Does EncodedMessageComparator.equivalent() ignore the time stamp in the
message header?
http://hl7api.sourceforge.net/base/apidocs/ca/uhn/hl7v2/util/EncodedMessageComparator.html#equivalent(java.lang.String,
java.lang.String)
Derek
On Wed, Aug 8, 2012 at 3:31 PM, christian ohr <christian....@icw.de> wrote:
>
> ... or there's ca.uhn.hl7v2.util.EncodedMessageComparator, which provides a
> couple of methods that help standardizing and comparing messages.
>
> cheers
> Christian
>
>
>
> rahul somasunderam-2 wrote:
> >
> > I wrote up a method using LightHL7Lib:
> >
> > public void assertMessagesEqual(Hl7Record expected, Hl7Record actual) {
> > List<String> headers = expected.listSegments();
> > headers.addAll(actual.listSegments());
> > assertEquals(expected.listSegments(), actual.listSegments());
> > Set<String> segments = new TreeSet<String>(headers);
> >
> > for (String segmentName : segments) {
> > if (segmentName.contains("|")) {
> > break;
> > }
> > int i = 0;
> > while (true) {
> > i++;
> > Hl7Segment expectedSeg = expected.getSegment(segmentName, i);
> > Hl7Segment actualSeg = actual.getSegment(segmentName, i);
> >
> > if (expectedSeg == null && actualSeg == null) {
> > break;
> > }
> > if (expectedSeg == null || actualSeg == null) {
> > assertEquals("Comparing " + segmentName + "[" + i +
> > "].",expectedSeg, actualSeg);
> > }
> >
> > assertNotNull("Comparing " + segmentName + "[" + i + "].",
> > actualSeg);
> >
> > int j ;
> > if (segmentName.equals("MSH")) {
> > j = 2;
> > } else {
> > j = 1;
> > }
> >
> > int maxFields = expectedSeg.fieldAll().length;
> > if (maxFields < actualSeg.fieldAll().length) {
> > maxFields = actualSeg.fieldAll().length;
> > }
> > for ( /*Use j as is*/; j <= maxFields ; j++) {
> > if (expectedSeg.field(j) == null /*||
> > expectedSeg.field(j).toString().length() == 0*/) {
> > continue;
> > }
> >
> > /* Check if field exists */
> > assertNotNull("Comparing " + segmentName + "[" + i + "]." + j,
> > actualSeg.field(j));
> >
> > if (expectedSeg.field(j).getCompCount() > 1) {
> > /* Check components */
> > for (int k = 0; k < expectedSeg.field(j).getCompCount(); k++)
> > {
> > if (expectedSeg.field(j)
> > .getComp(k + 1) == null /*||
> > expectedSeg.field(j).getComp(k+1).toString().length() == 0*/) {
> > continue;
> > }
> > assertNotNull("Comparing " + segmentName + "[" + i + "]." +
> > j + "." + k,
> > actualSeg.field(j).getComp(k + 1));
> > if (expectedSeg.field(j).getComp(k + 1).getSubcompCount() >
> > 1) {
> > /* Check subcomponents */
> > for (int l = 0; l < expectedSeg.field(j).getComp(k +
> > 1).getSubcompCount(); l++) {
> > if (expectedSeg.field(j).getComp(k + 1).getSubcomp(l +
> > 1) == null
> > /*||
> > expectedSeg.field(j).getComp(k+1).getSubcomp(l+1).toString().length() ==
> > 0*/) {
> > continue;
> > }
> > assertNotNull("Comparing " + segmentName + "[" + i +
> > "]." + j + "." + k + "." + l,
> > actualSeg.field(j).getComp(k + 1).getSubcomp(l +
> > 1));
> > assertEquals("Comparing " + segmentName + "[" + i +
> "]."
> > + j + "." + k + "." + l,
> > expectedSeg.field(j).getComp(k + 1).getSubcomp(l +
> > 1).toString(),
> > actualSeg.field(j).getComp(k + 1).getSubcomp(l +
> > 1).toString());
> >
> > }
> > } else {
> > assertEquals("Comparing " + segmentName + "[" + i + "]."
> +
> > j + "." + (k + 1),
> > expectedSeg.field(j).getComp(k +
> 1).toString().trim(),
> > actualSeg.field(j).getComp(k + 1).toString().trim());
> > }
> > }
> > } else {
> > assertEquals("Comparing " + segmentName + "[" + i + "]." + j,
> > expectedSeg.field(j).toString().trim(),
> > actualSeg.field(j).toString().trim());
> > }
> > }
> > }
> > }
> > }
> >
> > It gives detailed information on which segment and which field are
> > different. Better than plain diff, but not using HAPI.
> >
> > R,
> > rahul
> >
> > On Aug 8, 2012, at 8:58 AM, Derek Mahar wrote:
> >
> >> Is comparing the string representation of a HAPI message the only way to
> >> compare messages? We noticed that HAPI messages don't redefine method
> >> equals(), so comparisons using JUnit assertions or Mockito verify()
> calls
> >> must use Object.equals() which compares object identity, not contents.
> >> Are there any plans to implement methods equals() and hashCode() in
> >> messages and segments?
>
--
Derek Mahar
Senior Software Developer
Intelerad Medical Systems Incorporated
895 de la Gauchetiere W. Suite 400
Montreal, QC, Canada, H3B 4G1
Tel: 514.931.6222 x7754
Fax: 514.931.4653
derek.ma...@intelerad.com
www.intelerad.com
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