package org.apache.maven.wagon.providers.ssh.knownhost;
/*
* 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.
*/
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.StringReader;
import java.util.HashSet;
import java.util.Set;
import org.codehaus.plexus.util.IOUtil;
import org.codehaus.plexus.util.StringOutputStream;
import org.codehaus.plexus.util.StringUtils;
/**
* Provides known hosts from a file
*
* @author Juan F. Codagnone
* @since Sep 12, 2005
*/
public class StreamKnownHostsProvider
extends AbstractKnownHostsProvider
{
public StreamKnownHostsProvider( InputStream stream )
throws IOException
{
try
{
StringOutputStream stringOutputStream = new StringOutputStream();
IOUtil.copy( stream, stringOutputStream );
this.contents = stringOutputStream.toString();
this.knownHosts = this.loadKnownHosts( this.contents );
}
finally
{
IOUtil.close( stream );
}
}
protected Set<KnownHostEntry> loadKnownHosts( String contents )
throws IOException
{
Set<KnownHostEntry> hosts = new HashSet<KnownHostEntry>();
BufferedReader br = new BufferedReader( new StringReader( contents ) );
String line = null;
do
{
line = br.readLine();
if ( line != null )
{
String tokens[] = StringUtils.split( line );
if ( tokens.length == 3 )
{
hosts.add( new KnownHostEntry( tokens[0], tokens[1], tokens[2] ) );
}
}
}
while ( line != null );
return hosts;
}
}