com.evanzeimet.queryinfo.QueryInfoTestUtils.java Source code

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Here is the source code for com.evanzeimet.queryinfo.QueryInfoTestUtils.java

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package com.evanzeimet.queryinfo;

/*
 * #%L
 * queryinfo-common
 * $Id:$
 * $HeadURL:$
 * %%
 * Copyright (C) 2015 Evan Zeimet
 * %%
 * 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.
 * #L%
 */

import java.io.File;
import java.io.IOException;
import java.lang.reflect.Type;
import java.net.URL;

import org.apache.commons.io.FileUtils;

import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.core.util.DefaultPrettyPrinter;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.ObjectWriter;

public class QueryInfoTestUtils {

    public static String createActualJson(Object actual) throws JsonProcessingException {
        String json = stringify(actual);
        return dosToUnix(json);
    }

    public static ObjectMapper createObjectMapper() {
        return new QueryInfoUtils().createObjectMapper();
    }

    @SuppressWarnings("deprecation")
    public static ObjectWriter createObjectWriter() {
        ObjectMapper objectMapper = createObjectMapper();

        DefaultPrettyPrinter prettyPrinter = new DefaultPrettyPrinter();
        prettyPrinter.indentArraysWith(new DefaultPrettyPrinter.Lf2SpacesIndenter());

        return objectMapper.writer(prettyPrinter);
    }

    public static String dosToUnix(String rawContents) {
        String result;

        if (rawContents == null) {
            result = null;
        } else {
            result = rawContents.replaceAll("\\r\\n", "\n");
        }

        return result;
    }

    public static String getFormattedJson(Class<?> clazz, String filename) throws IOException, QueryInfoException {
        URL url = clazz.getResource(filename);

        if (url == null) {
            String message = String.format("Resource not found at [%s]", filename);
            throw new QueryInfoException(message);
        }

        File file = new File(url.getPath());
        String rawContents = FileUtils.readFileToString(file);

        return dosToUnix(rawContents);
    }

    public static <T> T objectify(String json, Class<T> clazz) throws QueryInfoException {
        return new QueryInfoUtils().objectify(json, clazz);
    }

    public static <T> T objectify(String json, Type typeOfT) throws QueryInfoException {
        return new QueryInfoUtils().objectify(json, typeOfT);
    }

    public static String stringify(Object object) {
        String result;
        ObjectWriter writer = createObjectWriter();

        try {
            result = writer.writeValueAsString(object);
        } catch (JsonProcessingException e) {
            throw new QueryInfoRuntimeException("Could not stringify", e);
        }

        return result;
    }
}