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/**
* 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.hive.service.cli;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.List;
import org.apache.hive.service.rpc.thrift.TStatus;
import org.apache.hive.service.rpc.thrift.TStatusCode;
/**
* HiveSQLException.
*
*/
public class HiveSQLException extends SQLException {
/**
*
*/
private static final long serialVersionUID = -6095254671958748094L;
/**
*
*/
public HiveSQLException() {
super();
}
/**
* @param reason
*/
public HiveSQLException(String reason) {
super(reason);
}
/**
* @param cause
*/
public HiveSQLException(Throwable cause) {
super(cause);
}
/**
* @param reason
* @param sqlState
*/
public HiveSQLException(String reason, String sqlState) {
super(reason, sqlState);
}
/**
* @param reason
* @param cause
*/
public HiveSQLException(String reason, Throwable cause) {
super(reason, cause);
}
/**
* @param reason
* @param sqlState
* @param vendorCode
*/
public HiveSQLException(String reason, String sqlState, int vendorCode) {
super(reason, sqlState, vendorCode);
}
/**
* @param reason
* @param sqlState
* @param cause
*/
public HiveSQLException(String reason, String sqlState, Throwable cause) {
super(reason, sqlState, cause);
}
/**
* @param reason
* @param sqlState
* @param vendorCode
* @param cause
*/
public HiveSQLException(String reason, String sqlState, int vendorCode, Throwable cause) {
super(reason, sqlState, vendorCode, cause);
}
public HiveSQLException(TStatus status) {
// TODO: set correct vendorCode field
super(status.getErrorMessage(), status.getSqlState(), status.getErrorCode());
if (status.getInfoMessages() != null) {
initCause(toCause(status.getInfoMessages()));
}
}
/**
* Converts current object to a {@link TStatus} object
* @return a {@link TStatus} object
*/
public TStatus toTStatus() {
// TODO: convert sqlState, etc.
TStatus tStatus = new TStatus(TStatusCode.ERROR_STATUS);
tStatus.setSqlState(getSQLState());
tStatus.setErrorCode(getErrorCode());
tStatus.setErrorMessage(getMessage());
tStatus.setInfoMessages(toString(this));
return tStatus;
}
/**
* Converts the specified {@link Exception} object into a {@link TStatus} object
* @param e a {@link Exception} object
* @return a {@link TStatus} object
*/
public static TStatus toTStatus(Exception e) {
if (e instanceof HiveSQLException) {
return ((HiveSQLException)e).toTStatus();
}
TStatus tStatus = new TStatus(TStatusCode.ERROR_STATUS);
tStatus.setErrorMessage(e.getMessage());
tStatus.setInfoMessages(toString(e));
return tStatus;
}
/**
* Converts a {@link Throwable} object into a flattened list of texts including its stack trace
* and the stack traces of the nested causes.
* @param ex a {@link Throwable} object
* @return a flattened list of texts including the {@link Throwable} object's stack trace
* and the stack traces of the nested causes.
*/
public static List toString(Throwable ex) {
return toString(ex, null);
}
private static List toString(Throwable cause, StackTraceElement[] parent) {
StackTraceElement[] trace = cause.getStackTrace();
int m = trace.length - 1;
if (parent != null) {
int n = parent.length - 1;
while (m >= 0 && n >= 0 && trace[m].equals(parent[n])) {
m--; n--;
}
}
List detail = enroll(cause, trace, m);
cause = cause.getCause();
if (cause != null) {
detail.addAll(toString(cause, trace));
}
return detail;
}
private static List enroll(Throwable ex, StackTraceElement[] trace, int max) {
List details = new ArrayList();
StringBuilder builder = new StringBuilder();
builder.append('*').append(ex.getClass().getName()).append(':');
builder.append(ex.getMessage()).append(':');
builder.append(trace.length).append(':').append(max);
details.add(builder.toString());
for (int i = 0; i <= max; i++) {
builder.setLength(0);
builder.append(trace[i].getClassName()).append(':');
builder.append(trace[i].getMethodName()).append(':');
String fileName = trace[i].getFileName();
builder.append(fileName == null ? "" : fileName).append(':');
builder.append(trace[i].getLineNumber());
details.add(builder.toString());
}
return details;
}
/**
* Converts a flattened list of texts including the stack trace and the stack
* traces of the nested causes into a {@link Throwable} object.
* @param details a flattened list of texts including the stack trace and the stack
* traces of the nested causes
* @return a {@link Throwable} object
*/
public static Throwable toCause(List details) {
return toStackTrace(details, null, 0);
}
private static Throwable toStackTrace(List details, StackTraceElement[] parent, int index) {
String detail = details.get(index++);
if (!detail.startsWith("*")) {
return null; // should not be happened. ignore remaining
}
int i1 = detail.indexOf(':');
int i3 = detail.lastIndexOf(':');
int i2 = detail.substring(0, i3).lastIndexOf(':');
String exceptionClass = detail.substring(1, i1);
String exceptionMessage = detail.substring(i1 + 1, i2);
Throwable ex = newInstance(exceptionClass, exceptionMessage);
int length = Integer.parseInt(detail.substring(i2 + 1, i3));
int unique = Integer.parseInt(detail.substring(i3 + 1));
int i = 0;
StackTraceElement[] trace = new StackTraceElement[length];
for (; i <= unique; i++) {
detail = details.get(index++);
int j1 = detail.indexOf(':');
int j3 = detail.lastIndexOf(':');
int j2 = detail.substring(0, j3).lastIndexOf(':');
String className = detail.substring(0, j1);
String methodName = detail.substring(j1 + 1, j2);
String fileName = detail.substring(j2 + 1, j3);
if (fileName.isEmpty()) {
fileName = null;
}
int lineNumber = Integer.parseInt(detail.substring(j3 + 1));
trace[i] = new StackTraceElement(className, methodName, fileName, lineNumber);
}
int common = trace.length - i;
if (common > 0) {
System.arraycopy(parent, parent.length - common, trace, trace.length - common, common);
}
if (details.size() > index) {
ex.initCause(toStackTrace(details, trace, index));
}
ex.setStackTrace(trace);
return ex;
}
private static Throwable newInstance(String className, String message) {
try {
return (Throwable)Class.forName(className).getConstructor(String.class).newInstance(message);
} catch (Exception e) {
return new RuntimeException(className + ":" + message);
}
}
}
