get Single Error Message - Android java.lang

Android examples for java.lang:Throwable

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Description

get Single Error Message

Demo Code

import java.io.PrintWriter;
import java.io.StringWriter;

public class Main {
  public static String getSingleErrorMessage(Throwable err) {
    boolean prependClassName = !(err instanceof java.sql.SQLException || err
        .getClass() == java.lang.Exception.class);
    return getErrorMessage(err, prependClassName);
  }// w  ww .jav a 2s. c o m

  public static String getErrorMessage(Throwable err) {
    if (err instanceof java.sql.SQLException) {
      return getStackTraceErrorMessage(err);
    }
    if (err instanceof java.lang.NullPointerException) {
      return getStackTraceErrorMessage(err);
    }
    if (err instanceof java.io.EOFException) {
      return getStackTraceErrorMessage(err);
    }
    boolean prependClassName = !(err instanceof java.sql.SQLException || err
        .getClass() == java.lang.Exception.class);
    return getErrorMessage(err, prependClassName);
  }

  public static String getErrorMessage(Throwable err, boolean prependClassName) {
    String errMsg = err.getMessage();
    if (errMsg != null) {
      return errMsg;
    } else {
      StringWriter sw = new StringWriter();
      PrintWriter pw = new PrintWriter(sw);
      if (err instanceof java.lang.NullPointerException) {
        getErrorMessageByStackTrace(pw, err);
      } else {
        getSignErrorMessageByStackTrace(pw, err);
      }
      return sw.toString();
    }
  }

  public static String getStackTraceErrorMessage(Throwable err) {
    boolean prependClassName = !(err instanceof java.sql.SQLException || err
        .getClass() == java.lang.Exception.class);
    return getStackTraceErrorMessage(err, prependClassName);
  }

  public static String getStackTraceErrorMessage(Throwable err,
      boolean prependClassName) {
    StringWriter sw = new StringWriter();
    PrintWriter pw = new PrintWriter(sw);
    err.printStackTrace(pw);
    return sw.toString();
  }

  public static void getErrorMessageByStackTrace(PrintWriter pw, Throwable err) {
    err.printStackTrace(pw);
  }

  public static void getSignErrorMessageByStackTrace(PrintWriter pw,
      Throwable err) {
    Throwable ourCause = err.getCause();
    if (ourCause != null) {
      String errMsg = ourCause.getMessage();

      pw.print(errMsg);
      pw.print("\n");
      getErrorMessageByStackTrace(pw, ourCause);
    }
  }
}

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