HADOOP-10534. KeyProvider getKeysMetadata should take a list of names
rather than returning all keys. (omalley) Conflicts: hadoop-common-project/hadoop-common/CHANGES.txt git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1619517 13f79535-47bb-0310-9956-ffa450edef68
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@ -111,6 +111,9 @@ Release 2.6.0 - UNRELEASED
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HADOOP-10431. Change visibility of KeyStore.Options getter methods to
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public. (tucu)
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HADOOP-10534. KeyProvider getKeysMetadata should take a list of names
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rather than returning all keys. (omalley)
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OPTIMIZATIONS
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HADOOP-10838. Byte array native checksumming. (James Thomas via todd)
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@ -312,20 +312,16 @@ public abstract class KeyProvider {
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/**
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* Get the key metadata for all keys.
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*
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* @return a Map with all the keys and their metadata
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* Get key metadata in bulk.
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* @param names the names of the keys to get
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* @throws IOException
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*/
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public Map<String, Metadata> getKeysMetadata() throws IOException {
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Map<String, Metadata> keysMetadata = new LinkedHashMap<String, Metadata>();
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for (String key : getKeys()) {
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Metadata meta = getMetadata(key);
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if (meta != null) {
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keysMetadata.put(key, meta);
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}
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public Metadata[] getKeysMetadata(String... names) throws IOException {
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Metadata[] result = new Metadata[names.length];
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for (int i=0; i < names.length; ++i) {
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result[i] = getMetadata(names[i]);
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}
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return keysMetadata;
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return result;
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}
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/**
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@ -230,16 +230,16 @@ public class KeyShell extends Configured implements Tool {
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}
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public void execute() throws IOException {
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List<String> keys;
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try {
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List<String> keys = provider.getKeys();
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out.println("Listing keys for KeyProvider: " + provider.toString());
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if (metadata) {
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Map<String, Metadata> keysMeta = provider.getKeysMetadata();
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for (Map.Entry<String, Metadata> entry : keysMeta.entrySet()) {
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out.println(entry.getKey() + " : " + entry.getValue());
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Metadata[] meta =
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provider.getKeysMetadata(keys.toArray(new String[keys.size()]));
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for(int i=0; i < meta.length; ++i) {
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out.println(keys.get(i) + " : " + meta[i]);
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}
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} else {
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keys = provider.getKeys();
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for (String keyName : keys) {
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out.println(keyName);
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}
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