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created separate thread for writer to speed up processing
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118 changes: 118 additions & 0 deletions
118
src/main/java/com/sforce/dataset/loader/WriterThread.java
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| @@ -0,0 +1,118 @@ | ||
| /* | ||
| * Copyright (c) 2014, salesforce.com, inc. | ||
| * All rights reserved. | ||
| * | ||
| * Redistribution and use in source and binary forms, with or without modification, are permitted provided | ||
| * that the following conditions are met: | ||
| * | ||
| * Redistributions of source code must retain the above copyright notice, this list of conditions and the | ||
| * following disclaimer. | ||
| * | ||
| * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and | ||
| * the following disclaimer in the documentation and/or other materials provided with the distribution. | ||
| * | ||
| * Neither the name of salesforce.com, inc. nor the names of its contributors may be used to endorse or | ||
| * promote products derived from this software without specific prior written permission. | ||
| * | ||
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED | ||
| * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A | ||
| * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR | ||
| * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED | ||
| * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | ||
| * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING | ||
| * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | ||
| * POSSIBILITY OF SUCH DAMAGE. | ||
| */ | ||
| package com.sforce.dataset.loader; | ||
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| import java.util.concurrent.BlockingQueue; | ||
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| public class WriterThread implements Runnable { | ||
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| private static final int max_error_threshhold = 10000; | ||
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| private final BlockingQueue<String[]> queue; | ||
| private final EbinFormatWriter w; | ||
| private final ErrorWriter ew; | ||
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| private volatile boolean isDone = false; | ||
| private volatile int errorRowCount = 0; | ||
| private volatile int totalRowCount = 0; | ||
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| WriterThread(BlockingQueue<String[]> q,EbinFormatWriter w,ErrorWriter ew) | ||
| { | ||
| if(q==null || w == null || ew == null) | ||
| { | ||
| throw new IllegalArgumentException("Constrictor input cannot be null"); | ||
| } | ||
| queue = q; | ||
| this.w = w; | ||
| this.ew = ew; | ||
| } | ||
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| public void run() { | ||
| try { | ||
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| System.out.println("Start: " + Thread.currentThread().getName()); | ||
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| String[] row = queue.take(); | ||
| while (row != null && row.length!=0) { | ||
| try | ||
| { | ||
| totalRowCount++; | ||
| w.addrow(row); | ||
| }catch(Throwable t) | ||
| { | ||
| if(errorRowCount==0) | ||
| { | ||
| System.err.println(); | ||
| } | ||
| System.err.println("Row {"+totalRowCount+"} has error {"+t+"}"); | ||
| if(row!=null) | ||
| { | ||
| ew.addError(row, t.getMessage()); | ||
| errorRowCount++; | ||
| if(errorRowCount>=max_error_threshhold) | ||
| { | ||
| System.err.println("Max error threshold reached. Aborting processing"); | ||
| break; | ||
| } | ||
| } | ||
| //t.printStackTrace(); | ||
| } | ||
| row = queue.take(); | ||
| } | ||
| }catch (Throwable t) { | ||
| System.out.println (Thread.currentThread().getName() + " " + t.getMessage()); | ||
| } | ||
| isDone = true; | ||
| System.out.println("END: " + Thread.currentThread().getName()); | ||
| } | ||
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| public boolean isDone() { | ||
| return isDone; | ||
| } | ||
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| public void setDone(boolean isDone) { | ||
| this.isDone = isDone; | ||
| } | ||
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| public int getErrorRowCount() { | ||
| return errorRowCount; | ||
| } | ||
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| public void setErrorRowCount(int errorRowCount) { | ||
| this.errorRowCount = errorRowCount; | ||
| } | ||
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| public int getTotalRowCount() { | ||
| return totalRowCount; | ||
| } | ||
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| public void setTotalRowCount(int totalRowCount) { | ||
| this.totalRowCount = totalRowCount; | ||
| } | ||
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| } |