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Use abstraction from core 

Original commit: elastic/x-pack-elasticsearch@01b66264e0
This commit is contained in:
Jason Tedor 2015-10-04 16:25:15 -04:00
parent ba86e3968c
commit 6103d96e83
1 changed files with 3 additions and 33 deletions
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36
marvel/src/main/java/org/elasticsearch/marvel/agent/renderer/cluster/ClusterInfoRenderer.java
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@ -7,6 +7,7 @@ package org.elasticsearch.marvel.agent.renderer.cluster;
import org.elasticsearch.ElasticsearchException;
import org.elasticsearch.action.admin.cluster.stats.ClusterStatsResponse;
import org.elasticsearch.common.hash.MessageDigests;
import org.elasticsearch.common.xcontent.ToXContent;
import org.elasticsearch.common.xcontent.XContentBuilder;
import org.elasticsearch.common.xcontent.XContentBuilderString;
@ -16,34 +17,12 @@ import org.elasticsearch.marvel.agent.renderer.AbstractRenderer;
import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.nio.charset.StandardCharsets;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.util.List;
public class ClusterInfoRenderer extends AbstractRenderer<ClusterInfoMarvelDoc> {
static final class MessageDigestSHA256Provider {
private static final MessageDigest digest;
static {
try {
digest = MessageDigest.getInstance("SHA-256");
} catch (NoSuchAlgorithmException e) {
throw new ElasticsearchException("Unexpected exception creating MessageDigest instance", e);
}
}
private static MessageDigest sha256() {
try {
MessageDigest sha = (MessageDigest) digest.clone();
sha.reset();
return sha;
} catch (CloneNotSupportedException e) {
throw new ElasticsearchException("Unexpected exception creating MessageDigest instance", e);
}
}
}
public ClusterInfoRenderer() {
super(null, false);
}
@ -88,16 +67,7 @@ public class ClusterInfoRenderer extends AbstractRenderer<ClusterInfoMarvelDoc>
public static String hash(String licenseStatus, String licenseUid, String licenseType, String licenseExpiryDate, String clusterUUID) {
String toHash = licenseStatus + licenseUid + licenseType + licenseExpiryDate + clusterUUID;
try {
byte[] sha256Bytes = MessageDigestSHA256Provider.sha256().digest(toHash.getBytes("UTF-8"));
StringBuffer hash = new StringBuffer();
for (int i = 0; i < sha256Bytes.length; i++) {
hash.append(Integer.toHexString(0xff & sha256Bytes[i]));
}
return hash.toString();
} catch (UnsupportedEncodingException e) {
throw new ElasticsearchException("Unexpected error calculating SHA-256 MessageDigest", e);
}
return MessageDigests.toHexString(MessageDigests.sha256().digest(toHash.getBytes(StandardCharsets.UTF_8)));
}
static final class Fields {