/*
* Copyright (c) 2011 Imaginea Technologies Private Ltd.
* Hyderabad, India
*
* 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 com.imaginea.mongodb.controllers;
import com.imaginea.mongodb.exceptions.ErrorCodes;
import com.imaginea.mongodb.exceptions.InvalidHTTPRequestException;
import com.imaginea.mongodb.services.CollectionService;
import com.imaginea.mongodb.services.impl.AuthServiceImpl;
import com.imaginea.mongodb.services.impl.CollectionServiceImpl;
import com.mongodb.Mongo;
import org.apache.log4j.Logger;
import javax.servlet.http.HttpServletRequest;
import javax.ws.rs.*;
import javax.ws.rs.core.Context;
import javax.ws.rs.core.MediaType;
import java.util.Set;
/**
* Defines resources for performing create/drop operations on collections
* present inside databases in Mongo we are currently connected to. Also provide
* resources to get list of all collections in a database present in mongo and
* also statistics of a particular collection.
* <p/>
* These resources map different HTTP requests made by the client to access these
* resources to services file which performs these operations. The resources
* also form a JSON response using the output received from the services files.
* GET and POST request resources for collections are defined here. For PUT and
* DELETE functionality , a POST request with an action parameter taking values
* PUT and DELETE is made.
*
* @author Rachit Mittal
* @since 4 July 2011
*/
@Path("/{dbName}/collection")
public class CollectionController extends BaseController {
private final static Logger logger = Logger.getLogger(CollectionController.class);
/**
* Maps GET Request to get list of collections inside databases present in
* mongo db to a service function that returns the list. Also forms the JSON
* response for this request and sent it to client. In case of any exception
* from the service files an error object if formed.
*
* @param dbName Name of database
* @param selectedCollection Name of selected Collection
* @param connectionId Mongo Db Configuration provided by user to connect to.
* @param request Get the HTTP request context to extract session parameters
* @return String of JSON Format with list of all collections.
*/
@GET
@Produces(MediaType.APPLICATION_JSON)
@Path("/{collectionName}/isCapped")
public String isCappedCollection(@PathParam("dbName") final String dbName, @PathParam("collectionName") final String selectedCollection,
@QueryParam("connectionId") final String connectionId, @Context final HttpServletRequest request) {
String response = new ResponseTemplate().execute(logger, connectionId, request, new ResponseCallback() {
public Object execute() throws Exception {
Mongo mongoInstance = AuthServiceImpl.getInstance().getMongoInstance(connectionId);
return mongoInstance.getDB(dbName).getCollection(selectedCollection).isCapped();
}
});
return response;
}
/**
* Maps GET Request to get list of collections inside databases present in
* mongo db to a service function that returns the list. Also forms the JSON
* response for this request and sent it to client. In case of any exception
* from the service files an error object if formed.
*
* @param dbName Name of database
* @param connectionId Mongo Db Configuration provided by user to connect to.
* @param request Get the HTTP request context to extract session parameters
* @return String of JSON Format with list of all collections.
*/
@GET
@Produces(MediaType.APPLICATION_JSON)
public String getCollList(@PathParam("dbName") final String dbName, @QueryParam("connectionId") final String connectionId, @Context final HttpServletRequest request) {
String response = new ResponseTemplate().execute(logger, connectionId, request, new ResponseCallback() {
public Object execute() throws Exception {
CollectionService collectionService = new CollectionServiceImpl(connectionId);
return collectionService.getCollList(dbName);
}
});
return response;
}
/**
* Maps POST Request to perform create/drop on collections inside databases
* present in mongo db to a service function that returns the list. Also
* forms the JSON response for this request and sent it to client. In case
* of any exception from the service files an error object if formed.
*
* @param dbName Name of Database
* @param isCapped Specify if the collection is capped
* @param capSize Specify the capSize of collection
* @param maxDocs specify maximum no of documents in the collection
* @param selectedCollection Name of collection for which to perform create/drop operation
* depending on action parameter
* @param action Query Parameter with value PUT for identifying a create
* database request and value DELETE for dropping a database.
* @param request Get the HTTP request context to extract session parameters
* @param connectionId MongoDB Configuration provided by user to connect to.
* @return String with status of operation performed.
*/
@POST
@Path("/{collectionName}")
@Produces(MediaType.APPLICATION_JSON)
public String postCollRequest(@PathParam("dbName") final String dbName, @PathParam("collectionName") final String selectedCollection,
@FormParam("newCollName") final String newCollName, @FormParam("updateColl") final String updateColl,
@FormParam("isCapped") final String isCapped, @FormParam("capSize") final int capSize,
@FormParam("maxDocs") final int maxDocs, @FormParam("autoIndexId") final String autoIndexId,
@QueryParam("connectionId") final String connectionId, @QueryParam("action") final String action,
@Context final HttpServletRequest request) {
if (action == null) {
InvalidHTTPRequestException e = new InvalidHTTPRequestException(ErrorCodes.ACTION_PARAMETER_ABSENT, "ACTION_PARAMETER_ABSENT");
return formErrorResponse(logger, e);
}
String response = new ResponseTemplate().execute(logger, connectionId, request, new ResponseCallback() {
public Object execute() throws Exception {
CollectionService collectionService = new CollectionServiceImpl(connectionId);
String status = null;
RequestMethod method = null;
for (RequestMethod m : RequestMethod.values()) {
if ((m.toString()).equals(action)) {
method = m;
break;
}
}
switch (method) {
case PUT: {
if (updateColl.equals("false")) {
status = collectionService.insertCollection(dbName, newCollName, (isCapped != null && isCapped.equals("on")), capSize, maxDocs, (autoIndexId != null && autoIndexId.equals("on")));
} else {
status = collectionService.updateCollection(dbName, selectedCollection, newCollName, (isCapped != null && isCapped.equals("on")), capSize, maxDocs, (autoIndexId != null && autoIndexId.equals("on")));
}
break;
}
case DELETE: {
status = collectionService.deleteCollection(dbName, selectedCollection);
break;
}
default: {
status = "Action parameter value is wrong";
break;
}
}
return status;
}
});
return response;
}
}