org/objectweb/proactive/core/descriptor/xml/FileTransferDefinitionsHandler.java

/* 
 * ################################################################
 * 
 * ProActive: The Java(TM) library for Parallel, Distributed, 
 *            Concurrent computing with Security and Mobility
 * 
 * Copyright (C) 1997-2007 INRIA/University of Nice-Sophia Antipolis
 * Contact: proactive@objectweb.org
 * 
 * This library 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 any later version.
 *  
 * This library 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 library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307
 * USA
 *  
 *  Initial developer(s):               The ProActive Team
 *                        http://www.inria.fr/oasis/ProActive/contacts.html
 *  Contributor(s): 
 * 
 * ################################################################
 */ 
package org.objectweb.proactive.core.descriptor.xml;

import org.objectweb.proactive.core.descriptor.data.ProActiveDescriptor;
import org.objectweb.proactive.core.process.filetransfer.FileTransferDefinition;
import org.objectweb.proactive.core.xml.handler.BasicUnmarshaller;
import org.objectweb.proactive.core.xml.handler.PassiveCompositeUnmarshaller;
import org.objectweb.proactive.core.xml.handler.UnmarshallerHandler;
import org.objectweb.proactive.core.xml.io.Attributes;
import org.xml.sax.SAXException;


public class FileTransferDefinitionsHandler extends PassiveCompositeUnmarshaller
    implements ProActiveDescriptorConstants {
    protected ProActiveDescriptor proActiveDescriptor;

    public FileTransferDefinitionsHandler(
        ProActiveDescriptor proActiveDescriptor) {
        super(false);
        this.proActiveDescriptor = proActiveDescriptor;
        addHandler(FILE_TRANSFER_TAG, new FileTransferHandler());
    }

    protected void notifyEndActiveHandler(String name,
        UnmarshallerHandler activeHandler) throws SAXException {
    }

    public class FileTransferHandler extends PassiveCompositeUnmarshaller
        implements ProActiveDescriptorConstants {
        protected FileTransferDefinition fileTransfer;

        public FileTransferHandler() {
            super(false);
            addHandler(FILE_TRANSFER_FILE_TAG, new FileHandler());
            addHandler(FILE_TRANSFER_DIR_TAG, new DirHandler());

            //This will be initalized once we have the ID in in the startContextElement(...)
            fileTransfer = null;
        }

        public void startContextElement(String name, Attributes attributes)
            throws SAXException {
            String fileTransferId = attributes.getValue("id");

            if (!checkNonEmpty(fileTransferId)) {
                throw new org.xml.sax.SAXException(
                    "FileTransfer defined without id");
            }

            if (fileTransferId.equalsIgnoreCase(FILE_TRANSFER_IMPLICT_KEYWORD)) {
                throw new org.xml.sax.SAXException(
                    "FileTransferDefinition id attribute is using illegal keyword: " +
                    FILE_TRANSFER_IMPLICT_KEYWORD);
            }

            /* We get a reference on the FileTransfer object with this ID.
             * If this object doesn't exist the createFileTransfer will create
             * one. All future calls on this method will then return this same
             * instance for this ID.
             */
            fileTransfer = proActiveDescriptor.getFileTransfer(fileTransferId);
        }

        public Object getResultObject() throws SAXException {
            return fileTransfer; //not really used for now
        }

        public class FileHandler extends BasicUnmarshaller
            implements ProActiveDescriptorConstants {
            public void startContextElement(String name, Attributes attributes)
                throws SAXException {
                String source = attributes.getValue("src");
                String dest = attributes.getValue("dest");

                if (!checkNonEmpty(source)) {
                    throw new org.xml.sax.SAXException(
                        "Source filename not specified for file tag");
                }

                if (!checkNonEmpty(dest)) {
                    dest = source;
                }

                //fileTransfer variable is in the parent class
                fileTransfer.addFile(source, dest);
            }
        }

        public class DirHandler extends BasicUnmarshaller
            implements ProActiveDescriptorConstants {
            public void startContextElement(String name, Attributes attributes)
                throws SAXException {
                String source = attributes.getValue("src");
                String dest = attributes.getValue("dest");
                String include = attributes.getValue("include");
                String exclude = attributes.getValue("exclude");

                if (!checkNonEmpty(source)) {
                    throw new org.xml.sax.SAXException(
                        "Source filename not specified for file tag");
                }

                if (!checkNonEmpty(dest)) {
                    dest = source;
                }
                if (!checkNonEmpty(include)) {
                    include = "*";
                }
                if (!checkNonEmpty(exclude)) {
                    exclude = "";
                }

                //fileTransfer variable is in the parent class
                fileTransfer.addDir(source, dest, include, exclude);
            }
        }
    }
}

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