Java Code Examples for org.hyperledger.fabric.sdk.Channel#updateChannelConfiguration()

@Test
public void test02SystemChannel() {

    try {

        ////////////////////////////
        //Reconstruct and run the channels
        //    SampleOrg sampleOrg = testConfig.getIntegrationTestsSampleOrg("peerOrg1");
        Channel channel = reconstructChannel(true, SYSTEM_CHANNEL_NAME, client, sampleOrg);

        assertTrue(channel.getPeers().isEmpty()); // no peers

        client.setUserContext(baduser);

        // Getting foo channels current configuration bytes.
        byte[] channelConfigurationBytes = channel.getChannelConfigurationBytes(ordererAdmin, channel.getOrderers().iterator().next());

        String originalConfigJson = configTxlatorDecode(httpclient, channelConfigurationBytes);

        assertTrue(originalConfigJson.matches(REGX_IS_SYSTEM_CHANNEL));  // verify is system channel

        //responseAsString is JSON but use just string operations for this test.

        if (!originalConfigJson.contains(ORIGINAL_BATCH_TIMEOUT)) {

            fail(format("Did not find expected batch timeout '%s', in:%s", ORIGINAL_BATCH_TIMEOUT, originalConfigJson));
        }

        byte[] reEncodedOriginalConfig = configTxLatorEncode(httpclient, originalConfigJson); // we need to get this to make sure the compare has encoding in the same way!

        //Now modify the batch timeout
        String updateString = originalConfigJson.replace(ORIGINAL_BATCH_TIMEOUT, UPDATED_BATCH_TIMEOUT);

        byte[] updatedConfigBytes = configTxLatorEncode(httpclient, updateString);

        // Now send to configtxlator multipart form post with original config bytes, updated config bytes and channel name.
        byte[] updateBytes = getChannelUpdateBytes(channel, reEncodedOriginalConfig, updatedConfigBytes);

        UpdateChannelConfiguration updateChannelConfiguration = new UpdateChannelConfiguration(updateBytes);

        //To change the channel we need to sign with orderer admin certs which crypto gen stores:

        // client.setUserContext(ordererAdmin);
        //Ok now do actual channel update.
        channel.updateChannelConfiguration(ordererAdmin, updateChannelConfiguration,
                channel.getOrderers().iterator().next(),
                client.getUpdateChannelConfigurationSignature(updateChannelConfiguration, ordererAdmin));

        Thread.sleep(3000); // give time for events to happen

        //Let's add some additional verification...

        // client.setUserContext(sampleOrg.getPeerAdmin());
        client.setUserContext(baduser);

        final byte[] modChannelBytes = channel.getChannelConfigurationBytes(ordererAdmin);

        originalConfigJson = configTxlatorDecode(httpclient, modChannelBytes);

        if (!originalConfigJson.contains(UPDATED_BATCH_TIMEOUT)) {
            //If it doesn't have the updated time out it failed.
            fail(format("Did not find updated expected batch timeout '%s', in:%s", UPDATED_BATCH_TIMEOUT, originalConfigJson));
        }

        if (originalConfigJson.contains(ORIGINAL_BATCH_TIMEOUT)) { //Should not have been there anymore!

            fail(format("Found original batch timeout '%s', when it was not expected in:%s", ORIGINAL_BATCH_TIMEOUT, originalConfigJson));
        }

        out("That's all folks!");

    } catch (Exception e) {
        e.printStackTrace();
        fail(e.getMessage());
    }
}