| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to you 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.apache.calcite.avatica; |
| |
| import java.io.PrintStream; |
| import java.io.PrintWriter; |
| import java.sql.SQLException; |
| import java.util.List; |
| import java.util.Objects; |
| |
| /** |
| * A client-facing {@link SQLException} which encapsulates errors from the remote Avatica server. |
| */ |
| public class AvaticaSqlException extends SQLException { |
| |
| private static final long serialVersionUID = 1L; |
| |
| private final String errorMessage; |
| private final List<String> stackTraces; |
| private final String remoteServer; |
| |
| /** |
| * Construct the Exception with information from the server. |
| * |
| * @param errorMessage A human-readable error message. |
| * @param errorCode An integer corresponding to a known error. |
| * @param stackTraces Server-side stacktrace. |
| * @param remoteServer The host:port where the Avatica server is located |
| */ |
| public AvaticaSqlException(String errorMessage, String sqlState, int errorCode, |
| List<String> stackTraces, String remoteServer) { |
| super("Error " + errorCode + " (" + sqlState + ") : " + errorMessage, sqlState, errorCode); |
| this.errorMessage = errorMessage; |
| this.stackTraces = Objects.requireNonNull(stackTraces); |
| this.remoteServer = remoteServer; |
| } |
| |
| public String getErrorMessage() { |
| return errorMessage; |
| } |
| |
| /** |
| * @return The stacktraces for exceptions thrown on the Avatica server. |
| */ |
| public List<String> getStackTraces() { |
| return stackTraces; |
| } |
| |
| /** |
| * @return The host:port for the remote Avatica server. May be null. |
| */ |
| public String getRemoteServer() { |
| return remoteServer; |
| } |
| |
| // printStackTrace() will get redirected to printStackTrace(PrintStream), don't need to override. |
| |
| @Override public void printStackTrace(PrintStream stream) { |
| super.printStackTrace(stream); |
| stream.flush(); |
| printServerStackTrace(new PrintStreamOrWriter(stream)); |
| } |
| |
| @Override public void printStackTrace(PrintWriter writer) { |
| super.printStackTrace(writer); |
| writer.flush(); |
| printServerStackTrace(new PrintStreamOrWriter(writer)); |
| } |
| |
| void printServerStackTrace(PrintStreamOrWriter streamOrWriter) { |
| for (String serverStackTrace : this.stackTraces) { |
| streamOrWriter.println(serverStackTrace); |
| } |
| } |
| |
| /** |
| * A class that encapsulates either a PrintStream or a PrintWriter. |
| */ |
| private static class PrintStreamOrWriter { |
| /** |
| * Enumeration to differentiate between a PrintStream and a PrintWriter. |
| */ |
| private enum Type { |
| STREAM, |
| WRITER |
| } |
| |
| private PrintStream stream; |
| private PrintWriter writer; |
| private final Type type; |
| |
| private PrintStreamOrWriter(PrintStream stream) { |
| this.stream = stream; |
| type = Type.STREAM; |
| } |
| |
| private PrintStreamOrWriter(PrintWriter writer) { |
| this.writer = writer; |
| type = Type.WRITER; |
| } |
| |
| /** |
| * Prints the given string to the the provided stream or writer. |
| * |
| * @param string The string to print |
| */ |
| public void println(String string) { |
| switch (type) { |
| case STREAM: |
| stream.println(string); |
| stream.flush(); |
| return; |
| case WRITER: |
| writer.println(string); |
| writer.flush(); |
| return; |
| default: |
| throw new IllegalStateException(); |
| } |
| } |
| } |
| } |
| |
| // End AvaticaSqlException.java |