/* (non-Javadoc)
* @see org.exist.xquery.Expression#eval(org.exist.xquery.StaticContext, org.exist.dom.DocumentSet, org.exist.xquery.value.Sequence, org.exist.xquery.value.Item)
*/
public Sequence eval(Sequence contextSequence, Item contextItem) throws XPathException {
if (context.getProfiler().isEnabled()) {
context.getProfiler().start(this);
context
.getProfiler()
.message(
this,
Profiler.DEPENDENCIES,
"DEPENDENCIES",
Dependency.getDependenciesName(this.getDependencies()));
if (contextSequence != null)
context
.getProfiler()
.message(this, Profiler.START_SEQUENCES, "CONTEXT SEQUENCE", contextSequence);
if (contextItem != null)
context
.getProfiler()
.message(this, Profiler.START_SEQUENCES, "CONTEXT ITEM", contextItem.toSequence());
}
Sequence result = atomize(expression.eval(contextSequence, contextItem));
if (context.getProfiler().isEnabled()) context.getProfiler().end(this, "", result);
return result;
}
public String toString() {
StringBuffer result = new StringBuffer();
result.append("atomize[");
result.append(expression.toString());
result.append("]");
return result.toString();
}
/*
* (non-Javadoc)
*
* @see org.exist.xquery.BasicFunction#eval(org.exist.xquery.value.Sequence[],
* org.exist.xquery.value.Sequence)
*/
public Sequence eval(Sequence contextSequence, Item contextItem) throws XPathException {
if (context.getProfiler().isEnabled()) {
context.getProfiler().start(this);
context
.getProfiler()
.message(
this,
Profiler.DEPENDENCIES,
"DEPENDENCIES",
Dependency.getDependenciesName(this.getDependencies()));
if (contextSequence != null)
context
.getProfiler()
.message(this, Profiler.START_SEQUENCES, "CONTEXT SEQUENCE", contextSequence);
if (contextItem != null)
context
.getProfiler()
.message(this, Profiler.START_SEQUENCES, "CONTEXT ITEM", contextItem.toSequence());
}
Expression arg1 = getArgument(0);
Sequence s1 = arg1.eval(contextSequence, contextItem);
Expression arg2 = getArgument(1);
context.pushDocumentContext();
Sequence s2 = arg2.eval(contextSequence, contextItem);
context.popDocumentContext();
if (s1.isEmpty()) {
return BooleanValue.valueOf(s2.isEmpty());
} else if (s2.isEmpty()) {
return BooleanValue.valueOf(s1.isEmpty());
}
Sequence result = null;
StringBuffer v1 = new StringBuffer();
StringBuffer v2 = new StringBuffer();
try {
if (s1.hasMany()) {
for (int i = 0; i < s1.getItemCount(); i++) {
v1.append(serialize((NodeValue) s1.itemAt(i)));
}
} else {
v1.append(serialize((NodeValue) s1.itemAt(0)));
}
if (s2.hasMany()) {
for (int i = 0; i < s2.getItemCount(); i++) {
v2.append(serialize((NodeValue) s2.itemAt(i)));
}
} else {
v2.append(serialize((NodeValue) s2.itemAt(0)));
}
Diff d = new Diff(v1.toString(), v2.toString());
boolean identical = d.identical();
if (!identical) {
logger.warn("Diff result: " + d.toString());
}
result = new BooleanValue(identical);
} catch (Exception e) {
throw new XPathException(
this,
"An exception occurred while serializing node " + "for comparison: " + e.getMessage(),
e);
}
if (context.getProfiler().isEnabled()) context.getProfiler().end(this, "", result);
return result;
}
/* (non-Javadoc)
* @see org.exist.xquery.Expression#dump(org.exist.xquery.util.ExpressionDumper)
*/
public void dump(ExpressionDumper dumper) {
if (dumper.verbosity() > 1) dumper.display("atomize[");
expression.dump(dumper);
if (dumper.verbosity() > 1) dumper.display("]");
}
/* (non-Javadoc)
* @see org.exist.xquery.Expression#analyze(org.exist.xquery.Expression)
*/
public void analyze(AnalyzeContextInfo contextInfo) throws XPathException {
contextInfo.setParent(this);
expression.analyze(contextInfo);
}
/* (non-Javadoc)
* @see org.exist.xquery.AbstractExpression#getASTNode()
*/
public XQueryAST getASTNode() {
return expression.getASTNode();
}
/* (non-Javadoc)
* @see org.exist.xquery.AbstractExpression#resetState()
*/
public void resetState(boolean postOptimization) {
super.resetState(postOptimization);
expression.resetState(postOptimization);
}
public void setContextDocSet(DocumentSet contextSet) {
super.setContextDocSet(contextSet);
expression.setContextDocSet(contextSet);
}
/* (non-Javadoc)
* @see org.exist.xquery.AbstractExpression#getDependencies()
*/
public int getDependencies() {
return expression.getDependencies();
}
public void accept(ExpressionVisitor visitor) {
expression.accept(visitor);
}