Examples with FileContentsQuery com.hedera.hashgraph.sdk.FileContentsQuery used on opensource projects

Example 1 with FileContentsQuery

use of com.hedera.hashgraph.sdk.FileContentsQuery in project hedera-sdk-java by hashgraph.

the class GetExchangeRatesExample method main.

public static void main(String[] args) throws ReceiptStatusException, TimeoutException, PrecheckStatusException, InvalidProtocolBufferException {
    Client client = Client.forName(HEDERA_NETWORK);
    // Defaults the operator account ID and key such that all generated transactions will be paid for
    // by this account and be signed by this key
    client.setOperator(OPERATOR_ID, OPERATOR_KEY);
    // Get contents of file 0.0.112
    ByteString fileContentsByteString = new FileContentsQuery().setFileId(FileId.fromString("0.0.112")).execute(client);
    byte[] fileContents = fileContentsByteString.toByteArray();
    ExchangeRates exchangeRateSet = ExchangeRates.fromBytes(fileContents);
    // Prints query results to console
    System.out.println("Current numerator: " + exchangeRateSet.currentRate.cents);
    System.out.println("Current denominator: " + exchangeRateSet.currentRate.hbars);
    System.out.println("Current expiration time: " + exchangeRateSet.currentRate.expirationTime.toString());
    System.out.println("Current Exchange Rate: " + exchangeRateSet.currentRate.exchangeRateInCents);
    System.out.println("Next numerator: " + exchangeRateSet.nextRate.cents);
    System.out.println("Next denominator: " + exchangeRateSet.nextRate.hbars);
    System.out.println("Next expiration time: " + exchangeRateSet.nextRate.expirationTime.toString());
    System.out.println("Next Exchange Rate: " + exchangeRateSet.nextRate.exchangeRateInCents);
}

Example 2 with FileContentsQuery

use of com.hedera.hashgraph.sdk.FileContentsQuery in project hedera-sdk-java by hashgraph.

the class FeeSchedulesTest method canFetchFeeSchedules.

@Test
@DisplayName("FeeSchedules (CurrentAndNextFeeSchedule) is fetched and parsed from file 0.0.111")
void canFetchFeeSchedules() throws Exception {
    var testEnv = new IntegrationTestEnv(1);
    ByteString feeSchedulesBytes = new FileContentsQuery().setFileId(new FileId(0, 0, 111)).execute(testEnv.client);
    FeeSchedules feeSchedules = FeeSchedules.fromBytes(feeSchedulesBytes.toByteArray());
    /*
         * Test whether the file 0.0.111 actually contains stuff
         */
    assertThat(feeSchedules.getCurrent()).isNotNull();
    testEnv.close();
}

Example 3 with FileContentsQuery

use of com.hedera.hashgraph.sdk.FileContentsQuery in project hedera-sdk-java by hashgraph.

the class FileAppendIntegrationTest method canAppendLargeContentsToFileDespiteExpiration.

@Test
@DisplayName("Can append large contents to file despite TRANSACTION_EXPIRATION response codes")
void canAppendLargeContentsToFileDespiteExpiration() throws Exception {
    // There are potential bugs in FileAppendTransaction which require more than one node to trigger.
    var testEnv = new IntegrationTestEnv(2);
    var response = new FileCreateTransaction().setKeys(testEnv.operatorKey).setContents("[e2e::FileCreateTransaction]").execute(testEnv.client);
    var fileId = Objects.requireNonNull(response.getReceipt(testEnv.client).fileId);
    Thread.sleep(5000);
    @Var var info = new FileInfoQuery().setFileId(fileId).execute(testEnv.client);
    assertThat(info.fileId).isEqualTo(fileId);
    assertThat(info.size).isEqualTo(28);
    assertThat(info.isDeleted).isFalse();
    assertThat(info.keys).isNotNull();
    assertThat(info.keys.getThreshold()).isNull();
    assertThat(info.keys).isEqualTo(KeyList.of(testEnv.operatorKey));
    var appendTx = new FileAppendTransaction().setFileId(fileId).setContents(Contents.BIG_CONTENTS).setTransactionValidDuration(Duration.ofSeconds(25)).execute(testEnv.client).getReceipt(testEnv.client);
    var contents = new FileContentsQuery().setFileId(fileId).execute(testEnv.client);
    assertThat(contents.toStringUtf8()).isEqualTo("[e2e::FileCreateTransaction]" + Contents.BIG_CONTENTS);
    info = new FileInfoQuery().setFileId(fileId).execute(testEnv.client);
    assertThat(info.fileId).isEqualTo(fileId);
    assertThat(info.size).isEqualTo(13522);
    assertThat(info.isDeleted).isFalse();
    assertThat(info.keys).isNotNull();
    assertThat(info.keys.getThreshold()).isNull();
    assertThat(info.keys).isEqualTo(KeyList.of(testEnv.operatorKey));
    new FileDeleteTransaction().setFileId(fileId).execute(testEnv.client).getReceipt(testEnv.client);
    testEnv.close();
}

Example 4 with FileContentsQuery

use of com.hedera.hashgraph.sdk.FileContentsQuery in project hedera-sdk-java by hashgraph.

the class FileContentsIntegrationTest method canQueryEmptyFileContents.

@Test
@DisplayName("Can query empty file contents")
void canQueryEmptyFileContents() throws Exception {
    var testEnv = new IntegrationTestEnv(1);
    var response = new FileCreateTransaction().setKeys(testEnv.operatorKey).execute(testEnv.client);
    var fileId = Objects.requireNonNull(response.getReceipt(testEnv.client).fileId);
    var contents = new FileContentsQuery().setFileId(fileId).execute(testEnv.client);
    assertThat(contents.size()).isEqualTo(0);
    new FileDeleteTransaction().setFileId(fileId).execute(testEnv.client).getReceipt(testEnv.client);
    testEnv.close();
}

Example 5 with FileContentsQuery

use of com.hedera.hashgraph.sdk.FileContentsQuery in project hedera-sdk-java by hashgraph.

the class FileContentsIntegrationTest method getCostBigMaxQueryFileContents.

@Test
@DisplayName("Can get cost, even with a big max")
void getCostBigMaxQueryFileContents() throws Exception {
    var testEnv = new IntegrationTestEnv(1);
    var response = new FileCreateTransaction().setKeys(testEnv.operatorKey).setContents("[e2e::FileCreateTransaction]").execute(testEnv.client);
    var fileId = Objects.requireNonNull(response.getReceipt(testEnv.client).fileId);
    var contentsQuery = new FileContentsQuery().setFileId(fileId).setMaxQueryPayment(new Hbar(1000));
    var contents = contentsQuery.execute(testEnv.client);
    assertThat(contents.toStringUtf8()).isEqualTo("[e2e::FileCreateTransaction]");
    new FileDeleteTransaction().setFileId(fileId).execute(testEnv.client).getReceipt(testEnv.client);
    testEnv.close();
}