/*
* File: GetNextPID.java
*
* Copyright 2009 2DC
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package melcoe.fedora.pep.rest.objectshandlers;
import java.io.IOException;
import java.net.URI;
import java.util.HashMap;
import java.util.Map;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import melcoe.fedora.pep.PEPException;
import melcoe.fedora.pep.rest.filters.AbstractFilter;
import melcoe.fedora.util.LogUtil;
import org.apache.log4j.Logger;
import com.sun.xacml.attr.AnyURIAttribute;
import com.sun.xacml.attr.AttributeValue;
import com.sun.xacml.attr.IntegerAttribute;
import com.sun.xacml.attr.StringAttribute;
import com.sun.xacml.ctx.RequestCtx;
import fedora.common.Constants;
/**
* Handles the GetNextPID operation.
*
* @author nish.naidoo@gmail.com
*/
public class GetNextPID
extends AbstractFilter {
private static Logger log = Logger.getLogger(GetNextPID.class.getName());
/**
* Default constructor.
*
* @throws PEPException
*/
public GetNextPID()
throws PEPException {
super();
}
/*
* (non-Javadoc)
* @see
* melcoe.fedora.pep.rest.filters.RESTFilter#handleRequest(javax.servlet
* .http.HttpServletRequest, javax.servlet.http.HttpServletResponse)
*/
public RequestCtx handleRequest(HttpServletRequest request,
HttpServletResponse response)
throws IOException, ServletException {
if (log.isDebugEnabled()) {
log.debug(this.getClass().getName() + "/handleRequest!");
}
int numPids = -1;
String numPidsStr = request.getParameter("numPIDs");
if (numPidsStr != null && !"".equals(numPidsStr)) {
numPids = Integer.valueOf(numPidsStr);
}
String pidNamespace = request.getParameter("namespace");
RequestCtx req = null;
Map<URI, AttributeValue> actions = new HashMap<URI, AttributeValue>();
Map<URI, AttributeValue> resAttr = new HashMap<URI, AttributeValue>();
try {
resAttr.put(Constants.OBJECT.PID.getURI(),
new StringAttribute("FedoraRepository"));
resAttr.put(new URI(XACML_RESOURCE_ID),
new AnyURIAttribute(new URI("FedoraRepository")));
if (numPids > 0) {
resAttr.put(Constants.OBJECT.N_PIDS.getURI(),
new IntegerAttribute(numPids));
}
if (pidNamespace != null && !"".equals(pidNamespace)) {
resAttr.put(Constants.OBJECT.NAMESPACE.getURI(),
new StringAttribute(pidNamespace));
}
actions.put(Constants.ACTION.ID.getURI(),
new StringAttribute(Constants.ACTION.GET_NEXT_PID
.getURI().toASCIIString()));
actions.put(Constants.ACTION.API.getURI(),
new StringAttribute(Constants.ACTION.APIM.getURI()
.toASCIIString()));
req =
getContextHandler().buildRequest(getSubjects(request),
actions,
resAttr,
getEnvironment(request));
LogUtil.statLog(request.getRemoteUser(),
Constants.ACTION.GET_NEXT_PID.getURI()
.toASCIIString(),
"FedoraRepository",
null);
} catch (Exception e) {
log.error(e.getMessage(), e);
throw new ServletException(e.getMessage(), e);
}
return req;
}
/*
* (non-Javadoc)
* @see
* melcoe.fedora.pep.rest.filters.RESTFilter#handleResponse(javax.servlet
* .http.HttpServletRequest, javax.servlet.http.HttpServletResponse)
*/
public RequestCtx handleResponse(HttpServletRequest request,
HttpServletResponse response)
throws IOException, ServletException {
return null;
}
}