/*******************************************************************************
* Copyright (c) 2013 GigaSpaces Technologies Ltd. All rights reserved
*
* 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.cloudifysource.esc.driver.provisioning.privateEc2.parser;
import java.io.File;
import java.io.InputStream;
import org.codehaus.jackson.map.DeserializationConfig.Feature;
import org.codehaus.jackson.map.ObjectMapper;
/**
* Utility class to parse JSONF.
*
* @author victor
* @since 2.7.0
*
*/
public final class ParserUtils {
private ParserUtils() {
}
/**
* This method deserializes a json inputstream into the given object.
*
* @param clazz
* The class for deserialization.
* @param jsonStream
* The json inputstream
* @param <T>
* The converting type for json.
* @return The constructed JSON deserialization.
*
* @throws PrivateEc2ParserException
* If a problem occurs during the mapping.
*/
public static <T> T mapJson(final Class<T> clazz, final InputStream jsonStream) throws PrivateEc2ParserException {
if (jsonStream == null) {
return null;
}
final ObjectMapper mapper = new ObjectMapper();
mapper.configure(Feature.USE_ANNOTATIONS, true);
mapper.configure(Feature.FAIL_ON_UNKNOWN_PROPERTIES, false);
T tokenResponse = null;
try {
tokenResponse = mapper.readValue(jsonStream, clazz);
} catch (Exception e) {
throw new PrivateEc2ParserException(e);
}
return tokenResponse;
}
/**
* This method deserializes a json inputstream into the given object.
*
* @param clazz
* The class for deserialization.
* @param jsonString
* The json in string format
* @param <T>
* The converting type for json.
* @return The constructed JSON deserialization.
*
* @throws PrivateEc2ParserException
* If a problem occurs during the mapping.
*/
public static <T> T mapJson(final Class<T> clazz, final String jsonString) throws PrivateEc2ParserException {
if (jsonString == null) {
return null;
}
final ObjectMapper mapper = new ObjectMapper();
mapper.configure(Feature.USE_ANNOTATIONS, true);
mapper.configure(Feature.FAIL_ON_UNKNOWN_PROPERTIES, false);
T tokenResponse = null;
try {
tokenResponse = mapper.readValue(jsonString, clazz);
} catch (Exception e) {
throw new PrivateEc2ParserException(e);
}
return tokenResponse;
}
/**
* This method deserializes a json inputstream into the given object.
*
* @param clazz
* The class for deserialization.
* @param file
* The json file
* @param <T>
* The converting type for json.
* @return The constructed JSON deserialization.
*
* @throws PrivateEc2ParserException
* If a problem occurs during the mapping.
*/
public static <T> T mapJson(final Class<T> clazz, final File file) throws PrivateEc2ParserException {
if (file == null) {
return null;
}
final ObjectMapper mapper = new ObjectMapper();
mapper.configure(Feature.USE_ANNOTATIONS, true);
mapper.configure(Feature.FAIL_ON_UNKNOWN_PROPERTIES, false);
T tokenResponse = null;
try {
tokenResponse = mapper.readValue(file, clazz);
} catch (Exception e) {
throw new PrivateEc2ParserException(e);
}
return tokenResponse;
}
}