jp.go.nict.langrid.commons.jxpath.BPELUtil.java Source code

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Here is the source code for jp.go.nict.langrid.commons.jxpath.BPELUtil.java

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/*
 * $Id$
 *
 * This is a program for Language Grid Core Node. This combines multiple language resources and provides composite language services.
 * Copyright (C) 2005-2008 NICT Language Grid Project.
 *
 * This program is free software: you can redistribute it and/or modify it 
 * under the terms of the GNU Lesser General Public License as published by 
 * the Free Software Foundation, either version 2.1 of the License, or (at 
 * your option) any later version.
 *
 * This program 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 Lesser 
 * General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License 
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
package jp.go.nict.langrid.commons.jxpath;

import java.io.IOException;
import java.io.InputStream;
import java.net.URI;
import java.net.URISyntaxException;

import jp.go.nict.langrid.commons.ws.Constants;

import org.apache.commons.jxpath.JXPathContext;
import org.xml.sax.SAXException;

/**
 * 
 * 
 * @author $Author$
 * @version $Revision$
 */
public class BPELUtil {
    /**
     * 
     * 
     */
    public static JXPathContext newBPELContext(InputStream bpel, String bpelNSPrefix)
            throws IOException, SAXException {
        JXPathContext context = JXPathUtil.newXMLContext(bpel);
        context.setLenient(true);
        context.registerNamespace(bpelNSPrefix, Constants.BPEL_URI);
        return context;
    }

    /**
     * 
     * 
     */
    public static JXPathContext newWSBPEL_2_0_Context(InputStream bpel, String bpelNSPrefix)
            throws IOException, SAXException {
        JXPathContext context = JXPathUtil.newXMLContext(bpel);
        context.setLenient(true);
        context.registerNamespace(bpelNSPrefix, Constants.WSBPEL_2_0_URI);
        return context;
    }

    /**
     * 
     * 
     */
    public static URI getTargetNamespace(InputStream body) throws IOException, SAXException, URISyntaxException {
        String value = (String) newBPELContext(body, "_").getValue("_:process/@targetNamespace");
        if (value == null)
            return null;
        return new URI(value);
    }

    /**
     * 
     * 
     */
    public static URI getWSBPEL_2_0_TargetNamespace(InputStream body)
            throws IOException, SAXException, URISyntaxException {
        String value = (String) newWSBPEL_2_0_Context(body, "_").getValue("_:process/@targetNamespace");
        if (value == null)
            return null;
        return new URI(value);
    }

    /**
     * 
     * 
     */
    public static String getProcessName(InputStream body) throws IOException, SAXException {
        return (String) newBPELContext(body, "_").getValue("_:process/@name");
    }
}