/*
 * Copyright 2006-2021 the original author or authors.
 *
 * 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.objenesis.gae;

import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.PrintStream;

import org.objenesis.instantiator.annotations.Instantiator;
import org.objenesis.instantiator.annotations.Typology;
import org.objenesis.tck.search.SearchWorkingInstantiatorListener;

import javax.servlet.jsp.JspWriter;

/**
 * @author Henri Tremblay
 */
public class JspWriterListener implements SearchWorkingInstantiatorListener {

   private static final String PATTERN = "<tr><td>%s</td><td>%s</td></tr>";

   private final JspWriter writer;

   public JspWriterListener(JspWriter out) {
      this.writer = out;
   }

   public void instantiatorSupported(Class<?> c) {
      try {
         writer.println(String.format(PATTERN, c.getSimpleName() + " (" + getTypology(c) + ")", "Working!"));
      } catch (IOException e) {
         throw new RuntimeException(e);
      }
   }

   public void instantiatorUnsupported(Class<?> c, Throwable t) {
      ByteArrayOutputStream b = new ByteArrayOutputStream();
      t.printStackTrace(new PrintStream(b));
      try {
         writer.println(String.format(PATTERN, c.getSimpleName() + " (" + getTypology(c) + ")", "KO - " + b));
      } catch (IOException e) {
         throw new RuntimeException(e);
      }
   }

   @Override
   public void instantiatorNotFound(String className, Throwable t) {
      ByteArrayOutputStream b = new ByteArrayOutputStream();
      t.printStackTrace(new PrintStream(b));
      try {
         writer.println(String.format(PATTERN, className + " not found", "KO - " + t));
      } catch (IOException e) {
         throw new RuntimeException(e);
      }
   }

   private Typology getTypology(Class<?> c) {
      Instantiator instantiatorAnn = c.getAnnotation(Instantiator.class);
      return instantiatorAnn == null ? Typology.UNKNOWN : instantiatorAnn.value();
   }
}
