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Diffstat (limited to 'libjava/classpath/javax/naming/directory/BasicAttributes.java')
| -rw-r--r-- | libjava/classpath/javax/naming/directory/BasicAttributes.java | 238 |
1 files changed, 238 insertions, 0 deletions
diff --git a/libjava/classpath/javax/naming/directory/BasicAttributes.java b/libjava/classpath/javax/naming/directory/BasicAttributes.java new file mode 100644 index 00000000000..37ec195771e --- /dev/null +++ b/libjava/classpath/javax/naming/directory/BasicAttributes.java @@ -0,0 +1,238 @@ +/* BasicAttributes.java -- + Copyright (C) 2000, 2001, 2004, 2005 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.naming.directory; + +import java.util.NoSuchElementException; +import java.util.Vector; + +import javax.naming.NamingEnumeration; +import javax.naming.NamingException; + +/** + * @author Tom Tromey (tromey@redhat.com) + * @date June 22, 2001 + */ +public class BasicAttributes implements Attributes +{ + private static final long serialVersionUID = 4980164073184639448L; + + public BasicAttributes () + { + this (false); + } + + public BasicAttributes (boolean ignoreCase) + { + this.ignoreCase = ignoreCase; + this.attributes = new Vector (); + } + + public BasicAttributes (String attrID, Object val) + { + this (attrID, val, false); + } + + public BasicAttributes (String attrID, Object val, boolean ignoreCase) + { + this.ignoreCase = ignoreCase; + attributes = new Vector (); + attributes.add (new BasicAttribute (attrID, val)); + } + + public Object clone () + { + // Slightly inefficient as we make a garbage Vector here. + BasicAttributes ba = new BasicAttributes (ignoreCase); + ba.attributes = (Vector) attributes.clone (); + return ba; + } + + /** + * Returns true if and only if the given Object is an instance of + * Attributes, the given attributes both do or don't ignore case for + * IDs and the collection of attributes is the same. + */ + public boolean equals (Object obj) + { + if (! (obj instanceof Attributes)) + return false; + + Attributes bs = (Attributes) obj; + if (ignoreCase != bs.isCaseIgnored() + || attributes.size () != bs.size ()) + return false; + + NamingEnumeration bas = bs.getAll(); + while (bas.hasMoreElements()) + { + Attribute a = (Attribute) bas.nextElement(); + Attribute b = get(a.getID ()); + if (! a.equals(b)) + return false; + } + + return true; + } + + public Attribute get (String attrID) + { + for (int i = 0; i < attributes.size (); ++i) + { + Attribute at = (Attribute) attributes.get (i); + if ((ignoreCase && attrID.equalsIgnoreCase (at.getID ())) + || (! ignoreCase && attrID.equals (at.getID ()))) + return at; + } + + return null; + } + + public NamingEnumeration getAll () + { + return new BasicAttributesEnumeration (false); + } + + public NamingEnumeration getIDs () + { + return new BasicAttributesEnumeration (true); + } + + public int hashCode () + { + int val = 0; + for (int i = 0; i < attributes.size (); ++i) + val += attributes.get (i).hashCode (); + return val; + } + + public boolean isCaseIgnored () + { + return ignoreCase; + } + + public Attribute put (Attribute attr) + { + Attribute r = remove (attr.getID ()); + attributes.add (attr); + return r; + } + + public Attribute put (String attrID, Object val) + { + return put (new BasicAttribute (attrID, val)); + } + + public Attribute remove (String attrID) + { + for (int i = 0; i < attributes.size (); ++i) + { + Attribute at = (Attribute) attributes.get (i); + if ((ignoreCase && attrID.equalsIgnoreCase (at.getID ())) + || (! ignoreCase && attrID.equals (at.getID ()))) + { + attributes.remove (i); + return at; + } + } + + return null; + } + + public int size () + { + return attributes.size (); + } + + public String toString () + { + String r = ""; + for (int i = 0; i < attributes.size (); ++i) + { + if (i > 0) + r += "; "; + r += attributes.get (i).toString (); + } + return r; + } + + // This is set by the serialization spec. + private boolean ignoreCase; + // Package-private to avoid a trampoline. + transient Vector attributes; + + // Used when enumerating. + private class BasicAttributesEnumeration implements NamingEnumeration + { + int where = 0; + boolean id; + + public BasicAttributesEnumeration (boolean id) + { + this.id = id; + } + + public void close () throws NamingException + { + } + + public boolean hasMore () throws NamingException + { + return hasMoreElements (); + } + + public Object next () throws NamingException + { + return nextElement (); + } + + public boolean hasMoreElements () + { + return where < attributes.size (); + } + + public Object nextElement () throws NoSuchElementException + { + if (where >= attributes.size ()) + throw new NoSuchElementException ("no more elements"); + Attribute at = (Attribute) attributes.get (where); + ++where; + return id ? (Object) at.getID () : (Object) at; + } + } +} |