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Scalable machine learning libraries
/**
* 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.
*/
package org.apache.mahout.common;
import java.io.IOException;
import java.util.Map;
import com.google.common.collect.Maps;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.io.DefaultStringifier;
import org.apache.hadoop.util.GenericsUtil;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class Parameters {
private static final Logger log = LoggerFactory.getLogger(Parameters.class);
private Map params = Maps.newHashMap();
public Parameters() {
}
public Parameters(String serializedString) throws IOException {
this(parseParams(serializedString));
}
protected Parameters(Map params) {
this.params = params;
}
public String get(String key) {
return params.get(key);
}
public String get(String key, String defaultValue) {
String ret = params.get(key);
return ret == null ? defaultValue : ret;
}
public void set(String key, String value) {
params.put(key, value);
}
public int getInt(String key, int defaultValue) {
String ret = params.get(key);
return ret == null ? defaultValue : Integer.parseInt(ret);
}
@Override
public String toString() {
Configuration conf = new Configuration();
conf.set("io.serializations",
"org.apache.hadoop.io.serializer.JavaSerialization,"
+ "org.apache.hadoop.io.serializer.WritableSerialization");
DefaultStringifier
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