/*
* Copyright (c) 2005, 2014, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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*/
/*
* $Id: XPathFilterParameterSpec.java,v 1.4 2005/05/10 16:40:17 mullan Exp $
*/
package javax.xml.crypto.dsig.spec;
import javax.xml.crypto.dsig.Transform;
import java.util.Collections;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
/**
* Parameters for the <a href="http://www.w3.org/TR/xmldsig-core/#sec-XPath">
* XPath Filtering Transform Algorithm</a>.
* The parameters include the XPath expression and an optional <code>Map</code>
* of additional namespace prefix mappings. The XML Schema Definition of
* the XPath Filtering transform parameters is defined as:
* <pre><code>
* <element name="XPath" type="string"/>
* </code></pre>
*
* @author Sean Mullan
* @author JSR 105 Expert Group
* @since 1.6
* @see Transform
*/
public final class XPathFilterParameterSpec implements TransformParameterSpec {
private final String xPath;
private final Map<String,String> nsMap;
/**
* Creates an <code>XPathFilterParameterSpec</code> with the specified
* XPath expression.
*
* @param xPath the XPath expression to be evaluated
* @throws NullPointerException if <code>xPath</code> is <code>null</code>
*/
public XPathFilterParameterSpec(String xPath) {
if (xPath == null) {
throw new NullPointerException();
}
this.xPath = xPath;
this.nsMap = Collections.emptyMap();
}
/**
* Creates an <code>XPathFilterParameterSpec</code> with the specified
* XPath expression and namespace map. The map is copied to protect against
* subsequent modification.
*
* @param xPath the XPath expression to be evaluated
* @param namespaceMap the map of namespace prefixes. Each key is a
* namespace prefix <code>String</code> that maps to a corresponding
* namespace URI <code>String</code>.
* @throws NullPointerException if <code>xPath</code> or
* <code>namespaceMap</code> are <code>null</code>
* @throws ClassCastException if any of the map's keys or entries are not
* of type <code>String</code>
*/
public XPathFilterParameterSpec(String xPath, Map<String,String> namespaceMap) {
if (xPath == null || namespaceMap == null) {
throw new NullPointerException();
}
this.xPath = xPath;
Map<String,String> tempMap = Collections.checkedMap(new HashMap<>(),
String.class,
String.class);
tempMap.putAll(namespaceMap);
this.nsMap = Collections.unmodifiableMap(tempMap);
}
/**
* Returns the XPath expression to be evaluated.
*
* @return the XPath expression to be evaluated
*/
public String getXPath() {
return xPath;
}
/**
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