this.isExists = false;

        try {
            if ( this.url.getHost().length() == 0 ) {}
            else if ( this.fileLocator.getShare() == null ) {
                if ( this.fileLocator.getType() == TYPE_WORKGROUP ) {
                    getContext().getNameServiceClient().getByName(this.url.getHost(), true);
                }
                else {

        isExists = false;

        try {
            if( url.getHost().length() == 0 ) {
            } else if( share == null ) {
                if( getType() == TYPE_WORKGROUP ) {
                    UniAddress.getByName( url.getHost(), true );
                } else {
                    UniAddress.getByName( url.getHost() ).getHostName();
                }