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/*
 * #%L
 * HAPI FHIR - Core Library
 * %%
 * Copyright (C) 2014 - 2024 Smile CDR, Inc.
 * %%
 * Licensed 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.
 * #L%
 */
package ca.uhn.fhir.rest.gclient;

import ca.uhn.fhir.context.FhirContext;
import ca.uhn.fhir.rest.param.ParamPrefixEnum;
import ca.uhn.fhir.rest.param.ParameterUtil;

import static org.apache.commons.lang3.StringUtils.isNotBlank;

class QuantityCriterion implements ICriterion, ICriterionInternal {

	private String myValue;
	private String myName;
	private String mySystem;
	private String myUnits;
	private ParamPrefixEnum myPrefix;

	public QuantityCriterion(
			String theParamName, ParamPrefixEnum thePrefix, String theValue, String theSystem, String theUnits) {
		myValue = theValue;
		myPrefix = thePrefix;
		myName = theParamName;
		mySystem = theSystem;
		myUnits = theUnits;
	}

	@Override
	public String getParameterName() {
		return myName;
	}

	@Override
	public String getParameterValue(FhirContext theContext) {
		StringBuilder b = new StringBuilder();
		if (isNotBlank(myValue) || isNotBlank(mySystem) || isNotBlank(myUnits)) {
			if (myPrefix != null) {
				b.append(ParameterUtil.escapeWithDefault(myPrefix.getValue()));
			}
			b.append(ParameterUtil.escapeWithDefault(myValue));
			b.append('|');
			b.append(ParameterUtil.escapeWithDefault(mySystem));
			b.append('|');
			b.append(ParameterUtil.escapeWithDefault(myUnits));
		}
		return b.toString();
	}
}