org.obiba.mica.spi.search.support.AttributeKey.java Source code

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Here is the source code for org.obiba.mica.spi.search.support.AttributeKey.java

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/*
 * Copyright (c) 2018 OBiBa. All rights reserved.
 *
 * This program and the accompanying materials
 * are made available under the terms of the GNU Public License v3.0.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

package org.obiba.mica.spi.search.support;

import java.io.Serializable;
import java.util.Objects;

import javax.annotation.Nullable;
import javax.validation.constraints.NotNull;

import com.google.common.base.Strings;

public class AttributeKey implements Serializable {

    private static final long serialVersionUID = -3129195422457806471L;

    private static String SEPARATOR = "__";

    @NotNull
    private String name;

    private String namespace;

    public AttributeKey(@NotNull String name, @Nullable String namespace) {
        this.name = name;
        this.namespace = namespace;
    }

    @NotNull
    public String getName() {
        return name;
    }

    @Nullable
    public String getNamespace() {
        return namespace;
    }

    public boolean hasNamespace() {
        return !Strings.isNullOrEmpty(namespace);
    }

    public boolean hasNamespace(@Nullable String namespace) {
        return namespace == null ? this.namespace == null : namespace.equals(this.namespace);
    }

    public static String getMapKey(String name, @Nullable String namespace) {
        return Strings.isNullOrEmpty(namespace) ? name : namespace + SEPARATOR + name;
    }

    public static AttributeKey from(String mapKey) {
        if (!mapKey.contains(SEPARATOR))
            return new AttributeKey(mapKey, null);
        else {
            String namespace = mapKey.substring(0, mapKey.indexOf(SEPARATOR));
            return new AttributeKey(mapKey.substring(mapKey.indexOf(SEPARATOR) + 2), namespace);
        }
    }

    @Override
    public int hashCode() {
        return Objects.hash(name, namespace);
    }

    @Override
    public boolean equals(Object obj) {
        if (this == obj)
            return true;
        if (obj == null || getClass() != obj.getClass())
            return false;
        AttributeKey other = (AttributeKey) obj;
        return Objects.equals(name, other.name) && Objects.equals(namespace, other.namespace);
    }

    @Override
    public String toString() {
        return getMapKey(name, namespace);
    }

}