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// 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
//
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// software distributed under the License is distributed on an
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// specific language governing permissions and limitations
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package org.apache.cloudstack.api.command.admin.vlan;

import com.cloud.utils.net.NetUtils;
import org.apache.log4j.Logger;

import org.apache.cloudstack.api.APICommand;
import org.apache.cloudstack.api.ApiConstants;
import org.apache.cloudstack.api.ApiErrorCode;
import org.apache.cloudstack.api.BaseCmd;
import org.apache.cloudstack.api.Parameter;
import org.apache.cloudstack.api.ServerApiException;
import org.apache.cloudstack.api.response.DomainResponse;
import org.apache.cloudstack.api.response.NetworkResponse;
import org.apache.cloudstack.api.response.PhysicalNetworkResponse;
import org.apache.cloudstack.api.response.PodResponse;
import org.apache.cloudstack.api.response.ProjectResponse;
import org.apache.cloudstack.api.response.VlanIpRangeResponse;
import org.apache.cloudstack.api.response.ZoneResponse;

import com.cloud.dc.Vlan;
import com.cloud.exception.ConcurrentOperationException;
import com.cloud.exception.InsufficientCapacityException;
import com.cloud.exception.ResourceAllocationException;
import com.cloud.exception.ResourceUnavailableException;
import com.cloud.user.Account;

@APICommand(name = "createVlanIpRange", description = "Creates a VLAN IP range.", responseObject = VlanIpRangeResponse.class,
        requestHasSensitiveInfo = false, responseHasSensitiveInfo = false)
public class CreateVlanIpRangeCmd extends BaseCmd {
    public static final Logger s_logger = Logger.getLogger(CreateVlanIpRangeCmd.class.getName());


    /////////////////////////////////////////////////////
    //////////////// API parameters /////////////////////
    /////////////////////////////////////////////////////

    @Parameter(name = ApiConstants.ACCOUNT,
               type = CommandType.STRING,
               description = "account who will own the VLAN. If VLAN is Zone wide, this parameter should be omitted")
    private String accountName;

    @Parameter(name = ApiConstants.PROJECT_ID,
               type = CommandType.UUID,
               entityType = ProjectResponse.class,
               description = "project who will own the VLAN. If VLAN is Zone wide, this parameter should be omitted")
    private Long projectId;

    @Parameter(name = ApiConstants.DOMAIN_ID, type = CommandType.UUID, entityType = DomainResponse.class, description = "domain ID of the account owning a VLAN")
    private Long domainId;

    @Parameter(name = ApiConstants.END_IP, type = CommandType.STRING, description = "the ending IP address in the VLAN IP range")
    private String endIp;

    @Parameter(name = ApiConstants.FOR_VIRTUAL_NETWORK, type = CommandType.BOOLEAN, description = "true if VLAN is of Virtual type, false if Direct")
    private Boolean forVirtualNetwork;

    @Parameter(name = ApiConstants.GATEWAY, type = CommandType.STRING, description = "the gateway of the VLAN IP range")
    private String gateway;

    @Parameter(name = ApiConstants.NETMASK, type = CommandType.STRING, description = "the netmask of the VLAN IP range")
    private String netmask;

    @Parameter(name = ApiConstants.POD_ID,
               type = CommandType.UUID,
               entityType = PodResponse.class,
               description = "optional parameter. Have to be specified for Direct Untagged vlan only.")
    private Long podId;

    @Parameter(name = ApiConstants.START_IP, type = CommandType.STRING, description = "the beginning IP address in the VLAN IP range")
    private String startIp;

    @Parameter(name = ApiConstants.VLAN, type = CommandType.STRING, description = "the ID or VID of the VLAN. If not specified,"
        + " will be defaulted to the vlan of the network or if vlan of the network is null - to Untagged")
    private String vlan;

    @Parameter(name = ApiConstants.ZONE_ID, type = CommandType.UUID, entityType = ZoneResponse.class, description = "the Zone ID of the VLAN IP range")
    private Long zoneId;

    @Parameter(name = ApiConstants.NETWORK_ID, type = CommandType.UUID, entityType = NetworkResponse.class, description = "the network id")
    private Long networkID;

    @Parameter(name = ApiConstants.PHYSICAL_NETWORK_ID, type = CommandType.UUID, entityType = PhysicalNetworkResponse.class, description = "the physical network id")
    private Long physicalNetworkId;

    @Parameter(name = ApiConstants.START_IPV6, type = CommandType.STRING, description = "the beginning IPv6 address in the IPv6 network range")
    private String startIpv6;

    @Parameter(name = ApiConstants.END_IPV6, type = CommandType.STRING, description = "the ending IPv6 address in the IPv6 network range")
    private String endIpv6;

    @Parameter(name = ApiConstants.IP6_GATEWAY, type = CommandType.STRING, description = "the gateway of the IPv6 network. Required "
        + "for Shared networks and Isolated networks when it belongs to VPC")
    private String ip6Gateway;

    @Parameter(name = ApiConstants.IP6_CIDR, type = CommandType.STRING, description = "the CIDR of IPv6 network, must be at least /64")
    private String ip6Cidr;

    @Parameter(name = ApiConstants.FOR_SYSTEM_VMS, type = CommandType.BOOLEAN, description = "true if IP range is set to system vms, false if not")
    private Boolean forSystemVms;

    /////////////////////////////////////////////////////
    /////////////////// Accessors ///////////////////////
    /////////////////////////////////////////////////////

    public String getAccountName() {
        return accountName;
    }

    public Long getDomainId() {
        return domainId;
    }

    public String getEndIp() {
        return endIp;
    }

    public Boolean isForVirtualNetwork() {
        return forVirtualNetwork == null ? Boolean.TRUE : forVirtualNetwork;
    }

    public String getGateway() {
        return gateway;
    }

    public Boolean isForSystemVms() {
        return forSystemVms == null ? Boolean.FALSE : forSystemVms;
    }

    public String getNetmask() {
        return netmask;
    }

    public Long getPodId() {
        return podId;
    }

    public String getStartIp() {
        return startIp;
    }

    public String getVlan() {
        if (vlan == null || vlan.isEmpty()) {
            vlan = "untagged";
        }
        return vlan;
    }

    public Long getZoneId() {
        return zoneId;
    }

    public Long getProjectId() {
        return projectId;
    }

    public String getStartIpv6() {
        if (startIpv6 == null) {
            return null;
        }
        return NetUtils.standardizeIp6Address(startIpv6);
    }

    public String getEndIpv6() {
        if (endIpv6 == null) {
            return null;
        }
        return NetUtils.standardizeIp6Address(endIpv6);
    }

    public String getIp6Gateway() {
        if (ip6Gateway == null) {
            return null;
        }
        return NetUtils.standardizeIp6Address(ip6Gateway);
    }

    public String getIp6Cidr() {
        if (ip6Cidr == null) {
            return null;
        }
        return NetUtils.standardizeIp6Cidr(ip6Cidr);
    }

    /////////////////////////////////////////////////////
    /////////////// API Implementation///////////////////
    /////////////////////////////////////////////////////

    public Long getNetworkID() {
        return networkID;
    }

    public Long getPhysicalNetworkId() {
        return physicalNetworkId;
    }

    @Override
    public long getEntityOwnerId() {
        return Account.ACCOUNT_ID_SYSTEM;
    }

    @Override
    public void execute() throws ResourceUnavailableException, ResourceAllocationException {
        try {
            Vlan result = _configService.createVlanAndPublicIpRange(this);
            if (result != null) {
                VlanIpRangeResponse response = _responseGenerator.createVlanIpRangeResponse(result);
                response.setResponseName(getCommandName());
                this.setResponseObject(response);
            } else {
                throw new ServerApiException(ApiErrorCode.INTERNAL_ERROR, "Failed to create vlan ip range");
            }
        } catch (ConcurrentOperationException ex) {
            s_logger.warn("Exception: ", ex);
            throw new ServerApiException(ApiErrorCode.INTERNAL_ERROR, ex.getMessage());
        } catch (InsufficientCapacityException ex) {
            s_logger.info(ex);
            throw new ServerApiException(ApiErrorCode.INSUFFICIENT_CAPACITY_ERROR, ex.getMessage());
        }
    }
}
