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author | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
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committer | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
commit | 554fd8c5195424bdbcabf5de30fdc183aba391bd (patch) | |
tree | 976dc5ab7fddf506dadce60ae936f43f58787092 /libjava/classpath/gnu/xml/transform/SystemPropertyFunction.java | |
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Diffstat (limited to 'libjava/classpath/gnu/xml/transform/SystemPropertyFunction.java')
-rw-r--r-- | libjava/classpath/gnu/xml/transform/SystemPropertyFunction.java | 140 |
1 files changed, 140 insertions, 0 deletions
diff --git a/libjava/classpath/gnu/xml/transform/SystemPropertyFunction.java b/libjava/classpath/gnu/xml/transform/SystemPropertyFunction.java new file mode 100644 index 000000000..f314227e6 --- /dev/null +++ b/libjava/classpath/gnu/xml/transform/SystemPropertyFunction.java @@ -0,0 +1,140 @@ +/* SystemPropertyFunction.java -- + Copyright (C) 2004 Free Software Foundation, Inc. + +This file is part of GNU Classpath. + +GNU Classpath is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2, or (at your option) +any later version. + +GNU Classpath 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 for more details. + +You should have received a copy of the GNU General Public License +along with GNU Classpath; see the file COPYING. If not, write to the +Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA +02110-1301 USA. + +Linking this library statically or dynamically with other modules is +making a combined work based on this library. Thus, the terms and +conditions of the GNU General Public License cover the whole +combination. + +As a special exception, the copyright holders of this library give you +permission to link this library with independent modules to produce an +executable, regardless of the license terms of these independent +modules, and to copy and distribute the resulting executable under +terms of your choice, provided that you also meet, for each linked +independent module, the terms and conditions of the license of that +module. An independent module is a module which is not derived from +or based on this library. If you modify this library, you may extend +this exception to your version of the library, but you are not +obligated to do so. If you do not wish to do so, delete this +exception statement from your version. */ + +package gnu.xml.transform; + +import java.util.ArrayList; +import java.util.Iterator; +import java.util.List; +import javax.xml.namespace.QName; +import javax.xml.xpath.XPathFunction; +import javax.xml.xpath.XPathFunctionException; +import org.w3c.dom.Node; +import gnu.xml.xpath.Expr; +import gnu.xml.xpath.Function; + +/** + * The XSLT <code>system-property()</code>function. + * + * @author <a href='mailto:dog@gnu.org'>Chris Burdess</a> + */ +final class SystemPropertyFunction + extends Expr + implements XPathFunction, Function +{ + + List args; + + public Object evaluate(List args) + throws XPathFunctionException + { + String name = (String) args.get(0); + return systemProperty(QName.valueOf(name)); + } + + public void setArguments(List args) + { + this.args = args; + } + + public Object evaluate(Node context, int pos, int len) + { + int arity = args.size(); + List values = new ArrayList(arity); + for (int i = 0; i < arity; i++) + { + Expr arg = (Expr) args.get(i); + values.add(arg.evaluate(context, pos, len)); + } + String name = _string(context, values.get(0)); + return systemProperty(QName.valueOf(name)); + } + + Object systemProperty(QName name) + { + String localName = name.getLocalPart(); + String prefix = name.getPrefix(); + String uri = name.getNamespaceURI(); + if (Stylesheet.XSL_NS.equals(uri) || + "xsl".equals(prefix)) + { + if ("version".equals(localName)) + { + return new Double(1.0d); + } + else if ("vendor".equals(localName)) + { + return "The Free Software Foundation"; + } + else if ("vendor-url".equals(localName)) + { + return "http://www.gnu.org/"; + } + else + { + return ""; + } + } + return System.getProperty(localName); + } + + public Expr clone(Object context) + { + SystemPropertyFunction f = new SystemPropertyFunction(); + int len = args.size(); + List args2 = new ArrayList(len); + for (int i = 0; i < len; i++) + { + args2.add(((Expr) args.get(i)).clone(context)); + } + f.setArguments(args2); + return f; + } + + public boolean references(QName var) + { + for (Iterator i = args.iterator(); i.hasNext(); ) + { + if (((Expr) i.next()).references(var)) + { + return true; + } + } + return false; + } + +} |