org.apache.commons.vfs.UserAuthenticationData.java Source code

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Here is the source code for org.apache.commons.vfs.UserAuthenticationData.java

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/*
 * 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.commons.vfs;

import java.util.Map;
import java.util.TreeMap;
import java.util.Iterator;

/**
 * Container for various authentication data
 */
public class UserAuthenticationData {
    public static class Type implements Comparable {
        private final String type;

        public Type(String type) {
            this.type = type;
        }

        public boolean equals(Object o) {
            if (this == o) {
                return true;
            }
            if (o == null || getClass() != o.getClass()) {
                return false;
            }

            Type type1 = (Type) o;

            if (type != null ? !type.equals(type1.type) : type1.type != null) {
                return false;
            }

            return true;
        }

        public int compareTo(Object o) {
            Type t = (Type) o;

            return type.compareTo(t.type);
        }
    }

    public static final Type USERNAME = new Type("username");
    public static final Type PASSWORD = new Type("password");
    public static final Type DOMAIN = new Type("domain");

    private Map authenticationData = new TreeMap();

    public UserAuthenticationData() {
    }

    /**
     * set a data to this collection
     */
    public void setData(Type type, char[] data) {
        authenticationData.put(type, data);
    }

    /**
     * get a data from the collection
     */
    public char[] getData(Type type) {
        return (char[]) authenticationData.get(type);
    }

    /**
     * deleted all data stored within this authenticator
     */
    public void cleanup() {
        // step 1: nullify character buffers
        Iterator iterAuthenticationData = authenticationData.values().iterator();
        while (iterAuthenticationData.hasNext()) {
            char[] data = (char[]) iterAuthenticationData.next();
            if (data == null || data.length < 0) {
                continue;
            }

            for (int i = 0; i < data.length; i++) {
                data[i] = 0;
            }
        }
        // step 2: allow data itself to gc
        authenticationData.clear();
    }
}