/* 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 org.camunda.bpm.qa.performance.engine.util;
import java.io.File;
import org.camunda.bpm.qa.performance.engine.framework.PerfTestException;
import org.codehaus.jackson.map.ObjectMapper;
/**
* @author Daniel Meyer
*
*/
public class JsonUtil {
private static ObjectMapper mapper;
public static void writeObjectToFile(String filename, Object object) {
final ObjectMapper mapper = getMapper();
try {
File resultFile = new File(filename);
if(resultFile.exists()) {
resultFile.delete();
}
resultFile.createNewFile();
mapper.writerWithDefaultPrettyPrinter().writeValue(resultFile, object);
} catch(Exception e) {
throw new PerfTestException("Cannot write object to file "+filename, e);
}
}
public static <T> T readObjectFromFile(String filename, Class<T> type) {
final ObjectMapper mapper = getMapper();
try {
return mapper.readValue(new File(filename), type);
} catch(Exception e) {
throw new PerfTestException("Cannot read object from file "+filename, e);
}
}
protected static ObjectMapper getMapper() {
if(mapper == null) {
mapper = new ObjectMapper();
}
return mapper;
}
}