| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| * |
| */ |
| package org.apache.directory.api.ldap.extras.controls.syncrepl_impl; |
| |
| |
| import java.nio.ByteBuffer; |
| |
| import org.apache.directory.api.asn1.Asn1Object; |
| import org.apache.directory.api.asn1.DecoderException; |
| import org.apache.directory.api.asn1.EncoderException; |
| import org.apache.directory.api.asn1.ber.Asn1Decoder; |
| import org.apache.directory.api.asn1.ber.tlv.BerValue; |
| import org.apache.directory.api.asn1.ber.tlv.TLV; |
| import org.apache.directory.api.asn1.ber.tlv.UniversalTag; |
| import org.apache.directory.api.i18n.I18n; |
| import org.apache.directory.api.ldap.codec.api.ControlDecorator; |
| import org.apache.directory.api.ldap.codec.api.LdapApiService; |
| import org.apache.directory.api.ldap.extras.controls.SyncDoneValue; |
| import org.apache.directory.api.ldap.extras.controls.SyncDoneValueImpl; |
| import org.apache.directory.api.util.Strings; |
| |
| |
| /** |
| * A syncDoneValue object as described in rfc4533. |
| * |
| * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> |
| */ |
| public class SyncDoneValueDecorator extends ControlDecorator<SyncDoneValue> implements SyncDoneValue |
| { |
| /** The global length for this control */ |
| private int syncDoneValueLength; |
| |
| /** An instance of this decoder */ |
| private static final Asn1Decoder decoder = new Asn1Decoder(); |
| |
| |
| /** |
| * Creates a new instance of SyncDoneValueControlCodec. |
| */ |
| public SyncDoneValueDecorator( LdapApiService codec ) |
| { |
| super( codec, new SyncDoneValueImpl() ); |
| } |
| |
| |
| /** |
| * Creates a new instance of SyncDoneValueDecorator. |
| * |
| * @param codec The LDAP codec |
| * @param control The control to be decorated |
| */ |
| public SyncDoneValueDecorator( LdapApiService codec, SyncDoneValue control ) |
| { |
| super( codec, control ); |
| } |
| |
| |
| /** |
| * Compute the syncDoneValue length. |
| * 0x30 L1 |
| * | |
| * +--> 0x04 L2 xkcd!!!... (cookie) |
| * +--> 0x01 0x01 [0x00|0xFF] (refreshDeletes) |
| */ |
| @Override |
| public int computeLength() |
| { |
| // cookie's length |
| if ( getCookie() != null ) |
| { |
| syncDoneValueLength = 1 + TLV.getNbBytes( getCookie().length ) + getCookie().length; |
| } |
| |
| // the refreshDeletes flag length |
| if ( isRefreshDeletes() ) |
| { |
| syncDoneValueLength += 1 + 1 + 1; |
| } |
| |
| valueLength = 1 + TLV.getNbBytes( syncDoneValueLength ) + syncDoneValueLength; |
| |
| // Call the super class to compute the global control length |
| return valueLength; |
| } |
| |
| |
| /** |
| * Encode the SyncDoneValue control |
| * |
| * @param buffer The encoded sink |
| * @return A ByteBuffer that contains the encoded PDU |
| * @throws EncoderException If anything goes wrong while encoding. |
| */ |
| @Override |
| public ByteBuffer encode( ByteBuffer buffer ) throws EncoderException |
| { |
| if ( buffer == null ) |
| { |
| throw new EncoderException( I18n.err( I18n.ERR_04023 ) ); |
| } |
| |
| // Encode the SEQ |
| buffer.put( UniversalTag.SEQUENCE.getValue() ); |
| buffer.put( TLV.getBytes( syncDoneValueLength ) ); |
| |
| if ( getCookie() != null ) |
| { |
| BerValue.encode( buffer, getCookie() ); |
| } |
| |
| if ( isRefreshDeletes() ) |
| { |
| BerValue.encode( buffer, isRefreshDeletes() ); |
| } |
| |
| return buffer; |
| } |
| |
| |
| /** |
| * {@inheritDoc} |
| */ |
| @Override |
| public byte[] getValue() |
| { |
| if ( value == null ) |
| { |
| try |
| { |
| computeLength(); |
| ByteBuffer buffer = ByteBuffer.allocate( valueLength ); |
| |
| // Encode the SEQ |
| buffer.put( UniversalTag.SEQUENCE.getValue() ); |
| buffer.put( TLV.getBytes( syncDoneValueLength ) ); |
| |
| if ( getCookie() != null ) |
| { |
| BerValue.encode( buffer, getCookie() ); |
| } |
| |
| if ( isRefreshDeletes() ) |
| { |
| BerValue.encode( buffer, isRefreshDeletes() ); |
| } |
| |
| value = buffer.array(); |
| } |
| catch ( Exception e ) |
| { |
| return null; |
| } |
| } |
| |
| return value; |
| } |
| |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public byte[] getCookie() |
| { |
| return getDecorated().getCookie(); |
| } |
| |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public void setCookie( byte[] cookie ) |
| { |
| // Copy the bytes |
| if ( !Strings.isEmpty( cookie ) ) |
| { |
| byte[] copy = new byte[cookie.length]; |
| System.arraycopy( cookie, 0, copy, 0, cookie.length ); |
| getDecorated().setCookie( copy ); |
| } |
| else |
| { |
| getDecorated().setCookie( null ); |
| } |
| } |
| |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public boolean isRefreshDeletes() |
| { |
| return getDecorated().isRefreshDeletes(); |
| } |
| |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public void setRefreshDeletes( boolean refreshDeletes ) |
| { |
| getDecorated().setRefreshDeletes( refreshDeletes ); |
| } |
| |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public Asn1Object decode( byte[] controlBytes ) throws DecoderException |
| { |
| ByteBuffer bb = ByteBuffer.wrap( controlBytes ); |
| SyncDoneValueContainer container = new SyncDoneValueContainer( getCodecService(), this ); |
| decoder.decode( bb, container ); |
| return this; |
| } |
| } |