Java Code Examples for ca.uhn.hl7v2.HapiContext#setValidationContext()

The following examples show how to use ca.uhn.hl7v2.HapiContext#setValidationContext() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source File: TestHL7Query.java    From localization_nifi with Apache License 2.0 5 votes vote down vote up 
private HL7Message createMessage(final File file) throws HL7Exception, IOException {
    final byte[] bytes = Files.readAllBytes(file.toPath());
    final String msgText = new String(bytes, "UTF-8");

    final HapiContext hapiContext = new DefaultHapiContext();
    hapiContext.setValidationContext(ValidationContextFactory.noValidation());

    final PipeParser parser = hapiContext.getPipeParser();
    final Message message = parser.parse(msgText);
    return new HapiMessage(message);
}
Example 2
Source File: TestHL7Query.java    From nifi with Apache License 2.0 5 votes vote down vote up 
private HL7Message createMessage(final String msgText) throws HL7Exception, IOException {
    final HapiContext hapiContext = new DefaultHapiContext();
    hapiContext.setValidationContext(ValidationContextFactory.noValidation());

    final PipeParser parser = hapiContext.getPipeParser();
    final Message message = parser.parse(msgText);
    return new HapiMessage(message);
}
Example 3
Source File: RouteHL7.java    From localization_nifi with Apache License 2.0 4 votes vote down vote up 
@Override
public void onTrigger(final ProcessContext context, final ProcessSession session) throws ProcessException {
    FlowFile flowFile = session.get();
    if (flowFile == null) {
        return;
    }

    final Charset charset = Charset.forName(context.getProperty(CHARACTER_SET).evaluateAttributeExpressions(flowFile).getValue());

    final byte[] buffer = new byte[(int) flowFile.getSize()];
    session.read(flowFile, new InputStreamCallback() {
        @Override
        public void process(final InputStream in) throws IOException {
            StreamUtils.fillBuffer(in, buffer);
        }
    });

    @SuppressWarnings("resource")
    final HapiContext hapiContext = new DefaultHapiContext();
    hapiContext.setValidationContext((ca.uhn.hl7v2.validation.ValidationContext) ValidationContextFactory.noValidation());

    final PipeParser parser = hapiContext.getPipeParser();
    final String hl7Text = new String(buffer, charset);
    final HL7Message message;
    try {
        final Message hapiMessage = parser.parse(hl7Text);
        message = new HapiMessage(hapiMessage);
    } catch (final Exception e) {
        getLogger().error("Failed to parse {} as HL7 due to {}; routing to failure", new Object[]{flowFile, e});
        session.transfer(flowFile, REL_FAILURE);
        return;
    }

    final Set<String> matchingRels = new HashSet<>();
    final Map<Relationship, HL7Query> queryMap = queries;
    for (final Map.Entry<Relationship, HL7Query> entry : queryMap.entrySet()) {
        final Relationship relationship = entry.getKey();
        final HL7Query query = entry.getValue();

        final QueryResult result = query.evaluate(message);
        if (result.isMatch()) {
            FlowFile clone = session.clone(flowFile);
            clone = session.putAttribute(clone, "RouteHL7.Route", relationship.getName());
            session.transfer(clone, relationship);
            session.getProvenanceReporter().route(clone, relationship);
            matchingRels.add(relationship.getName());
        }
    }

    session.transfer(flowFile, REL_ORIGINAL);
    getLogger().info("Routed a copy of {} to {} relationships: {}", new Object[]{flowFile, matchingRels.size(), matchingRels});
}
Example 4
Source File: ExtractHL7Attributes.java    From localization_nifi with Apache License 2.0 4 votes vote down vote up 
@Override
public void onTrigger(final ProcessContext context, final ProcessSession session) throws ProcessException {
    FlowFile flowFile = session.get();
    if (flowFile == null) {
        return;
    }

    final Charset charset = Charset.forName(context.getProperty(CHARACTER_SET).evaluateAttributeExpressions(flowFile).getValue());
    final Boolean useSegmentNames = context.getProperty(USE_SEGMENT_NAMES).asBoolean();
    final Boolean parseSegmentFields = context.getProperty(PARSE_SEGMENT_FIELDS).asBoolean();
    final Boolean skipValidation = context.getProperty(SKIP_VALIDATION).asBoolean();
    final String inputVersion = context.getProperty(HL7_INPUT_VERSION).getValue();

    final byte[] buffer = new byte[(int) flowFile.getSize()];
    session.read(flowFile, new InputStreamCallback() {
        @Override
        public void process(final InputStream in) throws IOException {
            StreamUtils.fillBuffer(in, buffer);
        }
    });

    @SuppressWarnings("resource")
    final HapiContext hapiContext = new DefaultHapiContext();
    if (!inputVersion.equals("autodetect")) {
        hapiContext.setModelClassFactory(new CanonicalModelClassFactory(inputVersion));
    }
    if (skipValidation) {
        hapiContext.setValidationContext((ValidationContext) ValidationContextFactory.noValidation());
    }

    final PipeParser parser = hapiContext.getPipeParser();
    final String hl7Text = new String(buffer, charset);
    try {
        final Message message = parser.parse(hl7Text);
        final Map<String, String> attributes = getAttributes(message, useSegmentNames, parseSegmentFields);
        flowFile = session.putAllAttributes(flowFile, attributes);
        getLogger().debug("Added the following attributes for {}: {}", new Object[]{flowFile, attributes});
    } catch (final HL7Exception e) {
        getLogger().error("Failed to extract attributes from {} due to {}", new Object[]{flowFile, e});
        session.transfer(flowFile, REL_FAILURE);
        return;
    }

    session.transfer(flowFile, REL_SUCCESS);
}
Example 5
Source File: RouteHL7.java    From nifi with Apache License 2.0 4 votes vote down vote up 
@Override
public void onTrigger(final ProcessContext context, final ProcessSession session) throws ProcessException {
    FlowFile flowFile = session.get();
    if (flowFile == null) {
        return;
    }

    final Charset charset = Charset.forName(context.getProperty(CHARACTER_SET).evaluateAttributeExpressions(flowFile).getValue());

    final byte[] buffer = new byte[(int) flowFile.getSize()];
    session.read(flowFile, new InputStreamCallback() {
        @Override
        public void process(final InputStream in) throws IOException {
            StreamUtils.fillBuffer(in, buffer);
        }
    });

    @SuppressWarnings("resource")
    final HapiContext hapiContext = new DefaultHapiContext();
    hapiContext.setValidationContext((ca.uhn.hl7v2.validation.ValidationContext) ValidationContextFactory.noValidation());

    final PipeParser parser = hapiContext.getPipeParser();
    final String hl7Text = new String(buffer, charset);
    final HL7Message message;
    try {
        final Message hapiMessage = parser.parse(hl7Text);
        message = new HapiMessage(hapiMessage);
    } catch (final Exception e) {
        getLogger().error("Failed to parse {} as HL7 due to {}; routing to failure", new Object[]{flowFile, e});
        session.transfer(flowFile, REL_FAILURE);
        return;
    }

    final Set<String> matchingRels = new HashSet<>();
    final Map<Relationship, HL7Query> queryMap = queries;
    for (final Map.Entry<Relationship, HL7Query> entry : queryMap.entrySet()) {
        final Relationship relationship = entry.getKey();
        final HL7Query query = entry.getValue();

        final QueryResult result = query.evaluate(message);
        if (result.isMatch()) {
            FlowFile clone = session.clone(flowFile);
            clone = session.putAttribute(clone, "RouteHL7.Route", relationship.getName());
            session.transfer(clone, relationship);
            session.getProvenanceReporter().route(clone, relationship);
            matchingRels.add(relationship.getName());
        }
    }

    session.transfer(flowFile, REL_ORIGINAL);
    getLogger().info("Routed a copy of {} to {} relationships: {}", new Object[]{flowFile, matchingRels.size(), matchingRels});
}
Example 6
Source File: ExtractHL7Attributes.java    From nifi with Apache License 2.0 4 votes vote down vote up 
@Override
public void onTrigger(final ProcessContext context, final ProcessSession session) throws ProcessException {
    FlowFile flowFile = session.get();
    if (flowFile == null) {
        return;
    }

    final Charset charset = Charset.forName(context.getProperty(CHARACTER_SET).evaluateAttributeExpressions(flowFile).getValue());
    final Boolean useSegmentNames = context.getProperty(USE_SEGMENT_NAMES).asBoolean();
    final Boolean parseSegmentFields = context.getProperty(PARSE_SEGMENT_FIELDS).asBoolean();
    final Boolean skipValidation = context.getProperty(SKIP_VALIDATION).asBoolean();
    final String inputVersion = context.getProperty(HL7_INPUT_VERSION).getValue();

    final byte[] buffer = new byte[(int) flowFile.getSize()];
    session.read(flowFile, new InputStreamCallback() {
        @Override
        public void process(final InputStream in) throws IOException {
            StreamUtils.fillBuffer(in, buffer);
        }
    });

    @SuppressWarnings("resource")
    final HapiContext hapiContext = new DefaultHapiContext();
    if (!inputVersion.equals("autodetect")) {
        hapiContext.setModelClassFactory(new CanonicalModelClassFactory(inputVersion));
    }
    if (skipValidation) {
        hapiContext.setValidationContext((ValidationContext) ValidationContextFactory.noValidation());
    }

    final PipeParser parser = hapiContext.getPipeParser();
    final String hl7Text = new String(buffer, charset);
    try {
        final Message message = parser.parse(hl7Text);
        final Map<String, String> attributes = getAttributes(message, useSegmentNames, parseSegmentFields);
        flowFile = session.putAllAttributes(flowFile, attributes);
        getLogger().debug("Added the following attributes for {}: {}", new Object[]{flowFile, attributes});
    } catch (final HL7Exception e) {
        getLogger().error("Failed to extract attributes from {} due to {}", new Object[]{flowFile, e});
        session.transfer(flowFile, REL_FAILURE);
        return;
    }

    session.transfer(flowFile, REL_SUCCESS);
}