package com.jayway.jsonpath.internal.path;
import com.jayway.jsonpath.Configuration;
import com.jayway.jsonpath.Predicate;
import com.jayway.jsonpath.internal.Path;
import com.jayway.jsonpath.spi.mapper.MappingException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.util.HashMap;
public class PredicateContextImpl implements Predicate.PredicateContext {
private static final Logger logger = LoggerFactory.getLogger(PredicateContextImpl.class);
private final Object contextDocument;
private final Object rootDocument;
private final Configuration configuration;
private final HashMap<Path, Object> documentPathCache;
public PredicateContextImpl(Object contextDocument, Object rootDocument, Configuration configuration, HashMap<Path, Object> documentPathCache) {
this.contextDocument = contextDocument;
this.rootDocument = rootDocument;
this.configuration = configuration;
this.documentPathCache = documentPathCache;
}
public Object evaluate(Path path){
Object result;
if(path.isRootPath()){
if(documentPathCache.containsKey(path)){
logger.debug("Using cached result for root path: " + path.toString());
result = documentPathCache.get(path);
} else {
result = path.evaluate(rootDocument, rootDocument, configuration).getValue();
documentPathCache.put(path, result);
}
} else {
result = path.evaluate(contextDocument, rootDocument, configuration).getValue();
}
return result;
}
public HashMap<Path, Object> documentPathCache() {
return documentPathCache;
}
@Override
public Object item() {
return contextDocument;
}
@Override
public <T> T item(Class<T> clazz) throws MappingException {
return configuration().mappingProvider().map(contextDocument, clazz, configuration);
}
@Override
public Object root() {
return rootDocument;
}
@Override
public Configuration configuration() {
return configuration;
}
}