/**
* 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 storm.kafka;
import backtype.storm.spout.Scheme;
import backtype.storm.tuple.Fields;
import backtype.storm.tuple.Values;
import java.io.UnsupportedEncodingException;
import java.util.List;
public class StringScheme implements Scheme {
public static final String STRING_SCHEME_KEY = "str";
public List<Object> deserialize(byte[] bytes) {
return new Values(deserializeString(bytes));
}
public static String deserializeString(byte[] string) {
try {
return new String(string, "UTF-8");
} catch (UnsupportedEncodingException e) {
throw new RuntimeException(e);
}
}
public Fields getOutputFields() {
return new Fields(STRING_SCHEME_KEY);
}
}