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HADOOP-8048. Allow merging of Credentials (Daryn Sharp via tgraves)

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git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1242616 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Thomas Graves 2012-02-10 00:17:49 +00:00
parent 3c6863ab4a
commit 2a2faac0de
3 changed files with 101 additions and 2 deletions
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2
hadoop-common-project/hadoop-common/CHANGES.txt
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@ -13,6 +13,8 @@ Trunk (unreleased changes)
(suresh)
IMPROVEMENTS
HADOOP-8048. Allow merging of Credentials (Daryn Sharp via tgraves)
HADOOP-8032. mvn site:stage-deploy should be able to use the scp protocol
to stage documents (Ravi Prakash via tgraves)

24
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/security/Credentials.java
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@ -230,14 +230,34 @@ public void readFields(DataInput in) throws IOException {
/**
* Copy all of the credentials from one credential object into another.
* Existing secrets and tokens are overwritten.
* @param other the credentials to copy
*/
public void addAll(Credentials other) {
addAll(other, true);
}
/**
* Copy all of the credentials from one credential object into another.
* Existing secrets and tokens are not overwritten.
* @param other the credentials to copy
*/
public void mergeAll(Credentials other) {
addAll(other, false);
}
private void addAll(Credentials other, boolean overwrite) {
for(Map.Entry<Text, byte[]> secret: other.secretKeysMap.entrySet()) {
secretKeysMap.put(secret.getKey(), secret.getValue());
Text key = secret.getKey();
if (!secretKeysMap.containsKey(key) || overwrite) {
secretKeysMap.put(key, secret.getValue());
}
}
for(Map.Entry<Text, Token<?>> token: other.tokenMap.entrySet()){
tokenMap.put(token.getKey(), token.getValue());
Text key = token.getKey();
if (!tokenMap.containsKey(key) || overwrite) {
tokenMap.put(key, token.getValue());
}
}
}
}

77
hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/security/TestCredentials.java
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@ -137,4 +137,81 @@ public <T extends TokenIdentifier> void testReadWriteStorage()
}
tmpFileName.delete();
}
static Text secret[] = {
new Text("secret1"),
new Text("secret2"),
new Text("secret3"),
new Text("secret4")
};
static Text service[] = {
new Text("service1"),
new Text("service2"),
new Text("service3"),
new Text("service4")
};
static Token<?> token[] = {
new Token<TokenIdentifier>(),
new Token<TokenIdentifier>(),
new Token<TokenIdentifier>(),
new Token<TokenIdentifier>()
};
@Test
public void addAll() {
Credentials creds = new Credentials();
creds.addToken(service[0], token[0]);
creds.addToken(service[1], token[1]);
creds.addSecretKey(secret[0], secret[0].getBytes());
creds.addSecretKey(secret[1], secret[1].getBytes());
Credentials credsToAdd = new Credentials();
// one duplicate with different value, one new
credsToAdd.addToken(service[0], token[3]);
credsToAdd.addToken(service[2], token[2]);
credsToAdd.addSecretKey(secret[0], secret[3].getBytes());
credsToAdd.addSecretKey(secret[2], secret[2].getBytes());
creds.addAll(credsToAdd);
assertEquals(3, creds.numberOfTokens());
assertEquals(3, creds.numberOfSecretKeys());
// existing token & secret should be overwritten
assertEquals(token[3], creds.getToken(service[0]));
assertEquals(secret[3], new Text(creds.getSecretKey(secret[0])));
// non-duplicate token & secret should be present
assertEquals(token[1], creds.getToken(service[1]));
assertEquals(secret[1], new Text(creds.getSecretKey(secret[1])));
// new token & secret should be added
assertEquals(token[2], creds.getToken(service[2]));
assertEquals(secret[2], new Text(creds.getSecretKey(secret[2])));
}
@Test
public void mergeAll() {
Credentials creds = new Credentials();
creds.addToken(service[0], token[0]);
creds.addToken(service[1], token[1]);
creds.addSecretKey(secret[0], secret[0].getBytes());
creds.addSecretKey(secret[1], secret[1].getBytes());
Credentials credsToAdd = new Credentials();
// one duplicate with different value, one new
credsToAdd.addToken(service[0], token[3]);
credsToAdd.addToken(service[2], token[2]);
credsToAdd.addSecretKey(secret[0], secret[3].getBytes());
credsToAdd.addSecretKey(secret[2], secret[2].getBytes());
creds.mergeAll(credsToAdd);
assertEquals(3, creds.numberOfTokens());
assertEquals(3, creds.numberOfSecretKeys());
// existing token & secret should not be overwritten
assertEquals(token[0], creds.getToken(service[0]));
assertEquals(secret[0], new Text(creds.getSecretKey(secret[0])));
// non-duplicate token & secret should be present
assertEquals(token[1], creds.getToken(service[1]));
assertEquals(secret[1], new Text(creds.getSecretKey(secret[1])));
// new token & secret should be added
assertEquals(token[2], creds.getToken(service[2]));
assertEquals(secret[2], new Text(creds.getSecretKey(secret[2])));
}
}