/* * Copyright (c) 1999, 2000, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. Oracle designates this * particular file as subject to the "Classpath" exception as provided * by Oracle in the LICENSE file that accompanied this code. * * This code 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 * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. *//** * Given an enumeration of candidates, check whether each * item in enumeration satifies the given filter. * Each item is a Binding and the following is used to get its * attributes for used by the filter: * * ((DirContext)item.getObject()).getAttributes(""). * If item.getObject() is not an DirContext, the item is skipped * * The items in the enumeration are obtained one at a time as * items from the search enumeration are requested. * * @author Rosanna Lee */package com.sun.jndi.toolkit.dir;import javax.naming.*;import javax.naming.directory.*;import javax.naming.spi.DirectoryManager;import java.util.NoSuchElementException;import java.util.Hashtable;final public class LazySearchEnumerationImpl implements NamingEnumeration { private NamingEnumeration candidates; private SearchResult nextMatch = null; private SearchControls cons; private AttrFilter filter; private Context context; private Hashtable env; private boolean useFactory = true; public LazySearchEnumerationImpl(NamingEnumeration candidates, AttrFilter filter, SearchControls cons) throws NamingException { this.candidates = candidates; this.filter = filter; if(cons == null) { this.cons = new SearchControls(); } else { this.cons = cons; } } public LazySearchEnumerationImpl(NamingEnumeration candidates, AttrFilter filter, SearchControls cons, Context ctx, Hashtable env, boolean useFactory) throws NamingException { this.candidates = candidates; this.filter = filter; this.env = env; this.context = ctx; this.useFactory = useFactory; if(cons == null) { this.cons = new SearchControls(); } else { this.cons = cons; } } public LazySearchEnumerationImpl(NamingEnumeration candidates, AttrFilter filter, SearchControls cons, Context ctx, Hashtable env) throws NamingException { this(candidates, filter, cons, ctx, env, true); } public boolean hasMore() throws NamingException { // find and do not remove from list return findNextMatch(false) != null; } public boolean hasMoreElements() { try { return hasMore(); } catch (NamingException e) { return false; } } public Object nextElement() { try { return findNextMatch(true); } catch (NamingException e) { throw new NoSuchElementException(e.toString()); } } public Object next() throws NamingException { // find and remove from list return (findNextMatch(true)); } public void close() throws NamingException { if (candidates != null) { candidates.close(); } } private SearchResult findNextMatch(boolean remove) throws NamingException { SearchResult answer; if (nextMatch != null) { answer = nextMatch; if (remove) { nextMatch = null; } return answer; } else { // need to find next match Binding next; Object obj; Attributes targetAttrs; while (candidates.hasMore()) { next = (Binding)candidates.next(); obj = next.getObject(); if (obj instanceof DirContext) { targetAttrs = ((DirContext)(obj)).getAttributes(""); if (filter.check(targetAttrs)) { if (!cons.getReturningObjFlag()) { obj = null; } else if (useFactory) { try { // Give name only if context non-null, // otherewise, name will be interpreted relative // to initial context (not what we want) Name nm = (context != null ? new CompositeName(next.getName()) : null); obj = DirectoryManager.getObjectInstance(obj, nm, context, env, targetAttrs); } catch (NamingException e) { throw e; } catch (Exception e) { NamingException e2 = new NamingException( "problem generating object using object factory"); e2.setRootCause(e); throw e2; } } answer = new SearchResult(next.getName(), next.getClassName(), obj, SearchFilter.selectAttributes(targetAttrs, cons.getReturningAttributes()), true); if (!remove) nextMatch = answer; return answer; } } } return null; } }}
/*
* Copyright (c) 1999, 2000, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code 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
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/**
* Given an enumeration of candidates, check whether each
* item in enumeration satifies the given filter.
* Each item is a Binding and the following is used to get its
* attributes for used by the filter:
*
* ((DirContext)item.getObject()).getAttributes("").
* If item.getObject() is not an DirContext, the item is skipped
*
* The items in the enumeration are obtained one at a time as
* items from the search enumeration are requested.
*
* @author Rosanna Lee
*/
package com.sun.jndi.toolkit.dir;
import javax.naming.*;
import javax.naming.directory.*;
import javax.naming.spi.DirectoryManager;
import java.util.NoSuchElementException;
import java.util.Hashtable;
final public class LazySearchEnumerationImpl implements NamingEnumeration {
private NamingEnumeration candidates;
private SearchResult nextMatch = null;
private SearchControls cons;
private AttrFilter filter;
private Context context;
private Hashtable env;
private boolean useFactory = true;
public LazySearchEnumerationImpl(NamingEnumeration candidates,
AttrFilter filter, SearchControls cons) throws NamingException {
this.candidates = candidates;
this.filter = filter;
if(cons == null) {
this.cons = new SearchControls();
} else {
this.cons = cons;
}
}
public LazySearchEnumerationImpl(NamingEnumeration candidates,
AttrFilter filter, SearchControls cons,
Context ctx, Hashtable env, boolean useFactory) throws NamingException {
this.candidates = candidates;
this.filter = filter;
this.env = env;
this.context = ctx;
this.useFactory = useFactory;
if(cons == null) {
this.cons = new SearchControls();
} else {
this.cons = cons;
}
}
public LazySearchEnumerationImpl(NamingEnumeration candidates,
AttrFilter filter, SearchControls cons,
Context ctx, Hashtable env) throws NamingException {
this(candidates, filter, cons, ctx, env, true);
}
public boolean hasMore() throws NamingException {
// find and do not remove from list
return findNextMatch(false) != null;
}
public boolean hasMoreElements() {
try {
return hasMore();
} catch (NamingException e) {
return false;
}
}
public Object nextElement() {
try {
return findNextMatch(true);
} catch (NamingException e) {
throw new NoSuchElementException(e.toString());
}
}
public Object next() throws NamingException {
// find and remove from list
return (findNextMatch(true));
}
public void close() throws NamingException {
if (candidates != null) {
candidates.close();
}
}
private SearchResult findNextMatch(boolean remove) throws NamingException {
SearchResult answer;
if (nextMatch != null) {
answer = nextMatch;
if (remove) {
nextMatch = null;
}
return answer;
} else {
// need to find next match
Binding next;
Object obj;
Attributes targetAttrs;
while (candidates.hasMore()) {
next = (Binding)candidates.next();
obj = next.getObject();
if (obj instanceof DirContext) {
targetAttrs = ((DirContext)(obj)).getAttributes("");
if (filter.check(targetAttrs)) {
if (!cons.getReturningObjFlag()) {
obj = null;
} else if (useFactory) {
try {
// Give name only if context non-null,
// otherewise, name will be interpreted relative
// to initial context (not what we want)
Name nm = (context != null ?
new CompositeName(next.getName()) : null);
obj = DirectoryManager.getObjectInstance(obj,
nm, context, env, targetAttrs);
} catch (NamingException e) {
throw e;
} catch (Exception e) {
NamingException e2 = new NamingException(
"problem generating object using object factory");
e2.setRootCause(e);
throw e2;
}
}
answer = new SearchResult(next.getName(),
next.getClassName(), obj,
SearchFilter.selectAttributes(targetAttrs,
cons.getReturningAttributes()),
true);
if (!remove)
nextMatch = answer;
return answer;
}
}
}
return null;
}
}
}