/*******************************************************************************
*
* Copyright (c) 2005, 2009 Wessex Water Services Limited
*
* This file is part of Chellow.
*
* Chellow 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 3 of the License, or
* (at your option) any later version.
*
* Chellow 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 Chellow. If not, see <http://www.gnu.org/licenses/>.
*
*******************************************************************************/
package net.sf.chellow.ui;
import java.io.IOException;
import java.net.URI;
import java.util.HashMap;
import java.util.Map;
import net.sf.chellow.monad.HttpException;
import net.sf.chellow.monad.InternalException;
import net.sf.chellow.monad.Invocation;
import net.sf.chellow.monad.MethodNotAllowedException;
import net.sf.chellow.monad.MonadUtils;
import net.sf.chellow.monad.Urlable;
import net.sf.chellow.monad.UserException;
import net.sf.chellow.monad.XmlDescriber;
import net.sf.chellow.monad.XmlTree;
import net.sf.chellow.monad.types.MonadUri;
import net.sf.chellow.monad.types.UriPathElement;
import org.apache.commons.fileupload.FileItem;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
public class GeneralImports implements Urlable, XmlDescriber {
public static final UriPathElement URI_ID;
private static long processSerial = 0;
public static final Map<Long, GeneralImport> processes = new HashMap<Long, GeneralImport>();
static {
try {
URI_ID = new UriPathElement("general-imports");
} catch (HttpException e) {
throw new RuntimeException(e);
}
}
public GeneralImports() {
}
public UriPathElement getUriId() {
return URI_ID;
}
public MonadUri getEditUri() throws HttpException {
return Chellow.ROOT_URI.resolve(getUriId()).append("/");
}
public void httpGet(Invocation inv) throws HttpException {
inv.sendOk(document());
}
private Document document() throws HttpException {
Document doc = MonadUtils.newSourceDocument();
Element source = doc.getDocumentElement();
Element processesElement = toXml(doc);
source.appendChild(processesElement);
for (GeneralImport process : processes.values()) {
processesElement.appendChild(process.toXml(doc));
}
return doc;
}
public void httpPost(Invocation inv) throws HttpException {
FileItem fileItem = inv.getFileItem("import-file");
GeneralImport process;
if (!inv.isValid()) {
throw new UserException(document());
}
try {
long processId = processSerial++;
try {
String fileName = fileItem.getName();
int idx = fileName.indexOf(".");
if (idx == -1) {
throw new UserException(
"The file name must contain a '.' character.");
}
String extension = fileName.substring(idx + 1);
if (extension.length() != 3) {
throw new UserException("The file name extension '" + extension
+ "' must be 3 characters long.");
}
process = new GeneralImport(getEditUri().resolve(
new UriPathElement(Long.toString(processId))).append(
"/"), fileItem.getInputStream(), extension);
} catch (IOException e) {
throw new InternalException(e);
}
processes.put(processId, process);
} catch (HttpException e) {
e.setDocument(document());
throw e;
}
process.start();
inv.sendSeeOther(process.getEditUri());
}
public Urlable getChild(UriPathElement urlId) throws HttpException {
return processes.get(Long.parseLong(urlId.toString()));
}
public Element toXml(Document doc) throws HttpException {
Element element = doc.createElement("general-imports");
return element;
}
public Node toXml(Document doc, XmlTree tree) throws HttpException {
return null;
}
@Override
public void httpDelete(Invocation inv) throws HttpException {
throw new MethodNotAllowedException();
}
@Override
public URI getViewUri() throws HttpException {
// TODO Auto-generated method stub
return null;
}
}