org.apache.hadoop.hive.llap.security.LlapTokenIdentifier.java Source code

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Here is the source code for org.apache.hadoop.hive.llap.security.LlapTokenIdentifier.java

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/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.apache.hadoop.hive.llap.security;

import java.io.DataInput;
import java.io.DataOutput;
import java.io.IOException;

import org.apache.commons.lang.StringUtils;
import org.apache.hadoop.classification.InterfaceAudience;
import org.apache.hadoop.io.Text;
import org.apache.hadoop.security.token.Token;
import org.apache.hadoop.security.token.delegation.AbstractDelegationTokenIdentifier;

import com.google.common.base.Preconditions;

public class LlapTokenIdentifier extends AbstractDelegationTokenIdentifier {
    private static final String KIND = "LLAP_TOKEN";
    public static final Text KIND_NAME = new Text(KIND);
    private String clusterId;
    private String appId;
    private boolean isSigningRequired;

    public LlapTokenIdentifier() {
        super();
    }

    public LlapTokenIdentifier(Text owner, Text renewer, Text realUser, String clusterId, String appId,
            boolean isSigningRequired) {
        super(owner, renewer, realUser);
        Preconditions.checkNotNull(clusterId);
        this.clusterId = clusterId;
        this.appId = appId == null ? "" : appId;
        this.isSigningRequired = isSigningRequired;
    }

    @Override
    public void write(DataOutput out) throws IOException {
        super.write(out);
        out.writeUTF(clusterId);
        out.writeUTF(appId);
        out.writeBoolean(isSigningRequired);
    }

    @Override
    public void readFields(DataInput in) throws IOException {
        super.readFields(in);
        clusterId = in.readUTF();
        Preconditions.checkNotNull(clusterId);
        appId = in.readUTF();
        isSigningRequired = in.readBoolean();
        appId = appId == null ? "" : appId;
    }

    @Override
    public Text getKind() {
        return KIND_NAME;
    }

    public String getAppId() {
        return appId;
    }

    public String getClusterId() {
        return clusterId;
    }

    public boolean isSigningRequired() {
        return isSigningRequired;
    }

    @Override
    public int hashCode() {
        final int prime = 31;
        int result = prime * super.hashCode() + (StringUtils.isBlank(appId) ? 0 : appId.hashCode());
        result = prime * result + (isSigningRequired ? 1231 : 1237);
        return prime * result + ((clusterId == null) ? 0 : clusterId.hashCode());
    }

    @Override
    public boolean equals(Object obj) {
        if (this == obj)
            return true;
        if (!(obj instanceof LlapTokenIdentifier) || !super.equals(obj))
            return false;
        LlapTokenIdentifier other = (LlapTokenIdentifier) obj;
        return isSigningRequired == other.isSigningRequired
                && (StringUtils.isBlank(appId) ? StringUtils.isBlank(other.appId) : appId.equals(other.appId))
                && (clusterId == null ? other.clusterId == null : clusterId.equals(other.clusterId));
    }

    @Override
    public String toString() {
        return KIND + "; " + super.toString() + ", cluster " + clusterId + ", app ID " + appId + ", signing "
                + isSigningRequired;
    }

    @InterfaceAudience.Private
    public static class Renewer extends Token.TrivialRenewer {
        @Override
        protected Text getKind() {
            return KIND_NAME;
        }
    }
}