Example usage for org.apache.hadoop.security.token.delegation DelegationKey DelegationKey

Introduction

In this page you can find the example usage for org.apache.hadoop.security.token.delegation DelegationKey DelegationKey.

Prototype

public DelegationKey(int keyId, long expiryDate, byte[] encodedKey) 

Source Link

Usage

From source file:com.cloudera.impala.security.PersistedDelegationTokenSecretManager.java

License:Apache License

/**
 * Synchronize master key updates / sequence generation for multiple nodes.
 * NOTE: {@Link AbstractDelegationTokenSecretManager} keeps currentKey private, so we need
 * to utilize this "hook" to manipulate the key through the object reference.
 * This .20S workaround should cease to exist when Hadoop supports token store.
 *//*from  w  w  w . j  ava 2s .c o m*/
@Override
protected void logUpdateMasterKey(DelegationKey key) throws IOException {
    int keySeq = this.tokenStore.addMasterKey(encodeWritable(key));
    // update key with assigned identifier
    DelegationKey keyWithSeq = new DelegationKey(keySeq, key.getExpiryDate(), key.getKey());
    String keyStr = encodeWritable(keyWithSeq);
    this.tokenStore.updateMasterKey(keySeq, keyStr);
    decodeWritable(key, keyStr);
    LOGGER.info("New master key with key id={}", key.getKeyId());
    super.logUpdateMasterKey(key);
}

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