Package org.linuxforhealth.fhir.config

Class PropertyGroup

  • public class PropertyGroup
extends java.lang.Object
    This class represents a collection of properties - a property group. This could be the entire set of properties resulting from loading the configuration, or it could be just a sub-structure within the overall config hierarchy, as a property group can contain other property groups. Internally, there is a JsonObject which holds the actual group of properties and this class provides a high-level API for accessing properties in a hierarchical manner.

    • Nested Class Summary

      Nested Classes 
      Modifier and Type Class Description
      static class  PropertyGroup.PropertyEntry
      This class represents a single property contained within a PropertyGroup.

    • Field Summary

      Fields 
      Modifier and Type Field Description
      protected jakarta.json.JsonObject jsonObj  
      static java.lang.String PATH_ELEMENT_SEPARATOR
      This constant represents the separator character used within a hierarchical property name.

    • Constructor Summary

      Constructors 
      Constructor Description
      PropertyGroup​(jakarta.json.JsonObject jsonObj)  

    • Method Summary

      All Methods Static Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      static java.lang.Object convertJsonValue​(jakarta.json.JsonValue jsonValue)
      Converts the specified JsonValue into the appropriate java.lang.* type.
      java.lang.Object[] getArrayProperty​(java.lang.String propertyName)
      Returns the value (as an array of Object) of the specified array property.
      java.lang.Boolean getBooleanProperty​(java.lang.String propertyName)
      Returns the value of the specified boolean property or null if it wasn't found.
      java.lang.Boolean getBooleanProperty​(java.lang.String propertyName, java.lang.Boolean defaultValue)
      Returns the value of the specified boolean property.
      java.lang.Double getDoubleProperty​(java.lang.String propertyName)
      Returns the value of the specified double property or null if it wasn't found.
      java.lang.Double getDoubleProperty​(java.lang.String propertyName, java.lang.Double defaultValue)
      Returns the value of the specified double property.
      java.lang.Integer getIntProperty​(java.lang.String propertyName)
      Returns the value of the specified int property or null if it wasn't found.
      java.lang.Integer getIntProperty​(java.lang.String propertyName, java.lang.Integer defaultValue)
      Returns the value of the specified int property.
      jakarta.json.JsonObject getJsonObj()  
      jakarta.json.JsonValue getJsonValue​(java.lang.String propertyName)
      Finds the specified property and returns it as a generic JsonValue.
      protected java.lang.String[] getPathElements​(java.lang.String propertyName)
      Splits a potentially hierarchical property name into the individual path elements
      java.util.List<PropertyGroup.PropertyEntry> getProperties()
      Returns the properties contained in the PropertyGroup in the form of a list of PropertyEntry instances.
      PropertyGroup getPropertyGroup​(java.lang.String propertyName)
      Returns a PropertyGroup associated with the specified property.
      protected jakarta.json.JsonObject getPropertySubGroup​(java.lang.String[] pathElements)
      This function will find the JSON "sub object" rooted at "this.jsonObj" that is associated with the specified hierarchical property name.
      java.util.List<java.lang.String> getStringListProperty​(java.lang.String propertyName)
      This is a convenience function that will retrieve an array property, then convert it to a list of Strings by calling toString() on each array element.
      java.lang.String getStringProperty​(java.lang.String propertyName)
      Returns the value of the specified String property or null if it wasn't found.
      java.lang.String getStringProperty​(java.lang.String propertyName, java.lang.String defaultValue)
      Returns the value of the specified String property.
      protected void setJsonObj​(jakarta.json.JsonObject jsonObj)  
      java.lang.String toString()
      Returns the String representation of the PropertyGroup instance.

      • Methods inherited from class java.lang.Object

        clone, equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

    • Field Detail

      • PATH_ELEMENT_SEPARATOR

        public static final java.lang.String PATH_ELEMENT_SEPARATOR
        This constant represents the separator character used within a hierarchical property name. Example: fhir-server/server-core/truststoreLocation
        See Also:
        Constant Field Values

      • jsonObj

        protected jakarta.json.JsonObject jsonObj

    • Constructor Detail

      • PropertyGroup

        public PropertyGroup​(jakarta.json.JsonObject jsonObj)

    • Method Detail

      • getJsonObj

        public jakarta.json.JsonObject getJsonObj()

      • setJsonObj

        protected void setJsonObj​(jakarta.json.JsonObject jsonObj)

      • getPropertyGroup

        public PropertyGroup getPropertyGroup​(java.lang.String propertyName)
        Returns a PropertyGroup associated with the specified property.
        Parameters:
        propertyName - a hierarchical property name (e.g. "level1/level2/level3") that refers to a property group.
        Returns:
        a PropertyGroup that holds the sub-structure associated with the specified property.

      • getStringProperty

        public java.lang.String getStringProperty​(java.lang.String propertyName)
                                   throws java.lang.Exception
        Returns the value of the specified String property or null if it wasn't found. If the value is encoded, then it will be decoded.
        Parameters:
        propertyName - the name of the property to retrieved
        Throws:
        java.lang.Exception

      • getStringProperty

        public java.lang.String getStringProperty​(java.lang.String propertyName,
                                          java.lang.String defaultValue)
                                   throws java.lang.Exception
        Returns the value of the specified String property. If not found, then 'defaultValue' is returned instead. If the value is encoded, then it will be decoded.
        Parameters:
        propertyName - the name of the property to retrieve
        Throws:
        java.lang.Exception

      • getStringListProperty

        public java.util.List<java.lang.String> getStringListProperty​(java.lang.String propertyName)
        This is a convenience function that will retrieve an array property, then convert it to a list of Strings by calling toString() on each array element.
        Parameters:
        propertyName - the name of the property to retrieve
        Returns:
        a List containing the elements from the JSON array property; possibly null

      • getIntProperty

        public java.lang.Integer getIntProperty​(java.lang.String propertyName)
        Returns the value of the specified int property or null if it wasn't found.
        Parameters:
        propertyName - the name of the property to retrieve

      • getIntProperty

        public java.lang.Integer getIntProperty​(java.lang.String propertyName,
                                        java.lang.Integer defaultValue)
        Returns the value of the specified int property. If not found, then 'defaultValue' is returned instead.
        Parameters:
        propertyName - the name of the property to retrieve

      • getDoubleProperty

        public java.lang.Double getDoubleProperty​(java.lang.String propertyName)
        Returns the value of the specified double property or null if it wasn't found.
        Parameters:
        propertyName - the name of the property to retrieve

      • getDoubleProperty

        public java.lang.Double getDoubleProperty​(java.lang.String propertyName,
                                          java.lang.Double defaultValue)
        Returns the value of the specified double property. If not found, then 'defaultValue' is returned instead.
        Parameters:
        propertyName - the name of the property to retrieve

      • getBooleanProperty

        public java.lang.Boolean getBooleanProperty​(java.lang.String propertyName)
        Returns the value of the specified boolean property or null if it wasn't found.
        Parameters:
        propertyName - the name of the property to retrieve

      • getBooleanProperty

        public java.lang.Boolean getBooleanProperty​(java.lang.String propertyName,
                                            java.lang.Boolean defaultValue)
        Returns the value of the specified boolean property. If not found, then 'defaultValue' is returned instead.
        Parameters:
        propertyName - the name of the property to retrieve

      • getArrayProperty

        public java.lang.Object[] getArrayProperty​(java.lang.String propertyName)
        Returns the value (as an array of Object) of the specified array property. Each element of the returned array will be an instance of Boolean, Integer, Double, String or PropertyGroup, depending on the value type associated with the property within the underlying JsonObject.
        Parameters:
        propertyName - the name of the property to retrieve
        Returns:
        an array of values from the specified array property or null if the property doesn't exist

      • getProperties

        public java.util.List<PropertyGroup.PropertyEntry> getProperties()
        Returns the properties contained in the PropertyGroup in the form of a list of PropertyEntry instances. If no properties exist, then an empty list will be returned. Properties with a value of null will be omitted from the list.

      • toString

        public java.lang.String toString()
        Returns the String representation of the PropertyGroup instance.
        Overrides:
        toString in class java.lang.Object

      • convertJsonValue

        public static java.lang.Object convertJsonValue​(jakarta.json.JsonValue jsonValue)
        Converts the specified JsonValue into the appropriate java.lang.* type.
        Parameters:
        jsonValue - the JsonValue instance to be converted
        Returns:
        either null or an instance of Boolean, Integer, String, PropertyGroup, or List

        • getJsonValue

          public jakarta.json.JsonValue getJsonValue​(java.lang.String propertyName)
          Finds the specified property and returns it as a generic JsonValue.
          Parameters:
          propertyName - the possibly hierarchical property name.
          Returns:
          the property value as a JsonValue or null if the property is either missing or has a null value

        • getPathElements

          protected java.lang.String[] getPathElements​(java.lang.String propertyName)
          Splits a potentially hierarchical property name into the individual path elements
          Parameters:
          propertyName - a hierarchical property name (e.g. "level1/level2/myProperty"
          Returns:

        • getPropertySubGroup

          protected jakarta.json.JsonObject getPropertySubGroup​(java.lang.String[] pathElements)
          This function will find the JSON "sub object" rooted at "this.jsonObj" that is associated with the specified hierarchical property name.

          For example, consider the following JSON structure: 

           {
     "level1":{
         "level2":{
             "myProperty":"myValue"
         }
     }
 }
          If this function was invoked with a property name of "level1/level2/myProperty", then the result will be the JsonObject associated with the "level2" field within the JSON structure above.
          Parameters:
          pathElements - an array of path elements that make up the hierarchical property name (e.g. {"level1", "level2", "myProperty"})
          Returns:
          the JsonObject sub-structure that contains the specified property.