org.apache.struts2.rest

## Class RestActionMapper

- java.lang.Object
- - org.apache.struts2.dispatcher.mapper.DefaultActionMapper
  - - org.apache.struts2.rest.RestActionMapper

- All Implemented Interfaces:
    ActionMapper

      public class RestActionMapper
      extends DefaultActionMapper

  This Restful action mapper enforces Ruby-On-Rails Rest-style mappings. If the method is not specified (via '!' or 'method:' prefix), the method is "guessed" at using ReST-style conventions that examine the URL and the HTTP method. Special care has been given to ensure this mapper works correctly with the codebehind plugin so that XML configuration is unnecessary.

  This mapper supports the following parameters:

  - `struts.mapper.idParameterName` - If set, this value will be the name of the parameter under which the id is stored. The id will then be removed from the action name. Whether or not the method is specified, the mapper will try to truncate the identifier from the url and store it as a parameter.
  - `struts.mapper.indexMethodName` - The method name to call for a GET request with no id parameter. Defaults to 'index'.
  - `struts.mapper.getMethodName` - The method name to call for a GET request with an id parameter. Defaults to 'show'.
  - `struts.mapper.postMethodName` - The method name to call for a POST request with no id parameter. Defaults to 'create'.
  - `struts.mapper.putMethodName` - The method name to call for a PUT request with an id parameter. Defaults to 'update'.
  - `struts.mapper.deleteMethodName` - The method name to call for a DELETE request with an id parameter. Defaults to 'destroy'.
  - `struts.mapper.editMethodName` - The method name to call for a GET request with an id parameter and the 'edit' view specified. Defaults to 'edit'.
  - `struts.mapper.newMethodName` - The method name to call for a GET request with no id parameter and the 'new' view specified. Defaults to 'editNew'.

  The following URL's will invoke its methods:

  - `GET: /movies => method="index"`
  - `GET: /movies/Thrillers => method="show", id="Thrillers"`
  - `GET: /movies/Thrillers;edit => method="edit", id="Thrillers"`
  - `GET: /movies/Thrillers/edit => method="edit", id="Thrillers"`
  - `GET: /movies/new => method="editNew"`
  - `POST: /movies => method="create"`
  - `PUT: /movies/Thrillers => method="update", id="Thrillers"`
  - `DELETE: /movies/Thrillers => method="destroy", id="Thrillers"`

  To simulate the HTTP methods PUT and DELETE, since they aren't supported by HTML, the HTTP parameter "_method" will be used.

- - ### Field Summary

    Fields
    Modifier and Type | Field and Description
    --- | ---
    `static String` | `HTTP_METHOD_PARAM`
    `protected static org.apache.logging.log4j.Logger` | `LOG`

    - ### Fields inherited from class org.apache.struts2.dispatcher.mapper.DefaultActionMapper

      `ACTION_PREFIX, allowedActionNames, allowedMethodNames, allowedNamespaceNames, allowSlashesInActionNames, alwaysSelectFullNamespace, container, defaultActionName, defaultMethodName, defaultNamespaceName, extensions, METHOD_PREFIX, prefixTrie`

  - ### Constructor Summary

    Constructors
    Constructor and Description
    `RestActionMapper()`

  - ### Method Summary

    All Methods Instance Methods Concrete Methods
    Modifier and Type | Method and Description
    --- | ---
    `String` | `getIdParameterName()`
    `ActionMapping` | `getMapping(javax.servlet.http.HttpServletRequest request, ConfigurationManager configManager)`
    `protected boolean` | `isDelete(javax.servlet.http.HttpServletRequest request)`
    `protected boolean` | `isExpectContinue(javax.servlet.http.HttpServletRequest request)`
    `protected boolean` | `isGet(javax.servlet.http.HttpServletRequest request)`
    `protected boolean` | `isOptions(javax.servlet.http.HttpServletRequest request)`
    `protected boolean` | `isPost(javax.servlet.http.HttpServletRequest request)`
    `protected boolean` | `isPut(javax.servlet.http.HttpServletRequest request)`
    `protected void` | `parseNameAndNamespace(String uri, ActionMapping mapping, ConfigurationManager configManager)` Parses the name and namespace from the uri.
    `void` | `setAllowDynamicMethodCalls(String allowDynamicMethodCalls)`
    `void` | `setDeleteMethodName(String deleteMethodName)`
    `void` | `setEditMethodName(String editMethodName)`
    `void` | `setGetMethodName(String getMethodName)`
    `void` | `setIdParameterName(String idParameterName)`
    `void` | `setIndexMethodName(String indexMethodName)`
    `void` | `setNewMethodName(String newMethodName)`
    `void` | `setOptionsMethodName(String optionsMethodName)`
    `void` | `setPostContinueMethodName(String postContinueMethodName)`
    `void` | `setPostMethodName(String postMethodName)`
    `void` | `setPutContinueMethodName(String putContinueMethodName)`
    `void` | `setPutMethodName(String putMethodName)`

    - ### Methods inherited from class org.apache.struts2.dispatcher.mapper.DefaultActionMapper

      `addParameterAction, cleanupActionName, cleanupMethodName, cleanupNamespaceName, dropExtension, extractMethodName, getDefaultExtension, getMappingFromActionName, getUriFromActionMapping, handleDynamicMethod, handleExtension, handleName, handleNamespace, handleParams, handleSpecialParameters, isSlashesInActionNames, lookupExtension, parseActionName, setAllowActionPrefix, setAllowedActionNames, setAllowedMethodNames, setAllowedNamespaceNames, setAlwaysSelectFullNamespace, setContainer, setDefaultActionName, setDefaultMethodName, setDefaultNamespaceName, setExtensions, setSlashesInActionNames`

    - ### Methods inherited from class java.lang.Object

      `clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

- - ### Field Detail

    - #### LOG

          protected static final org.apache.logging.log4j.Logger LOG

    - #### HTTP_METHOD_PARAM

          public static final String HTTP_METHOD_PARAM

      See Also:
        Constant Field Values

  - ### Constructor Detail

    - #### RestActionMapper

          public RestActionMapper()

  - ### Method Detail

    - #### getIdParameterName

          public String getIdParameterName()

    - #### setIdParameterName

          public void setIdParameterName(String idParameterName)

    - #### setIndexMethodName

          public void setIndexMethodName(String indexMethodName)

    - #### setGetMethodName

          public void setGetMethodName(String getMethodName)

    - #### setPostMethodName

          public void setPostMethodName(String postMethodName)

    - #### setEditMethodName

          public void setEditMethodName(String editMethodName)

    - #### setNewMethodName

          public void setNewMethodName(String newMethodName)

    - #### setDeleteMethodName

          public void setDeleteMethodName(String deleteMethodName)

    - #### setPutMethodName

          public void setPutMethodName(String putMethodName)

    - #### setOptionsMethodName

          public void setOptionsMethodName(String optionsMethodName)

    - #### setPostContinueMethodName

          public void setPostContinueMethodName(String postContinueMethodName)

    - #### setPutContinueMethodName

          public void setPutContinueMethodName(String putContinueMethodName)

    - #### setAllowDynamicMethodCalls

          public void setAllowDynamicMethodCalls(String allowDynamicMethodCalls)

      Overrides:
        `setAllowDynamicMethodCalls` in class `DefaultActionMapper`

    - #### getMapping

          public ActionMapping getMapping(javax.servlet.http.HttpServletRequest request,
                                          ConfigurationManager configManager)

      Specified by:
        `getMapping` in interface `ActionMapper`
      Overrides:
        `getMapping` in class `DefaultActionMapper`

    - #### parseNameAndNamespace

          protected void parseNameAndNamespace(String uri,
                                               ActionMapping mapping,
                                               ConfigurationManager configManager)

      Parses the name and namespace from the uri. Uses the configured package namespaces to determine the name and id parameter, to be parsed later.
      Overrides:
        `parseNameAndNamespace` in class `DefaultActionMapper`
      Parameters:
        `uri` - The uri
        `mapping` - The action mapping to populate

    - #### isGet

          protected boolean isGet(javax.servlet.http.HttpServletRequest request)

    - #### isPost

          protected boolean isPost(javax.servlet.http.HttpServletRequest request)

    - #### isPut

          protected boolean isPut(javax.servlet.http.HttpServletRequest request)

    - #### isDelete

          protected boolean isDelete(javax.servlet.http.HttpServletRequest request)

    - #### isOptions

          protected boolean isOptions(javax.servlet.http.HttpServletRequest request)

    - #### isExpectContinue

          protected boolean isExpectContinue(javax.servlet.http.HttpServletRequest request)

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