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Bug 58332: Adjust implementation of dev-util 'MemoryUsage' to print out information if limits are reached instead of OOM 

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1704182 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Dominik Stadler 2015-09-20 20:05:36 +00:00
parent c736f12f0e
commit f2cd7ed8f5
1 changed files with 30 additions and 10 deletions
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40
src/ooxml/testcases/org/apache/poi/xssf/util/MemoryUsage.java
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@ -37,6 +37,10 @@ import java.util.ArrayList;
*/
public class MemoryUsage extends TestCase {
private static final int NUM_COLUMNS = 255;
private static void printMemoryUsage(String msg) {
System.out.println(" Memory (" + msg + "): " + Runtime.getRuntime().totalMemory()/(1024*1024) + "MB");
}
/**
* Generate a spreadsheet until OutOfMemoryError
@ -50,7 +54,7 @@ public class MemoryUsage extends TestCase {
public static void mixedSpreadsheet(Workbook wb, int numCols){
System.out.println("Testing " + wb.getClass().getName());
System.out.println("Memory: " + Runtime.getRuntime().totalMemory()/(1024*1024) + "MB");
printMemoryUsage("before");
int i=0, cnt=0;
try {
Sheet sh = wb.createSheet();
@ -65,8 +69,11 @@ public class MemoryUsage extends TestCase {
}
} catch (OutOfMemoryError er){
System.out.println("Failed at row=" + i + ", objects : " + cnt);
} catch (final Exception e) {
System.out.println("Unable to reach an OutOfMemoryError");
System.out.println(e.getClass().getName() + ": " + e.getMessage());
}
System.out.println("Memory: " + Runtime.getRuntime().totalMemory()/(1024*1024) + "MB");
printMemoryUsage("after");
}
/**
@ -74,7 +81,7 @@ public class MemoryUsage extends TestCase {
* The data is generated until OutOfMemoryError.
* <p>
* as compared to {@link #mixedSpreadsheet(org.apache.poi.ss.usermodel.Workbook, int)},
* this method does not set string values and, hence, does not invole the Shared Strings Table.
* this method does not set string values and, hence, does not involve the Shared Strings Table.
* </p>
*
* @param wb the workbook to write to
@ -83,7 +90,7 @@ public class MemoryUsage extends TestCase {
public static void numberSpreadsheet(Workbook wb, int numCols){
System.out.println("Testing " + wb.getClass().getName());
System.out.println("Memory: " + Runtime.getRuntime().totalMemory()/(1024*1024) + "MB");
printMemoryUsage("before");
int i=0, cnt=0;
try {
Sheet sh = wb.createSheet();
@ -97,8 +104,11 @@ public class MemoryUsage extends TestCase {
}
} catch (OutOfMemoryError er){
System.out.println("Failed at row=" + i + ", objects : " + cnt);
} catch (final Exception e) {
System.out.println("Unable to reach an OutOfMemoryError");
System.out.println(e.getClass().getName() + ": " + e.getMessage());
}
System.out.println("Memory: " + Runtime.getRuntime().totalMemory()/(1024*1024) + "MB");
printMemoryUsage("after");
}
/**
@ -111,7 +121,7 @@ public class MemoryUsage extends TestCase {
*/
public static void xmlBeans(int numCols) {
int i = 0, cnt = 0;
System.out.println("Memory: " + Runtime.getRuntime().totalMemory() / (1024 * 1024) + "MB");
printMemoryUsage("before");
CTWorksheet sh = CTWorksheet.Factory.newInstance();
CTSheetData data = sh.addNewSheetData();
@ -128,8 +138,11 @@ public class MemoryUsage extends TestCase {
}
} catch (OutOfMemoryError er) {
System.out.println("Failed at row=" + i + ", objects: " + cnt);
} catch (final Exception e) {
System.out.println("Unable to reach an OutOfMemoryError");
System.out.println(e.getClass().getName() + ": " + e.getMessage());
}
System.out.println("Memory: " + Runtime.getRuntime().totalMemory() / (1024 * 1024) + "MB");
printMemoryUsage("after");
}
/**
@ -149,17 +162,21 @@ public class MemoryUsage extends TestCase {
}
} catch (OutOfMemoryError er) {
System.out.println("Failed at row=" + i);
} catch (final Exception e) {
System.out.println("Unable to reach an OutOfMemoryError");
System.out.println(e.getClass().getName() + ": " + e.getMessage());
}
System.out.println("Memory: " + Runtime.getRuntime().totalMemory() / (1024 * 1024) + "MB");
printMemoryUsage("after");
}
/**
* Generate atatched (having a parent bean) Xml beans until OutOfMemoryError.
* Generate attached (having a parent bean) Xml beans until OutOfMemoryError.
* This is MUCH more memory-efficient than {@link #testXmlDetached()}
*
* @see #testXmlAttached()
*/
public void testXmlAttached(){
printMemoryUsage("before");
List<CTRow> rows = new ArrayList<CTRow>();
int i = 0;
//top-level element in sheet.xml
@ -174,8 +191,11 @@ public class MemoryUsage extends TestCase {
}
} catch (OutOfMemoryError er) {
System.out.println("Failed at row=" + i);
} catch (final Exception e) {
System.out.println("Unable to reach an OutOfMemoryError");
System.out.println(e.getClass().getName() + ": " + e.getMessage());
}
System.out.println("Memory: " + Runtime.getRuntime().totalMemory() / (1024 * 1024) + "MB");
printMemoryUsage("after");
}
public void testMixedHSSF(){