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The UnboundID LDAP SDK for Java is a fast, comprehensive, and easy-to-use
Java API for communicating with LDAP directory servers and performing
related tasks like reading and writing LDIF, encoding and decoding data
using base64 and ASN.1 BER, and performing secure communication. This
package contains the Standard Edition of the LDAP SDK, which is a
complete, general-purpose library for communicating with LDAPv3 directory
servers.
/*
* Copyright 2009-2018 Ping Identity Corporation
* All Rights Reserved.
*/
/*
* Copyright (C) 2009-2018 Ping Identity Corporation
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License (GPLv2 only)
* or the terms of the GNU Lesser General Public License (LGPLv2.1 only)
* as published by the Free Software Foundation.
*
* This program 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 for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see .
*/
package com.unboundid.ldap.protocol;
import com.unboundid.asn1.ASN1Buffer;
import com.unboundid.asn1.ASN1BufferSequence;
import com.unboundid.asn1.ASN1Element;
import com.unboundid.asn1.ASN1OctetString;
import com.unboundid.asn1.ASN1Sequence;
import com.unboundid.asn1.ASN1StreamReader;
import com.unboundid.asn1.ASN1StreamReaderSequence;
import com.unboundid.ldap.sdk.Control;
import com.unboundid.ldap.sdk.ExtendedRequest;
import com.unboundid.ldap.sdk.LDAPException;
import com.unboundid.ldap.sdk.ResultCode;
import com.unboundid.util.Debug;
import com.unboundid.util.InternalUseOnly;
import com.unboundid.util.NotMutable;
import com.unboundid.util.StaticUtils;
import com.unboundid.util.ThreadSafety;
import com.unboundid.util.ThreadSafetyLevel;
import com.unboundid.util.Validator;
import static com.unboundid.ldap.protocol.ProtocolMessages.*;
/**
* This class provides an implementation of an LDAP extended request protocol
* op.
*/
@InternalUseOnly()
@NotMutable()
@ThreadSafety(level=ThreadSafetyLevel.COMPLETELY_THREADSAFE)
public final class ExtendedRequestProtocolOp
implements ProtocolOp
{
/**
* The BER type for the OID element.
*/
public static final byte TYPE_OID = (byte) 0x80;
/**
* The BER type for the value element.
*/
public static final byte TYPE_VALUE = (byte) 0x81;
/**
* The serial version UID for this serializable class.
*/
private static final long serialVersionUID = -5343424210200494377L;
// The value for this extended request.
private final ASN1OctetString value;
// The OID for this extended request.
private final String oid;
/**
* Creates a new extended request protocol op with the provided information.
*
* @param oid The OID for this extended request.
* @param value The value for this extended request, or {@code null} if
* there should not be a value.
*/
public ExtendedRequestProtocolOp(final String oid,
final ASN1OctetString value)
{
this.oid = oid;
if (value == null)
{
this.value = null;
}
else
{
this.value = new ASN1OctetString(TYPE_VALUE, value.getValue());
}
}
/**
* Creates a new extended request protocol op from the provided extended
* request object.
*
* @param request The extended request object to use to create this protocol
* op.
*/
public ExtendedRequestProtocolOp(final ExtendedRequest request)
{
oid = request.getOID();
value = request.getValue();
}
/**
* Creates a new extended request protocol op read from the provided ASN.1
* stream reader.
*
* @param reader The ASN.1 stream reader from which to read the extended
* request protocol op.
*
* @throws LDAPException If a problem occurs while reading or parsing the
* extended request.
*/
ExtendedRequestProtocolOp(final ASN1StreamReader reader)
throws LDAPException
{
try
{
final ASN1StreamReaderSequence opSequence = reader.beginSequence();
oid = reader.readString();
Validator.ensureNotNull(oid);
if (opSequence.hasMoreElements())
{
value = new ASN1OctetString(TYPE_VALUE, reader.readBytes());
}
else
{
value = null;
}
}
catch (final Exception e)
{
Debug.debugException(e);
throw new LDAPException(ResultCode.DECODING_ERROR,
ERR_EXTENDED_REQUEST_CANNOT_DECODE.get(
StaticUtils.getExceptionMessage(e)),
e);
}
}
/**
* Retrieves the OID for this extended request.
*
* @return The OID for this extended request.
*/
public String getOID()
{
return oid;
}
/**
* Retrieves the value for this extended request, if any.
*
* @return The value for this extended request, or {@code null} if there is
* no value.
*/
public ASN1OctetString getValue()
{
return value;
}
/**
* {@inheritDoc}
*/
@Override()
public byte getProtocolOpType()
{
return LDAPMessage.PROTOCOL_OP_TYPE_EXTENDED_REQUEST;
}
/**
* {@inheritDoc}
*/
@Override()
public ASN1Element encodeProtocolOp()
{
if (value == null)
{
return new ASN1Sequence(LDAPMessage.PROTOCOL_OP_TYPE_EXTENDED_REQUEST,
new ASN1OctetString(TYPE_OID, oid));
}
else
{
return new ASN1Sequence(LDAPMessage.PROTOCOL_OP_TYPE_EXTENDED_REQUEST,
new ASN1OctetString(TYPE_OID, oid),
value);
}
}
/**
* Decodes the provided ASN.1 element as an extended request protocol op.
*
* @param element The ASN.1 element to be decoded.
*
* @return The decoded extended request protocol op.
*
* @throws LDAPException If the provided ASN.1 element cannot be decoded as
* an extended request protocol op.
*/
public static ExtendedRequestProtocolOp decodeProtocolOp(
final ASN1Element element)
throws LDAPException
{
try
{
final ASN1Element[] elements =
ASN1Sequence.decodeAsSequence(element).elements();
final String oid =
ASN1OctetString.decodeAsOctetString(elements[0]).stringValue();
final ASN1OctetString value;
if (elements.length == 1)
{
value = null;
}
else
{
value = ASN1OctetString.decodeAsOctetString(elements[1]);
}
return new ExtendedRequestProtocolOp(oid, value);
}
catch (final Exception e)
{
Debug.debugException(e);
throw new LDAPException(ResultCode.DECODING_ERROR,
ERR_EXTENDED_REQUEST_CANNOT_DECODE.get(
StaticUtils.getExceptionMessage(e)),
e);
}
}
/**
* {@inheritDoc}
*/
@Override()
public void writeTo(final ASN1Buffer buffer)
{
final ASN1BufferSequence opSequence =
buffer.beginSequence(LDAPMessage.PROTOCOL_OP_TYPE_EXTENDED_REQUEST);
buffer.addOctetString(TYPE_OID, oid);
if (value != null)
{
buffer.addOctetString(TYPE_VALUE, value.getValue());
}
opSequence.end();
}
/**
* Creates an extended request from this protocol op.
*
* @param controls The set of controls to include in the extended request.
* It may be empty or {@code null} if no controls should be
* included.
*
* @return The extended request that was created.
*/
public ExtendedRequest toExtendedRequest(final Control... controls)
{
return new ExtendedRequest(oid, value, controls);
}
/**
* Retrieves a string representation of this protocol op.
*
* @return A string representation of this protocol op.
*/
@Override()
public String toString()
{
final StringBuilder buffer = new StringBuilder();
toString(buffer);
return buffer.toString();
}
/**
* {@inheritDoc}
*/
@Override()
public void toString(final StringBuilder buffer)
{
buffer.append("ExtendedRequestProtocolOp(oid='");
buffer.append(oid);
buffer.append("')");
}
}