Examples of org.hibernate.ogm.util.configurationreader.spi.ConfigurationPropertyReader

Package org.hibernate.ogm.util.configurationreader.spi

Examples of org.hibernate.ogm.util.configurationreader.spi.ConfigurationPropertyReader

org.hibernate.ogm.util.configurationreader.spi.ConfigurationPropertyReader
Provides a safe access to configuration values as typically configured via {@link OgmConfiguration} or{@code persistence.xml}.
Values can be given in two ways:
- as literal value e.g. a {@code String}, {@code int}, {@code enum} or {@code java.net.URL}. These values can either be specified as instance of the target type or as String which can be converted into the target type (in case of URLs this string can either represent a class path element, an URL or a file system path).
- as an implementation type of the target type. In this case, values can be specified in the following representations:
  - as instance of the expected target type
  - as {@link Class}, representing a sub-type of the expected target type
  - as string, representing the FQN of a sub-type of the expected target type
  - as string, representing a short name as resolvable via a given {@link ShortNameResolver}
  If specified as class name, short name or class object, the specified type will be instantiated using its default constructor.
@author Gunnar Morling

  public void shouldRetrieveIntProperty() {
    Map<String, Object> properties = new HashMap<String, Object>();
    properties.put( "foo", "123" );
    properties.put( "bar", 456 );


    ConfigurationPropertyReader reader = new ConfigurationPropertyReader( properties );


    int value = reader.property( "foo", int.class ).getValue();
    assertThat( value ).isEqualTo( 123 );


    value = reader.property( "bar", int.class ).getValue();
    assertThat( value ).isEqualTo( 456 );
  }

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  public void shouldRetrieveBooleanProperty() {
    Map<String, Object> properties = new HashMap<String, Object>();
    properties.put( "foo", "true" );
    properties.put( "bar", true );


    ConfigurationPropertyReader reader = new ConfigurationPropertyReader( properties );


    boolean value = reader.property( "foo", boolean.class ).getValue();
    assertThat( value ).isEqualTo( true );


    value = reader.property( "bar", boolean.class ).getValue();
    assertThat( value ).isEqualTo( true );
  }

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  public void shouldRetrieveEnumProperty() {
    Map<String, Object> properties = new HashMap<String, Object>();
    properties.put( "foo", "ANNOTATION_TYPE" );
    properties.put( "bar", ElementType.FIELD );


    ConfigurationPropertyReader reader = new ConfigurationPropertyReader( properties );


    ElementType value = reader.property( "foo", ElementType.class ).getValue();
    assertThat( value ).isEqualTo( ElementType.ANNOTATION_TYPE );


    value = reader.property( "bar", ElementType.class ).getValue();
    assertThat( value ).isEqualTo( ElementType.FIELD );
  }

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  @Test
  public void shouldRetrieveEnumPropertyWithDefaultValue() {
    Map<String, Object> properties = new HashMap<String, Object>();


    ConfigurationPropertyReader reader = new ConfigurationPropertyReader( properties );


    ElementType value = reader.property( "foo", ElementType.class )
        .withDefault( ElementType.ANNOTATION_TYPE )
        .getValue();
    assertThat( value ).isEqualTo( ElementType.ANNOTATION_TYPE );
  }

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  @Test
  public void shouldRetrieveUrlPropertyGivenAsClassPathResource() throws Exception {
    Map<String, Object> properties = new HashMap<String, Object>();
    properties.put( "configuration_resource", "configuration-test.properties" );


    ConfigurationPropertyReader reader = new ConfigurationPropertyReader( properties );


    URL value = reader.property( "configuration_resource", URL.class ).getValue();
    assertThat( value ).isNotNull();


    Properties loadedProperties = loadPropertiesFromUrl( value );
    assertThat( loadedProperties.get( "hibernate.ogm.configuration.testproperty" ) ).isEqualTo( "foobar" );
  }

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  public void shouldRetrieveUrlPropertyGivenAsStringUrl() throws Exception {
    URL root = ConfigurationPropertyReaderTest.class.getClassLoader().getResource( "." );
    Map<String, Object> properties = new HashMap<String, Object>();
    properties.put( "configuration_resource", root.toExternalForm() + "/configuration-test.properties" );


    ConfigurationPropertyReader reader = new ConfigurationPropertyReader( properties );


    URL value = reader.property( "configuration_resource", URL.class ).getValue();
    assertThat( value ).isNotNull();


    Properties loadedProperties = loadPropertiesFromUrl( value );
    assertThat( loadedProperties.get( "hibernate.ogm.configuration.testproperty" ) ).isEqualTo( "foobar" );
  }

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  public void shouldRetrieveUrlPropertyGivenAsFileSystemPath() throws Exception {
    File root = new File( ConfigurationPropertyReaderTest.class.getClassLoader().getResource( "." ).toURI() );
    Map<String, Object> properties = new HashMap<String, Object>();
    properties.put( "configuration_resource", root + File.separator + "configuration-test.properties" );


    ConfigurationPropertyReader reader = new ConfigurationPropertyReader( properties );


    URL value = reader.property( "configuration_resource", URL.class ).getValue();
    assertThat( value ).isNotNull();


    Properties loadedProperties = loadPropertiesFromUrl( value );
    assertThat( loadedProperties.get( "hibernate.ogm.configuration.testproperty" ) ).isEqualTo( "foobar" );
  }

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  @Test
  public void shouldRetrieveUrlPropertyGivenAsUrl() throws Exception {
    Map<String, Object> properties = new HashMap<String, Object>();
    properties.put( "configuration_resource", new URL( "file://foobar/" ) );


    ConfigurationPropertyReader reader = new ConfigurationPropertyReader( properties );


    URL value = reader.property( "configuration_resource", URL.class ).getValue();
    assertThat( value ).isEqualTo( new URL( "file://foobar/" ) );
  }

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    Map<String, Object> properties = new HashMap<String, Object>();


    thrown.expect( HibernateException.class );
    thrown.expectMessage( "OGM000052" );


    ConfigurationPropertyReader reader = new ConfigurationPropertyReader( properties );


    reader.property( "foo", ElementType.class )
        .required()
        .getValue();
  }

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    properties.put( "myPort", 98765 );


    thrown.expect( HibernateException.class );
    thrown.expectMessage( "OGM000049" );


    ConfigurationPropertyReader reader = new ConfigurationPropertyReader( properties );


    reader.property( "myPort", int.class )
        .withValidator( Validators.PORT )
        .getValue();
  }

View Full Code Here

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