Example usage for javax.management.openmbean TabularData isEmpty

Introduction

In this page you can find the example usage for javax.management.openmbean TabularData isEmpty.

Prototype

public boolean isEmpty();

Source Link

Document

Returns true if the number of CompositeData values (ie the number of rows) contained in this TabularData instance is zero.

Usage

From source file:org.jolokia.converter.json.TabularDataExtractor.java

private Object convertMxBeanMapToJson(TabularData pTd, Stack<String> pExtraArgs,
        ObjectToJsonConverter pConverter) throws AttributeNotFoundException {
    JSONObject ret = new JSONObject();
    for (Object rowObject : pTd.values()) {
        CompositeData row = (CompositeData) rowObject;
        Stack<String> path = (Stack<String>) pExtraArgs.clone();
        Object keyObject = row.get("key");
        if (keyObject != null) {
            try {
                Object value = pConverter.extractObject(row.get("value"), path, true);
                ret.put(keyObject.toString(), value);
            } catch (ValueFaultHandler.AttributeFilteredException exp) {
                // Skip to next object since attribute was filtered
            }/*from w  w  w .j ava 2 s .  c o m*/
        }
    }
    if (!pTd.isEmpty() && ret.isEmpty()) {
        // Bubble up if not a single thingy has been found
        throw new ValueFaultHandler.AttributeFilteredException();
    }
    return ret;
}

---

From source file:org.jolokia.converter.json.TabularDataExtractor.java

private Object convertToMaps(TabularData pTd, Stack<String> pExtraArgs, ObjectToJsonConverter pConverter)
        throws AttributeNotFoundException {
    JSONObject ret = new JSONObject();
    TabularType type = pTd.getTabularType();
    List<String> indexNames = type.getIndexNames();

    boolean found = false;
    for (CompositeData cd : (Collection<CompositeData>) pTd.values()) {
        Stack<String> path = (Stack<String>) pExtraArgs.clone();
        try {//from ww  w.j a va  2  s. co m
            JSONObject targetJSONObject = ret;
            // TODO: Check whether all keys can be represented as simple types. If not, well
            // we dont do any magic and return the tabular data as an array.
            for (int i = 0; i < indexNames.size() - 1; i++) {
                Object indexValue = pConverter.extractObject(cd.get(indexNames.get(i)), null, true);
                targetJSONObject = getNextMap(targetJSONObject, indexValue);
            }
            Object row = pConverter.extractObject(cd, path, true);
            String finalIndex = indexNames.get(indexNames.size() - 1);
            Object finalIndexValue = pConverter.extractObject(cd.get(finalIndex), null, true);
            targetJSONObject.put(finalIndexValue, row);
            found = true;
        } catch (ValueFaultHandler.AttributeFilteredException exp) {
            // Ignoring filtered attributes
        }
    }
    if (!pTd.isEmpty() && !found) {
        throw new ValueFaultHandler.AttributeFilteredException();
    }
    return ret;
}

---