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Diffstat (limited to 'libjava/classpath/javax/imageio/metadata/IIOMetadataNode.java')
| -rw-r--r-- | libjava/classpath/javax/imageio/metadata/IIOMetadataNode.java | 592 |
1 files changed, 592 insertions, 0 deletions
diff --git a/libjava/classpath/javax/imageio/metadata/IIOMetadataNode.java b/libjava/classpath/javax/imageio/metadata/IIOMetadataNode.java new file mode 100644 index 0000000..d9e0983 --- /dev/null +++ b/libjava/classpath/javax/imageio/metadata/IIOMetadataNode.java @@ -0,0 +1,592 @@ +/* IIOMetadataNode.java -- + Copyright (C) 2004 Free Software Foundation, Inc. + +This file is part of GNU Classpath. + +GNU Classpath is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2, or (at your option) +any later version. + +GNU Classpath is distributed in the hope that it will be useful, but +WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +General Public License for more details. + +You should have received a copy of the GNU General Public License +along with GNU Classpath; see the file COPYING. If not, write to the +Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA +02110-1301 USA. + +Linking this library statically or dynamically with other modules is +making a combined work based on this library. Thus, the terms and +conditions of the GNU General Public License cover the whole +combination. + +As a special exception, the copyright holders of this library give you +permission to link this library with independent modules to produce an +executable, regardless of the license terms of these independent +modules, and to copy and distribute the resulting executable under +terms of your choice, provided that you also meet, for each linked +independent module, the terms and conditions of the license of that +module. An independent module is a module which is not derived from +or based on this library. If you modify this library, you may extend +this exception to your version of the library, but you are not +obligated to do so. If you do not wish to do so, delete this +exception statement from your version. */ + + +package javax.imageio.metadata; + +import java.util.ArrayList; +import java.util.HashMap; +import java.util.Iterator; +import java.util.List; + +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; + +public class IIOMetadataNode + implements Element, NodeList +{ + private String name; + private HashMap attrs = new HashMap(); + private List children = new ArrayList(); + private IIOMetadataNode parent; + private Object obj; + + public IIOMetadataNode() + { + // Do nothing here. + } + + public IIOMetadataNode(String nodename) + { + name = nodename; + } + + public Object getUserObject() + { + return obj; + } + + public void setUserObject(Object o) + { + obj = o; + } + + public short compareDocumentPosition(Node other) + throws DOMException + { + throw new Error("not implemented"); + } + + /* (non-Javadoc) + * @see org.w3c.dom.Element#getAttribute(java.lang.String) + */ + public String getAttribute(String name) + { + Attr anode = (Attr) attrs.get(name); + return anode != null ? anode.getValue() : null; + } + + /* (non-Javadoc) + * @see org.w3c.dom.Element#getAttributeNode(java.lang.String) + */ + public Attr getAttributeNode(String name) + { + String val = getAttribute(name); + if (val != null) + return new IIOAttr(name, val, this); + return null; + } + + /* (non-Javadoc) + * @see org.w3c.dom.Element#getAttributeNodeNS(java.lang.String, java.lang.String) + */ + public Attr getAttributeNodeNS(String namespaceURI, String localName) + { + return getAttributeNode(localName); + } + + /* (non-Javadoc) + * @see org.w3c.dom.Element#getAttributeNS(java.lang.String, java.lang.String) + */ + public String getAttributeNS(String namespaceURI, String localName) + { + return getAttribute(localName); + } + + public String getBaseURI() + { + throw new Error("not implemented"); + } + + // Recursive function for assembling a node list. + private void getElementsRecurse(IIONodeList list, String name) + { + for (int i=0; i < children.size(); i++) + { + if (((Node)children.get(i)).getNodeName().equals(name)) + list.children.add(children.get(i)); + getElementsRecurse(list, name); + } + } + + /* (non-Javadoc) + * @see org.w3c.dom.Element#getElementsByTagName(java.lang.String) + */ + public NodeList getElementsByTagName(String name) + { + IIONodeList list = new IIONodeList(); + getElementsRecurse(list, name); + return list; + } + + /* (non-Javadoc) + * @see org.w3c.dom.Element#getElementsByTagNameNS(java.lang.String, java.lang.String) + */ + public NodeList getElementsByTagNameNS(String namespaceURI, String localName) + { + IIONodeList list = new IIONodeList(); + getElementsRecurse(list, name); + return list; + } + + /* (non-Javadoc) + * @see org.w3c.dom.Element#getTagName() + */ + public String getTagName() + { + return name; + } + + /* (non-Javadoc) + * @see org.w3c.dom.Element#hasAttribute(java.lang.String) + */ + public boolean hasAttribute(String name) + { + return attrs.containsKey(name); + } + + /* (non-Javadoc) + * @see org.w3c.dom.Element#hasAttributeNS(java.lang.String, java.lang.String) + */ + public boolean hasAttributeNS(String namespaceURI, String localName) + { + return attrs.containsKey(localName); + } + + /* (non-Javadoc) + * @see org.w3c.dom.Element#removeAttribute(java.lang.String) + */ + public void removeAttribute(String name) + { + attrs.remove(name); + } + + /* (non-Javadoc) + * @see org.w3c.dom.Element#removeAttributeNode(org.w3c.dom.Attr) + */ + public Attr removeAttributeNode(Attr oldAttr) + { + return (Attr)attrs.remove(oldAttr.getName()); + } + + /* (non-Javadoc) + * @see org.w3c.dom.Element#removeAttributeNS(java.lang.String, java.lang.String) + */ + public void removeAttributeNS(String namespaceURI, String localName) + { + removeAttribute(localName); + } + + /* (non-Javadoc) + * @see org.w3c.dom.Element#setAttribute(java.lang.String, java.lang.String) + */ + public void setAttribute(String name, String value) + { + Attr attr = (Attr) getAttributeNode(name); + if (attr != null) + attr.setValue(value); + else + attrs.put(name, new IIOAttr(name, value, this)); + } + + /* (non-Javadoc) + * @see org.w3c.dom.Element#setAttributeNode(org.w3c.dom.Attr) + */ + public Attr setAttributeNode(Attr newAttr) + { + return (Attr)attrs.put(newAttr.getName(), newAttr); + } + + /* (non-Javadoc) + * @see org.w3c.dom.Element#setAttributeNodeNS(org.w3c.dom.Attr) + */ + public Attr setAttributeNodeNS(Attr newAttr) + { + return (Attr)attrs.put(newAttr.getName(), newAttr); + } + + /* (non-Javadoc) + * @see org.w3c.dom.Element#setAttributeNS(java.lang.String, java.lang.String, java.lang.String) + */ + public void setAttributeNS(String namespaceURI, String qualifiedName, String value) + { + setAttribute(qualifiedName, value); + } + + /* (non-Javadoc) + * @see org.w3c.dom.NodeList#getLength() + */ + public int getLength() + { + return children.size(); + } + + /* (non-Javadoc) + * @see org.w3c.dom.NodeList#item(int) + */ + public Node item(int index) + { + if (index < children.size()) + return (Node)children.get(index); + else + return null; + } + + /* (non-Javadoc) + * @see org.w3c.dom.Node#appendChild(org.w3c.dom.Node) + */ + public Node appendChild(Node newChild) + { + if (newChild == null) + throw new IllegalArgumentException("Child node is null"); + + IIOMetadataNode child = (IIOMetadataNode) newChild; + + children.add(child); + child.parent = this; + return this; + } + + /* (non-Javadoc) + * @see org.w3c.dom.Node#cloneNode(boolean) + */ + public Node cloneNode(boolean deep) + { + IIOMetadataNode newnode = new IIOMetadataNode(name); + newnode.parent = null; + newnode.obj = obj; + if (deep) + { + for (int i=0; i < children.size(); i++) + newnode.children.add(((Node)children.get(i)).cloneNode(deep)); + } + + // clone attrs + for (Iterator it = attrs.values().iterator(); it.hasNext();) + { + IIOAttr attr = (IIOAttr)it.next(); + newnode.attrs.put(attr.name, attr.cloneNode(deep)); + attr.owner = newnode; + } + + return newnode; + } + + /* (non-Javadoc) + * @see org.w3c.dom.Node#getAttributes() + */ + public NamedNodeMap getAttributes() + { + return new IIONamedNodeMap(attrs); + } + + /* (non-Javadoc) + * @see org.w3c.dom.Node#getChildNodes() + */ + public NodeList getChildNodes() + { + return this; + } + + public Object getFeature(String feature, String version) + { + throw new Error("not implemented"); + } + + /* (non-Javadoc) + * @see org.w3c.dom.Node#getFirstChild() + */ + public Node getFirstChild() + { + return (children.size() > 0) ? (Node)children.get(0) : null; + } + + /* (non-Javadoc) + * @see org.w3c.dom.Node#getLastChild() + */ + public Node getLastChild() + { + return (children.size() > 0) ? (Node)children.get(children.size() - 1) + : null; + } + + /* (non-Javadoc) + * @see org.w3c.dom.Node#getLocalName() + */ + public String getLocalName() + { + return name; + } + + /* (non-Javadoc) + * @see org.w3c.dom.Node#getNamespaceURI() + */ + public String getNamespaceURI() + { + return null; + } + + /* (non-Javadoc) + * @see org.w3c.dom.Node#getNextSibling() + */ + public Node getNextSibling() + { + // If this op needs to be faster, add links to prev and next nodes. + if (parent == null) return null; + int idx = parent.children.indexOf(this); + return (idx == parent.children.size() - 1) ? null + : (Node)parent.children.get(idx + 1); + } + + /* (non-Javadoc) + * @see org.w3c.dom.Node#getNodeName() + */ + public String getNodeName() + { + return name; + } + + /* (non-Javadoc) + * @see org.w3c.dom.Node#getNodeType() + */ + public short getNodeType() + { + return ELEMENT_NODE; + } + + /* (non-Javadoc) + * @see org.w3c.dom.Node#getNodeValue() + */ + public String getNodeValue() + { + return null; + } + + /* (non-Javadoc) + * @see org.w3c.dom.Node#getOwnerDocument() + */ + public Document getOwnerDocument() + { + // IOMetadataNodes have no owner + return null; + } + + /* (non-Javadoc) + * @see org.w3c.dom.Node#getParentNode() + */ + public Node getParentNode() + { + return parent; + } + + /* (non-Javadoc) + * @see org.w3c.dom.Node#getPrefix() + */ + public String getPrefix() + { + return null; + } + + /* (non-Javadoc) + * @see org.w3c.dom.Node#getPreviousSibling() + */ + public Node getPreviousSibling() + { + // If this op needs to be faster, add links to prev and next nodes. + if (parent == null) return null; + int idx = parent.children.indexOf(this); + return (idx == 0) ? null + : (Node)parent.children.get(idx - 1); + } + + public TypeInfo getSchemaTypeInfo() + { + throw new Error("not implemented"); + } + + public String getTextContent() + throws DOMException + { + throw new Error("not implemented"); + } + + public Object getUserData(String key) + { + throw new Error("not implemented"); + } + + /* (non-Javadoc) + * @see org.w3c.dom.Node#hasAttributes() + */ + public boolean hasAttributes() + { + return !attrs.isEmpty(); + } + + /* (non-Javadoc) + * @see org.w3c.dom.Node#hasChildNodes() + */ + public boolean hasChildNodes() + { + return !children.isEmpty(); + } + + /* (non-Javadoc) + * @see org.w3c.dom.Node#insertBefore(org.w3c.dom.Node, org.w3c.dom.Node) + */ + public Node insertBefore(Node newChild, Node refChild) + { + if (newChild == null) + throw new IllegalArgumentException(); + + int idx = children.indexOf(refChild); + if (idx == -1) + children.add(newChild); + else + children.add(idx, newChild); + ((IIOMetadataNode)newChild).parent = this; + + return newChild; + } + + public boolean isDefaultNamespace(String namespaceURI) + { + throw new Error("not implemented"); + } + + public boolean isEqualNode(Node arg) + { + throw new Error("not implemented"); + } + + public boolean isSameNode(Node other) + { + return this == other; + } + + /* (non-Javadoc) + * @see org.w3c.dom.Node#isSupported(java.lang.String, java.lang.String) + */ + public boolean isSupported(String feature, String version) + { + // No DOM features are supported + return false; + } + + public String lookupNamespaceURI(String prefix) + { + throw new Error("not implemented"); + } + + public String lookupPrefix(String namespaceURI) + { + throw new Error("not implemented"); + } + + /* (non-Javadoc) + * @see org.w3c.dom.Node#normalize() + */ + public void normalize() + { + // No text nodes so no action + } + + /* (non-Javadoc) + * @see org.w3c.dom.Node#removeChild(org.w3c.dom.Node) + */ + public Node removeChild(Node oldChild) + { + if (oldChild == null) + throw new IllegalArgumentException(); + children.remove(oldChild); + ((IIOMetadataNode)oldChild).parent = null; + + return oldChild; + } + + /* (non-Javadoc) + * @see org.w3c.dom.Node#replaceChild(org.w3c.dom.Node, org.w3c.dom.Node) + */ + public Node replaceChild(Node newChild, Node oldChild) + { + if (newChild == null) + throw new IllegalArgumentException(); + children.set(children.indexOf(oldChild), newChild); + ((IIOMetadataNode)oldChild).parent = null; + return oldChild; + } + + public void setIdAttribute(String name, boolean isId) + throws DOMException + { + throw new Error("not implemented"); + } + + public void setIdAttributeNode(Attr idAttr, boolean isId) + throws DOMException + { + throw new Error("not implemented"); + } + + public void setIdAttributeNS(String namespaceURI, String localName, boolean isId) + throws DOMException + { + throw new Error("not implemented"); + } + + /* (non-Javadoc) + * @see org.w3c.dom.Node#setNodeValue(java.lang.String) + */ + public void setNodeValue(String nodeValue) throws DOMException + { + } + + /* (non-Javadoc) + * @see org.w3c.dom.Node#setPrefix(java.lang.String) + */ + public void setPrefix(String prefix) + { + } + + public void setTextContent(String textContent) + throws DOMException + { + throw new Error("not implemented"); + } + + public Object setUserData(String key, Object data, UserDataHandler handler) + { + throw new Error("not implemented"); + } +} |