Package com.cedarsoft.version

Examples of com.cedarsoft.version.Version

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    Serializer<T> serializer = getSerializer();

    Map<? extends Version, ? extends byte[]> serializedMap = getSerialized();

    for ( Map.Entry<? extends Version, ? extends byte[]> entry : serializedMap.entrySet() ) {
      Version version = entry.getKey();
      byte[] serialized = entry.getValue();

      T deserialized = serializer.deserialize( new ByteArrayInputStream( serialized ) );

      verifyDeserialized( deserialized, version );
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*/
public class ModelSerializer extends AbstractStaxSerializer<Model> {
  //START SNIPPET: constructor

  public ModelSerializer() {
    super( "model", "http://thecompany.com/test/model", new VersionRange( new Version( 1, 0, 0 ), new Version( 1, 0, 0 ) ) );
  }
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*/
public class ExtraSerializer extends AbstractStaxSerializer<Extra> {
  //START SNIPPET: fieldsAndConstructors

  public ExtraSerializer( MoneySerializer moneySerializer ) {
    super( "extra", "http://thecompany.com/test/extra", new VersionRange( new Version( 1, 5, 0 ), new Version( 1, 5, 1 ) ) );
    //We choose another version number. Maybe this is an old serializer that has been created within another project.

    add( moneySerializer ).responsibleFor( Money.class )
      .map( 1, 5, 0 ).toDelegateVersion( 1, 0, 0 )
      .map( 1, 5, 1 ).toDelegateVersion( 1, 0, 1 ) //this is the only line that has to be added! Everything else (below) stays the same!
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* Writing is only supported for the latest file.
*/
public class MoneySerializer extends AbstractStaxSerializer<Money> {
  public MoneySerializer() {
    //This serializer supports an old version, too
    super( "money", "http://thecompany.com/test/money", new VersionRange( new Version( 1, 0, 0 ), new Version( 1, 0, 1 ) ) );
  }
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    //So it seems easier to add just one if/else.
    //If a serializer evolves further a switch to the strategy pattern might be done. A simple map holding the strategies should do it.


    //The common case - current version
    if ( formatVersion.equals( new Version( 1, 0, 1 ) ) ) {
      int cents = Integer.parseInt( deserializeFrom.getAttributeValue( null, "cents" ) );

      //We have to close the tag! Every stax based serializer has to close its tag
      //getText does this automatically for us. But when only using attributes, we have to close it manually.
      closeTag( deserializeFrom );

      return new Money( cents );

      //The old format that does not use an attribute but text instead
    } else if ( formatVersion.equals( new Version( 1, 0, 0 ) ) ) {
      int cents = Integer.parseInt( getText( deserializeFrom ) );

      //We don't have to close the tag. The getText method does that for us
      return new Money( cents );
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  @Override
  public void serialize( @Nonnull JsonGenerator serializeTo, @Nonnull T object, @Nonnull Version formatVersion ) throws IOException, VersionException, JsonProcessingException {
    assert isVersionWritable( formatVersion );

    SerializingStrategy<T, JsonGenerator, JsonParser, JsonProcessingException> strategy = serializingStrategySupport.findStrategy( object );
    Version resolvedVersion = serializingStrategySupport.resolveVersion( strategy, formatVersion );
    serializeTo.writeStringField( PROPERTY_SUB_TYPE, strategy.getId() );

    strategy.serialize( serializeTo, object, resolvedVersion );
  }
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    if ( type == null ) {
      throw new JsonParseException( "Attribute" + PROPERTY_SUB_TYPE + " not found. Cannot find strategy.", deserializeFrom.getCurrentLocation() );
    }

    SerializingStrategy<? extends T, JsonGenerator, JsonParser, JsonProcessingException> strategy = serializingStrategySupport.findStrategy( type );
    Version resolvedVersion = serializingStrategySupport.resolveVersion( strategy, formatVersion );
    return strategy.deserialize( deserializeFrom, resolvedVersion );
  }
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   */
  @Nonnull
  protected T deserializeInternal( @Nonnull JsonParser parser, @Nullable Version formatVersionOverride ) throws IOException, JsonProcessingException, InvalidTypeException {
    JacksonParserWrapper wrapper = new JacksonParserWrapper( parser );

    Version version = prepareDeserialization( wrapper, formatVersionOverride );

    T deserialized = deserialize( parser, version );

    if ( isObjectType() ) {
      ensureObjectClosed( parser );
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      if ( formatVersionOverride == null ) {
        wrapper.nextFieldValue( PROPERTY_TYPE );
        String readType = wrapper.getText();
        verifyType( readType );
        wrapper.nextFieldValue( PROPERTY_VERSION );
        Version version = Version.parse( wrapper.getText() );
        verifyVersionReadable( version );
        return version;
      } else {
        verifyVersionReadable( formatVersionOverride );
        return formatVersionOverride;
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    serializeArray( elements, type, null, serializeTo, formatVersion );
  }

  protected <T> void serializeArray( @Nonnull Iterable<? extends T> elements, @Nonnull Class<T> type, @Nullable String propertyName, @Nonnull JsonGenerator serializeTo, @Nonnull Version formatVersion ) throws IOException {
    JacksonSerializer<? super T> serializer = getSerializer( type );
    Version delegateVersion = delegatesMappings.getVersionMappings().resolveVersion( type, formatVersion );

    if ( propertyName == null ) {
      serializeTo.writeStartArray();
    } else {
      serializeTo.writeArrayFieldStart( propertyName );
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