com.evolveum.liferay.usercreatehook.password.StringPolicyUtils.java Source code

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Here is the source code for com.evolveum.liferay.usercreatehook.password.StringPolicyUtils.java

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/*
 * Copyright (c) 2011 Evolveum
 *
 * 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.evolveum.liferay.usercreatehook.password;

import java.util.ArrayList;
import java.util.HashSet;

import javax.xml.namespace.QName;

import org.apache.commons.lang.text.StrBuilder;

import com.evolveum.midpoint.xml.ns._public.common.common_3.CharacterClassType;
import com.evolveum.midpoint.xml.ns._public.common.common_3.LimitationsType;
import com.evolveum.midpoint.xml.ns._public.common.common_3.StringPolicyType;

/**
 * @author mamut
 */
public class StringPolicyUtils {

    private static final String ASCII7_CHARS = " !\"#$%&'()*+,-.01234567890:;<=>?"
            + "@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_" + "`abcdefghijklmnopqrstuvwxyz{|}~";

    public static StringPolicyType normalize(StringPolicyType sp) {
        if (null == sp) {
            throw new IllegalArgumentException("Providide string policy cannot be null");
        }

        if (null == sp.getLimitations()) {
            LimitationsType sl = new LimitationsType();
            sl.setCheckAgainstDictionary(false);
            sl.setCheckPattern("");
            sl.setMaxLength(-1);
            sl.setMinLength(0);
            sl.setMinUniqueChars(0);
            sp.setLimitations(sl);
        }

        // Add default char class
        if (null == sp.getCharacterClass()) {
            CharacterClassType cct = new CharacterClassType();
            cct.setValue(ASCII7_CHARS);
            sp.setCharacterClass(cct);
        }

        return sp;
    }

    /**
     * Prepare usable list of strings for generator
     */

    public static String collectCharacterClass(CharacterClassType cc, QName ref) {
        StrBuilder l = new StrBuilder();
        if (null == cc) {
            throw new IllegalArgumentException("Character class cannot be null");
        }

        if (null != cc.getValue() && (null == ref || ref.equals(cc.getName()))) {
            l.append(cc.getValue());
        } else if (null != cc.getCharacterClass() && !cc.getCharacterClass().isEmpty()) {
            // Process all sub lists
            for (CharacterClassType subClass : cc.getCharacterClass()) {
                // If we found requested name or no name defined
                if (null == ref || ref.equals(cc.getName())) {
                    l.append(collectCharacterClass(subClass, null));
                } else {
                    l.append(collectCharacterClass(subClass, ref));
                }
            }
        }
        // Remove duplicity in return;
        HashSet<String> h = new HashSet<String>();
        for (String s : l.toString().split("")) {
            h.add(s);
        }
        return new StrBuilder().appendAll(h).toString();
    }

    /**
     * Convert string to array
     * 
     * @param in
     * @return ArrayList
     */
    public static ArrayList<String> stringTokenizer(String in) {
        ArrayList<String> l = new ArrayList<String>();
        String a[] = in.split("");
        // Add all to list , STrat at 1 because a[0] contains ""
        for (int i = 1; i < a.length; i++) {
            l.add(a[i]);
        }
        return l;
    }
}