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Diffstat (limited to 'framework/src/onos/apps/dhcp/api/src/main/java/org/onosproject/dhcp/IpAssignment.java')
| -rw-r--r-- | framework/src/onos/apps/dhcp/api/src/main/java/org/onosproject/dhcp/IpAssignment.java | 215 |
1 files changed, 215 insertions, 0 deletions
diff --git a/framework/src/onos/apps/dhcp/api/src/main/java/org/onosproject/dhcp/IpAssignment.java b/framework/src/onos/apps/dhcp/api/src/main/java/org/onosproject/dhcp/IpAssignment.java new file mode 100644 index 00000000..9b3aa686 --- /dev/null +++ b/framework/src/onos/apps/dhcp/api/src/main/java/org/onosproject/dhcp/IpAssignment.java @@ -0,0 +1,215 @@ +/* + * Copyright 2014 Open Networking Laboratory + * + * 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.onosproject.dhcp; + +import com.google.common.base.MoreObjects; +import org.onlab.packet.Ip4Address; + +import java.util.Date; + +import static com.google.common.base.Preconditions.checkNotNull; + +/** + * Stores the MAC ID to IP Address mapping details. + */ +public final class IpAssignment { + + private final Ip4Address ipAddress; + + private final Date timestamp; + + private final long leasePeriod; + + private final AssignmentStatus assignmentStatus; + + public enum AssignmentStatus { + /** + * IP has been requested by a host, but not assigned to it yet. + */ + Option_Requested, + + /** + * IP has been assigned to a host. + */ + Option_Assigned, + + /** + * IP mapping is no longer active. + */ + Option_Expired + } + + /** + * Constructor for IPAssignment, where the ipAddress, the lease period, the timestamp + * and assignment status is supplied. + * + * @param ipAddress + * @param leasePeriod + * @param assignmentStatus + */ + private IpAssignment(Ip4Address ipAddress, + long leasePeriod, + Date timestamp, + AssignmentStatus assignmentStatus) { + this.ipAddress = ipAddress; + this.leasePeriod = leasePeriod; + this.timestamp = timestamp; + this.assignmentStatus = assignmentStatus; + } + + /** + * Returns the IP Address of the IP assignment. + * + * @return the IP address + */ + public Ip4Address ipAddress() { + return this.ipAddress; + } + + /** + * Returns the timestamp of the IP assignment. + * + * @return the timestamp + */ + public Date timestamp() { + return this.timestamp; + } + + /** + * Returns the assignment status of the IP assignment. + * + * @return the assignment status + */ + public AssignmentStatus assignmentStatus() { + return this.assignmentStatus; + } + + /** + * Returns the lease period of the IP assignment. + * + * @return the lease period in seconds + */ + public int leasePeriod() { + return (int) this.leasePeriod; + } + + /** + * Returns the lease period of the IP assignment. + * + * @return the lease period in milliseconds + */ + public int leasePeriodMs() { + return (int) this.leasePeriod * 1000; + } + + @Override + public String toString() { + return MoreObjects.toStringHelper(getClass()) + .add("ip", ipAddress) + .add("timestamp", timestamp) + .add("lease", leasePeriod) + .add("assignmentStatus", assignmentStatus) + .toString(); + } + + /** + * Creates and returns a new builder instance. + * + * @return new builder + */ + public static Builder builder() { + return new Builder(); + } + + /** + * Creates and returns a new builder instance that clones an existing IPAssignment. + * + * @param assignment ip address assignment + * @return new builder + */ + public static Builder builder(IpAssignment assignment) { + return new Builder(assignment); + } + + /** + * IPAssignment Builder. + */ + public static final class Builder { + + private Ip4Address ipAddress; + + private Date timeStamp; + + private long leasePeriod; + + private AssignmentStatus assignmentStatus; + + private Builder() { + + } + + private Builder(IpAssignment ipAssignment) { + ipAddress = ipAssignment.ipAddress(); + timeStamp = ipAssignment.timestamp(); + leasePeriod = ipAssignment.leasePeriod(); + assignmentStatus = ipAssignment.assignmentStatus(); + } + + public IpAssignment build() { + validateInputs(); + return new IpAssignment(ipAddress, + leasePeriod, + timeStamp, + assignmentStatus); + } + + public Builder ipAddress(Ip4Address addr) { + ipAddress = addr; + return this; + } + + public Builder timestamp(Date timestamp) { + timeStamp = timestamp; + return this; + } + + public Builder leasePeriod(int leasePeriodinSeconds) { + leasePeriod = leasePeriodinSeconds; + return this; + } + + public Builder assignmentStatus(AssignmentStatus status) { + assignmentStatus = status; + return this; + } + + private void validateInputs() { + checkNotNull(ipAddress, "IP Address must be specified"); + checkNotNull(assignmentStatus, "Assignment Status must be specified"); + checkNotNull(leasePeriod, "Lease Period must be specified"); + checkNotNull(timeStamp, "Timestamp must be specified"); + + switch (assignmentStatus) { + case Option_Requested: + case Option_Assigned: + case Option_Expired: + break; + default: + throw new IllegalStateException("Unknown assignment status"); + } + } + } +} |