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/*
* ============LICENSE_START=======================================================
* Actn Interface Tools
* ================================================================================
* Copyright (C) 2023 Huawei Canada Limited.
* ================================================================================
* 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.
* ============LICENSE_END=========================================================
*/
package org.onap.integration.actninterfacetools.sampleapp.mpiconverter.model;
import java.util.Arrays;
import java.util.HashMap;
import java.util.Map;
import static com.google.common.base.Preconditions.checkArgument;
import static com.google.common.base.Preconditions.checkNotNull;
public class PncOtnBandwidthProfile implements Cloneable, BandwidthMgmtService {
public static final boolean CAN_ODU_MULTIPLEXING = true;
public static OduResource EMPTY_ODU_RESOURCE = new OduResource((short)0,(short)0,(short)0,(short)0,(short)0,
(short)0,(short)0, null, null);
private Map<TsLinkKey, int[]> unResvOdu = new HashMap<>();
private Map<TsLinkKey, int[]> localReservedOdu = new HashMap<>();
//private Map<TsLinkKey, Multiset<BwUsageRecord>> localReservedOdu = new HashMap<>();
//Default PncOtnBandwidthProfile constructor
public PncOtnBandwidthProfile(){
}
// Allocate new ODu bandwidth to link tunnel, the allocation will add new entry into localReservedOdu map
// and deduct one odu of specific type from unReserOdu map
// NOTE: always call this function before checking there are feasible odu(s) left.
public boolean allocLocalReserveOdu(TsLinkKey linkkey, OduResource request) {
//Multiset<BwUsageRecord> allocatedBw = localReservedOdu.get(linkkey);
int [] unreservedOdulist = unResvOdu.get(linkkey);
int [] reservedOdu = localReservedOdu.get(linkkey);
if (reservedOdu == null){
reservedOdu = new int[OduResource.ADVANCE_ODU.length];
}
int oduRequestArray[] = request.getOduResourceArray(OduResource.ADVANCE_ODU);
checkArgument(unreservedOdulist.length == oduRequestArray.length, "Target Odu is not available");
//Subtract certain share(s) of this ODU Type
if (unreservedOdulist[0] >= reservedOdu[0] + request.equivalentToNumOfOdu0s()){
reservedOdu[0] += request.equivalentToNumOfOdu0s();
} else {
for(int i=0,e=unreservedOdulist.length;i < e; i++) {
int leftover = unreservedOdulist[i] - (reservedOdu[i] + oduRequestArray[i]);
checkArgument(leftover >= 0, "Odu type is not sufficient for building slice tunnel");
reservedOdu[i] += oduRequestArray[i];
}
}
localReservedOdu.put(linkkey, reservedOdu);
return true;
}
public boolean addUnreservedOdu(TsLinkKey linkkey, OduResource oduResource) {
int oduInventory[] = oduResource.getOduResourceArray(OduResource.ADVANCE_ODU);
unResvOdu.put(linkkey, oduInventory);
return true;
}
public boolean addUnreservedOdu(TsLinkKey linkkey, int[] odulist) {
unResvOdu.put(linkkey, odulist);
return true;
}
public boolean removeUnreservedOdu(TsLinkKey linkkey) {
unResvOdu.remove(linkkey);
return true;
}
public int[] getUnreservedOdu(TsLinkKey linkkey) {
checkNotNull(linkkey);
int [] origin = unResvOdu.get(linkkey);
return origin;
}
public int[] getReservedOdu(TsLinkKey linkkey) {
checkNotNull(linkkey);
int [] origin = localReservedOdu.get(linkkey);
return origin;
}
public OduResource getUnreserveOduResource(TsLinkKey linkkey){
int [] oduArray = getUnreservedOdu(linkkey);
return (oduArray == null)? null: OduResource.getOduResourceFromArray(oduArray);
}
public OduResource getReservedOduResource(TsLinkKey linkkey) {
int [] oduArray = getReservedOdu(linkkey);
return (oduArray == null)? null: OduResource.getOduResourceFromArray(oduArray);
}
public boolean isOduTypeAvailable(TsLink link, OduResource request) {
boolean available = true;
OduResource unreserveOduResource = getUnreserveOduResource(TsLinkKey.tsLinkKey(link));
OduResource reservedOduResource = getReservedOduResource(TsLinkKey.tsLinkKey(link));
//int oduRequestArray[] = request.getOduResourceArray(ODU_TYPE_IN_IETF_TE_TYPE_SIMPLE);
if (null != unreserveOduResource) {
if (null != reservedOduResource &&
unreserveOduResource.equivalentToNumOfOdu0s() < request.equivalentToNumOfOdu0s() + reservedOduResource.equivalentToNumOfOdu0s()){
available = false;
} else if ( null == reservedOduResource &&
unreserveOduResource.equivalentToNumOfOdu0s() < request.equivalentToNumOfOdu0s()){
available = false;
}
if(available == false){
available = true;
for (OduType t : OduResource.ADVANCE_ODU) {
if (null != reservedOduResource &&
unreserveOduResource.getNumberOfOdu(t) < request.getNumberOfOdu(t) + reservedOduResource.getNumberOfOdu(t)){
available = false;
} else if ( null == reservedOduResource &&
unreserveOduResource.getNumberOfOdu(t) < request.getNumberOfOdu(t) ) {
available = false;
}
}
}
} else {
available = false;
}
return available;
}
private int feasibleOduByBandwidth(double[] bandwidthArr, int target) {
int start = 0, end = bandwidthArr.length - 1;
int ans = -1;
while (start <= end) {
int mid = (start + end) / 2;
if (bandwidthArr[mid] < target) {
start = mid + 1;
} else {
ans = mid;
end = mid - 1;
}
}
return ans;
}
private int feasibleOduByOduList(int[] numberODUArr, int idx, boolean multiplexing) {
int oduIdx = -1;
int len = numberODUArr.length;
if (idx >= len) {
return -1;
}
while (idx < len) {
if (numberODUArr[idx] > 0) {
oduIdx = idx;
break;
} else if (!multiplexing) {
break;
} else {
idx++;
}
}
return oduIdx;
}
public Object clone() throws CloneNotSupportedException {
PncOtnBandwidthProfile t = (PncOtnBandwidthProfile) super.clone();
t.unResvOdu = new HashMap<TsLinkKey, int[]>();
t.localReservedOdu = new HashMap<TsLinkKey, int[]> ();
for (Map.Entry<TsLinkKey, int[]> entry : unResvOdu.entrySet()) {
t.unResvOdu.put(entry.getKey(),
Arrays.copyOf(entry.getValue(),
entry.getValue().length));
}
for (Map.Entry<TsLinkKey, int[]> entry : localReservedOdu.entrySet()) {
t.localReservedOdu.put(entry.getKey(),
Arrays.copyOf(entry.getValue(),
entry.getValue().length));
}
//t.localReservedOdu = new HashMap<TsLinkKey, Multiset<BwUsageRecord>>();
return t;
}
}
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