org.obm.push.minig.imap.impl.IMAPParsingTools.java Source code

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Here is the source code for org.obm.push.minig.imap.impl.IMAPParsingTools.java

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/* ***** BEGIN LICENSE BLOCK *****
 * 
 * Copyright (C) 2011-2014  Linagora
 *
 * This program is free software: you can redistribute it and/or 
 * modify it under the terms of the GNU Affero General Public License as 
 * published by the Free Software Foundation, either version 3 of the 
 * License, or (at your option) any later version, provided you comply 
 * with the Additional Terms applicable for OBM connector by Linagora 
 * pursuant to Section 7 of the GNU Affero General Public License, 
 * subsections (b), (c), and (e), pursuant to which you must notably (i) retain 
 * the Message sent thanks to OBM, Free Communication by Linagora? 
 * signature notice appended to any and all outbound messages 
 * (notably e-mail and meeting requests), (ii) retain all hypertext links between 
 * OBM and obm.org, as well as between Linagora and linagora.com, and (iii) refrain 
 * from infringing Linagora intellectual property rights over its trademarks 
 * and commercial brands. Other Additional Terms apply, 
 * see <http://www.linagora.com/licenses/> for more details. 
 *
 * This program is distributed in the hope that it will be useful, 
 * but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 
 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License 
 * for more details. 
 *
 * You should have received a copy of the GNU Affero General Public License 
 * and its applicable Additional Terms for OBM along with this program. If not, 
 * see <http://www.gnu.org/licenses/> for the GNU Affero General Public License version 3 
 * and <http://www.linagora.com/licenses/> for the Additional Terms applicable to 
 * OBM connectors. 
 * 
 * ***** END LICENSE BLOCK ***** */
package org.obm.push.minig.imap.impl;

import org.obm.push.minig.imap.mime.impl.ParenListParser;

import com.google.common.base.Charsets;
import com.google.common.base.Strings;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.Lists;

public class IMAPParsingTools {

    public static String getStringHasNumberForField(String fullPayload, String field) {
        String uidStartToken = field;
        int uidIdx = fullPayload.indexOf(uidStartToken);
        String content = fullPayload.substring(uidIdx + uidStartToken.length());
        return getNextNumber(content);
    }

    public static String getNextNumber(String content) {
        if (content == null) {
            return null;
        }

        ImmutableList<Character> chars = Lists.charactersOf(content);
        StringBuilder longAsString = new StringBuilder();
        for (Character c : chars) {
            if (Character.isDigit(c)) {
                longAsString.append(c);
            } else {
                break;
            }
        }
        return longAsString.toString();
    }

    public static String substringFromOpeningToClosingBracket(String content) {
        if (Strings.isNullOrEmpty(content)) {
            return null;
        }

        char openingChar = '(';
        int openingCharIndex = content.indexOf(openingChar);
        if (openingCharIndex != -1) {
            ParenListParser parenListParser = new ParenListParser();
            try {
                parenListParser.consumeToken(0, content.substring(openingCharIndex).getBytes(Charsets.US_ASCII));
                return '(' + new String(parenListParser.getLastReadToken(), Charsets.US_ASCII) + ')';
            } catch (IllegalArgumentException e) {
                return null;
            }
        }
        return null;
    }

}