/*
* Error.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.library;
import com.xmlcalabash.core.XProcException;
import com.xmlcalabash.core.XProcRuntime;
import com.xmlcalabash.core.XProcConstants;
import com.xmlcalabash.io.WritablePipe;
import com.xmlcalabash.model.RuntimeValue;
import com.xmlcalabash.util.TreeWriter;
import com.xmlcalabash.io.ReadablePipe;
import net.sf.saxon.s9api.QName;
import net.sf.saxon.s9api.SaxonApiException;
import net.sf.saxon.s9api.XdmNode;
import com.xmlcalabash.runtime.XAtomicStep;
/**
*
* @author ndw
*/
public class Error extends DefaultStep {
private static final QName c_error = new QName("c", XProcConstants.NS_XPROC_STEP, "error");
private static final QName _name = new QName("name");
private static final QName _code = new QName("code");
private static final QName _code_prefix = new QName("code-prefix");
private static final QName _code_namespace = new QName("code-namespace");
private static final QName _type = new QName("type");
private ReadablePipe source = null;
/** Creates a new instance of Delete */
public Error(XProcRuntime runtime, XAtomicStep step) {
super(runtime,step);
}
public void setInput(String port, ReadablePipe pipe) {
source = pipe;
}
public void setOutput(String port, WritablePipe pipe) {
// p:error always throws an exception, so who cares.
}
public void reset() {
source.resetReader();
}
public void run() throws SaxonApiException {
super.run();
XdmNode doc = source.read();
if (doc == null) {
logger.trace("Error step read empty");
} else {
logger.trace("Error step read " + doc.getDocumentURI());
}
RuntimeValue codeNameValue = getOption(_code);
String codeNameStr = codeNameValue.getString();
String cpfx = getOption(_code_prefix, (String) null);
String cns = getOption(_code_namespace, (String) null);
if (cpfx == null && cns != null) {
cpfx = "ERR";
}
if (cpfx != null && cns == null) {
throw XProcException.dynamicError(34, "You can't specify a prefix without a namespace");
}
if (cns != null && codeNameStr.contains(":")) {
throw XProcException.dynamicError(34, "You can't specify a namespace if the code name contains a colon");
}
QName errorCode = null;
if (codeNameStr.contains(":")) {
errorCode = new QName(codeNameStr, codeNameValue.getNode());
} else {
errorCode = new QName(cpfx == null ? "" : cpfx, cns, codeNameStr);
}
cpfx = errorCode.getPrefix();
cns = errorCode.getNamespaceURI();
TreeWriter treeWriter = new TreeWriter(runtime);
treeWriter.startDocument(step.getNode().getBaseURI());
treeWriter.addStartElement(c_error);
treeWriter.addNamespace(cpfx, cns);
treeWriter.addAttribute(_name, step.getName());
treeWriter.addAttribute(_type, "p:error");
treeWriter.addAttribute(_code, errorCode.toString());
treeWriter.startContent();
if (doc != null) {
treeWriter.addSubtree(doc);
}
treeWriter.addEndElement();
treeWriter.endDocument();
step.reportError(treeWriter.getResult());
if (doc == null) {
throw new XProcException(errorCode);
} else {
throw new XProcException(errorCode, doc, doc.getStringValue());
}
}
}