Examples with StringValue org.exist.xquery.value.StringValue used on opensource projects

Example 36 with StringValue

use of org.exist.xquery.value.StringValue in project exist by eXist-db.

the class UserXQueryJob method executeXQuery.

private void executeXQuery(final BrokerPool pool, final DBBroker broker, final Source source, final Properties params) throws PermissionDeniedException, XPathException, JobExecutionException {
    XQueryPool xqPool = null;
    CompiledXQuery compiled = null;
    XQueryContext context = null;
    try {
        // execute the xquery
        final XQuery xquery = pool.getXQueryService();
        xqPool = pool.getXQueryPool();
        // try and get a pre-compiled query from the pool
        compiled = xqPool.borrowCompiledXQuery(broker, source);
        if (compiled == null) {
            context = new XQueryContext(pool);
        } else {
            context = compiled.getContext();
            context.prepareForReuse();
        }
        if (source instanceof DBSource) {
            final XmldbURI collectionUri = ((DBSource) source).getDocumentPath().removeLastSegment();
            context.setModuleLoadPath(XmldbURI.EMBEDDED_SERVER_URI.append(collectionUri.getCollectionPath()).toString());
            context.setStaticallyKnownDocuments(new XmldbURI[] { collectionUri });
        }
        if (compiled == null) {
            try {
                compiled = xquery.compile(context, source);
            } catch (final IOException e) {
                abort("Failed to read query from " + xqueryResource);
            }
        }
        // declare any parameters as external variables
        if (params != null) {
            String bindingPrefix = params.getProperty("bindingPrefix");
            if (bindingPrefix == null) {
                bindingPrefix = "local";
            }
            for (final Entry param : params.entrySet()) {
                final String key = (String) param.getKey();
                final String value = (String) param.getValue();
                context.declareVariable(bindingPrefix + ":" + key, new StringValue(value));
            }
        }
        xquery.execute(broker, compiled, null);
    } finally {
        if (context != null) {
            context.runCleanupTasks();
        }
        // return the compiled query to the pool
        if (xqPool != null && source != null && compiled != null) {
            xqPool.returnCompiledXQuery(source, compiled);
        }
    }
}

Example 37 with StringValue

use of org.exist.xquery.value.StringValue in project exist by eXist-db.

the class FunctionFactory method equals.

/**
 * equals(node-set, string)
 */
private static GeneralComparison equals(XQueryContext context, XQueryAST ast, PathExpr parent, List<Expression> params) throws XPathException {
    if (params.size() < 2) {
        throw new XPathException(ast.getLine(), ast.getColumn(), ErrorCodes.XPST0017, "Function equals() requires two or three arguments");
    }
    if (params.size() > 3) {
        throw new XPathException(ast.getLine(), ast.getColumn(), ErrorCodes.XPST0017, "Function equals() requires two or three arguments");
    }
    final PathExpr p0 = (PathExpr) params.get(0);
    final PathExpr p1 = (PathExpr) params.get(1);
    if (p1.getLength() == 0) {
        throw new XPathException(ast.getLine(), ast.getColumn(), "Second argument of equals() is empty");
    }
    final GeneralComparison op = new GeneralComparison(context, p0, p1, Comparison.EQ, StringTruncationOperator.EQUALS);
    // TODO : not sure for parent -pb
    context.getProfiler().message(parent, Profiler.OPTIMIZATIONS, "OPTIMIZATION", "Rewritten contains() as a general comparison with no truncations");
    op.setLocation(ast.getLine(), ast.getColumn());
    if (params.size() == 3) {
        op.setCollation((Expression) params.get(2));
    } else {
        op.setCollation(new StringValue("?strength=identical"));
    }
    return op;
}

Example 38 with StringValue

use of org.exist.xquery.value.StringValue in project exist by eXist-db.

the class FunLocalName method eval.

@Override
public Sequence eval(Sequence contextSequence, final 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());
        }
    }
    if (contextItem != null) {
        contextSequence = contextItem.toSequence();
    }
    final Item item;
    // the context sequence
    if (getArgumentCount() > 0) {
        final Sequence seq = getArgument(0).eval(contextSequence);
        if (!seq.isEmpty()) {
            item = seq.itemAt(0);
        } else {
            item = null;
        }
    } else {
        if (contextSequence == null) {
            throw new XPathException(this, ErrorCodes.XPDY0002, "Undefined context item");
        }
        item = contextSequence.itemAt(0);
    }
    final Sequence result;
    if (item == null) {
        result = StringValue.EMPTY_STRING;
    } else {
        if (!Type.subTypeOf(item.getType(), Type.NODE)) {
            throw new XPathException(this, ErrorCodes.XPTY0004, "item is not a node; got '" + Type.getTypeName(item.getType()) + "'");
        }
        // TODO : how to improve performance ?
        final Node n = ((NodeValue) item).getNode();
        final String localName = n.getLocalName();
        if (localName != null) {
            result = new StringValue(localName);
        } else {
            result = StringValue.EMPTY_STRING;
        }
    }
    if (context.getProfiler().isEnabled()) {
        context.getProfiler().end(this, "", result);
    }
    return result;
}

Example 39 with StringValue

use of org.exist.xquery.value.StringValue in project exist by eXist-db.

the class FunName method eval.

@Override
public Sequence eval(Sequence contextSequence, final 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());
        }
    }
    if (contextItem != null) {
        contextSequence = contextItem.toSequence();
    }
    // If we have one argument, we take it into account
    final Sequence seq;
    if (getSignature().getArgumentCount() > 0) {
        seq = getArgument(0).eval(contextSequence, contextItem);
    } else {
        // Otherwise, we take the context sequence and we iterate over it
        seq = contextSequence;
    }
    if (seq == null) {
        throw new XPathException(this, ErrorCodes.XPDY0002, "Undefined context item");
    }
    final Sequence result;
    if (seq.isEmpty()) {
        result = StringValue.EMPTY_STRING;
    } else {
        final Item item = seq.itemAt(0);
        if (!Type.subTypeOf(item.getType(), Type.NODE)) {
            throw new XPathException(this, ErrorCodes.XPTY0004, "item is not a node; got '" + Type.getTypeName(item.getType()) + "'");
        }
        // TODO : how to improve performance ?
        final Node n = ((NodeValue) item).getNode();
        if (n instanceof INode) {
            result = new StringValue(((INode) n).getQName().getStringValue());
        } else {
            result = StringValue.EMPTY_STRING;
        }
    }
    if (context.getProfiler().isEnabled()) {
        context.getProfiler().end(this, "", result);
    }
    return result;
}

Example 40 with StringValue

use of org.exist.xquery.value.StringValue in project exist by eXist-db.

the class FunNormalizeUnicode method eval.

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());
        }
    }
    if (contextItem != null) {
        contextSequence = contextItem.toSequence();
    }
    Sequence result;
    final Sequence s1 = getArgument(0).eval(contextSequence);
    if (s1.isEmpty()) {
        result = StringValue.EMPTY_STRING;
    } else {
        String newNormalizationForm = "NFC";
        if (getArgumentCount() > 1) {
            newNormalizationForm = getArgument(1).eval(contextSequence).getStringValue().toUpperCase().trim();
        }
        // TODO : handle the "FULLY-NORMALIZED" string...
        if (newNormalizationForm.isEmpty()) {
            result = new StringValue(s1.getStringValue());
        } else {
            try {
                Normalizer.Form form = Normalizer.Form.valueOf(newNormalizationForm);
                result = new StringValue(Normalizer.normalize(s1.getStringValue(), form));
            } catch (IllegalArgumentException e) {
                throw new XPathException(this, ErrorCodes.FOCH0003, "Unknown normalization form: " + newNormalizationForm);
            }
        }
    }
    if (context.getProfiler().isEnabled()) {
        context.getProfiler().end(this, "", result);
    }
    return result;
}