package org.springframework.boot.json;
import java.util.List;
import java.util.Map;
import java.util.concurrent.Callable;
import java.util.function.Function;
import org.springframework.util.ReflectionUtils;
public abstract class AbstractJsonParser implements JsonParser {
protected final Map<String, Object> parseMap(String json, Function<String, Map<String, Object>> parser) {
return trimParse(json, "{", parser);
}
protected final List<Object> parseList(String json, Function<String, List<Object>> parser) {
return trimParse(json, "[", parser);
}
protected final <T> T trimParse(String json, String prefix, Function<String, T> parser) {
String trimmed = (json != null) ? json.trim() : "";
if (trimmed.startsWith(prefix)) {
return parser.apply(trimmed);
}
throw new JsonParseException();
}
protected final <T> T tryParse(Callable<T> parser, Class<? extends Exception> check) {
try {
return parser.call();
}
catch (Exception ex) {
if (check.isAssignableFrom(ex.getClass())) {
throw new JsonParseException(ex);
}
ReflectionUtils.rethrowRuntimeException(ex);
throw new IllegalStateException(ex);
}
}
}