/*
* Copyright 2011 the original author or authors.
* 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.
*/
package com.jayway.jsonpath.internal.token;
import com.jayway.jsonpath.Configuration;
import com.jayway.jsonpath.InvalidPathException;
import com.jayway.jsonpath.Predicate;
import com.jayway.jsonpath.internal.PathRef;
import java.util.Collection;
import static java.lang.String.format;
import static java.util.Arrays.asList;
/**
*
*/
public class PredicatePathToken extends PathToken {
private static final String[] FRAGMENTS = {
"[?]",
"[?,?]",
"[?,?,?]",
"[?,?,?,?]",
"[?,?,?,?,?]"
};
private final Collection<Predicate> predicates;
public PredicatePathToken(Predicate filter) {
this.predicates = asList(filter);
}
public PredicatePathToken(Collection<Predicate> predicates) {
this.predicates = predicates;
}
@Override
public void evaluate(String currentPath, PathRef ref, Object model, EvaluationContextImpl ctx) {
if (ctx.jsonProvider().isMap(model)) {
if (accept(model, ctx.rootDocument(), ctx.configuration(), ctx)) {
PathRef op = ctx.forUpdate() ? ref : PathRef.NO_OP;
if (isLeaf()) {
ctx.addResult(currentPath, op, model);
} else {
next().evaluate(currentPath, op, model, ctx);
}
}
} else if (ctx.jsonProvider().isArray(model)){
int idx = 0;
Iterable<?> objects = ctx.jsonProvider().toIterable(model);
for (Object idxModel : objects) {
if (accept(idxModel, ctx.rootDocument(), ctx.configuration(), ctx)) {
handleArrayIndex(idx, currentPath, model, ctx);
}
idx++;
}
} else {
throw new InvalidPathException(format("Filter: %s can not be applied to primitives. Current context is: %s", toString(), model));
}
}
public boolean accept(final Object obj, final Object root, final Configuration configuration, EvaluationContextImpl evaluationContext) {
Predicate.PredicateContext ctx = new PredicateContextImpl(obj, root, configuration, evaluationContext.documentEvalCache());
for (Predicate predicate : predicates) {
if (!predicate.apply (ctx)) {
return false;
}
}
return true;
}
@Override
public String getPathFragment() {
return FRAGMENTS[predicates.size() - 1];
}
@Override
boolean isTokenDefinite() {
return false;
}
}