Examples of com.opensymphony.xwork2.interceptor.ChainingInterceptor

Package com.opensymphony.xwork2.interceptor

Examples of com.opensymphony.xwork2.interceptor.ChainingInterceptor

com.opensymphony.xwork2.ognl.OgnlValueStack
An interceptor that copies all the properties of every object in the value stack to the currently executing object, except for any object that implements {@link Unchainable}. A collection of optional includes and excludes may be provided to control how and which parameters are copied. Only includes or excludes may be specified. Specifying both results in undefined behavior. See the javadocs for {@link ReflectionProvider#copy(Object,Object,java.util.Map,java.util.Collection,java.util.Collection)} for more information.

Note: It is important to remember that this interceptor does nothing if there are no objects already on the stack.
This means two things:
One, you can safely apply it to all your actions without any worry of adverse affects.
Two, it is up to you to ensure an object exists in the stack prior to invoking this action. The most typical way this is done is through the use of the chain result type, which combines with this interceptor to make up the action chaining feature.
Note: By default Errors, Field errors and Message aren't copied during chaining, to change the behaviour you can specify the below three constants in struts.properties or struts.xml:
- struts.xwork.chaining.copyErrors - set to true to copy Action Errors
- struts.xwork.chaining.copyFieldErrors - set to true to copy Field Errors
- struts.xwork.chaining.copyMessages - set to true to copy Action Messages
Example:
```
 <constant name="struts.xwork.chaining.copyErrors" value="true"/> 
```
Note: By default actionErrors and actionMessages are excluded when copping object's properties.
Interceptor parameters:
- excludes (optional) - the list of parameter names to exclude from copying (all others will be included).
- includes (optional) - the list of parameter names to include when copying (all others will be excluded).
Extending the interceptor:
There are no known extension points to this interceptor.
Example code:
```
   <action name="someAction" class="com.examples.SomeAction"> <interceptor-ref name="basicStack"/> <result name="success" type="chain">otherAction</result> </action> 
 <action name="otherAction" class="com.examples.OtherAction"> <interceptor-ref name="chain"/> <interceptor-ref name="basicStack"/> <result name="success">good_result.ftl</result> </action> 
  
```
@author mrdon @author tm_jee ( tm_jee(at)yahoo.co.uk ) @see com.opensymphony.xwork2.ActionChainResult


        // Initialize ActionContext
        ConfigurationManager configurationManager = new ConfigurationManager();
        configurationManager.addContainerProvider(new XWorkConfigurationProvider());
        Configuration config = configurationManager.getConfiguration();
        Container container = config.getContainer();


        ValueStack stack = container.getInstance(ValueStackFactory.class).createValueStack();
        stack.getContext().put(ActionContext.CONTAINER, container);
        ActionContext.setContext(new ActionContext(stack.getContext()));


        ActionContext.getContext().setSession(new HashMap<String, Object>());

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        StringBuilder link = new StringBuilder();


        boolean changedScheme = false;


        // FIXME: temporary hack until class is made a properly injected bean
        Container cont = ActionContext.getContext().getContainer();
        int httpPort = Integer.parseInt(cont.getInstance(String.class, StrutsConstants.STRUTS_URL_HTTP_PORT));
        int httpsPort = Integer.parseInt(cont.getInstance(String.class, StrutsConstants.STRUTS_URL_HTTPS_PORT));


        // only append scheme if it is different to the current scheme *OR*
        // if we explicity want it to be appended by having forceAddSchemeHostAndPort = true
        if (forceAddSchemeHostAndPort) {
            String reqScheme = request.getScheme();

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        assertEquals(123456, foo.getNumber());
    }




    public void testSetList() throws Exception {
        ChainingInterceptor foo = new ChainingInterceptor();
        ChainingInterceptor foo2 = new ChainingInterceptor();


        OgnlContext context = (OgnlContext) Ognl.createDefaultContext(null);
        SimpleNode expression = (SimpleNode) Ognl.parseExpression("{'a','ruby','b','tom'}");

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        assertEquals(123456, foo.getNumber());
    }




    public void testSetList() throws Exception {
        ChainingInterceptor foo = new ChainingInterceptor();
        ChainingInterceptor foo2 = new ChainingInterceptor();


        OgnlContext context = (OgnlContext) Ognl.createDefaultContext(null);
        SimpleNode expression = (SimpleNode) Ognl.parseExpression("{'a','ruby','b','tom'}");

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        assertEquals(123456, foo.getNumber());
    }




    public void testSetList() throws Exception {
        ChainingInterceptor foo = new ChainingInterceptor();
        ChainingInterceptor foo2 = new ChainingInterceptor();


        OgnlContext context = (OgnlContext) Ognl.createDefaultContext(null);
        SimpleNode expression = (SimpleNode) Ognl.parseExpression("{'a','ruby','b','tom'}");

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        assertEquals(123456, foo.getNumber());
    }




    public void testSetList() throws Exception {
        ChainingInterceptor foo = new ChainingInterceptor();
        ChainingInterceptor foo2 = new ChainingInterceptor();


        OgnlContext context = (OgnlContext) ognlUtil.createDefaultContext(null);
        SimpleNode expression = (SimpleNode) Ognl.parseExpression("{'a','ruby','b','tom'}");

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        assertEquals(123456, foo.getNumber());
    }




    public void testSetList() throws Exception {
        ChainingInterceptor foo = new ChainingInterceptor();
        ChainingInterceptor foo2 = new ChainingInterceptor();


        OgnlContext context = (OgnlContext) Ognl.createDefaultContext(null);
        SimpleNode expression = (SimpleNode) Ognl.parseExpression("{'a','ruby','b','tom'}");

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    public <T> T getInstance(Class<T> type) {
      try {
        T obj = type.newInstance();
        if (obj instanceof ObjectFactory) {
          ((ObjectFactory) obj).setReflectionProvider(new OgnlReflectionProvider() {


            @Override
            public void setProperties(Map<String, String> properties, Object o) {
            }

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    if (messageKey == null || StringUtils.isBlank(messageKey) && StringUtils.isNotBlank(defaultValue)) {
      message = StringUtils.capitalize(defaultValue);
    } 
    // the titleKey attribute is used
    else {
      OgnlValueStack stack = (OgnlValueStack) TagUtils.getStack(pageContext);
      
      for (Object o : stack.getRoot()) {
        if (o instanceof TextProvider) {
          TextProvider tp = (TextProvider) o;
          message = tp.getText(messageKey, UNDEFINED_KEY + messageKey + UNDEFINED_KEY);
          break;
        }

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   */
  @Override
  public Locale resolveLocale(HttpServletRequest request) {


    Locale result = null;
    OgnlValueStack stack = (OgnlValueStack) ActionContext.getContext().getValueStack();


    for (Object o : stack.getRoot()) {
      if (o instanceof LocaleProvider) {
        LocaleProvider lp = (LocaleProvider) o;
        result = lp.getLocale();
        break;
      }

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