Examples of javax.imageio.metadata.IIOInvalidTreeException

javax.imageio.metadata.IIOInvalidTreeException
An IIOInvalidTreeException is thrown when an attempt by an IIOMetadata object to parse a tree of IIOMetadataNodes fails. The node that led to the parsing error may be stored. As with any parsing error, the actual error may occur at a different point that that where it is detected. The node returned by getOffendingNode should merely be considered as a clue to the actual nature of the problem. @see IIOMetadata#setFromTree @see IIOMetadata#mergeTree @see IIOMetadataNode

            (SOSMarkerSegment) findMarkerSegment(SOSMarkerSegment.class, true);
        SOSMarkerSegment lastSOS =
            (SOSMarkerSegment) findMarkerSegment(SOSMarkerSegment.class, false);
        if (firstSOS != null) {
            if (firstSOS != lastSOS) {
                throw new IIOInvalidTreeException
                    ("Can't merge SOS node into a tree with > 1 SOS node", node);
            }
            firstSOS.updateFromNativeNode(node, false);
        } else {
            markerSequence.add(new SOSMarkerSegment(node));

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            } else if (name.equals("Text")) {
                mergeStandardTextNode(node);
            } else if (name.equals("Transparency")) {
                mergeStandardTransparencyNode(node);
            } else {
                throw new IIOInvalidTreeException("Invalid node: " + name, node);
            }
        }
    }

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        // this to the transparency processor below.  If we discover that
        // the nodes are not in order, throw an exception as the tree is
        // invalid.


        if (transparencyDone) {
            throw new IIOInvalidTreeException
                ("Transparency node must follow Chroma node", node);
        }


        Node csType = node.getFirstChild();
        if ((csType == null) || !csType.getNodeName().equals("ColorSpaceType")) {

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        // Build a whole new marker sequence from the tree


        String name = root.getNodeName();
        if (name != ((isStream) ? JPEG.nativeStreamMetadataFormatName
                                : JPEG.nativeImageMetadataFormatName)) {
            throw new IIOInvalidTreeException("Invalid root node name: " + name,
                                              root);
        }
        if (!isStream) {
            if (root.getChildNodes().getLength() != 2) { // JPEGvariety and markerSequence
                throw new IIOInvalidTreeException(
                    "JPEGvariety and markerSequence nodes must be present", root);
            }


            Node JPEGvariety = root.getFirstChild();

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            } else if (childName.equals("sof")) {
                markerSequence.add(new SOFMarkerSegment(node));
            } else if (childName.equals("sos")) {
                markerSequence.add(new SOSMarkerSegment(node));
            } else {
                throw new IIOInvalidTreeException("Invalid "
                    + (isStream ? "stream " : "image ") + "child: "
                    + childName, node);
            }
        }
    }

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        Qtable(Node node) throws IIOInvalidTreeException {
            if (node.getNodeName().equals("dqtable")) {
                NamedNodeMap attrs = node.getAttributes();
                int count = attrs.getLength();
                if ((count < 1) || (count > 2)) {
                    throw new IIOInvalidTreeException
                        ("dqtable node must have 1 or 2 attributes", node);
                }
                elementPrecision = 0;
                tableID = getAttributeValue(node, attrs, "qtableId", 0, 3, true);
                if (node instanceof IIOMetadataNode) {
                    IIOMetadataNode ourNode = (IIOMetadataNode) node;
                    JPEGQTable table = (JPEGQTable) ourNode.getUserObject();
                    if (table == null) {
                        throw new IIOInvalidTreeException
                            ("dqtable node must have user object", node);
                    }
                    data = table.getTable();
                } else {
                    throw new IIOInvalidTreeException
                        ("dqtable node must have user object", node);
                }
            } else {
                throw new IIOInvalidTreeException
                    ("Invalid node, expected dqtable", node);
            }
        }

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    //


    // Shorthand for throwing an IIOInvalidTreeException
    protected static void fatal(Node node, String reason)
      throws IIOInvalidTreeException {
        throw new IIOInvalidTreeException(reason, node);
    }

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        // Only the transform is required
        NamedNodeMap attrs = node.getAttributes();
        transform = getAttributeValue(node, attrs, "transform", 0, 2, true);
        int count = attrs.getLength();
        if (count > 4) {
            throw new IIOInvalidTreeException
                ("Adobe APP14 node cannot have > 4 attributes", node);
        }
        if (count > 1) {
            int value = getAttributeValue(node, attrs, "version",
                                          100, 255, false);

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        }
        if (node.hasChildNodes()) {
            NodeList children = node.getChildNodes();
            int count = children.getLength();
            if (count > 2) {
                throw new IIOInvalidTreeException
                    ("app0JFIF node cannot have > 2 children", node);
            }
            for (int i = 0; i < count; i++) {
                Node child = children.item(i);
                String name = child.getNodeName();
                if (name.equals("JFXX")) {
                    if ((!extSegments.isEmpty()) && fromScratch) {
                        throw new IIOInvalidTreeException
                            ("app0JFIF node cannot have > 1 JFXX node", node);
                    }
                    NodeList exts = child.getChildNodes();
                    int extCount = exts.getLength();
                    for (int j = 0; j < extCount; j++) {
                        Node ext = exts.item(j);
                        extSegments.add(new JFIFExtensionMarkerSegment(ext));
                    }
                }
                if (name.equals("app2ICC")) {
                    if ((iccSegment != null) && fromScratch) {
                        throw new IIOInvalidTreeException
                            ("> 1 ICC APP2 Marker Segment not supported", node);
                    }
                    iccSegment = new ICCMarkerSegment(child);
                }
            }

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                                         "extensionCode",
                                         THUMB_JPEG,
                                         THUMB_RGB,
                                         false);
                if (code == THUMB_UNASSIGNED) {
                throw new IIOInvalidTreeException
                    ("invalid extensionCode attribute value", node);
                }
            } else {
                code = THUMB_UNASSIGNED;
            }
            // Now the child
            if (node.getChildNodes().getLength() != 1) {
                throw new IIOInvalidTreeException
                    ("app0JFXX node must have exactly 1 child", node);
            }
            Node child = node.getFirstChild();
            String name = child.getNodeName();
            if (name.equals("JFIFthumbJPEG")) {
                if (code == THUMB_UNASSIGNED) {
                    code = THUMB_JPEG;
                }
                thumb = new JFIFThumbJPEG(child);
            } else if (name.equals("JFIFthumbPalette")) {
                if (code == THUMB_UNASSIGNED) {
                    code = THUMB_PALETTE;
                }
                thumb = new JFIFThumbPalette(child);
            } else if (name.equals("JFIFthumbRGB")) {
                if (code == THUMB_UNASSIGNED) {
                    code = THUMB_RGB;
                }
                thumb = new JFIFThumbRGB(child);
            } else {
                throw new IIOInvalidTreeException
                    ("unrecognized app0JFXX child node", node);
            }
        }

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