Examples with RestBindingAdvice org.apache.camel.processor.RestBindingAdvice used on opensource projects

Example 1 with RestBindingAdvice

use of org.apache.camel.processor.RestBindingAdvice in project camel by apache.

the class RestBindingDefinition method createRestBindingAdvice.

public RestBindingAdvice createRestBindingAdvice(RouteContext routeContext) throws Exception {
    CamelContext context = routeContext.getCamelContext();
    RestConfiguration config = context.getRestConfiguration(component, true);
    // these options can be overridden per rest verb
    String mode = config.getBindingMode().name();
    if (bindingMode != null) {
        mode = bindingMode.name();
    }
    boolean cors = config.isEnableCORS();
    if (enableCORS != null) {
        cors = enableCORS;
    }
    boolean skip = config.isSkipBindingOnErrorCode();
    if (skipBindingOnErrorCode != null) {
        skip = skipBindingOnErrorCode;
    }
    // cors headers
    Map<String, String> corsHeaders = config.getCorsHeaders();
    if (mode == null || "off".equals(mode)) {
        // binding mode is off, so create a off mode binding processor
        return new RestBindingAdvice(context, null, null, null, null, consumes, produces, mode, skip, cors, corsHeaders, defaultValues);
    }
    // setup json data format
    String name = config.getJsonDataFormat();
    if (name != null) {
        // must only be a name, not refer to an existing instance
        Object instance = context.getRegistry().lookupByName(name);
        if (instance != null) {
            throw new IllegalArgumentException("JsonDataFormat name: " + name + " must not be an existing bean instance from the registry");
        }
    } else {
        name = "json-jackson";
    }
    // this will create a new instance as the name was not already pre-created
    DataFormat json = context.resolveDataFormat(name);
    DataFormat outJson = context.resolveDataFormat(name);
    // is json binding required?
    if (mode.contains("json") && json == null) {
        throw new IllegalArgumentException("JSon DataFormat " + name + " not found.");
    }
    if (json != null) {
        Class<?> clazz = null;
        if (type != null) {
            String typeName = type.endsWith("[]") ? type.substring(0, type.length() - 2) : type;
            clazz = context.getClassResolver().resolveMandatoryClass(typeName);
        }
        if (clazz != null) {
            IntrospectionSupport.setProperty(context.getTypeConverter(), json, "unmarshalType", clazz);
            IntrospectionSupport.setProperty(context.getTypeConverter(), json, "useList", type.endsWith("[]"));
        }
        setAdditionalConfiguration(config, context, json, "json.in.");
        Class<?> outClazz = null;
        if (outType != null) {
            String typeName = outType.endsWith("[]") ? outType.substring(0, outType.length() - 2) : outType;
            outClazz = context.getClassResolver().resolveMandatoryClass(typeName);
        }
        if (outClazz != null) {
            IntrospectionSupport.setProperty(context.getTypeConverter(), outJson, "unmarshalType", outClazz);
            IntrospectionSupport.setProperty(context.getTypeConverter(), outJson, "useList", outType.endsWith("[]"));
        }
        setAdditionalConfiguration(config, context, outJson, "json.out.");
    }
    // setup xml data format
    name = config.getXmlDataFormat();
    if (name != null) {
        // must only be a name, not refer to an existing instance
        Object instance = context.getRegistry().lookupByName(name);
        if (instance != null) {
            throw new IllegalArgumentException("XmlDataFormat name: " + name + " must not be an existing bean instance from the registry");
        }
    } else {
        name = "jaxb";
    }
    // this will create a new instance as the name was not already pre-created
    DataFormat jaxb = context.resolveDataFormat(name);
    DataFormat outJaxb = context.resolveDataFormat(name);
    // is xml binding required?
    if (mode.contains("xml") && jaxb == null) {
        throw new IllegalArgumentException("XML DataFormat " + name + " not found.");
    }
    if (jaxb != null) {
        Class<?> clazz = null;
        if (type != null) {
            String typeName = type.endsWith("[]") ? type.substring(0, type.length() - 2) : type;
            clazz = context.getClassResolver().resolveMandatoryClass(typeName);
        }
        if (clazz != null) {
            JAXBContext jc = JAXBContext.newInstance(clazz);
            IntrospectionSupport.setProperty(context.getTypeConverter(), jaxb, "context", jc);
        }
        setAdditionalConfiguration(config, context, jaxb, "xml.in.");
        Class<?> outClazz = null;
        if (outType != null) {
            String typeName = outType.endsWith("[]") ? outType.substring(0, outType.length() - 2) : outType;
            outClazz = context.getClassResolver().resolveMandatoryClass(typeName);
        }
        if (outClazz != null) {
            JAXBContext jc = JAXBContext.newInstance(outClazz);
            IntrospectionSupport.setProperty(context.getTypeConverter(), outJaxb, "context", jc);
        } else if (clazz != null) {
            // fallback and use the context from the input
            JAXBContext jc = JAXBContext.newInstance(clazz);
            IntrospectionSupport.setProperty(context.getTypeConverter(), outJaxb, "context", jc);
        }
        setAdditionalConfiguration(config, context, outJaxb, "xml.out.");
    }
    return new RestBindingAdvice(context, json, jaxb, outJson, outJaxb, consumes, produces, mode, skip, cors, corsHeaders, defaultValues);
}