/* 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.spin.impl.json.tree;
import java.io.IOException;
import java.io.InputStream;
import java.util.regex.Pattern;
import org.camunda.spin.logging.SpinLogger;
import org.camunda.spin.spi.TextBasedDataFormatReader;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.ObjectMapper;
/**
* @author Thorben Lindhauer
*/
public class JsonJacksonTreeDataFormatReader extends TextBasedDataFormatReader {
private static final JsonJacksonTreeLogger JSON_LOGGER = SpinLogger.JSON_TREE_LOGGER;
private static final Pattern INPUT_MATCHING_PATTERN = Pattern.compile("\\A(\\s)*[{\\[]");
protected JsonJacksonTreeDataFormat format;
public JsonJacksonTreeDataFormatReader(JsonJacksonTreeDataFormat format) {
this.format = format;
}
public Object readInput(InputStream input) {
ObjectMapper mapper = format.getConfiguredObjectMapper();
try {
return mapper.readTree(input);
} catch (JsonProcessingException e) {
throw JSON_LOGGER.unableToParseInput(e);
} catch (IOException e) {
throw JSON_LOGGER.unableToParseInput(e);
}
}
protected Pattern getInputDetectionPattern() {
return INPUT_MATCHING_PATTERN;
}
}