/*
 * MIT License
 *
 * Copyright (c) 2020-present Cloudogu GmbH and Contributors
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

package sonia.scm.web;

import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.ObjectMapper;

import javax.servlet.ServletOutputStream;
import javax.servlet.WriteListener;
import java.io.ByteArrayOutputStream;
import java.io.IOException;

public class CapturingServletOutputStream extends ServletOutputStream {

  private final ByteArrayOutputStream baos = new ByteArrayOutputStream();

  @Override
  public void write(int b) throws IOException {
    baos.write(b);
  }

  @Override
  public void close() throws IOException {
    baos.close();
  }

  @Override
  public String toString() {
    return baos.toString();
  }

  @Override
  public boolean isReady() {
    return true;
  }

  @Override
  public void setWriteListener(WriteListener writeListener) {
  }

  public JsonNode getContentAsJson() {
    try {
      return new ObjectMapper().readTree(toString());
    } catch (JsonProcessingException e) {
      throw new RuntimeException("could not unmarshal json content", e);
    }
  }
}
