Example usage for javax.naming.ldap LdapContext getRequestControls

Introduction

In this page you can find the example usage for javax.naming.ldap LdapContext getRequestControls.

Prototype

public Control[] getRequestControls() throws NamingException;

Source Link

Document

Retrieves the request controls in effect for this context.

Usage

From source file:org.springframework.ldap.control.AbstractRequestControlDirContextProcessor.java

/**
 * Get the existing RequestControls from the LdapContext, call
 * {@link #createRequestControl()} to get a new instance, build a new array
 * of Controls and set it on the LdapContext.
 * <p>// w  w w .j av  a 2  s  .com
 * The {@link Control} feature is specific for LDAP v3 and thus applies only
 * to {@link LdapContext}. However, the generic DirContextProcessor
 * mechanism used for calling <code>preProcess</code> and
 * <code>postProcess</code> uses DirContext, since it also works for LDAP
 * v2. This is the reason that DirContext has to be cast to a LdapContext.
 * 
 * @param ctx an LdapContext instance.
 * @throws NamingException
 * @throws IllegalArgumentException if the supplied DirContext is not an
 * LdapContext.
 */
public void preProcess(DirContext ctx) throws NamingException {
    LdapContext ldapContext;
    if (ctx instanceof LdapContext) {
        ldapContext = (LdapContext) ctx;
    } else {
        throw new IllegalArgumentException(
                "Request Control operations require LDAPv3 - " + "Context must be of type LdapContext");
    }

    Control[] requestControls = ldapContext.getRequestControls();
    if (requestControls == null) {
        requestControls = new Control[0];
    }
    Control newControl = createRequestControl();

    Control[] newControls = new Control[requestControls.length + 1];
    for (int i = 0; i < requestControls.length; i++) {
        if (replaceSameControlEnabled && requestControls[i].getClass() == newControl.getClass()) {
            log.debug("Replacing already existing control in context: " + newControl);
            requestControls[i] = newControl;
            ldapContext.setRequestControls(requestControls);
            return;
        }
        newControls[i] = requestControls[i];
    }

    // Add the new Control at the end of the array.
    newControls[newControls.length - 1] = newControl;

    ldapContext.setRequestControls(newControls);
}

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