org.wisdom.api.http.Request Maven / Gradle / Ivy
/*
* #%L
* Wisdom-Framework
* %%
* Copyright (C) 2013 - 2014 Wisdom Framework
* %%
* 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.
* #L%
*/
package org.wisdom.api.http;
import java.nio.charset.Charset;
import java.util.List;
import java.util.Map;
/**
* An HTTP request.
*/
public abstract class Request extends RequestHeader {
private String username = null;
/**
* The user name for this request, if defined.
* This is usually set by annotating your Action with @Authenticated.
*
* @return the username if any
*/
public String username() {
return username;
}
/**
* Defines the user name for this request.
*
* @param username the username
*/
public void setUsername(String username) {
this.username = username;
}
/**
* The Content-Type header field indicates the media type of the request
* body sent to the recipient. E.g. {@code Content-Type: text/html;
* charset=ISO-8859-4}
*
* @return the content type of the incoming request.
* @see http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html
*/
public abstract String contentType();
/**
* Retrieves the mime-type part of the content-type header. For instance on {@code Content-Type: text/html;
* charset=ISO-8859-4}, it retrieves {@code text/html}.
*
* @return the mime type of the content-type header
*/
public String contentMimeType() {
String ct = contentType();
if (ct != null) {
int index = ct.indexOf(";");
if (index != -1) {
return ct.substring(0, index);
} else {
return ct;
}
} else {
return null;
}
}
/**
* Retrieves the charset part of the content-type header. For instance on {@code Content-Type: text/html;
* charset=ISO-8859-4}, it retrieves {@code ISO-8859-4}.
*
* @return the charset of the content-type header, {@code null} if not set.
*/
public Charset contentCharset() {
String ct = contentType();
if (ct != null) {
int index = ct.indexOf("charset=");
if (index != -1) {
return Charset.forName(ct.substring(index + 8));
} else {
return null;
}
} else {
return null;
}
}
/**
* Returns the name of the HTTP method with which this
* request was made, for example, GET, POST, or PUT.
* Same as the value of the CGI variable REQUEST_METHOD.
*
* @return a String
* specifying the name
* of the method with which
* this request was made (eg GET, POST, PUT...)
*/
public abstract String method();
/**
* Get the parameter with the given key from the request. The parameter may
* either be a query parameter, or in the case of form submissions, may be a
* form parameter.
*
* When the parameter is multivalued, returns the first value.
*
* The parameter is decoded by default.
*
* @param name The key of the parameter
* @return The value, or null if no parameter was found.
* @see #parameterMultipleValues
*/
public abstract String parameter(String name);
/**
* Get the parameter with the given key from the request. The parameter may
* either be a query parameter, or in the case of form submissions, may be a
* form parameter.
*
* The parameter is decoded by default.
*
* @param name The key of the parameter
* @return The values, possibly an empty list.
*/
public abstract List parameterMultipleValues(String name);
/**
* Same like {@link #parameter(String)}, but returns given defaultValue
* instead of null in case parameter cannot be found.
*
* The parameter is decoded by default.
*
* @param name The name of the post or query parameter
* @param defaultValue A default value if parameter not found.
* @return The value of the parameter of the defaultValue if not found.
*/
public abstract String parameter(String name, String defaultValue);
/**
* Same like {@link #parameter(String)}, but converts the parameter to
* Integer if found.
*
* The parameter is decoded by default.
*
* @param name The name of the post or query parameter
* @return The value of the parameter or null if not found.
*/
public abstract Integer parameterAsInteger(String name);
/**
* Same like {@link #parameter(String, String)}, but converts the
* parameter to Integer if found.
*
* The parameter is decoded by default.
*
* @param name The name of the post or query parameter
* @param defaultValue A default value if parameter not found.
* @return The value of the parameter of the defaultValue if not found.
*/
public abstract Integer parameterAsInteger(String name, Integer defaultValue);
/**
* Same like {@link #parameter(String)}, but converts the parameter to
* Boolean if found.
*
* The parameter is decoded by default.
*
* @param name The name of the post or query parameter
* @return The value of the parameter or {@literal false} if not found.
*/
public abstract Boolean parameterAsBoolean(String name);
/**
* Same like {@link #parameter(String)}, but converts the parameter to
* Boolean if found.
*
* The parameter is decoded by default.
*
* @param name The name of the post or query parameter
* @param defaultValue A default value if parameter not found.
* @return The value of the parameter or the defaultValue if not found.
*/
public abstract Boolean parameterAsBoolean(String name, boolean defaultValue);
/**
* Get all the parameters from the request.
*
* @return The parameters
*/
public abstract Map> parameters();
/**
* Retrieves the data shared by all the entities participating to the request resolution (i.e. computation of the
* response). This method returns a live map, meaning that modification impacts all other participants. It can be
* used to let filters or interceptors passing objects to action methods or templates.
*
* @return the map storing the data. Unlike session or flash, these data are not stored in cookies,
* and are cleared once the response is sent back to the client.
*/
public abstract Map data();
}