OAuthProblemException.java

/**
 *       Copyright 2010 Newcastle University
 *
 *          http://research.ncl.ac.uk/smart/
 *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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 org.apache.amber.oauth2.common.exception;

import java.util.HashMap;
import java.util.Map;

import org.apache.amber.oauth2.common.utils.OAuthUtils;

/**
 * @author Maciej Machulak (m.p.machulak@ncl.ac.uk)
 * @author Lukasz Moren (lukasz.moren@ncl.ac.uk)
 * @author Aad van Moorsel (aad.vanmoorsel@ncl.ac.uk)
 */
public final class OAuthProblemException extends Exception {

    private String error;
    private String description;
    private String uri;
    private String state;
    private String scope;
    private String redirectUri;

    private Map<String, String> parameters = new HashMap<String, String>();

    private OAuthProblemException(String error) {
        this(error, "");
    }

    private OAuthProblemException(String error, String description) {
        super(error + " " + description);
        this.description = description;
        this.error = error;
    }


    public static OAuthProblemException error(String error) {
        return new OAuthProblemException(error);
    }

    public static OAuthProblemException error(String error, String description) {
        return new OAuthProblemException(error, description);
    }

    public OAuthProblemException description(String description) {
        this.description = description;
        return this;
    }

    public OAuthProblemException uri(String uri) {
        this.uri = uri;
        return this;
    }

    public OAuthProblemException state(String state) {
        this.state = state;
        return this;
    }

    public OAuthProblemException scope(String scope) {
        this.scope = scope;
        return this;
    }

    public OAuthProblemException setParameter(String name, String value) {
        parameters.put(name, value);
        return this;
    }

    public String getError() {
        return error;
    }

    public String getDescription() {
        return description;
    }

    public String getUri() {
        return uri;
    }

    public String getState() {
        return state;
    }

    public String getScope() {
        return scope;
    }

    public String get(String name) {
        return parameters.get(name);
    }

    public Map<String, String> getParameters() {
        return parameters;
    }

    public String getRedirectUri() {
        return redirectUri;
    }

    public void setRedirectUri(String redirectUri) {
        this.redirectUri = redirectUri;
    }

    @Override
    public String getMessage() {
        StringBuffer b = new StringBuffer();
        if (!OAuthUtils.isEmpty(error)) {
            b.append(error);
        }

        if (!OAuthUtils.isEmpty(description)) {
            b.append(", ").append(description);
        }


        if (!OAuthUtils.isEmpty(uri)) {
            b.append(", ").append(uri);
        }


        if (!OAuthUtils.isEmpty(state)) {
            b.append(", ").append(state);
        }

        if (!OAuthUtils.isEmpty(scope)) {
            b.append(", ").append(scope);
        }

        return b.toString();
    }

    @Override
    public String toString() {
        return "OAuthProblemException{"
            + "description='" + description + '\''
            + ", error='" + error + '\''
            + ", uri='" + uri + '\''
            + ", state='" + state + '\''
            + ", scope='" + scope + '\''
            + '}';
    }
}