Examples with BindyKeyValuePairFactory org.apache.camel.dataformat.bindy.BindyKeyValuePairFactory used on opensource projects

Example 1 with BindyKeyValuePairFactory

use of org.apache.camel.dataformat.bindy.BindyKeyValuePairFactory in project camel by apache.

the class BindyKeyValuePairDataFormat method unmarshal.

public Object unmarshal(Exchange exchange, InputStream inputStream) throws Exception {
    BindyKeyValuePairFactory factory = (BindyKeyValuePairFactory) getFactory();
    // List of Pojos
    List<Map<String, Object>> models = new ArrayList<Map<String, Object>>();
    // Pojos of the model
    Map<String, Object> model;
    // Map to hold the model @OneToMany classes while binding
    Map<String, List<Object>> lists = new HashMap<String, List<Object>>();
    InputStreamReader in = new InputStreamReader(inputStream, IOHelper.getCharsetName(exchange));
    // Scanner is used to read big file
    Scanner scanner = new Scanner(in);
    // Retrieve the pair separator defined to split the record
    ObjectHelper.notNull(factory.getPairSeparator(), "The pair separator property of the annotation @Message");
    String separator = factory.getPairSeparator();
    int count = 0;
    try {
        while (scanner.hasNextLine()) {
            // Read the line
            String line = scanner.nextLine().trim();
            if (ObjectHelper.isEmpty(line)) {
                // skip if line is empty
                continue;
            }
            // Increment counter
            count++;
            // Create POJO
            model = factory.factory();
            // Split the message according to the pair separator defined in
            // annotated class @Message
            List<String> result = Arrays.asList(line.split(separator));
            if (result.size() == 0 || result.isEmpty()) {
                throw new java.lang.IllegalArgumentException("No records have been defined in the KVP");
            }
            if (result.size() > 0) {
                // Bind data from message with model classes
                // Counter is used to detect line where error occurs
                factory.bind(result, model, count, lists);
                // Link objects together
                factory.link(model);
                // Add objects graph to the list
                models.add(model);
                LOG.debug("Graph of objects created: {}", model);
            }
        }
        // If this is the case (correspond to an empty stream, ...)
        if (models.size() == 0) {
            throw new java.lang.IllegalArgumentException("No records have been defined in the CSV");
        } else {
            return extractUnmarshalResult(models);
        }
    } finally {
        scanner.close();
        IOHelper.close(in, "in", LOG);
    }
}

Example 2 with BindyKeyValuePairFactory

use of org.apache.camel.dataformat.bindy.BindyKeyValuePairFactory in project camel by apache.

the class BindyKeyValuePairDataFormat method createModelFactory.

protected BindyAbstractFactory createModelFactory(FormatFactory formatFactory) throws Exception {
    BindyKeyValuePairFactory bindyKeyValuePairFactory = new BindyKeyValuePairFactory(getClassType());
    bindyKeyValuePairFactory.setFormatFactory(formatFactory);
    return bindyKeyValuePairFactory;
}