Java by API/javax.naming/DirContext
Содержание
DirContext.ADD_ATTRIBUTE
<source lang="java">
import java.util.Hashtable; import javax.naming.Context; import javax.naming.directory.BasicAttribute; import javax.naming.directory.DirContext; import javax.naming.directory.InitialDirContext; import javax.naming.directory.ModificationItem; public class Main {
public static void main(String[] argv) throws Exception { ModificationItem[] mods = new ModificationItem[3]; mods[0] = new ModificationItem(DirContext.REPLACE_ATTRIBUTE, new BasicAttribute("mail","g@w.ru")); mods[1] = new ModificationItem(DirContext.ADD_ATTRIBUTE, new BasicAttribute("number","5555")); mods[2] = new ModificationItem(DirContext.REMOVE_ATTRIBUTE, new BasicAttribute("jpeg")); String url = "ldap://localhost/o=JNDITutorial"; Hashtable<String, String> env = new Hashtable<String, String>(); env.put(Context.INITIAL_CONTEXT_FACTORY, "com.sun.jndi.ldap.LdapCtxFactory"); env.put(Context.PROVIDER_URL, url); DirContext ctx = new InitialDirContext(env); ctx.modifyAttributes("cn=Name, ou=People", mods); }
}
</source>
DirContext: getAttributes(String name)
<source lang="java">
/*
* Copyright (c) 1995 - 2008 Sun Microsystems, Inc. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * - Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * - Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * - Neither the name of Sun Microsystems nor the names of its * contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */
import java.util.Hashtable; import javax.naming.Context; import javax.naming.NamingException; import javax.naming.directory.DirContext; import javax.naming.directory.InitialDirContext; /**
* Demonstrates how to enable connection pooling. Use debug option to observe * connection usage. * * usage: java -Dcom.sun.jndi.ldap.connect.pool.debug=fine UsePool */
class UsePool {
public static void main(String[] args) { // Set up environment for creating initial context Hashtable<String, Object> env = new Hashtable<String, Object>(11); env .put(Context.INITIAL_CONTEXT_FACTORY, "com.sun.jndi.ldap.LdapCtxFactory"); env.put(Context.PROVIDER_URL, "ldap://localhost:389/o=JNDITutorial"); // Enable connection pooling env.put("com.sun.jndi.ldap.connect.pool", "true"); try { // Create one initial context (Get connection from pool) DirContext ctx = new InitialDirContext(env); System.out.println(ctx.getAttributes("ou=NewHires")); // do something useful with ctx // Close the context when we"re done ctx.close(); // Return connection to pool // Create another initial context (Get connection from pool) DirContext ctx2 = new InitialDirContext(env); System.out.println(ctx2.getAttributes("ou=People")); // do something useful with ctx2 // Close the context when we"re done ctx2.close(); // Return connection to pool } catch (NamingException e) { e.printStackTrace(); } }
}
</source>
DirContext: getAttributes(String name, String[] attrIds)
<source lang="java">
import java.util.Enumeration; import java.util.Hashtable; import javax.naming.Context; import javax.naming.NamingEnumeration; import javax.naming.directory.Attribute; import javax.naming.directory.Attributes; import javax.naming.directory.DirContext; import javax.naming.directory.InitialDirContext; import javax.naming.directory.SearchControls; import javax.naming.directory.SearchResult; public class Main {
public static String INITCTX = "com.sun.jndi.ldap.LdapCtxFactory"; public static String MY_HOST = "ldap://localhost:1389"; public static String MY_SEARCHBASE = "o=server.ru"; public static String MY_FILTER = "(sn=Carter)"; public static String MY_ATTRS[] = { "cn", "mail" }; public static void main(String args[]) throws Exception { Hashtable env = new Hashtable(); env.put(Context.INITIAL_CONTEXT_FACTORY, INITCTX); env.put(Context.PROVIDER_URL, MY_HOST); DirContext ctx = new InitialDirContext(env); SearchControls constraints = new SearchControls(); constraints.setSearchScope(SearchControls.SUBTREE_SCOPE); NamingEnumeration results = ctx.search(MY_SEARCHBASE, MY_FILTER, constraints); while (results != null && results.hasMore()) { SearchResult sr = (SearchResult) results.next(); String dn = sr.getName() + ", " + MY_SEARCHBASE; System.out.println("Distinguished Name is " + dn); Attributes ar = ctx.getAttributes(dn, MY_ATTRS); if (ar == null) { System.out.println("Entry " + dn + " has none of the specified attributes\n"); return; } for (int i = 0; i < MY_ATTRS.length; i++) { Attribute attr = ar.get(MY_ATTRS[i]); if (attr == null) { continue; } System.out.println(MY_ATTRS[i] + ":"); for (Enumeration vals = attr.getAll(); vals.hasMoreElements();) { System.out.println("\t" + vals.nextElement()); } } } }
}
</source>
DirContext.REMOVE_ATTRIBUTE
<source lang="java">
import java.util.Hashtable; import javax.naming.Context; import javax.naming.directory.BasicAttribute; import javax.naming.directory.DirContext; import javax.naming.directory.InitialDirContext; import javax.naming.directory.ModificationItem; public class Main {
public static void main(String[] argv) throws Exception { ModificationItem[] mods = new ModificationItem[3]; mods[0] = new ModificationItem(DirContext.REPLACE_ATTRIBUTE, new BasicAttribute("mail","g@w.ru")); mods[1] = new ModificationItem(DirContext.ADD_ATTRIBUTE, new BasicAttribute("number","5555")); mods[2] = new ModificationItem(DirContext.REMOVE_ATTRIBUTE, new BasicAttribute("jpeg")); String url = "ldap://localhost/o=JNDITutorial"; Hashtable<String, String> env = new Hashtable<String, String>(); env.put(Context.INITIAL_CONTEXT_FACTORY, "com.sun.jndi.ldap.LdapCtxFactory"); env.put(Context.PROVIDER_URL, url); DirContext ctx = new InitialDirContext(env); ctx.modifyAttributes("cn=Name, ou=People", mods); }
}
</source>
DirContext.REPLACE_ATTRIBUTE
<source lang="java">
import java.util.Hashtable; import javax.naming.Context; import javax.naming.directory.BasicAttribute; import javax.naming.directory.DirContext; import javax.naming.directory.InitialDirContext; import javax.naming.directory.ModificationItem; public class Main {
public static void main(String[] argv) throws Exception { ModificationItem[] mods = new ModificationItem[3]; mods[0] = new ModificationItem(DirContext.REPLACE_ATTRIBUTE, new BasicAttribute("mail","g@w.ru")); mods[1] = new ModificationItem(DirContext.ADD_ATTRIBUTE, new BasicAttribute("number","5555")); mods[2] = new ModificationItem(DirContext.REMOVE_ATTRIBUTE, new BasicAttribute("jpeg")); String url = "ldap://localhost/o=JNDITutorial"; Hashtable<String, String> env = new Hashtable<String, String>(); env.put(Context.INITIAL_CONTEXT_FACTORY, "com.sun.jndi.ldap.LdapCtxFactory"); env.put(Context.PROVIDER_URL, url); DirContext ctx = new InitialDirContext(env); ctx.modifyAttributes("cn=Name, ou=People", mods); }
}
</source>
DirContext: search(String name, String filter, SearchControls cons)
<source lang="java">
import java.util.Enumeration; import java.util.Hashtable; import javax.naming.Context; import javax.naming.NamingEnumeration; import javax.naming.directory.Attribute; import javax.naming.directory.Attributes; import javax.naming.directory.DirContext; import javax.naming.directory.InitialDirContext; import javax.naming.directory.SearchControls; import javax.naming.directory.SearchResult; public class Main {
public static String INITCTX = "com.sun.jndi.ldap.LdapCtxFactory"; public static String MY_HOST = "ldap://localhost:1389"; public static String MY_SEARCHBASE = "o=server.ru"; public static String MY_FILTER = "(sn=Carter)"; public static String MY_ATTRS[] = { "cn", "mail" }; public static void main(String args[]) throws Exception { Hashtable env = new Hashtable(); env.put(Context.INITIAL_CONTEXT_FACTORY, INITCTX); env.put(Context.PROVIDER_URL, MY_HOST); DirContext ctx = new InitialDirContext(env); SearchControls constraints = new SearchControls(); constraints.setSearchScope(SearchControls.SUBTREE_SCOPE); NamingEnumeration results = ctx.search(MY_SEARCHBASE, MY_FILTER, constraints); while (results != null && results.hasMore()) { SearchResult sr = (SearchResult) results.next(); String dn = sr.getName() + ", " + MY_SEARCHBASE; System.out.println("Distinguished Name is " + dn); Attributes ar = ctx.getAttributes(dn, MY_ATTRS); if (ar == null) { System.out.println("Entry " + dn + " has none of the specified attributes\n"); return; } for (int i = 0; i < MY_ATTRS.length; i++) { Attribute attr = ar.get(MY_ATTRS[i]); if (attr == null) { continue; } System.out.println(MY_ATTRS[i] + ":"); for (Enumeration vals = attr.getAll(); vals.hasMoreElements();) { System.out.println("\t" + vals.nextElement()); } } } }
}
</source>