/**
* Copyright © 2010-2011 Nokia
*
* 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.github.restdriver.matchers;
import java.io.IOException;
import org.hamcrest.Description;
import org.hamcrest.Matcher;
import org.hamcrest.TypeSafeMatcher;
import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.github.restdriver.exception.RuntimeAssertionFailure;
/**
* A matcher for string which treats the string as a JsonNode.
*/
public class HasJsonWhich extends TypeSafeMatcher<String> {
private static final ObjectMapper MAPPER = new ObjectMapper();
private final Matcher<JsonNode> matcher;
public HasJsonWhich(Matcher<JsonNode> matcher) {
this.matcher = matcher;
}
@Override
public void describeTo(Description description) {
matcher.describeTo(description);
}
@Override
protected void describeMismatchSafely(String item, Description mismatchDescription) {
JsonNode node = createNode(item);
matcher.describeMismatch(node, mismatchDescription);
}
@Override
protected boolean matchesSafely(String item) {
return matcher.matches(createNode(item));
}
private static JsonNode createNode(String item) {
try {
return MAPPER.readTree(item);
} catch (IOException e) {
throw new RuntimeAssertionFailure("Failed to create JsonNode", e);
}
}
}