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/*
*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*
*/
package org.apache.qpid.gentools;
import java.io.PrintStream;
import java.util.Iterator;
import java.util.TreeSet;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
/**
* @author kpvdr
* This class implements a set collection for {@link #AmqpConstant AmqpConstant} objects, being the collection
* of constants accumulated from various AMQP specification files processed. Each name occurs once only in the set.
* The {@link #AmqpConstant AmqpConstant} objects (derived from {@link java.util#TreeMap TreeMap}) keep track of
* the value and version(s) assigned to this name.
*/
@SuppressWarnings("serial")
public class AmqpConstantSet extends TreeSet<AmqpConstant> implements Printable, NodeAware, Comparable<AmqpConstantSet>
{
public LanguageConverter converter;
public AmqpConstantSet(LanguageConverter converter)
{
this.converter = converter;
this.converter.setConstantSet(this);
}
/* (non-Javadoc)
* @see org.apache.qpid.gentools.NodeAware#addFromNode(org.w3c.dom.Node, int, org.apache.qpid.gentools.AmqpVersion)
*/
public void addFromNode(Node node, int ordinal, AmqpVersion version)
throws AmqpParseException, AmqpTypeMappingException
{
NodeList nodeList = node.getChildNodes();
for (int i=0; i<nodeList.getLength(); i++)
{
Node childNode = nodeList.item(i);
if (childNode.getNodeName().compareTo(Utils.ELEMENT_CONSTANT) == 0)
{
String name = converter.prepareDomainName(Utils.getNamedAttribute(childNode, Utils.ATTRIBUTE_NAME));
String value = Utils.getNamedAttribute(childNode, Utils.ATTRIBUTE_VALUE);
// Find this name in the existing set of objects
boolean foundName = false;
Iterator<AmqpConstant> cItr = iterator();
while (cItr.hasNext() && !foundName)
{
AmqpConstant thisConstant = cItr.next();
if (name.compareTo(thisConstant.name) == 0)
{
foundName = true;
thisConstant.versionSet.add(version);
// Now, find the value in the map
boolean foundValue = false;
Iterator<String> vItr = thisConstant.keySet().iterator();
while (vItr.hasNext() && !foundValue)
{
String thisValue = vItr.next();
if (value.compareTo(thisValue) == 0)
{
foundValue = true;
// Add this version to existing version set.
AmqpVersionSet versionSet = thisConstant.get(thisValue);
versionSet.add(version);
}
}
// Check that the value was found - if not, add it
if (!foundValue)
{
thisConstant.put(value, new AmqpVersionSet(version));
}
}
}
// Check that the name was found - if not, add it
if (!foundName)
{
add(new AmqpConstant(name, value, version));
}
}
}
}
/* (non-Javadoc)
* @see org.apache.qpid.gentools.Printable#print(java.io.PrintStream, int, int)
*/
public void print(PrintStream out, int marginSize, int tabSize)
{
out.println(Utils.createSpaces(marginSize) + "Constants: ");
Iterator<AmqpConstant> cItr = iterator();
while (cItr.hasNext())
{
cItr.next().print(out, marginSize, tabSize);
}
}
/* (non-Javadoc)
* @see java.lang.Comparable#compareTo(java.lang.Object)
*/
public int compareTo(AmqpConstantSet other)
{
int res = size() - other.size();
if (res != 0)
return res;
Iterator<AmqpConstant> cItr = iterator();
Iterator<AmqpConstant> oItr = other.iterator();
while (cItr.hasNext() && oItr.hasNext())
{
AmqpConstant constant = cItr.next();
AmqpConstant oConstant = oItr.next();
res = constant.compareTo(oConstant);
if (res != 0)
return res;
}
return 0;
}
}
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