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Change priority, host, timestamp accessors to functions.
Scalar functions priority(), priority_level(), host(), and event_timestamp() now provide access to the properties of the current event, eliminating the #priority, #host, and #timestamp fields which shadowed potential user-defined attributes. ScalarFunc API changed to have access to the entire current EventWrapper in addition to its ordinary argument array. Improved string representation of timestamps in OutputElement.
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50 changes: 50 additions & 0 deletions
50
src/main/java/com/odiago/flumebase/exec/builtins/event_timestamp.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,50 @@ | ||
| /** | ||
| * Licensed to Odiago, Inc. under one or more contributor license | ||
| * agreements. See the NOTICE.txt file distributed with this work for | ||
| * additional information regarding copyright ownership. Odiago, Inc. | ||
| * 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. | ||
| */ | ||
|
|
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| package com.odiago.flumebase.exec.builtins; | ||
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| import java.util.Collections; | ||
| import java.util.List; | ||
|
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| import com.cloudera.flume.core.Event; | ||
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| import com.odiago.flumebase.exec.EventWrapper; | ||
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| import com.odiago.flumebase.lang.ScalarFunc; | ||
| import com.odiago.flumebase.lang.Timestamp; | ||
| import com.odiago.flumebase.lang.Type; | ||
|
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| /** | ||
| * Return the timestamp field of the current event as a TIMESTAMP. | ||
| */ | ||
| public class event_timestamp extends ScalarFunc { | ||
| @Override | ||
| public Type getReturnType() { | ||
| return Type.getPrimitive(Type.TypeName.TIMESTAMP); | ||
| } | ||
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| @Override | ||
| public Object eval(EventWrapper event, Object... args) { | ||
| Event e = event.getEvent(); | ||
| return new Timestamp(e.getTimestamp(), e.getNanos()); | ||
| } | ||
|
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| @Override | ||
| public List<Type> getArgumentTypes() { | ||
| return Collections.emptyList(); | ||
| } | ||
| } |
49 changes: 49 additions & 0 deletions
49
src/main/java/com/odiago/flumebase/exec/builtins/host.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,49 @@ | ||
| /** | ||
| * Licensed to Odiago, Inc. under one or more contributor license | ||
| * agreements. See the NOTICE.txt file distributed with this work for | ||
| * additional information regarding copyright ownership. Odiago, Inc. | ||
| * 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. | ||
| */ | ||
|
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| package com.odiago.flumebase.exec.builtins; | ||
|
|
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| import java.util.Collections; | ||
| import java.util.List; | ||
|
|
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| import com.cloudera.flume.core.Event; | ||
|
|
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| import com.odiago.flumebase.exec.EventWrapper; | ||
|
|
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| import com.odiago.flumebase.lang.ScalarFunc; | ||
| import com.odiago.flumebase.lang.Type; | ||
|
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| /** | ||
| * Return the host field of the current event as a STRING. | ||
| */ | ||
| public class host extends ScalarFunc { | ||
| @Override | ||
| public Type getReturnType() { | ||
| return Type.getPrimitive(Type.TypeName.STRING); | ||
| } | ||
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| @Override | ||
| public Object eval(EventWrapper event, Object... args) { | ||
| Event e = event.getEvent(); | ||
| return e.getHost(); | ||
| } | ||
|
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| @Override | ||
| public List<Type> getArgumentTypes() { | ||
| return Collections.emptyList(); | ||
| } | ||
| } |
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49 changes: 49 additions & 0 deletions
49
src/main/java/com/odiago/flumebase/exec/builtins/priority.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,49 @@ | ||
| /** | ||
| * Licensed to Odiago, Inc. under one or more contributor license | ||
| * agreements. See the NOTICE.txt file distributed with this work for | ||
| * additional information regarding copyright ownership. Odiago, Inc. | ||
| * 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. | ||
| */ | ||
|
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| package com.odiago.flumebase.exec.builtins; | ||
|
|
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| import java.util.Collections; | ||
| import java.util.List; | ||
|
|
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| import com.cloudera.flume.core.Event; | ||
|
|
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| import com.odiago.flumebase.exec.EventWrapper; | ||
|
|
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| import com.odiago.flumebase.lang.ScalarFunc; | ||
| import com.odiago.flumebase.lang.Type; | ||
|
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| /** | ||
| * Return the priority field of the current event as a STRING. | ||
| */ | ||
| public class priority extends ScalarFunc { | ||
| @Override | ||
| public Type getReturnType() { | ||
| return Type.getPrimitive(Type.TypeName.STRING); | ||
| } | ||
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| @Override | ||
| public Object eval(EventWrapper event, Object... args) { | ||
| Event e = event.getEvent(); | ||
| return e.getPriority().toString(); | ||
| } | ||
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| @Override | ||
| public List<Type> getArgumentTypes() { | ||
| return Collections.emptyList(); | ||
| } | ||
| } |
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