/*
* Copyright (c) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 David Berkman
*
* This file is part of the SmallMind Code Project.
*
* The SmallMind Code Project is free software, you can redistribute
* it and/or modify it under either, at your discretion...
*
* 1) The terms of GNU Affero General Public License as published by the
* Free Software Foundation, either version 3 of the License, or (at
* your option) any later version.
*
* ...or...
*
* 2) The terms of the Apache License, Version 2.0.
*
* The SmallMind Code Project is distributed in the hope that it will
* be useful, but WITHOUT ANY WARRANTY; without even the implied warranty
* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License or Apache License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* and the Apache License along with the SmallMind Code Project. If not, see
* <http://www.gnu.org/licenses/> or <http://www.apache.org/licenses/LICENSE-2.0>.
*
* Additional permission under the GNU Affero GPL version 3 section 7
* ------------------------------------------------------------------
* If you modify this Program, or any covered work, by linking or
* combining it with other code, such other code is not for that reason
* alone subject to any of the requirements of the GNU Affero GPL
* version 3.
*/
package org.smallmind.web.jersey.fault;
import java.io.IOException;
import java.io.Serializable;
import javax.xml.bind.annotation.XmlAccessType;
import javax.xml.bind.annotation.XmlAccessorType;
import javax.xml.bind.annotation.XmlAnyElement;
import javax.xml.bind.annotation.XmlElement;
import javax.xml.bind.annotation.XmlElementRef;
import javax.xml.bind.annotation.XmlRootElement;
import javax.xml.bind.annotation.XmlTransient;
import org.smallmind.scribe.pen.LoggerManager;
import org.smallmind.web.jersey.util.JsonCodec;
@XmlRootElement(name = "fault")
@XmlAccessorType(XmlAccessType.PROPERTY)
public class Fault implements Serializable {
private Fault cause;
private FaultElement context;
private FaultElement[] elements;
private Object information;
private String throwableType;
private String message;
private NativeObject nativeObject;
public Fault () {
}
public Fault (String message) {
this.message = message;
}
public Fault (FaultElement context, String message) {
this(message);
this.context = context;
}
public Fault (Throwable throwable) {
this(null, throwable, true);
}
public Fault (FaultElement context, Throwable throwable) {
this(context, throwable, true);
}
public Fault (Throwable throwable, boolean includeNativeEncoding) {
this(null, throwable, includeNativeEncoding);
}
public Fault (FaultElement context, Throwable throwable, boolean includeNativeEncoding) {
this.context = context;
StackTraceElement[] stackTraceElements;
int index = 0;
if (includeNativeEncoding) {
try {
nativeObject = new NativeObject(throwable);
} catch (IOException ioException) {
LoggerManager.getLogger(Fault.class).error(ioException);
}
}
throwableType = throwable.getClass().getName();
message = throwable.getMessage();
if ((stackTraceElements = throwable.getStackTrace()) != null) {
elements = new FaultElement[stackTraceElements.length];
for (StackTraceElement stackTraceElement : stackTraceElements) {
elements[index++] = new FaultElement(stackTraceElement);
}
}
if (throwable.getCause() != null) {
cause = new Fault(throwable.getCause());
}
}
private static int findRepeatedStackElements (FaultElement element, FaultElement[] prevTrace) {
for (int count = 0; count < prevTrace.length; count++) {
if (element.equals(prevTrace[count])) {
return prevTrace.length - count;
}
}
return -1;
}
@XmlElement(name = "context")
public FaultElement getContext () {
return context;
}
public void setContext (FaultElement context) {
this.context = context;
}
@XmlElement(name = "type")
public String getThrowableType () {
return throwableType;
}
public void setThrowableType (String throwableType) {
this.throwableType = throwableType;
}
@XmlElement(name = "message")
public String getMessage () {
return message;
}
public void setMessage (String message) {
this.message = message;
}
@XmlElement(name = "cause")
public Fault getCause () {
return cause;
}
public void setCause (Fault cause) {
this.cause = cause;
}
@XmlElement(name = "trace")
public FaultElement[] getElements () {
return elements;
}
public void setElements (FaultElement[] elements) {
this.elements = elements;
}
@XmlTransient
public <T> T getInformationAs (Class<T> clazz) {
return (information == null) ? null : JsonCodec.convert(information, clazz);
}
@XmlElement(name = "information")
@XmlAnyElement
public Object getInformation () {
return information;
}
public Fault setInformation (Object information) {
this.information = information;
return this;
}
@XmlElement(name = "native")
public NativeObject getNativeObject () {
return nativeObject;
}
public void setNativeObject (NativeObject nativeObject) {
this.nativeObject = nativeObject;
}
@Override
public String toString () {
StringBuilder lineBuilder = new StringBuilder("Error in process ");
if (context != null) {
lineBuilder.append("at ").append(context).append(' ');
}
return print(lineBuilder);
}
private String print (StringBuilder lineBuilder) {
Fault fault = this;
FaultElement[] prevTrace = null;
StringBuilder traceBuilder;
int repeatedElements;
traceBuilder = new StringBuilder();
do {
String throwableType;
if (prevTrace != null) {
lineBuilder.append("Caused by: ");
}
lineBuilder.append(((throwableType = fault.getThrowableType()) != null) ? throwableType : "unknown");
lineBuilder.append(": ");
lineBuilder.append(fault.getMessage());
traceBuilder.append(lineBuilder).append(System.getProperty("line.separator"));
lineBuilder.delete(0, lineBuilder.length());
if (fault.getElements() != null) {
for (FaultElement element : fault.getElements()) {
if (prevTrace != null) {
if ((repeatedElements = findRepeatedStackElements(element, prevTrace)) >= 0) {
lineBuilder.append(" ... ");
lineBuilder.append(repeatedElements);
lineBuilder.append(" more");
traceBuilder.append(lineBuilder).append(System.getProperty("line.separator"));
lineBuilder.delete(0, lineBuilder.length());
break;
}
}
lineBuilder.append(" at ");
lineBuilder.append(element);
traceBuilder.append(lineBuilder).append(System.getProperty("line.separator"));
lineBuilder.delete(0, lineBuilder.length());
}
}
prevTrace = fault.getElements();
} while ((fault = fault.getCause()) != null);
return traceBuilder.toString();
}
}