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Protempa Framework is the core of Protempa.
/*
* #%L
* Protempa Framework
* %%
* Copyright (C) 2012 - 2013 Emory University
* %%
* Licensed 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.
* #L%
*/
package org.protempa;
import org.apache.commons.collections4.map.ReferenceMap;
import java.io.Serializable;
import java.util.Map;
/**
*
* @author Andrew Post
*/
public class DefaultSourceId implements SourceId, Serializable {
private static final long serialVersionUID = -8057854346978674580L;
private static final Map CACHE = new ReferenceMap<>();
public static DefaultSourceId getInstance(String sourceIdStr) {
if (sourceIdStr == null) {
throw new IllegalArgumentException("sourceIdStr cannot be null");
}
DefaultSourceId result;
synchronized (CACHE) {
result = CACHE.get(sourceIdStr);
if (result == null) {
result = new DefaultSourceId(sourceIdStr);
CACHE.put(sourceIdStr, result);
}
}
return result;
}
private final String sourceIdStr;
private DefaultSourceId(String sourceIdStr) {
this.sourceIdStr = sourceIdStr;
}
@Override
public String getStringRepresentation() {
return this.sourceIdStr;
}
@Override
public DefaultSourceIdBuilder asBuilder() {
DefaultSourceIdBuilder builder = new DefaultSourceIdBuilder();
builder.setSourceIdStr(this.sourceIdStr);
return builder;
}
}