这个类是一个单例。我不太擅长线程安全。这个类是线程安全的吗?省略了一些方法,但它们只会在一个线程中使用。不过,此处列出的方法将同时从多个线程访问。
public class TermsDto {
private final static MapSplitter mapSplitter = Splitter
.on(',').trimResults().omitEmptyStrings()
.withKeyValueSeparator(":");
private volatile double factorForOthers = 4;
private volatile Map<String, Double> factorForTermName =
new HashMap<String, Double>();
public void setFactorForOthers(double factorForOthers) {
this.factorForOthers = factorForOthers;
}
public void setFactorForTermNameMapping(String mapping) {
HashMap<String, Double> tempFactorForTermName =
new HashMap<String, Double>();
for (Map.Entry<String, String> entry :
mapSplitter.split(mapping).entrySet()) {
double factor = Double.parseDouble(entry.getValue());
tempFactorForTermName.put(entry.getKey(), factor);
}
factorForTermName = tempFactorForTermName;
}
}