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Diffstat (limited to 'libjava/javax/naming/CompositeName.java')
| -rw-r--r-- | libjava/javax/naming/CompositeName.java | 289 |
1 files changed, 289 insertions, 0 deletions
diff --git a/libjava/javax/naming/CompositeName.java b/libjava/javax/naming/CompositeName.java new file mode 100644 index 0000000..afc85d5 --- /dev/null +++ b/libjava/javax/naming/CompositeName.java @@ -0,0 +1,289 @@ +/* Copyright (C) 2001 Free Software Foundation + + This file is part of libgcj. + +This software is copyrighted work licensed under the terms of the +Libgcj License. Please consult the file "LIBGCJ_LICENSE" for +details. */ + +package javax.naming; + +import java.io.Serializable; +import java.util.Enumeration; +import java.util.NoSuchElementException; +import java.util.Vector; + +/** + * @author Tom Tromey <tromey@redhat.com> + * @date May 16, 2001 + * + * FIXME: must write readObject and writeObject to conform to + * serialization spec. + */ +public class CompositeName implements Name, Cloneable, Serializable +{ + public CompositeName () + { + elts = new Vector (); + } + + protected CompositeName (Enumeration comps) + { + elts = new Vector (); + try + { + while (comps.hasMoreElements ()) + elts.add (comps.nextElement ()); + } + catch (NoSuchElementException ignore) + { + } + } + + public CompositeName (String n) throws InvalidNameException + { + elts = new Vector (); + // Parse the string into its components. + final char no_quote = 'x'; // Use 'x' to mean no quoting. + char quote = no_quote; + boolean escaped = false; + StringBuffer new_element = new StringBuffer (); + for (int i = 0; i < n.length (); ++i) + { + char c = n.charAt (i); + if (escaped) + escaped = false; + else if (c == '\\') + { + escaped = true; + continue; + } + else if (quote != no_quote) + { + if (quote == c) + { + // The quotes must surround a complete component. + if (i + 1 < n.length () && n.charAt (i + 1) != '/') + throw new InvalidNameException ("close quote before end of component"); + elts.add (new_element.toString ()); + new_element.setLength (0); + quote = no_quote; + continue; + } + // Otherwise, fall through. + } + // Quotes are only special at the start of a component. + else if (new_element.length () == 0 + && (c == '\'' || c == '"')) + { + quote = c; + continue; + } + else if (c == '/') + { + elts.add (new_element.toString ()); + new_element.setLength (0); + continue; + } + + new_element.append (c); + } + + if (new_element.length () != 0) + elts.add (new_element.toString ()); + + // Error checking. + if (quote != no_quote) + throw new InvalidNameException ("unterminated quote"); + if (escaped) + throw new InvalidNameException ("trailing escape character"); + } + + public Name add (int posn, String comp) throws InvalidNameException + { + elts.add (posn, comp); + return this; + } + + public Name add (String comp) throws InvalidNameException + { + elts.add (comp); + return this; + } + + public Name addAll (int posn, Name n) throws InvalidNameException + { + Enumeration e = n.getAll (); + try + { + while (e.hasMoreElements ()) + { + elts.add (posn, e.nextElement ()); + ++posn; + } + } + catch (NoSuchElementException ignore) + { + } + return this; + } + + public Name addAll (Name suffix) throws InvalidNameException + { + Enumeration e = suffix.getAll (); + try + { + while (e.hasMoreElements ()) + elts.add (e.nextElement ()); + } + catch (NoSuchElementException ignore) + { + } + return this; + } + + public Object clone () + { + return new CompositeName (elts.elements ()); + } + + public int compareTo (Object obj) + { + if (obj == null || ! (obj instanceof CompositeName)) + throw new ClassCastException ("CompositeName.compareTo() expected CompositeName"); + CompositeName cn = (CompositeName) obj; + int last = Math.min (cn.elts.size (), elts.size ()); + for (int i = 0; i < last; ++i) + { + String f = (String) elts.get (i); + int comp = f.compareTo ((String) cn.elts.get (i)); + if (comp != 0) + return comp; + } + return elts.size () - cn.elts.size (); + } + + public boolean endsWith (Name n) + { + if (! (n instanceof CompositeName)) + return false; + CompositeName cn = (CompositeName) n; + if (cn.elts.size () > elts.size ()) + return false; + int delta = elts.size () - cn.elts.size (); + for (int i = 0; i < cn.elts.size (); ++i) + { + if (! cn.elts.get (i).equals (elts.get (delta + i))) + return false; + } + return true; + } + + public boolean equals (Object obj) + { + if (! (obj instanceof CompositeName)) + return false; + CompositeName cn = (CompositeName) obj; + return elts.equals (cn.elts); + } + + public String get (int posn) + { + return (String) elts.get (posn); + } + + public Enumeration getAll () + { + return elts.elements (); + } + + public Name getPrefix (int posn) + { + CompositeName cn = new CompositeName (); + for (int i = 0; i < posn; ++i) + cn.elts.add ((String) elts.get (i)); + return cn; + } + + public Name getSuffix (int posn) + { + if (posn > elts.size ()) + throw new ArrayIndexOutOfBoundsException (posn); + CompositeName cn = new CompositeName (); + for (int i = posn; i < elts.size (); ++i) + cn.elts.add ((String) elts.get (i)); + return cn; + } + + public int hashCode () + { + // Specified in documentation. + int h = 0; + for (int i = 0; i < elts.size (); ++i) + h += elts.get (i).hashCode (); + return h; + } + + public boolean isEmpty () + { + return elts.isEmpty (); + } + + public Object remove (int posn) throws InvalidNameException + { + return elts.remove (posn); + } + + public int size () + { + return elts.size (); + } + + public boolean startsWith (Name n) + { + if (! (n instanceof CompositeName)) + return false; + CompositeName cn = (CompositeName) n; + if (cn.elts.size () > elts.size ()) + return false; + for (int i = 0; i < cn.elts.size (); ++i) + { + if (! cn.elts.get (i).equals (elts.get (i))) + return false; + } + return true; + } + + public String toString () + { + StringBuffer result = new StringBuffer (); + for (int i = 0; i < elts.size (); ++i) + { + // For simplicity we choose to always quote using escapes and + // never quotes. + String elt = (String) elts.get (i); + if (i > 0 + || (i == elts.size () - 1 && elt.equals (""))) + result.append ('/'); + for (int k = 0; k < elt.length (); ++k) + { + char c = elt.charAt (k); + // We must quote + // ... a leading quote, + if ((k == 0 && (c == '"' || c == '\'')) + // ... an escape preceding a meta character, + // or at the end of a component, + || (c == '\\' + && (k == elt.length () - 1 + || "\\'\"/".indexOf (elt.charAt (k + 1)) != -1)) + // ... or a component separator. + || c == '/') + result.append ('\\'); + result.append (c); + } + } + return result.toString (); + } + + private transient Vector elts; +} |