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/*******************************************************************************
* ============LICENSE_START==================================================
* * org.onap.dmaap
* * ===========================================================================
* * Copyright © 2017 AT&T Intellectual Property. All rights reserved.
* * ===========================================================================
* * 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.
* * ============LICENSE_END====================================================
* *
* * ECOMP is a trademark and service mark of AT&T Intellectual Property.
* *
******************************************************************************/
package org.onap.dmaap.datarouter.provisioning;
import static org.onap.dmaap.datarouter.provisioning.utils.HttpServletUtils.sendResponseError;
import java.io.IOException;
import java.io.InvalidObjectException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.json.JSONObject;
import org.onap.dmaap.datarouter.provisioning.beans.EventLogRecord;
import org.onap.dmaap.datarouter.provisioning.beans.Group;
/**
* This servlet handles provisioning for the <groups> which is generated by the provisioning
* server to handle the creation and inspection of groups for FEEDS and SUBSCRIPTIONS.
*
* @author Vikram Singh
* @version $Id$
* @version $Id: Group.java,v 1.0 2016/07/19
*/
@SuppressWarnings("serial")
public class GroupServlet extends ProxyServlet {
public static final String MISSING_HEADER_MESSAGE = "Missing " + BEHALF_HEADER + " header.";
/**
* DELETE on the <GRUPS> -- not supported.
*/
@Override
public void doDelete(HttpServletRequest req, HttpServletResponse resp) {
String message = "DELETE not allowed for the GROUPS.";
EventLogRecord elr = new EventLogRecord(req);
elr.setMessage(message);
elr.setResult(HttpServletResponse.SC_METHOD_NOT_ALLOWED);
eventlogger.error(elr.toString());
sendResponseError(resp, HttpServletResponse.SC_METHOD_NOT_ALLOWED, message, eventlogger);
}
/**
* GET on the the list of groups to a feed/sub.
* See the <i>Groups Collection Query</i> section in the <b>Provisioning API</b>
* document for details on how this method should be invoked.
*/
@Override
public void doGet(HttpServletRequest req, HttpServletResponse resp) {
EventLogRecord elr = new EventLogRecord(req);
String message = isAuthorizedForProvisioning(req);
if (message != null) {
elr.setMessage(message);
elr.setResult(HttpServletResponse.SC_FORBIDDEN);
eventlogger.error(elr.toString());
sendResponseError(resp, HttpServletResponse.SC_FORBIDDEN, message, eventlogger);
return;
}
if (isProxyServer()) {
super.doGet(req, resp);
return;
}
String bhdr = req.getHeader(BEHALF_HEADER);
if (bhdr == null) {
elr.setMessage(MISSING_HEADER_MESSAGE);
elr.setResult(HttpServletResponse.SC_BAD_REQUEST);
eventlogger.error(elr.toString());
sendResponseError(resp, HttpServletResponse.SC_BAD_REQUEST, MISSING_HEADER_MESSAGE, eventlogger);
return;
}
int groupid = getIdFromPath(req);
if (groupid < 0) {
message = "Missing or bad group number.";
elr.setMessage(message);
elr.setResult(HttpServletResponse.SC_BAD_REQUEST);
eventlogger.error(elr.toString());
sendResponseError(resp, HttpServletResponse.SC_BAD_REQUEST, message, eventlogger);
return;
}
Group gup = Group.getGroupById(groupid);
// send response
elr.setResult(HttpServletResponse.SC_OK);
eventlogger.info(elr.toString());
resp.setStatus(HttpServletResponse.SC_OK);
resp.setContentType(GROUPFULL_CONTENT_TYPE);
try {
resp.getOutputStream().print(gup.asJSONObject().toString());
} catch (IOException ioe) {
eventlogger.error("PROV0121 GroupServlet.doGet: " + ioe.getMessage(), ioe);
}
}
/**
* PUT on the <GROUPS> -- not supported.
*/
@Override
public void doPut(HttpServletRequest req, HttpServletResponse resp) {
EventLogRecord elr = new EventLogRecord(req);
String message = isAuthorizedForProvisioning(req);
if (message != null) {
elr.setMessage(message);
elr.setResult(HttpServletResponse.SC_FORBIDDEN);
eventlogger.error(elr.toString());
sendResponseError(resp, HttpServletResponse.SC_FORBIDDEN, message, eventlogger);
return;
}
if (isProxyServer()) {
super.doPut(req, resp);
return;
}
String bhdr = req.getHeader(BEHALF_HEADER);
if (bhdr == null) {
elr.setMessage(MISSING_HEADER_MESSAGE);
elr.setResult(HttpServletResponse.SC_BAD_REQUEST);
eventlogger.error(elr.toString());
sendResponseError(resp, HttpServletResponse.SC_BAD_REQUEST, MISSING_HEADER_MESSAGE, eventlogger);
return;
}
int groupid = getIdFromPath(req);
if (groupid < 0) {
message = "Missing or bad groupid.";
elr.setMessage(message);
elr.setResult(HttpServletResponse.SC_BAD_REQUEST);
eventlogger.error(elr.toString());
sendResponseError(resp, HttpServletResponse.SC_BAD_REQUEST, message, eventlogger);
return;
}
Group oldgup = Group.getGroupById(groupid);
if (oldgup == null) {
message = "Missing or bad group number.";
elr.setMessage(message);
elr.setResult(HttpServletResponse.SC_NOT_FOUND);
eventlogger.error(elr.toString());
sendResponseError(resp, HttpServletResponse.SC_NOT_FOUND, message, eventlogger);
return;
}
// check content type is SUB_CONTENT_TYPE, version 1.0
ContentHeader ch = getContentHeader(req);
String ver = ch.getAttribute("version");
if (!ch.getType().equals(GROUP_BASECONTENT_TYPE) || !("1.0".equals(ver) || "2.0".equals(ver))) {
message = "Incorrect content-type";
elr.setMessage(message);
elr.setResult(HttpServletResponse.SC_UNSUPPORTED_MEDIA_TYPE);
eventlogger.error(elr.toString());
sendResponseError(resp, HttpServletResponse.SC_UNSUPPORTED_MEDIA_TYPE, message, eventlogger);
return;
}
JSONObject jo = getJSONfromInput(req);
if (jo == null) {
message = BAD_JSON;
elr.setMessage(message);
elr.setResult(HttpServletResponse.SC_BAD_REQUEST);
eventlogger.error(elr.toString());
sendResponseError(resp, HttpServletResponse.SC_BAD_REQUEST, message, eventlogger);
return;
}
if (intlogger.isDebugEnabled()) {
intlogger.debug(jo.toString());
}
Group gup;
try {
gup = new Group(jo);
} catch (InvalidObjectException e) {
message = e.getMessage();
elr.setMessage(message);
elr.setResult(HttpServletResponse.SC_BAD_REQUEST);
eventlogger.error(elr.toString(), e);
sendResponseError(resp, HttpServletResponse.SC_BAD_REQUEST, message, eventlogger);
return;
}
gup.setGroupid(oldgup.getGroupid());
Group gb2 = Group.getGroupMatching(gup, oldgup.getGroupid());
if (gb2 != null) {
eventlogger.warn("PROV0011 Creating a duplicate Group: " + gup.getName());
elr.setResult(HttpServletResponse.SC_BAD_REQUEST);
sendResponseError(resp, HttpServletResponse.SC_BAD_REQUEST,"Duplicate Group:" + gup.getName(), eventlogger);
return;
}
// Update Groups table entries
if (doUpdate(gup)) {
// send response
elr.setResult(HttpServletResponse.SC_OK);
eventlogger.info(elr.toString());
resp.setStatus(HttpServletResponse.SC_OK);
resp.setContentType(GROUPFULL_CONTENT_TYPE);
try {
resp.getOutputStream().print(gup.asJSONObject().toString());
} catch (IOException ioe) {
eventlogger.error("PROV0122 GroupServlet.doPut: " + ioe.getMessage(), ioe);
}
provisioningDataChanged();
} else {
// Something went wrong with the UPDATE
elr.setResult(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
eventlogger.error(elr.toString());
sendResponseError(resp, HttpServletResponse.SC_INTERNAL_SERVER_ERROR, DB_PROBLEM_MSG, eventlogger);
}
}
/**
* POST on the <groups> -- create a new GROUPS to a feed.
* See the <i>Creating a GROUPS</i> section in the <b>Provisioning API</b>
* document for details on how this method should be invoked.
*/
@Override
public void doPost(HttpServletRequest req, HttpServletResponse resp) {
EventLogRecord elr = new EventLogRecord(req);
String message = isAuthorizedForProvisioning(req);
if (message != null) {
elr.setMessage(message);
elr.setResult(HttpServletResponse.SC_FORBIDDEN);
eventlogger.error(elr.toString());
sendResponseError(resp, HttpServletResponse.SC_FORBIDDEN, message, eventlogger);
return;
}
if (isProxyServer()) {
super.doPost(req, resp);
return;
}
String bhdr = req.getHeader(BEHALF_HEADER);
if (bhdr == null) {
elr.setMessage(MISSING_HEADER_MESSAGE);
elr.setResult(HttpServletResponse.SC_BAD_REQUEST);
eventlogger.error(elr.toString());
sendResponseError(resp, HttpServletResponse.SC_BAD_REQUEST, MISSING_HEADER_MESSAGE, eventlogger);
return;
}
// check content type is SUB_CONTENT_TYPE, version 1.0
ContentHeader ch = getContentHeader(req);
String ver = ch.getAttribute("version");
if (!ch.getType().equals(GROUP_BASECONTENT_TYPE) || !("1.0".equals(ver) || "2.0".equals(ver))) {
intlogger.debug("Content-type is: " + req.getHeader("Content-Type"));
message = "Incorrect content-type";
elr.setMessage(message);
elr.setResult(HttpServletResponse.SC_UNSUPPORTED_MEDIA_TYPE);
eventlogger.error(elr.toString());
sendResponseError(resp, HttpServletResponse.SC_UNSUPPORTED_MEDIA_TYPE, message, eventlogger);
return;
}
JSONObject jo = getJSONfromInput(req);
if (jo == null) {
message = BAD_JSON;
elr.setMessage(message);
elr.setResult(HttpServletResponse.SC_BAD_REQUEST);
eventlogger.error(elr.toString());
sendResponseError(resp, HttpServletResponse.SC_BAD_REQUEST, message, eventlogger);
return;
}
if (intlogger.isDebugEnabled()) {
intlogger.debug(jo.toString());
}
Group gup;
try {
gup = new Group(jo);
} catch (InvalidObjectException e) {
message = e.getMessage();
elr.setMessage(message);
elr.setResult(HttpServletResponse.SC_BAD_REQUEST);
eventlogger.error(elr.toString(), e);
sendResponseError(resp, HttpServletResponse.SC_BAD_REQUEST, message, eventlogger);
return;
}
// Check if this group already exists; not an error (yet), just warn
Group gb2 = Group.getGroupMatching(gup);
if (gb2 != null) {
eventlogger.warn("PROV0011 Creating a duplicate Group: " + gup.getName());
elr.setResult(HttpServletResponse.SC_BAD_REQUEST);
sendResponseError(resp, HttpServletResponse.SC_BAD_REQUEST,"Duplicate Group:" + gup.getName(), eventlogger);
return;
}
// Create GROUPS table entries
if (doInsert(gup)) {
// send response
elr.setResult(HttpServletResponse.SC_CREATED);
eventlogger.info(elr.toString());
resp.setStatus(HttpServletResponse.SC_CREATED);
resp.setContentType(GROUPFULL_CONTENT_TYPE);
try {
resp.getOutputStream().print(gup.asJSONObject().toString());
} catch (IOException ioe) {
eventlogger.error("PROV0122 GroupServlet.doPost: " + ioe.getMessage(), ioe);
}
provisioningDataChanged();
} else {
// Something went wrong with the INSERT
elr.setResult(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
eventlogger.error(elr.toString());
sendResponseError(resp, HttpServletResponse.SC_INTERNAL_SERVER_ERROR, DB_PROBLEM_MSG, eventlogger);
}
}
}
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