Package com.sissi.pipeline.in.presence.muc

Source Code of com.sissi.pipeline.in.presence.muc.PresenceMucCheckNicknameExistsProcessor

package com.sissi.pipeline.in.presence.muc;

import com.sissi.context.JIDContext;
import com.sissi.context.JIDs;
import com.sissi.pipeline.in.ProxyProcessor;
import com.sissi.protocol.Error;
import com.sissi.protocol.Protocol;
import com.sissi.protocol.ProtocolType;
import com.sissi.protocol.error.ServerError;
import com.sissi.protocol.error.detail.Conflict;
import com.sissi.ucenter.relation.muc.MucRelationMapping;

/**
* 昵称冲突性校验
*
* @author kim 2014年2月11日
*/
public class PresenceMucCheckNicknameExistsProcessor extends ProxyProcessor {

  private final Error error = new ServerError().setCode("409").type(ProtocolType.CANCEL).add(Conflict.DETAIL_ELEMENT);

  private final MucRelationMapping mapping;

  private final boolean multi;

  public PresenceMucCheckNicknameExistsProcessor(boolean multi, MucRelationMapping mapping) {
    super();
    this.mapping = mapping;
    this.multi = multi;
  }

  /*
   * 昵称存在且不属于当前JID
   *
   * @see com.sissi.pipeline.Input#input(com.sissi.context.JIDContext, com.sissi.protocol.Protocol)
   */
  @Override
  public boolean input(JIDContext context, Protocol protocol) {
    JIDs exists = this.mapping.mapping(super.build(protocol.getTo()));
    return exists.isEmpty() || (this.multi ? exists.like(context.jid()) : exists.same(context.jid())) ? true : this.writeAndReturn(context, protocol);
  }

  private boolean writeAndReturn(JIDContext context, Protocol protocol) {
    context.write(protocol.parent().reply().setError(this.error));
    return false;
  }
}
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