asterisk-java-cvs

[Stefan R. <sr...@us...>]

Update of /cvsroot/asterisk-java/asterisk-java/src/java/net/sf/asterisk/fastagi
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv31610/src/java/net/sf/asterisk/fastagi

Added Files:
	ReplyBuilderImpl.java ReplyBuilder.java 
Log Message:
Added ReplyBuilder

--- NEW FILE: ReplyBuilderImpl.java ---
/*
 * Copyright  2004-2005 Stefan Reuter
 *
 *  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 net.sf.asterisk.fastagi;

import java.util.List;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

import net.sf.asterisk.fastagi.reply.AGIReply;

/**
 * Default implementation of the ReplyBuilder interface.
 * 
 * @author srt
 * @version $Id: ReplyBuilderImpl.java,v 1.1 2005/03/09 20:31:35 srt Exp $
 */
public class ReplyBuilderImpl implements ReplyBuilder
{
    private static final Pattern STATUS_PATTERN = Pattern
            .compile("^(\\d{3})[ -]");
    private static final Pattern RESULT_PATTERN = Pattern
            .compile("^200 result=(\\d+) ");
    private static final Pattern SYNOPSIS_PATTERN = Pattern
            .compile("^\\s*Usage:\\s*(.*)\\s*$");
    private static final String END_OF_PROPER_USAGE = "520 End of proper usage.";

    public AGIReply buildReply(List lines)
    {
        String firstLine;
        AGIReply reply;
        Matcher statusMatcher;
        Matcher resultMatcher;

        if (lines.size() == 0)
        {
            return null;
        }

        reply = new AGIReply();

        firstLine = (String) lines.get(0);

        statusMatcher = STATUS_PATTERN.matcher(firstLine);
        if (statusMatcher.find())
        {
            reply.setStatus(Integer.parseInt(statusMatcher.group(1)));
        }

        resultMatcher = RESULT_PATTERN.matcher(firstLine);
        if (resultMatcher.find())
        {
            reply.setResult(Integer.parseInt(resultMatcher.group(1)));
        }

        if (reply.getStatus() == AGIReply.SC_INVALID_COMMAND_SYNTAX)
        {
            StringBuffer usageSB;

            if (lines.size() > 1)
            {
                String secondLine;
                Matcher synopsisMatcher;

                secondLine = (String) lines.get(1);
                synopsisMatcher = SYNOPSIS_PATTERN.matcher(secondLine);
                if (synopsisMatcher.find())
                {
                    reply.setSynopsis(synopsisMatcher.group(1));
                }
            }

            usageSB = new StringBuffer();
            for (int i = 2; i < lines.size(); i++)
            {
                String line;

                line = (String) lines.get(i);
                if (END_OF_PROPER_USAGE.equals(line))
                {
                    break;
                }

                usageSB.append(line.trim());
                usageSB.append(" ");
            }
            reply.setUsage(usageSB.toString().trim());
        }

        return reply;
    }
}

--- NEW FILE: ReplyBuilder.java ---
/*
 * Copyright  2004-2005 Stefan Reuter
 *
 *  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 net.sf.asterisk.fastagi;

import java.util.List;

import net.sf.asterisk.fastagi.reply.AGIReply;

/**
 * Transforms a List of lines to instances of AGIReply.
 * 
 * @author srt
 * @version $Id: ReplyBuilder.java,v 1.1 2005/03/09 20:31:35 srt Exp $
 */
public interface ReplyBuilder
{
    /**
     * Transforms a List of lines read from Asterisk to an appropriate AGIReply.
     * 
     * @param lines the lines read from Asterisk
     * @return the appropriate AGIReply
     */
    AGIReply buildReply(List lines);
}