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Merge pull request #205 from hawkular/task-queue
Initial task scheduling support
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,55 @@ | ||
| <?xml version="1.0" encoding="UTF-8"?> | ||
| <!-- | ||
| Copyright 2014-2015 Red Hat, Inc. and/or its affiliates | ||
| and other contributors as indicated by the @author tags. | ||
| 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. | ||
| --> | ||
| <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" | ||
| xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd"> | ||
| <modelVersion>4.0.0</modelVersion> | ||
|
|
||
| <parent> | ||
| <groupId>org.hawkular.metrics</groupId> | ||
| <artifactId>hawkular-metrics-parent</artifactId> | ||
| <version>0.3.4-SNAPSHOT</version> | ||
| <relativePath>../pom.xml</relativePath> | ||
| </parent> | ||
|
|
||
| <artifactId>schema-manager</artifactId> | ||
|
|
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| <name>Schema Manager</name> | ||
| <description>Schema manager for Cassandra</description> | ||
|
|
||
| <dependencies> | ||
| <dependency> | ||
| <groupId>com.datastax.cassandra</groupId> | ||
| <artifactId>cassandra-driver-core</artifactId> | ||
| <version>${datastax.driver.version}</version> | ||
| </dependency> | ||
|
|
||
| <dependency> | ||
| <groupId>org.slf4j</groupId> | ||
| <artifactId>slf4j-log4j12</artifactId> | ||
| <version>${slf4j.version}</version> | ||
| </dependency> | ||
|
|
||
| <dependency> | ||
| <groupId>log4j</groupId> | ||
| <artifactId>log4j</artifactId> | ||
| <version>${log4j.version}</version> | ||
| </dependency> | ||
| </dependencies> | ||
| </project> |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,89 @@ | ||
| <?xml version="1.0" encoding="UTF-8"?> | ||
| <!-- | ||
| Copyright 2014-2015 Red Hat, Inc. and/or its affiliates | ||
| and other contributors as indicated by the @author tags. | ||
| Licensed under the Apache License, Version 2.0 (the "License"); | ||
| you may not use this file except in compliance with the License. | ||
| You may obtain a copy of the License at | ||
| http://www.apache.org/licenses/LICENSE-2.0 | ||
| Unless required by applicable law or agreed to in writing, software | ||
| distributed under the License is distributed on an "AS IS" BASIS, | ||
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| See the License for the specific language governing permissions and | ||
| limitations under the License. | ||
| --> | ||
| <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" | ||
| xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd"> | ||
| <modelVersion>4.0.0</modelVersion> | ||
|
|
||
| <parent> | ||
| <groupId>org.hawkular.metrics</groupId> | ||
| <artifactId>hawkular-metrics-parent</artifactId> | ||
| <version>0.3.4-SNAPSHOT</version> | ||
| <relativePath>../pom.xml</relativePath> | ||
| </parent> | ||
|
|
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| <artifactId>hawkular-metrics-task-queue</artifactId> | ||
| <name>Hawkular Metrics Task Queue</name> | ||
|
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| <properties> | ||
| <test.keyspace>hawkulartest</test.keyspace> | ||
| </properties> | ||
|
|
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| <dependencies> | ||
| <dependency> | ||
| <groupId>${project.groupId}</groupId> | ||
| <artifactId>schema-manager</artifactId> | ||
| <version>${project.version}</version> | ||
| </dependency> | ||
|
|
||
| <dependency> | ||
| <groupId>com.datastax.cassandra</groupId> | ||
| <artifactId>cassandra-driver-core</artifactId> | ||
| <version>${datastax.driver.version}</version> | ||
| </dependency> | ||
|
|
||
| <dependency> | ||
| <groupId>org.slf4j</groupId> | ||
| <artifactId>slf4j-log4j12</artifactId> | ||
| <version>${slf4j.version}</version> | ||
| </dependency> | ||
|
|
||
| <dependency> | ||
| <groupId>log4j</groupId> | ||
| <artifactId>log4j</artifactId> | ||
| <version>${log4j.version}</version> | ||
| </dependency> | ||
|
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||
| <dependency> | ||
| <groupId>joda-time</groupId> | ||
| <artifactId>joda-time</artifactId> | ||
| <version>${joda.time.version}</version> | ||
| </dependency> | ||
|
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| <dependency> | ||
| <groupId>org.testng</groupId> | ||
| <artifactId>testng</artifactId> | ||
| <scope>test</scope> | ||
| </dependency> | ||
| </dependencies> | ||
|
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||
| <build> | ||
| <plugins> | ||
| <plugin> | ||
| <groupId>org.apache.maven.plugins</groupId> | ||
| <artifactId>maven-surefire-plugin</artifactId> | ||
| <configuration> | ||
| <systemPropertyVariables> | ||
| <keyspace>${test.keyspace}</keyspace> | ||
| </systemPropertyVariables> | ||
| </configuration> | ||
| </plugin> | ||
| </plugins> | ||
| </build> | ||
| </project> |
88 changes: 88 additions & 0 deletions
88
task-queue/src/main/java/org/hawkular/metrics/tasks/DateTimeService.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,88 @@ | ||
| /* | ||
| * Copyright 2014-2015 Red Hat, Inc. and/or its affiliates | ||
| * and other contributors as indicated by the @author tags. | ||
| * | ||
| * 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.hawkular.metrics.tasks; | ||
|
|
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| import static org.joda.time.DateTime.now; | ||
|
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| import org.joda.time.DateTime; | ||
| import org.joda.time.DateTimeZone; | ||
| import org.joda.time.Days; | ||
| import org.joda.time.Duration; | ||
| import org.joda.time.Hours; | ||
| import org.joda.time.Period; | ||
|
|
||
| /** | ||
| * @author jsanda | ||
| */ | ||
| public class DateTimeService { | ||
|
|
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| static { | ||
| // Force the timezone to UTC to avoid any problems due to transitions from DST to non-DST | ||
| DateTimeZone.setDefault(DateTimeZone.UTC); | ||
| } | ||
|
|
||
| /** | ||
| * @return A DateTime object rounded down to the start of the current hour. For example, if the current time is | ||
| * 17:21:09, then 17:00:00 is returned. | ||
| */ | ||
| public DateTime currentHour() { | ||
| return getTimeSlice(now(), Hours.ONE.toStandardDuration()); | ||
| } | ||
|
|
||
| /** | ||
| * The 24 hour time slices are fix - 00:00 to 24:00. This method determines the 24 hour time slice based on | ||
| * {@link #currentHour()} and returns the start of the time slice. | ||
| * | ||
| * @return A DateTime object rounded down to the start of the current 24 hour time slice. | ||
| */ | ||
| public DateTime current24HourTimeSlice() { | ||
| return get24HourTimeSlice(currentHour()); | ||
| } | ||
|
|
||
| /** | ||
| * This method determines the 24 hour time slice for the specified time and returns the start of that time slice. | ||
| * | ||
| * @param time The DateTime to be rounded down | ||
| * @return A DateTime rounded down to the start of the 24 hour time slice in which the time parameter falls. | ||
| * @see #current24HourTimeSlice() | ||
| */ | ||
| public DateTime get24HourTimeSlice(DateTime time) { | ||
| return getTimeSlice(time, Days.ONE.toStandardDuration()); | ||
| } | ||
|
|
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| public DateTime getTimeSlice(DateTime dt, Duration duration) { | ||
| Period p = duration.toPeriod(); | ||
|
|
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| if (p.getYears() != 0) { | ||
| return dt.yearOfEra().roundFloorCopy().minusYears(dt.getYearOfEra() % p.getYears()); | ||
| } else if (p.getMonths() != 0) { | ||
| return dt.monthOfYear().roundFloorCopy().minusMonths((dt.getMonthOfYear() - 1) % p.getMonths()); | ||
| } else if (p.getWeeks() != 0) { | ||
| return dt.weekOfWeekyear().roundFloorCopy().minusWeeks((dt.getWeekOfWeekyear() - 1) % p.getWeeks()); | ||
| } else if (p.getDays() != 0) { | ||
| return dt.dayOfMonth().roundFloorCopy().minusDays((dt.getDayOfMonth() - 1) % p.getDays()); | ||
| } else if (p.getHours() != 0) { | ||
| return dt.hourOfDay().roundFloorCopy().minusHours(dt.getHourOfDay() % p.getHours()); | ||
| } else if (p.getMinutes() != 0) { | ||
| return dt.minuteOfHour().roundFloorCopy().minusMinutes(dt.getMinuteOfHour() % p.getMinutes()); | ||
| } else if (p.getSeconds() != 0) { | ||
| return dt.secondOfMinute().roundFloorCopy().minusSeconds(dt.getSecondOfMinute() % p.getSeconds()); | ||
| } | ||
| return dt.millisOfSecond().roundCeilingCopy().minusMillis(dt.getMillisOfSecond() % p.getMillis()); | ||
| } | ||
|
|
||
| } |
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