/**
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF 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 org.apache.activemq.store.kahadb.scheduler;
import java.io.DataInput;
import java.io.DataOutput;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import org.apache.activemq.store.kahadb.disk.journal.Location;
import org.apache.activemq.store.kahadb.disk.util.VariableMarshaller;
class JobLocation {
private String jobId;
private int repeat;
private long startTime;
private long delay;
private long nextTime;
private long period;
private String cronEntry;
private final Location location;
private int rescheduledCount;
private Location lastUpdate;
public JobLocation(Location location) {
this.location = location;
}
public JobLocation() {
this(new Location());
}
public void readExternal(DataInput in) throws IOException {
this.jobId = in.readUTF();
this.repeat = in.readInt();
this.startTime = in.readLong();
this.delay = in.readLong();
this.nextTime = in.readLong();
this.period = in.readLong();
this.cronEntry = in.readUTF();
this.location.readExternal(in);
if (in.readBoolean()) {
this.lastUpdate = new Location();
this.lastUpdate.readExternal(in);
}
}
public void writeExternal(DataOutput out) throws IOException {
out.writeUTF(this.jobId);
out.writeInt(this.repeat);
out.writeLong(this.startTime);
out.writeLong(this.delay);
out.writeLong(this.nextTime);
out.writeLong(this.period);
if (this.cronEntry == null) {
this.cronEntry = "";
}
out.writeUTF(this.cronEntry);
this.location.writeExternal(out);
if (lastUpdate != null) {
out.writeBoolean(true);
this.lastUpdate.writeExternal(out);
} else {
out.writeBoolean(false);
}
}
/**
* @return the jobId
*/
public String getJobId() {
return this.jobId;
}
/**
* @param jobId
* the jobId to set
*/
public void setJobId(String jobId) {
this.jobId = jobId;
}
/**
* @return the repeat
*/
public int getRepeat() {
return this.repeat;
}
/**
* @param repeat
* the repeat to set
*/
public void setRepeat(int repeat) {
this.repeat = repeat;
}
/**
* @return the start
*/
public long getStartTime() {
return this.startTime;
}
/**
* @param start
* the start to set
*/
public void setStartTime(long start) {
this.startTime = start;
}
/**
* @return the nextTime
*/
public synchronized long getNextTime() {
return this.nextTime;
}
/**
* @param nextTime
* the nextTime to set
*/
public synchronized void setNextTime(long nextTime) {
this.nextTime = nextTime;
}
/**
* @return the period
*/
public long getPeriod() {
return this.period;
}
/**
* @param period
* the period to set
*/
public void setPeriod(long period) {
this.period = period;
}
/**
* @return the cronEntry
*/
public synchronized String getCronEntry() {
return this.cronEntry;
}
/**
* @param cronEntry
* the cronEntry to set
*/
public synchronized void setCronEntry(String cronEntry) {
this.cronEntry = cronEntry;
}
/**
* @return if this JobLocation represents a cron entry.
*/
public boolean isCron() {
return getCronEntry() != null && getCronEntry().length() > 0;
}
/**
* @return the delay
*/
public long getDelay() {
return this.delay;
}
/**
* @param delay
* the delay to set
*/
public void setDelay(long delay) {
this.delay = delay;
}
/**
* @return the location
*/
public Location getLocation() {
return this.location;
}
/**
* @returns the location in the journal of the last update issued for this
* Job.
*/
public Location getLastUpdate() {
return this.lastUpdate;
}
/**
* Sets the location of the last update command written to the journal for
* this Job. The update commands set the next execution time for this job.
* We need to keep track of only the latest update as it's the only one we
* really need to recover the correct state from the journal.
*
* @param location
* The location in the journal of the last update command.
*/
public void setLastUpdate(Location location) {
this.lastUpdate = location;
}
/**
* @return the number of time this job has been rescheduled.
*/
public int getRescheduledCount() {
return rescheduledCount;
}
/**
* Sets the number of time this job has been rescheduled. A newly added job will return
* zero and increment this value each time a scheduled message is dispatched to its
* target destination and the job is rescheduled for another cycle.
*
* @param executionCount
* the new execution count to assign the JobLocation.
*/
public void setRescheduledCount(int rescheduledCount) {
this.rescheduledCount = rescheduledCount;
}
@Override
public String toString() {
return "Job [id=" + jobId + ", startTime=" + new Date(startTime) + ", delay=" + delay + ", period=" + period + ", repeat=" + repeat + ", nextTime="
+ new Date(nextTime) + ", executionCount = " + (rescheduledCount + 1) + "]";
}
static class JobLocationMarshaller extends VariableMarshaller<List<JobLocation>> {
static final JobLocationMarshaller INSTANCE = new JobLocationMarshaller();
@Override
public List<JobLocation> readPayload(DataInput dataIn) throws IOException {
List<JobLocation> result = new ArrayList<JobLocation>();
int size = dataIn.readInt();
for (int i = 0; i < size; i++) {
JobLocation jobLocation = new JobLocation();
jobLocation.readExternal(dataIn);
result.add(jobLocation);
}
return result;
}
@Override
public void writePayload(List<JobLocation> value, DataOutput dataOut) throws IOException {
dataOut.writeInt(value.size());
for (JobLocation jobLocation : value) {
jobLocation.writeExternal(dataOut);
}
}
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + ((cronEntry == null) ? 0 : cronEntry.hashCode());
result = prime * result + (int) (delay ^ (delay >>> 32));
result = prime * result + ((jobId == null) ? 0 : jobId.hashCode());
result = prime * result + ((location == null) ? 0 : location.hashCode());
result = prime * result + (int) (nextTime ^ (nextTime >>> 32));
result = prime * result + (int) (period ^ (period >>> 32));
result = prime * result + repeat;
result = prime * result + (int) (startTime ^ (startTime >>> 32));
result = prime * result + (rescheduledCount ^ (rescheduledCount >>> 32));
return result;
}
@Override
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if (obj == null) {
return false;
}
if (getClass() != obj.getClass()) {
return false;
}
JobLocation other = (JobLocation) obj;
if (cronEntry == null) {
if (other.cronEntry != null) {
return false;
}
} else if (!cronEntry.equals(other.cronEntry)) {
return false;
}
if (delay != other.delay) {
return false;
}
if (jobId == null) {
if (other.jobId != null)
return false;
} else if (!jobId.equals(other.jobId)) {
return false;
}
if (location == null) {
if (other.location != null) {
return false;
}
} else if (!location.equals(other.location)) {
return false;
}
if (nextTime != other.nextTime) {
return false;
}
if (period != other.period) {
return false;
}
if (repeat != other.repeat) {
return false;
}
if (startTime != other.startTime) {
return false;
}
if (rescheduledCount != other.rescheduledCount) {
return false;
}
return true;
}
}