001/**
002 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
003 *
004 * Copyright (c) 2006 Sun Microsystems Inc. All Rights Reserved
005 *
006 * The contents of this file are subject to the terms
007 * of the Common Development and Distribution License
008 * (the License). You may not use this file except in
009 * compliance with the License.
010 *
011 * You can obtain a copy of the License at
012 * https://opensso.dev.java.net/public/CDDLv1.0.html or
013 * opensso/legal/CDDLv1.0.txt
014 * See the License for the specific language governing
015 * permission and limitations under the License.
016 *
017 * When distributing Covered Code, include this CDDL
018 * Header Notice in each file and include the License file
019 * at opensso/legal/CDDLv1.0.txt.
020 * If applicable, add the following below the CDDL Header,
021 * with the fields enclosed by brackets [] replaced by
022 * your own identifying information:
023 * "Portions Copyrighted [year] [name of copyright owner]"
024 *
025 * $Id: ResponseProvider.java,v 1.5 2008/08/19 19:09:16 veiming Exp $
026 *
027 */
028
029
030
031package com.sun.identity.policy.interfaces;
032
033import com.sun.identity.policy.PolicyException;
034import com.sun.identity.policy.Syntax;
035import com.iplanet.sso.SSOToken;
036import com.iplanet.sso.SSOException;
037
038import java.util.List;
039import java.util.Locale;
040import java.util.Map;
041import java.util.Set;
042
043/**
044 * The class <code>ResponseProvider</code> defines an interface to allow 
045 * pluggable response providers into the OpenSSO framework. These 
046 * are used to provide policy response attributes. Policy response attributes 
047 * are different from <code>ActionDecision</code>. Policy response attributes 
048 * typically provide attribute values of user profile. User profile could 
049 * exist in any data store managed by Identity repository. However, reponse 
050 * attributes are not restricted to attributes from user profile. 
051 * Source of the attribute values is completely at the discretion of the 
052 * specific implementation of the <code>ResponseProvider</code>.
053 * <p>
054 * The response provider is initialized by calling its <code>initialize()
055 * </code> method.
056 * Its also configured by setting its properites by a call to 
057 * <code>setProperties()</code> method.
058 * <p>
059 * Response attribute names are not checked against schema of the service
060 * registered with OpenSSO. (<code>ActionDecision</code> attributes
061 * are checked against the schema of the service registered with
062 * OpenSSO).
063 *
064 * A Response Provider computes a <code>Map</code> of response attributes
065 * and their values based on the <code>SSOToken</code>, resource name and  
066 * environment <code>Map</code> passed in the method call 
067 * <code>getResponseDecision()</code>.
068 *
069 * Policy framework would make a call <code>getResponseDecision</code> from the 
070 * <code>ResponseProvider</code>(s) associated with a  policy only if the 
071 * policy is applicable to a request as determined by <code>SSOToken</code>, 
072 * <code>resource name</code>, <code>Subjects</code> and 
073 * <code>Conditions</code>.
074 * <p>
075 * The only out-of-the-box <code>ResponseProvider</code> implementation 
076 * provided with the Policy framework would be 
077 * <code>IDRepoResponseProvider</code>.
078 *
079 * All <code>ResponseProvider</code> implementations should have a public no 
080 * argument constructor.
081 * @supported.all.api
082 *
083 */
084public interface ResponseProvider extends Cloneable {
085
086    /** 
087     * Initialize the <code>ResponseProvider</code>
088     * @param configParams <code>Map</code> of the configurational information
089     * @exception PolicyException if an error occured during 
090     * initialization of the instance
091     */
092
093    public void initialize(Map configParams) throws PolicyException;
094
095
096    /**
097     * Returns a list of property names for the Response provider.
098     *
099     * @return list of property names
100     */
101    public List getPropertyNames();
102
103    /**
104     * Returns the syntax for a property name
105     * @see com.sun.identity.policy.Syntax
106     *
107     * @param property property name
108     *
109     * @return <code>Syntax<code> for the property name
110     */
111    public Syntax getPropertySyntax(String property);
112
113
114    /**
115     * Gets the display name for the property name.
116     * The <code>locale</code> variable could be used by the plugin to
117     * customize the display name for the given locale.
118     * The <code>locale</code> variable could be <code>null</code>, in which
119     * case the plugin must use the default locale.
120     *
121     * @param property property name
122     * @param locale locale for which the property name must be customized
123     * @return display name for the property name.
124     * @throws PolicyException
125     */
126    public String getDisplayName(String property, Locale locale)
127        throws PolicyException;
128
129    /**
130     * Returns a set of valid values given the property name. This method
131     * is called if the property <code>Syntax</code> is either the 
132     * <code>SINGLE_CHOICE</code> or <code>MULTIPLE_CHOICE</code>.
133     *
134     * @param property <code>String</code> representing property name
135     * @return Set of valid values for the property.
136     * @exception PolicyException if unable to get the <code>Syntax</code>.
137     */
138    public Set getValidValues(String property) throws 
139        PolicyException;
140
141    /** Sets the properties of the responseProvider plugin.
142     *  This influences the response attribute-value Map that would be
143     *  computed by a call to method <code>getResponseDecision(Map)</code>
144     *  These attribute-value pairs are encapsulated in 
145     *  <code>ResponseAttribute</code> element tag which is a child of the 
146     *  <code>PolicyDecision</code> element in the PolicyResponse xml
147     *  if the policy is applicable to the user for the resource, subject and
148     *  conditions defined.
149     *  @param properties the properties of the <code>ResponseProvider</code>
150     *         Keys of the properties have to be String.
151     *         Value corresponding to each key have to be a <code>Set</code> 
152     *         of String elements. Each implementation of ResponseProvider 
153     *         could add further restrictions on the keys and values of this 
154     *         map.
155     *  @throws PolicyException for any abnormal condition
156     */
157    public void setProperties(Map properties) throws PolicyException;
158
159    /** Gets the properties of the response provider.
160     *  @return properties of the response provider.
161     *  @see #setProperties
162     */
163    public Map getProperties();
164
165    /**
166     * Gets the response attributes computed by this ResponseProvider object,
167     * based on the <code>SSOToken</code> and <code>Map</code> of 
168     * environment parameters.
169     *
170     * @param token single-sign-on token of the user
171     *
172     * @param env request specific environment map of key/value pairs
173     * @return  a <code>Map</code> of response attributes.
174     *          Keys of the Map are attribute names of type <code>static</code>
175     *          and <code>dynamic</code>.
176     *          Value is a <code>Set</code> of response attribute values 
177     *          (<code>String</code>).
178     *
179     * @throws PolicyException if the decision could not be computed
180     * @throws SSOException <code>token is not valid
181     *
182     */
183    public Map getResponseDecision(SSOToken token,  
184        Map env) throws PolicyException, SSOException;
185
186    /**
187     * Returns a copy of this object.
188     *
189     * @return an <code>Object</code> which is a copy of this object
190     */
191    public Object clone();
192
193}