diff options
Diffstat (limited to 'libjava/classpath/javax/imageio/metadata/IIOMetadataFormatImpl.java')
| -rw-r--r-- | libjava/classpath/javax/imageio/metadata/IIOMetadataFormatImpl.java | 842 |
1 files changed, 842 insertions, 0 deletions
diff --git a/libjava/classpath/javax/imageio/metadata/IIOMetadataFormatImpl.java b/libjava/classpath/javax/imageio/metadata/IIOMetadataFormatImpl.java index 2ce8f9c3d4b..aad30447c2f 100644 --- a/libjava/classpath/javax/imageio/metadata/IIOMetadataFormatImpl.java +++ b/libjava/classpath/javax/imageio/metadata/IIOMetadataFormatImpl.java @@ -38,6 +38,848 @@ exception statement from your version. */ package javax.imageio.metadata; +import org.w3c.dom.Attr; +import org.w3c.dom.DOMException; +import org.w3c.dom.Document; +import org.w3c.dom.Element; +import org.w3c.dom.NamedNodeMap; +import org.w3c.dom.Node; +import org.w3c.dom.NodeList; +import org.w3c.dom.TypeInfo; +import org.w3c.dom.UserDataHandler; +import java.util.ArrayList; +import java.util.HashMap; +import java.util.Map; +import java.util.Iterator; +import java.util.List; +import java.util.Locale; +import java.util.ResourceBundle; +import java.util.MissingResourceException; +import javax.imageio.ImageTypeSpecifier; + public abstract class IIOMetadataFormatImpl implements IIOMetadataFormat { + /** + * The standard metadata format name constant set to + * "javax_imageio_1.0". + */ + public static final String standardMetadataFormatName = "javax_imageio_1.0"; + + private String rootName; + + // These maps assume that each element name is unique. + + private Map nodes = new HashMap(); + + // A mapping from element name to child policy. + private Map childPolicies = new HashMap(); + + // A mapping from element name to the permissible number of + // children. Values in this map are length-two integer arrays; the + // first index is the minimum bound, the second index is the maximum + // bound. + private Map childRanges = new HashMap(); + + private String resourceBaseName; + + // Package-private so that it may be used in IIOMetadataNode. + static class IIOMetadataNodeAttr extends IIOMetadataNode + implements Attr + { + protected Element owner; + protected String name; + protected int dataType; + protected boolean required; + protected String defaultValue; + + public IIOMetadataNodeAttr (Element owner, + String name, + String defaultValue) + { + this (owner, name, IIOMetadataFormat.DATATYPE_STRING, + true, defaultValue); + } + + public IIOMetadataNodeAttr (Element owner, + String name, + int dataType, + boolean required, + String defaultValue) + { + this.owner = owner; + this.name = name; + this.dataType = dataType; + this.required = required; + this.defaultValue = defaultValue; + } + + public String getName () + { + return name; + } + + public Element getOwnerElement () + { + return owner; + } + + public int getDataType () + { + return dataType; + } + + public TypeInfo getSchemaTypeInfo () + { + return null; + } + + public boolean getSpecified () + { + return false; + } + + public String getValue () + { + return defaultValue; + } + + public boolean isId() + { + return false; + } + + public void setValue (String value) + { + } + + // new methods + + public boolean isRequired () + { + return required; + } + } + + private class IIOMetadataNodeAttrEnumerated extends IIOMetadataNodeAttr + { + protected List enumeratedValues; + + public IIOMetadataNodeAttrEnumerated (Element owner, + String name, + int dataType, + boolean required, + String defaultValue, + List enumeratedValues) + { + super (owner, name, dataType, required, defaultValue); + this.enumeratedValues = new ArrayList (enumeratedValues); + } + + public Object[] getEnumerations () + { + return enumeratedValues.toArray (); + } + } + + private class IIOMetadataNodeAttrBounded extends IIOMetadataNodeAttr + { + protected String minValue; + protected String maxValue; + protected boolean minInclusive; + protected boolean maxInclusive; + + public IIOMetadataNodeAttrBounded (Element owner, + String name, + int dataType, + boolean required, + String defaultValue, + String minValue, + String maxValue, + boolean minInclusive, + boolean maxInclusive) + { + super (owner, name, dataType, required, defaultValue); + this.minValue = minValue; + this.maxValue = maxValue; + this.minInclusive = minInclusive; + this.maxInclusive = maxInclusive; + } + + public String getMinValue () + { + return minValue; + } + + public String getMaxValue () + { + return maxValue; + } + } + + private class IIOMetadataNodeAttrList extends IIOMetadataNodeAttr + { + protected int listMinLength; + protected int listMaxLength; + + public IIOMetadataNodeAttrList (Element owner, + String name, + int dataType, + boolean required, + int listMinLength, + int listMaxLength) + { + super (owner, name, dataType, required, null); + this.listMinLength = listMinLength; + this.listMaxLength = listMaxLength; + } + + public int getListMinLength () + { + return listMinLength; + } + + public int getListMaxLength () + { + return listMaxLength; + } + } + + private class NodeObject + { + protected Element owner; + protected Class classType; + protected boolean required; + protected Object defaultValue; + protected int valueType; + + public NodeObject (Element owner, + Class classType, + boolean required, + Object defaultValue) + { + this.owner = owner; + this.classType = classType; + this.required = required; + this.defaultValue = defaultValue; + valueType = IIOMetadataFormat.VALUE_ARBITRARY; + } + + public int getValueType () + { + return valueType; + } + + public Class getClassType () + { + return classType; + } + + public Element getOwnerElement () + { + return owner; + } + + public Object getDefaultValue () + { + return defaultValue; + } + + public boolean isRequired () + { + return required; + } + } + + private class NodeObjectEnumerated extends NodeObject + { + protected List enumeratedValues; + + public NodeObjectEnumerated (Element owner, + Class classType, + boolean required, + Object defaultValue, + List enumeratedValues) + { + super (owner, classType, false, defaultValue); + this.enumeratedValues = enumeratedValues; + valueType = IIOMetadataFormat.VALUE_ENUMERATION; + } + + public Object[] getEnumerations () + { + return enumeratedValues.toArray(); + } + } + + private class NodeObjectBounded extends NodeObject + { + protected Comparable minValue; + protected Comparable maxValue; + protected boolean minInclusive; + protected boolean maxInclusive; + + public NodeObjectBounded (Element owner, + Class classType, + Object defaultValue, + Comparable minValue, + Comparable maxValue, + boolean minInclusive, + boolean maxInclusive) + { + super (owner, classType, false, defaultValue); + this.minValue = minValue; + this.maxValue = maxValue; + this.minInclusive = minInclusive; + this.maxInclusive = maxInclusive; + if (minInclusive) + { + if (maxInclusive) + valueType = IIOMetadataFormat.VALUE_RANGE_MIN_MAX_INCLUSIVE; + else + valueType = IIOMetadataFormat.VALUE_RANGE_MIN_INCLUSIVE; + } + else + { + if (maxInclusive) + valueType = IIOMetadataFormat.VALUE_RANGE_MAX_INCLUSIVE; + else + valueType = IIOMetadataFormat.VALUE_RANGE; + } + } + + public Comparable getMinValue () + { + return minValue; + } + + public Comparable getMaxValue () + { + return maxValue; + } + } + + private class NodeObjectArray extends NodeObject + { + protected Integer arrayMinLength; + protected Integer arrayMaxLength; + + public NodeObjectArray (Element owner, + Class classType, + int arrayMinLength, + int arrayMaxLength) + { + super (owner, classType, false, null); + this.arrayMinLength = new Integer (arrayMinLength); + this.arrayMaxLength = new Integer (arrayMaxLength); + valueType = IIOMetadataFormat.VALUE_LIST; + } + + public Comparable getArrayMinLength () + { + return arrayMinLength; + } + + public Comparable getArrayMaxLength () + { + return arrayMaxLength; + } + } + + /** + * Construct a blank IIOMetadataFormatImpl with the given root name + * and child policy. + * + * @param rootName the root element name + * @param childPolicy the child policy of the root element + * + * @exception IllegalArgumentException if rootName is null + * @exception IllegalArgumentException if childPolicy is + * CHILD_POLICY_REPEAT or if childPolicy is not a CHILD_POLICY + * constant + */ + public IIOMetadataFormatImpl (String rootName, int childPolicy) + { + if (rootName == null) + throw new IllegalArgumentException ("null argument"); + + if (childPolicy < IIOMetadataFormat.CHILD_POLICY_ALL + || childPolicy > IIOMetadataFormat.CHILD_POLICY_SOME + || childPolicy == IIOMetadataFormat.CHILD_POLICY_REPEAT) + throw new IllegalArgumentException ("wrong child policy"); + + nodes.put (rootName, new IIOMetadataNode (rootName)); + childPolicies.put (rootName, new Integer (childPolicy)); + this.rootName = rootName; + } + + /** + * Construct a blank IIOMetadataFormatImpl with the given root name, + * a child policy of CHILD_POLICY_REPEAT and the given minimum and + * maximum limits on the number of root element children. + * + * @param rootName the root element name + * @param minChildren the minimum number of children that this node + * can have + * @param maxChildren the maximum number of children that this node + * can have + * + * @exception IllegalArgumentException if rootName is null + * @exception IllegalArgumentException if minChildren is less than + * zero or greater than maxChildren + */ + public IIOMetadataFormatImpl (String rootName, + int minChildren, + int maxChildren) + { + if (rootName == null) + throw new IllegalArgumentException ("null argument"); + + if (minChildren < 0 || maxChildren < minChildren) + throw new IllegalArgumentException ("invalid min or max children argument"); + + nodes.put (rootName, new IIOMetadataNode (rootName)); + childPolicies.put (rootName, new Integer (IIOMetadataFormat.CHILD_POLICY_REPEAT)); + childRanges.put (rootName, new int [] { minChildren, maxChildren }); + this.rootName = rootName; + } + + protected void addAttribute (String elementName, + String attrName, + int dataType, + boolean required, + String defaultValue) + { + IIOMetadataNode node = (IIOMetadataNode) nodes.get (elementName); + node.setAttributeNode (new IIOMetadataNodeAttr (node, + attrName, + dataType, + required, + defaultValue)); + } + + protected void addAttribute (String elementName, + String attrName, + int dataType, + boolean required, + String defaultValue, + List enumeratedValues) + { + IIOMetadataNode node = (IIOMetadataNode) nodes.get (elementName); + node.setAttributeNode (new IIOMetadataNodeAttrEnumerated (node, + attrName, + dataType, + required, + defaultValue, + enumeratedValues)); + } + + protected void addAttribute (String elementName, + String attrName, + int dataType, + boolean required, + String defaultValue, + String minValue, + String maxValue, + boolean minInclusive, + boolean maxInclusive) + { + IIOMetadataNode node = (IIOMetadataNode) nodes.get (elementName); + node.setAttributeNode (new IIOMetadataNodeAttrBounded (node, + attrName, + dataType, + required, + defaultValue, + minValue, + maxValue, + minInclusive, + maxInclusive)); + } + + protected void addAttribute (String elementName, + String attrName, + int dataType, + boolean required, + int listMinLength, + int listMaxLength) + { + IIOMetadataNode node = (IIOMetadataNode) nodes.get (elementName); + node.setAttributeNode (new IIOMetadataNodeAttrList (node, + attrName, + dataType, + required, + listMinLength, + listMaxLength)); + } + + protected void addBooleanAttribute (String elementName, + String attrName, + boolean hasDefaultValue, + boolean defaultValue) + { + IIOMetadataNode node = (IIOMetadataNode) nodes.get (elementName); + + List enumeratedValues = new ArrayList(); + enumeratedValues.add ("TRUE"); + enumeratedValues.add ("FALSE"); + + node.setAttributeNode (new IIOMetadataNodeAttrEnumerated (node, + attrName, + IIOMetadataFormat.DATATYPE_BOOLEAN, + hasDefaultValue, + defaultValue ? "TRUE" : "FALSE", + enumeratedValues)); + } + + protected void addChildElement (String elementName, String parentName) + { + IIOMetadataNode node = (IIOMetadataNode) nodes.get (parentName); + + node.appendChild (new IIOMetadataNode (elementName)); + childPolicies.put (elementName, new Integer (IIOMetadataFormat.CHILD_POLICY_REPEAT)); + } + + protected void addElement (String elementName, String parentName, int childPolicy) + { + IIOMetadataNode node = (IIOMetadataNode) nodes.get (parentName); + + node.appendChild (new IIOMetadataNode (elementName)); + childPolicies.put (elementName, new Integer (childPolicy)); + } + + protected void addElement (String elementName, String parentName, + int minChildren, int maxChildren) + { + addChildElement (elementName, parentName); + childRanges.put (elementName, new int [] { minChildren, maxChildren }); + } + + private void addNodeObject (IIOMetadataNode node, NodeObject o) + { + node.setUserObject (o); + } + + private NodeObject getNodeObject (IIOMetadataNode node) + { + return (NodeObject) node.getUserObject (); + } + + private void removeNodeObject (IIOMetadataNode node) + { + node.setUserObject (null); + } + + protected void addObjectValue (String elementName, Class classType, + boolean required, Object defaultValue) + { + IIOMetadataNode node = (IIOMetadataNode) nodes.get (elementName); + addNodeObject (node, new NodeObject (node, + classType, + required, + defaultValue)); + } + + protected void addObjectValue (String elementName, Class classType, + boolean required, Object defaultValue, + List enumeratedValues) + { + IIOMetadataNode node = (IIOMetadataNode) nodes.get (elementName); + addNodeObject (node, new NodeObjectEnumerated (node, + classType, + required, + defaultValue, + enumeratedValues)); + } + + protected void addObjectValue (String elementName, Class classType, + Object defaultValue, + Comparable minValue, + Comparable maxValue, + boolean minInclusive, + boolean maxInclusive) + { + IIOMetadataNode node = (IIOMetadataNode) nodes.get (elementName); + addNodeObject (node, new NodeObjectBounded (node, + classType, + defaultValue, + minValue, + maxValue, + minInclusive, + maxInclusive)); + } + + protected void addObjectValue (String elementName, Class classType, + int arrayMinLength, int arrayMaxLength) + { + IIOMetadataNode node = (IIOMetadataNode) nodes.get (elementName); + addNodeObject (node, new NodeObjectArray (node, + classType, + arrayMinLength, + arrayMaxLength)); + } + + public String getRootName () + { + return rootName; + } + + protected String getResourceBaseName () + { + return resourceBaseName; + } + + public static IIOMetadataFormat getStandardFormatInstance () + { + // FIXME: populate this with the standard metadata format + return new IIOMetadataFormatImpl (standardMetadataFormatName, + IIOMetadataFormat.CHILD_POLICY_ALL) + { + public boolean canNodeAppear (String elementName, + ImageTypeSpecifier specifier) + { + return true; + } + }; + } + + public abstract boolean canNodeAppear (String elementName, + ImageTypeSpecifier specifier); + + protected void removeAttribute (String elementName, + String attrName) + { + IIOMetadataNode node = (IIOMetadataNode) nodes.get (elementName); + node.removeAttribute (attrName); + } + + protected void removeElement (String elementName) + { + nodes.remove (elementName); + } + + protected void removeObjectValue (String elementName) + { + IIOMetadataNode node = (IIOMetadataNode) nodes.get (elementName); + removeNodeObject (node); + } + + protected void setResourceBaseName (String resourceBaseName) + { + this.resourceBaseName = resourceBaseName; + } + + public int getAttributeDataType (String elementName, String attrName) + { + IIOMetadataNode node = (IIOMetadataNode) nodes.get (elementName); + IIOMetadataNodeAttr attr = (IIOMetadataNodeAttr) node.getAttributeNode (attrName); + return attr.getDataType (); + } + + public String getAttributeDefaultValue (String elementName, String attrName) + { + IIOMetadataNode node = (IIOMetadataNode) nodes.get (elementName); + IIOMetadataNodeAttr attr = (IIOMetadataNodeAttr) node.getAttributeNode (attrName); + return attr.getValue(); + } + + public String getAttributeDescription (String elementName, String attrName, Locale locale) + { + return getDescription (elementName + "/" + attrName, locale); + } + + public String[] getAttributeEnumerations (String elementName, String attrName) + { + IIOMetadataNode node = (IIOMetadataNode) nodes.get (elementName); + IIOMetadataNodeAttrEnumerated attr = + (IIOMetadataNodeAttrEnumerated) node.getAttributeNode (attrName); + + Object[] attrEnums = attr.getEnumerations(); + + String[] attrNames = new String[attrEnums.length]; + + for (int i = 0; i < attrEnums.length; i++) + { + attrNames[i] = (String) attrEnums[i]; + } + + return attrNames; + } + + public int getAttributeListMaxLength (String elementName, String attrName) + { + IIOMetadataNode node = (IIOMetadataNode) nodes.get (elementName); + IIOMetadataNodeAttrList attr = + (IIOMetadataNodeAttrList) node.getAttributeNode (attrName); + return attr.getListMaxLength(); + } + + public int getAttributeListMinLength (String elementName, String attrName) + { + IIOMetadataNode node = (IIOMetadataNode) nodes.get (elementName); + IIOMetadataNodeAttrList attr = + (IIOMetadataNodeAttrList) node.getAttributeNode (attrName); + return attr.getListMinLength(); + } + + public String getAttributeMaxValue (String elementName, String attrName) + { + IIOMetadataNode node = (IIOMetadataNode) nodes.get (elementName); + IIOMetadataNodeAttrBounded attr = + (IIOMetadataNodeAttrBounded) node.getAttributeNode (attrName); + return attr.getMaxValue(); + } + + public String getAttributeMinValue (String elementName, String attrName) + { + IIOMetadataNode node = (IIOMetadataNode) nodes.get (elementName); + IIOMetadataNodeAttrBounded attr = + (IIOMetadataNodeAttrBounded) node.getAttributeNode (attrName); + return attr.getMinValue(); + } + + public String[] getAttributeNames (String elementName) + { + IIOMetadataNode node = (IIOMetadataNode) nodes.get (elementName); + + NamedNodeMap attrNodes = node.getAttributes(); + + String[] attrNames = new String[attrNodes.getLength()]; + + for (int i = 0; i < attrNodes.getLength(); i++) + { + attrNames[i] = attrNodes.item (i).getLocalName(); + } + + return attrNames; + } + + public int getAttributeValueType (String elementName, String attrName) + { + IIOMetadataNode node = (IIOMetadataNode) nodes.get (elementName); + IIOMetadataNodeAttr attr = (IIOMetadataNodeAttr) node.getAttributeNode (attrName); + return attr.getDataType(); + } + + public String[] getChildNames (String elementName) + { + IIOMetadataNode node = (IIOMetadataNode) nodes.get (elementName); + + NodeList childNodes = node.getChildNodes(); + + String[] childNames = new String[childNodes.getLength()]; + + for (int i = 0; i < childNodes.getLength(); i++) + { + childNames[i] = childNodes.item (i).getLocalName(); + } + + return childNames; + } + + public int getChildPolicy (String elementName) + { + return ((Integer) childPolicies.get (elementName)).intValue(); + } + + private String getDescription (String resourceName, Locale locale) + { + if (resourceBaseName == null) + return null; + + Locale l = locale; + + if (l == null) + l = Locale.getDefault(); + + ResourceBundle bundle = ResourceBundle.getBundle (resourceBaseName, locale); + + String desc = null; + + if (bundle == null) + { + try + { + desc = bundle.getString (resourceName); + } + catch (MissingResourceException e) + { + desc = null; + } + } + + return desc; + } + + public String getElementDescription (String elementName, Locale locale) + { + return getDescription (elementName, locale); + } + + public int getElementMaxChildren (String elementName) + { + return ((int[]) childRanges.get (elementName))[1]; + } + + public int getElementMinChildren (String elementName) + { + return ((int[]) childRanges.get (elementName))[0]; + } + + public int getObjectArrayMaxLength (String elementName) + { + IIOMetadataNode node = (IIOMetadataNode) nodes.get (elementName); + return ((Integer) ((NodeObjectArray) getNodeObject (node)).getArrayMaxLength ()).intValue(); + } + + public int getObjectArrayMinLength (String elementName) + { + IIOMetadataNode node = (IIOMetadataNode) nodes.get (elementName); + return ((Integer) ((NodeObjectArray) getNodeObject (node)).getArrayMinLength ()).intValue(); + } + + public Class getObjectClass (String elementName) + { + IIOMetadataNode node = (IIOMetadataNode) nodes.get (elementName); + return getNodeObject (node).getClassType (); + } + + public Object getObjectDefaultValue (String elementName) + { + IIOMetadataNode node = (IIOMetadataNode) nodes.get (elementName); + return getNodeObject (node).getDefaultValue (); + } + + public Object[] getObjectEnumerations (String elementName) + { + IIOMetadataNode node = (IIOMetadataNode) nodes.get (elementName); + return ((NodeObjectEnumerated) getNodeObject (node)).getEnumerations (); + } + + public Comparable getObjectMaxValue (String elementName) + { + IIOMetadataNode node = (IIOMetadataNode) nodes.get (elementName); + return ((NodeObjectBounded) getNodeObject (node)).getMaxValue (); + } + + public Comparable getObjectMinValue (String elementName) + { + IIOMetadataNode node = (IIOMetadataNode) nodes.get (elementName); + return ((NodeObjectBounded) getNodeObject (node)).getMinValue (); + } + + public int getObjectValueType (String elementName) + { + IIOMetadataNode node = (IIOMetadataNode) nodes.get (elementName); + NodeObject n = getNodeObject (node); + + if (n == null) + return IIOMetadataFormat.VALUE_NONE; + else + return n.getValueType (); + } + + public boolean isAttributeRequired (String elementName, String attrName) + { + IIOMetadataNode node = (IIOMetadataNode) nodes.get (elementName); + return ((IIOMetadataNodeAttr) node.getAttributeNode (attrName)).isRequired(); + } } |