/**
* DataCleaner (community edition)
* Copyright (C) 2014 Neopost - Customer Information Management
*
* This copyrighted material is made available to anyone wishing to use, modify,
* copy, or redistribute it subject to the terms and conditions of the GNU
* Lesser General Public License, as published by the Free Software Foundation.
*
* 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 Lesser General Public License
* for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this distribution; if not, write to:
* Free Software Foundation, Inc.
* 51 Franklin Street, Fifth Floor
* Boston, MA 02110-1301 USA
*/
package org.datacleaner.util;
import java.io.IOException;
import java.io.InputStream;
import java.util.HashMap;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Properties;
import org.apache.metamodel.util.Func;
import com.google.common.collect.Maps;
/**
* A utility function for reading properties as a {@link Map} of Strings from an
* {@link InputStream}.
*/
public class InputStreamToPropertiesMapFunc implements Func<InputStream, Map<String, String>> {
@Override
public Map<String, String> eval(final InputStream in) {
final Properties properties = new Properties();
try {
properties.load(in);
} catch (final IOException ex) {
throw new RuntimeException(ex);
}
final HashMap<String, String> map = Maps.newHashMapWithExpectedSize(properties.size());
for (final Entry<?, ?> e : properties.entrySet()) {
final String key = (String) e.getKey();
final String value = (String) e.getValue();
map.put(key, value);
}
return map;
}
}