private void createDataFormatConfigurationSource()

in tooling/camel-spring-boot-generator-maven-plugin/src/main/java/org/apache/camel/springboot/maven/SpringBootAutoConfigurationMojo.java [1085:1190]
77 lines of code
22 McCabe index (conditional complexity)

    private void createDataFormatConfigurationSource(String packageName, DataFormatModel model,
            String overrideDataFormatName) throws MojoFailureException {
        final JavaClass javaClass = new JavaClass(getProjectClassLoader());

        int pos = model.getJavaType().lastIndexOf(".");
        String name = model.getJavaType().substring(pos + 1);
        name = name.replace("DataFormat", "DataFormatConfiguration");
        javaClass.setPackage(packageName).setName(name);
        javaClass.extendSuperType("DataFormatConfigurationPropertiesCommon");
        javaClass.addImport("org.apache.camel.spring.boot.DataFormatConfigurationPropertiesCommon");

        // add bogus field for enabled so spring boot tooling can get the
        // javadoc as description in its metadata
        Property bogus = javaClass.addProperty("java.lang.Boolean", "enabled");
        bogus.getField().getJavaDoc().setText("Whether to enable auto configuration of the " + model.getName()
                + " data format. This is enabled by default.");
        bogus.removeAccessor();
        bogus.removeMutator();

        String doc = "Generated by camel-package-maven-plugin - do not edit this file!";
        if (!Strings.isNullOrEmpty(model.getDescription())) {
            doc = model.getDescription() + "\n\n" + doc;
        }
        javaClass.getJavaDoc().setFullText(doc);

        String prefix = "camel.dataformat."
                + camelCaseToDash(overrideDataFormatName != null ? overrideDataFormatName : model.getName());
        // make sure prefix is in lower case
        prefix = prefix.toLowerCase(Locale.US);
        javaClass.addAnnotation("org.springframework.boot.context.properties.ConfigurationProperties")
                .setStringValue("prefix", prefix);

        for (DataFormatOptionModel option : model.getOptions()) {
            // skip option with name id in data format as we do not need that
            if ("id".equals(option.getName())) {
                continue;
            }
            Object defaultValue = option.getDefaultValue();
            String type = option.getJavaType();
            type = getSimpleJavaType(type);

            // special for bindy
            if ("org.apache.camel.model.dataformat.BindyType".equals(option.getJavaType())) {
                // force to use a string type
                type = "java.lang.String";
                defaultValue = null;
            } else if (option.getJavaType().contains("org.apache.camel.model.dataformat")) {
                // skip options that are from the model as they are not possible to configure anyway
                continue;
            }

            // spring-boot auto configuration does not support complex types
            // (unless they are enum, nested)
            // and if so then we should use a String type so spring-boot and its
            // tooling support that
            // as Camel will be able to convert the string value into a lookup
            // of the bean in the registry anyway
            // and therefore there is no problem, eg
            // camel.component.jdbc.data-source = myDataSource
            // where the type would have been javax.sql.DataSource
            boolean complex = isComplexType(option) && isBlank(option.getEnums());
            if (complex) {
                // force to use a string type
                type = "java.lang.String";
            }

            Property prop = javaClass.addProperty(type, option.getName());
            if (option.isDeprecated()) {
                prop.getField().addAnnotation(Deprecated.class);
                prop.getAccessor().addAnnotation(Deprecated.class);
                prop.getMutator().addAnnotation(Deprecated.class);
                // DeprecatedConfigurationProperty must be on getter when
                // deprecated
                prop.getAccessor().addAnnotation(DeprecatedConfigurationProperty.class);
            }
            if (!Strings.isNullOrEmpty(option.getDescription())) {
                String desc = option.getDescription();
                if (complex) {
                    if (!desc.endsWith(".")) {
                        desc = desc + ".";
                    }
                    desc = desc + " The option is a " + option.getJavaType() + " type.";
                }
                prop.getField().getJavaDoc().setFullText(desc);
            }
            if (!isBlank(defaultValue)) {
                if ("java.lang.String".equals(option.getJavaType())) {
                    prop.getField().setStringInitializer(defaultValue.toString());
                } else if ("long".equals(option.getJavaType()) || "java.lang.Long".equals(option.getJavaType())) {
                    // the value should be a Long number
                    String value = defaultValue + "L";
                    prop.getField().setLiteralInitializer(value);
                } else if ("integer".equals(option.getType()) || "java.lang.Integer".equals(option.getJavaType())
                        || "boolean".equals(option.getType()) || "java.lang.Boolean".equals(option.getJavaType())) {
                    prop.getField().setLiteralInitializer(defaultValue.toString());
                } else if (!isBlank(option.getEnums())) {
                    String enumShortName = type.substring(type.lastIndexOf(".") + 1);
                    prop.getField().setLiteralInitializer(enumShortName + "." + defaultValue);
                    javaClass.addImport(model.getJavaType());
                }
            }
        }

        String fileName = packageName.replaceAll("\\.", "\\/") + "/" + name + ".java";
        writeSourceIfChanged(javaClass, fileName, true);
    }