ExceptionUtil.java

package org.tigris.juxy.util;

import org.xml.sax.SAXParseException;

import javax.xml.transform.SourceLocator;
import javax.xml.transform.TransformerException;

/**
 */
public class ExceptionUtil {
  public static String exceptionToString(TransformerException exception, boolean showSystemId) {
    StringBuffer message = new StringBuffer(20);
    if (exception.getLocator() != null) {
      SourceLocator locator = exception.getLocator();
      appendLocation(message, showSystemId ? locator.getSystemId() : null, locator.getLineNumber(), locator.getColumnNumber());
    }

    message.append(exception.getMessage());
    return message.toString();
  }

  public static String exceptionToString(SAXParseException exception, boolean showSystemId) {
    StringBuffer message = new StringBuffer(20);
    appendLocation(message, showSystemId ? exception.getSystemId() : null, exception.getLineNumber(), exception.getColumnNumber());

    message.append(exception.getMessage());
    return message.toString();
  }

  private static void appendLocation(StringBuffer message, String systemId, int lineNum, int colNum) {
    if (systemId != null)
      message.append(systemId);
    String line = "";
    String column = "";
    if (lineNum > 0)
      line = "line#: " + lineNum;
    if (colNum > 0)
      column = "col#: " + colNum;

    if (line.length() > 0 && systemId != null)
      message.append(", ");
    message.append(line);
    if (column.length() > 0)
      message.append(", ");
    message.append(column);

    if (systemId != null || lineNum > 0 || colNum > 0)
      message.append("; ");
  }
}