io.ballerina.messaging.broker.client.cmd.impl.delete.DeleteQueueCmd Maven / Gradle / Ivy

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/*
 * Copyright (c) 2018, WSO2 Inc. (http://www.wso2.org) All Rights Reserved.
 *
 * WSO2 Inc. licenses this file to you 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 io.ballerina.messaging.broker.client.cmd.impl.delete;

import com.beust.jcommander.Parameter;
import com.beust.jcommander.Parameters;
import io.ballerina.messaging.broker.client.http.HttpClient;
import io.ballerina.messaging.broker.client.http.HttpRequest;
import io.ballerina.messaging.broker.client.http.HttpResponse;
import io.ballerina.messaging.broker.client.output.ResponseFormatter;
import io.ballerina.messaging.broker.client.resources.Configuration;
import io.ballerina.messaging.broker.client.resources.Message;
import io.ballerina.messaging.broker.client.utils.Constants;
import io.ballerina.messaging.broker.client.utils.Utils;

import java.net.HttpURLConnection;

import static io.ballerina.messaging.broker.client.utils.Constants.BROKER_ERROR_MSG;
import static io.ballerina.messaging.broker.client.utils.Constants.HTTP_DELETE;

/**
 * Command representing MB queue deletion.
 */
@Parameters(commandDescription = "Delete a queue in the Broker")
public class DeleteQueueCmd extends DeleteCmd {

    @Parameter(description = "name of the queue",
               required = true)
    private String queueName;

    @Parameter(names = { "--force-used", "-u" },
               description = "force delete already in use queue")
    private boolean forceUsed = false;

    @Parameter(names = { "--force-non-empty", "-e" },
               description = "force delete non empty queue")
    private boolean forceNonEmpty = false;

    public DeleteQueueCmd(String rootCommand) {
        super(rootCommand);
    }

    @Override
    public void execute() {
        if (help) {
            processHelpLogs();
            return;
        }

        Configuration configuration = Utils.getConfiguration(password);
        HttpClient httpClient = new HttpClient(configuration);
        HttpRequest httpRequest = new HttpRequest(Constants.QUEUES_URL_PARAM + queueName);

        httpRequest.setQueryParameters("?ifUnused=" + String.valueOf(!forceUsed)
                                               + "&ifEmpty=" + String.valueOf(!forceNonEmpty));

        // do DELETE
        HttpResponse response = httpClient.sendHttpRequest(httpRequest, HTTP_DELETE);

        // handle response
        if (response.getStatusCode() == HttpURLConnection.HTTP_OK) {
            Message message = buildResponseMessage(response, "Queue deleted successfully");
            ResponseFormatter.printMessage(message);
        } else {
            ResponseFormatter.handleErrorResponse(buildResponseMessage(response, BROKER_ERROR_MSG));
        }

    }

    @Override
    public void appendUsage(StringBuilder out) {
        out.append("Usage:\n");
        out.append("  " + rootCommand + " delete queue [queue-name] [flag]*\n");
    }
}