sandbox/maven-scm-provider-cvsjava/src/main/java/org/apache/maven/scm/provider/cvslib/cvsjava/command/changelog/CvsJavaChangeLogCommand.java

package org.apache.maven.scm.provider.cvslib.cvsjava.command.changelog;

/*
 * Copyright 2001-2006 The Apache Software Foundation.
 *
 * 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.
 */

import org.apache.maven.scm.ScmException;
import org.apache.maven.scm.command.changelog.ChangeLogScmResult;
import org.apache.maven.scm.command.changelog.ChangeLogSet;
import org.apache.maven.scm.provider.cvslib.command.changelog.AbstractCvsChangeLogCommand;
import org.apache.maven.scm.provider.cvslib.command.changelog.CvsChangeLogConsumer;
import org.apache.maven.scm.provider.cvslib.cvsjava.util.CvsConnection;
import org.apache.maven.scm.provider.cvslib.cvsjava.util.CvsLogListener;
import org.codehaus.plexus.util.cli.Commandline;

import java.io.BufferedReader;
import java.io.ByteArrayInputStream;
import java.io.InputStreamReader;
import java.util.Date;

/**
 * @author <a href="mailto:evenisse@apache.org">Emmanuel Venisse</a>
 * @version $Id$
 */
public class CvsJavaChangeLogCommand
    extends AbstractCvsChangeLogCommand
{
    protected ChangeLogScmResult executeCvsCommand( Commandline cl, Date startDate, Date endDate, String datePattern )
        throws ScmException
    {
        CvsLogListener logListener = new CvsLogListener();

        CvsChangeLogConsumer consumer = new CvsChangeLogConsumer( getLogger(), datePattern );

        try
        {
            boolean isSuccess = CvsConnection.processCommand( cl.getArguments(), cl.getWorkingDirectory().getAbsolutePath(), logListener,
                                          getLogger() );

            if ( !isSuccess)
            {
                return new ChangeLogScmResult( cl.toString(), "The cvs command failed.", logListener.getStderr().toString(),
                                               false );
            }
            BufferedReader stream = new BufferedReader(
                new InputStreamReader( new ByteArrayInputStream( logListener.getStdout().toString().getBytes() ) ) );

            String line;

            while ( ( line = stream.readLine() ) != null )
            {
                consumer.consumeLine( line );
            }
        }
        catch ( Exception e )
        {
            e.printStackTrace( );
            return new ChangeLogScmResult( cl.toString(), "The cvs command failed.", logListener.getStdout().toString(),
                                           false );
        }

        return new ChangeLogScmResult( cl.toString(),
                                       new ChangeLogSet( consumer.getModifications(), startDate, endDate ) );
    }
}