore cached diagram and reload
|
---|
| 455 | * @return - The URI that refers to the loaded document
|
---|
| 456 | */
|
---|
| 457 | public URI loadSVG(URL docRoot, boolean forceLoad)
|
---|
| 458 | {
|
---|
| 459 | try
|
---|
| 460 | {
|
---|
| 461 | URI uri = new URI(docRoot.toString());
|
---|
| 462 | if (loadedDocs.containsKey(uri) && !forceLoad)
|
---|
| 463 | {
|
---|
| 464 | return uri;
|
---|
| 465 | }
|
---|
| 466 |
|
---|
| 467 | InputStream is = docRoot.openStream();
|
---|
| 468 | return loadSVG(uri, new InputSource(createDocumentInputStream(is)));
|
---|
| 469 | } catch (URISyntaxException ex)
|
---|
| 470 | {
|
---|
| 471 | Logger.getLogger(SVGConst.SVG_LOGGER).log(Level.WARNING,
|
---|
| 472 | "Could not parse", ex);
|
---|
| 473 | } catch (IOException e)
|
---|
| 474 | {
|
---|
| 475 | Logger.getLogger(SVGConst.SVG_LOGGER).log(Level.WARNING,
|
---|
| 476 | "Could not parse", e);
|
---|
| 477 | }
|
---|
| 478 |
|
---|
| 479 | return null;
|
---|
| 480 | }
|
---|
| 481 |
|
---|
| 482 | public URI loadSVG(InputStream is, String name) throws IOException
|
---|
| 483 | {
|
---|
| 484 | return loadSVG(is, name, false);
|
---|
| 485 | }
|
---|
| 486 |
|
---|
| 487 | public URI loadSVG(InputStream is, String name, boolean forceLoad) throws IOException
|
---|
| 488 | {
|
---|
| 489 | URI uri = getStreamBuiltURI(name);
|
---|
| 490 | if (uri == null)
|
---|
| 491 | {
|
---|
| 492 | return null;
|
---|
| 493 | }
|
---|
| 494 | if (loadedDocs.containsKey(uri) && !forceLoad)
|
---|
| 495 | {
|
---|
| 496 | return uri;
|
---|
| 497 | }
|
---|
| 498 |
|
---|
| 499 | return loadSVG(uri, new InputSource(createDocumentInputStream(is)));
|
---|
| 500 | }
|
---|
| 501 |
|
---|
| 502 | public URI loadSVG(Reader reader, String name)
|
---|
| 503 | {
|
---|
| 504 | return loadSVG(reader, name, false);
|
---|
| 505 | }
|
---|
| 506 |
|
---|
| 507 | /**
|
---|
| 508 | * This routine allows you to create SVG documents from data streams that
|
---|
| 509 | * may not necessarily have a URL to load from. Since every SVG document
|
---|
| 510 | * must be identified by a unique URL, Salamander provides a method to fake
|
---|
| 511 | * this for streams by defining it's own protocol - svgSalamander - for SVG
|
---|
| 512 | * documents without a formal URL.
|
---|
| 513 | *
|
---|
| 514 | * @param reader - A stream containing a valid SVG document
|
---|
| 515 | * @param name - <p>A unique name for this document. It will be used to
|
---|
| 516 | * construct a unique URI to refer to this document and perform resolution
|
---|
| 517 | * with relative URIs within this document.</p> <p>For example, a name of
|
---|
| 518 | * "/myScene" will produce the URI svgSalamander:/myScene.
|
---|
| 519 | * "/maps/canada/toronto" will produce svgSalamander:/maps/canada/toronto.
|
---|
| 520 | * If this second document then contained the href "../uk/london", it would
|
---|
| 521 | * resolve by default to svgSalamander:/maps/uk/london. That is, SVG
|
---|
| 522 | * Salamander defines the URI scheme svgSalamander for it's own internal use
|
---|
| 523 | * and uses it for uniquely identfying documents loaded by stream.</p> <p>If
|
---|
| 524 | * you need to link to documents outside of this scheme, you can either
|
---|
| 525 | * supply full hrefs (eg, href="url(http://www.kitfox.com/index.html)") or
|
---|
| 526 | * put the xml:base attribute in a tag to change the defaultbase URIs are
|
---|
| 527 | * resolved against</p> <p>If a name does not start with the character '/',
|
---|
| 528 | * it will be automatically prefixed to it.</p>
|
---|
| 529 | * @param forceLoad - if true, ignore cached diagram and reload
|
---|
| 530 | *
|
---|
| 531 | * @return - The URI that refers to the loaded document
|
---|
| 532 | */
|
---|
| 533 | public URI loadSVG(Reader reader, String name, boolean forceLoad)
|
---|
| 534 | {
|
---|
| 535 | //System.err.println(url.toString());
|
---|
| 536 | //Synthesize URI for this stream
|
---|
| 537 | URI uri = getStreamBuiltURI(name);
|
---|
| 538 | if (uri == null)
|
---|
| 539 | {
|
---|
| 540 | return null;
|
---|
| 541 | }
|
---|
| 542 | if (loadedDocs.containsKey(uri) && !forceLoad)
|
---|
| 543 | {
|
---|
| 544 | return uri;
|
---|
| 545 | }
|
---|
| 546 |
|
---|
| 547 | return loadSVG(uri, new InputSource(reader));
|
---|
| 548 | }
|
---|
| 549 |
|
---|
| 550 | /**
|
---|
| 551 | * Synthesize a URI for an SVGDiagram constructed from a stream.
|
---|
| 552 | *
|
---|
| 553 | * @param name - Name given the document constructed from a stream.
|
---|
| 554 | */
|
---|
| 555 | public URI getStreamBuiltURI(String name)
|
---|
| 556 | {
|
---|
| 557 | if (name == null || name.length() == 0)
|
---|
| 558 | {
|
---|
| 559 | return null;
|
---|
| 560 | }
|
---|
| 561 |
|
---|
| 562 | if (name.charAt(0) != '/')
|
---|
| 563 | {
|
---|
| 564 | name = '/' + name;
|
---|
| 565 | }
|
---|
| 566 |
|
---|
| 567 | try
|
---|
| 568 | {
|
---|
| 569 | //Dummy URL for SVG documents built from image streams
|
---|
| 570 | return new URI(INPUTSTREAM_SCHEME, name, null);
|
---|
| 571 | } catch (Exception e)
|
---|
| 572 | {
|
---|
| 573 | Logger.getLogger(SVGConst.SVG_LOGGER).log(Level.WARNING,
|
---|
| 574 | "Could not parse", e);
|
---|
| 575 | return null;
|
---|
| 576 | }
|
---|
| 577 | }
|
---|
| 578 |
|
---|
[10741] | 579 | private XMLReader getXMLReaderCached() throws SAXException, ParserConfigurationException
|
---|
[8084] | 580 | {
|
---|
| 581 | if (cachedReader == null)
|
---|
| 582 | {
|
---|
[10741] | 583 | SAXParserFactory factory = SAXParserFactory.newInstance();
|
---|
| 584 | factory.setNamespaceAware(true);
|
---|
| 585 | cachedReader = factory.newSAXParser().getXMLReader();
|
---|
[8084] | 586 | }
|
---|
| 587 | return cachedReader;
|
---|
| 588 | }
|
---|
| 589 |
|
---|
| 590 | protected URI loadSVG(URI xmlBase, InputSource is)
|
---|
| 591 | {
|
---|
| 592 | // Use an instance of ourselves as the SAX event handler
|
---|
| 593 | SVGLoader handler = new SVGLoader(xmlBase, this, verbose);
|
---|
| 594 |
|
---|
| 595 | //Place this docment in the universe before it is completely loaded
|
---|
| 596 | // so that the load process can refer to references within it's current
|
---|
| 597 | // document
|
---|
| 598 | loadedDocs.put(xmlBase, handler.getLoadedDiagram());
|
---|
| 599 |
|
---|
| 600 | try
|
---|
| 601 | {
|
---|
| 602 | // Parse the input
|
---|
| 603 | XMLReader reader = getXMLReaderCached();
|
---|
| 604 | reader.setEntityResolver(
|
---|
| 605 | new EntityResolver()
|
---|
| 606 | {
|
---|
| 607 | public InputSource resolveEntity(String publicId, String systemId)
|
---|
| 608 | {
|
---|
| 609 | //Ignore all DTDs
|
---|
| 610 | return new InputSource(new ByteArrayInputStream(new byte[0]));
|
---|
| 611 | }
|
---|
| 612 | });
|
---|
| 613 | reader.setContentHandler(handler);
|
---|
| 614 | reader.parse(is);
|
---|
| 615 |
|
---|
| 616 | handler.getLoadedDiagram().updateTime(curTime);
|
---|
| 617 | return xmlBase;
|
---|
| 618 | } catch (SAXParseException sex)
|
---|
| 619 | {
|
---|
| 620 | System.err.println("Error processing " + xmlBase);
|
---|
| 621 | System.err.println(sex.getMessage());
|
---|
| 622 |
|
---|
| 623 | loadedDocs.remove(xmlBase);
|
---|
| 624 | return null;
|
---|
| 625 | } catch (Throwable e)
|
---|
| 626 | {
|
---|
| 627 | Logger.getLogger(SVGConst.SVG_LOGGER).log(Level.WARNING,
|
---|
| 628 | "Could not load SVG " + xmlBase, e);
|
---|
| 629 | }
|
---|
| 630 |
|
---|
| 631 | return null;
|
---|
| 632 | }
|
---|
| 633 |
|
---|
| 634 | /**
|
---|
| 635 | * Get list of uris of all loaded documents and subdocuments.
|
---|
[11525] | 636 | * @return
|
---|
[8084] | 637 | */
|
---|
[11525] | 638 | public ArrayList<URI> getLoadedDocumentURIs()
|
---|
[8084] | 639 | {
|
---|
[11525] | 640 | return new ArrayList<>(loadedDocs.keySet());
|
---|
[8084] | 641 | }
|
---|
[11525] | 642 |
|
---|
[8084] | 643 | /**
|
---|
| 644 | * Remove loaded document from cache.
|
---|
[11525] | 645 | * @param uri
|
---|
[8084] | 646 | */
|
---|
| 647 | public void removeDocument(URI uri)
|
---|
| 648 | {
|
---|
| 649 | loadedDocs.remove(uri);
|
---|
| 650 | }
|
---|
[11525] | 651 |
|
---|
[8084] | 652 | public boolean isVerbose()
|
---|
| 653 | {
|
---|
| 654 | return verbose;
|
---|
| 655 | }
|
---|
| 656 |
|
---|
| 657 | public void setVerbose(boolean verbose)
|
---|
| 658 | {
|
---|
| 659 | this.verbose = verbose;
|
---|
| 660 | }
|
---|
| 661 |
|
---|
| 662 | /**
|
---|
| 663 | * Uses serialization to duplicate this universe.
|
---|
| 664 | */
|
---|
| 665 | public SVGUniverse duplicate() throws IOException, ClassNotFoundException
|
---|
| 666 | {
|
---|
| 667 | ByteArrayOutputStream bs = new ByteArrayOutputStream();
|
---|
| 668 | ObjectOutputStream os = new ObjectOutputStream(bs);
|
---|
| 669 | os.writeObject(this);
|
---|
| 670 | os.close();
|
---|
| 671 |
|
---|
| 672 | ByteArrayInputStream bin = new ByteArrayInputStream(bs.toByteArray());
|
---|
| 673 | ObjectInputStream is = new ObjectInputStream(bin);
|
---|
| 674 | SVGUniverse universe = (SVGUniverse) is.readObject();
|
---|
| 675 | is.close();
|
---|
| 676 |
|
---|
| 677 | return universe;
|
---|
| 678 | }
|
---|
[14328] | 679 |
|
---|
| 680 | /**
|
---|
| 681 | * @return the imageDataInlineOnly
|
---|
| 682 | */
|
---|
| 683 | public boolean isImageDataInlineOnly()
|
---|
| 684 | {
|
---|
| 685 | return imageDataInlineOnly;
|
---|
| 686 | }
|
---|
| 687 |
|
---|
| 688 | /**
|
---|
| 689 | * @param imageDataInlineOnly the imageDataInlineOnly to set
|
---|
| 690 | */
|
---|
| 691 | public void setImageDataInlineOnly(boolean imageDataInlineOnly)
|
---|
| 692 | {
|
---|
| 693 | this.imageDataInlineOnly = imageDataInlineOnly;
|
---|
| 694 | }
|
---|
[17364] | 695 |
|
---|
| 696 | public String statistics() {
|
---|
| 697 | return String.format("%s has loaded %d SVG images", this, loadedDocs.size());
|
---|
| 698 | }
|
---|
| 699 |
|
---|
[8084] | 700 | }
|
---|