Examples of org.apache.jmeter.protocol.http.control.DNSCacheManager

Package org.apache.jmeter.protocol.http.control

Examples of org.apache.jmeter.protocol.http.control.DNSCacheManager

org.apache.jmeter.protocol.http.control.DNSCacheManager
This config element provides ability to have flexible control over DNS caching function. Depending on option from @see {@link org.apache.jmeter.protocol.http.gui.DNSCachePanel}, either system or custom resolver can be used. Custom resolver uses dnsjava library, and gives ability to bypass both OS and JVM cache. It allows to use paradigm "1 virtual user - 1 DNS cache" in performance tests. @since 2.12

    public void modifyTestElement(TestElement dnsRes) {
        GuiUtils.stopTableEditing(dnsServersTable);
        dnsRes.clear();
        configureTestElement(dnsRes);
        if (dnsRes instanceof DNSCacheManager) {
            DNSCacheManager dnsCacheManager = (DNSCacheManager) dnsRes;
            for (int i = 0; i < dnsServersTableModel.getRowCount(); i++) {
                String server = (String) dnsServersTableModel.getRowData(i)[0];
                dnsCacheManager.addServer(server);
            }
            dnsCacheManager.setClearEachIteration(clearEachIteration.isSelected());
            if (providerDNSradioGroup.isSelected(custResButton.getModel())) {
                dnsCacheManager.setCustomResolver(true);
            } else {
                dnsCacheManager.setCustomResolver(false);
            }
        }
    }

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        }
    }


    @Override
    public TestElement createTestElement() {
        DNSCacheManager dnsCacheManager = new DNSCacheManager();
        modifyTestElement(dnsCacheManager);
        return dnsCacheManager;
    }

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    @Override
    public void configure(TestElement el) {
        super.configure(el);


        DNSCacheManager dnsCacheManager = (DNSCacheManager) el;
        populateTable(dnsCacheManager);
        clearEachIteration.setSelected(dnsCacheManager.isClearEachIteration());
        if (dnsCacheManager.isCustomResolver()) {
            providerDNSradioGroup.setSelected(custResButton.getModel(), true);
            deleteButton.setEnabled(dnsServersTable.getColumnCount() > 0);
            addButton.setEnabled(true);
        } else {
            providerDNSradioGroup.setSelected(sysResButton.getModel(), true);

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    public DNSCacheManager getDNSResolver() {
        return (DNSCacheManager) getProperty(DNS_CACHE_MANAGER).getObjectValue();
    }


    public void setDNSResolver(DNSCacheManager cacheManager) {
        DNSCacheManager mgr = getDNSResolver();
        if (mgr != null) {
            log.warn("Existing DNSCacheManager " + mgr.getName() + " superseded by " + cacheManager.getName());
        }
        setProperty(new TestElementProperty(DNS_CACHE_MANAGER, cacheManager));
    }

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Related Classes of org.apache.jmeter.protocol.http.control.DNSCacheManager

org.apache.http.impl.conn.SystemDefaultDnsResolver

org.apache.jmeter.protocol.http.gui.DNSCachePanel

org.apache.jmeter.protocol.http.sampler.HTTPSamplerBase

org.apache.jmeter.testelement.property.BooleanProperty

org.apache.jmeter.testelement.property.CollectionProperty

org.apache.jmeter.testelement.property.PropertyIterator

org.xbill.DNS.Cache

org.xbill.DNS.ExtendedResolver

org.xbill.DNS.Lookup

org.xbill.DNS.SimpleResolver

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