com.predic8.membrane.core.interceptor.oauth2.ReusableJsonGenerator Maven / Gradle / Ivy
/*
* Copyright 2016 predic8 GmbH, www.predic8.com
* 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.predic8.membrane.core.interceptor.oauth2;
import com.fasterxml.jackson.core.JsonFactory;
import com.fasterxml.jackson.core.JsonGenerator;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
public class ReusableJsonGenerator {
JsonFactory jsonFactory = new JsonFactory();
ByteArrayOutputStream baos = new ByteArrayOutputStream();
JsonGenerator jsonGenerator;
public ReusableJsonGenerator() {
try {
jsonGenerator = jsonFactory.createGenerator(baos);
} catch (IOException e) {
}
}
public JsonGenerator resetAndGet() {
baos.reset();
return jsonGenerator;
}
public String getJson() throws IOException {
jsonGenerator.flush();
return baos.toString();
}
public String toString() {
try {
return getJson();
} catch (IOException e) {
return null;
}
}
}