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/*
* Choose.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.model;
import java.util.HashSet;
import java.util.Hashtable;
import net.sf.saxon.s9api.XdmNode;
import com.xmlcalabash.core.XProcRuntime;
import com.xmlcalabash.core.XProcConstants;
import com.xmlcalabash.core.XProcException;
/**
*
* @author ndw
*/
public class Choose extends DeclareStep {
/* Creates a new instance of Choose */
public Choose(XProcRuntime xproc, XdmNode node, String name) {
super(xproc, node, name);
declaration = this;
stepType = XProcConstants.p_choose;
}
public boolean isPipeline() {
return false;
}
public DeclareStep getDeclaration() {
return declaration;
}
public void addInput(Input input) {
input.setStep(this);
for (Input current : inputs) {
if (current.getPort().equals(input.getPort())) {
if ("#xpath-context".equals(input.getPort())) {
return; // It's ok for the xpath-context port to be specified in both places.
} else {
throw XProcException.staticError(11, "Input port name '" + input.getPort() + "' appears more than once.");
}
}
}
inputs.add(input);
}
protected void augmentIO() {
if (getInput("#xpath-context") == null) {
Input isource = new Input(runtime, node);
isource.setPort("#xpath-context");
addInput(isource);
}
// Assume that everything will be OK when we validate...
if (subpipeline.size() > 0) {
Step step = subpipeline.get(0);
for (Input input : step.inputs()) {
Input cinput = new Input(runtime, step.getNode());
cinput.setPort(input.getPort());
cinput.setPrimary(input.getPrimary());
cinput.setSequence(input.getSequence());
addInput(cinput);
}
for (Output output : step.outputs()) {
Output coutput = new Output(runtime, step.getNode());
coutput.setPort(output.getPort());
coutput.setPrimary(output.getPrimary());
coutput.setSequence(output.getSequence());
addOutput(coutput);
}
}
super.augmentIO();
}
@Override
public HashSet getExcludeInlineNamespaces() {
return ((DeclareStep) parent).getExcludeInlineNamespaces();
}
@Override
protected void setEnvironment(Environment newEnvironment) {
Environment env = new Environment(newEnvironment);
patchEnvironment(env);
super.setEnvironment(env);
// Now what about my subpipeline
for (Step step : subpipeline()) {
Environment senv = new Environment(env);
step.setEnvironment(senv);
}
}
@Override
protected boolean validBindings() {
boolean valid = true;
// First, make sure all the substeps have the same bindings
Hashtable inputs = new Hashtable();
Hashtable outputs = new Hashtable();
Step step = null;
if (subpipeline.size() > 0) {
step = subpipeline.get(0);
for (Input input : step.inputs()) {
inputs.put(input.getPort(), input);
}
for (Output output : step.outputs()) {
outputs.put(output.getPort(), output);
}
for (int pos = 1; pos < subpipeline.size(); pos++) {
step = subpipeline.get(pos);
for (Input input : step.inputs()) {
if (inputs.containsKey(input.getPort())) {
if ("#xpath-context".equals(input.getPort()) || input.getPort().startsWith("|")) {
// assume it's ok
} else {
Input s1input = inputs.get(input.getPort());
if (s1input.getPrimary() != input.getPrimary()) {
valid = false;
error(
XProcException.staticError(
7, "Input port " + input.getPort() + " has different primary status."));
}
}
} else {
valid = false;
error(XProcException.staticError(7, "Input port " + input.getPort() + " is extra."));
}
}
for (String port : inputs.keySet()) {
if (!port.startsWith("|") && !port.startsWith("#") && step.getInput(port) == null) {
valid = false;
error(XProcException.staticError(7, "Input port " + port + " missing."));
}
}
for (Output output : step.outputs()) {
if (outputs.containsKey(output.getPort())) {
Output s1output = outputs.get(output.getPort());
Output chooseOut = getOutput(output.getPort());
// If any of the outputs can be a sequence, then the choose out can be a sequence
chooseOut.setSequence(chooseOut.getSequence() || output.getSequence());
if (output.getPort().endsWith("|") || output.getPort().startsWith("!")) {
// assume it's ok
} else {
if (s1output.getPrimary() != output.getPrimary()) {
valid = false;
error(
XProcException.staticError(
7, "Output port " + output.getPort() + " has different primary status."));
}
}
} else {
valid = false;
error(XProcException.staticError(7, "Output port " + output.getPort() + " is extra."));
}
}
for (String port : outputs.keySet()) {
if (!port.endsWith("|") && step.getOutput(port) == null) {
valid = false;
error(XProcException.staticError(7, "Output port " + port + " missing."));
}
}
}
} else {
error(XProcException.staticError(27, "Choose must contain when or otherwise"));
}
return valid && super.validBindings();
}
protected boolean validOutputBinding() {
// The output of choose is special.
return true;
}
}