package ca.uhn.fhir.model.primitive;
   
   /*
    * #%L
    * HAPI FHIR - Core Library
    * %%
    * Copyright (C) 2014 University Health Network
    * %%
    * 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%
   */
  
  import java.net.URI;
  import java.net.URISyntaxException;
  
  import org.apache.commons.lang3.StringUtils;
  
  import ca.uhn.fhir.model.api.BasePrimitive;
  import ca.uhn.fhir.model.api.annotation.DatatypeDef;
  import ca.uhn.fhir.model.api.annotation.SimpleSetter;
  import ca.uhn.fhir.parser.DataFormatException;
  
  @DatatypeDef(name = "uri")
  public class UriDt extends BasePrimitive<URI> {
  
  	private URI myValue;
  
  	/**
  	 * Create a new String
  	 */
  	public UriDt() {
  		// nothing
  	}
  
  	/**
  	 * Create a new String
  	 */
  	@SimpleSetter
  	public UriDt(@SimpleSetter.Parameter(name = "theUri") String theValue) {
  		setValueAsString(theValue);
  	}
  
  	@Override
  	public URI getValue() {
  		return myValue;
  	}
  
  	@Override
  	public void setValue(URI theValue) {
  		myValue = theValue;
  	}
  
  	@Override
  	public void setValueAsString(String theValue) throws DataFormatException {
  		if (theValue == null) {
  			myValue = null;
  		} else {
  			try {
  				myValue = new URI(theValue);
  			} catch (URISyntaxException e) {
  				throw new DataFormatException("Unable to parse URI value", e);
  			}
  		}
  	}
  
  	@Override
  	public String getValueAsString() {
  		if (myValue == null) {
  			return null;
  		} else {
  			return myValue.toASCIIString();
  		}
  	}
  
  	@Override
  	public String toString() {
  		return getValueAsString();
  	}
  
  	@Override
  	public int hashCode() {
  		final int prime = 31;
  		int result = 1;
  		result = prime * result + ((myValue == null) ? 0 : myValue.hashCode());
  		return result;
  	}
  
  	/**
  	 * Compares the given string to the string representation of this URI. In many cases it is preferable to use this
 	 * instead of the standard {@link #equals(Object)} method, since that method returns <code>false</code> unless it is
 	 * passed an instance of {@link UriDt}
 	 */
 	public boolean equals(String theString) {
 		return StringUtils.equals(getValueAsString(), theString);
 	}
 
 	@Override
 	public boolean equals(Object obj) {
 		if (this == obj)
 			return true;
 		if (obj == null)
 			return false;
 		if (getClass() != obj.getClass())
 			return false;
 
 		UriDt other = (UriDt) obj;
 		if (myValue == null && other.myValue == null) {
 			return true;
 		}
 		if (myValue == null || other.myValue == null) {
 			return false;
 		}
 
 		URI normalize = normalize(myValue);
 		URI normalize2 = normalize(other.myValue);
 		return normalize.equals(normalize2);
 	}
 
 	private static final org.slf4j.Logger ourLog = org.slf4j.LoggerFactory.getLogger(UriDt.class);
 
 	private URI normalize(URI theValue) {
 		URI retVal = (theValue.normalize());
 		String urlString = retVal.toString();
 		if (urlString.endsWith("/") && urlString.length() > 1) {
 			try {
 				retVal = new URI(urlString.substring(0, urlString.length() - 1));
 			} catch (URISyntaxException e) {
 				ourLog.debug("Failed to normalize URL '{}', message was: {}", urlString, e.toString());
 			}
 		}
 		return retVal;
 	}
 
 	/**
 	 * Creates a new UriDt instance which uses the given OID as the content (and prepends "urn:oid:" to the OID string
 	 * in the value of the newly created UriDt, per the FHIR specification).
 	 * 
 	 * @param theOid
 	 *            The OID to use (<code>null</code> is acceptable and will result in a UriDt instance with a
 	 *            <code>null</code> value)
 	 * @return A new UriDt instance
 	 */
 	public static UriDt fromOid(String theOid) {
 		if (theOid == null) {
 			return new UriDt();
 		}
 		return new UriDt("urn:oid:" + theOid);
 	}
 
 }