com.aspectran.core.activity.Translet Maven / Gradle / Ivy
/*
* Copyright (c) 2008-2022 The Aspectran Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.aspectran.core.activity;
import com.aspectran.core.activity.process.result.ProcessResult;
import com.aspectran.core.activity.request.FileParameter;
import com.aspectran.core.activity.response.Response;
import com.aspectran.core.activity.response.transform.CustomTransformer;
import com.aspectran.core.adapter.ApplicationAdapter;
import com.aspectran.core.adapter.RequestAdapter;
import com.aspectran.core.adapter.ResponseAdapter;
import com.aspectran.core.adapter.SessionAdapter;
import com.aspectran.core.context.env.Environment;
import com.aspectran.core.context.rule.DispatchRule;
import com.aspectran.core.context.rule.ForwardRule;
import com.aspectran.core.context.rule.RedirectRule;
import com.aspectran.core.context.rule.TransformRule;
import com.aspectran.core.context.rule.type.MethodType;
import com.aspectran.core.support.i18n.message.NoSuchMessageException;
import java.util.Collection;
import java.util.Locale;
import java.util.Map;
/**
* Translet provides the parsed request data to the user and
* processes the user's response command.
*
* Created: 2008. 7. 5. AM 12:35:44
*/
public interface Translet {
/**
* Returns the translet name.
* @return the translet name
*/
String getTransletName();
/**
* Returns the request name for this {@code Translet}.
* @return the request name
*/
String getRequestName();
/**
* Gets the request http method.
* @return the request method
*/
MethodType getRequestMethod();
/**
* Returns a description of this {@code Translet}.
* @return a description of this {@code Translet}
*/
String getDescription();
/**
* Returns the environment of the current activity context.
* @return the environment
*/
Environment getEnvironment();
/**
* Gets the application adapter.
* @return the application adapter
*/
ApplicationAdapter getApplicationAdapter();
/**
* Gets the session adapter.
* @return the session adapter
*/
SessionAdapter getSessionAdapter();
/**
* Gets the request adapter.
* @return the request adapter
*/
RequestAdapter getRequestAdapter();
/**
* Gets the response adapter.
* @return the response adapter
*/
ResponseAdapter getResponseAdapter();
/**
* Returns the adaptee object to provide session information.
* @param the type of the session adaptee
* @return the session adaptee object
*/
V getSessionAdaptee();
/**
* Returns the adaptee object to provide request information.
* @param the type of the request adaptee
* @return the request adaptee object
*/
V getRequestAdaptee();
/**
* Returns the adaptee object to provide response information.
* @param the type of the response adaptee
* @return the response adaptee object
*/
V getResponseAdaptee();
/**
* Returns the intended request encoding.
* @return the intended request encoding
*/
String getIntendedRequestEncoding();
/**
* Returns the intended response encoding.
* @return the intended response encoding
*/
String getIntendedResponseEncoding();
/**
* Returns the process result.
* @return the process result
*/
ProcessResult getProcessResult();
/**
* Returns a action result for the specified action id from the process result,
* or {@code null} if the action does not exist.
* @param actionId the specified action id
* @return the action result
*/
Object getProcessResult(String actionId);
/**
* Sets the process result.
* @param processResult the new process result
*/
void setProcessResult(ProcessResult processResult);
/**
* Returns an Activity Data containing the activity result data.
* @return the activity data
*/
ActivityData getActivityData();
/**
* Gets the setting value in the translet scope.
* @param the type of the value
* @param settingName the setting name
* @return the setting value
*/
V getSetting(String settingName);
/**
* Returns the value of the property on environment.
* @param the type of the value
* @param name the given property name
* @return the value of the property on environment
*/
V getProperty(String name);
/**
* Returns the value of an activity's request parameter as a {@code String},
* or {@code null} if the parameter does not exist.
* @param name a {@code String} specifying the name of the parameter
* @return a {@code String} representing the
* single value of the parameter
* @see #getParameterValues
*/
String getParameter(String name);
/**
* Returns an array of {@code String} objects containing all
* of the values the given activity's request parameter has,
* or {@code null} if the parameter does not exist.
* @param name a {@code String} specifying the name of the parameter
* @return an array of {@code String} objects
* containing the parameter's values
* @see #getParameter
*/
String[] getParameterValues(String name);
/**
* Returns a {@code Collection} of {@code String} objects containing
* the names of the parameters contained in this request.
* If the request has no parameters, the method returns an empty {@code Collection}.
* @return an {@code Collection} of {@code String} objects, each {@code String}
* containing the name of a request parameter;
* or an empty {@code Collection} if the request has no parameters
*/
Collection getParameterNames();
/**
* Sets the value to the parameter with the given name.
* @param name a {@code String} specifying the name of the parameter
* @param value a {@code String} representing the
* single value of the parameter
* @see #setParameter(String, String[])
*/
void setParameter(String name, String value);
/**
* Sets the value to the parameter with the given name.
* @param name a {@code String} specifying the name of the parameter
* @param values an array of {@code String} objects
* containing the parameter's values
* @see #setParameter
*/
void setParameter(String name, String[] values);
/**
* Return an mutable Map of the request parameters,
* with parameter names as map keys and parameter values as map values.
* If the parameter value type is the {@code String} then map value will be of type {@code String}.
* If the parameter value type is the {@code String} array then map value will be of type {@code String} array.
* @return the mutable parameter map
* @since 1.4.0
*/
Map getAllParameters();
/**
* Extracts all the parameters and fills in the specified map.
* @param targetParameters the target parameter map to be filled
* @since 2.0.0
*/
void extractParameters(Map targetParameters);
/**
* Returns a {@code FileParameter} object as a given activity's request parameter name,
* or {@code null} if the parameter does not exist.
* @param name a {@code String} specifying the name of the file parameter
* @return a {@code FileParameter} representing the
* single value of the parameter
* @see #getFileParameterValues
*/
FileParameter getFileParameter(String name);
/**
* Returns an array of {@code FileParameter} objects containing all
* of the values the given activity's request parameter has,
* or {@code null} if the parameter does not exist.
* @param name a {@code String} specifying the name of the file parameter
* @return an array of {@code FileParameter} objects
* containing the parameter's values
* @see #getFileParameter
*/
FileParameter[] getFileParameterValues(String name);
/**
* Returns a {@code Collection} of {@code String} objects containing
* the names of the file parameters contained in this request.
* If the request has no parameters, the method returns an empty {@code Collection}.
* @return an {@code Collection} of {@code String} objects, each {@code String}
* containing the name of a file parameter;
* or an empty {@code Collection} if the request has no file parameters
*/
Collection getFileParameterNames();
/**
* Sets the {@code FileParameter} object to the file parameter with the given name.
* @param name a {@code String} specifying the name of the file parameter
* @param fileParameter a {@code FileParameter} representing the
* single value of the parameter
* @see #setFileParameter(String, FileParameter[])
*/
void setFileParameter(String name, FileParameter fileParameter);
/**
* Sets the value to the file parameter with the given name.
* @param name a {@code String} specifying the name of the file parameter
* @param fileParameters an array of {@code FileParameter} objects
* containing the file parameter's values
* @see #setFileParameter
*/
void setFileParameter(String name, FileParameter[] fileParameters);
/**
* Removes the file parameter with the specified name.
* @param name a {@code String} specifying the name of the file parameter
*/
void removeFileParameter(String name);
/**
* Returns the value of the named attribute as a given type,
* or {@code null} if no attribute of the given name exists.
* @param the result type of the bean
* @param name a {@code String} specifying the name of the attribute
* @return an {@code Object} containing the value of the attribute,
* or {@code null} if the attribute does not exist
*/
V getAttribute(String name);
/**
* Stores an attribute in this request.
* @param name specifying the name of the attribute
* @param value the {@code Object} to be stored
*/
void setAttribute(String name, Object value);
/**
* Returns a {@code Collection} containing the
* names of the attributes available to this request.
* This method returns an empty {@code Collection}
* if the request has no attributes available to it.
* @return the attribute names
*/
Collection getAttributeNames();
/**
* Removes an attribute from this request.
* @param name a {@code String} specifying the name of the attribute to remove
*/
void removeAttribute(String name);
/**
* Transformation according to a given rule, and transmits this response.
* @param transformRule the transformation rule
*/
void transform(TransformRule transformRule);
void transform(CustomTransformer transformer);
/**
* Dispatch to other resources as the given name.
* @param name the dispatch name
*/
void dispatch(String name);
/**
* Dispatch to other resources as the given name.
* @param name the dispatch name
* @param dispatcherName the id or class name of the view dispatcher bean
*/
void dispatch(String name, String dispatcherName);
/**
* Dispatch to other resources as the given rule.
* @param dispatchRule the dispatch rule
*/
void dispatch(DispatchRule dispatchRule);
/**
* Forward to the specified translet immediately.
* @param transletName the translet name of the target to be forwarded
*/
void forward(String transletName);
/**
* Forward according to a given rule.
* @param forwardRule the forward rule
*/
void forward(ForwardRule forwardRule);
/**
* Redirect a client to a new target resource.
* If an intended redirect rule exists, that may be used.
* @param path the redirect path
*/
void redirect(String path);
/**
* Redirect to the other target resource.
* @param path the redirect path
* @param parameters the parameters
*/
void redirect(String path, Map parameters);
/**
* Redirect a client according to the given rule.
* @param redirectRule the redirect rule
*/
void redirect(RedirectRule redirectRule);
/**
* Respond immediately, and the remaining jobs will be canceled.
* @param response the response
*/
void response(Response response);
/**
* Respond immediately, and the remaining jobs will be canceled.
*/
void response();
/**
* Returns the originally declared response.
* @return the declared response
* @since 5.2.0
*/
Response getDeclaredResponse();
/**
* Returns whether the response is reserved.
* @return true, if the response is reserved
*/
boolean isResponseReserved();
/**
* Returns whether the exception was thrown.
* @return true, if is exception raised
*/
boolean isExceptionRaised();
/**
* Returns the raised exception instance.
* @return the raised exception instance
*/
Throwable getRaisedException();
/**
* Returns the innermost one of the chained (wrapped) exceptions.
* @return the innermost one of the chained (wrapped) exceptions
*/
Throwable getRootCauseOfRaisedException();
/**
* Remove the raised exception.
*/
void removeRaisedException();
/**
* Return whether the given profile is active.
* If active profiles are empty whether the profile should be active by default.
* @param profiles the profiles
* @return {@code true} if profile is active, otherwise {@code false}
*/
boolean acceptsProfiles(String... profiles);
/**
* Gets the aspect advice bean.
* @param the result type of the advice
* @param aspectId the aspect id
* @return the aspect advice bean
*/
V getAspectAdviceBean(String aspectId);
/**
* Gets the before advice result.
* @param the result type of the before advice
* @param aspectId the aspect id
* @return the before advice result
*/
V getBeforeAdviceResult(String aspectId);
/**
* Gets the after advice result.
* @param the result type of the after advice
* @param aspectId the aspect id
* @return the after advice result
*/
V getAfterAdviceResult(String aspectId);
/**
* Gets the around advice result.
* @param the result type of the around advice
* @param aspectId the aspect id
* @return the around advice result
*/
V getAroundAdviceResult(String aspectId);
/**
* Gets the finally advice result.
* @param the result type of the finally advice
* @param aspectId the aspect id
* @return the finally advice result
*/
V getFinallyAdviceResult(String aspectId);
/**
* Returns whether the translet name has tokens for extracting parameters or attributes.
* @return true if the translet name has tokens for extracting parameters or attributes
*/
boolean hasPathVariables();
/**
* Return an instance of the bean that matches the given id.
* @param the result type of the bean
* @param id the id of the bean to retrieve
* @return an instance of the bean
*/
V getBean(String id);
/**
* Return an instance of the bean that matches the given object type.
* @param the result type of the bean
* @param type the type the bean must match; can be an interface or superclass.
* {@code null} is disallowed.
* @return an instance of the bean
* @since 1.3.1
*/
V getBean(Class type);
/**
* Return an instance of the bean that matches the given object type.
* @param the result type of the bean
* @param type type the bean must match; can be an interface or superclass.
* {@code null} is allowed.
* @param id the id of the bean to retrieve
* @return an instance of the bean
* @since 2.0.0
*/
V getBean(Class type, String id);
/**
* Return whether a bean with the specified id is present.
* @param id the id of the bean to query
* @return whether a bean with the specified id is present
*/
boolean containsBean(String id);
/**
* Return whether a bean with the specified object type is present.
* @param type the object type of the bean to query
* @return whether a bean with the specified type is present
*/
boolean containsBean(Class type);
/**
* Returns whether the bean corresponding to the specified object type and ID exists.
* @param type the object type of the bean to query
* @param id the id of the bean to query
* @return whether a bean with the specified type is present
*/
boolean containsBean(Class type, String id);
/**
* Try to resolve the message. Treat as an error if the message can't be found.
* @param code the code to lookup up, such as 'calculator.noRateSet'
* @return the resolved message
* @throws NoSuchMessageException if the message wasn't found
* @see java.text.MessageFormat
*/
String getMessage(String code) throws NoSuchMessageException;
/**
* Try to resolve the message. Treat as an error if the message can't be found.
* @param code the code to lookup up, such as 'calculator.noRateSet'
* @param args Array of arguments that will be filled in for params within
* the message (params look like "{0}", "{1,date}", "{2,time}" within a message),
* or {@code null} if none.
* @return the resolved message
* @throws NoSuchMessageException if the message wasn't found
* @see java.text.MessageFormat
*/
String getMessage(String code, Object[] args) throws NoSuchMessageException;
/**
* Try to resolve the message. Return default message if no message was found.
* @param code the code to lookup up, such as 'calculator.noRateSet'. Users of
* this class are encouraged to base message names on the relevant fully
* qualified class name, thus avoiding conflict and ensuring maximum clarity.
* @param defaultMessage String to return if the lookup fails
* @return the resolved message if the lookup was successful;
* otherwise the default message passed as a parameter
* @see java.text.MessageFormat
*/
String getMessage(String code, String defaultMessage);
/**
* Try to resolve the message. Return default message if no message was found.
* @param code the code to lookup up, such as 'calculator.noRateSet'. Users of
* this class are encouraged to base message names on the relevant fully
* qualified class name, thus avoiding conflict and ensuring maximum clarity.
* @param args array of arguments that will be filled in for params within
* the message (params look like "{0}", "{1,date}", "{2,time}" within a message),
* or {@code null} if none.
* @param defaultMessage String to return if the lookup fails
* @return the resolved message if the lookup was successful;
* otherwise the default message passed as a parameter
* @see java.text.MessageFormat
*/
String getMessage(String code, Object[] args, String defaultMessage);
/**
* Try to resolve the message. Treat as an error if the message can't be found.
* @param code the code to lookup up, such as 'calculator.noRateSet'
* @param locale the Locale in which to do the lookup
* @return the resolved message
* @throws NoSuchMessageException if the message wasn't found
* @see java.text.MessageFormat
*/
String getMessage(String code, Locale locale) throws NoSuchMessageException;
/**
* Try to resolve the message. Treat as an error if the message can't be found.
* @param code the code to lookup up, such as 'calculator.noRateSet'
* @param args Array of arguments that will be filled in for params within
* the message (params look like "{0}", "{1,date}", "{2,time}" within a message),
* or {@code null} if none.
* @param locale the Locale in which to do the lookup
* @return the resolved message
* @throws NoSuchMessageException if the message wasn't found
* @see java.text.MessageFormat
*/
String getMessage(String code, Object[] args, Locale locale) throws NoSuchMessageException;
/**
* Try to resolve the message. Return default message if no message was found.
* @param code the code to lookup up, such as 'calculator.noRateSet'. Users of
* this class are encouraged to base message names on the relevant fully
* qualified class name, thus avoiding conflict and ensuring maximum clarity.
* @param defaultMessage String to return if the lookup fails
* @param locale the Locale in which to do the lookup
* @return the resolved message if the lookup was successful;
* otherwise the default message passed as a parameter
* @see java.text.MessageFormat
*/
String getMessage(String code, String defaultMessage, Locale locale);
/**
* Try to resolve the message. Return default message if no message was found.
* @param code the code to lookup up, such as 'calculator.noRateSet'. Users of
* this class are encouraged to base message names on the relevant fully
* qualified class name, thus avoiding conflict and ensuring maximum clarity.
* @param args array of arguments that will be filled in for params within
* the message (params look like "{0}", "{1,date}", "{2,time}" within a message),
* or {@code null} if none.
* @param defaultMessage String to return if the lookup fails
* @param locale the Locale in which to do the lookup
* @return the resolved message if the lookup was successful;
* otherwise the default message passed as a parameter
* @see java.text.MessageFormat
*/
String getMessage(String code, Object[] args, String defaultMessage, Locale locale);
}