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Expose authorization state in transform stats
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141 changes: 141 additions & 0 deletions
141
...e/src/main/java/org/elasticsearch/xpack/core/transform/transforms/AuthorizationState.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,141 @@ | ||
| /* | ||
| * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one | ||
| * or more contributor license agreements. Licensed under the Elastic License | ||
| * 2.0; you may not use this file except in compliance with the Elastic License | ||
| * 2.0. | ||
| */ | ||
|
|
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| package org.elasticsearch.xpack.core.transform.transforms; | ||
|
|
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| import org.elasticsearch.common.Strings; | ||
| import org.elasticsearch.common.io.stream.StreamInput; | ||
| import org.elasticsearch.common.io.stream.StreamOutput; | ||
| import org.elasticsearch.common.io.stream.Writeable; | ||
| import org.elasticsearch.core.Nullable; | ||
| import org.elasticsearch.health.HealthStatus; | ||
| import org.elasticsearch.xcontent.ConstructingObjectParser; | ||
| import org.elasticsearch.xcontent.ObjectParser; | ||
| import org.elasticsearch.xcontent.ParseField; | ||
| import org.elasticsearch.xcontent.ToXContent; | ||
| import org.elasticsearch.xcontent.ToXContentObject; | ||
| import org.elasticsearch.xcontent.XContentBuilder; | ||
| import org.elasticsearch.xcontent.XContentParser; | ||
|
|
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| import java.io.IOException; | ||
| import java.time.Instant; | ||
| import java.util.Locale; | ||
| import java.util.Objects; | ||
|
|
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| /** | ||
| * {@link AuthorizationState} holds the state of the authorization performed in the past. | ||
| * By examining the instance of this class the caller can learn whether or not the user was authorized to access the source/dest indices | ||
| * present in the {@link TransformConfig}. | ||
| * | ||
| * This class is immutable. | ||
| */ | ||
| public class AuthorizationState implements Writeable, ToXContentObject { | ||
|
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| public static AuthorizationState green() { | ||
| return new AuthorizationState(System.currentTimeMillis(), HealthStatus.GREEN, null); | ||
| } | ||
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| public static AuthorizationState red(Exception e) { | ||
| return new AuthorizationState(System.currentTimeMillis(), HealthStatus.RED, e != null ? e.getMessage() : "unknown exception"); | ||
| } | ||
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| public static final ParseField TIMESTAMP = new ParseField("timestamp"); | ||
| public static final ParseField STATUS = new ParseField("status"); | ||
| public static final ParseField LAST_AUTH_ERROR = new ParseField("last_auth_error"); | ||
|
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| public static final ConstructingObjectParser<AuthorizationState, Void> PARSER = new ConstructingObjectParser<>( | ||
| "transform_authorization_state", | ||
| true, | ||
| a -> new AuthorizationState((Long) a[0], (HealthStatus) a[1], (String) a[2]) | ||
| ); | ||
|
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| static { | ||
| PARSER.declareLong(ConstructingObjectParser.constructorArg(), TIMESTAMP); | ||
| PARSER.declareField(ConstructingObjectParser.constructorArg(), p -> { | ||
| if (p.currentToken() == XContentParser.Token.VALUE_STRING) { | ||
| return HealthStatus.valueOf(p.text().toUpperCase(Locale.ROOT)); | ||
| } | ||
| throw new IllegalArgumentException("Unsupported token [" + p.currentToken() + "]"); | ||
| }, STATUS, ObjectParser.ValueType.STRING); | ||
| PARSER.declareString(ConstructingObjectParser.optionalConstructorArg(), LAST_AUTH_ERROR); | ||
| } | ||
|
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| private final long timestampMillis; | ||
| private final HealthStatus status; | ||
| @Nullable | ||
| private final String lastAuthError; | ||
|
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| public AuthorizationState(Long timestamp, HealthStatus status, @Nullable String lastAuthError) { | ||
| this.timestampMillis = timestamp; | ||
| this.status = status; | ||
| this.lastAuthError = lastAuthError; | ||
| } | ||
|
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| public AuthorizationState(StreamInput in) throws IOException { | ||
| this.timestampMillis = in.readLong(); | ||
| this.status = in.readEnum(HealthStatus.class); | ||
| this.lastAuthError = in.readOptionalString(); | ||
| } | ||
|
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| public Instant getTimestamp() { | ||
| return Instant.ofEpochMilli(timestampMillis); | ||
| } | ||
|
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| public HealthStatus getStatus() { | ||
| return status; | ||
| } | ||
|
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| public String getLastAuthError() { | ||
| return lastAuthError; | ||
| } | ||
|
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| @Override | ||
| public XContentBuilder toXContent(XContentBuilder builder, ToXContent.Params params) throws IOException { | ||
| builder.startObject(); | ||
| builder.field(TIMESTAMP.getPreferredName(), timestampMillis); | ||
| builder.field(STATUS.getPreferredName(), status.xContentValue()); | ||
| if (lastAuthError != null) { | ||
| builder.field(LAST_AUTH_ERROR.getPreferredName(), lastAuthError); | ||
| } | ||
| builder.endObject(); | ||
| return builder; | ||
| } | ||
|
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| @Override | ||
| public void writeTo(StreamOutput out) throws IOException { | ||
| out.writeLong(timestampMillis); | ||
| status.writeTo(out); | ||
| out.writeOptionalString(lastAuthError); | ||
| } | ||
|
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| @Override | ||
| public boolean equals(Object other) { | ||
| if (this == other) { | ||
| return true; | ||
| } | ||
|
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| if (other == null || getClass() != other.getClass()) { | ||
| return false; | ||
| } | ||
|
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| AuthorizationState that = (AuthorizationState) other; | ||
|
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| return this.timestampMillis == that.timestampMillis | ||
| && this.status.value() == that.status.value() | ||
| && Objects.equals(this.lastAuthError, that.lastAuthError); | ||
| } | ||
|
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| @Override | ||
| public int hashCode() { | ||
| return Objects.hash(timestampMillis, status, lastAuthError); | ||
| } | ||
|
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| @Override | ||
| public String toString() { | ||
| return Strings.toString(this); | ||
| } | ||
| } |
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