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/*
* XProcException.java
*
* Copyright 2008 Mark Logic Corporation.
* Portions Copyright 2007 Sun Microsystems, Inc.
* All rights reserved.
*
* The contents of this file are subject to the terms of either the GNU
* General Public License Version 2 only ("GPL") or the Common
* Development and Distribution License("CDDL") (collectively, the
* "License"). You may not use this file except in compliance with the
* License. You can obtain a copy of the License at
* https://xproc.dev.java.net/public/CDDL+GPL.html or
* docs/CDDL+GPL.txt in the distribution. See the License for the
* specific language governing permissions and limitations under the
* License. When distributing the software, include this License Header
* Notice in each file and include the License file at docs/CDDL+GPL.txt.
*/
package com.xmlcalabash.core;
import com.xmlcalabash.model.Step;
import com.xmlcalabash.runtime.XStep;
import com.xmlcalabash.util.S9apiUtils;
import com.xmlcalabash.util.TreeWriter;
import com.xmlcalabash.util.URIUtils;
import net.sf.saxon.expr.instruct.Actor;
import net.sf.saxon.expr.instruct.AttributeSet;
import net.sf.saxon.expr.instruct.GlobalVariable;
import net.sf.saxon.expr.instruct.Instruction;
import net.sf.saxon.expr.instruct.NamedTemplate;
import net.sf.saxon.expr.instruct.TemplateRule;
import net.sf.saxon.expr.instruct.TerminationException;
import net.sf.saxon.expr.instruct.UserFunction;
import net.sf.saxon.expr.parser.ExplicitLocation;
import net.sf.saxon.expr.parser.XPathParser;
import net.sf.saxon.expr.XPathContext;
import net.sf.saxon.lib.NamespaceConstant;
import net.sf.saxon.lib.StandardErrorListener;
import net.sf.saxon.om.Item;
import net.sf.saxon.om.NodeInfo;
import net.sf.saxon.om.StructuredQName;
import net.sf.saxon.s9api.QName;
import net.sf.saxon.s9api.XdmNode;
import net.sf.saxon.trace.ContextStackFrame;
import net.sf.saxon.trace.ContextStackIterator;
import net.sf.saxon.trans.KeyDefinition;
import net.sf.saxon.trans.XPathException;
import net.sf.saxon.tree.AttributeLocation;
import net.sf.saxon.tree.util.Navigator;
import net.sf.saxon.type.ValidationException;
import javax.xml.transform.dom.DOMLocator;
import javax.xml.transform.SourceLocator;
import javax.xml.transform.TransformerException;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import java.util.Objects;
/**
*
* @author ndw
* @author bertfrees
*/
public class XProcException extends RuntimeException {
public static final QName err_E0001 = new QName(XProcConstants.NS_XPROC_ERROR_EX, "XE0001"); // invalid pipeline
public static final QName err_E0002 = new QName(XProcConstants.NS_XPROC_ERROR_EX, "XE0002"); // invalid configuration
private static final String NS_DAISY_PIPELINE_XPROC = "http://www.daisy.org/ns/pipeline/xproc";
private static final QName c_error = new QName("c", XProcConstants.NS_XPROC_STEP, "error");
private static final QName _href = new QName("", "href");
private static final QName _line = new QName("", "line");
private static final QName _column = new QName("", "column");
private static final QName _code = new QName("", "code");
private static final QName _type = new QName("", "type");
private static final QName _name = new QName("", "name");
private static final QName px_cause = new QName("px", NS_DAISY_PIPELINE_XPROC, "cause");
private static final QName px_location = new QName("px", NS_DAISY_PIPELINE_XPROC, "location");
private static final QName px_file = new QName("px", NS_DAISY_PIPELINE_XPROC, "file");
private final QName errorCode;
private final XdmNode errorContent;
private final XProcException errorCause;
private final SourceLocator[] location;
private static final SourceLocator NO_LOCATOR = new SourceLocator() {
public String getPublicId() { return null; }
public String getSystemId() { return null; }
public int getLineNumber() { return -1; }
public int getColumnNumber() { return -1; }
};
private static final SourceLocator[] NO_LOCATION = new SourceLocator[]{NO_LOCATOR};
/**
* Create an XProc error
*
* @param code The type of the error, or null if untyped.
* @param location The location of the error, or null if unknown or not
* applicable. Can be a {@link SourceLocator[]}, {@link XStep}, {@link Step},
* {@link XdmNode}, {@link TransformerException} or {@link Throwable}.
* @param message The content of the error. Can be a {@link String}, {@link XdmNode}, {@link
* Throwable} or null if absent. In case of {@link Throwable}, this
* argument determines both the content of the error (through its {@link
* XProcException#getErrorContent()} or {@link Throwable#getMessage()} method)
* and also the cause of the Java exception. Note that the latter is different
* from the cause argument (see below).
* @param cause The XProc error that caused this XProc error to be created. Note that this
* is not the same as the cause of the Java exception.
*/
protected XProcException(QName code, Object location, Object message, XProcException cause) {
super(
message instanceof String
? (String)message
: message instanceof XdmNode
? ((XdmNode)message).getStringValue()
: message instanceof Throwable
? ((Throwable)message).getMessage()
: null,
message instanceof Throwable
? (Throwable)message
: null);
errorCode = code;
if (!(message == null ||
message instanceof String ||
message instanceof XdmNode ||
message instanceof Throwable))
throw new IllegalStateException("coding error");
errorContent = message instanceof XdmNode
? (XdmNode)message
: message instanceof XProcException
? ((XProcException)message).getErrorContent()
: null;
this.location = getLocation(location);
this.errorCause = cause;
}
private static class StaticXProcError extends XProcException {
private StaticXProcError(Integer code, Object location, Object message) {
super(code != null ? XProcConstants.staticError(code) : null,
location,
message,
null);
if (code == null ||
!(message == null ||
message instanceof String ||
message instanceof Throwable))
throw new IllegalStateException("coding error");
}
}
private static class DynamicXProcError extends XProcException {
private DynamicXProcError(Object code, Object location, Object message, XProcException cause) {
super(code instanceof QName
? (QName)code
: code instanceof Integer
? code != null
? XProcConstants.dynamicError((Integer)code)
: null
: null,
location,
message,
cause);
if (code == null ||
!(code instanceof Integer ||
code instanceof QName))
throw new IllegalStateException("coding error");
}
}
public static XProcException staticError(int code) {
return new StaticXProcError(code, null, null);
}
public static XProcException staticError(int code, String message) {
return new StaticXProcError(code, null, message);
}
public static XProcException staticError(int code, XdmNode location, String message) {
return new StaticXProcError(code, location, message);
}
public static XProcException staticError(int code, XdmNode location, Throwable message) {
return new StaticXProcError(code, location, message);
}
public static XProcException dynamicError(int code) {
return new DynamicXProcError(code, null, null, null);
}
public static XProcException dynamicError(int code, String message) {
return new DynamicXProcError(code, null, message, null);
}
public static XProcException dynamicError(int code, Throwable message) {
return new DynamicXProcError(code, null, message, null);
}
public static XProcException dynamicError(int code, XdmNode location, String message) {
return new DynamicXProcError(code, location, message, null);
}
public static XProcException dynamicError(int code, XdmNode location, Throwable message) {
return new DynamicXProcError(code, location, message, null);
}
public static XProcException dynamicError(int code, Step location) {
return new DynamicXProcError(code, location, null, null);
}
public static XProcException dynamicError(int code, Step location, String message) {
return new DynamicXProcError(code, location, message, null);
}
public static XProcException dynamicError(int code, XStep location, String message) {
return new DynamicXProcError(code, location, message, null);
}
public static XProcException stepError(int code) {
return new DynamicXProcError(XProcConstants.stepError(code), null, null, null);
}
public static XProcException stepError(int code, String message) {
return new DynamicXProcError(XProcConstants.stepError(code), null, message, null);
}
public static XProcException stepError(int code, Throwable message) {
return new DynamicXProcError(XProcConstants.stepError(code), null, message, null);
}
public static XProcException stepError(int code, XdmNode location, String message) {
return new DynamicXProcError(XProcConstants.stepError(code), location, message, null);
}
public static XProcException stepError(int code, XStep location) {
return new DynamicXProcError(XProcConstants.stepError(code), location, null, null);
}
public static XProcException stepError(int code, XStep location, Throwable message) {
return new DynamicXProcError(XProcConstants.stepError(code), location, message, null);
}
public XProcException(QName code, XdmNode location, String message) {
this(code, location, message, null);
}
public XProcException(QName code, XStep location, String message) {
this(code, location, message, null);
}
public XProcException(QName code, XStep location, XdmNode message) {
this(code, location, message, null);
}
public XProcException(QName code, XStep location, Throwable message) {
this(code, location, message, null);
}
public XProcException(QName code, TransformerException location, XdmNode message) {
this(code, location, message, null);
}
public XProcException(QName code, TransformerException location, Throwable message) {
this(code, location, message, null);
}
public XProcException(QName code, TransformerException location, XdmNode message, XProcException cause) {
this(code, (Object)location, (Object)message, cause);
}
public XProcException(QName code, TransformerException location, Throwable message, XProcException cause) {
this(code, (Object)location, (Object)message, cause);
}
public XProcException(QName code, XStep location, String message, XProcException cause) {
this(code, (Object)location, (Object)message, cause);
}
public XProcException(QName code, XStep location, Throwable message, XProcException cause) {
this(code, (Object)location, (Object)message, cause);
}
public XProcException(QName code, String message) {
this(code, null, message, null);
}
public XProcException(QName code, Throwable message) {
this(code, (Object)null, message, null);
}
public XProcException(String message) {
this(null, null, message, null);
}
public XProcException(Throwable message) {
this(null, (Object)null, message, null);
}
public XProcException(Throwable message, XProcException cause) {
this(null, (Object)null, message, cause);
}
public XProcException(SourceLocator[] location, Throwable message) {
this(null, location, message, null);
}
public XProcException(XdmNode location, String message) {
this(null, location, message, null);
}
public XProcException(XdmNode location, Throwable message) {
this(null, location, message, null);
}
public XProcException(Step location, String message) {
this(null, location, message, null);
}
public XProcException(XStep location, String message) {
this(null, location, message, null);
}
public XProcException(XStep location, Throwable message) {
this(null, location, message, null);
}
public XProcException(XStep location, String message, XProcException cause) {
this(null, location, message, cause);
}
public XProcException(XStep location, Throwable message, XProcException cause) {
this(null, location, message, cause);
}
public XProcException(TransformerException location, XdmNode message) {
this(null, location, message, null);
}
public XProcException(TransformerException location, Throwable message) {
this(null, location, message, null);
}
public XProcException(TransformerException location, XdmNode message, XProcException cause) {
this(null, location, message, cause);
}
public XProcException(TransformerException location, Throwable message, XProcException cause) {
this(null, location, message, cause);
}
/**
* Create a XProc error from a Java exception. The exception is used for both the message and
* location or the XProc error. The exception's cause is also converted to an XProc error and
* becomes the error cause (and this recursively).
*/
public static XProcException fromException(Throwable throwable) {
XProcException cause = throwable.getCause() != null
? fromException(throwable.getCause())
: null;
return new XProcException(null, throwable, throwable, cause);
}
/**
* Create a new instance of the same XProc error, to allow to better track where exceptions are
* thrown.
*/
public XProcException copy() {
return new XProcException(errorCode, location, this, errorCause);
}
public XProcException rebase(SourceLocator[] base) {
return rebase(base, null);
}
public XProcException rebase(XStep base) {
return rebase(base, null);
}
public XProcException rebase(TransformerException base) {
return rebase(base, null);
}
public XProcException rebase(SourceLocator[] newBase, StackTraceElement[] oldBase) {
return rebase((Object)newBase, (Object)oldBase);
}
private XProcException rebase(Object newBaseObject, Object oldBaseObject) {
SourceLocator[] newBase = getLocation(newBaseObject);
SourceLocator[] oldBase = getLocation(oldBaseObject);
SourceLocator[] newLocation; {
int newLength = 0;
if (location != NO_LOCATION) {
if (oldBase != NO_LOCATION) {
int m = location.length - 1;
int n = oldBase.length - 1;
while (m >= 0 && n >= 0
&& Objects.equals(location[m].getSystemId(), oldBase[n].getSystemId())
&& Objects.equals(location[m].getLineNumber(), oldBase[n].getLineNumber())
&& Objects.equals(location[m].getColumnNumber(), oldBase[n].getColumnNumber())) {
m--;
n--;
}
// allow top frame to differ in line number, as long as we're in the same method
if (m >= 0 && n >= 0
&& location[m] instanceof JavaFrame
&& oldBase[n] instanceof JavaFrame) {
StackTraceElement frame = ((JavaFrame)location[m]).frame;
StackTraceElement oldFrame = ((JavaFrame)oldBase[n]).frame;
if (frame.getClassName().equals(oldFrame.getClassName())
&& Objects.equals(frame.getMethodName(), oldFrame.getMethodName())
&& Objects.equals(frame.getFileName(), oldFrame.getFileName())) {
m--;
n--;
}
}
if (n < 0)
newLength += (m + 2);
else
newLength += location.length;
} else
newLength += location.length;
}
if (newBase != NO_LOCATION) {
newLength += newBase.length;
}
if (newLength == 0)
newLocation = NO_LOCATION;
else {
newLocation = new SourceLocator[newLength];
int i = 0;
if (newBase != NO_LOCATION)
newLength -= newBase.length;
while (i < newLength) {
newLocation[i] = location[i];
i++;
}
if (newBase != NO_LOCATION) {
for (SourceLocator l : newBase)
newLocation[i++] = l;
}
}
}
XProcException newErrorCause = errorCause != null
? errorCause.rebase(newBase, oldBase)
: null;
return new XProcException(errorCode, newLocation, this, newErrorCause);
}
public QName getErrorCode() {
return errorCode;
}
public XdmNode getErrorContent() {
return errorContent;
}
public XProcException getErrorCause() {
return errorCause;
}
public SourceLocator[] getLocation() {
return location;
}
public static SourceLocator prettyLocator(SourceLocator locator, final String instructionName) {
return new SourceLocatorWithInstructionName(locator) {
protected String getInstructionName() {
return instructionName;
}
};
}
public static SourceLocator prettyLocator(final String systemId, final int lineNumber, final int columnNumber,
final String instructionName) {
return new SourceLocatorWithInstructionName(new SourceLocator() {
public String getPublicId() { return null; }
public String getSystemId() { return systemId; }
public int getLineNumber() { return lineNumber; }
public int getColumnNumber() { return columnNumber; }
}) {
protected String getInstructionName() {
return instructionName;
}
};
}
private static SourceLocator[] getLocation(Object object) {
SourceLocator[] location; {
if (object == null)
location = null;
else if (object instanceof SourceLocator[])
location = (SourceLocator[])object;
else if (object instanceof XStep)
location = ((XStep)object).getLocation();
else if (object instanceof Step)
location = new SourceLocator[]{getLocator(((Step)object))};
else if (object instanceof XdmNode)
location = new SourceLocator[]{getLocator((XdmNode)object)};
else if (object instanceof XProcException)
location = ((XProcException)object).getLocation();
else if (object instanceof TransformerException)
location = getLocation((TransformerException)object);
else if (object instanceof StackTraceElement[])
location = getLocation((StackTraceElement[])object);
else if (object instanceof Throwable)
location = getLocation(((Throwable)object).getStackTrace());
else
throw new IllegalStateException("coding error");
}
if (location == null || location.length == 0)
return NO_LOCATION;
else
return location;
}
private static SourceLocator[] getLocation(TransformerException e) {
// This code is inspired by StandardErrorListener
List frames = new ArrayList();
SourceLocator loc = e.getLocator();
if (loc == null) {
TransformerException err = e;
while (loc == null) {
if (err.getException() instanceof TransformerException) {
err = (TransformerException)err.getException();
loc = err.getLocator();
} else if (err.getCause() instanceof TransformerException) {
err = (TransformerException)err.getCause();
loc = err.getLocator();
} else {
break;
}
}
}
if (loc == null)
loc = ExplicitLocation.UNKNOWN_LOCATION;
if (loc instanceof XPathParser.NestedLocation)
loc = ((XPathParser.NestedLocation)loc).getContainingLocation();
String instructionName = getInstructionName(loc);
if (instructionName == null && e instanceof TerminationException)
instructionName = "xsl:message";
loc = prettyLocator(loc, instructionName);
frames.add(loc);
// now add more frames based on XPathContext
if (e instanceof XPathException) {
XPathException xe = (XPathException)e;
XPathContext ctxt = xe.getXPathContext();
if (ctxt != null) {
Iterator ff = new ContextStackIterator(xe.getXPathContext());
while (ff.hasNext()) {
ContextStackFrame f = ff.next();
instructionName = getInstructionName(f);
if (instructionName != null)
frames.add(prettyLocator(f.getSystemId(), f.getLineNumber(), -1, instructionName));
}
}
}
return frames.toArray(new SourceLocator[frames.size()]);
}
private static SourceLocator[] getLocation(StackTraceElement[] trace) {
SourceLocator[] location = new SourceLocator[trace.length];
for (int i = 0; i < trace.length; i++) {
location[i] = new JavaFrame(trace[i]);
}
return location;
}
private static SourceLocator getLocator(XdmNode node) {
if (node == null)
return NO_LOCATOR;
final String systemId = URIUtils.cwdAsURI().relativize(node.getBaseURI()).toASCIIString();
final int line = node.getLineNumber() > 0 ? node.getLineNumber() : S9apiUtils.getDocumentElement(node).getLineNumber();
final int col = node.getColumnNumber();
return new SourceLocator() {
public String getPublicId() {
return null;
}
public String getSystemId() {
return systemId;
}
public int getLineNumber() {
return line;
}
public int getColumnNumber() {
return col;
}
@Override
public String toString() {
StringBuilder s = new StringBuilder();
String fileName = getSystemId();
if (fileName != null && !"".equals(fileName)) {
if (fileName.lastIndexOf('/') >= 0)
fileName = fileName.substring(fileName.lastIndexOf('/') + 1);
s.append(fileName);
int line = getLineNumber();
if (line > 0)
s.append(":" + getLineNumber());
}
if (s.length() == 0)
s.append("?");
return s.toString();
}
};
}
public static SourceLocator getLocator(Step step) {
return new XProcLocator(step);
}
private static String getInstructionName(SourceLocator loc) {
if (loc instanceof AttributeLocation) {
return ((AttributeLocation)loc).getElementName().getDisplayName() + "/@"
+ ((AttributeLocation)loc).getAttributeName();
} else if (loc instanceof DOMLocator) {
return ((DOMLocator)loc).getOriginatingNode().getNodeName();
} else if (loc instanceof NodeInfo) {
return ((NodeInfo)loc).getDisplayName();
} else if (loc instanceof ValidationException && ((ValidationException)loc).getNode() != null) {
return (((ValidationException)loc).getNode()).getDisplayName();
} else if (loc instanceof Instruction) {
return StandardErrorListener.getInstructionName((Instruction)loc);
} else if (loc instanceof Actor) {
return getInstructionName((Actor)loc);
} else {
return null;
}
}
private static String getInstructionName(ContextStackFrame frame) {
if (frame instanceof ContextStackFrame.FunctionCall) {
StructuredQName name = ((ContextStackFrame.FunctionCall)frame).getFunctionName();
if (name != null)
return name.getClarkName() + "()";
} else if (frame instanceof ContextStackFrame.ApplyTemplates) {
String name = "xsl:apply-templates";
Item node = frame.getContextItem();
if (node instanceof NodeInfo)
name += " processing " + Navigator.getPath((NodeInfo)node);
return name;
} else if (frame instanceof ContextStackFrame.CallTemplate) {
return "xsl:call-template name=\""
+ ((ContextStackFrame.CallTemplate)frame).getTemplateName().getDisplayName() + "\"";
} else if (frame instanceof ContextStackFrame.VariableEvaluation) {
Object container = frame.getContainer();
if (container instanceof Actor) {
return getInstructionName((Actor)container);
} else if (container instanceof TemplateRule) {
return "xsl:template match=\"" + ((TemplateRule)container).getMatchPattern().toString() + "\"";
}
}
return null;
}
private static String getInstructionName(Actor actor) {
StructuredQName name = actor.getObjectName();
String objectName = name == null ? "" : name.getDisplayName();
if (actor instanceof UserFunction) {
return "function " + objectName + "()";
} else if (actor instanceof NamedTemplate) {
return "template name=\"" + objectName + "\"";
} else if (actor instanceof AttributeSet) {
return "attribute-set " + objectName;
} else if (actor instanceof KeyDefinition) {
return "key " + objectName;
} else if (actor instanceof GlobalVariable) {
StructuredQName qName = ((GlobalVariable)actor).getVariableQName();
if (qName.hasURI(NamespaceConstant.SAXON_GENERATED_VARIABLE)) {
return "optimizer-created global variable";
} else {
return "global variable $" + qName.getDisplayName();
}
} else {
return "procedure " + objectName;
}
}
private static abstract class SourceLocatorWithInstructionName implements SourceLocator {
private final SourceLocator locator;
public SourceLocatorWithInstructionName(SourceLocator locator) {
this.locator = locator;
}
public String getPublicId() {
return locator != null ? locator.getPublicId() : null;
}
public String getSystemId() {
return locator != null ? locator.getSystemId() : null;
}
public int getLineNumber() {
return locator != null ? locator.getLineNumber() : -1;
}
public int getColumnNumber() {
return locator != null ? locator.getColumnNumber() : -1;
}
protected abstract String getInstructionName();
@Override
public String toString() {
StringBuilder s = new StringBuilder();
String instructionName = getInstructionName();
String fileName = getSystemId();
if (fileName != null && !"".equals(fileName)) {
if (fileName.lastIndexOf('/') >= 0)
fileName = fileName.substring(fileName.lastIndexOf('/') + 1);
s.append(fileName);
int line = getLineNumber();
if (line > 0)
s.append(":" + getLineNumber());
}
if (instructionName != null && !"".equals(instructionName)) {
if (s.length() > 0)
s.insert(0, instructionName + "(").append(")");
else
s.append(instructionName);
} else if (s.length() == 0)
s.append("?");
return s.toString();
}
}
public static class XProcLocator extends SourceLocatorWithInstructionName {
private final Step step;
private final String instructionName;
public XProcLocator(Step step) {
super(getLocator(step != null ? step.getNode() : null));
this.step = step;
if (step == null || step.getNode() == null) {
instructionName = null;
} else {
String name = step.getName();
instructionName = step.getNode().getNodeName().getClarkName()
+ ((name.startsWith("#") || name.startsWith("!")) ? "" : (" name=\"" + name + "\""));
}
}
public Step getStep() {
return step;
}
protected String getInstructionName() {
return instructionName;
}
}
private static class JavaFrame implements SourceLocator {
public final StackTraceElement frame;
public JavaFrame(StackTraceElement frame) {
this.frame = frame;
}
public String getPublicId() {
return null;
}
public String getSystemId() {
return frame.getFileName();
}
public int getLineNumber() {
return frame.getLineNumber();
}
public int getColumnNumber() {
return -1;
}
@Override
public String toString() {
return frame.toString();
}
}
// adapted from java.lang.Throwable
private String printEnclosedLocation(SourceLocator[] enclosingLocation) {
StringBuilder s = new StringBuilder();
String message = getMessage();
if (errorCode != null) {
s.append("[").append(errorCode).append("]");
if (message != null)
s.append(" ");
}
if (message != null)
s.append(message);
else if (errorCode == null)
s.append((String)null);
int m = location.length - 1;
int n = enclosingLocation.length - 1;
while (m >= 0 && n >=0 && location[m].equals(enclosingLocation[n])) {
m--;
n--;
}
int inCommon = location.length - 1 - m;
for (int i = 0; i <= m; i++)
if (location[i] != NO_LOCATOR)
s.append("\n\tat " + location[i]);
if (inCommon != 0)
s.append("\n\t... " + inCommon + " more");
if (errorCause != null) {
s.append("\nCaused by: ");
s.append(errorCause.printEnclosedLocation(location));
}
return s.toString();
}
@Override
public String toString() {
return printEnclosedLocation(new SourceLocator[]{});
}
private static void serializeLocation(SourceLocator[] location, TreeWriter writer) {
boolean empty = true;
for (SourceLocator l : location) {
if (l.getSystemId() != null || l.getLineNumber() > 0) {
empty = false;
break;
}
}
if (empty) return;
writer.addStartElement(px_location);
writer.startContent();
for (SourceLocator l : location) {
if (l.getSystemId() != null || l.getLineNumber() > 0) {
writer.addStartElement(px_file);
if (l.getSystemId() != null)
writer.addAttribute(_href, l.getSystemId());
int line = l.getLineNumber();
if (line > 0)
writer.addAttribute(_line, ""+line);
int column = l.getColumnNumber();
if (column > 0)
writer.addAttribute(_column, ""+column);
writer.addEndElement();
}
}
writer.addEndElement();
}
public void serialize(TreeWriter writer) {
writer.addStartElement(c_error);
if (errorCode != null) {
StructuredQName qCode = new StructuredQName(errorCode.getPrefix(), errorCode.getNamespaceURI(), errorCode.getLocalName());
writer.addNamespace(qCode.getPrefix(), qCode.getNamespaceBinding().getURI());
writer.addAttribute(_code, qCode.getDisplayName());
}
if (location[0] instanceof XProcLocator) {
Step step = ((XProcLocator)location[0]).step;
if (step != null) {
writer.addAttribute(_name, step.getName());
writer.addAttribute(_type, step.getType().toString());
}
}
if (location[0].getSystemId() != null)
writer.addAttribute(_href, location[0].getSystemId());
if (location[0].getLineNumber() > 0)
writer.addAttribute(_line, ""+location[0].getLineNumber());
if (location[0].getColumnNumber() > 0)
writer.addAttribute(_column, ""+location[0].getColumnNumber());
writer.startContent();
if (errorContent != null)
writer.addSubtree(errorContent);
else {
String message = getMessage();
if (message != null)
writer.addText(message);
}
serializeLocation(location, writer);
if (errorCause != null) {
writer.addStartElement(px_cause);
writer.startContent();
errorCause.serialize(writer);
writer.addEndElement();
}
writer.addEndElement();
}
}