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+/* QName.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., 59 Temple Place, Suite 330, Boston, MA
+02111-1307 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.xml.namespace;
+
+import javax.xml.XMLConstants;
+
+/**
+ * An XML
+ * <a href='http://www.w3.org/TR/REC-xml-names/#ns-qualnames'>qualified name</a>.
+ *
+ * @author <a href='mailto:dog@gnu.org'>Chris Burdess</a>
+ * @since 1.3
+ */
+public class QName
+{
+
+ private final String namespaceURI;
+ private final String localPart;
+ private final String prefix;
+ private final String qName;
+
+ public QName(String namespaceURI, String localPart)
+ {
+ this(namespaceURI, localPart, null);
+ }
+
+ public QName(String namespaceURI, String localPart, String prefix)
+ {
+ if (namespaceURI == null)
+ {
+ namespaceURI = XMLConstants.NULL_NS_URI;
+ }
+ if (localPart == null)
+ {
+ throw new IllegalArgumentException();
+ }
+ if (prefix == null)
+ {
+ prefix = XMLConstants.DEFAULT_NS_PREFIX;
+ }
+ this.namespaceURI = namespaceURI;
+ this.localPart = localPart;
+ this.prefix = prefix;
+
+ StringBuffer buf = new StringBuffer();
+ if (namespaceURI != null && namespaceURI.length() > 0)
+ {
+ buf.append('{');
+ buf.append(namespaceURI);
+ buf.append('}');
+ }
+ if (prefix != null && prefix.length() > 0)
+ {
+ buf.append(prefix);
+ buf.append(':');
+ }
+ buf.append(localPart);
+ qName = buf.toString();
+ }
+
+ public QName(String localPart)
+ {
+ this(null, localPart, null);
+ }
+
+ public String getNamespaceURI()
+ {
+ return namespaceURI;
+ }
+
+ public String getLocalPart()
+ {
+ return localPart;
+ }
+
+ public String getPrefix()
+ {
+ return prefix;
+ }
+
+ public boolean equals(Object obj)
+ {
+ if (obj instanceof QName)
+ {
+ QName qname = (QName) obj;
+ return qname.getLocalPart().equals(localPart) &&
+ qname.getNamespaceURI().equals(namespaceURI);
+ }
+ return false;
+ }
+
+ public final int hashCode()
+ {
+ return qName.hashCode();
+ }
+
+ public String toString()
+ {
+ return qName;
+ }
+
+ public static QName valueOf(String qNameAsString)
+ {
+ String namespaceUri = "", prefix = null;
+ int start = qNameAsString.indexOf('{');
+ int end = qNameAsString.indexOf('}');
+ if (start != -1)
+ {
+ if (end < start)
+ {
+ throw new IllegalArgumentException(qNameAsString);
+ }
+ namespaceUri = qNameAsString.substring(start + 1, end);
+ qNameAsString = qNameAsString.substring(end + 1);
+ }
+ start = qNameAsString.indexOf(':');
+ if (start != -1)
+ {
+ prefix = qNameAsString.substring(0, start);
+ qNameAsString = qNameAsString.substring(start + 1);
+ }
+ return new QName(namespaceUri, qNameAsString, prefix);
+ }
+
+}