Java Code Examples for org.apache.commons.configuration2.io.FileHandler#setEncoding()

/**
 * Tests whether the encoding is written when saving a configuration.
 */
@Test
public void testSaveWithEncoding() throws ConfigurationException
{
    final String encoding = "UTF-8";
    final FileHandler handler = new FileHandler(config);
    handler.setEncoding(encoding);
    final StringWriter writer = new StringWriter();
    handler.save(writer);
    assertTrue(
            "Encoding not found",
            writer.toString()
                    .indexOf(
                            "<?xml version=\"1.0\" encoding=\"" + encoding
                                    + "\"?>") >= 0);
}
 

public static HierarchicalConfiguration<ImmutableNode> readXmlConfiguration(InputStream input)
        throws ConfigurationException {
    Parameters params = new Parameters();
    FileBasedConfigurationBuilder<XMLConfiguration> builder =
            new FileBasedConfigurationBuilder<>(XMLConfiguration.class);
    XMLConfiguration config = builder.configure(params.xml()).getConfiguration();
    FileHandler fileHandler = new FileHandler(config);

    fileHandler.setEncoding("UTF-8");
    fileHandler.load(input);

    return config;
}
 

/**
 * Initializes the encoding of the specified file handler. If already an
 * encoding is set, it is used. Otherwise, the default encoding for the
 * result configuration class is obtained and set.
 *
 * @param handler the handler to be initialized
 */
private void initEncoding(final FileHandler handler)
{
    if (StringUtils.isEmpty(handler.getEncoding()))
    {
        final String encoding = getDefaultEncoding(getResultClass());
        if (encoding != null)
        {
            handler.setEncoding(encoding);
        }
    }
}
 

/**
 * Tests whether the encoding is written to the generated XML file.
 */
@Test
public void testSaveWithEncoding() throws ConfigurationException
{
    conf = new XMLConfiguration();
    conf.setProperty("test", "a value");
    final FileHandler handler = new FileHandler(conf);
    handler.setEncoding(ENCODING);

    final StringWriter out = new StringWriter();
    handler.save(out);
    assertThat("Encoding was not written to file", out.toString(),
            containsString("encoding=\"" + ENCODING + "\""));
}
 

/**
 * Tests whether the default encoding can be overridden when initializing
 * the file handler.
 */
@Test
public void testInitFileHandlerOverrideDefaultEncoding()
        throws ConfigurationException
{
    final FileBasedConfigurationBuilder<PropertiesConfiguration> builder =
            new FileBasedConfigurationBuilder<>(
                    PropertiesConfiguration.class);
    final FileHandler handler = new FileHandler();
    final String encoding = "testEncoding";
    handler.setEncoding(encoding);
    builder.initFileHandler(handler);
    assertEquals("Encoding was changed", encoding, handler.getEncoding());
}