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/*
* Copyright 2015 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.pcepio.types;
import java.util.LinkedList;
import java.util.ListIterator;
import org.jboss.netty.buffer.ChannelBuffer;
import org.onosproject.pcepio.exceptions.PcepParseException;
import org.onosproject.pcepio.protocol.PcepErrorObject;
import org.onosproject.pcepio.protocol.PcepOpenObject;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.google.common.base.MoreObjects;
/**
* Provide the error object list with open object.
*/
public class ErrorObjListWithOpen {
//errorObjList is mandatory
private LinkedList<PcepErrorObject> llerrorObjList;
// openObject is optional
private PcepOpenObject openObject;
// flag to check if open object is set or not
private boolean isOpenObjectSet;
protected static final Logger log = LoggerFactory.getLogger(ErrorObjListWithOpen.class);
/**
* Constructor to initialize Error and OPEN object.
*
* @param errObj ERROR object list
* @param openObj OPEN object
*/
public ErrorObjListWithOpen(LinkedList<PcepErrorObject> errObj, PcepOpenObject openObj) {
this.llerrorObjList = errObj;
this.openObject = openObj;
if (openObj != null) {
isOpenObjectSet = true;
} else {
isOpenObjectSet = false;
}
}
/**
* Constructor to initialize ERROR Object.
*
* @param errObj ERROR Object list
*/
public ErrorObjListWithOpen(LinkedList<PcepErrorObject> errObj) {
this.llerrorObjList = errObj;
this.openObject = null;
isOpenObjectSet = false;
}
/**
* Return list of Error Types.
*
* @return error types list
*/
public LinkedList<Integer> getErrorType() {
LinkedList<Integer> errorType = new LinkedList<>();
if (llerrorObjList != null) {
ListIterator<PcepErrorObject> errObjListIterator = llerrorObjList.listIterator();
int error;
PcepErrorObject errorObj;
while (errObjListIterator.hasNext()) {
errorObj = errObjListIterator.next();
error = errorObj.getErrorType();
errorType.add(error);
}
}
return errorType;
}
/**
* Return list of Error Values.
*
* @return error values list
*/
public LinkedList<Integer> getErrorValue() {
LinkedList<Integer> errorValue = new LinkedList<>();
if (llerrorObjList != null) {
ListIterator<PcepErrorObject> errObjListIterator = llerrorObjList.listIterator();
int error;
PcepErrorObject errorObj;
while (errObjListIterator.hasNext()) {
errorObj = errObjListIterator.next();
error = errorObj.getErrorValue();
errorValue.add(error);
}
}
return errorValue;
}
/**
* Checks whether ERROR Object list is empty or not.
*
* @return true if ERROR Object list is empty otherwise false
*/
public boolean isErrorObjListWithOpenPresent() {
// ( <error-obj-list> [<Open>]
// At least in this case <error-obj-list> should be present.
return !this.llerrorObjList.isEmpty();
}
/**
* Write Error Object List and Open Object to channel buffer.
*
* @param cb output channel buffer
* @return length of written Error object list with open
* @throws PcepParseException when mandatory fields are not set
*/
public int write(ChannelBuffer cb) throws PcepParseException {
int iLenStartIndex = cb.writerIndex();
boolean bIsErrObjListFound = false;
//<error-obj-list> is mandatory , if not present throw exception.
if (llerrorObjList != null) {
ListIterator<PcepErrorObject> errObjListIterator = llerrorObjList.listIterator();
while (errObjListIterator.hasNext()) {
errObjListIterator.next().write(cb);
bIsErrObjListFound = true;
}
}
if (!bIsErrObjListFound) {
throw new PcepParseException("<error-obj-list> is mandatory.");
}
//Open Object is optional , if present write.
if (openObject != null) {
openObject.write(cb);
}
return cb.writerIndex() - iLenStartIndex;
}
@Override
public String toString() {
return MoreObjects.toStringHelper(getClass())
.omitNullValues()
.add("ErrorObjList", llerrorObjList)
.add("Open", openObject)
.toString();
}
}
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