Package com.sissi.pipeline.in.iq.register.store

Source Code of com.sissi.pipeline.in.iq.register.store.RegisterStoreCheckMultiUsernameProcessor

package com.sissi.pipeline.in.iq.register.store;

import com.sissi.context.JIDContext;
import com.sissi.pipeline.Input;
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.NotAcceptable;
import com.sissi.protocol.iq.data.XData;
import com.sissi.protocol.iq.data.XField;
import com.sissi.protocol.iq.register.Register;
import com.sissi.protocol.iq.register.simple.Username;

/**
* 校验当前用户是否已登录
*
* @author kim 2014年5月8日
*/
public class RegisterStoreCheckMultiUsernameProcessor implements Input {

  private final Error error = new ServerError().type(ProtocolType.CANCEL).add(NotAcceptable.DETAIL);

  @Override
  public boolean input(JIDContext context, Protocol protocol) {
    XField username = protocol.cast(Register.class).findField(XData.NAME, XData.class).findField(Username.NAME, XField.class);
    return username != null && username.getValue() != null && !username.getValue().toString().isEmpty() ? 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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