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0002574: Improve performance of the transfer to and from staging
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86 changes: 86 additions & 0 deletions
86
...etric-io/src/main/java/org/jumpmind/symmetric/io/data/reader/SimpleStagingDataReader.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,86 @@ | ||
| /** | ||
| * Licensed to JumpMind Inc under one or more contributor | ||
| * license agreements. See the NOTICE file distributed | ||
| * with this work for additional information regarding | ||
| * copyright ownership. JumpMind Inc licenses this file | ||
| * to you under the GNU General Public License, version 3.0 (GPLv3) | ||
| * (the "License"); you may not use this file except in compliance | ||
| * with the License. | ||
| * | ||
| * You should have received a copy of the GNU General Public License, | ||
| * version 3.0 (GPLv3) along with this library; if not, see | ||
| * <http://www.gnu.org/licenses/>. | ||
| * | ||
| * 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.jumpmind.symmetric.io.data.reader; | ||
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| import java.io.BufferedReader; | ||
| import java.io.BufferedWriter; | ||
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| import org.apache.commons.io.IOUtils; | ||
| import org.jumpmind.exception.IoException; | ||
| import org.jumpmind.symmetric.io.data.Batch.BatchType; | ||
| import org.jumpmind.symmetric.io.data.DataContext; | ||
| import org.jumpmind.symmetric.io.stage.IStagedResource; | ||
| import org.slf4j.Logger; | ||
| import org.slf4j.LoggerFactory; | ||
|
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| public class SimpleStagingDataReader { | ||
| final static int MAX_WRITE_LENGTH = 32768; | ||
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| protected final Logger log = LoggerFactory.getLogger(getClass()); | ||
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| protected BatchType batchType; | ||
| protected long batchId; | ||
| protected String targetNodeId; | ||
| protected IStagedResource stagedResource; | ||
| protected BufferedWriter writer; | ||
| protected BufferedReader reader; | ||
| protected DataContext context; | ||
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| public SimpleStagingDataReader(BatchType batchType, long batchId, String targetNodeId, IStagedResource stagedResource, | ||
| BufferedWriter writer, DataContext context) { | ||
| this.batchType = batchType; | ||
| this.targetNodeId = targetNodeId; | ||
| this.stagedResource = stagedResource; | ||
| this.writer = writer; | ||
| this.context = context; | ||
| } | ||
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| public void process() { | ||
| reader = stagedResource.getReader(); | ||
| char[] buffer = new char[MAX_WRITE_LENGTH]; | ||
| long totalCharsRead = 0; | ||
| int numCharsRead = 0; | ||
| long startTime = System.currentTimeMillis(), ts = startTime; | ||
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| try { | ||
| while ((numCharsRead = reader.read(buffer)) != -1) { | ||
| writer.write(buffer, 0, numCharsRead); | ||
| totalCharsRead += numCharsRead; | ||
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| if (Thread.currentThread().isInterrupted()) { | ||
| throw new IoException("This thread was interrupted"); | ||
| } | ||
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| if (System.currentTimeMillis() - ts > 60000) { | ||
| log.info("Batch '{}', for node '{}', for process 'send from stage' has been processing for {} seconds. The following stats have been gathered: {}", | ||
| new Object[] { batchId, targetNodeId, (System.currentTimeMillis() - startTime) / 1000, | ||
| "BYTES=" + totalCharsRead }); | ||
| ts = System.currentTimeMillis(); | ||
| } | ||
| } | ||
| } catch (Throwable t) { | ||
| throw new RuntimeException(t); | ||
| } finally { | ||
| IOUtils.closeQuietly(reader); | ||
| } | ||
| } | ||
|
|
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| } |
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