/*
* 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.stanbol.entityhub.indexing.core.source;
import java.util.Map;
import org.apache.stanbol.entityhub.indexing.core.EntityScoreProvider;
import org.apache.stanbol.entityhub.servicesapi.model.Representation;
/**
* Implementation of an {@link EntityScoreProvider} that parsed the same value
* for all entities. The default value is '1' but it can be configured by using
* {@link #PARAM_SCORE}("{@value #PARAM_SCORE}").
*
* @author Rupert Westenthaler
*
*/
public class StaticEntityScoreProvider implements EntityScoreProvider {
public static final String PARAM_SCORE = "score";
public static final Float DEFAULT_SCORE = Float.valueOf(1f);
private Float score = DEFAULT_SCORE;
public StaticEntityScoreProvider() {
this(null);
}
public StaticEntityScoreProvider(Float score){
setScore(score);
}
/**
* @param score
*/
private void setScore(Float score) {
if(score == null){
this.score = DEFAULT_SCORE;
} else if (score <= 0){
throw new IllegalArgumentException("The parsed Score MUST NOT be <= 0!");
} else {
this.score = score;
}
}
@Override
public boolean needsData() {
return false;
}
@Override
public Float process(String id) {
return score;
}
@Override
public Float process(Representation entity) {
return score;
}
@Override
public void close() {
}
@Override
public void initialise() {
}
@Override
public boolean needsInitialisation() {
return false;
}
@Override
public void setConfiguration(Map<String,Object> config) {
Object value = config.get(PARAM_SCORE);
if(value != null && !value.toString().isEmpty()){
try {
setScore(Float.valueOf(value.toString()));
} catch (NumberFormatException e) {
throw new IllegalArgumentException(String.format(
"Unable to parse score from value {}",value),e);
}
}
}
}