/*
* Pack.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.io.ReadablePipe;
import com.xmlcalabash.io.WritablePipe;
import com.xmlcalabash.core.XProcRuntime;
import com.xmlcalabash.model.RuntimeValue;
import com.xmlcalabash.util.TreeWriter;
import net.sf.saxon.s9api.SaxonApiException;
import net.sf.saxon.s9api.XdmNode;
import net.sf.saxon.s9api.QName;
import com.xmlcalabash.runtime.XAtomicStep;
/**
*
* @author ndw
*/
public class Pack extends DefaultStep {
protected static final String logger = "org.xproc.library.identity";
private static final QName _wrapper = new QName("wrapper");
private static final QName _wrapper_prefix = new QName("wrapper-prefix");
private static final QName _wrapper_namespace = new QName("wrapper-namespace");
private ReadablePipe source = null;
private ReadablePipe alternate = null;
private WritablePipe result = null;
/**
* Creates a new instance of Pack
*/
public Pack(XProcRuntime runtime, XAtomicStep step) {
super(runtime,step);
}
public void setInput(String port, ReadablePipe pipe) {
if ("source".equals(port)) {
source = pipe;
} else {
alternate = pipe;
}
}
public void setOutput(String port, WritablePipe pipe) {
result = pipe;
}
public void reset() {
source.resetReader();
result.resetWriter();
}
public void run() throws SaxonApiException {
super.run();
RuntimeValue wrapperNameValue = getOption(_wrapper);
String wrapperNameStr = wrapperNameValue.getString();
String wpfx = getOption(_wrapper_prefix, (String) null);
String wns = getOption(_wrapper_namespace, (String) null);
if (wpfx != null && wns == null) {
throw XProcException.dynamicError(34, "You can't specify a prefix without a namespace");
}
if (wns != null && wrapperNameStr.contains(":")) {
throw XProcException.dynamicError(34, "You can't specify a namespace if the wrapper name contains a colon");
}
QName wrapper = null;
if (wrapperNameStr.contains(":")) {
wrapper = new QName(wrapperNameStr, wrapperNameValue.getNode());
} else {
wrapper = new QName(wpfx == null ? "" : wpfx, wns, wrapperNameStr);
}
while (source.moreDocuments() || alternate.moreDocuments()) {
XdmNode sdoc = null;
XdmNode adoc = null;
if (source.moreDocuments()) {
sdoc = source.read();
}
if (alternate.moreDocuments()) {
adoc = alternate.read();
}
TreeWriter tree = new TreeWriter(runtime);
tree.startDocument(step.getNode().getBaseURI());
tree.addStartElement(wrapper);
tree.startContent();
if (sdoc != null) {
tree.addSubtree(sdoc);
}
if (adoc != null) {
tree.addSubtree(adoc);
}
tree.endDocument();
result.write(tree.getResult());
}
}
}