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This module contains the Metro runtime code.
/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright (c) 2007-2010 Oracle and/or its affiliates. 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://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
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* language governing permissions and limitations under the License.
*
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* file and include the License file at glassfish/bootstrap/legal/LICENSE.txt.
*
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package org.glassfish.gmbal.impl ;
import java.util.HashMap;
import java.util.Map;
import java.util.SortedMap;
import java.util.TreeMap;
import javax.management.Descriptor;
import javax.management.modelmbean.DescriptorSupport;
public class DescriptorUtility {
private DescriptorUtility() {}
public static final Descriptor EMPTY_DESCRIPTOR =
makeDescriptor( new HashMap() );
public static Descriptor makeDescriptor( Map fields ) {
if (fields == null) {
throw Exceptions.self.nullMap() ;
}
SortedMap map =
new TreeMap(String.CASE_INSENSITIVE_ORDER);
for (Map.Entry entry : fields.entrySet()) {
String name = entry.getKey();
if (name == null || name.equals("")) {
throw Exceptions.self.badFieldName() ;
}
if (map.containsKey(name)) {
throw Exceptions.self.duplicateFieldName( name ) ;
}
map.put(name, entry.getValue());
}
int size = map.size();
String[] names = map.keySet().toArray(new String[size]);
Object[] values = map.values().toArray(new Object[size]);
return new DescriptorSupport( names, values ) ;
}
// If descriptors contain the same names, later descriptors in the
// sequence override the earlier ones.
public static Descriptor union(Descriptor... descriptors) {
Map map =
new TreeMap(String.CASE_INSENSITIVE_ORDER);
for (Descriptor d : descriptors) {
if (d != null) {
String[] names = d.getFieldNames();
for (String n : names) {
Object v = d.getFieldValue(n);
map.put(n, v);
}
}
}
return makeDescriptor(map);
}
}