org.apache.tajo.catalog.partition.Specifier.java Source code

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Here is the source code for org.apache.tajo.catalog.partition.Specifier.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.tajo.catalog.partition;

import com.google.common.base.Objects;
import com.google.gson.Gson;
import com.google.gson.annotations.Expose;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.tajo.catalog.json.CatalogGsonHelper;
import org.apache.tajo.catalog.proto.CatalogProtos;
import org.apache.tajo.common.ProtoObject;
import org.apache.tajo.json.GsonObject;
import org.apache.tajo.util.TUtil;

public class Specifier implements ProtoObject<CatalogProtos.SpecifierProto>, Cloneable, GsonObject {

    private static final Log LOG = LogFactory.getLog(Specifier.class);
    protected CatalogProtos.SpecifierProto.Builder builder = null;

    @Expose
    protected String name;
    @Expose
    protected String expressions;

    public Specifier() {
        builder = CatalogProtos.SpecifierProto.newBuilder();
    }

    public Specifier(String name) {
        this();
        this.name = name;
    }

    public Specifier(String name, String expressions) {
        this();
        this.name = name;
        this.expressions = expressions;
    }

    public Specifier(CatalogProtos.SpecifierProto proto) {
        this();
        this.name = proto.getName().toLowerCase();
        this.expressions = proto.getExpressions();
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getExpressions() {
        return expressions;
    }

    public void setExpressions(String expressions) {
        this.expressions = expressions;
    }

    public boolean equals(Object o) {
        if (o instanceof Specifier) {
            Specifier other = (Specifier) o;
            boolean eq = TUtil.checkEquals(this.name, other.name);
            eq = eq && TUtil.checkEquals(this.expressions, other.expressions);
            return eq;
        }
        return false;
    }

    public int hashCode() {
        return Objects.hashCode(this.name, this.expressions);

    }

    public Object clone() throws CloneNotSupportedException {
        Specifier clone = (Specifier) super.clone();
        clone.builder = CatalogProtos.SpecifierProto.newBuilder();
        clone.name = this.name;
        clone.expressions = this.expressions;
        return clone;
    }

    public String toString() {
        Gson gson = CatalogGsonHelper.getPrettyInstance();
        return gson.toJson(this);
    }

    @Override
    public CatalogProtos.SpecifierProto getProto() {
        if (builder == null) {
            builder = CatalogProtos.SpecifierProto.newBuilder();
        }

        if (this.name != null) {
            builder.setName(this.name);
        }

        if (this.expressions != null) {
            builder.setExpressions(this.expressions);
        }

        return builder.build();
    }

    @Override
    public String toJson() {
        return CatalogGsonHelper.toJson(this, Specifier.class);
    }
}