Copy.java

/*
 * Copyright (c) 2013, WSO2 Inc. (http://www.wso2.org) 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.
 */

package org.wso2.carbon.registry.rest.api;

import com.wordnik.swagger.annotations.Api;
import com.wordnik.swagger.annotations.ApiOperation;
import com.wordnik.swagger.annotations.ApiResponse;
import com.wordnik.swagger.annotations.ApiResponses;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.wso2.carbon.context.PrivilegedCarbonContext;
import org.wso2.carbon.registry.core.Registry;
import org.wso2.carbon.registry.core.exceptions.RegistryException;
import org.wso2.carbon.registry.rest.api.security.RestAPIAuthContext;
import org.wso2.carbon.registry.rest.api.security.RestAPISecurityUtils;

import javax.ws.rs.HeaderParam;
import javax.ws.rs.POST;
import javax.ws.rs.Path;
import javax.ws.rs.QueryParam;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.Response;


/**
 * This class to handle resource copy functions according to the REST verbs.
 */
@Path("/copy")
@Api(value = "/copy",
     description = "Rest api for doing copy operations on resources",
     produces = MediaType.APPLICATION_JSON)
public class Copy extends RegistryRestSuper {
    Log log = LogFactory.getLog(Copy.class);

    /**
     * This method to copy resource to some target location according to REST verb POST.
     *
     * @param resourcePath    - Source path of the resource.
     * @param destinationPath - Destination path of the resource.
     * @param JWTToken        - Access token.
     * @return - HTTP 204 No Content if success.
     */
    @POST
    @ApiOperation(value = "Copy source resource to target path",
                  httpMethod = "POST",
                  notes = "Copy source resource to target path")
    @ApiResponses(value = { @ApiResponse(code = 204, message = "Resource copied successfully"),
                            @ApiResponse(code = 401, message = "Invalid credentials provided"),
                            @ApiResponse(code = 404, message = "Specified resource not found"),
                            @ApiResponse(code = 500, message = "Internal server error occurred")})
    public Response copyResource(@QueryParam("path") String resourcePath,
                                 @QueryParam("destination") String destinationPath,
                                 @HeaderParam("X-JWT-Assertion") String JWTToken) {

        PrivilegedCarbonContext carbonContext = PrivilegedCarbonContext.getThreadLocalCarbonContext();
        RestAPIAuthContext authContext = RestAPISecurityUtils.getAuthContext(carbonContext, JWTToken);

        if (!authContext.isAuthorized()) {
            return Response.status(Response.Status.UNAUTHORIZED).build();
        }

        try {

            Registry registry = getUserRegistry(authContext.getUserName(), authContext.getTenantId());
            if (!registry.resourceExists(resourcePath)) {
                return Response.status(Response.Status.NOT_FOUND).entity(
                        RestAPIConstants.RESOURCE_NOT_FOUND + resourcePath).build();

            }
            registry.copy(resourcePath, destinationPath);
            return Response.status(Response.Status.NO_CONTENT).build();

        } catch (RegistryException e) {
            log.error("Failed to copy resource from : " + resourcePath + " to : " + destinationPath);
            return Response.status(Response.Status.INTERNAL_SERVER_ERROR).entity(e.getMessage()).build();
        }

    }
}