SortResponseControl: getException()
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*
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* 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
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import java.io.IOException;
import java.util.Hashtable;
import javax.naming.Context;
import javax.naming.NamingEnumeration;
import javax.naming.NamingException;
import javax.naming.directory.SearchControls;
import javax.naming.directory.SearchResult;
import javax.naming.ldap.Control;
import javax.naming.ldap.HasControls;
import javax.naming.ldap.InitialLdapContext;
import javax.naming.ldap.LdapContext;
import javax.naming.ldap.SortControl;
import javax.naming.ldap.SortResponseControl;
/**
* Shows how sorted search results can be obtained using SortControl API
*/
class SortedResults {
public static void main(String[] args) throws IOException {
// 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/ou=People,o=JNDITutorial");
try {
// Create initial context with no connection request controls
LdapContext ctx = new InitialLdapContext(env, null);
// Create a sort control that sorts based on CN
String sortKey = "cn";
ctx.setRequestControls(new Control[] { new SortControl(sortKey,
Control.CRITICAL) });
// Perform a search
NamingEnumeration results = ctx.search("", "(objectclass=*)",
new SearchControls());
// Iterate over search results
System.out.println("---->sort by cn");
while (results != null && results.hasMore()) {
// Display an entry
SearchResult entry = (SearchResult) results.next();
System.out.println(entry.getName());
// Handle the entry's response controls (if any)
if (entry instanceof HasControls) {
// ((HasControls)entry).getControls();
}
}
// Examine the sort control response
Control[] controls = ctx.getResponseControls();
if (controls != null) {
for (int i = 0; i < controls.length; i++) {
if (controls[i] instanceof SortResponseControl) {
SortResponseControl src = (SortResponseControl) controls[i];
if (!src.isSorted()) {
throw src.getException();
}
} else {
// Handle other response controls (if any)
}
}
}
// Close when no longer needed
ctx.close();
} catch (NamingException e) {
e.printStackTrace();
}
}
}
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