Doesn't it all compiled down to the same thing? It gets optimized at
runtime anyway. I would go for the more readable option, unless there are
extremely compelling performance numbers.

On Sun, Jun 12, 2016 at 4:38 PM Benedikt Ritter <brit...@apache.org> wrote:

> Yes, the if-else could also be implemented using a switch statement. But is
> that really more efficient?
>
> Benedikt
>
> Gary Gregory <garydgreg...@gmail.com> schrieb am So., 12. Juni 2016 um
> 22:05:
>
> > This looks like a candidate for the more efficient switch on string.
> >
> > Gary
> >
> > On Sun, Jun 12, 2016 at 7:47 AM, <brit...@apache.org> wrote:
> >
> > > Author: britter
> > > Date: Sun Jun 12 14:47:11 2016
> > > New Revision: 1748015
> > >
> > > URL: http://svn.apache.org/viewvc?rev=1748015&view=rev
> > > Log:
> > > IMAGING-178: PnmImageParser does not check the validity of input PAM
> > > header. Thanks to emopers. This also fixes #20 from github.
> > >
> > > Modified:
> > >     commons/proper/imaging/trunk/src/changes/changes.xml
> > >
> > >
> >
> commons/proper/imaging/trunk/src/main/java/org/apache/commons/imaging/formats/pnm/PnmImageParser.java
> > >
> > >
> >
> commons/proper/imaging/trunk/src/test/java/org/apache/commons/imaging/formats/pnm/PnmImageParserTest.java
> > >
> > > Modified: commons/proper/imaging/trunk/src/changes/changes.xml
> > > URL:
> > >
> >
> http://svn.apache.org/viewvc/commons/proper/imaging/trunk/src/changes/changes.xml?rev=1748015&r1=1748014&r2=1748015&view=diff
> > >
> > >
> >
> ==============================================================================
> > > --- commons/proper/imaging/trunk/src/changes/changes.xml (original)
> > > +++ commons/proper/imaging/trunk/src/changes/changes.xml Sun Jun 12
> > > 14:47:11 2016
> > > @@ -46,6 +46,9 @@ The <action> type attribute can be add,u
> > >    <body>
> > >
> > >      <release version="1.0" date="TBA" description="First major
> release">
> > > +      <action issue="IMAGING-178" dev="britter" type="fix"
> > > due-to="emopers">
> > > +        PnmImageParser does not check the validity of input PAM
> header.
> > > +      </action>
> > >        <action issue="IMAGING-184" dev="ggregory" type="update">
> > >          Update platform from Java 5 to 7
> > >        </action>
> > >
> > > Modified:
> > >
> >
> commons/proper/imaging/trunk/src/main/java/org/apache/commons/imaging/formats/pnm/PnmImageParser.java
> > > URL:
> > >
> >
> http://svn.apache.org/viewvc/commons/proper/imaging/trunk/src/main/java/org/apache/commons/imaging/formats/pnm/PnmImageParser.java?rev=1748015&r1=1748014&r2=1748015&view=diff
> > >
> > >
> >
> ==============================================================================
> > > ---
> > >
> >
> commons/proper/imaging/trunk/src/main/java/org/apache/commons/imaging/formats/pnm/PnmImageParser.java
> > > (original)
> > > +++
> > >
> >
> commons/proper/imaging/trunk/src/main/java/org/apache/commons/imaging/formats/pnm/PnmImageParser.java
> > > Sun Jun 12 14:47:11 2016
> > > @@ -157,18 +157,28 @@ public class PnmImageParser extends Imag
> > >                  final String type = tokenizer.nextToken();
> > >                  if ("WIDTH".equals(type)) {
> > >                      seenWidth = true;
> > > +                    if(!tokenizer.hasMoreTokens())
> > > +                        throw new ImageReadException("PAM header has
> no
> > > WIDTH value");
> > >                      width = Integer.parseInt(tokenizer.nextToken());
> > >                  } else if ("HEIGHT".equals(type)) {
> > >                      seenHeight = true;
> > > +                    if(!tokenizer.hasMoreTokens())
> > > +                        throw new ImageReadException("PAM header has
> no
> > > HEIGHT value");
> > >                      height = Integer.parseInt(tokenizer.nextToken());
> > >                  } else if ("DEPTH".equals(type)) {
> > >                      seenDepth = true;
> > > +                    if(!tokenizer.hasMoreTokens())
> > > +                        throw new ImageReadException("PAM header has
> no
> > > DEPTH value");
> > >                      depth = Integer.parseInt(tokenizer.nextToken());
> > >                  } else if ("MAXVAL".equals(type)) {
> > >                      seenMaxVal = true;
> > > +                    if(!tokenizer.hasMoreTokens())
> > > +                        throw new ImageReadException("PAM header has
> no
> > > MAXVAL value");
> > >                      maxVal = Integer.parseInt(tokenizer.nextToken());
> > >                  } else if ("TUPLTYPE".equals(type)) {
> > >                      seenTupleType = true;
> > > +                    if(!tokenizer.hasMoreTokens())
> > > +                        throw new ImageReadException("PAM header has
> no
> > > TUPLTYPE value");
> > >                      tupleType.append(tokenizer.nextToken());
> > >                  } else if ("ENDHDR".equals(type)) {
> > >                      break;
> > >
> > > Modified:
> > >
> >
> commons/proper/imaging/trunk/src/test/java/org/apache/commons/imaging/formats/pnm/PnmImageParserTest.java
> > > URL:
> > >
> >
> http://svn.apache.org/viewvc/commons/proper/imaging/trunk/src/test/java/org/apache/commons/imaging/formats/pnm/PnmImageParserTest.java?rev=1748015&r1=1748014&r2=1748015&view=diff
> > >
> > >
> >
> ==============================================================================
> > > ---
> > >
> >
> commons/proper/imaging/trunk/src/test/java/org/apache/commons/imaging/formats/pnm/PnmImageParserTest.java
> > > (original)
> > > +++
> > >
> >
> commons/proper/imaging/trunk/src/test/java/org/apache/commons/imaging/formats/pnm/PnmImageParserTest.java
> > > Sun Jun 12 14:47:11 2016
> > > @@ -46,4 +46,12 @@ public class PnmImageParserTest {
> > >      PnmImageParser underTest = new PnmImageParser();
> > >      underTest.getImageInfo(bytes, params);
> > >    }
> > > +
> > > +  @Test(expected = ImageReadException.class)
> > > +  public void testGetImageInfo_missingWidthValue() throws
> > > ImageReadException, IOException {
> > > +    byte[] bytes = "P7\nWIDTH \n".getBytes(US_ASCII);
> > > +    Map<String, Object> params = Collections.emptyMap();
> > > +    PnmImageParser underTest = new PnmImageParser();
> > > +    underTest.getImageInfo(bytes, params);
> > > +  }
> > >  }
> > >
> > >
> > >
> >
> >
> > --
> > E-Mail: garydgreg...@gmail.com | ggreg...@apache.org
> > Java Persistence with Hibernate, Second Edition
> > <http://www.manning.com/bauer3/>
> > JUnit in Action, Second Edition <http://www.manning.com/tahchiev/>
> > Spring Batch in Action <http://www.manning.com/templier/>
> > Blog: http://garygregory.wordpress.com
> > Home: http://garygregory.com/
> > Tweet! http://twitter.com/GaryGregory
> >
>

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