/**
 * ============LICENSE_START===================================================
 * SPARKY (AAI UI service)
 * ============================================================================
 * Copyright © 2017 AT&T Intellectual Property.
 * Copyright © 2017 Amdocs
 * 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.
 * ============LICENSE_END=====================================================
 *
 * ECOMP and OpenECOMP are trademarks
 * and service marks of AT&T Intellectual Property.
 */

package org.openecomp.sparky.synchronizer;

import java.io.PrintWriter;

import org.xml.sax.ErrorHandler;
import org.xml.sax.SAXException;
import org.xml.sax.SAXParseException;

/**
 * The Class MyErrorHandler.
 */
public class MyErrorHandler implements ErrorHandler {

  /** Error handler output goes here. */
  private PrintWriter out;

  /**
   * Instantiates a new my error handler.
   *
   * @param out the out
   */
  public MyErrorHandler(PrintWriter out) {
    this.out = out;
  }

  /**
   * Returns a string describing parse exception details.
   *
   * @param spe the spe
   * @return the parses the exception info
   */
  private String getParseExceptionInfo(SAXParseException spe) {
    String systemId = spe.getSystemId();
    if (systemId == null) {
      systemId = "null";
    }
    String info = "URI=" + systemId + " Line=" + spe.getLineNumber() + ": " + spe.getMessage();
    return info;
  }

  // The following methods are standard SAX ErrorHandler methods.
  // See SAX documentation for more info.

  /* (non-Javadoc)
   * @see org.xml.sax.ErrorHandler#warning(org.xml.sax.SAXParseException)
   */
  @Override
  public void warning(SAXParseException spe) throws SAXException {
    out.println("Warning: " + getParseExceptionInfo(spe));
  }

  /* (non-Javadoc)
   * @see org.xml.sax.ErrorHandler#error(org.xml.sax.SAXParseException)
   */
  @Override
  public void error(SAXParseException spe) throws SAXException {
    String message = "Error: " + getParseExceptionInfo(spe);
    throw new SAXException(message);
  }

  /* (non-Javadoc)
   * @see org.xml.sax.ErrorHandler#fatalError(org.xml.sax.SAXParseException)
   */
  @Override
  public void fatalError(SAXParseException spe) throws SAXException {
    String message = "Fatal Error: " + getParseExceptionInfo(spe);
    throw new SAXException(message);
  }
}